diff options
Diffstat (limited to 'src/gui/opengl/qopenglengineshadermanager.cpp')
| -rw-r--r-- | src/gui/opengl/qopenglengineshadermanager.cpp | 898 |
1 files changed, 0 insertions, 898 deletions
diff --git a/src/gui/opengl/qopenglengineshadermanager.cpp b/src/gui/opengl/qopenglengineshadermanager.cpp deleted file mode 100644 index a569975486..0000000000 --- a/src/gui/opengl/qopenglengineshadermanager.cpp +++ /dev/null @@ -1,898 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui 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 "qopenglengineshadermanager_p.h" -#include "qopenglengineshadersource_p.h" -#include "qopenglpaintengine_p.h" -#include "qopenglshadercache_p.h" - -#include <QtGui/private/qopenglcontext_p.h> -#include <QtCore/qthreadstorage.h> - -#include <algorithm> - -#if defined(QT_DEBUG) -#include <QMetaEnum> -#endif - -// #define QT_GL_SHARED_SHADER_DEBUG - -QT_BEGIN_NAMESPACE - -class QOpenGLEngineSharedShadersResource : public QOpenGLSharedResource -{ -public: - QOpenGLEngineSharedShadersResource(QOpenGLContext *ctx) - : QOpenGLSharedResource(ctx->shareGroup()) - , m_shaders(new QOpenGLEngineSharedShaders(ctx)) - { - } - - ~QOpenGLEngineSharedShadersResource() - { - delete m_shaders; - } - - void invalidateResource() override - { - delete m_shaders; - m_shaders = nullptr; - } - - void freeResource(QOpenGLContext *) override - { - } - - QOpenGLEngineSharedShaders *shaders() const { return m_shaders; } - -private: - QOpenGLEngineSharedShaders *m_shaders; -}; - -class QOpenGLShaderStorage -{ -public: - QOpenGLEngineSharedShaders *shadersForThread(QOpenGLContext *context) { - QOpenGLMultiGroupSharedResource *&shaders = m_storage.localData(); - if (!shaders) - shaders = new QOpenGLMultiGroupSharedResource; - QOpenGLEngineSharedShadersResource *resource = - shaders->value<QOpenGLEngineSharedShadersResource>(context); - return resource ? resource->shaders() : nullptr; - } - -private: - QThreadStorage<QOpenGLMultiGroupSharedResource *> m_storage; -}; - -Q_GLOBAL_STATIC(QOpenGLShaderStorage, qt_shader_storage); - -QOpenGLEngineSharedShaders *QOpenGLEngineSharedShaders::shadersForContext(QOpenGLContext *context) -{ - return qt_shader_storage()->shadersForThread(context); -} - -const char* QOpenGLEngineSharedShaders::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 -}; - -QOpenGLEngineSharedShaders::QOpenGLEngineSharedShaders(QOpenGLContext* context) - : blitShaderProg(nullptr) - , simpleShaderProg(nullptr) -{ - -/* - 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. -*/ - - // Check if the user has requested an OpenGL 3.2 Core Profile or higher - // and if so use GLSL 1.50 core shaders instead of legacy ones. - const QSurfaceFormat &fmt = context->format(); - const bool isCoreProfile = fmt.profile() == QSurfaceFormat::CoreProfile && fmt.version() >= qMakePair(3,2); - - const char** code = qShaderSnippets; // shortcut - - if (isCoreProfile) { - code[MainVertexShader] = qopenglslMainVertexShader_core; - code[MainWithTexCoordsVertexShader] = qopenglslMainWithTexCoordsVertexShader_core; - code[MainWithTexCoordsAndOpacityVertexShader] = qopenglslMainWithTexCoordsAndOpacityVertexShader_core; - - code[UntransformedPositionVertexShader] = qopenglslUntransformedPositionVertexShader_core; - code[PositionOnlyVertexShader] = qopenglslPositionOnlyVertexShader_core; - code[ComplexGeometryPositionOnlyVertexShader] = qopenglslComplexGeometryPositionOnlyVertexShader_core; - code[PositionWithPatternBrushVertexShader] = qopenglslPositionWithPatternBrushVertexShader_core; - code[PositionWithLinearGradientBrushVertexShader] = qopenglslPositionWithLinearGradientBrushVertexShader_core; - code[PositionWithConicalGradientBrushVertexShader] = qopenglslPositionWithConicalGradientBrushVertexShader_core; - code[PositionWithRadialGradientBrushVertexShader] = qopenglslPositionWithRadialGradientBrushVertexShader_core; - code[PositionWithTextureBrushVertexShader] = qopenglslPositionWithTextureBrushVertexShader_core; - code[AffinePositionWithPatternBrushVertexShader] = qopenglslAffinePositionWithPatternBrushVertexShader_core; - code[AffinePositionWithLinearGradientBrushVertexShader] = qopenglslAffinePositionWithLinearGradientBrushVertexShader_core; - code[AffinePositionWithConicalGradientBrushVertexShader] = qopenglslAffinePositionWithConicalGradientBrushVertexShader_core; - code[AffinePositionWithRadialGradientBrushVertexShader] = qopenglslAffinePositionWithRadialGradientBrushVertexShader_core; - code[AffinePositionWithTextureBrushVertexShader] = qopenglslAffinePositionWithTextureBrushVertexShader_core; - - code[MainFragmentShader_MO] = qopenglslMainFragmentShader_MO_core; - code[MainFragmentShader_M] = qopenglslMainFragmentShader_M_core; - code[MainFragmentShader_O] = qopenglslMainFragmentShader_O_core; - code[MainFragmentShader] = qopenglslMainFragmentShader_core; - code[MainFragmentShader_ImageArrays] = qopenglslMainFragmentShader_ImageArrays_core; - - code[ImageSrcFragmentShader] = qopenglslImageSrcFragmentShader_core; - code[ImageSrcWithPatternFragmentShader] = qopenglslImageSrcWithPatternFragmentShader_core; - code[NonPremultipliedImageSrcFragmentShader] = qopenglslNonPremultipliedImageSrcFragmentShader_core; - code[GrayscaleImageSrcFragmentShader] = qopenglslGrayscaleImageSrcFragmentShader_core; - code[AlphaImageSrcFragmentShader] = qopenglslAlphaImageSrcFragmentShader_core; - code[CustomImageSrcFragmentShader] = qopenglslCustomSrcFragmentShader_core; // Calls "customShader", which must be appended - code[SolidBrushSrcFragmentShader] = qopenglslSolidBrushSrcFragmentShader_core; - - code[TextureBrushSrcFragmentShader] = qopenglslTextureBrushSrcFragmentShader_core; - code[TextureBrushSrcWithPatternFragmentShader] = qopenglslTextureBrushSrcWithPatternFragmentShader_core; - code[PatternBrushSrcFragmentShader] = qopenglslPatternBrushSrcFragmentShader_core; - code[LinearGradientBrushSrcFragmentShader] = qopenglslLinearGradientBrushSrcFragmentShader_core; - code[RadialGradientBrushSrcFragmentShader] = qopenglslRadialGradientBrushSrcFragmentShader_core; - code[ConicalGradientBrushSrcFragmentShader] = qopenglslConicalGradientBrushSrcFragmentShader_core; - code[ShockingPinkSrcFragmentShader] = qopenglslShockingPinkSrcFragmentShader_core; - - code[NoMaskFragmentShader] = ""; - code[MaskFragmentShader] = qopenglslMaskFragmentShader_core; - code[RgbMaskFragmentShaderPass1] = qopenglslRgbMaskFragmentShaderPass1_core; - code[RgbMaskFragmentShaderPass2] = qopenglslRgbMaskFragmentShaderPass2_core; - code[RgbMaskWithGammaFragmentShader] = ""; //### - } else { - code[MainVertexShader] = qopenglslMainVertexShader; - code[MainWithTexCoordsVertexShader] = qopenglslMainWithTexCoordsVertexShader; - code[MainWithTexCoordsAndOpacityVertexShader] = qopenglslMainWithTexCoordsAndOpacityVertexShader; - - code[UntransformedPositionVertexShader] = qopenglslUntransformedPositionVertexShader; - code[PositionOnlyVertexShader] = qopenglslPositionOnlyVertexShader; - code[ComplexGeometryPositionOnlyVertexShader] = qopenglslComplexGeometryPositionOnlyVertexShader; - code[PositionWithPatternBrushVertexShader] = qopenglslPositionWithPatternBrushVertexShader; - code[PositionWithLinearGradientBrushVertexShader] = qopenglslPositionWithLinearGradientBrushVertexShader; - code[PositionWithConicalGradientBrushVertexShader] = qopenglslPositionWithConicalGradientBrushVertexShader; - code[PositionWithRadialGradientBrushVertexShader] = qopenglslPositionWithRadialGradientBrushVertexShader; - code[PositionWithTextureBrushVertexShader] = qopenglslPositionWithTextureBrushVertexShader; - code[AffinePositionWithPatternBrushVertexShader] = qopenglslAffinePositionWithPatternBrushVertexShader; - code[AffinePositionWithLinearGradientBrushVertexShader] = qopenglslAffinePositionWithLinearGradientBrushVertexShader; - code[AffinePositionWithConicalGradientBrushVertexShader] = qopenglslAffinePositionWithConicalGradientBrushVertexShader; - code[AffinePositionWithRadialGradientBrushVertexShader] = qopenglslAffinePositionWithRadialGradientBrushVertexShader; - code[AffinePositionWithTextureBrushVertexShader] = qopenglslAffinePositionWithTextureBrushVertexShader; - - code[MainFragmentShader_MO] = qopenglslMainFragmentShader_MO; - code[MainFragmentShader_M] = qopenglslMainFragmentShader_M; - code[MainFragmentShader_O] = qopenglslMainFragmentShader_O; - code[MainFragmentShader] = qopenglslMainFragmentShader; - code[MainFragmentShader_ImageArrays] = qopenglslMainFragmentShader_ImageArrays; - - code[ImageSrcFragmentShader] = qopenglslImageSrcFragmentShader; - code[ImageSrcWithPatternFragmentShader] = qopenglslImageSrcWithPatternFragmentShader; - code[NonPremultipliedImageSrcFragmentShader] = qopenglslNonPremultipliedImageSrcFragmentShader; - code[GrayscaleImageSrcFragmentShader] = qopenglslGrayscaleImageSrcFragmentShader; - code[AlphaImageSrcFragmentShader] = qopenglslAlphaImageSrcFragmentShader; - code[CustomImageSrcFragmentShader] = qopenglslCustomSrcFragmentShader; // Calls "customShader", which must be appended - code[SolidBrushSrcFragmentShader] = qopenglslSolidBrushSrcFragmentShader; - code[TextureBrushSrcFragmentShader] = qopenglslTextureBrushSrcFragmentShader; - code[TextureBrushSrcWithPatternFragmentShader] = qopenglslTextureBrushSrcWithPatternFragmentShader; - code[PatternBrushSrcFragmentShader] = qopenglslPatternBrushSrcFragmentShader; - code[LinearGradientBrushSrcFragmentShader] = qopenglslLinearGradientBrushSrcFragmentShader; - code[RadialGradientBrushSrcFragmentShader] = qopenglslRadialGradientBrushSrcFragmentShader; - code[ConicalGradientBrushSrcFragmentShader] = qopenglslConicalGradientBrushSrcFragmentShader; - code[ShockingPinkSrcFragmentShader] = qopenglslShockingPinkSrcFragmentShader; - - code[NoMaskFragmentShader] = ""; - code[MaskFragmentShader] = qopenglslMaskFragmentShader; - code[RgbMaskFragmentShaderPass1] = qopenglslRgbMaskFragmentShaderPass1; - code[RgbMaskFragmentShaderPass2] = qopenglslRgbMaskFragmentShaderPass2; - code[RgbMaskWithGammaFragmentShader] = ""; //### - } - - // The composition shaders are just layout qualifiers and the same - // for all profiles that support them. - code[NoCompositionModeFragmentShader] = ""; - code[MultiplyCompositionModeFragmentShader] = qopenglslMultiplyCompositionModeFragmentShader; - code[ScreenCompositionModeFragmentShader] = qopenglslScreenCompositionModeFragmentShader; - code[OverlayCompositionModeFragmentShader] = qopenglslOverlayCompositionModeFragmentShader; - code[DarkenCompositionModeFragmentShader] = qopenglslDarkenCompositionModeFragmentShader; - code[LightenCompositionModeFragmentShader] = qopenglslLightenCompositionModeFragmentShader; - code[ColorDodgeCompositionModeFragmentShader] = qopenglslColorDodgeCompositionModeFragmentShader; - code[ColorBurnCompositionModeFragmentShader] = qopenglslColorBurnCompositionModeFragmentShader; - code[HardLightCompositionModeFragmentShader] = qopenglslHardLightCompositionModeFragmentShader; - code[SoftLightCompositionModeFragmentShader] = qopenglslSoftLightCompositionModeFragmentShader; - code[DifferenceCompositionModeFragmentShader] = qopenglslDifferenceCompositionModeFragmentShader; - code[ExclusionCompositionModeFragmentShader] = qopenglslExclusionCompositionModeFragmentShader; - -#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 - - QByteArray vertexSource; - QByteArray fragSource; - - // Compile up the simple shader: -#ifdef Q_OS_WASM - vertexSource.append(qShaderSnippets[PositionOnlyVertexShader]); - vertexSource.append(qShaderSnippets[MainVertexShader]); -#else - vertexSource.append(qShaderSnippets[MainVertexShader]); - vertexSource.append(qShaderSnippets[PositionOnlyVertexShader]); -#endif - fragSource.append(qShaderSnippets[MainFragmentShader]); - fragSource.append(qShaderSnippets[ShockingPinkSrcFragmentShader]); - - simpleShaderProg = new QOpenGLShaderProgram; - - CachedShader simpleShaderCache(fragSource, vertexSource); - - bool inCache = simpleShaderCache.load(simpleShaderProg, context); - - if (!inCache) { - if (!simpleShaderProg->addCacheableShaderFromSourceCode(QOpenGLShader::Vertex, vertexSource)) - qWarning("Vertex shader for simpleShaderProg (MainVertexShader & PositionOnlyVertexShader) failed to compile"); - if (!simpleShaderProg->addCacheableShaderFromSourceCode(QOpenGLShader::Fragment, fragSource)) - qWarning("Fragment shader for simpleShaderProg (MainFragmentShader & ShockingPinkSrcFragmentShader) failed to compile"); - - 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 QOpenGLShaderProgram; - - CachedShader blitShaderCache(fragSource, vertexSource); - - inCache = blitShaderCache.load(blitShaderProg, context); - - if (!inCache) { - if (!blitShaderProg->addCacheableShaderFromSourceCode(QOpenGLShader::Vertex, vertexSource)) - qWarning("Vertex shader for blitShaderProg (MainWithTexCoordsVertexShader & UntransformedPositionVertexShader) failed to compile"); - if (!blitShaderProg->addCacheableShaderFromSourceCode(QOpenGLShader::Fragment, fragSource)) - qWarning("Fragment shader for blitShaderProg (MainFragmentShader & ImageSrcFragmentShader) failed to compile"); - - 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(" -> QOpenGLEngineSharedShaders() %p for thread %p.", this, QThread::currentThread()); -#endif -} - -QOpenGLEngineSharedShaders::~QOpenGLEngineSharedShaders() -{ -#ifdef QT_GL_SHARED_SHADER_DEBUG - qDebug(" -> ~QOpenGLEngineSharedShaders() %p for thread %p.", this, QThread::currentThread()); -#endif - qDeleteAll(cachedPrograms); - cachedPrograms.clear(); - - if (blitShaderProg) { - delete blitShaderProg; - blitShaderProg = nullptr; - } - - if (simpleShaderProg) { - delete simpleShaderProg; - simpleShaderProg = nullptr; - } -} - -#if defined (QT_DEBUG) -QByteArray QOpenGLEngineSharedShaders::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. -QOpenGLEngineShaderProg *QOpenGLEngineSharedShaders::findProgramInCache(const QOpenGLEngineShaderProg &prog) -{ - for (int i = 0; i < cachedPrograms.size(); ++i) { - QOpenGLEngineShaderProg *cachedProg = cachedPrograms[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<QOpenGLEngineShaderProg> 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; -#ifdef Q_OS_WASM - vertexSource.append(qShaderSnippets[prog.positionVertexShader]); - vertexSource.append(qShaderSnippets[prog.mainVertexShader]); -#else - vertexSource.append(qShaderSnippets[prog.mainVertexShader]); - vertexSource.append(qShaderSnippets[prog.positionVertexShader]); -#endif - QScopedPointer<QOpenGLShaderProgram> shaderProgram(new QOpenGLShaderProgram); - - CachedShader shaderCache(fragSource, vertexSource); - bool inCache = shaderCache.load(shaderProgram.data(), QOpenGLContext::currentContext()); - - if (!inCache) { - if (!shaderProgram->addCacheableShaderFromSourceCode(QOpenGLShader::Vertex, vertexSource)) { - QByteArray description; -#if defined(QT_DEBUG) - description.append("Vertex shader: main="); - description.append(snippetNameStr(prog.mainVertexShader)); - description.append(", position="); - description.append(snippetNameStr(prog.positionVertexShader)); -#endif - qWarning("Warning: \"%s\" failed to compile!", description.constData()); - break; - } - if (!shaderProgram->addCacheableShaderFromSourceCode(QOpenGLShader::Fragment, fragSource)) { - QByteArray description; -#if defined(QT_DEBUG) - 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)); - } -#endif - qWarning("Warning: \"%s\" failed to compile!", description.constData()); - break; - } - - // 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 QOpenGLEngineShaderProg(prog)); - newProg->program = shaderProgram.take(); - - newProg->program->link(); - if (newProg->program->isLinked()) { - if (!inCache) - shaderCache.store(newProg->program, QOpenGLContext::currentContext()); - } else { - QString error; - error = QLatin1String("Shader program failed to link") - + QLatin1String(" Error Log:\n") - + QLatin1String(" ") + newProg->program->log(); - qWarning() << error; - break; - } - - newProg->program->bind(); - - if (newProg->maskFragShader != QOpenGLEngineSharedShaders::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 QOpenGLEngineSharedShaders::cleanupCustomStage(QOpenGLCustomShaderStage* stage) -{ - auto hasStageAsCustomShaderSouce = [stage](QOpenGLEngineShaderProg *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()); -} - - -QOpenGLEngineShaderManager::QOpenGLEngineShaderManager(QOpenGLContext* context) - : ctx(context), - shaderProgNeedsChanging(true), - complexGeometry(false), - srcPixelType(Qt::NoBrush), - opacityMode(NoOpacity), - maskType(NoMask), - compositionMode(QPainter::CompositionMode_SourceOver), - customSrcStage(nullptr), - currentShaderProg(nullptr) -{ - sharedShaders = QOpenGLEngineSharedShaders::shadersForContext(context); -} - -QOpenGLEngineShaderManager::~QOpenGLEngineShaderManager() -{ - //### - removeCustomStage(); -} - -GLuint QOpenGLEngineShaderManager::getUniformLocation(Uniform id) -{ - if (!currentShaderProg) - return 0; - - QVector<uint> &uniformLocations = currentShaderProg->uniformLocations; - if (uniformLocations.isEmpty()) - uniformLocations.fill(GLuint(-1), NumUniforms); - - const char uniformNames[][26] = { - "imageTexture", - "patternColor", - "globalOpacity", - "depth", - "maskTexture", - "fragmentColor", - "linearData", - "angle", - "halfViewportSize", - "fmp", - "fmp2_m_radius2", - "inverse_2_fmp2_m_radius2", - "sqrfr", - "bradius", - "invertedTextureSize", - "brushTransform", - "brushTexture", - "matrix" - }; - - if (uniformLocations.at(id) == GLuint(-1)) - uniformLocations[id] = currentShaderProg->program->uniformLocation(uniformNames[id]); - - return uniformLocations.at(id); -} - - -void QOpenGLEngineShaderManager::optimiseForBrushTransform(QTransform::TransformationType transformType) -{ - Q_UNUSED(transformType); // Currently ignored -} - -void QOpenGLEngineShaderManager::setDirty() -{ - shaderProgNeedsChanging = true; -} - -void QOpenGLEngineShaderManager::setSrcPixelType(Qt::BrushStyle style) -{ - Q_ASSERT(style != Qt::NoBrush); - if (srcPixelType == PixelSrcType(style)) - return; - - srcPixelType = style; - shaderProgNeedsChanging = true; //### -} - -void QOpenGLEngineShaderManager::setSrcPixelType(PixelSrcType type) -{ - if (srcPixelType == type) - return; - - srcPixelType = type; - shaderProgNeedsChanging = true; //### -} - -void QOpenGLEngineShaderManager::setOpacityMode(OpacityMode mode) -{ - if (opacityMode == mode) - return; - - opacityMode = mode; - shaderProgNeedsChanging = true; //### -} - -void QOpenGLEngineShaderManager::setMaskType(MaskType type) -{ - if (maskType == type) - return; - - maskType = type; - shaderProgNeedsChanging = true; //### -} - -void QOpenGLEngineShaderManager::setCompositionMode(QPainter::CompositionMode mode) -{ - if (compositionMode == mode) - return; - - bool wasAdvanced = compositionMode > QPainter::CompositionMode_Plus; - bool isAdvanced = mode > QPainter::CompositionMode_Plus; - - compositionMode = mode; - shaderProgNeedsChanging = shaderProgNeedsChanging || wasAdvanced || isAdvanced; -} - -void QOpenGLEngineShaderManager::setCustomStage(QOpenGLCustomShaderStage* stage) -{ - if (customSrcStage) - removeCustomStage(); - customSrcStage = stage; - shaderProgNeedsChanging = true; -} - -void QOpenGLEngineShaderManager::removeCustomStage() -{ - if (customSrcStage) - customSrcStage->setInactive(); - customSrcStage = nullptr; - shaderProgNeedsChanging = true; -} - -QOpenGLShaderProgram* QOpenGLEngineShaderManager::currentProgram() -{ - if (currentShaderProg) - return currentShaderProg->program; - else - return sharedShaders->simpleProgram(); -} - -void QOpenGLEngineShaderManager::useSimpleProgram() -{ - sharedShaders->simpleProgram()->bind(); - QOpenGLContextPrivate* ctx_d = ctx->d_func(); - Q_UNUSED(ctx_d); - - QOpenGL2PaintEngineEx *active_engine = static_cast<QOpenGL2PaintEngineEx *>(ctx_d->active_engine); - - active_engine->d_func()->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, false); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false); - - shaderProgNeedsChanging = true; -} - -void QOpenGLEngineShaderManager::useBlitProgram() -{ - sharedShaders->blitProgram()->bind(); - QOpenGLContextPrivate* ctx_d = ctx->d_func(); - QOpenGL2PaintEngineEx *active_engine = static_cast<QOpenGL2PaintEngineEx *>(ctx_d->active_engine); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, true); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false); - shaderProgNeedsChanging = true; -} - -QOpenGLShaderProgram* QOpenGLEngineShaderManager::simpleProgram() -{ - return sharedShaders->simpleProgram(); -} - -QOpenGLShaderProgram* QOpenGLEngineShaderManager::blitProgram() -{ - return sharedShaders->blitProgram(); -} - - - -// Select & use the correct shader program using the current state. -// Returns \c true if program needed changing. -bool QOpenGLEngineShaderManager::useCorrectShaderProg() -{ - if (!shaderProgNeedsChanging) - return false; - - bool useCustomSrc = customSrcStage != nullptr; - if (useCustomSrc && srcPixelType != QOpenGLEngineShaderManager::ImageSrc && srcPixelType != Qt::TexturePattern) { - useCustomSrc = false; - qWarning("QOpenGLEngineShaderManager - Ignoring custom shader stage for non image src"); - } - - QOpenGLEngineShaderProg 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 = QOpenGLEngineSharedShaders::InvalidSnippetName; - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::InvalidSnippetName; - bool isAffine = brushTransform.isAffine(); - if ( (srcPixelType >= Qt::Dense1Pattern) && (srcPixelType <= Qt::DiagCrossPattern) ) { - if (isAffine) - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::AffinePositionWithPatternBrushVertexShader; - else - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionWithPatternBrushVertexShader; - - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::PatternBrushSrcFragmentShader; - } - else switch (srcPixelType) { - default: - case Qt::NoBrush: - qFatal("QOpenGLEngineShaderManager::useCorrectShaderProg() - Qt::NoBrush style is set"); - break; - case QOpenGLEngineShaderManager::ImageSrc: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::ImageSrcFragmentShader; - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QOpenGLEngineShaderManager::NonPremultipliedImageSrc: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::NonPremultipliedImageSrcFragmentShader; - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QOpenGLEngineShaderManager::GrayscaleImageSrc: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::GrayscaleImageSrcFragmentShader; - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QOpenGLEngineShaderManager::AlphaImageSrc: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::AlphaImageSrcFragmentShader; - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QOpenGLEngineShaderManager::PatternSrc: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::ImageSrcWithPatternFragmentShader; - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionOnlyVertexShader; - texCoords = true; - break; - case QOpenGLEngineShaderManager::TextureSrcWithPattern: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::TextureBrushSrcWithPatternFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QOpenGLEngineSharedShaders::AffinePositionWithTextureBrushVertexShader - : QOpenGLEngineSharedShaders::PositionWithTextureBrushVertexShader; - break; - case Qt::SolidPattern: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::SolidBrushSrcFragmentShader; - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::PositionOnlyVertexShader; - break; - case Qt::LinearGradientPattern: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::LinearGradientBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QOpenGLEngineSharedShaders::AffinePositionWithLinearGradientBrushVertexShader - : QOpenGLEngineSharedShaders::PositionWithLinearGradientBrushVertexShader; - break; - case Qt::ConicalGradientPattern: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::ConicalGradientBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QOpenGLEngineSharedShaders::AffinePositionWithConicalGradientBrushVertexShader - : QOpenGLEngineSharedShaders::PositionWithConicalGradientBrushVertexShader; - break; - case Qt::RadialGradientPattern: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::RadialGradientBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QOpenGLEngineSharedShaders::AffinePositionWithRadialGradientBrushVertexShader - : QOpenGLEngineSharedShaders::PositionWithRadialGradientBrushVertexShader; - break; - case Qt::TexturePattern: - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::TextureBrushSrcFragmentShader; - requiredProgram.positionVertexShader = isAffine ? QOpenGLEngineSharedShaders::AffinePositionWithTextureBrushVertexShader - : QOpenGLEngineSharedShaders::PositionWithTextureBrushVertexShader; - break; - }; - - if (useCustomSrc) { - requiredProgram.srcPixelFragShader = QOpenGLEngineSharedShaders::CustomImageSrcFragmentShader; - requiredProgram.customStageSource = customSrcStage->source(); - } - - const bool hasCompose = compositionMode > QPainter::CompositionMode_Plus; - const bool hasMask = maskType != QOpenGLEngineShaderManager::NoMask; - - // Choose fragment shader main function: - if (opacityMode == AttributeOpacity) { - Q_ASSERT(!hasCompose && !hasMask); - requiredProgram.mainFragShader = QOpenGLEngineSharedShaders::MainFragmentShader_ImageArrays; - } else { - bool useGlobalOpacity = (opacityMode == UniformOpacity); - if (hasMask && useGlobalOpacity) - requiredProgram.mainFragShader = QOpenGLEngineSharedShaders::MainFragmentShader_MO; - if (hasMask && !useGlobalOpacity) - requiredProgram.mainFragShader = QOpenGLEngineSharedShaders::MainFragmentShader_M; - if (!hasMask && useGlobalOpacity) - requiredProgram.mainFragShader = QOpenGLEngineSharedShaders::MainFragmentShader_O; - if (!hasMask && !useGlobalOpacity) - requiredProgram.mainFragShader = QOpenGLEngineSharedShaders::MainFragmentShader; - } - - if (hasMask) { - if (maskType == PixelMask) { - requiredProgram.maskFragShader = QOpenGLEngineSharedShaders::MaskFragmentShader; - texCoords = true; - } else if (maskType == SubPixelMaskPass1) { - requiredProgram.maskFragShader = QOpenGLEngineSharedShaders::RgbMaskFragmentShaderPass1; - texCoords = true; - } else if (maskType == SubPixelMaskPass2) { - requiredProgram.maskFragShader = QOpenGLEngineSharedShaders::RgbMaskFragmentShaderPass2; - texCoords = true; - } else if (maskType == SubPixelWithGammaMask) { - requiredProgram.maskFragShader = QOpenGLEngineSharedShaders::RgbMaskWithGammaFragmentShader; - texCoords = true; - } else { - qCritical("QOpenGLEngineShaderManager::useCorrectShaderProg() - Unknown mask type"); - } - } else { - requiredProgram.maskFragShader = QOpenGLEngineSharedShaders::NoMaskFragmentShader; - } - - if (hasCompose) { - switch (compositionMode) { - case QPainter::CompositionMode_Multiply: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::MultiplyCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Screen: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::ScreenCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Overlay: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::OverlayCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Darken: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::DarkenCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Lighten: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::LightenCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_ColorDodge: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::ColorDodgeCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_ColorBurn: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::ColorBurnCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_HardLight: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::HardLightCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_SoftLight: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::SoftLightCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Difference: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::DifferenceCompositionModeFragmentShader; - break; - case QPainter::CompositionMode_Exclusion: - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::ExclusionCompositionModeFragmentShader; - break; - default: - qWarning("QOpenGLEngineShaderManager::useCorrectShaderProg() - Unsupported composition mode"); - } - } else { - requiredProgram.compositionFragShader = QOpenGLEngineSharedShaders::NoCompositionModeFragmentShader; - } - - // Choose vertex shader main function - if (opacityMode == AttributeOpacity) { - Q_ASSERT(texCoords); - requiredProgram.mainVertexShader = QOpenGLEngineSharedShaders::MainWithTexCoordsAndOpacityVertexShader; - } else if (texCoords) { - requiredProgram.mainVertexShader = QOpenGLEngineSharedShaders::MainWithTexCoordsVertexShader; - } else { - requiredProgram.mainVertexShader = QOpenGLEngineSharedShaders::MainVertexShader; - } - requiredProgram.useTextureCoords = texCoords; - requiredProgram.useOpacityAttribute = (opacityMode == AttributeOpacity); - if (complexGeometry && srcPixelType == Qt::SolidPattern) { - requiredProgram.positionVertexShader = QOpenGLEngineSharedShaders::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) - QOpenGLContextPrivate* ctx_d = ctx->d_func(); - QOpenGL2PaintEngineEx *active_engine = static_cast<QOpenGL2PaintEngineEx *>(ctx_d->active_engine); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, true); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, currentShaderProg && currentShaderProg->useTextureCoords); - active_engine->d_func()->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, currentShaderProg && currentShaderProg->useOpacityAttribute); - - shaderProgNeedsChanging = false; - return true; -} - -QT_END_NAMESPACE |