diff options
Diffstat (limited to 'src/opengl/gl2paintengineex')
-rw-r--r-- | src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp | 173 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h | 167 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglcustomshaderstage.cpp | 137 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglcustomshaderstage_p.h | 86 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadermanager.cpp | 875 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadermanager_p.h | 508 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadersource_p.h | 523 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglgradientcache.cpp | 225 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglgradientcache_p.h | 103 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qglshadercache_p.h | 86 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | 2515 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h | 334 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp | 414 | ||||
-rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h | 171 |
14 files changed, 0 insertions, 6317 deletions
diff --git a/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp b/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp deleted file mode 100644 index 979ea19fee..0000000000 --- a/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp +++ /dev/null @@ -1,173 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qgl2pexvertexarray_p.h" - -#include <private/qbezier_p.h> - -QT_BEGIN_NAMESPACE - -void QGL2PEXVertexArray::clear() -{ - vertexArray.reset(); - vertexArrayStops.reset(); - boundingRectDirty = true; -} - - -QGLRect QGL2PEXVertexArray::boundingRect() const -{ - if (boundingRectDirty) - return QGLRect(0.0, 0.0, 0.0, 0.0); - else - return QGLRect(minX, minY, maxX, maxY); -} - -void QGL2PEXVertexArray::addClosingLine(int index) -{ - QPointF point(vertexArray.at(index)); - if (point != QPointF(vertexArray.last())) - vertexArray.add(point); -} - -void QGL2PEXVertexArray::addCentroid(const QVectorPath &path, int subPathIndex) -{ - const QPointF *const points = reinterpret_cast<const QPointF *>(path.points()); - const QPainterPath::ElementType *const elements = path.elements(); - - QPointF sum = points[subPathIndex]; - int count = 1; - - for (int i = subPathIndex + 1; i < path.elementCount() && (!elements || elements[i] != QPainterPath::MoveToElement); ++i) { - sum += points[i]; - ++count; - } - - const QPointF centroid = sum / qreal(count); - vertexArray.add(centroid); -} - -void QGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline) -{ - const QPointF* const points = reinterpret_cast<const QPointF*>(path.points()); - const QPainterPath::ElementType* const elements = path.elements(); - - if (boundingRectDirty) { - minX = maxX = points[0].x(); - minY = maxY = points[0].y(); - boundingRectDirty = false; - } - - if (!outline && !path.isConvex()) - addCentroid(path, 0); - - int lastMoveTo = vertexArray.size(); - vertexArray.add(points[0]); // The first element is always a moveTo - - do { - if (!elements) { -// qDebug("QVectorPath has no elements"); - // If the path has a null elements pointer, the elements implicitly - // start with a moveTo (already added) and continue with lineTos: - for (int i=1; i<path.elementCount(); ++i) - lineToArray(points[i].x(), points[i].y()); - - break; - } -// qDebug("QVectorPath has element types"); - - for (int i=1; i<path.elementCount(); ++i) { - switch (elements[i]) { - case QPainterPath::MoveToElement: - if (!outline) - addClosingLine(lastMoveTo); -// qDebug("element[%d] is a MoveToElement", i); - vertexArrayStops.add(vertexArray.size()); - if (!outline) { - if (!path.isConvex()) addCentroid(path, i); - lastMoveTo = vertexArray.size(); - } - lineToArray(points[i].x(), points[i].y()); // Add the moveTo as a new vertex - break; - case QPainterPath::LineToElement: -// qDebug("element[%d] is a LineToElement", i); - lineToArray(points[i].x(), points[i].y()); - break; - case QPainterPath::CurveToElement: { - QBezier b = QBezier::fromPoints(*(((const QPointF *) points) + i - 1), - points[i], - points[i+1], - points[i+2]); - QRectF bounds = b.bounds(); - // threshold based on same algorithm as in qtriangulatingstroker.cpp - int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * 3.14f / (curveInverseScale * 6)); - if (threshold < 3) threshold = 3; - qreal one_over_threshold_minus_1 = qreal(1) / (threshold - 1); - for (int t=0; t<threshold; ++t) { - QPointF pt = b.pointAt(t * one_over_threshold_minus_1); - lineToArray(pt.x(), pt.y()); - } - i += 2; - break; } - default: - break; - } - } - } while (0); - - if (!outline) - addClosingLine(lastMoveTo); - vertexArrayStops.add(vertexArray.size()); -} - -void QGL2PEXVertexArray::lineToArray(const GLfloat x, const GLfloat y) -{ - vertexArray.add(QGLPoint(x, y)); - - if (x > maxX) - maxX = x; - else if (x < minX) - minX = x; - if (y > maxY) - maxY = y; - else if (y < minY) - minY = y; -} - -QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h b/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h deleted file mode 100644 index 5c95268790..0000000000 --- a/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h +++ /dev/null @@ -1,167 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#ifndef QGL2PEXVERTEXARRAY_P_H -#define QGL2PEXVERTEXARRAY_P_H - -#include <QRectF> - -#include <private/qdatabuffer_p.h> -#include <private/qvectorpath_p.h> -#include <private/qgl_p.h> - -QT_BEGIN_NAMESPACE - -class QGLPoint -{ -public: - QGLPoint(GLfloat new_x, GLfloat new_y) : - x(new_x), y(new_y) {}; - - QGLPoint(const QPointF &p) : - x(p.x()), y(p.y()) {}; - - QGLPoint(const QPointF* p) : - x(p->x()), y(p->y()) {}; - - GLfloat x; - GLfloat y; - - operator QPointF() {return QPointF(x,y);} - operator QPointF() const {return QPointF(x,y);} -}; - -struct QGLRect -{ - QGLRect(const QRectF &r) - : left(r.left()), top(r.top()), right(r.right()), bottom(r.bottom()) {} - - QGLRect(GLfloat l, GLfloat t, GLfloat r, GLfloat b) - : left(l), top(t), right(r), bottom(b) {} - - GLfloat left; - GLfloat top; - GLfloat right; - GLfloat bottom; - - operator QRectF() const {return QRectF(left, top, right-left, bottom-top);} -}; - -class QGL2PEXVertexArray -{ -public: - QGL2PEXVertexArray() : - vertexArray(0), vertexArrayStops(0), - maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10), - boundingRectDirty(true) - { } - - inline void addRect(const QRectF &rect) - { - qreal top = rect.top(); - qreal left = rect.left(); - qreal bottom = rect.bottom(); - qreal right = rect.right(); - - vertexArray << QGLPoint(left, top) - << QGLPoint(right, top) - << QGLPoint(right, bottom) - << QGLPoint(right, bottom) - << QGLPoint(left, bottom) - << QGLPoint(left, top); - } - - inline void addQuad(const QRectF &rect) - { - qreal top = rect.top(); - qreal left = rect.left(); - qreal bottom = rect.bottom(); - qreal right = rect.right(); - - vertexArray << QGLPoint(left, top) - << QGLPoint(right, top) - << QGLPoint(left, bottom) - << QGLPoint(right, bottom); - - } - - inline void addVertex(const GLfloat x, const GLfloat y) - { - vertexArray.add(QGLPoint(x, y)); - } - - void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true); - void clear(); - - QGLPoint* data() {return vertexArray.data();} - int *stops() const { return vertexArrayStops.data(); } - int stopCount() const { return vertexArrayStops.size(); } - QGLRect boundingRect() const; - - int vertexCount() const { return vertexArray.size(); } - - void lineToArray(const GLfloat x, const GLfloat y); - -private: - QDataBuffer<QGLPoint> vertexArray; - QDataBuffer<int> vertexArrayStops; - - GLfloat maxX; - GLfloat maxY; - GLfloat minX; - GLfloat minY; - bool boundingRectDirty; - void addClosingLine(int index); - void addCentroid(const QVectorPath &path, int subPathIndex); -}; - -QT_END_NAMESPACE - -#endif diff --git a/src/opengl/gl2paintengineex/qglcustomshaderstage.cpp b/src/opengl/gl2paintengineex/qglcustomshaderstage.cpp deleted file mode 100644 index 7d6d4595ba..0000000000 --- a/src/opengl/gl2paintengineex/qglcustomshaderstage.cpp +++ /dev/null @@ -1,137 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qglcustomshaderstage_p.h" -#include "qglengineshadermanager_p.h" -#include "qpaintengineex_opengl2_p.h" -#include <private/qpainter_p.h> - -QT_BEGIN_NAMESPACE - -class QGLCustomShaderStagePrivate -{ -public: - QGLCustomShaderStagePrivate() : - m_manager(0) {} - - QPointer<QGLEngineShaderManager> m_manager; - QByteArray m_source; -}; - - - - -QGLCustomShaderStage::QGLCustomShaderStage() - : d_ptr(new QGLCustomShaderStagePrivate) -{ -} - -QGLCustomShaderStage::~QGLCustomShaderStage() -{ - Q_D(QGLCustomShaderStage); - if (d->m_manager) { - d->m_manager->removeCustomStage(); - d->m_manager->sharedShaders->cleanupCustomStage(this); - } - delete d_ptr; -} - -void QGLCustomShaderStage::setUniformsDirty() -{ - Q_D(QGLCustomShaderStage); - if (d->m_manager) - d->m_manager->setDirty(); // ### Probably a bit overkill! -} - -bool QGLCustomShaderStage::setOnPainter(QPainter* p) -{ - Q_D(QGLCustomShaderStage); - if (p->paintEngine()->type() != QPaintEngine::OpenGL2) { - qWarning("QGLCustomShaderStage::setOnPainter() - paint engine not OpenGL2"); - return false; - } - if (d->m_manager) - qWarning("Custom shader is already set on a painter"); - - QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx*>(p->paintEngine()); - d->m_manager = QGL2PaintEngineExPrivate::shaderManagerForEngine(engine); - Q_ASSERT(d->m_manager); - - d->m_manager->setCustomStage(this); - return true; -} - -void QGLCustomShaderStage::removeFromPainter(QPainter* p) -{ - Q_D(QGLCustomShaderStage); - if (p->paintEngine()->type() != QPaintEngine::OpenGL2) - return; - - QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx*>(p->paintEngine()); - d->m_manager = QGL2PaintEngineExPrivate::shaderManagerForEngine(engine); - Q_ASSERT(d->m_manager); - - // Just set the stage to null, don't call removeCustomStage(). - // This should leave the program in a compiled/linked state - // if the next custom shader stage is this one again. - d->m_manager->setCustomStage(0); - d->m_manager = 0; -} - -QByteArray QGLCustomShaderStage::source() const -{ - Q_D(const QGLCustomShaderStage); - return d->m_source; -} - -// Called by the shader manager if another custom shader is attached or -// the manager is deleted -void QGLCustomShaderStage::setInactive() -{ - Q_D(QGLCustomShaderStage); - d->m_manager = 0; -} - -void QGLCustomShaderStage::setSource(const QByteArray& s) -{ - Q_D(QGLCustomShaderStage); - d->m_source = s; -} - -QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qglcustomshaderstage_p.h b/src/opengl/gl2paintengineex/qglcustomshaderstage_p.h deleted file mode 100644 index 77421ebdd3..0000000000 --- a/src/opengl/gl2paintengineex/qglcustomshaderstage_p.h +++ /dev/null @@ -1,86 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QGL_CUSTOM_SHADER_STAGE_H -#define QGL_CUSTOM_SHADER_STAGE_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QGLShaderProgram> - -QT_BEGIN_NAMESPACE - - -class QGLCustomShaderStagePrivate; -class Q_OPENGL_EXPORT QGLCustomShaderStage -{ - Q_DECLARE_PRIVATE(QGLCustomShaderStage) -public: - QGLCustomShaderStage(); - virtual ~QGLCustomShaderStage(); - virtual void setUniforms(QGLShaderProgram*) {} - - void setUniformsDirty(); - - bool setOnPainter(QPainter*); - void removeFromPainter(QPainter*); - QByteArray source() const; - - void setInactive(); -protected: - void setSource(const QByteArray&); - -private: - QGLCustomShaderStagePrivate* d_ptr; -}; - - -QT_END_NAMESPACE - - -#endif diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager.cpp b/src/opengl/gl2paintengineex/qglengineshadermanager.cpp deleted file mode 100644 index 47e8531959..0000000000 --- a/src/opengl/gl2paintengineex/qglengineshadermanager.cpp +++ /dev/null @@ -1,875 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qglengineshadermanager_p.h" -#include "qglengineshadersource_p.h" -#include "qpaintengineex_opengl2_p.h" -#include "qglshadercache_p.h" - -#include <QtGui/private/qopenglcontext_p.h> - -#if defined(QT_DEBUG) -#include <QMetaEnum> -#endif - -#include <algorithm> - -// #define QT_GL_SHARED_SHADER_DEBUG - -QT_BEGIN_NAMESPACE - -class QGLEngineSharedShadersResource : public QOpenGLSharedResource -{ -public: - QGLEngineSharedShadersResource(QOpenGLContext *ctx) - : QOpenGLSharedResource(ctx->shareGroup()) - , m_shaders(new QGLEngineSharedShaders(QGLContext::fromOpenGLContext(ctx))) - { - } - - ~QGLEngineSharedShadersResource() - { - delete m_shaders; - } - - void invalidateResource() override - { - delete m_shaders; - m_shaders = 0; - } - - void freeResource(QOpenGLContext *) override - { - } - - QGLEngineSharedShaders *shaders() const { return m_shaders; } - -private: - QGLEngineSharedShaders *m_shaders; -}; - -class QGLShaderStorage -{ -public: - QGLEngineSharedShaders *shadersForThread(const QGLContext *context) { - QOpenGLMultiGroupSharedResource *&shaders = m_storage.localData(); - if (!shaders) - shaders = new QOpenGLMultiGroupSharedResource; - QGLEngineSharedShadersResource *resource = - shaders->value<QGLEngineSharedShadersResource>(context->contextHandle()); - return resource ? resource->shaders() : 0; - } - -private: - QThreadStorage<QOpenGLMultiGroupSharedResource *> m_storage; -}; - -Q_GLOBAL_STATIC(QGLShaderStorage, qt_shader_storage); - -QGLEngineSharedShaders *QGLEngineSharedShaders::shadersForContext(const QGLContext *context) -{ - return qt_shader_storage()->shadersForThread(context); -} - -const char* QGLEngineSharedShaders::qShaderSnippets[] = { - 0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0 -}; - -QGLEngineSharedShaders::QGLEngineSharedShaders(const QGLContext* context) - : blitShaderProg(0) - , simpleShaderProg(0) -{ - -/* - Rather than having the shader source array statically initialised, it is initialised - here instead. This is to allow new shader names to be inserted or existing names moved - around without having to change the order of the glsl strings. It is hoped this will - make future hard-to-find runtime bugs more obvious and generally give more solid code. -*/ - static bool snippetsPopulated = false; - if (!snippetsPopulated) { - - const char** code = qShaderSnippets; // shortcut - - code[MainVertexShader] = qglslMainVertexShader; - code[MainWithTexCoordsVertexShader] = qglslMainWithTexCoordsVertexShader; - code[MainWithTexCoordsAndOpacityVertexShader] = qglslMainWithTexCoordsAndOpacityVertexShader; - - code[UntransformedPositionVertexShader] = qglslUntransformedPositionVertexShader; - code[PositionOnlyVertexShader] = qglslPositionOnlyVertexShader; - code[ComplexGeometryPositionOnlyVertexShader] = qglslComplexGeometryPositionOnlyVertexShader; - code[PositionWithPatternBrushVertexShader] = qglslPositionWithPatternBrushVertexShader; - code[PositionWithLinearGradientBrushVertexShader] = qglslPositionWithLinearGradientBrushVertexShader; - code[PositionWithConicalGradientBrushVertexShader] = qglslPositionWithConicalGradientBrushVertexShader; - code[PositionWithRadialGradientBrushVertexShader] = qglslPositionWithRadialGradientBrushVertexShader; - code[PositionWithTextureBrushVertexShader] = qglslPositionWithTextureBrushVertexShader; - code[AffinePositionWithPatternBrushVertexShader] = qglslAffinePositionWithPatternBrushVertexShader; - code[AffinePositionWithLinearGradientBrushVertexShader] = qglslAffinePositionWithLinearGradientBrushVertexShader; - code[AffinePositionWithConicalGradientBrushVertexShader] = qglslAffinePositionWithConicalGradientBrushVertexShader; - code[AffinePositionWithRadialGradientBrushVertexShader] = qglslAffinePositionWithRadialGradientBrushVertexShader; - code[AffinePositionWithTextureBrushVertexShader] = qglslAffinePositionWithTextureBrushVertexShader; - - code[MainFragmentShader_CMO] = qglslMainFragmentShader_CMO; - code[MainFragmentShader_CM] = qglslMainFragmentShader_CM; - code[MainFragmentShader_MO] = qglslMainFragmentShader_MO; - code[MainFragmentShader_M] = qglslMainFragmentShader_M; - code[MainFragmentShader_CO] = qglslMainFragmentShader_CO; - code[MainFragmentShader_C] = qglslMainFragmentShader_C; - code[MainFragmentShader_O] = qglslMainFragmentShader_O; - code[MainFragmentShader] = qglslMainFragmentShader; - code[MainFragmentShader_ImageArrays] = qglslMainFragmentShader_ImageArrays; - - code[ImageSrcFragmentShader] = qglslImageSrcFragmentShader; - code[ImageSrcWithPatternFragmentShader] = qglslImageSrcWithPatternFragmentShader; - code[NonPremultipliedImageSrcFragmentShader] = qglslNonPremultipliedImageSrcFragmentShader; - code[CustomImageSrcFragmentShader] = qglslCustomSrcFragmentShader; // Calls "customShader", which must be appended - code[SolidBrushSrcFragmentShader] = qglslSolidBrushSrcFragmentShader; - if (!context->contextHandle()->isOpenGLES()) - code[TextureBrushSrcFragmentShader] = qglslTextureBrushSrcFragmentShader_desktop; - else - code[TextureBrushSrcFragmentShader] = qglslTextureBrushSrcFragmentShader_ES; - code[TextureBrushSrcWithPatternFragmentShader] = qglslTextureBrushSrcWithPatternFragmentShader; - code[PatternBrushSrcFragmentShader] = qglslPatternBrushSrcFragmentShader; - code[LinearGradientBrushSrcFragmentShader] = qglslLinearGradientBrushSrcFragmentShader; - code[RadialGradientBrushSrcFragmentShader] = qglslRadialGradientBrushSrcFragmentShader; - code[ConicalGradientBrushSrcFragmentShader] = qglslConicalGradientBrushSrcFragmentShader; - code[ShockingPinkSrcFragmentShader] = qglslShockingPinkSrcFragmentShader; - - code[NoMaskFragmentShader] = ""; - code[MaskFragmentShader] = qglslMaskFragmentShader; - code[RgbMaskFragmentShaderPass1] = qglslRgbMaskFragmentShaderPass1; - code[RgbMaskFragmentShaderPass2] = qglslRgbMaskFragmentShaderPass2; - code[RgbMaskWithGammaFragmentShader] = ""; //### - - code[NoCompositionModeFragmentShader] = ""; - code[MultiplyCompositionModeFragmentShader] = ""; //### - code[ScreenCompositionModeFragmentShader] = ""; //### - code[OverlayCompositionModeFragmentShader] = ""; //### - code[DarkenCompositionModeFragmentShader] = ""; //### - code[LightenCompositionModeFragmentShader] = ""; //### - code[ColorDodgeCompositionModeFragmentShader] = ""; //### - code[ColorBurnCompositionModeFragmentShader] = ""; //### - code[HardLightCompositionModeFragmentShader] = ""; //### - code[SoftLightCompositionModeFragmentShader] = ""; //### - code[DifferenceCompositionModeFragmentShader] = ""; //### - code[ExclusionCompositionModeFragmentShader] = ""; //### - -#if defined(QT_DEBUG) - // Check that all the elements have been filled: - for (int i = 0; i < TotalSnippetCount; ++i) { - if (Q_UNLIKELY(!qShaderSnippets[i])) { - qFatal("Shader snippet for %s (#%d) is missing!", - snippetNameStr(SnippetName(i)).constData(), i); - } - } -#endif - snippetsPopulated = true; - } - - QGLShader* fragShader; - QGLShader* vertexShader; - QByteArray vertexSource; - QByteArray fragSource; - - // Compile up the simple shader: - vertexSource.append(qShaderSnippets[MainVertexShader]); - vertexSource.append(qShaderSnippets[PositionOnlyVertexShader]); - - fragSource.append(qShaderSnippets[MainFragmentShader]); - fragSource.append(qShaderSnippets[ShockingPinkSrcFragmentShader]); - - simpleShaderProg = new QGLShaderProgram(context, 0); - - CachedShader simpleShaderCache(fragSource, vertexSource); - - bool inCache = simpleShaderCache.load(simpleShaderProg, context); - - if (!inCache) { - vertexShader = new QGLShader(QGLShader::Vertex, context, 0); - shaders.append(vertexShader); - if (!vertexShader->compileSourceCode(vertexSource)) - qWarning("Vertex shader for simpleShaderProg (MainVertexShader & PositionOnlyVertexShader) failed to compile"); - - fragShader = new QGLShader(QGLShader::Fragment, context, 0); - shaders.append(fragShader); - if (!fragShader->compileSourceCode(fragSource)) - qWarning("Fragment shader for simpleShaderProg (MainFragmentShader & ShockingPinkSrcFragmentShader) failed to compile"); - - simpleShaderProg->addShader(vertexShader); - simpleShaderProg->addShader(fragShader); - - simpleShaderProg->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - simpleShaderProg->bindAttributeLocation("pmvMatrix1", QT_PMV_MATRIX_1_ATTR); - simpleShaderProg->bindAttributeLocation("pmvMatrix2", QT_PMV_MATRIX_2_ATTR); - simpleShaderProg->bindAttributeLocation("pmvMatrix3", QT_PMV_MATRIX_3_ATTR); - } - - simpleShaderProg->link(); - - if (Q_UNLIKELY(!simpleShaderProg->isLinked())) { - qCritical("Errors linking simple shader: %s", qPrintable(simpleShaderProg->log())); - } else { - if (!inCache) - simpleShaderCache.store(simpleShaderProg, context); - } - - // Compile the blit shader: - vertexSource.clear(); - vertexSource.append(qShaderSnippets[MainWithTexCoordsVertexShader]); - vertexSource.append(qShaderSnippets[UntransformedPositionVertexShader]); - - fragSource.clear(); - fragSource.append(qShaderSnippets[MainFragmentShader]); - fragSource.append(qShaderSnippets[ImageSrcFragmentShader]); - - blitShaderProg = new QGLShaderProgram(context, 0); - - CachedShader blitShaderCache(fragSource, vertexSource); - - inCache = blitShaderCache.load(blitShaderProg, context); - - if (!inCache) { - vertexShader = new QGLShader(QGLShader::Vertex, context, 0); - shaders.append(vertexShader); - if (!vertexShader->compileSourceCode(vertexSource)) - qWarning("Vertex shader for blitShaderProg (MainWithTexCoordsVertexShader & UntransformedPositionVertexShader) failed to compile"); - - fragShader = new QGLShader(QGLShader::Fragment, context, 0); - shaders.append(fragShader); - if (!fragShader->compileSourceCode(fragSource)) - qWarning("Fragment shader for blitShaderProg (MainFragmentShader & ImageSrcFragmentShader) failed to compile"); - - blitShaderProg->addShader(vertexShader); - blitShaderProg->addShader(fragShader); - - blitShaderProg->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); - blitShaderProg->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - } - - blitShaderProg->link(); - if (Q_UNLIKELY(!blitShaderProg->isLinked())) { - qCritical("Errors linking blit shader: %s", qPrintable(blitShaderProg->log())); - } else { - if (!inCache) - blitShaderCache.store(blitShaderProg, context); - } - -#ifdef QT_GL_SHARED_SHADER_DEBUG - qDebug(" -> QGLEngineSharedShaders() %p for thread %p.", this, QThread::currentThread()); -#endif -} - -QGLEngineSharedShaders::~QGLEngineSharedShaders() -{ -#ifdef QT_GL_SHARED_SHADER_DEBUG - qDebug(" -> ~QGLEngineSharedShaders() %p for thread %p.", this, QThread::currentThread()); -#endif - qDeleteAll(shaders); - shaders.clear(); - - qDeleteAll(cachedPrograms); - cachedPrograms.clear(); - - if (blitShaderProg) { - delete blitShaderProg; - blitShaderProg = 0; - } - - if (simpleShaderProg) { - delete simpleShaderProg; - simpleShaderProg = 0; - } -} - -#if defined (QT_DEBUG) -QByteArray QGLEngineSharedShaders::snippetNameStr(SnippetName name) -{ - QMetaEnum m = staticMetaObject.enumerator(staticMetaObject.indexOfEnumerator("SnippetName")); - return QByteArray(m.valueToKey(name)); -} -#endif - -// The address returned here will only be valid until next time this function is called. -// The program is return bound. -QGLEngineShaderProg *QGLEngineSharedShaders::findProgramInCache(const QGLEngineShaderProg &prog) -{ - for (int i = 0; i < cachedPrograms.size(); ++i) { - QGLEngineShaderProg *cachedProg = cachedPrograms.at(i); - if (*cachedProg == prog) { - // Move the program to the top of the list as a poor-man's cache algo - cachedPrograms.move(i, 0); - cachedProg->program->bind(); - return cachedProg; - } - } - - QScopedPointer<QGLEngineShaderProg> newProg; - - do { - QByteArray fragSource; - // Insert the custom stage before the srcPixel shader to work around an ATI driver bug - // where you cannot forward declare a function that takes a sampler as argument. - if (prog.srcPixelFragShader == CustomImageSrcFragmentShader) - fragSource.append(prog.customStageSource); - fragSource.append(qShaderSnippets[prog.mainFragShader]); - fragSource.append(qShaderSnippets[prog.srcPixelFragShader]); - if (prog.compositionFragShader) - fragSource.append(qShaderSnippets[prog.compositionFragShader]); - if (prog.maskFragShader) - fragSource.append(qShaderSnippets[prog.maskFragShader]); - - QByteArray vertexSource; - vertexSource.append(qShaderSnippets[prog.mainVertexShader]); - vertexSource.append(qShaderSnippets[prog.positionVertexShader]); - - QScopedPointer<QGLShaderProgram> shaderProgram(new QGLShaderProgram); - - CachedShader shaderCache(fragSource, vertexSource); - bool inCache = shaderCache.load(shaderProgram.data(), QGLContext::currentContext()); - - if (!inCache) { - - QScopedPointer<QGLShader> fragShader(new QGLShader(QGLShader::Fragment)); - QByteArray description; -#if defined(QT_DEBUG) - // Name the shader for easier debugging - description.append("Fragment shader: main="); - description.append(snippetNameStr(prog.mainFragShader)); - description.append(", srcPixel="); - description.append(snippetNameStr(prog.srcPixelFragShader)); - if (prog.compositionFragShader) { - description.append(", composition="); - description.append(snippetNameStr(prog.compositionFragShader)); - } - if (prog.maskFragShader) { - description.append(", mask="); - description.append(snippetNameStr(prog.maskFragShader)); - } - fragShader->setObjectName(QString::fromLatin1(description)); -#endif - if (!fragShader->compileSourceCode(fragSource)) { - qWarning() << "Warning:" << description << "failed to compile!"; - break; - } - - QScopedPointer<QGLShader> vertexShader(new QGLShader(QGLShader::Vertex)); -#if defined(QT_DEBUG) - // Name the shader for easier debugging - description.clear(); - description.append("Vertex shader: main="); - description.append(snippetNameStr(prog.mainVertexShader)); - description.append(", position="); - description.append(snippetNameStr(prog.positionVertexShader)); - vertexShader->setObjectName(QString::fromLatin1(description)); -#endif - if (!vertexShader->compileSourceCode(vertexSource)) { - qWarning() << "Warning:" << description << "failed to compile!"; - break; - } - - shaders.append(vertexShader.data()); - shaders.append(fragShader.data()); - shaderProgram->addShader(vertexShader.take()); - shaderProgram->addShader(fragShader.take()); - - // We have to bind the vertex attribute names before the program is linked: - shaderProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - if (prog.useTextureCoords) - shaderProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); - if (prog.useOpacityAttribute) - shaderProgram->bindAttributeLocation("opacityArray", QT_OPACITY_ATTR); - if (prog.usePmvMatrixAttribute) { - shaderProgram->bindAttributeLocation("pmvMatrix1", QT_PMV_MATRIX_1_ATTR); - shaderProgram->bindAttributeLocation("pmvMatrix2", QT_PMV_MATRIX_2_ATTR); - shaderProgram->bindAttributeLocation("pmvMatrix3", QT_PMV_MATRIX_3_ATTR); - } - } - - newProg.reset(new QGLEngineShaderProg(prog)); - newProg->program = shaderProgram.take(); - - newProg->program->link(); - if (newProg->program->isLinked()) { - if (!inCache) - shaderCache.store(newProg->program, QGLContext::currentContext()); - } else { - QString error; - error = QLatin1String("Shader program failed to link,"); -#if defined(QT_DEBUG) - QLatin1String br("\n"); - error += QLatin1String("\n Shaders Used:\n"); - for (int i = 0; i < newProg->program->shaders().count(); ++i) { - QGLShader *shader = newProg->program->shaders().at(i); - error += QLatin1String(" ") + shader->objectName() + QLatin1String(": \n") - + QLatin1String(shader->sourceCode()) + br; - } -#endif - error += QLatin1String(" Error Log:\n") - + QLatin1String(" ") + newProg->program->log(); - qWarning() << error; - break; - } - - newProg->program->bind(); - - if (newProg->maskFragShader != QGLEngineSharedShaders::NoMaskFragmentShader) { - GLuint location = newProg->program->uniformLocation("maskTexture"); - newProg->program->setUniformValue(location, QT_MASK_TEXTURE_UNIT); - } - - if (cachedPrograms.count() > 30) { - // The cache is full, so delete the last 5 programs in the list. - // These programs will be least used, as a program us bumped to - // the top of the list when it's used. - for (int i = 0; i < 5; ++i) { - delete cachedPrograms.last(); - cachedPrograms.removeLast(); - } - } - - cachedPrograms.insert(0, newProg.data()); - } while (false); - - return newProg.take(); -} - -void QGLEngineSharedShaders::cleanupCustomStage(QGLCustomShaderStage* stage) -{ - auto hasStageAsCustomShaderSouce = [stage](QGLEngineShaderProg *cachedProg) -> bool { - if (cachedProg->customStageSource == stage->source()) { - delete cachedProg; - return true; - } - return false; - }; - cachedPrograms.erase(std::remove_if(cachedPrograms.begin(), cachedPrograms.end(), - hasStageAsCustomShaderSouce), - cachedPrograms.end()); -} - - -QGLEngineShaderManager::QGLEngineShaderManager(QGLContext* context) - : ctx(context), - shaderProgNeedsChanging(true), - complexGeometry(false), - srcPixelType(Qt::NoBrush), - opacityMode(NoOpacity), - maskType(NoMask), - compositionMode(QPainter::CompositionMode_SourceOver), - customSrcStage(0), - currentShaderProg(0) -{ - sharedShaders = QGLEngineSharedShaders::shadersForContext(context); -} - -QGLEngineShaderManager::~QGLEngineShaderManager() -{ - //### - removeCustomStage(); -} - -GLuint QGLEngineShaderManager::getUniformLocation(Uniform id) -{ - if (!currentShaderProg) - return 0; - - QVector<uint> &uniformLocations = currentShaderProg->uniformLocations; - if (uniformLocations.isEmpty()) - uniformLocations.fill(GLuint(-1), NumUniforms); - - static const char *const uniformNames[] = { - "imageTexture", - "patternColor", - "globalOpacity", - "depth", - "maskTexture", - "fragmentColor", - "linearData", - "angle", - "halfViewportSize", - "fmp", - "fmp2_m_radius2", - "inverse_2_fmp2_m_radius2", - "sqrfr", - "bradius", - "invertedTextureSize", - "brushTransform", - "brushTexture", - "matrix", - "translateZ" - }; - - if (uniformLocations.at(id) == GLuint(-1)) - uniformLocations[id] = currentShaderProg->program->uniformLocation(uniformNames[id]); - - return uniformLocations.at(id); -} - - -void QGLEngineShaderManager::optimiseForBrushTransform(QTransform::TransformationType transformType) -{ - Q_UNUSED(transformType); // Currently ignored -} - -void QGLEngineShaderManager::setDirty() -{ - shaderProgNeedsChanging = true; -} - -void QGLEngineShaderManager::setSrcPixelType(Qt::BrushStyle style) -{ - Q_ASSERT(style != Qt::NoBrush); - if (srcPixelType == PixelSrcType(style)) - return; - - srcPixelType = style; - shaderProgNeedsChanging = true; //### -} - -void QGLEngineShaderManager::setSrcPixelType(PixelSrcType type) -{ - if (srcPixelType == type) - return; - - srcPixelType = type; - shaderProgNeedsChanging = true; //### -} - -void QGLEngineShaderManager::setOpacityMode(OpacityMode mode) -{ - if (opacityMode == mode) - return; - - opacityMode = mode; - shaderProgNeedsChanging = true; //### -} - -void QGLEngineShaderManager::setMaskType(MaskType type) -{ - if (maskType == type) - return; - - maskType = type; - shaderProgNeedsChanging = true; //### -} - -void QGLEngineShaderManager::setCompositionMode(QPainter::CompositionMode mode) -{ - if (compositionMode == mode) - return; - - compositionMode = mode; - shaderProgNeedsChanging = true; //### -} - -void QGLEngineShaderManager::setCustomStage(QGLCustomShaderStage* stage) -{ - if (customSrcStage) - removeCustomStage(); - customSrcStage = stage; - shaderProgNeedsChanging = true; -} - -void QGLEngineShaderManager::removeCustomStage() -{ - if (customSrcStage) - customSrcStage->setInactive(); - customSrcStage = 0; - shaderProgNeedsChanging = true; -} - -QGLShaderProgram* QGLEngineShaderManager::currentProgram() -{ - if (currentShaderProg) - return currentShaderProg->program; - else - return sharedShaders->simpleProgram(); -} - -void QGLEngineShaderManager::useSimpleProgram() -{ - sharedShaders->simpleProgram()->bind(); - QGLContextPrivate* ctx_d = ctx->d_func(); - ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true); - ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, false); - ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false); - shaderProgNeedsChanging = true; -} - -void QGLEngineShaderManager::useBlitProgram() -{ - sharedShaders->blitProgram()->bind(); - QGLContextPrivate* ctx_d = ctx->d_func(); - ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true); - ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, true); - ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false); - shaderProgNeedsChanging = true; -} - -QGLShaderProgram* QGLEngineShaderManager::simpleProgram() -{ - return sharedShaders->simpleProgram(); -} - -QGLShaderProgram* QGLEngineShaderManager::blitProgram() -{ - return sharedShaders->blitProgram(); -} - - - -// Select & use the correct shader program using the current state. -// Returns \c true if program needed changing. -bool QGLEngineShaderManager::useCorrectShaderProg() -{ - if (!shaderProgNeedsChanging) - return false; - - bool useCustomSrc = customSrcStage != 0; - if (useCustomSrc && srcPixelType != QGLEngineShaderManager::ImageSrc && srcPixelType != Qt::TexturePattern) { - useCustomSrc = false; - qWarning("QGLEngineShaderManager - Ignoring custom shader stage for non image src"); - } - - QGLEngineShaderProg requiredProgram; - - bool texCoords = false; - - // Choose vertex shader shader position function (which typically also sets - // varyings) and the source pixel (srcPixel) fragment shader function: - requiredProgram.positionVertexShader = QGLEngineSharedShaders::InvalidSnippetName; - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::InvalidSnippetName; - bool isAffine = brushTransform.isAffine(); - if ( (srcPixelType >= Qt::Dense1Pattern) && (srcPixelType <= Qt::DiagCrossPattern) ) { - if (isAffine) - requiredProgram.positionVertexShader = QGLEngineSharedShaders::AffinePositionWithPatternBrushVertexShader; - else - requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionWithPatternBrushVertexShader; - - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::PatternBrushSrcFragmentShader; - } - else switch (srcPixelType) { - default: - case Qt::NoBrush: - qFatal("QGLEngineShaderManager::useCorrectShaderProg() - Qt::NoBrush style is set"); - break; - case QGLEngineShaderManager::ImageSrc: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::ImageSrcFragmentShader; - requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QGLEngineShaderManager::NonPremultipliedImageSrc: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::NonPremultipliedImageSrcFragmentShader; - requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QGLEngineShaderManager::PatternSrc: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::ImageSrcWithPatternFragmentShader; - requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QGLEngineShaderManager::TextureSrcWithPattern: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::TextureBrushSrcWithPatternFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithTextureBrushVertexShader - : QGLEngineSharedShaders::PositionWithTextureBrushVertexShader; - break; - case Qt::SolidPattern: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::SolidBrushSrcFragmentShader; - requiredProgram.positionVertexShader = QGLEngineSharedShaders::PositionOnlyVertexShader; - break; - case Qt::LinearGradientPattern: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::LinearGradientBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithLinearGradientBrushVertexShader - : QGLEngineSharedShaders::PositionWithLinearGradientBrushVertexShader; - break; - case Qt::ConicalGradientPattern: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::ConicalGradientBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithConicalGradientBrushVertexShader - : QGLEngineSharedShaders::PositionWithConicalGradientBrushVertexShader; - break; - case Qt::RadialGradientPattern: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::RadialGradientBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithRadialGradientBrushVertexShader - : QGLEngineSharedShaders::PositionWithRadialGradientBrushVertexShader; - break; - case Qt::TexturePattern: - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::TextureBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QGLEngineSharedShaders::AffinePositionWithTextureBrushVertexShader - : QGLEngineSharedShaders::PositionWithTextureBrushVertexShader; - break; - }; - - if (useCustomSrc) { - requiredProgram.srcPixelFragShader = QGLEngineSharedShaders::CustomImageSrcFragmentShader; - requiredProgram.customStageSource = customSrcStage->source(); - } - - const bool hasCompose = compositionMode > QPainter::CompositionMode_Plus; - const bool hasMask = maskType != QGLEngineShaderManager::NoMask; - - // Choose fragment shader main function: - if (opacityMode == AttributeOpacity) { - Q_ASSERT(!hasCompose && !hasMask); - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_ImageArrays; - } else { - bool useGlobalOpacity = (opacityMode == UniformOpacity); - if (hasCompose && hasMask && useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_CMO; - if (hasCompose && hasMask && !useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_CM; - if (!hasCompose && hasMask && useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_MO; - if (!hasCompose && hasMask && !useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_M; - if (hasCompose && !hasMask && useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_CO; - if (hasCompose && !hasMask && !useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_C; - if (!hasCompose && !hasMask && useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader_O; - if (!hasCompose && !hasMask && !useGlobalOpacity) - requiredProgram.mainFragShader = QGLEngineSharedShaders::MainFragmentShader; - } - - if (hasMask) { - if (maskType == PixelMask) { - requiredProgram.maskFragShader = QGLEngineSharedShaders::MaskFragmentShader; - texCoords = true; - } else if (maskType == SubPixelMaskPass1) { - requiredProgram.maskFragShader = QGLEngineSharedShaders::RgbMaskFragmentShaderPass1; - texCoords = true; - } else if (maskType == SubPixelMaskPass2) { - requiredProgram.maskFragShader = QGLEngineSharedShaders::RgbMaskFragmentShaderPass2; - texCoords = true; - } else if (maskType == SubPixelWithGammaMask) { - requiredProgram.maskFragShader = QGLEngineSharedShaders::RgbMaskWithGammaFragmentShader; - texCoords = true; - } else { - qCritical("QGLEngineShaderManager::useCorrectShaderProg() - Unknown mask type"); - } - } else { - requiredProgram.maskFragShader = QGLEngineSharedShaders::NoMaskFragmentShader; - } - - if (hasCompose) { - switch (compositionMode) { - case QPainter::CompositionMode_Multiply: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::MultiplyCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Screen: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::ScreenCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Overlay: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::OverlayCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Darken: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::DarkenCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Lighten: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::LightenCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_ColorDodge: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::ColorDodgeCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_ColorBurn: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::ColorBurnCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_HardLight: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::HardLightCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_SoftLight: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::SoftLightCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Difference: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::DifferenceCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Exclusion: - requiredProgram.compositionFragShader = QGLEngineSharedShaders::ExclusionCompositionModeFragmentShader; - break; - default: - qWarning("QGLEngineShaderManager::useCorrectShaderProg() - Unsupported composition mode"); - } - } else { - requiredProgram.compositionFragShader = QGLEngineSharedShaders::NoCompositionModeFragmentShader; - } - - // Choose vertex shader main function - if (opacityMode == AttributeOpacity) { - Q_ASSERT(texCoords); - requiredProgram.mainVertexShader = QGLEngineSharedShaders::MainWithTexCoordsAndOpacityVertexShader; - } else if (texCoords) { - requiredProgram.mainVertexShader = QGLEngineSharedShaders::MainWithTexCoordsVertexShader; - } else { - requiredProgram.mainVertexShader = QGLEngineSharedShaders::MainVertexShader; - } - requiredProgram.useTextureCoords = texCoords; - requiredProgram.useOpacityAttribute = (opacityMode == AttributeOpacity); - if (complexGeometry && srcPixelType == Qt::SolidPattern) { - requiredProgram.positionVertexShader = QGLEngineSharedShaders::ComplexGeometryPositionOnlyVertexShader; - requiredProgram.usePmvMatrixAttribute = false; - } else { - requiredProgram.usePmvMatrixAttribute = true; - - // Force complexGeometry off, since we currently don't support that mode for - // non-solid brushes - complexGeometry = false; - } - - // At this point, requiredProgram is fully populated so try to find the program in the cache - currentShaderProg = sharedShaders->findProgramInCache(requiredProgram); - - if (currentShaderProg && useCustomSrc) { - customSrcStage->setUniforms(currentShaderProg->program); - } - - // Make sure all the vertex attribute arrays the program uses are enabled (and the ones it - // doesn't use are disabled) - QGLContextPrivate* ctx_d = ctx->d_func(); - ctx_d->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true); - ctx_d->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, currentShaderProg && currentShaderProg->useTextureCoords); - ctx_d->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, currentShaderProg && currentShaderProg->useOpacityAttribute); - - shaderProgNeedsChanging = false; - return true; -} - -QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h deleted file mode 100644 index d23b3ad550..0000000000 --- a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h +++ /dev/null @@ -1,508 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -/* - VERTEX SHADERS - ============== - - Vertex shaders are specified as multiple (partial) shaders. On desktop, - this works fine. On ES, QGLShader & QGLShaderProgram will make partial - shaders work by concatenating the source in each QGLShader and compiling - it as a single shader. This is abstracted nicely by QGLShaderProgram and - the GL2 engine doesn't need to worry about it. - - Generally, there's two vertex shader objects. The position shaders are - the ones which set gl_Position. There's also two "main" vertex shaders, - one which just calls the position shader and another which also passes - through some texture coordinates from a vertex attribute array to a - varying. These texture coordinates are used for mask position in text - rendering and for the source coordinates in drawImage/drawPixmap. There's - also a "Simple" vertex shader for rendering a solid colour (used to render - into the stencil buffer where the actual colour value is discarded). - - The position shaders for brushes look scary. This is because many of the - calculations which logically belong in the fragment shader have been moved - into the vertex shader to improve performance. This is why the position - calculation is in a separate shader. Not only does it calculate the - position, but it also calculates some data to be passed to the fragment - shader as a varying. It is optimal to move as much of the calculation as - possible into the vertex shader as this is executed less often. - - The varyings passed to the fragment shaders are interpolated (which is - cheap). Unfortunately, GL will apply perspective correction to the - interpolation calusing errors. To get around this, the vertex shader must - apply perspective correction itself and set the w-value of gl_Position to - zero. That way, GL will be tricked into thinking it doesn't need to apply a - perspective correction and use linear interpolation instead (which is what - we want). Of course, if the brush transform is affeine, no perspective - correction is needed and a simpler vertex shader can be used instead. - - So there are the following "main" vertex shaders: - qglslMainVertexShader - qglslMainWithTexCoordsVertexShader - - And the following position vertex shaders: - qglslPositionOnlyVertexShader - qglslPositionWithTextureBrushVertexShader - qglslPositionWithPatternBrushVertexShader - qglslPositionWithLinearGradientBrushVertexShader - qglslPositionWithRadialGradientBrushVertexShader - qglslPositionWithConicalGradientBrushVertexShader - qglslAffinePositionWithTextureBrushVertexShader - qglslAffinePositionWithPatternBrushVertexShader - qglslAffinePositionWithLinearGradientBrushVertexShader - qglslAffinePositionWithRadialGradientBrushVertexShader - qglslAffinePositionWithConicalGradientBrushVertexShader - - Leading to 23 possible vertex shaders - - - FRAGMENT SHADERS - ================ - - Fragment shaders are also specified as multiple (partial) shaders. The - different fragment shaders represent the different stages in Qt's fragment - pipeline. There are 1-3 stages in this pipeline: First stage is to get the - fragment's colour value. The next stage is to get the fragment's mask value - (coverage value for anti-aliasing) and the final stage is to blend the - incoming fragment with the background (for composition modes not supported - by GL). - - Of these, the first stage will always be present. If Qt doesn't need to - apply anti-aliasing (because it's off or handled by multisampling) then - the coverage value doesn't need to be applied. (Note: There are two types - of mask, one for regular anti-aliasing and one for sub-pixel anti- - aliasing.) If the composition mode is one which GL supports natively then - the blending stage doesn't need to be applied. - - As eash stage can have multiple implementations, they are abstracted as - GLSL function calls with the following signatures: - - Brushes & image drawing are implementations of "qcolorp vec4 srcPixel()": - qglslImageSrcFragShader - qglslImageSrcWithPatternFragShader - qglslNonPremultipliedImageSrcFragShader - qglslSolidBrushSrcFragShader - qglslTextureBrushSrcFragShader - qglslTextureBrushWithPatternFragShader - qglslPatternBrushSrcFragShader - qglslLinearGradientBrushSrcFragShader - qglslRadialGradientBrushSrcFragShader - qglslConicalGradientBrushSrcFragShader - NOTE: It is assumed the colour returned by srcPixel() is pre-multiplied - - Masks are implementations of "qcolorp vec4 applyMask(qcolorp vec4 src)": - qglslMaskFragmentShader - qglslRgbMaskFragmentShaderPass1 - qglslRgbMaskFragmentShaderPass2 - qglslRgbMaskWithGammaFragmentShader - - Composition modes are "qcolorp vec4 compose(qcolorp vec4 src)": - qglslColorBurnCompositionModeFragmentShader - qglslColorDodgeCompositionModeFragmentShader - qglslDarkenCompositionModeFragmentShader - qglslDifferenceCompositionModeFragmentShader - qglslExclusionCompositionModeFragmentShader - qglslHardLightCompositionModeFragmentShader - qglslLightenCompositionModeFragmentShader - qglslMultiplyCompositionModeFragmentShader - qglslOverlayCompositionModeFragmentShader - qglslScreenCompositionModeFragmentShader - qglslSoftLightCompositionModeFragmentShader - - - Note: In the future, some GLSL compilers will support an extension allowing - a new 'color' precision specifier. To support this, qcolorp is used for - all color components so it can be defined to colorp or lowp depending upon - the implementation. - - So there are differnt frament shader main functions, depending on the - number & type of pipelines the fragment needs to go through. - - The choice of which main() fragment shader string to use depends on: - - Use of global opacity - - Brush style (some brushes apply opacity themselves) - - Use & type of mask (TODO: Need to support high quality anti-aliasing & text) - - Use of non-GL Composition mode - - Leading to the following fragment shader main functions: - gl_FragColor = compose(applyMask(srcPixel()*globalOpacity)); - gl_FragColor = compose(applyMask(srcPixel())); - gl_FragColor = applyMask(srcPixel()*globalOpacity); - gl_FragColor = applyMask(srcPixel()); - gl_FragColor = compose(srcPixel()*globalOpacity); - gl_FragColor = compose(srcPixel()); - gl_FragColor = srcPixel()*globalOpacity; - gl_FragColor = srcPixel(); - - Called: - qglslMainFragmentShader_CMO - qglslMainFragmentShader_CM - qglslMainFragmentShader_MO - qglslMainFragmentShader_M - qglslMainFragmentShader_CO - qglslMainFragmentShader_C - qglslMainFragmentShader_O - qglslMainFragmentShader - - Where: - M = Mask - C = Composition - O = Global Opacity - - - CUSTOM SHADER CODE - ================== - - The use of custom shader code is supported by the engine for drawImage and - drawPixmap calls. This is implemented via hooks in the fragment pipeline. - - The custom shader is passed to the engine as a partial fragment shader - (QGLCustomShaderStage). The shader will implement a pre-defined method name - which Qt's fragment pipeline will call: - - lowp vec4 customShader(lowp sampler2d imageTexture, highp vec2 textureCoords) - - The provided src and srcCoords parameters can be used to sample from the - source image. - - Transformations, clipping, opacity, and composition modes set using QPainter - will be respected when using the custom shader hook. -*/ - -#ifndef QGLENGINE_SHADER_MANAGER_H -#define QGLENGINE_SHADER_MANAGER_H - -#include <QGLShader> -#include <QGLShaderProgram> -#include <QPainter> -#include <private/qgl_p.h> -#include <private/qglcustomshaderstage_p.h> - -QT_BEGIN_NAMESPACE - - - -/* -struct QGLEngineCachedShaderProg -{ - QGLEngineCachedShaderProg(QGLEngineShaderManager::ShaderName vertexMain, - QGLEngineShaderManager::ShaderName vertexPosition, - QGLEngineShaderManager::ShaderName fragMain, - QGLEngineShaderManager::ShaderName pixelSrc, - QGLEngineShaderManager::ShaderName mask, - QGLEngineShaderManager::ShaderName composition); - - int cacheKey; - QGLShaderProgram* program; -} -*/ - -static const GLuint QT_VERTEX_COORDS_ATTR = 0; -static const GLuint QT_TEXTURE_COORDS_ATTR = 1; -static const GLuint QT_OPACITY_ATTR = 2; -static const GLuint QT_PMV_MATRIX_1_ATTR = 3; -static const GLuint QT_PMV_MATRIX_2_ATTR = 4; -static const GLuint QT_PMV_MATRIX_3_ATTR = 5; - -class QGLEngineShaderProg; - -class Q_OPENGL_EXPORT QGLEngineSharedShaders -{ - Q_GADGET -public: - - enum SnippetName { - MainVertexShader, - MainWithTexCoordsVertexShader, - MainWithTexCoordsAndOpacityVertexShader, - - // UntransformedPositionVertexShader must be first in the list: - UntransformedPositionVertexShader, - PositionOnlyVertexShader, - ComplexGeometryPositionOnlyVertexShader, - PositionWithPatternBrushVertexShader, - PositionWithLinearGradientBrushVertexShader, - PositionWithConicalGradientBrushVertexShader, - PositionWithRadialGradientBrushVertexShader, - PositionWithTextureBrushVertexShader, - AffinePositionWithPatternBrushVertexShader, - AffinePositionWithLinearGradientBrushVertexShader, - AffinePositionWithConicalGradientBrushVertexShader, - AffinePositionWithRadialGradientBrushVertexShader, - AffinePositionWithTextureBrushVertexShader, - - // MainFragmentShader_CMO must be first in the list: - MainFragmentShader_CMO, - MainFragmentShader_CM, - MainFragmentShader_MO, - MainFragmentShader_M, - MainFragmentShader_CO, - MainFragmentShader_C, - MainFragmentShader_O, - MainFragmentShader, - MainFragmentShader_ImageArrays, - - // ImageSrcFragmentShader must be first in the list:: - ImageSrcFragmentShader, - ImageSrcWithPatternFragmentShader, - NonPremultipliedImageSrcFragmentShader, - CustomImageSrcFragmentShader, - SolidBrushSrcFragmentShader, - TextureBrushSrcFragmentShader, - TextureBrushSrcWithPatternFragmentShader, - PatternBrushSrcFragmentShader, - LinearGradientBrushSrcFragmentShader, - RadialGradientBrushSrcFragmentShader, - ConicalGradientBrushSrcFragmentShader, - ShockingPinkSrcFragmentShader, - - // NoMaskFragmentShader must be first in the list: - NoMaskFragmentShader, - MaskFragmentShader, - RgbMaskFragmentShaderPass1, - RgbMaskFragmentShaderPass2, - RgbMaskWithGammaFragmentShader, - - // NoCompositionModeFragmentShader must be first in the list: - NoCompositionModeFragmentShader, - MultiplyCompositionModeFragmentShader, - ScreenCompositionModeFragmentShader, - OverlayCompositionModeFragmentShader, - DarkenCompositionModeFragmentShader, - LightenCompositionModeFragmentShader, - ColorDodgeCompositionModeFragmentShader, - ColorBurnCompositionModeFragmentShader, - HardLightCompositionModeFragmentShader, - SoftLightCompositionModeFragmentShader, - DifferenceCompositionModeFragmentShader, - ExclusionCompositionModeFragmentShader, - - TotalSnippetCount, InvalidSnippetName - }; -#if defined (QT_DEBUG) - Q_ENUMS(SnippetName) - static QByteArray snippetNameStr(SnippetName snippetName); -#endif - -/* - // These allow the ShaderName enum to be used as a cache key - const int mainVertexOffset = 0; - const int positionVertexOffset = (1<<2) - PositionOnlyVertexShader; - const int mainFragOffset = (1<<6) - MainFragmentShader_CMO; - const int srcPixelOffset = (1<<10) - ImageSrcFragmentShader; - const int maskOffset = (1<<14) - NoMaskShader; - const int compositionOffset = (1 << 16) - MultiplyCompositionModeFragmentShader; -*/ - - QGLEngineSharedShaders(const QGLContext *context); - ~QGLEngineSharedShaders(); - - QGLShaderProgram *simpleProgram() { return simpleShaderProg; } - QGLShaderProgram *blitProgram() { return blitShaderProg; } - // Compile the program if it's not already in the cache, return the item in the cache. - QGLEngineShaderProg *findProgramInCache(const QGLEngineShaderProg &prog); - // Compile the custom shader if it's not already in the cache, return the item in the cache. - - static QGLEngineSharedShaders *shadersForContext(const QGLContext *context); - - // Ideally, this would be static and cleanup all programs in all contexts which - // contain the custom code. Currently it is just a hint and we rely on deleted - // custom shaders being cleaned up by being kicked out of the cache when it's - // full. - void cleanupCustomStage(QGLCustomShaderStage* stage); - -private: - QGLShaderProgram *blitShaderProg; - QGLShaderProgram *simpleShaderProg; - QList<QGLEngineShaderProg*> cachedPrograms; - QList<QGLShader *> shaders; - - static const char* qShaderSnippets[TotalSnippetCount]; -}; - - -class QGLEngineShaderProg -{ -public: - QGLEngineShaderProg() : program(nullptr) {} - - ~QGLEngineShaderProg() { - if (program) - delete program; - } - - QGLEngineSharedShaders::SnippetName mainVertexShader; - QGLEngineSharedShaders::SnippetName positionVertexShader; - QGLEngineSharedShaders::SnippetName mainFragShader; - QGLEngineSharedShaders::SnippetName srcPixelFragShader; - QGLEngineSharedShaders::SnippetName maskFragShader; - QGLEngineSharedShaders::SnippetName compositionFragShader; - - QByteArray customStageSource; //TODO: Decent cache key for custom stages - QGLShaderProgram* program; - - QVector<uint> uniformLocations; - - bool useTextureCoords; - bool useOpacityAttribute; - bool usePmvMatrixAttribute; - - bool operator==(const QGLEngineShaderProg& other) const { - // We don't care about the program - return ( mainVertexShader == other.mainVertexShader && - positionVertexShader == other.positionVertexShader && - mainFragShader == other.mainFragShader && - srcPixelFragShader == other.srcPixelFragShader && - maskFragShader == other.maskFragShader && - compositionFragShader == other.compositionFragShader && - customStageSource == other.customStageSource - ); - } -}; - -class Q_OPENGL_EXPORT QGLEngineShaderManager : public QObject -{ - Q_OBJECT -public: - QGLEngineShaderManager(QGLContext* context); - ~QGLEngineShaderManager(); - - enum MaskType {NoMask, PixelMask, SubPixelMaskPass1, SubPixelMaskPass2, SubPixelWithGammaMask}; - enum PixelSrcType { - ImageSrc = Qt::TexturePattern+1, - NonPremultipliedImageSrc = Qt::TexturePattern+2, - PatternSrc = Qt::TexturePattern+3, - TextureSrcWithPattern = Qt::TexturePattern+4 - }; - - enum Uniform { - ImageTexture, - PatternColor, - GlobalOpacity, - Depth, - MaskTexture, - FragmentColor, - LinearData, - Angle, - HalfViewportSize, - Fmp, - Fmp2MRadius2, - Inverse2Fmp2MRadius2, - SqrFr, - BRadius, - InvertedTextureSize, - BrushTransform, - BrushTexture, - Matrix, - TranslateZ, - NumUniforms - }; - - enum OpacityMode { - NoOpacity, - UniformOpacity, - AttributeOpacity - }; - - // There are optimizations we can do, depending on the brush transform: - // 1) May not have to apply perspective-correction - // 2) Can use lower precision for matrix - void optimiseForBrushTransform(QTransform::TransformationType transformType); - void setSrcPixelType(Qt::BrushStyle); - void setSrcPixelType(PixelSrcType); // For non-brush sources, like pixmaps & images - void setOpacityMode(OpacityMode); - void setMaskType(MaskType); - void setCompositionMode(QPainter::CompositionMode); - void setCustomStage(QGLCustomShaderStage* stage); - void removeCustomStage(); - - GLuint getUniformLocation(Uniform id); - - void setDirty(); // someone has manually changed the current shader program - bool useCorrectShaderProg(); // returns true if the shader program needed to be changed - - void useSimpleProgram(); - void useBlitProgram(); - void setHasComplexGeometry(bool hasComplexGeometry) - { - complexGeometry = hasComplexGeometry; - shaderProgNeedsChanging = true; - } - bool hasComplexGeometry() const - { - return complexGeometry; - } - - QGLShaderProgram* currentProgram(); // Returns pointer to the shader the manager has chosen - QGLShaderProgram* simpleProgram(); // Used to draw into e.g. stencil buffers - QGLShaderProgram* blitProgram(); // Used to blit a texture into the framebuffer - - QGLEngineSharedShaders* sharedShaders; - -private: - QGLContext* ctx; - bool shaderProgNeedsChanging; - bool complexGeometry; - - // Current state variables which influence the choice of shader: - QTransform brushTransform; - int srcPixelType; - OpacityMode opacityMode; - MaskType maskType; - QPainter::CompositionMode compositionMode; - QGLCustomShaderStage* customSrcStage; - - QGLEngineShaderProg* currentShaderProg; -}; - -QT_END_NAMESPACE - -#endif //QGLENGINE_SHADER_MANAGER_H diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h deleted file mode 100644 index a667af9b96..0000000000 --- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h +++ /dev/null @@ -1,523 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - - -#ifndef QGL_ENGINE_SHADER_SOURCE_H -#define QGL_ENGINE_SHADER_SOURCE_H - -#include "qglengineshadermanager_p.h" - -QT_BEGIN_NAMESPACE - - - -static const char* const qglslMainVertexShader = "\n\ - void setPosition(); \n\ - void main(void) \n\ - { \n\ - setPosition(); \n\ - }\n"; - -static const char* const qglslMainWithTexCoordsVertexShader = "\n\ - attribute highp vec2 textureCoordArray; \n\ - varying highp vec2 textureCoords; \n\ - void setPosition(); \n\ - void main(void) \n\ - { \n\ - setPosition(); \n\ - textureCoords = textureCoordArray; \n\ - }\n"; - -static const char* const qglslMainWithTexCoordsAndOpacityVertexShader = "\n\ - attribute highp vec2 textureCoordArray; \n\ - attribute lowp float opacityArray; \n\ - varying highp vec2 textureCoords; \n\ - varying lowp float opacity; \n\ - void setPosition(); \n\ - void main(void) \n\ - { \n\ - setPosition(); \n\ - textureCoords = textureCoordArray; \n\ - opacity = opacityArray; \n\ - }\n"; - -// NOTE: We let GL do the perspective correction so texture lookups in the fragment -// shader are also perspective corrected. -static const char* const qglslPositionOnlyVertexShader = "\n\ - attribute highp vec2 vertexCoordsArray; \n\ - attribute highp vec3 pmvMatrix1; \n\ - attribute highp vec3 pmvMatrix2; \n\ - attribute highp vec3 pmvMatrix3; \n\ - void setPosition(void) \n\ - { \n\ - highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ - vec3 transformedPos = pmvMatrix * vec3(vertexCoordsArray.xy, 1.0); \n\ - gl_Position = vec4(transformedPos.xy, 0.0, transformedPos.z); \n\ - }\n"; - -static const char* const qglslComplexGeometryPositionOnlyVertexShader = "\n\ - uniform highp mat3 matrix; \n\ - uniform highp float translateZ; \n\ - attribute highp vec2 vertexCoordsArray; \n\ - void setPosition(void) \n\ - { \n\ - vec3 v = matrix * vec3(vertexCoordsArray, 1.0); \n\ - vec4 vz = mat4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, translateZ, 1) * vec4(v, 1.0); \n\ - gl_Position = vec4(vz.xyz, 1.0);\n\ - } \n"; - -static const char* const qglslUntransformedPositionVertexShader = "\n\ - attribute highp vec4 vertexCoordsArray; \n\ - void setPosition(void) \n\ - { \n\ - gl_Position = vertexCoordsArray; \n\ - }\n"; - -// Pattern Brush - This assumes the texture size is 8x8 and thus, the inverted size is 0.125 -static const char* const qglslPositionWithPatternBrushVertexShader = "\n\ - attribute highp vec2 vertexCoordsArray; \n\ - attribute highp vec3 pmvMatrix1; \n\ - attribute highp vec3 pmvMatrix2; \n\ - attribute highp vec3 pmvMatrix3; \n\ - uniform mediump vec2 halfViewportSize; \n\ - uniform highp vec2 invertedTextureSize; \n\ - uniform highp mat3 brushTransform; \n\ - varying highp vec2 patternTexCoords; \n\ - void setPosition(void) \n\ - { \n\ - highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ - vec3 transformedPos = pmvMatrix * vec3(vertexCoordsArray.xy, 1.0); \n\ - gl_Position.xy = transformedPos.xy / transformedPos.z; \n\ - mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \n\ - mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1.0); \n\ - mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ - gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ - patternTexCoords.xy = (hTexCoords.xy * 0.125) * invertedHTexCoordsZ; \n\ - }\n"; - -static const char* const qglslAffinePositionWithPatternBrushVertexShader - = qglslPositionWithPatternBrushVertexShader; - -static const char* const qglslPatternBrushSrcFragmentShader = "\n\ - uniform sampler2D brushTexture; \n\ - uniform lowp vec4 patternColor; \n\ - varying highp vec2 patternTexCoords;\n\ - lowp vec4 srcPixel() \n\ - { \n\ - return patternColor * (1.0 - texture2D(brushTexture, patternTexCoords).r); \n\ - }\n"; - - -// Linear Gradient Brush -static const char* const qglslPositionWithLinearGradientBrushVertexShader = "\n\ - attribute highp vec2 vertexCoordsArray; \n\ - attribute highp vec3 pmvMatrix1; \n\ - attribute highp vec3 pmvMatrix2; \n\ - attribute highp vec3 pmvMatrix3; \n\ - uniform mediump vec2 halfViewportSize; \n\ - uniform highp vec3 linearData; \n\ - uniform highp mat3 brushTransform; \n\ - varying mediump float index; \n\ - void setPosition() \n\ - { \n\ - highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ - vec3 transformedPos = pmvMatrix * vec3(vertexCoordsArray.xy, 1.0); \n\ - gl_Position.xy = transformedPos.xy / transformedPos.z; \n\ - mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \n\ - mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \n\ - mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ - gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ - index = (dot(linearData.xy, hTexCoords.xy) * linearData.z) * invertedHTexCoordsZ; \n\ - }\n"; - -static const char* const qglslAffinePositionWithLinearGradientBrushVertexShader - = qglslPositionWithLinearGradientBrushVertexShader; - -static const char* const qglslLinearGradientBrushSrcFragmentShader = "\n\ - uniform sampler2D brushTexture; \n\ - varying mediump float index; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - mediump vec2 val = vec2(index, 0.5); \n\ - return texture2D(brushTexture, val); \n\ - }\n"; - - -// Conical Gradient Brush -static const char* const qglslPositionWithConicalGradientBrushVertexShader = "\n\ - attribute highp vec2 vertexCoordsArray; \n\ - attribute highp vec3 pmvMatrix1; \n\ - attribute highp vec3 pmvMatrix2; \n\ - attribute highp vec3 pmvMatrix3; \n\ - uniform mediump vec2 halfViewportSize; \n\ - uniform highp mat3 brushTransform; \n\ - varying highp vec2 A; \n\ - void setPosition(void) \n\ - { \n\ - highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ - vec3 transformedPos = pmvMatrix * vec3(vertexCoordsArray.xy, 1.0); \n\ - gl_Position.xy = transformedPos.xy / transformedPos.z; \n\ - mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \n\ - mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \n\ - mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ - gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ - A = hTexCoords.xy * invertedHTexCoordsZ; \n\ - }\n"; - -static const char* const qglslAffinePositionWithConicalGradientBrushVertexShader - = qglslPositionWithConicalGradientBrushVertexShader; - -static const char* const qglslConicalGradientBrushSrcFragmentShader = "\n\ - #define INVERSE_2PI 0.1591549430918953358 \n\ - uniform sampler2D brushTexture; \n\ - uniform mediump float angle; \n\ - varying highp vec2 A; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - highp float t; \n\ - if (abs(A.y) == abs(A.x)) \n\ - t = (atan(-A.y + 0.002, A.x) + angle) * INVERSE_2PI; \n\ - else \n\ - t = (atan(-A.y, A.x) + angle) * INVERSE_2PI; \n\ - return texture2D(brushTexture, vec2(t - floor(t), 0.5)); \n\ - }\n"; - - -// Radial Gradient Brush -static const char* const qglslPositionWithRadialGradientBrushVertexShader = "\n\ - attribute highp vec2 vertexCoordsArray;\n\ - attribute highp vec3 pmvMatrix1; \n\ - attribute highp vec3 pmvMatrix2; \n\ - attribute highp vec3 pmvMatrix3; \n\ - uniform mediump vec2 halfViewportSize; \n\ - uniform highp mat3 brushTransform; \n\ - uniform highp vec2 fmp; \n\ - uniform mediump vec3 bradius; \n\ - varying highp float b; \n\ - varying highp vec2 A; \n\ - void setPosition(void) \n\ - {\n\ - highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ - vec3 transformedPos = pmvMatrix * vec3(vertexCoordsArray.xy, 1.0); \n\ - gl_Position.xy = transformedPos.xy / transformedPos.z; \n\ - mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \n\ - mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \n\ - mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ - gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ - A = hTexCoords.xy * invertedHTexCoordsZ; \n\ - b = bradius.x + 2.0 * dot(A, fmp); \n\ - }\n"; - -static const char* const qglslAffinePositionWithRadialGradientBrushVertexShader - = qglslPositionWithRadialGradientBrushVertexShader; - -static const char* const qglslRadialGradientBrushSrcFragmentShader = "\n\ - uniform sampler2D brushTexture; \n\ - uniform highp float fmp2_m_radius2; \n\ - uniform highp float inverse_2_fmp2_m_radius2; \n\ - uniform highp float sqrfr; \n\ - varying highp float b; \n\ - varying highp vec2 A; \n\ - uniform mediump vec3 bradius; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - highp float c = sqrfr-dot(A, A); \n\ - highp float det = b*b - 4.0*fmp2_m_radius2*c; \n\ - lowp vec4 result = vec4(0.0); \n\ - if (det >= 0.0) { \n\ - highp float detSqrt = sqrt(det); \n\ - highp float w = max((-b - detSqrt) * inverse_2_fmp2_m_radius2, (-b + detSqrt) * inverse_2_fmp2_m_radius2); \n\ - if (bradius.y + w * bradius.z >= 0.0) \n\ - result = texture2D(brushTexture, vec2(w, 0.5)); \n\ - } \n\ - return result; \n\ - }\n"; - - -// Texture Brush -static const char* const qglslPositionWithTextureBrushVertexShader = "\n\ - attribute highp vec2 vertexCoordsArray; \n\ - attribute highp vec3 pmvMatrix1; \n\ - attribute highp vec3 pmvMatrix2; \n\ - attribute highp vec3 pmvMatrix3; \n\ - uniform mediump vec2 halfViewportSize; \n\ - uniform highp vec2 invertedTextureSize; \n\ - uniform highp mat3 brushTransform; \n\ - varying highp vec2 brushTextureCoords; \n\ - void setPosition(void) \n\ - { \n\ - highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ - vec3 transformedPos = pmvMatrix * vec3(vertexCoordsArray.xy, 1.0); \n\ - gl_Position.xy = transformedPos.xy / transformedPos.z; \n\ - mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \n\ - mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \n\ - mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ - gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ - brushTextureCoords.xy = (hTexCoords.xy * invertedTextureSize) * gl_Position.w; \n\ - }\n"; - -static const char* const qglslAffinePositionWithTextureBrushVertexShader - = qglslPositionWithTextureBrushVertexShader; - -// OpenGL ES does not support GL_REPEAT wrap modes for NPOT textures. So instead, -// we emulate GL_REPEAT by only taking the fractional part of the texture coords. -// TODO: Special case POT textures which don't need this emulation -static const char* const qglslTextureBrushSrcFragmentShader_ES = "\n\ - varying highp vec2 brushTextureCoords; \n\ - uniform sampler2D brushTexture; \n\ - lowp vec4 srcPixel() { \n\ - return texture2D(brushTexture, fract(brushTextureCoords)); \n\ - }\n"; - -static const char* const qglslTextureBrushSrcFragmentShader_desktop = "\n\ - varying highp vec2 brushTextureCoords; \n\ - uniform sampler2D brushTexture; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - return texture2D(brushTexture, brushTextureCoords); \n\ - }\n"; - -static const char* const qglslTextureBrushSrcWithPatternFragmentShader = "\n\ - varying highp vec2 brushTextureCoords; \n\ - uniform lowp vec4 patternColor; \n\ - uniform sampler2D brushTexture; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - return patternColor * (1.0 - texture2D(brushTexture, brushTextureCoords).r); \n\ - }\n"; - -// Solid Fill Brush -static const char* const qglslSolidBrushSrcFragmentShader = "\n\ - uniform lowp vec4 fragmentColor; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - return fragmentColor; \n\ - }\n"; - -static const char* const qglslImageSrcFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ - uniform sampler2D imageTexture; \n\ - lowp vec4 srcPixel() \n\ - { \n" - "return texture2D(imageTexture, textureCoords); \n" - "}\n"; - -static const char* const qglslCustomSrcFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ - uniform sampler2D imageTexture; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - return customShader(imageTexture, textureCoords); \n\ - }\n"; - -static const char* const qglslImageSrcWithPatternFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ - uniform lowp vec4 patternColor; \n\ - uniform sampler2D imageTexture; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - return patternColor * (1.0 - texture2D(imageTexture, textureCoords).r); \n\ - }\n"; - -static const char* const qglslNonPremultipliedImageSrcFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ - uniform sampler2D imageTexture; \n\ - lowp vec4 srcPixel() \n\ - { \n\ - lowp vec4 sample = texture2D(imageTexture, textureCoords); \n\ - sample.rgb = sample.rgb * sample.a; \n\ - return sample; \n\ - }\n"; - -static const char* const qglslShockingPinkSrcFragmentShader = "\n\ - lowp vec4 srcPixel() \n\ - { \n\ - return vec4(0.98, 0.06, 0.75, 1.0); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_ImageArrays = "\n\ - varying lowp float opacity; \n\ - lowp vec4 srcPixel(); \n\ - void main() \n\ - { \n\ - gl_FragColor = srcPixel() * opacity; \n\ - }\n"; - -static const char* const qglslMainFragmentShader_CMO = "\n\ - uniform lowp float globalOpacity; \n\ - lowp vec4 srcPixel(); \n\ - lowp vec4 applyMask(lowp vec4); \n\ - lowp vec4 compose(lowp vec4); \n\ - void main() \n\ - { \n\ - gl_FragColor = applyMask(compose(srcPixel()*globalOpacity))); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_CM = "\n\ - lowp vec4 srcPixel(); \n\ - lowp vec4 applyMask(lowp vec4); \n\ - lowp vec4 compose(lowp vec4); \n\ - void main() \n\ - { \n\ - gl_FragColor = applyMask(compose(srcPixel())); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_MO = "\n\ - uniform lowp float globalOpacity; \n\ - lowp vec4 srcPixel(); \n\ - lowp vec4 applyMask(lowp vec4); \n\ - void main() \n\ - { \n\ - gl_FragColor = applyMask(srcPixel()*globalOpacity); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_M = "\n\ - lowp vec4 srcPixel(); \n\ - lowp vec4 applyMask(lowp vec4); \n\ - void main() \n\ - { \n\ - gl_FragColor = applyMask(srcPixel()); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_CO = "\n\ - uniform lowp float globalOpacity; \n\ - lowp vec4 srcPixel(); \n\ - lowp vec4 compose(lowp vec4); \n\ - void main() \n\ - { \n\ - gl_FragColor = compose(srcPixel()*globalOpacity); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_C = "\n\ - lowp vec4 srcPixel(); \n\ - lowp vec4 compose(lowp vec4); \n\ - void main() \n\ - { \n\ - gl_FragColor = compose(srcPixel()); \n\ - }\n"; - -static const char* const qglslMainFragmentShader_O = "\n\ - uniform lowp float globalOpacity; \n\ - lowp vec4 srcPixel(); \n\ - void main() \n\ - { \n\ - gl_FragColor = srcPixel()*globalOpacity; \n\ - }\n"; - -static const char* const qglslMainFragmentShader = "\n\ - lowp vec4 srcPixel(); \n\ - void main() \n\ - { \n\ - gl_FragColor = srcPixel(); \n\ - }\n"; - -static const char* const qglslMaskFragmentShader = "\n\ - varying highp vec2 textureCoords;\n\ - uniform sampler2D maskTexture;\n\ - lowp vec4 applyMask(lowp vec4 src) \n\ - {\n\ - lowp vec4 mask = texture2D(maskTexture, textureCoords); \n\ - return src * mask.a; \n\ - }\n"; - -// For source over with subpixel antialiasing, the final color is calculated per component as follows -// (.a is alpha component, .c is red, green or blue component): -// alpha = src.a * mask.c * opacity -// dest.c = dest.c * (1 - alpha) + src.c * alpha -// -// In the first pass, calculate: dest.c = dest.c * (1 - alpha) with blend funcs: zero, 1 - source color -// In the second pass, calculate: dest.c = dest.c + src.c * alpha with blend funcs: one, one -// -// If source is a solid color (src is constant), only the first pass is needed, with blend funcs: constant, 1 - source color - -// For source composition with subpixel antialiasing, the final color is calculated per component as follows: -// alpha = src.a * mask.c * opacity -// dest.c = dest.c * (1 - mask.c) + src.c * alpha -// - -static const char* const qglslRgbMaskFragmentShaderPass1 = "\n\ - varying highp vec2 textureCoords;\n\ - uniform sampler2D maskTexture;\n\ - lowp vec4 applyMask(lowp vec4 src) \n\ - { \n\ - lowp vec4 mask = texture2D(maskTexture, textureCoords); \n\ - return src.a * mask; \n\ - }\n"; - -static const char* const qglslRgbMaskFragmentShaderPass2 = "\n\ - varying highp vec2 textureCoords;\n\ - uniform sampler2D maskTexture;\n\ - lowp vec4 applyMask(lowp vec4 src) \n\ - { \n\ - lowp vec4 mask = texture2D(maskTexture, textureCoords); \n\ - return src * mask; \n\ - }\n"; - -/* - Left to implement: - RgbMaskFragmentShader, - RgbMaskWithGammaFragmentShader, - - MultiplyCompositionModeFragmentShader, - ScreenCompositionModeFragmentShader, - OverlayCompositionModeFragmentShader, - DarkenCompositionModeFragmentShader, - LightenCompositionModeFragmentShader, - ColorDodgeCompositionModeFragmentShader, - ColorBurnCompositionModeFragmentShader, - HardLightCompositionModeFragmentShader, - SoftLightCompositionModeFragmentShader, - DifferenceCompositionModeFragmentShader, - ExclusionCompositionModeFragmentShader, -*/ - -QT_END_NAMESPACE - -#endif // GLGC_SHADER_SOURCE_H diff --git a/src/opengl/gl2paintengineex/qglgradientcache.cpp b/src/opengl/gl2paintengineex/qglgradientcache.cpp deleted file mode 100644 index fc5e236ca6..0000000000 --- a/src/opengl/gl2paintengineex/qglgradientcache.cpp +++ /dev/null @@ -1,225 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qglgradientcache_p.h" -#include <private/qdrawhelper_p.h> -#include <private/qgl_p.h> -#include <QtCore/qmutex.h> -#include <QtCore/qrandom.h> - -QT_BEGIN_NAMESPACE - -class QGL2GradientCacheWrapper -{ -public: - QGL2GradientCache *cacheForContext(const QGLContext *context) { - QMutexLocker lock(&m_mutex); - return m_resource.value<QGL2GradientCache>(context->contextHandle()); - } - -private: - QOpenGLMultiGroupSharedResource m_resource; - QMutex m_mutex; -}; - -Q_GLOBAL_STATIC(QGL2GradientCacheWrapper, qt_gradient_caches) - -QGL2GradientCache::QGL2GradientCache(QOpenGLContext *ctx) - : QOpenGLSharedResource(ctx->shareGroup()) -{ -} - -QGL2GradientCache::~QGL2GradientCache() -{ - cache.clear(); -} - -QGL2GradientCache *QGL2GradientCache::cacheForContext(const QGLContext *context) -{ - return qt_gradient_caches()->cacheForContext(context); -} - -void QGL2GradientCache::invalidateResource() -{ - QMutexLocker lock(&m_mutex); - cache.clear(); -} - -void QGL2GradientCache::freeResource(QOpenGLContext *) -{ - cleanCache(); -} - -void QGL2GradientCache::cleanCache() -{ - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - QMutexLocker lock(&m_mutex); - QGLGradientColorTableHash::const_iterator it = cache.constBegin(); - for (; it != cache.constEnd(); ++it) { - const CacheInfo &cache_info = it.value(); - funcs->glDeleteTextures(1, &cache_info.texId); - } - cache.clear(); -} - -GLuint QGL2GradientCache::getBuffer(const QGradient &gradient, qreal opacity) -{ - QMutexLocker lock(&m_mutex); - quint64 hash_val = 0; - - const QGradientStops stops = gradient.stops(); - for (int i = 0; i < stops.size() && i <= 2; i++) - hash_val += stops[i].second.rgba(); - - QGLGradientColorTableHash::const_iterator it = cache.constFind(hash_val); - - if (it == cache.constEnd()) - return addCacheElement(hash_val, gradient, opacity); - else { - do { - const CacheInfo &cache_info = it.value(); - if (cache_info.stops == stops && cache_info.opacity == opacity - && cache_info.interpolationMode == gradient.interpolationMode()) - { - return cache_info.texId; - } - ++it; - } while (it != cache.constEnd() && it.key() == hash_val); - // an exact match for these stops and opacity was not found, create new cache - return addCacheElement(hash_val, gradient, opacity); - } -} - - -GLuint QGL2GradientCache::addCacheElement(quint64 hash_val, const QGradient &gradient, qreal opacity) -{ - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - if (cache.size() == maxCacheSize()) { - int elem_to_remove = QRandomGenerator::global()->bounded(maxCacheSize()); - quint64 key = cache.keys()[elem_to_remove]; - - // need to call glDeleteTextures on each removed cache entry: - QGLGradientColorTableHash::const_iterator it = cache.constFind(key); - do { - funcs->glDeleteTextures(1, &it.value().texId); - } while (++it != cache.constEnd() && it.key() == key); - cache.remove(key); // may remove more than 1, but OK - } - - CacheInfo cache_entry(gradient.stops(), opacity, gradient.interpolationMode()); - uint buffer[1024]; - generateGradientColorTable(gradient, buffer, paletteSize(), opacity); - funcs->glGenTextures(1, &cache_entry.texId); - funcs->glBindTexture(GL_TEXTURE_2D, cache_entry.texId); - funcs->glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, paletteSize(), 1, - 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer); - return cache.insert(hash_val, cache_entry).value().texId; -} - - -// GL's expects pixels in RGBA (when using GL_RGBA), bin-endian (ABGR on x86). -// Qt always stores in ARGB reguardless of the byte-order the mancine uses. -static inline uint qtToGlColor(uint c) -{ - uint o; -#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN - o = (c & 0xff00ff00) // alpha & green already in the right place - | ((c >> 16) & 0x000000ff) // red - | ((c << 16) & 0x00ff0000); // blue -#else //Q_BIG_ENDIAN - o = (c << 8) - | ((c >> 24) & 0x000000ff); -#endif // Q_BYTE_ORDER - return o; -} - -//TODO: Let GL generate the texture using an FBO -void QGL2GradientCache::generateGradientColorTable(const QGradient& gradient, uint *colorTable, int size, qreal opacity) const -{ - int pos = 0; - const QGradientStops s = gradient.stops(); - bool colorInterpolation = (gradient.interpolationMode() == QGradient::ColorInterpolation); - - uint alpha = qRound(opacity * 256); - // Qt LIES! It returns ARGB (on little-endian AND on big-endian) - uint current_color = ARGB_COMBINE_ALPHA(s[0].second.rgba(), alpha); - qreal incr = 1.0 / qreal(size); - qreal fpos = 1.5 * incr; - colorTable[pos++] = qtToGlColor(qPremultiply(current_color)); - - while (fpos <= s.first().first) { - colorTable[pos] = colorTable[pos - 1]; - pos++; - fpos += incr; - } - - if (colorInterpolation) - current_color = qPremultiply(current_color); - - const int sLast = s.size() - 1; - for (int i = 0; i < sLast; ++i) { - qreal delta = 1/(s[i+1].first - s[i].first); - uint next_color = ARGB_COMBINE_ALPHA(s[i + 1].second.rgba(), alpha); - if (colorInterpolation) - next_color = qPremultiply(next_color); - - while (fpos < s[i+1].first && pos < size) { - int dist = int(256 * ((fpos - s[i].first) * delta)); - int idist = 256 - dist; - if (colorInterpolation) - colorTable[pos] = qtToGlColor(INTERPOLATE_PIXEL_256(current_color, idist, next_color, dist)); - else - colorTable[pos] = qtToGlColor(qPremultiply(INTERPOLATE_PIXEL_256(current_color, idist, next_color, dist))); - ++pos; - fpos += incr; - } - current_color = next_color; - } - - Q_ASSERT(s.size() > 0); - - uint last_color = qtToGlColor(qPremultiply(ARGB_COMBINE_ALPHA(s[sLast].second.rgba(), alpha))); - for (;pos < size; ++pos) - colorTable[pos] = last_color; - - // Make sure the last color stop is represented at the end of the table - colorTable[size-1] = last_color; -} - -QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qglgradientcache_p.h b/src/opengl/gl2paintengineex/qglgradientcache_p.h deleted file mode 100644 index 3c9da982e9..0000000000 --- a/src/opengl/gl2paintengineex/qglgradientcache_p.h +++ /dev/null @@ -1,103 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QGLGRADIENTCACHE_P_H -#define QGLGRADIENTCACHE_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QMultiHash> -#include <QObject> -#include <QtOpenGL/QtOpenGL> -#include <private/qgl_p.h> -#include <QtCore/qmutex.h> - -QT_BEGIN_NAMESPACE - -class QGL2GradientCache : public QOpenGLSharedResource -{ - struct CacheInfo - { - inline CacheInfo(QGradientStops s, qreal op, QGradient::InterpolationMode mode) : - stops(s), opacity(op), interpolationMode(mode) {} - - GLuint texId; - QGradientStops stops; - qreal opacity; - QGradient::InterpolationMode interpolationMode; - }; - - typedef QMultiHash<quint64, CacheInfo> QGLGradientColorTableHash; - -public: - static QGL2GradientCache *cacheForContext(const QGLContext *context); - - QGL2GradientCache(QOpenGLContext *); - ~QGL2GradientCache(); - - GLuint getBuffer(const QGradient &gradient, qreal opacity); - inline int paletteSize() const { return 1024; } - - void invalidateResource() override; - void freeResource(QOpenGLContext *ctx) override; - -private: - inline int maxCacheSize() const { return 60; } - inline void generateGradientColorTable(const QGradient& gradient, - uint *colorTable, - int size, qreal opacity) const; - GLuint addCacheElement(quint64 hash_val, const QGradient &gradient, qreal opacity); - void cleanCache(); - - QGLGradientColorTableHash cache; - QMutex m_mutex; -}; - -QT_END_NAMESPACE - -#endif // QGLGRADIENTCACHE_P_H diff --git a/src/opengl/gl2paintengineex/qglshadercache_p.h b/src/opengl/gl2paintengineex/qglshadercache_p.h deleted file mode 100644 index 4204e3e256..0000000000 --- a/src/opengl/gl2paintengineex/qglshadercache_p.h +++ /dev/null @@ -1,86 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#ifndef QGLSHADERCACHE_P_H -#define QGLSHADERCACHE_P_H - -#include <QtCore/qglobal.h> - -QT_BEGIN_NAMESPACE - - -class QGLShaderProgram; -class QGLContext; - -class CachedShader -{ -public: - inline CachedShader(const QByteArray &, const QByteArray &) - {} - - inline bool isCached() - { - return false; - } - - inline bool load(QGLShaderProgram *, const QGLContext *) - { - return false; - } - - inline bool store(QGLShaderProgram *, const QGLContext *) - { - return false; - } -}; - -QT_END_NAMESPACE - -#endif diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp deleted file mode 100644 index 2546f6dc13..0000000000 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ /dev/null @@ -1,2515 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -/* - When the active program changes, we need to update it's uniforms. - We could track state for each program and only update stale uniforms - - Could lead to lots of overhead if there's a lot of programs - We could update all the uniforms when the program changes - - Could end up updating lots of uniforms which don't need updating - - Updating uniforms should be cheap, so the overhead of updating up-to-date - uniforms should be minimal. It's also less complex. - - Things which _may_ cause a different program to be used: - - Change in brush/pen style - - Change in painter opacity - - Change in composition mode - - Whenever we set a mode on the shader manager - it needs to tell us if it had - to switch to a different program. - - The shader manager should only switch when we tell it to. E.g. if we set a new - brush style and then switch to transparent painter, we only want it to compile - and use the correct program when we really need it. -*/ - -// #define QT_OPENGL_CACHE_AS_VBOS - -#include "qglgradientcache_p.h" -#include "qpaintengineex_opengl2_p.h" - -#include <string.h> //for memcpy -#include <qmath.h> - -#include <private/qgl_p.h> -#include <private/qpaintengineex_p.h> -#include <QPaintEngine> -#include <private/qpainter_p.h> -#include <private/qfontengine_p.h> -#include <private/qdatabuffer_p.h> -#include <private/qstatictext_p.h> -#include <QtGui/private/qtriangulator_p.h> - -#include "qglengineshadermanager_p.h" -#include "qgl2pexvertexarray_p.h" -#include "qtextureglyphcache_gl_p.h" - -#include <QDebug> - -#ifndef QT_OPENGL_ES_2 -# include <qopenglfunctions_1_1.h> -#endif - -QT_BEGIN_NAMESPACE - - - -Q_GUI_EXPORT QImage qt_imageForBrush(int brushStyle, bool invert); - -////////////////////////////////// Private Methods ////////////////////////////////////////// - -QGL2PaintEngineExPrivate::~QGL2PaintEngineExPrivate() -{ - delete shaderManager; - - while (pathCaches.size()) { - QVectorPath::CacheEntry *e = *(pathCaches.constBegin()); - e->cleanup(e->engine, e->data); - e->data = 0; - e->engine = 0; - } - - if (elementIndicesVBOId != 0) { - glDeleteBuffers(1, &elementIndicesVBOId); - elementIndicesVBOId = 0; - } -} - -void QGL2PaintEngineExPrivate::updateTextureFilter(GLenum target, GLenum wrapMode, bool smoothPixmapTransform, GLuint id) -{ -// glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT); //### Is it always this texture unit? - if (id != GLuint(-1) && id == lastTextureUsed) - return; - - lastTextureUsed = id; - - if (smoothPixmapTransform) { - glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - } else { - glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - } - glTexParameteri(target, GL_TEXTURE_WRAP_S, wrapMode); - glTexParameteri(target, GL_TEXTURE_WRAP_T, wrapMode); -} - - -inline QColor qt_premultiplyColor(QColor c, GLfloat opacity) -{ - qreal alpha = c.alphaF() * opacity; - c.setAlphaF(alpha); - c.setRedF(c.redF() * alpha); - c.setGreenF(c.greenF() * alpha); - c.setBlueF(c.blueF() * alpha); - return c; -} - - -void QGL2PaintEngineExPrivate::setBrush(const QBrush& brush) -{ - if (qbrush_fast_equals(currentBrush, brush)) - return; - - const Qt::BrushStyle newStyle = qbrush_style(brush); - Q_ASSERT(newStyle != Qt::NoBrush); - - currentBrush = brush; - if (!currentBrushPixmap.isNull()) - currentBrushPixmap = QPixmap(); - brushUniformsDirty = true; // All brushes have at least one uniform - - if (newStyle > Qt::SolidPattern) - brushTextureDirty = true; - - if (currentBrush.style() == Qt::TexturePattern - && qHasPixmapTexture(brush) && brush.texture().isQBitmap()) - { - shaderManager->setSrcPixelType(QGLEngineShaderManager::TextureSrcWithPattern); - } else { - shaderManager->setSrcPixelType(newStyle); - } - shaderManager->optimiseForBrushTransform(currentBrush.transform().type()); -} - - -void QGL2PaintEngineExPrivate::useSimpleShader() -{ - shaderManager->useSimpleProgram(); - - if (matrixDirty) - updateMatrix(); -} - -// ####TODO Properly #ifdef this class to use #define symbols actually defined -// by OpenGL/ES includes -#ifndef GL_MIRRORED_REPEAT_IBM -#define GL_MIRRORED_REPEAT_IBM 0x8370 -#endif - -void QGL2PaintEngineExPrivate::updateBrushTexture() -{ - Q_Q(QGL2PaintEngineEx); -// qDebug("QGL2PaintEngineExPrivate::updateBrushTexture()"); - Qt::BrushStyle style = currentBrush.style(); - - if ( (style >= Qt::Dense1Pattern) && (style <= Qt::DiagCrossPattern) ) { - // Get the image data for the pattern - QImage texImage = qt_imageForBrush(style, false); - - glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT); - ctx->d_func()->bindTexture(texImage, GL_TEXTURE_2D, GL_RGBA, QGLContext::InternalBindOption); - updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, q->state()->renderHints & QPainter::SmoothPixmapTransform); - } - else if (style >= Qt::LinearGradientPattern && style <= Qt::ConicalGradientPattern) { - // Gradiant brush: All the gradiants use the same texture - - const QGradient* g = currentBrush.gradient(); - - // We apply global opacity in the fragment shaders, so we always pass 1.0 - // for opacity to the cache. - GLuint texId = QGL2GradientCache::cacheForContext(ctx)->getBuffer(*g, 1.0); - - glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT); - glBindTexture(GL_TEXTURE_2D, texId); - - if (g->spread() == QGradient::RepeatSpread || g->type() == QGradient::ConicalGradient) - updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, q->state()->renderHints & QPainter::SmoothPixmapTransform); - else if (g->spread() == QGradient::ReflectSpread) - updateTextureFilter(GL_TEXTURE_2D, GL_MIRRORED_REPEAT_IBM, q->state()->renderHints & QPainter::SmoothPixmapTransform); - else - updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, q->state()->renderHints & QPainter::SmoothPixmapTransform); - } - else if (style == Qt::TexturePattern) { - currentBrushPixmap = currentBrush.texture(); - - int max_texture_size = ctx->d_func()->maxTextureSize(); - if (currentBrushPixmap.width() > max_texture_size || currentBrushPixmap.height() > max_texture_size) - currentBrushPixmap = currentBrushPixmap.scaled(max_texture_size, max_texture_size, Qt::KeepAspectRatio); - - GLuint wrapMode = GL_REPEAT; - if (ctx->contextHandle()->isOpenGLES()) { - // OpenGL ES does not support GL_REPEAT wrap modes for NPOT textures. So instead, - // we emulate GL_REPEAT by only taking the fractional part of the texture coords - // in the qopenglslTextureBrushSrcFragmentShader program. - wrapMode = GL_CLAMP_TO_EDGE; - } - - glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT); - QGLTexture *tex = ctx->d_func()->bindTexture(currentBrushPixmap, GL_TEXTURE_2D, GL_RGBA, - QGLContext::InternalBindOption | - QGLContext::CanFlipNativePixmapBindOption); - updateTextureFilter(GL_TEXTURE_2D, wrapMode, q->state()->renderHints & QPainter::SmoothPixmapTransform); - textureInvertedY = tex->options & QGLContext::InvertedYBindOption ? -1 : 1; - } - brushTextureDirty = false; -} - - -void QGL2PaintEngineExPrivate::updateBrushUniforms() -{ -// qDebug("QGL2PaintEngineExPrivate::updateBrushUniforms()"); - Qt::BrushStyle style = currentBrush.style(); - - if (style == Qt::NoBrush) - return; - - QTransform brushQTransform = currentBrush.transform(); - - if (style == Qt::SolidPattern) { - QColor col = qt_premultiplyColor(currentBrush.color(), (GLfloat)q->state()->opacity); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::FragmentColor), col); - } - else { - // All other brushes have a transform and thus need the translation point: - QPointF translationPoint; - - if (style <= Qt::DiagCrossPattern) { - QColor col = qt_premultiplyColor(currentBrush.color(), (GLfloat)q->state()->opacity); - - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::PatternColor), col); - - QVector2D halfViewportSize(width*0.5, height*0.5); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::HalfViewportSize), halfViewportSize); - } - else if (style == Qt::LinearGradientPattern) { - const QLinearGradient *g = static_cast<const QLinearGradient *>(currentBrush.gradient()); - - QPointF realStart = g->start(); - QPointF realFinal = g->finalStop(); - translationPoint = realStart; - - QPointF l = realFinal - realStart; - - QVector3D linearData( - l.x(), - l.y(), - 1.0f / (l.x() * l.x() + l.y() * l.y()) - ); - - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::LinearData), linearData); - - QVector2D halfViewportSize(width*0.5, height*0.5); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::HalfViewportSize), halfViewportSize); - } - else if (style == Qt::ConicalGradientPattern) { - const QConicalGradient *g = static_cast<const QConicalGradient *>(currentBrush.gradient()); - translationPoint = g->center(); - - GLfloat angle = -qDegreesToRadians(g->angle()); - - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Angle), angle); - - QVector2D halfViewportSize(width*0.5, height*0.5); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::HalfViewportSize), halfViewportSize); - } - else if (style == Qt::RadialGradientPattern) { - const QRadialGradient *g = static_cast<const QRadialGradient *>(currentBrush.gradient()); - QPointF realCenter = g->center(); - QPointF realFocal = g->focalPoint(); - qreal realRadius = g->centerRadius() - g->focalRadius(); - translationPoint = realFocal; - - QPointF fmp = realCenter - realFocal; - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Fmp), fmp); - - GLfloat fmp2_m_radius2 = -fmp.x() * fmp.x() - fmp.y() * fmp.y() + realRadius*realRadius; - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Fmp2MRadius2), fmp2_m_radius2); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Inverse2Fmp2MRadius2), - GLfloat(1.0 / (2.0*fmp2_m_radius2))); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::SqrFr), - GLfloat(g->focalRadius() * g->focalRadius())); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::BRadius), - GLfloat(2 * (g->centerRadius() - g->focalRadius()) * g->focalRadius()), - g->focalRadius(), - g->centerRadius() - g->focalRadius()); - - QVector2D halfViewportSize(width*0.5, height*0.5); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::HalfViewportSize), halfViewportSize); - } - else if (style == Qt::TexturePattern) { - const QPixmap& texPixmap = currentBrush.texture(); - - if (qHasPixmapTexture(currentBrush) && currentBrush.texture().isQBitmap()) { - QColor col = qt_premultiplyColor(currentBrush.color(), (GLfloat)q->state()->opacity); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::PatternColor), col); - } - - QSizeF invertedTextureSize(1.0 / texPixmap.width(), 1.0 / texPixmap.height()); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::InvertedTextureSize), invertedTextureSize); - - QVector2D halfViewportSize(width*0.5, height*0.5); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::HalfViewportSize), halfViewportSize); - } - else - qWarning("QGL2PaintEngineEx: Unimplemented fill style"); - - const QPointF &brushOrigin = q->state()->brushOrigin; - QTransform matrix = q->state()->matrix; - matrix.translate(brushOrigin.x(), brushOrigin.y()); - - QTransform translate(1, 0, 0, 1, -translationPoint.x(), -translationPoint.y()); - qreal m22 = -1; - qreal dy = height; - if (device->isFlipped()) { - m22 = 1; - dy = 0; - } - QTransform gl_to_qt(1, 0, 0, m22, 0, dy); - QTransform inv_matrix; - if (style == Qt::TexturePattern && textureInvertedY == -1) - inv_matrix = gl_to_qt * (QTransform(1, 0, 0, -1, 0, currentBrush.texture().height()) * brushQTransform * matrix).inverted() * translate; - else - inv_matrix = gl_to_qt * (brushQTransform * matrix).inverted() * translate; - - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::BrushTransform), inv_matrix); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::BrushTexture), QT_BRUSH_TEXTURE_UNIT); - } - brushUniformsDirty = false; -} - - -// This assumes the shader manager has already setup the correct shader program -void QGL2PaintEngineExPrivate::updateMatrix() -{ -// qDebug("QGL2PaintEngineExPrivate::updateMatrix()"); - - const QTransform& transform = q->state()->matrix; - - // The projection matrix converts from Qt's coordinate system to GL's coordinate system - // * GL's viewport is 2x2, Qt's is width x height - // * GL has +y -> -y going from bottom -> top, Qt is the other way round - // * GL has [0,0] in the center, Qt has it in the top-left - // - // This results in the Projection matrix below, which is multiplied by the painter's - // transformation matrix, as shown below: - // - // Projection Matrix Painter Transform - // ------------------------------------------------ ------------------------ - // | 2.0 / width | 0.0 | -1.0 | | m11 | m21 | dx | - // | 0.0 | -2.0 / height | 1.0 | * | m12 | m22 | dy | - // | 0.0 | 0.0 | 1.0 | | m13 | m23 | m33 | - // ------------------------------------------------ ------------------------ - // - // NOTE: The resultant matrix is also transposed, as GL expects column-major matracies - - const GLfloat wfactor = 2.0f / width; - GLfloat hfactor = -2.0f / height; - - GLfloat dx = transform.dx(); - GLfloat dy = transform.dy(); - - if (device->isFlipped()) { - hfactor *= -1; - dy -= height; - } - - // Non-integer translates can have strange effects for some rendering operations such as - // anti-aliased text rendering. In such cases, we snap the translate to the pixel grid. - if (snapToPixelGrid && transform.type() == QTransform::TxTranslate) { - // 0.50 needs to rounded down to 0.0 for consistency with raster engine: - dx = std::ceil(dx - 0.5f); - dy = std::ceil(dy - 0.5f); - } - pmvMatrix[0][0] = (wfactor * transform.m11()) - transform.m13(); - pmvMatrix[1][0] = (wfactor * transform.m21()) - transform.m23(); - pmvMatrix[2][0] = (wfactor * dx) - transform.m33(); - pmvMatrix[0][1] = (hfactor * transform.m12()) + transform.m13(); - pmvMatrix[1][1] = (hfactor * transform.m22()) + transform.m23(); - pmvMatrix[2][1] = (hfactor * dy) + transform.m33(); - pmvMatrix[0][2] = transform.m13(); - pmvMatrix[1][2] = transform.m23(); - pmvMatrix[2][2] = transform.m33(); - - // 1/10000 == 0.0001, so we have good enough res to cover curves - // that span the entire widget... - inverseScale = qMax(1 / qMax( qMax(qAbs(transform.m11()), qAbs(transform.m22())), - qMax(qAbs(transform.m12()), qAbs(transform.m21())) ), - qreal(0.0001)); - - matrixDirty = false; - matrixUniformDirty = true; - - // Set the PMV matrix attribute. As we use an attributes rather than uniforms, we only - // need to do this once for every matrix change and persists across all shader programs. - glVertexAttrib3fv(QT_PMV_MATRIX_1_ATTR, pmvMatrix[0]); - glVertexAttrib3fv(QT_PMV_MATRIX_2_ATTR, pmvMatrix[1]); - glVertexAttrib3fv(QT_PMV_MATRIX_3_ATTR, pmvMatrix[2]); - - dasher.setInvScale(inverseScale); - stroker.setInvScale(inverseScale); -} - - -void QGL2PaintEngineExPrivate::updateCompositionMode() -{ - // NOTE: The entire paint engine works on pre-multiplied data - which is why some of these - // composition modes look odd. -// qDebug() << "QGL2PaintEngineExPrivate::updateCompositionMode() - Setting GL composition mode for " << q->state()->composition_mode; - switch(q->state()->composition_mode) { - case QPainter::CompositionMode_SourceOver: - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - break; - case QPainter::CompositionMode_DestinationOver: - glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_ONE); - break; - case QPainter::CompositionMode_Clear: - glBlendFunc(GL_ZERO, GL_ZERO); - break; - case QPainter::CompositionMode_Source: - glBlendFunc(GL_ONE, GL_ZERO); - break; - case QPainter::CompositionMode_Destination: - glBlendFunc(GL_ZERO, GL_ONE); - break; - case QPainter::CompositionMode_SourceIn: - glBlendFunc(GL_DST_ALPHA, GL_ZERO); - break; - case QPainter::CompositionMode_DestinationIn: - glBlendFunc(GL_ZERO, GL_SRC_ALPHA); - break; - case QPainter::CompositionMode_SourceOut: - glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_ZERO); - break; - case QPainter::CompositionMode_DestinationOut: - glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_ALPHA); - break; - case QPainter::CompositionMode_SourceAtop: - glBlendFunc(GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - break; - case QPainter::CompositionMode_DestinationAtop: - glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA); - break; - case QPainter::CompositionMode_Xor: - glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - break; - case QPainter::CompositionMode_Plus: - glBlendFunc(GL_ONE, GL_ONE); - break; - default: - qWarning("Unsupported composition mode"); - break; - } - - compositionModeDirty = false; -} - -static inline void setCoords(GLfloat *coords, const QGLRect &rect) -{ - coords[0] = rect.left; - coords[1] = rect.top; - coords[2] = rect.right; - coords[3] = rect.top; - coords[4] = rect.right; - coords[5] = rect.bottom; - coords[6] = rect.left; - coords[7] = rect.bottom; -} - -void QGL2PaintEngineExPrivate::drawTexture(const QGLRect& dest, const QGLRect& src, const QSize &textureSize, bool opaque, bool pattern) -{ - // Setup for texture drawing - currentBrush = noBrush; - shaderManager->setSrcPixelType(pattern ? QGLEngineShaderManager::PatternSrc : QGLEngineShaderManager::ImageSrc); - - if (snapToPixelGrid) { - snapToPixelGrid = false; - matrixDirty = true; - } - - if (prepareForDraw(opaque)) - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::ImageTexture), QT_IMAGE_TEXTURE_UNIT); - - if (pattern) { - QColor col = qt_premultiplyColor(q->state()->pen.color(), (GLfloat)q->state()->opacity); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::PatternColor), col); - } - - GLfloat dx = 1.0 / textureSize.width(); - GLfloat dy = 1.0 / textureSize.height(); - - QGLRect srcTextureRect(src.left*dx, src.top*dy, src.right*dx, src.bottom*dy); - - setCoords(staticVertexCoordinateArray, dest); - setCoords(staticTextureCoordinateArray, srcTextureRect); - - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); -} - -void QGL2PaintEngineEx::beginNativePainting() -{ - Q_D(QGL2PaintEngineEx); - ensureActive(); - d->transferMode(BrushDrawingMode); - - d->nativePaintingActive = true; - - d->glUseProgram(0); - - // Disable all the vertex attribute arrays: - for (int i = 0; i < QT_GL_VERTEX_ARRAY_TRACKED_COUNT; ++i) - d->glDisableVertexAttribArray(i); - -#ifndef QT_OPENGL_ES_2 - if (!d->ctx->contextHandle()->isOpenGLES()) { - const QGLContext *ctx = d->ctx; - const QGLFormat &fmt = d->device->format(); - if (fmt.majorVersion() < 3 || (fmt.majorVersion() == 3 && fmt.minorVersion() < 1) - || (fmt.majorVersion() == 3 && fmt.minorVersion() == 1 && ctx->contextHandle()->hasExtension(QByteArrayLiteral("GL_ARB_compatibility"))) - || fmt.profile() == QGLFormat::CompatibilityProfile) - { - // be nice to people who mix OpenGL 1.x code with QPainter commands - // by setting modelview and projection matrices to mirror the GL 1 - // paint engine - const QTransform& mtx = state()->matrix; - - float mv_matrix[4][4] = - { - { float(mtx.m11()), float(mtx.m12()), 0, float(mtx.m13()) }, - { float(mtx.m21()), float(mtx.m22()), 0, float(mtx.m23()) }, - { 0, 0, 1, 0 }, - { float(mtx.dx()), float(mtx.dy()), 0, float(mtx.m33()) } - }; - - const QSize sz = d->device->size(); - - QOpenGLFunctions_1_1 *gl1funcs = QOpenGLContext::currentContext()->versionFunctions<QOpenGLFunctions_1_1>(); - gl1funcs->initializeOpenGLFunctions(); - - gl1funcs->glMatrixMode(GL_PROJECTION); - gl1funcs->glLoadIdentity(); - gl1funcs->glOrtho(0, sz.width(), sz.height(), 0, -999999, 999999); - - gl1funcs->glMatrixMode(GL_MODELVIEW); - gl1funcs->glLoadMatrixf(&mv_matrix[0][0]); - } - } -#endif - - d->lastTextureUsed = GLuint(-1); - d->dirtyStencilRegion = QRect(0, 0, d->width, d->height); - d->resetGLState(); - - d->shaderManager->setDirty(); - - d->needsSync = true; -} - -void QGL2PaintEngineExPrivate::resetGLState() -{ - glDisable(GL_BLEND); - glActiveTexture(GL_TEXTURE0); - glDisable(GL_STENCIL_TEST); - glDisable(GL_DEPTH_TEST); - glDisable(GL_SCISSOR_TEST); - glDepthMask(true); - glDepthFunc(GL_LESS); - glClearDepthf(1); - glStencilMask(0xff); - glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP); - glStencilFunc(GL_ALWAYS, 0, 0xff); - ctx->d_func()->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, false); - ctx->d_func()->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, false); - ctx->d_func()->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false); -#ifndef QT_OPENGL_ES_2 - if (!ctx->contextHandle()->isOpenGLES()) { - // gl_Color, corresponding to vertex attribute 3, may have been changed - float color[] = { 1.0f, 1.0f, 1.0f, 1.0f }; - glVertexAttrib4fv(3, color); - } -#endif -} - -bool QGL2PaintEngineExPrivate::resetOpenGLContextActiveEngine() -{ - QOpenGLContext *guiGlContext = ctx->contextHandle(); - QOpenGLContextPrivate *guiGlContextPrivate = - guiGlContext ? QOpenGLContextPrivate::get(guiGlContext) : 0; - - if (guiGlContextPrivate && guiGlContextPrivate->active_engine) { - ctx->d_func()->refreshCurrentFbo(); - guiGlContextPrivate->active_engine = 0; - return true; - } - - return false; -} - -void QGL2PaintEngineEx::endNativePainting() -{ - Q_D(QGL2PaintEngineEx); - d->needsSync = true; - d->nativePaintingActive = false; -} - -void QGL2PaintEngineEx::invalidateState() -{ - Q_D(QGL2PaintEngineEx); - d->needsSync = true; -} - -bool QGL2PaintEngineEx::isNativePaintingActive() const { - Q_D(const QGL2PaintEngineEx); - return d->nativePaintingActive; -} - -bool QGL2PaintEngineEx::shouldDrawCachedGlyphs(QFontEngine *fontEngine, const QTransform &t) const -{ - // The paint engine does not support projected cached glyph drawing - if (t.type() == QTransform::TxProject) - return false; - - // The font engine might not support filling the glyph cache - // with the given transform applied, in which case we need to - // fall back to the QPainterPath code-path. - if (!fontEngine->supportsTransformation(t)) { - // Except that drawing paths is slow, so for scales between - // 0.5 and 2.0 we leave the glyph cache untransformed and deal - // with the transform ourselves when painting, resulting in - // drawing 1x cached glyphs with a smooth-scale. - float det = t.determinant(); - if (det >= 0.25f && det <= 4.f) { - // Assuming the baseclass still agrees - return QPaintEngineEx::shouldDrawCachedGlyphs(fontEngine, t); - } - - return false; // Fall back to path-drawing - } - - return QPaintEngineEx::shouldDrawCachedGlyphs(fontEngine, t); -} - -void QGL2PaintEngineExPrivate::transferMode(EngineMode newMode) -{ - if (newMode == mode) - return; - - if (mode == TextDrawingMode || mode == ImageDrawingMode || mode == ImageArrayDrawingMode) { - lastTextureUsed = GLuint(-1); - } - - if (newMode == TextDrawingMode) { - shaderManager->setHasComplexGeometry(true); - } else { - shaderManager->setHasComplexGeometry(false); - } - - if (newMode == ImageDrawingMode) { - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, staticVertexCoordinateArray); - setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, staticTextureCoordinateArray); - } - - if (newMode == ImageArrayDrawingMode) { - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinateArray.data()); - setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinateArray.data()); - setVertexAttributePointer(QT_OPACITY_ATTR, (GLfloat*)opacityArray.data()); - } - - // This needs to change when we implement high-quality anti-aliasing... - if (newMode != TextDrawingMode) - shaderManager->setMaskType(QGLEngineShaderManager::NoMask); - - mode = newMode; -} - -struct QGL2PEVectorPathCache -{ -#ifdef QT_OPENGL_CACHE_AS_VBOS - GLuint vbo; - GLuint ibo; -#else - float *vertices; - void *indices; -#endif - int vertexCount; - int indexCount; - GLenum primitiveType; - qreal iscale; - QVertexIndexVector::Type indexType; -}; - -void QGL2PaintEngineExPrivate::cleanupVectorPath(QPaintEngineEx *engine, void *data) -{ - QGL2PEVectorPathCache *c = (QGL2PEVectorPathCache *) data; -#ifdef QT_OPENGL_CACHE_AS_VBOS - Q_ASSERT(engine->type() == QPaintEngine::OpenGL2); - static_cast<QGL2PaintEngineEx *>(engine)->d_func()->unusedVBOSToClean << c->vbo; - if (c->ibo) - d->unusedIBOSToClean << c->ibo; -#else - Q_UNUSED(engine); - free(c->vertices); - free(c->indices); -#endif - delete c; -} - -// Assumes everything is configured for the brush you want to use -void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) -{ - transferMode(BrushDrawingMode); - - if (snapToPixelGrid) { - snapToPixelGrid = false; - matrixDirty = true; - } - - // Might need to call updateMatrix to re-calculate inverseScale - if (matrixDirty) - updateMatrix(); - - const QPointF* const points = reinterpret_cast<const QPointF*>(path.points()); - - // Check to see if there's any hints - if (path.shape() == QVectorPath::RectangleHint) { - QGLRect rect(points[0].x(), points[0].y(), points[2].x(), points[2].y()); - prepareForDraw(currentBrush.isOpaque()); - composite(rect); - } else if (path.isConvex()) { - - if (path.isCacheable()) { - QVectorPath::CacheEntry *data = path.lookupCacheData(q); - QGL2PEVectorPathCache *cache; - - bool updateCache = false; - - if (data) { - cache = (QGL2PEVectorPathCache *) data->data; - // Check if scale factor is exceeded for curved paths and generate curves if so... - if (path.isCurved()) { - qreal scaleFactor = cache->iscale / inverseScale; - if (scaleFactor < 0.5 || scaleFactor > 2.0) { -#ifdef QT_OPENGL_CACHE_AS_VBOS - glDeleteBuffers(1, &cache->vbo); - cache->vbo = 0; - Q_ASSERT(cache->ibo == 0); -#else - free(cache->vertices); - Q_ASSERT(cache->indices == 0); -#endif - updateCache = true; - } - } - } else { - cache = new QGL2PEVectorPathCache; - data = const_cast<QVectorPath &>(path).addCacheData(q, cache, cleanupVectorPath); - updateCache = true; - } - - // Flatten the path at the current scale factor and fill it into the cache struct. - if (updateCache) { - vertexCoordinateArray.clear(); - vertexCoordinateArray.addPath(path, inverseScale, false); - int vertexCount = vertexCoordinateArray.vertexCount(); - int floatSizeInBytes = vertexCount * 2 * sizeof(float); - cache->vertexCount = vertexCount; - cache->indexCount = 0; - cache->primitiveType = GL_TRIANGLE_FAN; - cache->iscale = inverseScale; -#ifdef QT_OPENGL_CACHE_AS_VBOS - glGenBuffers(1, &cache->vbo); - glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); - glBufferData(GL_ARRAY_BUFFER, floatSizeInBytes, vertexCoordinateArray.data(), GL_STATIC_DRAW); - cache->ibo = 0; -#else - cache->vertices = (float *) malloc(floatSizeInBytes); - memcpy(cache->vertices, vertexCoordinateArray.data(), floatSizeInBytes); - cache->indices = 0; -#endif - } - - prepareForDraw(currentBrush.isOpaque()); -#ifdef QT_OPENGL_CACHE_AS_VBOS - glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, 0); -#else - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, cache->vertices); -#endif - glDrawArrays(cache->primitiveType, 0, cache->vertexCount); - - } else { - // printf(" - Marking path as cachable...\n"); - // Tag it for later so that if the same path is drawn twice, it is assumed to be static and thus cachable - path.makeCacheable(); - vertexCoordinateArray.clear(); - vertexCoordinateArray.addPath(path, inverseScale, false); - prepareForDraw(currentBrush.isOpaque()); - drawVertexArrays(vertexCoordinateArray, GL_TRIANGLE_FAN); - } - - } else { - bool useCache = path.isCacheable(); - if (useCache) { - QRectF bbox = path.controlPointRect(); - // If the path doesn't fit within these limits, it is possible that the triangulation will fail. - useCache &= (bbox.left() > -0x8000 * inverseScale) - && (bbox.right() < 0x8000 * inverseScale) - && (bbox.top() > -0x8000 * inverseScale) - && (bbox.bottom() < 0x8000 * inverseScale); - } - - if (useCache) { - QVectorPath::CacheEntry *data = path.lookupCacheData(q); - QGL2PEVectorPathCache *cache; - - bool updateCache = false; - - if (data) { - cache = (QGL2PEVectorPathCache *) data->data; - // Check if scale factor is exceeded for curved paths and generate curves if so... - if (path.isCurved()) { - qreal scaleFactor = cache->iscale / inverseScale; - if (scaleFactor < 0.5 || scaleFactor > 2.0) { -#ifdef QT_OPENGL_CACHE_AS_VBOS - glDeleteBuffers(1, &cache->vbo); - glDeleteBuffers(1, &cache->ibo); -#else - free(cache->vertices); - free(cache->indices); -#endif - updateCache = true; - } - } - } else { - cache = new QGL2PEVectorPathCache; - data = const_cast<QVectorPath &>(path).addCacheData(q, cache, cleanupVectorPath); - updateCache = true; - } - - // Flatten the path at the current scale factor and fill it into the cache struct. - if (updateCache) { - QTriangleSet polys = qTriangulate(path, QTransform().scale(1 / inverseScale, 1 / inverseScale)); - cache->vertexCount = polys.vertices.size() / 2; - cache->indexCount = polys.indices.size(); - cache->primitiveType = GL_TRIANGLES; - cache->iscale = inverseScale; - cache->indexType = polys.indices.type(); -#ifdef QT_OPENGL_CACHE_AS_VBOS - glGenBuffers(1, &cache->vbo); - glGenBuffers(1, &cache->ibo); - glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cache->ibo); - - if (polys.indices.type() == QVertexIndexVector::UnsignedInt) - glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(quint32) * polys.indices.size(), polys.indices.data(), GL_STATIC_DRAW); - else - glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(quint16) * polys.indices.size(), polys.indices.data(), GL_STATIC_DRAW); - - QVarLengthArray<float> vertices(polys.vertices.size()); - for (int i = 0; i < polys.vertices.size(); ++i) - vertices[i] = float(inverseScale * polys.vertices.at(i)); - glBufferData(GL_ARRAY_BUFFER, sizeof(float) * vertices.size(), vertices.data(), GL_STATIC_DRAW); -#else - cache->vertices = (float *) malloc(sizeof(float) * polys.vertices.size()); - if (polys.indices.type() == QVertexIndexVector::UnsignedInt) { - cache->indices = (quint32 *) malloc(sizeof(quint32) * polys.indices.size()); - memcpy(cache->indices, polys.indices.data(), sizeof(quint32) * polys.indices.size()); - } else { - cache->indices = (quint16 *) malloc(sizeof(quint16) * polys.indices.size()); - memcpy(cache->indices, polys.indices.data(), sizeof(quint16) * polys.indices.size()); - } - for (int i = 0; i < polys.vertices.size(); ++i) - cache->vertices[i] = float(inverseScale * polys.vertices.at(i)); -#endif - } - - prepareForDraw(currentBrush.isOpaque()); -#ifdef QT_OPENGL_CACHE_AS_VBOS - glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cache->ibo); - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, 0); - if (cache->indexType == QVertexIndexVector::UnsignedInt) - glDrawElements(cache->primitiveType, cache->indexCount, GL_UNSIGNED_INT, 0); - else - glDrawElements(cache->primitiveType, cache->indexCount, GL_UNSIGNED_SHORT, 0); - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); - glBindBuffer(GL_ARRAY_BUFFER, 0); -#else - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, cache->vertices); - if (cache->indexType == QVertexIndexVector::UnsignedInt) - glDrawElements(cache->primitiveType, cache->indexCount, GL_UNSIGNED_INT, (qint32 *)cache->indices); - else - glDrawElements(cache->primitiveType, cache->indexCount, GL_UNSIGNED_SHORT, (qint16 *)cache->indices); -#endif - - } else { - // printf(" - Marking path as cachable...\n"); - // Tag it for later so that if the same path is drawn twice, it is assumed to be static and thus cachable - path.makeCacheable(); - - if (!device->format().stencil()) { - // If there is no stencil buffer, triangulate the path instead. - - QRectF bbox = path.controlPointRect(); - // If the path doesn't fit within these limits, it is possible that the triangulation will fail. - bool withinLimits = (bbox.left() > -0x8000 * inverseScale) - && (bbox.right() < 0x8000 * inverseScale) - && (bbox.top() > -0x8000 * inverseScale) - && (bbox.bottom() < 0x8000 * inverseScale); - if (withinLimits) { - QTriangleSet polys = qTriangulate(path, QTransform().scale(1 / inverseScale, 1 / inverseScale)); - - QVarLengthArray<float> vertices(polys.vertices.size()); - for (int i = 0; i < polys.vertices.size(); ++i) - vertices[i] = float(inverseScale * polys.vertices.at(i)); - - prepareForDraw(currentBrush.isOpaque()); - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, vertices.constData()); - if (polys.indices.type() == QVertexIndexVector::UnsignedInt) - glDrawElements(GL_TRIANGLES, polys.indices.size(), GL_UNSIGNED_INT, polys.indices.data()); - else - glDrawElements(GL_TRIANGLES, polys.indices.size(), GL_UNSIGNED_SHORT, polys.indices.data()); - } else { - // We can't handle big, concave painter paths with OpenGL without stencil buffer. - qWarning("Painter path exceeds +/-32767 pixels."); - } - return; - } - - // The path is too complicated & needs the stencil technique - vertexCoordinateArray.clear(); - vertexCoordinateArray.addPath(path, inverseScale, false); - - fillStencilWithVertexArray(vertexCoordinateArray, path.hasWindingFill()); - - glStencilMask(0xff); - glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); - - if (q->state()->clipTestEnabled) { - // Pass when high bit is set, replace stencil value with current clip - glStencilFunc(GL_NOTEQUAL, q->state()->currentClip, GL_STENCIL_HIGH_BIT); - } else if (path.hasWindingFill()) { - // Pass when any bit is set, replace stencil value with 0 - glStencilFunc(GL_NOTEQUAL, 0, 0xff); - } else { - // Pass when high bit is set, replace stencil value with 0 - glStencilFunc(GL_NOTEQUAL, 0, GL_STENCIL_HIGH_BIT); - } - prepareForDraw(currentBrush.isOpaque()); - - // Stencil the brush onto the dest buffer - composite(vertexCoordinateArray.boundingRect()); - glStencilMask(0); - updateClipScissorTest(); - } - } -} - - -void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data, - int count, - int *stops, - int stopCount, - const QGLRect &bounds, - StencilFillMode mode) -{ - Q_ASSERT(count || stops); - -// qDebug("QGL2PaintEngineExPrivate::fillStencilWithVertexArray()"); - glStencilMask(0xff); // Enable stencil writes - - if (dirtyStencilRegion.intersects(currentScissorBounds)) { - const QRegion clearRegion = dirtyStencilRegion.intersected(currentScissorBounds); - glClearStencil(0); // Clear to zero - for (const QRect &rect : clearRegion) { -#ifndef QT_GL_NO_SCISSOR_TEST - setScissor(rect); -#endif - glClear(GL_STENCIL_BUFFER_BIT); - } - - dirtyStencilRegion -= currentScissorBounds; - -#ifndef QT_GL_NO_SCISSOR_TEST - updateClipScissorTest(); -#endif - } - - glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); // Disable color writes - useSimpleShader(); - glEnable(GL_STENCIL_TEST); // For some reason, this has to happen _after_ the simple shader is use()'d - - if (mode == WindingFillMode) { - Q_ASSERT(stops && !count); - if (q->state()->clipTestEnabled) { - // Flatten clip values higher than current clip, and set high bit to match current clip - glStencilFunc(GL_LEQUAL, GL_STENCIL_HIGH_BIT | q->state()->currentClip, ~GL_STENCIL_HIGH_BIT); - glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); - composite(bounds); - - glStencilFunc(GL_EQUAL, GL_STENCIL_HIGH_BIT, GL_STENCIL_HIGH_BIT); - } else if (!stencilClean) { - // Clear stencil buffer within bounding rect - glStencilFunc(GL_ALWAYS, 0, 0xff); - glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO); - composite(bounds); - } - - // Inc. for front-facing triangle - glStencilOpSeparate(GL_FRONT, GL_KEEP, GL_INCR_WRAP, GL_INCR_WRAP); - // Dec. for back-facing "holes" - glStencilOpSeparate(GL_BACK, GL_KEEP, GL_DECR_WRAP, GL_DECR_WRAP); - glStencilMask(~GL_STENCIL_HIGH_BIT); - drawVertexArrays(data, stops, stopCount, GL_TRIANGLE_FAN); - - if (q->state()->clipTestEnabled) { - // Clear high bit of stencil outside of path - glStencilFunc(GL_EQUAL, q->state()->currentClip, ~GL_STENCIL_HIGH_BIT); - glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); - glStencilMask(GL_STENCIL_HIGH_BIT); - composite(bounds); - } - } else if (mode == OddEvenFillMode) { - glStencilMask(GL_STENCIL_HIGH_BIT); - glStencilOp(GL_KEEP, GL_KEEP, GL_INVERT); // Simply invert the stencil bit - drawVertexArrays(data, stops, stopCount, GL_TRIANGLE_FAN); - - } else { // TriStripStrokeFillMode - Q_ASSERT(count && !stops); // tristrips generated directly, so no vertexArray or stops - glStencilMask(GL_STENCIL_HIGH_BIT); -#if 0 - glStencilOp(GL_KEEP, GL_KEEP, GL_INVERT); // Simply invert the stencil bit - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, data); - glDrawArrays(GL_TRIANGLE_STRIP, 0, count); -#else - - glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE); - if (q->state()->clipTestEnabled) { - glStencilFunc(GL_LEQUAL, q->state()->currentClip | GL_STENCIL_HIGH_BIT, - ~GL_STENCIL_HIGH_BIT); - } else { - glStencilFunc(GL_ALWAYS, GL_STENCIL_HIGH_BIT, 0xff); - } - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, data); - glDrawArrays(GL_TRIANGLE_STRIP, 0, count); -#endif - } - - // Enable color writes & disable stencil writes - glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); -} - -/* - If the maximum value in the stencil buffer is GL_STENCIL_HIGH_BIT - 1, - restore the stencil buffer to a pristine state. The current clip region - is set to 1, and the rest to 0. -*/ -void QGL2PaintEngineExPrivate::resetClipIfNeeded() -{ - if (maxClip != (GL_STENCIL_HIGH_BIT - 1)) - return; - - Q_Q(QGL2PaintEngineEx); - - useSimpleShader(); - glEnable(GL_STENCIL_TEST); - glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); - - QRectF bounds = q->state()->matrix.inverted().mapRect(QRectF(0, 0, width, height)); - QGLRect rect(bounds.left(), bounds.top(), bounds.right(), bounds.bottom()); - - // Set high bit on clip region - glStencilFunc(GL_LEQUAL, q->state()->currentClip, 0xff); - glStencilOp(GL_KEEP, GL_INVERT, GL_INVERT); - glStencilMask(GL_STENCIL_HIGH_BIT); - composite(rect); - - // Reset clipping to 1 and everything else to zero - glStencilFunc(GL_NOTEQUAL, 0x01, GL_STENCIL_HIGH_BIT); - glStencilOp(GL_ZERO, GL_REPLACE, GL_REPLACE); - glStencilMask(0xff); - composite(rect); - - q->state()->currentClip = 1; - q->state()->canRestoreClip = false; - - maxClip = 1; - - glStencilMask(0x0); - glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); -} - -bool QGL2PaintEngineExPrivate::prepareForCachedGlyphDraw(const QFontEngineGlyphCache &cache) -{ - Q_Q(QGL2PaintEngineEx); - - Q_ASSERT(cache.transform().type() <= QTransform::TxScale); - - QTransform &transform = q->state()->matrix; - transform.scale(1.0 / cache.transform().m11(), 1.0 / cache.transform().m22()); - bool ret = prepareForDraw(false); - transform.scale(cache.transform().m11(), cache.transform().m22()); - - return ret; -} - -bool QGL2PaintEngineExPrivate::prepareForDraw(bool srcPixelsAreOpaque) -{ - if (brushTextureDirty && mode != ImageDrawingMode && mode != ImageArrayDrawingMode) - updateBrushTexture(); - - if (compositionModeDirty) - updateCompositionMode(); - - if (matrixDirty) - updateMatrix(); - - const bool stateHasOpacity = q->state()->opacity < 0.99f; - if (q->state()->composition_mode == QPainter::CompositionMode_Source - || (q->state()->composition_mode == QPainter::CompositionMode_SourceOver - && srcPixelsAreOpaque && !stateHasOpacity)) - { - glDisable(GL_BLEND); - } else { - glEnable(GL_BLEND); - } - - QGLEngineShaderManager::OpacityMode opacityMode; - if (mode == ImageArrayDrawingMode) { - opacityMode = QGLEngineShaderManager::AttributeOpacity; - } else { - opacityMode = stateHasOpacity ? QGLEngineShaderManager::UniformOpacity - : QGLEngineShaderManager::NoOpacity; - if (stateHasOpacity && (mode != ImageDrawingMode)) { - // Using a brush - bool brushIsPattern = (currentBrush.style() >= Qt::Dense1Pattern) && - (currentBrush.style() <= Qt::DiagCrossPattern); - - if ((currentBrush.style() == Qt::SolidPattern) || brushIsPattern) - opacityMode = QGLEngineShaderManager::NoOpacity; // Global opacity handled by srcPixel shader - } - } - shaderManager->setOpacityMode(opacityMode); - - bool changed = shaderManager->useCorrectShaderProg(); - // If the shader program needs changing, we change it and mark all uniforms as dirty - if (changed) { - // The shader program has changed so mark all uniforms as dirty: - brushUniformsDirty = true; - opacityUniformDirty = true; - matrixUniformDirty = true; - translateZUniformDirty = true; - } - - if (brushUniformsDirty && mode != ImageDrawingMode && mode != ImageArrayDrawingMode) - updateBrushUniforms(); - - if (opacityMode == QGLEngineShaderManager::UniformOpacity && opacityUniformDirty) { - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::GlobalOpacity), (GLfloat)q->state()->opacity); - opacityUniformDirty = false; - } - - if (matrixUniformDirty && shaderManager->hasComplexGeometry()) { - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Matrix), - pmvMatrix); - matrixUniformDirty = false; - } - - if (translateZUniformDirty && shaderManager->hasComplexGeometry()) { - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::TranslateZ), - translateZ); - translateZUniformDirty = false; - } - - return changed; -} - -void QGL2PaintEngineExPrivate::composite(const QGLRect& boundingRect) -{ - setCoords(staticVertexCoordinateArray, boundingRect); - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, staticVertexCoordinateArray); - glDrawArrays(GL_TRIANGLE_FAN, 0, 4); -} - -// Draws the vertex array as a set of <vertexArrayStops.size()> triangle fans. -void QGL2PaintEngineExPrivate::drawVertexArrays(const float *data, int *stops, int stopCount, - GLenum primitive) -{ - // Now setup the pointer to the vertex array: - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, data); - - int previousStop = 0; - for (int i=0; i<stopCount; ++i) { - int stop = stops[i]; -/* - qDebug("Drawing triangle fan for vertecies %d -> %d:", previousStop, stop-1); - for (int i=previousStop; i<stop; ++i) - qDebug(" %02d: [%.2f, %.2f]", i, vertexArray.data()[i].x, vertexArray.data()[i].y); -*/ - glDrawArrays(primitive, previousStop, stop - previousStop); - previousStop = stop; - } -} - -/////////////////////////////////// Public Methods ////////////////////////////////////////// - -QGL2PaintEngineEx::QGL2PaintEngineEx() - : QPaintEngineEx(*(new QGL2PaintEngineExPrivate(this))) -{ -} - -QGL2PaintEngineEx::~QGL2PaintEngineEx() -{ -} - -void QGL2PaintEngineEx::fill(const QVectorPath &path, const QBrush &brush) -{ - Q_D(QGL2PaintEngineEx); - - if (qbrush_style(brush) == Qt::NoBrush) - return; - ensureActive(); - d->setBrush(brush); - d->fill(path); -} - -Q_GUI_EXPORT bool qt_scaleForTransform(const QTransform &transform, qreal *scale); // qtransform.cpp - - -void QGL2PaintEngineEx::stroke(const QVectorPath &path, const QPen &pen) -{ - Q_D(QGL2PaintEngineEx); - - const QBrush &penBrush = qpen_brush(pen); - if (qpen_style(pen) == Qt::NoPen || qbrush_style(penBrush) == Qt::NoBrush) - return; - - QGL2PaintEngineState *s = state(); - if (qt_pen_is_cosmetic(pen, s->renderHints) && !qt_scaleForTransform(s->transform(), 0)) { - // QTriangulatingStroker class is not meant to support cosmetically sheared strokes. - QPaintEngineEx::stroke(path, pen); - return; - } - - ensureActive(); - d->setBrush(penBrush); - d->stroke(path, pen); -} - -void QGL2PaintEngineExPrivate::stroke(const QVectorPath &path, const QPen &pen) -{ - const QGL2PaintEngineState *s = q->state(); - if (snapToPixelGrid) { - snapToPixelGrid = false; - matrixDirty = true; - } - - const Qt::PenStyle penStyle = qpen_style(pen); - const QBrush &penBrush = qpen_brush(pen); - const bool opaque = penBrush.isOpaque() && s->opacity > 0.99; - - transferMode(BrushDrawingMode); - - // updateMatrix() is responsible for setting the inverse scale on - // the strokers, so we need to call it here and not wait for - // prepareForDraw() down below. - updateMatrix(); - - QRectF clip = q->state()->matrix.inverted().mapRect(q->state()->clipEnabled - ? q->state()->rectangleClip - : QRectF(0, 0, width, height)); - - if (penStyle == Qt::SolidLine) { - stroker.process(path, pen, clip, s->renderHints); - - } else { // Some sort of dash - dasher.process(path, pen, clip, s->renderHints); - - QVectorPath dashStroke(dasher.points(), - dasher.elementCount(), - dasher.elementTypes()); - stroker.process(dashStroke, pen, clip, s->renderHints); - } - - if (!stroker.vertexCount()) - return; - - if (opaque) { - prepareForDraw(opaque); - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, stroker.vertices()); - glDrawArrays(GL_TRIANGLE_STRIP, 0, stroker.vertexCount() / 2); - -// QBrush b(Qt::green); -// d->setBrush(&b); -// d->prepareForDraw(true); -// glDrawArrays(GL_LINE_STRIP, 0, d->stroker.vertexCount() / 2); - - } else { - qreal width = qpen_widthf(pen) / 2; - if (width == 0) - width = 0.5; - qreal extra = pen.joinStyle() == Qt::MiterJoin - ? qMax(pen.miterLimit() * width, width) - : width; - - if (qt_pen_is_cosmetic(pen, s->renderHints)) - extra = extra * inverseScale; - - QRectF bounds = path.controlPointRect().adjusted(-extra, -extra, extra, extra); - - fillStencilWithVertexArray(stroker.vertices(), stroker.vertexCount() / 2, - 0, 0, bounds, QGL2PaintEngineExPrivate::TriStripStrokeFillMode); - - glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); - - // Pass when any bit is set, replace stencil value with 0 - glStencilFunc(GL_NOTEQUAL, 0, GL_STENCIL_HIGH_BIT); - prepareForDraw(false); - - // Stencil the brush onto the dest buffer - composite(bounds); - - glStencilMask(0); - - updateClipScissorTest(); - } -} - -void QGL2PaintEngineEx::penChanged() { } -void QGL2PaintEngineEx::brushChanged() { } -void QGL2PaintEngineEx::brushOriginChanged() { } - -void QGL2PaintEngineEx::opacityChanged() -{ -// qDebug("QGL2PaintEngineEx::opacityChanged()"); - Q_D(QGL2PaintEngineEx); - state()->opacityChanged = true; - - Q_ASSERT(d->shaderManager); - d->brushUniformsDirty = true; - d->opacityUniformDirty = true; -} - -void QGL2PaintEngineEx::compositionModeChanged() -{ -// qDebug("QGL2PaintEngineEx::compositionModeChanged()"); - Q_D(QGL2PaintEngineEx); - state()->compositionModeChanged = true; - d->compositionModeDirty = true; -} - -void QGL2PaintEngineEx::renderHintsChanged() -{ - Q_D(QGL2PaintEngineEx); - state()->renderHintsChanged = true; - -#if !defined(QT_OPENGL_ES_2) -QT_WARNING_PUSH -QT_WARNING_DISABLE_DEPRECATED - if (!d->ctx->contextHandle()->isOpenGLES()) { - if ((state()->renderHints & QPainter::Antialiasing) -#if QT_DEPRECATED_SINCE(5, 14) - || (state()->renderHints & QPainter::HighQualityAntialiasing) -#endif - ) - d->glEnable(GL_MULTISAMPLE); - else - d->glDisable(GL_MULTISAMPLE); - } -QT_WARNING_POP -#endif - - d->lastTextureUsed = GLuint(-1); - d->brushTextureDirty = true; -// qDebug("QGL2PaintEngineEx::renderHintsChanged() not implemented!"); -} - -void QGL2PaintEngineEx::transformChanged() -{ - Q_D(QGL2PaintEngineEx); - d->matrixDirty = true; - state()->matrixChanged = true; -} - - -static const QRectF scaleRect(const QRectF &r, qreal sx, qreal sy) -{ - return QRectF(r.x() * sx, r.y() * sy, r.width() * sx, r.height() * sy); -} - -void QGL2PaintEngineEx::drawPixmap(const QRectF& dest, const QPixmap & pixmap, const QRectF & src) -{ - Q_D(QGL2PaintEngineEx); - QGLContext *ctx = d->ctx; - - int max_texture_size = ctx->d_func()->maxTextureSize(); - if (pixmap.width() > max_texture_size || pixmap.height() > max_texture_size) { - QPixmap scaled = pixmap.scaled(max_texture_size, max_texture_size, Qt::KeepAspectRatio); - - const qreal sx = scaled.width() / qreal(pixmap.width()); - const qreal sy = scaled.height() / qreal(pixmap.height()); - - drawPixmap(dest, scaled, scaleRect(src, sx, sy)); - return; - } - - ensureActive(); - d->transferMode(ImageDrawingMode); - - QGLContext::BindOptions bindOptions = QGLContext::InternalBindOption|QGLContext::CanFlipNativePixmapBindOption; -#ifdef QGL_USE_TEXTURE_POOL - bindOptions |= QGLContext::TemporarilyCachedBindOption; -#endif - - d->glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); - QGLTexture *texture = - ctx->d_func()->bindTexture(pixmap, GL_TEXTURE_2D, GL_RGBA, bindOptions); - - GLfloat top = texture->options & QGLContext::InvertedYBindOption ? (pixmap.height() - src.top()) : src.top(); - GLfloat bottom = texture->options & QGLContext::InvertedYBindOption ? (pixmap.height() - src.bottom()) : src.bottom(); - QGLRect srcRect(src.left(), top, src.right(), bottom); - - bool isBitmap = pixmap.isQBitmap(); - bool isOpaque = !isBitmap && !pixmap.hasAlpha(); - - d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, - state()->renderHints & QPainter::SmoothPixmapTransform, texture->id); - d->drawTexture(dest, srcRect, pixmap.size(), isOpaque, isBitmap); - - if (texture->options&QGLContext::TemporarilyCachedBindOption) { - // pixmap was temporarily cached as a QImage texture by pooling system - // and should be destroyed immediately - QGLTextureCache::instance()->remove(ctx, texture->id); - } -} - -void QGL2PaintEngineEx::drawImage(const QRectF& dest, const QImage& image, const QRectF& src, - Qt::ImageConversionFlags) -{ - Q_D(QGL2PaintEngineEx); - QGLContext *ctx = d->ctx; - - int max_texture_size = ctx->d_func()->maxTextureSize(); - if (image.width() > max_texture_size || image.height() > max_texture_size) { - QImage scaled = image.scaled(max_texture_size, max_texture_size, Qt::KeepAspectRatio); - - const qreal sx = scaled.width() / qreal(image.width()); - const qreal sy = scaled.height() / qreal(image.height()); - - drawImage(dest, scaled, scaleRect(src, sx, sy)); - return; - } - - ensureActive(); - d->transferMode(ImageDrawingMode); - - d->glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); - - QGLContext::BindOptions bindOptions = QGLContext::InternalBindOption; -#ifdef QGL_USE_TEXTURE_POOL - bindOptions |= QGLContext::TemporarilyCachedBindOption; -#endif - - QGLTexture *texture = ctx->d_func()->bindTexture(image, GL_TEXTURE_2D, GL_RGBA, bindOptions); - GLuint id = texture->id; - - d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, - state()->renderHints & QPainter::SmoothPixmapTransform, id); - d->drawTexture(dest, src, image.size(), !image.hasAlphaChannel()); - - if (texture->options&QGLContext::TemporarilyCachedBindOption) { - // image was temporarily cached by texture pooling system - // and should be destroyed immediately - QGLTextureCache::instance()->remove(ctx, texture->id); - } -} - -void QGL2PaintEngineEx::drawStaticTextItem(QStaticTextItem *textItem) -{ - Q_D(QGL2PaintEngineEx); - - ensureActive(); - - QPainterState *s = state(); - - // don't try to cache huge fonts or vastly transformed fonts - QFontEngine *fontEngine = textItem->fontEngine(); - if (shouldDrawCachedGlyphs(fontEngine, s->matrix)) { - - QFontEngine::GlyphFormat glyphFormat = fontEngine->glyphFormat != QFontEngine::Format_None - ? fontEngine->glyphFormat : d->glyphCacheFormat; - - if (glyphFormat == QFontEngine::Format_A32) { - if (!QGLFramebufferObject::hasOpenGLFramebufferObjects() - || d->device->alphaRequested() || s->matrix.type() > QTransform::TxTranslate - || (s->composition_mode != QPainter::CompositionMode_Source - && s->composition_mode != QPainter::CompositionMode_SourceOver)) - { - glyphFormat = QFontEngine::Format_A8; - } - } - - d->drawCachedGlyphs(glyphFormat, textItem); - } else { - QPaintEngineEx::drawStaticTextItem(textItem); - } -} - -bool QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const QSize &size, const QRectF &src) -{ - Q_D(QGL2PaintEngineEx); - if (!d->shaderManager) - return false; - - ensureActive(); - d->transferMode(ImageDrawingMode); - - d->glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); - d->glBindTexture(GL_TEXTURE_2D, textureId); - - QGLRect srcRect(src.left(), src.bottom(), src.right(), src.top()); - - d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, - state()->renderHints & QPainter::SmoothPixmapTransform, textureId); - d->drawTexture(dest, srcRect, size, false); - return true; -} - -void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem) -{ - Q_D(QGL2PaintEngineEx); - - ensureActive(); - QGL2PaintEngineState *s = state(); - - const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem); - - QTransform::TransformationType txtype = s->matrix.type(); - - QFontEngine::GlyphFormat glyphFormat = ti.fontEngine->glyphFormat != QFontEngine::Format_None - ? ti.fontEngine->glyphFormat : d->glyphCacheFormat; - - if (glyphFormat == QFontEngine::Format_A32) { - if (!QGLFramebufferObject::hasOpenGLFramebufferObjects() - || d->device->alphaRequested() || txtype > QTransform::TxTranslate - || (state()->composition_mode != QPainter::CompositionMode_Source - && state()->composition_mode != QPainter::CompositionMode_SourceOver)) - { - glyphFormat = QFontEngine::Format_A8; - } - } - - if (shouldDrawCachedGlyphs(ti.fontEngine, s->matrix)) { - QVarLengthArray<QFixedPoint> positions; - QVarLengthArray<glyph_t> glyphs; - QTransform matrix = QTransform::fromTranslate(p.x(), p.y()); - ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); - - { - QStaticTextItem staticTextItem; - staticTextItem.setFontEngine(ti.fontEngine); - staticTextItem.glyphs = glyphs.data(); - staticTextItem.numGlyphs = glyphs.size(); - staticTextItem.glyphPositions = positions.data(); - - d->drawCachedGlyphs(glyphFormat, &staticTextItem); - } - return; - } - - QPaintEngineEx::drawTextItem(p, ti); -} - -namespace { - - class QOpenGLStaticTextUserData: public QStaticTextUserData - { - public: - QOpenGLStaticTextUserData() - : QStaticTextUserData(OpenGLUserData), cacheSize(0, 0), cacheSerialNumber(0) - { - } - - ~QOpenGLStaticTextUserData() - { - } - - QSize cacheSize; - QGL2PEXVertexArray vertexCoordinateArray; - QGL2PEXVertexArray textureCoordinateArray; - QFontEngine::GlyphFormat glyphFormat; - int cacheSerialNumber; - }; - -} - - -// #define QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO - -void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngine::GlyphFormat glyphFormat, - QStaticTextItem *staticTextItem) -{ - Q_Q(QGL2PaintEngineEx); - - QGL2PaintEngineState *s = q->state(); - - void *cacheKey = const_cast<QGLContext *>(QGLContextPrivate::contextGroup(ctx)->context()); - bool recreateVertexArrays = false; - - QTransform glyphCacheTransform; - QFontEngine *fe = staticTextItem->fontEngine(); - if (fe->supportsTransformation(s->matrix)) { - // The font-engine supports rendering glyphs with the current transform, so we - // build a glyph-cache with the scale pre-applied, so that the cache contains - // glyphs with the appropriate resolution in the case of retina displays. - glyphCacheTransform = s->matrix.type() < QTransform::TxRotate ? - QTransform::fromScale(qAbs(s->matrix.m11()), qAbs(s->matrix.m22())) : - QTransform::fromScale( - QVector2D(s->matrix.m11(), s->matrix.m12()).length(), - QVector2D(s->matrix.m21(), s->matrix.m22()).length()); - } - - QGLTextureGlyphCache *cache = - (QGLTextureGlyphCache *) fe->glyphCache(cacheKey, glyphFormat, glyphCacheTransform); - if (!cache || cache->glyphFormat() != glyphFormat || cache->contextGroup() == 0) { - cache = new QGLTextureGlyphCache(glyphFormat, glyphCacheTransform); - fe->setGlyphCache(cacheKey, cache); - recreateVertexArrays = true; - } - - if (staticTextItem->userDataNeedsUpdate) { - recreateVertexArrays = true; - } else if (staticTextItem->userData() == 0) { - recreateVertexArrays = true; - } else if (staticTextItem->userData()->type != QStaticTextUserData::OpenGLUserData) { - recreateVertexArrays = true; - } else { - QOpenGLStaticTextUserData *userData = static_cast<QOpenGLStaticTextUserData *>(staticTextItem->userData()); - if (userData->glyphFormat != glyphFormat) { - recreateVertexArrays = true; - } else if (userData->cacheSerialNumber != cache->serialNumber()) { - recreateVertexArrays = true; - } - } - - // We only need to update the cache with new glyphs if we are actually going to recreate the vertex arrays. - // If the cache size has changed, we do need to regenerate the vertices, but we don't need to repopulate the - // cache so this text is performed before we test if the cache size has changed. - if (recreateVertexArrays) { - cache->setPaintEnginePrivate(this); - if (!cache->populate(fe, staticTextItem->numGlyphs, - staticTextItem->glyphs, staticTextItem->glyphPositions)) { - // No space for glyphs in cache. We need to reset it and try again. - cache->clear(); - cache->populate(fe, staticTextItem->numGlyphs, - staticTextItem->glyphs, staticTextItem->glyphPositions); - } - cache->fillInPendingGlyphs(); - } - - if (cache->width() == 0 || cache->height() == 0) - return; - - transferMode(TextDrawingMode); - - int margin = fe->glyphMargin(glyphFormat); - - GLfloat dx = 1.0 / cache->width(); - GLfloat dy = 1.0 / cache->height(); - - // Use global arrays by default - QGL2PEXVertexArray *vertexCoordinates = &vertexCoordinateArray; - QGL2PEXVertexArray *textureCoordinates = &textureCoordinateArray; - - if (staticTextItem->useBackendOptimizations) { - QOpenGLStaticTextUserData *userData = 0; - - if (staticTextItem->userData() == 0 - || staticTextItem->userData()->type != QStaticTextUserData::OpenGLUserData) { - - userData = new QOpenGLStaticTextUserData(); - staticTextItem->setUserData(userData); - - } else { - userData = static_cast<QOpenGLStaticTextUserData*>(staticTextItem->userData()); - } - - userData->glyphFormat = glyphFormat; - userData->cacheSerialNumber = cache->serialNumber(); - - // Use cache if backend optimizations is turned on - vertexCoordinates = &userData->vertexCoordinateArray; - textureCoordinates = &userData->textureCoordinateArray; - - QSize size(cache->width(), cache->height()); - if (userData->cacheSize != size) { - recreateVertexArrays = true; - userData->cacheSize = size; - } - } - - if (recreateVertexArrays) { - vertexCoordinates->clear(); - textureCoordinates->clear(); - - bool supportsSubPixelPositions = fe->supportsSubPixelPositions(); - for (int i=0; i<staticTextItem->numGlyphs; ++i) { - QFixed subPixelPosition; - if (supportsSubPixelPositions) - subPixelPosition = fe->subPixelPositionForX(staticTextItem->glyphPositions[i].x); - - QTextureGlyphCache::GlyphAndSubPixelPosition glyph(staticTextItem->glyphs[i], subPixelPosition); - - const QTextureGlyphCache::Coord &c = cache->coords[glyph]; - if (c.isNull()) - continue; - - int x = qFloor(staticTextItem->glyphPositions[i].x.toReal() * cache->transform().m11()) + c.baseLineX - margin; - int y = qRound(staticTextItem->glyphPositions[i].y.toReal() * cache->transform().m22()) - c.baseLineY - margin; - - vertexCoordinates->addQuad(QRectF(x, y, c.w, c.h)); - textureCoordinates->addQuad(QRectF(c.x*dx, c.y*dy, c.w * dx, c.h * dy)); - } - - staticTextItem->userDataNeedsUpdate = false; - } - - int numGlyphs = vertexCoordinates->vertexCount() / 4; - if (numGlyphs == 0) - return; - - if (elementIndices.size() < numGlyphs*6) { - Q_ASSERT(elementIndices.size() % 6 == 0); - int j = elementIndices.size() / 6 * 4; - while (j < numGlyphs*4) { - elementIndices.append(j + 0); - elementIndices.append(j + 0); - elementIndices.append(j + 1); - elementIndices.append(j + 2); - elementIndices.append(j + 3); - elementIndices.append(j + 3); - - j += 4; - } - -#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) - if (elementIndicesVBOId == 0) - glGenBuffers(1, &elementIndicesVBOId); - - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementIndicesVBOId); - glBufferData(GL_ELEMENT_ARRAY_BUFFER, elementIndices.size() * sizeof(GLushort), - elementIndices.constData(), GL_STATIC_DRAW); -#endif - } else { -#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementIndicesVBOId); -#endif - } - - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinates->data()); - setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinates->data()); - - if (!snapToPixelGrid) { - snapToPixelGrid = true; - matrixDirty = true; - } - - QBrush pensBrush = q->state()->pen.brush(); - setBrush(pensBrush); - - if (glyphFormat == QFontEngine::Format_A32) { - - // Subpixel antialiasing without gamma correction - - QPainter::CompositionMode compMode = q->state()->composition_mode; - Q_ASSERT(compMode == QPainter::CompositionMode_Source - || compMode == QPainter::CompositionMode_SourceOver); - - shaderManager->setMaskType(QGLEngineShaderManager::SubPixelMaskPass1); - - if (pensBrush.style() == Qt::SolidPattern) { - // Solid patterns can get away with only one pass. - QColor c = pensBrush.color(); - qreal oldOpacity = q->state()->opacity; - if (compMode == QPainter::CompositionMode_Source) { - c = qt_premultiplyColor(c, q->state()->opacity); - q->state()->opacity = 1; - opacityUniformDirty = true; - } - - compositionModeDirty = false; // I can handle this myself, thank you very much - prepareForCachedGlyphDraw(*cache); - - // prepareForCachedGlyphDraw() have set the opacity on the current shader, so the opacity state can now be reset. - if (compMode == QPainter::CompositionMode_Source) { - q->state()->opacity = oldOpacity; - opacityUniformDirty = true; - } - - glEnable(GL_BLEND); - glBlendFunc(GL_CONSTANT_COLOR, GL_ONE_MINUS_SRC_COLOR); - glBlendColor(c.redF(), c.greenF(), c.blueF(), c.alphaF()); - } else { - // Other brush styles need two passes. - - qreal oldOpacity = q->state()->opacity; - if (compMode == QPainter::CompositionMode_Source) { - q->state()->opacity = 1; - opacityUniformDirty = true; - pensBrush = Qt::white; - setBrush(pensBrush); - } - - compositionModeDirty = false; // I can handle this myself, thank you very much - prepareForCachedGlyphDraw(*cache); - glEnable(GL_BLEND); - glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_COLOR); - - glActiveTexture(GL_TEXTURE0 + QT_MASK_TEXTURE_UNIT); - glBindTexture(GL_TEXTURE_2D, cache->texture()); - updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, false); - -#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) - glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, 0); -#else - glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); -#endif - - shaderManager->setMaskType(QGLEngineShaderManager::SubPixelMaskPass2); - - if (compMode == QPainter::CompositionMode_Source) { - q->state()->opacity = oldOpacity; - opacityUniformDirty = true; - pensBrush = q->state()->pen.brush(); - setBrush(pensBrush); - } - - compositionModeDirty = false; - prepareForCachedGlyphDraw(*cache); - glEnable(GL_BLEND); - glBlendFunc(GL_ONE, GL_ONE); - } - compositionModeDirty = true; - } else { - // Grayscale/mono glyphs - - shaderManager->setMaskType(QGLEngineShaderManager::PixelMask); - prepareForCachedGlyphDraw(*cache); - } - - QGLTextureGlyphCache::FilterMode filterMode = (s->matrix.type() > QTransform::TxTranslate)?QGLTextureGlyphCache::Linear:QGLTextureGlyphCache::Nearest; - if (lastMaskTextureUsed != cache->texture() || cache->filterMode() != filterMode) { - - glActiveTexture(GL_TEXTURE0 + QT_MASK_TEXTURE_UNIT); - if (lastMaskTextureUsed != cache->texture()) { - glBindTexture(GL_TEXTURE_2D, cache->texture()); - lastMaskTextureUsed = cache->texture(); - } - - if (cache->filterMode() != filterMode) { - if (filterMode == QGLTextureGlyphCache::Linear) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - } else { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - } - cache->setFilterMode(filterMode); - } - } - -#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) - glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, 0); - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); -#else - glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); -#endif -} - -void QGL2PaintEngineEx::drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, - QPainter::PixmapFragmentHints hints) -{ - Q_D(QGL2PaintEngineEx); - // Use fallback for extended composition modes. - if (state()->composition_mode > QPainter::CompositionMode_Plus) { - QPaintEngineEx::drawPixmapFragments(fragments, fragmentCount, pixmap, hints); - return; - } - - ensureActive(); - int max_texture_size = d->ctx->d_func()->maxTextureSize(); - if (pixmap.width() > max_texture_size || pixmap.height() > max_texture_size) { - QPixmap scaled = pixmap.scaled(max_texture_size, max_texture_size, Qt::KeepAspectRatio); - d->drawPixmapFragments(fragments, fragmentCount, scaled, hints); - } else { - d->drawPixmapFragments(fragments, fragmentCount, pixmap, hints); - } -} - - -void QGL2PaintEngineExPrivate::drawPixmapFragments(const QPainter::PixmapFragment *fragments, - int fragmentCount, const QPixmap &pixmap, - QPainter::PixmapFragmentHints hints) -{ - GLfloat dx = 1.0f / pixmap.size().width(); - GLfloat dy = 1.0f / pixmap.size().height(); - - vertexCoordinateArray.clear(); - textureCoordinateArray.clear(); - opacityArray.reset(); - - if (snapToPixelGrid) { - snapToPixelGrid = false; - matrixDirty = true; - } - - bool allOpaque = true; - - for (int i = 0; i < fragmentCount; ++i) { - qreal s = 0; - qreal c = 1; - if (fragments[i].rotation != 0) { - s = qFastSin(qDegreesToRadians(fragments[i].rotation)); - c = qFastCos(qDegreesToRadians(fragments[i].rotation)); - } - - qreal right = 0.5 * fragments[i].scaleX * fragments[i].width; - qreal bottom = 0.5 * fragments[i].scaleY * fragments[i].height; - QGLPoint bottomRight(right * c - bottom * s, right * s + bottom * c); - QGLPoint bottomLeft(-right * c - bottom * s, -right * s + bottom * c); - - vertexCoordinateArray.addVertex(bottomRight.x + fragments[i].x, bottomRight.y + fragments[i].y); - vertexCoordinateArray.addVertex(-bottomLeft.x + fragments[i].x, -bottomLeft.y + fragments[i].y); - vertexCoordinateArray.addVertex(-bottomRight.x + fragments[i].x, -bottomRight.y + fragments[i].y); - vertexCoordinateArray.addVertex(-bottomRight.x + fragments[i].x, -bottomRight.y + fragments[i].y); - vertexCoordinateArray.addVertex(bottomLeft.x + fragments[i].x, bottomLeft.y + fragments[i].y); - vertexCoordinateArray.addVertex(bottomRight.x + fragments[i].x, bottomRight.y + fragments[i].y); - - QGLRect src(fragments[i].sourceLeft * dx, fragments[i].sourceTop * dy, - (fragments[i].sourceLeft + fragments[i].width) * dx, - (fragments[i].sourceTop + fragments[i].height) * dy); - - textureCoordinateArray.addVertex(src.right, src.bottom); - textureCoordinateArray.addVertex(src.right, src.top); - textureCoordinateArray.addVertex(src.left, src.top); - textureCoordinateArray.addVertex(src.left, src.top); - textureCoordinateArray.addVertex(src.left, src.bottom); - textureCoordinateArray.addVertex(src.right, src.bottom); - - qreal opacity = fragments[i].opacity * q->state()->opacity; - opacityArray << opacity << opacity << opacity << opacity << opacity << opacity; - allOpaque &= (opacity >= 0.99f); - } - - glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); - QGLTexture *texture = ctx->d_func()->bindTexture(pixmap, GL_TEXTURE_2D, GL_RGBA, - QGLContext::InternalBindOption - | QGLContext::CanFlipNativePixmapBindOption); - - if (texture->options & QGLContext::InvertedYBindOption) { - // Flip texture y-coordinate. - QGLPoint *data = textureCoordinateArray.data(); - for (int i = 0; i < 6 * fragmentCount; ++i) - data[i].y = 1 - data[i].y; - } - - transferMode(ImageArrayDrawingMode); - - bool isBitmap = pixmap.isQBitmap(); - bool isOpaque = !isBitmap && (!pixmap.hasAlpha() || (hints & QPainter::OpaqueHint)) && allOpaque; - - updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, - q->state()->renderHints & QPainter::SmoothPixmapTransform, texture->id); - - // Setup for texture drawing - currentBrush = noBrush; - shaderManager->setSrcPixelType(isBitmap ? QGLEngineShaderManager::PatternSrc - : QGLEngineShaderManager::ImageSrc); - if (prepareForDraw(isOpaque)) - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::ImageTexture), QT_IMAGE_TEXTURE_UNIT); - - if (isBitmap) { - QColor col = qt_premultiplyColor(q->state()->pen.color(), (GLfloat)q->state()->opacity); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::PatternColor), col); - } - - glDrawArrays(GL_TRIANGLES, 0, 6 * fragmentCount); -} - -bool QGL2PaintEngineEx::begin(QPaintDevice *pdev) -{ - Q_D(QGL2PaintEngineEx); - -// qDebug("QGL2PaintEngineEx::begin()"); - if (pdev->devType() == QInternal::OpenGL) - d->device = static_cast<QGLPaintDevice*>(pdev); - else - d->device = QGLPaintDevice::getDevice(pdev); - - if (!d->device) - return false; - - d->ctx = d->device->context(); - d->ctx->d_ptr->active_engine = this; - - d->resetOpenGLContextActiveEngine(); - - const QSize sz = d->device->size(); - d->width = sz.width(); - d->height = sz.height(); - d->mode = BrushDrawingMode; - d->brushTextureDirty = true; - d->brushUniformsDirty = true; - d->matrixUniformDirty = true; - d->matrixDirty = true; - d->compositionModeDirty = true; - d->opacityUniformDirty = true; - d->translateZUniformDirty = true; - d->needsSync = true; - d->useSystemClip = !systemClip().isEmpty(); - d->currentBrush = QBrush(); - - d->dirtyStencilRegion = QRect(0, 0, d->width, d->height); - d->stencilClean = true; - - // Calling begin paint should make the correct context current. So, any - // code which calls into GL or otherwise needs a current context *must* - // go after beginPaint: - d->device->beginPaint(); - - d->initializeOpenGLFunctions(); - - d->shaderManager = new QGLEngineShaderManager(d->ctx); - - d->glDisable(GL_STENCIL_TEST); - d->glDisable(GL_DEPTH_TEST); - d->glDisable(GL_SCISSOR_TEST); - -#if !defined(QT_OPENGL_ES_2) - if (!d->ctx->contextHandle()->isOpenGLES()) - d->glDisable(GL_MULTISAMPLE); -#endif - - d->glyphCacheFormat = QFontEngine::Format_A8; - -#if !defined(QT_OPENGL_ES_2) - if (!d->ctx->contextHandle()->isOpenGLES()) { - d->glyphCacheFormat = QFontEngine::Format_A32; - d->multisamplingAlwaysEnabled = false; - } else { - d->multisamplingAlwaysEnabled = d->device->format().sampleBuffers(); - } -#else - // OpenGL ES can't switch MSAA off, so if the gl paint device is - // multisampled, it's always multisampled. - d->multisamplingAlwaysEnabled = d->device->format().sampleBuffers(); -#endif - - return true; -} - -bool QGL2PaintEngineEx::end() -{ - Q_D(QGL2PaintEngineEx); - - QGLContext *ctx = d->ctx; - d->glUseProgram(0); - d->transferMode(BrushDrawingMode); - d->device->endPaint(); - - ctx->d_ptr->active_engine = 0; - ctx->makeCurrent(); - d->resetOpenGLContextActiveEngine(); - d->resetGLState(); - - delete d->shaderManager; - d->shaderManager = 0; - d->currentBrush = QBrush(); - -#ifdef QT_OPENGL_CACHE_AS_VBOS - if (!d->unusedVBOSToClean.isEmpty()) { - d->glDeleteBuffers(d->unusedVBOSToClean.size(), d->unusedVBOSToClean.constData()); - d->unusedVBOSToClean.clear(); - } - if (!d->unusedIBOSToClean.isEmpty()) { - d->glDeleteBuffers(d->unusedIBOSToClean.size(), d->unusedIBOSToClean.constData()); - d->unusedIBOSToClean.clear(); - } -#endif - - return false; -} - -void QGL2PaintEngineEx::ensureActive() -{ - Q_D(QGL2PaintEngineEx); - QGLContext *ctx = d->ctx; - - if (isActive() && (ctx->d_ptr->active_engine != this || d->resetOpenGLContextActiveEngine())) { - ctx->d_ptr->active_engine = this; - d->needsSync = true; - } - - d->device->ensureActiveTarget(); - - if (d->needsSync) { - d->transferMode(BrushDrawingMode); - d->glViewport(0, 0, d->width, d->height); - d->needsSync = false; - d->lastMaskTextureUsed = 0; - d->shaderManager->setDirty(); - d->ctx->d_func()->syncGlState(); - for (int i = 0; i < 3; ++i) - d->vertexAttribPointers[i] = (GLfloat*)-1; // Assume the pointers are clobbered - setState(state()); - } -} - -void QGL2PaintEngineExPrivate::updateClipScissorTest() -{ - Q_Q(QGL2PaintEngineEx); - if (q->state()->clipTestEnabled) { - glEnable(GL_STENCIL_TEST); - glStencilFunc(GL_LEQUAL, q->state()->currentClip, ~GL_STENCIL_HIGH_BIT); - } else { - glDisable(GL_STENCIL_TEST); - glStencilFunc(GL_ALWAYS, 0, 0xff); - } - -#ifdef QT_GL_NO_SCISSOR_TEST - currentScissorBounds = QRect(0, 0, width, height); -#else - QRect bounds = q->state()->rectangleClip; - if (!q->state()->clipEnabled) { - if (useSystemClip) - bounds = systemClip.boundingRect(); - else - bounds = QRect(0, 0, width, height); - } else { - if (useSystemClip) - bounds = bounds.intersected(systemClip.boundingRect()); - else - bounds = bounds.intersected(QRect(0, 0, width, height)); - } - - currentScissorBounds = bounds; - - if (bounds == QRect(0, 0, width, height)) { - glDisable(GL_SCISSOR_TEST); - } else { - glEnable(GL_SCISSOR_TEST); - setScissor(bounds); - } -#endif -} - -void QGL2PaintEngineExPrivate::setScissor(const QRect &rect) -{ - const int left = rect.left(); - const int width = rect.width(); - int bottom = height - (rect.top() + rect.height()); - if (device->isFlipped()) { - bottom = rect.top(); - } - const int height = rect.height(); - - glScissor(left, bottom, width, height); -} - -void QGL2PaintEngineEx::clipEnabledChanged() -{ - Q_D(QGL2PaintEngineEx); - - state()->clipChanged = true; - - if (painter()->hasClipping()) - d->regenerateClip(); - else - d->systemStateChanged(); -} - -void QGL2PaintEngineExPrivate::clearClip(uint value) -{ - dirtyStencilRegion -= currentScissorBounds; - - glStencilMask(0xff); - glClearStencil(value); - glClear(GL_STENCIL_BUFFER_BIT); - glStencilMask(0x0); - - q->state()->needsClipBufferClear = false; -} - -void QGL2PaintEngineExPrivate::writeClip(const QVectorPath &path, uint value) -{ - transferMode(BrushDrawingMode); - - if (snapToPixelGrid) { - snapToPixelGrid = false; - matrixDirty = true; - } - - if (matrixDirty) - updateMatrix(); - - stencilClean = false; - - const bool singlePass = !path.hasWindingFill() - && (((q->state()->currentClip == maxClip - 1) && q->state()->clipTestEnabled) - || q->state()->needsClipBufferClear); - const uint referenceClipValue = q->state()->needsClipBufferClear ? 1 : q->state()->currentClip; - - if (q->state()->needsClipBufferClear) - clearClip(1); - - if (path.isEmpty()) { - glEnable(GL_STENCIL_TEST); - glStencilFunc(GL_LEQUAL, value, ~GL_STENCIL_HIGH_BIT); - return; - } - - if (q->state()->clipTestEnabled) - glStencilFunc(GL_LEQUAL, q->state()->currentClip, ~GL_STENCIL_HIGH_BIT); - else - glStencilFunc(GL_ALWAYS, 0, 0xff); - - vertexCoordinateArray.clear(); - vertexCoordinateArray.addPath(path, inverseScale, false); - - if (!singlePass) - fillStencilWithVertexArray(vertexCoordinateArray, path.hasWindingFill()); - - glColorMask(false, false, false, false); - glEnable(GL_STENCIL_TEST); - useSimpleShader(); - - if (singlePass) { - // Under these conditions we can set the new stencil value in a single - // pass, by using the current value and the "new value" as the toggles - - glStencilFunc(GL_LEQUAL, referenceClipValue, ~GL_STENCIL_HIGH_BIT); - glStencilOp(GL_KEEP, GL_INVERT, GL_INVERT); - glStencilMask(value ^ referenceClipValue); - - drawVertexArrays(vertexCoordinateArray, GL_TRIANGLE_FAN); - } else { - glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); - glStencilMask(0xff); - - if (!q->state()->clipTestEnabled && path.hasWindingFill()) { - // Pass when any clip bit is set, set high bit - glStencilFunc(GL_NOTEQUAL, GL_STENCIL_HIGH_BIT, ~GL_STENCIL_HIGH_BIT); - composite(vertexCoordinateArray.boundingRect()); - } - - // Pass when high bit is set, replace stencil value with new clip value - glStencilFunc(GL_NOTEQUAL, value, GL_STENCIL_HIGH_BIT); - - composite(vertexCoordinateArray.boundingRect()); - } - - glStencilFunc(GL_LEQUAL, value, ~GL_STENCIL_HIGH_BIT); - glStencilMask(0); - - glColorMask(true, true, true, true); -} - -void QGL2PaintEngineEx::clip(const QVectorPath &path, Qt::ClipOperation op) -{ -// qDebug("QGL2PaintEngineEx::clip()"); - Q_D(QGL2PaintEngineEx); - - state()->clipChanged = true; - - ensureActive(); - - if (op == Qt::ReplaceClip) { - op = Qt::IntersectClip; - if (d->hasClipOperations()) { - d->systemStateChanged(); - state()->canRestoreClip = false; - } - } - -#ifndef QT_GL_NO_SCISSOR_TEST - if (!path.isEmpty() && op == Qt::IntersectClip && (path.shape() == QVectorPath::RectangleHint)) { - const QPointF* const points = reinterpret_cast<const QPointF*>(path.points()); - QRectF rect(points[0], points[2]); - - if (state()->matrix.type() <= QTransform::TxScale - || (state()->matrix.type() == QTransform::TxRotate - && qFuzzyIsNull(state()->matrix.m11()) - && qFuzzyIsNull(state()->matrix.m22()))) - { - state()->rectangleClip = state()->rectangleClip.intersected(state()->matrix.mapRect(rect).toRect()); - d->updateClipScissorTest(); - return; - } - } -#endif - - const QRect pathRect = state()->matrix.mapRect(path.controlPointRect()).toAlignedRect(); - - switch (op) { - case Qt::NoClip: - if (d->useSystemClip) { - state()->clipTestEnabled = true; - state()->currentClip = 1; - } else { - state()->clipTestEnabled = false; - } - state()->rectangleClip = QRect(0, 0, d->width, d->height); - state()->canRestoreClip = false; - d->updateClipScissorTest(); - break; - case Qt::IntersectClip: - state()->rectangleClip = state()->rectangleClip.intersected(pathRect); - d->updateClipScissorTest(); - d->resetClipIfNeeded(); - ++d->maxClip; - d->writeClip(path, d->maxClip); - state()->currentClip = d->maxClip; - state()->clipTestEnabled = true; - break; - default: - break; - } -} - -void QGL2PaintEngineExPrivate::regenerateClip() -{ - systemStateChanged(); - replayClipOperations(); -} - -void QGL2PaintEngineExPrivate::systemStateChanged() -{ - Q_Q(QGL2PaintEngineEx); - - q->state()->clipChanged = true; - - if (systemClip.isEmpty()) { - useSystemClip = false; - } else { - if (q->paintDevice()->devType() == QInternal::Widget && currentClipDevice) { - QWidgetPrivate *widgetPrivate = qt_widget_private(static_cast<QWidget *>(currentClipDevice)->window()); - useSystemClip = widgetPrivate->extra && widgetPrivate->extra->inRenderWithPainter; - } else { - useSystemClip = true; - } - } - - q->state()->clipTestEnabled = false; - q->state()->needsClipBufferClear = true; - - q->state()->currentClip = 1; - maxClip = 1; - - q->state()->rectangleClip = useSystemClip ? systemClip.boundingRect() : QRect(0, 0, width, height); - updateClipScissorTest(); - - if (systemClip.rectCount() == 1) { - if (systemClip.boundingRect() == QRect(0, 0, width, height)) - useSystemClip = false; -#ifndef QT_GL_NO_SCISSOR_TEST - // scissoring takes care of the system clip - return; -#endif - } - - if (useSystemClip) { - clearClip(0); - - QPainterPath path; - path.addRegion(systemClip); - - q->state()->currentClip = 0; - writeClip(qtVectorPathForPath(q->state()->matrix.inverted().map(path)), 1); - q->state()->currentClip = 1; - q->state()->clipTestEnabled = true; - } -} - -void QGL2PaintEngineEx::setTranslateZ(GLfloat z) -{ - Q_D(QGL2PaintEngineEx); - if (d->translateZ != z) { - d->translateZ = z; - d->translateZUniformDirty = true; - } -} - -void QGL2PaintEngineEx::setState(QPainterState *new_state) -{ - // qDebug("QGL2PaintEngineEx::setState()"); - - Q_D(QGL2PaintEngineEx); - - QGL2PaintEngineState *s = static_cast<QGL2PaintEngineState *>(new_state); - QGL2PaintEngineState *old_state = state(); - - QPaintEngineEx::setState(s); - - if (s->isNew) { - // Newly created state object. The call to setState() - // will either be followed by a call to begin(), or we are - // setting the state as part of a save(). - s->isNew = false; - return; - } - - // Setting the state as part of a restore(). - - if (old_state == s || old_state->renderHintsChanged) - renderHintsChanged(); - - if (old_state == s || old_state->matrixChanged) - d->matrixDirty = true; - - if (old_state == s || old_state->compositionModeChanged) - d->compositionModeDirty = true; - - if (old_state == s || old_state->opacityChanged) - d->opacityUniformDirty = true; - - if (old_state == s || old_state->clipChanged) { - if (old_state && old_state != s && old_state->canRestoreClip) { - d->updateClipScissorTest(); - d->glDepthFunc(GL_LEQUAL); - } else { - d->regenerateClip(); - } - } -} - -QPainterState *QGL2PaintEngineEx::createState(QPainterState *orig) const -{ - if (orig) - const_cast<QGL2PaintEngineEx *>(this)->ensureActive(); - - QGL2PaintEngineState *s; - if (!orig) - s = new QGL2PaintEngineState(); - else - s = new QGL2PaintEngineState(*static_cast<QGL2PaintEngineState *>(orig)); - - s->matrixChanged = false; - s->compositionModeChanged = false; - s->opacityChanged = false; - s->renderHintsChanged = false; - s->clipChanged = false; - - return s; -} - -QGL2PaintEngineState::QGL2PaintEngineState(QGL2PaintEngineState &other) - : QPainterState(other) -{ - isNew = true; - needsClipBufferClear = other.needsClipBufferClear; - clipTestEnabled = other.clipTestEnabled; - currentClip = other.currentClip; - canRestoreClip = other.canRestoreClip; - rectangleClip = other.rectangleClip; -} - -QGL2PaintEngineState::QGL2PaintEngineState() -{ - isNew = true; - needsClipBufferClear = true; - clipTestEnabled = false; - canRestoreClip = true; -} - -QGL2PaintEngineState::~QGL2PaintEngineState() -{ -} - -QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h deleted file mode 100644 index 762aac2f65..0000000000 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h +++ /dev/null @@ -1,334 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QPAINTENGINEEX_OPENGL2_P_H -#define QPAINTENGINEEX_OPENGL2_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QDebug> - -#include <private/qpaintengineex_p.h> -#include <private/qglengineshadermanager_p.h> -#include <private/qgl2pexvertexarray_p.h> -#include <private/qglpaintdevice_p.h> -#include <private/qfontengine_p.h> -#include <private/qdatabuffer_p.h> -#include <private/qtriangulatingstroker_p.h> -#include <private/qopenglextensions_p.h> - -enum EngineMode { - ImageDrawingMode, - TextDrawingMode, - BrushDrawingMode, - ImageArrayDrawingMode -}; - -QT_BEGIN_NAMESPACE - -#define GL_STENCIL_HIGH_BIT GLuint(0x80) -#define QT_BRUSH_TEXTURE_UNIT GLuint(0) -#define QT_IMAGE_TEXTURE_UNIT GLuint(0) //Can be the same as brush texture unit -#define QT_MASK_TEXTURE_UNIT GLuint(1) -#define QT_BACKGROUND_TEXTURE_UNIT GLuint(2) - -class QGL2PaintEngineExPrivate; - - -class QGL2PaintEngineState : public QPainterState -{ -public: - QGL2PaintEngineState(QGL2PaintEngineState &other); - QGL2PaintEngineState(); - ~QGL2PaintEngineState(); - - uint isNew : 1; - uint needsClipBufferClear : 1; - uint clipTestEnabled : 1; - uint canRestoreClip : 1; - uint matrixChanged : 1; - uint compositionModeChanged : 1; - uint opacityChanged : 1; - uint renderHintsChanged : 1; - uint clipChanged : 1; - uint currentClip : 8; - - QRect rectangleClip; -}; - -class Q_OPENGL_EXPORT QGL2PaintEngineEx : public QPaintEngineEx -{ - Q_DECLARE_PRIVATE(QGL2PaintEngineEx) -public: - QGL2PaintEngineEx(); - ~QGL2PaintEngineEx(); - - bool begin(QPaintDevice *device) override; - void ensureActive(); - bool end() override; - - virtual void clipEnabledChanged() override; - virtual void penChanged() override; - virtual void brushChanged() override; - virtual void brushOriginChanged() override; - virtual void opacityChanged() override; - virtual void compositionModeChanged() override; - virtual void renderHintsChanged() override; - virtual void transformChanged() override; - - virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) override; - virtual void drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, - QPainter::PixmapFragmentHints hints) override; - virtual void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr, - Qt::ImageConversionFlags flags = Qt::AutoColor) override; - virtual void drawTextItem(const QPointF &p, const QTextItem &textItem) override; - virtual void fill(const QVectorPath &path, const QBrush &brush) override; - virtual void stroke(const QVectorPath &path, const QPen &pen) override; - virtual void clip(const QVectorPath &path, Qt::ClipOperation op) override; - - virtual void drawStaticTextItem(QStaticTextItem *textItem) override; - - bool drawTexture(const QRectF &r, GLuint textureId, const QSize &size, const QRectF &sr); - - Type type() const override { return OpenGL2; } - - virtual void setState(QPainterState *s) override; - virtual QPainterState *createState(QPainterState *orig) const override; - inline QGL2PaintEngineState *state() { - return static_cast<QGL2PaintEngineState *>(QPaintEngineEx::state()); - } - inline const QGL2PaintEngineState *state() const { - return static_cast<const QGL2PaintEngineState *>(QPaintEngineEx::state()); - } - - void beginNativePainting() override; - void endNativePainting() override; - - void invalidateState(); - - void setRenderTextActive(bool); - - bool isNativePaintingActive() const; - bool requiresPretransformedGlyphPositions(QFontEngine *, const QTransform &) const override { return false; } - bool shouldDrawCachedGlyphs(QFontEngine *, const QTransform &) const override; - - void setTranslateZ(GLfloat z); - -private: - Q_DISABLE_COPY_MOVE(QGL2PaintEngineEx) -}; - -class QGL2PaintEngineExPrivate : public QPaintEngineExPrivate, protected QOpenGLExtensions -{ - Q_DECLARE_PUBLIC(QGL2PaintEngineEx) -public: - enum StencilFillMode { - OddEvenFillMode, - WindingFillMode, - TriStripStrokeFillMode - }; - - QGL2PaintEngineExPrivate(QGL2PaintEngineEx *q_ptr) : - q(q_ptr), - shaderManager(nullptr), - width(0), height(0), - ctx(nullptr), - useSystemClip(true), - elementIndicesVBOId(0), - opacityArray(0), - snapToPixelGrid(false), - nativePaintingActive(false), - inverseScale(1), - lastMaskTextureUsed(0), - translateZ(0) - { } - - ~QGL2PaintEngineExPrivate(); - - void updateBrushTexture(); - void updateBrushUniforms(); - void updateMatrix(); - void updateCompositionMode(); - void updateTextureFilter(GLenum target, GLenum wrapMode, bool smoothPixmapTransform, GLuint id = GLuint(-1)); - - void resetGLState(); - bool resetOpenGLContextActiveEngine(); - - // fill, stroke, drawTexture, drawPixmaps & drawCachedGlyphs are the main rendering entry-points, - // however writeClip can also be thought of as en entry point as it does similar things. - void fill(const QVectorPath &path); - void stroke(const QVectorPath &path, const QPen &pen); - void drawTexture(const QGLRect& dest, const QGLRect& src, const QSize &textureSize, bool opaque, bool pattern = false); - void drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, - QPainter::PixmapFragmentHints hints); - void drawCachedGlyphs(QFontEngine::GlyphFormat glyphFormat, QStaticTextItem *staticTextItem); - - // Calls glVertexAttributePointer if the pointer has changed - inline void setVertexAttributePointer(unsigned int arrayIndex, const GLfloat *pointer); - - // draws whatever is in the vertex array: - void drawVertexArrays(const float *data, int *stops, int stopCount, GLenum primitive); - void drawVertexArrays(QGL2PEXVertexArray &vertexArray, GLenum primitive) { - drawVertexArrays((const float *) vertexArray.data(), vertexArray.stops(), vertexArray.stopCount(), primitive); - } - - // Composites the bounding rect onto dest buffer: - void composite(const QGLRect& boundingRect); - - // Calls drawVertexArrays to render into stencil buffer: - void fillStencilWithVertexArray(const float *data, int count, int *stops, int stopCount, const QGLRect &bounds, StencilFillMode mode); - void fillStencilWithVertexArray(QGL2PEXVertexArray& vertexArray, bool useWindingFill) { - fillStencilWithVertexArray((const float *) vertexArray.data(), 0, vertexArray.stops(), vertexArray.stopCount(), - vertexArray.boundingRect(), - useWindingFill ? WindingFillMode : OddEvenFillMode); - } - - void setBrush(const QBrush& brush); - void transferMode(EngineMode newMode); - bool prepareForDraw(bool srcPixelsAreOpaque); // returns true if the program has changed - bool prepareForCachedGlyphDraw(const QFontEngineGlyphCache &cache); - inline void useSimpleShader(); - inline GLuint location(const QGLEngineShaderManager::Uniform uniform) { - return shaderManager->getUniformLocation(uniform); - } - - void clearClip(uint value); - void writeClip(const QVectorPath &path, uint value); - void resetClipIfNeeded(); - - void updateClipScissorTest(); - void setScissor(const QRect &rect); - void regenerateClip(); - void systemStateChanged() override; - - - static QGLEngineShaderManager* shaderManagerForEngine(QGL2PaintEngineEx *engine) { return engine->d_func()->shaderManager; } - static QGL2PaintEngineExPrivate *getData(QGL2PaintEngineEx *engine) { return engine->d_func(); } - static void cleanupVectorPath(QPaintEngineEx *engine, void *data); - - - QGL2PaintEngineEx* q; - QGLEngineShaderManager* shaderManager; - QGLPaintDevice* device; - int width, height; - QGLContext *ctx; - EngineMode mode; - QFontEngine::GlyphFormat glyphCacheFormat; - - // Dirty flags - bool matrixDirty; // Implies matrix uniforms are also dirty - bool compositionModeDirty; - bool brushTextureDirty; - bool brushUniformsDirty; - bool opacityUniformDirty; - bool matrixUniformDirty; - bool translateZUniformDirty; - - bool stencilClean; // Has the stencil not been used for clipping so far? - bool useSystemClip; - QRegion dirtyStencilRegion; - QRect currentScissorBounds; - uint maxClip; - - QBrush currentBrush; // May not be the state's brush! - const QBrush noBrush; - - QPixmap currentBrushPixmap; - - QGL2PEXVertexArray vertexCoordinateArray; - QGL2PEXVertexArray textureCoordinateArray; - QVector<GLushort> elementIndices; - GLuint elementIndicesVBOId; - QDataBuffer<GLfloat> opacityArray; - GLfloat staticVertexCoordinateArray[8]; - GLfloat staticTextureCoordinateArray[8]; - - bool snapToPixelGrid; - bool nativePaintingActive; - GLfloat pmvMatrix[3][3]; - GLfloat inverseScale; - - GLuint lastTextureUsed; - GLuint lastMaskTextureUsed; - - bool needsSync; - bool multisamplingAlwaysEnabled; - - GLfloat depthRange[2]; - - float textureInvertedY; - - QTriangulatingStroker stroker; - QDashedStrokeProcessor dasher; - - QSet<QVectorPath::CacheEntry *> pathCaches; - QVector<GLuint> unusedVBOSToClean; - QVector<GLuint> unusedIBOSToClean; - - const GLfloat *vertexAttribPointers[3]; - - GLfloat translateZ; -}; - - -void QGL2PaintEngineExPrivate::setVertexAttributePointer(unsigned int arrayIndex, const GLfloat *pointer) -{ - Q_ASSERT(arrayIndex < 3); - if (pointer == vertexAttribPointers[arrayIndex]) - return; - - vertexAttribPointers[arrayIndex] = pointer; - if (arrayIndex == QT_OPACITY_ATTR) - glVertexAttribPointer(arrayIndex, 1, GL_FLOAT, GL_FALSE, 0, pointer); - else - glVertexAttribPointer(arrayIndex, 2, GL_FLOAT, GL_FALSE, 0, pointer); -} - -QT_END_NAMESPACE - -#endif // QPAINTENGINEEX_OPENGL2_P_H diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp deleted file mode 100644 index d5ce4efd1a..0000000000 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp +++ /dev/null @@ -1,414 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qtextureglyphcache_gl_p.h" -#include "qpaintengineex_opengl2_p.h" -#include "qglfunctions.h" -#include "private/qglengineshadersource_p.h" - -QT_BEGIN_NAMESPACE - - -static int next_qgltextureglyphcache_serial_number() -{ - static QBasicAtomicInt serial = Q_BASIC_ATOMIC_INITIALIZER(0); - return 1 + serial.fetchAndAddRelaxed(1); -} - -QGLTextureGlyphCache::QGLTextureGlyphCache(QFontEngine::GlyphFormat format, const QTransform &matrix) - : QImageTextureGlyphCache(format, matrix) - , m_textureResource(0) - , pex(0) - , m_blitProgram(0) - , m_filterMode(Nearest) - , m_serialNumber(next_qgltextureglyphcache_serial_number()) -{ -#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - qDebug(" -> QGLTextureGlyphCache() %p for context %p.", this, QOpenGLContext::currentContext()); -#endif - m_vertexCoordinateArray[0] = -1.0f; - m_vertexCoordinateArray[1] = -1.0f; - m_vertexCoordinateArray[2] = 1.0f; - m_vertexCoordinateArray[3] = -1.0f; - m_vertexCoordinateArray[4] = 1.0f; - m_vertexCoordinateArray[5] = 1.0f; - m_vertexCoordinateArray[6] = -1.0f; - m_vertexCoordinateArray[7] = 1.0f; - - m_textureCoordinateArray[0] = 0.0f; - m_textureCoordinateArray[1] = 0.0f; - m_textureCoordinateArray[2] = 1.0f; - m_textureCoordinateArray[3] = 0.0f; - m_textureCoordinateArray[4] = 1.0f; - m_textureCoordinateArray[5] = 1.0f; - m_textureCoordinateArray[6] = 0.0f; - m_textureCoordinateArray[7] = 1.0f; -} - -QGLTextureGlyphCache::~QGLTextureGlyphCache() -{ -#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - qDebug(" -> ~QGLTextureGlyphCache() %p.", this); -#endif - delete m_blitProgram; - if (m_textureResource) - m_textureResource->free(); -} - -void QGLTextureGlyphCache::createTextureData(int width, int height) -{ - QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); - if (ctx == 0) { - qWarning("QGLTextureGlyphCache::createTextureData: Called with no context"); - return; - } - QOpenGLFunctions *funcs = ctx->contextHandle()->functions(); - - // create in QImageTextureGlyphCache baseclass is meant to be called - // only to create the initial image and does not preserve the content, - // so we don't call when this function is called from resize. - if ((!QGLFramebufferObject::hasOpenGLFramebufferObjects() || ctx->d_ptr->workaround_brokenFBOReadBack) && image().isNull()) - QImageTextureGlyphCache::createTextureData(width, height); - - // Make the lower glyph texture size 16 x 16. - if (width < 16) - width = 16; - if (height < 16) - height = 16; - - if (m_textureResource && !m_textureResource->m_texture) { - delete m_textureResource; - m_textureResource = 0; - } - - if (!m_textureResource) - m_textureResource = new QGLGlyphTexture(ctx); - - funcs->glGenTextures(1, &m_textureResource->m_texture); - funcs->glBindTexture(GL_TEXTURE_2D, m_textureResource->m_texture); - - m_textureResource->m_width = width; - m_textureResource->m_height = height; - - if (m_format == QFontEngine::Format_A32) { - QVarLengthArray<uchar> data(width * height * 4); - for (int i = 0; i < data.size(); ++i) - data[i] = 0; - funcs->glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, &data[0]); - } else { - QVarLengthArray<uchar> data(width * height); - for (int i = 0; i < data.size(); ++i) - data[i] = 0; - funcs->glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, width, height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, &data[0]); - } - - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - m_filterMode = Nearest; -} - -void QGLTextureGlyphCache::resizeTextureData(int width, int height) -{ - QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); - if (ctx == 0) { - qWarning("QGLTextureGlyphCache::resizeTextureData: Called with no context"); - return; - } - QOpenGLFunctions *funcs = ctx->contextHandle()->functions(); - - int oldWidth = m_textureResource->m_width; - int oldHeight = m_textureResource->m_height; - - // Make the lower glyph texture size 16 x 16. - if (width < 16) - width = 16; - if (height < 16) - height = 16; - - GLuint oldTexture = m_textureResource->m_texture; - createTextureData(width, height); - - if (!QGLFramebufferObject::hasOpenGLFramebufferObjects() || ctx->d_ptr->workaround_brokenFBOReadBack) { - QImageTextureGlyphCache::resizeTextureData(width, height); - Q_ASSERT(image().depth() == 8); - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, oldHeight, GL_ALPHA, GL_UNSIGNED_BYTE, image().constBits()); - funcs->glDeleteTextures(1, &oldTexture); - return; - } - - // ### the QTextureGlyphCache API needs to be reworked to allow - // ### resizeTextureData to fail - - ctx->d_ptr->refreshCurrentFbo(); - - funcs->glBindFramebuffer(GL_FRAMEBUFFER, m_textureResource->m_fbo); - - GLuint tmp_texture; - funcs->glGenTextures(1, &tmp_texture); - funcs->glBindTexture(GL_TEXTURE_2D, tmp_texture); - funcs->glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, oldWidth, oldHeight, 0, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - m_filterMode = Nearest; - funcs->glBindTexture(GL_TEXTURE_2D, 0); - funcs->glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, - GL_TEXTURE_2D, tmp_texture, 0); - - funcs->glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); - funcs->glBindTexture(GL_TEXTURE_2D, oldTexture); - - if (pex != 0) - pex->transferMode(BrushDrawingMode); - - funcs->glDisable(GL_STENCIL_TEST); - funcs->glDisable(GL_DEPTH_TEST); - funcs->glDisable(GL_SCISSOR_TEST); - funcs->glDisable(GL_BLEND); - - funcs->glViewport(0, 0, oldWidth, oldHeight); - - QGLShaderProgram *blitProgram = 0; - if (pex == 0) { - if (m_blitProgram == 0) { - m_blitProgram = new QGLShaderProgram(ctx); - - { - QString source; - source.append(QLatin1String(qglslMainWithTexCoordsVertexShader)); - source.append(QLatin1String(qglslUntransformedPositionVertexShader)); - - QGLShader *vertexShader = new QGLShader(QGLShader::Vertex, m_blitProgram); - vertexShader->compileSourceCode(source); - - m_blitProgram->addShader(vertexShader); - } - - { - QString source; - source.append(QLatin1String(qglslMainFragmentShader)); - source.append(QLatin1String(qglslImageSrcFragmentShader)); - - QGLShader *fragmentShader = new QGLShader(QGLShader::Fragment, m_blitProgram); - fragmentShader->compileSourceCode(source); - - m_blitProgram->addShader(fragmentShader); - } - - m_blitProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - m_blitProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); - - m_blitProgram->link(); - } - - funcs->glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, m_vertexCoordinateArray); - funcs->glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, m_textureCoordinateArray); - - m_blitProgram->bind(); - m_blitProgram->enableAttributeArray(int(QT_VERTEX_COORDS_ATTR)); - m_blitProgram->enableAttributeArray(int(QT_TEXTURE_COORDS_ATTR)); - m_blitProgram->disableAttributeArray(int(QT_OPACITY_ATTR)); - - blitProgram = m_blitProgram; - - } else { - pex->setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, m_vertexCoordinateArray); - pex->setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, m_textureCoordinateArray); - - pex->shaderManager->useBlitProgram(); - blitProgram = pex->shaderManager->blitProgram(); - } - - blitProgram->setUniformValue("imageTexture", QT_IMAGE_TEXTURE_UNIT); - - funcs->glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - - funcs->glBindTexture(GL_TEXTURE_2D, m_textureResource->m_texture); - - funcs->glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, oldWidth, oldHeight); - - funcs->glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, - GL_RENDERBUFFER, 0); - funcs->glDeleteTextures(1, &tmp_texture); - funcs->glDeleteTextures(1, &oldTexture); - - funcs->glBindFramebuffer(GL_FRAMEBUFFER, ctx->d_ptr->current_fbo); - - if (pex != 0) { - funcs->glViewport(0, 0, pex->width, pex->height); - pex->updateClipScissorTest(); - } -} - -void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition) -{ - QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); - if (ctx == 0) { - qWarning("QGLTextureGlyphCache::fillTexture: Called with no context"); - return; - } - QOpenGLFunctions *funcs = ctx->contextHandle()->functions(); - - if (!QGLFramebufferObject::hasOpenGLFramebufferObjects() || ctx->d_ptr->workaround_brokenFBOReadBack) { - QImageTextureGlyphCache::fillTexture(c, glyph, subPixelPosition); - - funcs->glBindTexture(GL_TEXTURE_2D, m_textureResource->m_texture); - const QImage &texture = image(); - const uchar *bits = texture.constBits(); - bits += c.y * texture.bytesPerLine() + c.x; - for (int i=0; i<c.h; ++i) { - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y + i, c.w, 1, GL_ALPHA, GL_UNSIGNED_BYTE, bits); - bits += texture.bytesPerLine(); - } - return; - } - - QImage mask = textureMapForGlyph(glyph, subPixelPosition); - const int maskWidth = mask.width(); - const int maskHeight = mask.height(); - - if (mask.format() == QImage::Format_Mono) { - mask = mask.convertToFormat(QImage::Format_Indexed8); - for (int y = 0; y < maskHeight; ++y) { - uchar *src = (uchar *) mask.scanLine(y); - for (int x = 0; x < maskWidth; ++x) - src[x] = -src[x]; // convert 0 and 1 into 0 and 255 - } - } else if (mask.depth() == 32) { - // Make the alpha component equal to the average of the RGB values. - // This is needed when drawing sub-pixel antialiased text on translucent targets. - for (int y = 0; y < maskHeight; ++y) { - quint32 *src = (quint32 *) mask.scanLine(y); - for (int x = 0; x < maskWidth; ++x) { - int r = qRed(src[x]); - int g = qGreen(src[x]); - int b = qBlue(src[x]); - int avg; - if (mask.format() == QImage::Format_RGB32) - avg = (r + g + b + 1) / 3; // "+1" for rounding. - else // Format_ARGB_Premultiplied - avg = qAlpha(src[x]); - if (ctx->contextHandle()->isOpenGLES()) { - // swizzle the bits to accommodate for the GL_RGBA upload. - src[x] = (avg << 24) | (r << 0) | (g << 8) | (b << 16); - } else { - src[x] = (src[x] & 0x00ffffff) | (avg << 24); - } - } - } - } - - funcs->glBindTexture(GL_TEXTURE_2D, m_textureResource->m_texture); - if (mask.depth() == 32) { - GLenum format = GL_RGBA; -#if !defined(QT_OPENGL_ES_2) - if (!ctx->contextHandle()->isOpenGLES()) - format = GL_BGRA; -#endif - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y, maskWidth, maskHeight, format, GL_UNSIGNED_BYTE, mask.bits()); - } else { - // glTexSubImage2D() might cause some garbage to appear in the texture if the mask width is - // not a multiple of four bytes. The bug appeared on a computer with 32-bit Windows Vista - // and nVidia GeForce 8500GT. GL_UNPACK_ALIGNMENT is set to four bytes, 'mask' has a - // multiple of four bytes per line, and most of the glyph shows up correctly in the - // texture, which makes me think that this is a driver bug. - // One workaround is to make sure the mask width is a multiple of four bytes, for instance - // by converting it to a format with four bytes per pixel. Another is to copy one line at a - // time. - - if (!ctx->d_ptr->workaround_brokenAlphaTexSubImage_init) { - // don't know which driver versions exhibit this bug, so be conservative for now - const QByteArray vendorString(reinterpret_cast<const char*>(funcs->glGetString(GL_VENDOR))); - ctx->d_ptr->workaround_brokenAlphaTexSubImage = vendorString.indexOf("NVIDIA") >= 0; - ctx->d_ptr->workaround_brokenAlphaTexSubImage_init = true; - } - - if (ctx->d_ptr->workaround_brokenAlphaTexSubImage) { - for (int i = 0; i < maskHeight; ++i) - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y + i, maskWidth, 1, GL_ALPHA, GL_UNSIGNED_BYTE, mask.scanLine(i)); - } else { - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y, maskWidth, maskHeight, GL_ALPHA, GL_UNSIGNED_BYTE, mask.bits()); - } - } -} - -int QGLTextureGlyphCache::glyphPadding() const -{ - return 1; -} - -int QGLTextureGlyphCache::maxTextureWidth() const -{ - QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); - if (ctx == 0) - return QImageTextureGlyphCache::maxTextureWidth(); - else - return ctx->d_ptr->maxTextureSize(); -} - -int QGLTextureGlyphCache::maxTextureHeight() const -{ - QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); - if (ctx == 0) - return QImageTextureGlyphCache::maxTextureHeight(); - - if (ctx->d_ptr->workaround_brokenTexSubImage) - return qMin(1024, ctx->d_ptr->maxTextureSize()); - else - return ctx->d_ptr->maxTextureSize(); -} - -void QGLTextureGlyphCache::clear() -{ - m_textureResource->free(); - m_textureResource = 0; - - m_w = 0; - m_h = 0; - m_cx = 0; - m_cy = 0; - m_currentRowHeight = 0; - coords.clear(); -} - -QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h deleted file mode 100644 index 7c12ce8998..0000000000 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h +++ /dev/null @@ -1,171 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QTEXTUREGLYPHCACHE_GL_P_H -#define QTEXTUREGLYPHCACHE_GL_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <private/qtextureglyphcache_p.h> -#include <private/qgl_p.h> -#include <qglshaderprogram.h> -#include <qglframebufferobject.h> -#include <qopenglfunctions.h> - -// #define QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - -QT_BEGIN_NAMESPACE - -class QGL2PaintEngineExPrivate; - -struct QGLGlyphTexture : public QOpenGLSharedResource -{ - QGLGlyphTexture(const QGLContext *ctx) - : QOpenGLSharedResource(ctx->contextHandle()->shareGroup()) - , m_fbo(0) - , m_width(0) - , m_height(0) - { - if (ctx && QGLFramebufferObject::hasOpenGLFramebufferObjects() && !ctx->d_ptr->workaround_brokenFBOReadBack) - ctx->contextHandle()->functions()->glGenFramebuffers(1, &m_fbo); - -#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - qDebug(" -> QGLGlyphTexture() %p for context %p.", this, ctx); -#endif - } - - void freeResource(QOpenGLContext *context) override - { - const QGLContext *ctx = QGLContext::fromOpenGLContext(context); -#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - qDebug("~QGLGlyphTexture() %p for context %p.", this, ctx); -#else - Q_UNUSED(ctx); -#endif - if (ctx && m_fbo) - ctx->contextHandle()->functions()->glDeleteFramebuffers(1, &m_fbo); - if (m_width || m_height) - ctx->contextHandle()->functions()->glDeleteTextures(1, &m_texture); - } - - void invalidateResource() override - { - m_texture = 0; - m_fbo = 0; - m_width = 0; - m_height = 0; - } - - GLuint m_texture; - GLuint m_fbo; - int m_width; - int m_height; -}; - -class Q_OPENGL_EXPORT QGLTextureGlyphCache : public QImageTextureGlyphCache -{ -public: - QGLTextureGlyphCache(QFontEngine::GlyphFormat format, const QTransform &matrix); - ~QGLTextureGlyphCache(); - - virtual void createTextureData(int width, int height) override; - virtual void resizeTextureData(int width, int height) override; - virtual void fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition) override; - virtual int glyphPadding() const override; - virtual int maxTextureWidth() const override; - virtual int maxTextureHeight() const override; - - inline GLuint texture() const { - QGLTextureGlyphCache *that = const_cast<QGLTextureGlyphCache *>(this); - QGLGlyphTexture *glyphTexture = that->m_textureResource; - return glyphTexture ? glyphTexture->m_texture : 0; - } - - inline int width() const { - QGLTextureGlyphCache *that = const_cast<QGLTextureGlyphCache *>(this); - QGLGlyphTexture *glyphTexture = that->m_textureResource; - return glyphTexture ? glyphTexture->m_width : 0; - } - inline int height() const { - QGLTextureGlyphCache *that = const_cast<QGLTextureGlyphCache *>(this); - QGLGlyphTexture *glyphTexture = that->m_textureResource; - return glyphTexture ? glyphTexture->m_height : 0; - } - - inline void setPaintEnginePrivate(QGL2PaintEngineExPrivate *p) { pex = p; } - - inline const QOpenGLContextGroup *contextGroup() const { return m_textureResource ? m_textureResource->group() : nullptr; } - - inline int serialNumber() const { return m_serialNumber; } - - enum FilterMode { - Nearest, - Linear - }; - FilterMode filterMode() const { return m_filterMode; } - void setFilterMode(FilterMode m) { m_filterMode = m; } - - void clear(); - -private: - QGLGlyphTexture *m_textureResource; - - QGL2PaintEngineExPrivate *pex; - QGLShaderProgram *m_blitProgram; - FilterMode m_filterMode; - - GLfloat m_vertexCoordinateArray[8]; - GLfloat m_textureCoordinateArray[8]; - - int m_serialNumber; -}; - -QT_END_NAMESPACE - -#endif - |