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Diffstat (limited to 'src/gui/opengl/qopengltextureglyphcache_p.h')
| -rw-r--r-- | src/gui/opengl/qopengltextureglyphcache_p.h | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/src/gui/opengl/qopengltextureglyphcache_p.h b/src/gui/opengl/qopengltextureglyphcache_p.h deleted file mode 100644 index 4bea4a463a..0000000000 --- a/src/gui/opengl/qopengltextureglyphcache_p.h +++ /dev/null @@ -1,181 +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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QOPENGLTEXTUREGLYPHCACHE_P_H -#define QOPENGLTEXTUREGLYPHCACHE_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 <QtGui/private/qtguiglobal_p.h> -#include <private/qtextureglyphcache_p.h> -#include <private/qopenglcontext_p.h> -#include <qopenglshaderprogram.h> -#include <qopenglfunctions.h> -#include <qopenglbuffer.h> -#include <qopenglvertexarrayobject.h> - -// #define QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - -QT_BEGIN_NAMESPACE - -class QOpenGL2PaintEngineExPrivate; - -class QOpenGLGlyphTexture : public QOpenGLSharedResource -{ -public: - explicit QOpenGLGlyphTexture(QOpenGLContext *ctx) - : QOpenGLSharedResource(ctx->shareGroup()) - , m_width(0) - , m_height(0) - { - if (!ctx->d_func()->workaround_brokenFBOReadBack) - QOpenGLFunctions(ctx).glGenFramebuffers(1, &m_fbo); - -#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - qDebug(" -> QOpenGLGlyphTexture() %p for context %p.", this, ctx); -#endif - } - - void freeResource(QOpenGLContext *context) override - { - QOpenGLContext *ctx = context; -#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG - qDebug("~QOpenGLGlyphTexture() %p for context %p.", this, ctx); -#endif - if (!ctx->d_func()->workaround_brokenFBOReadBack) - ctx->functions()->glDeleteFramebuffers(1, &m_fbo); - if (m_width || m_height) - ctx->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_GUI_EXPORT QOpenGLTextureGlyphCache : public QImageTextureGlyphCache -{ -public: - QOpenGLTextureGlyphCache(QFontEngine::GlyphFormat glyphFormat, const QTransform &matrix, const QColor &color = QColor()); - ~QOpenGLTextureGlyphCache(); - - 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 { - QOpenGLTextureGlyphCache *that = const_cast<QOpenGLTextureGlyphCache *>(this); - QOpenGLGlyphTexture *glyphTexture = that->m_textureResource; - return glyphTexture ? glyphTexture->m_texture : 0; - } - - inline int width() const { - QOpenGLTextureGlyphCache *that = const_cast<QOpenGLTextureGlyphCache *>(this); - QOpenGLGlyphTexture *glyphTexture = that->m_textureResource; - return glyphTexture ? glyphTexture->m_width : 0; - } - inline int height() const { - QOpenGLTextureGlyphCache *that = const_cast<QOpenGLTextureGlyphCache *>(this); - QOpenGLGlyphTexture *glyphTexture = that->m_textureResource; - return glyphTexture ? glyphTexture->m_height : 0; - } - - inline void setPaintEnginePrivate(QOpenGL2PaintEngineExPrivate *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(); - - QOpenGL2PaintEngineExPrivate *paintEnginePrivate() const - { - return pex; - } - -private: - void setupVertexAttribs(); - - QOpenGLGlyphTexture *m_textureResource; - - QOpenGL2PaintEngineExPrivate *pex; - QOpenGLShaderProgram *m_blitProgram; - FilterMode m_filterMode; - - GLfloat m_vertexCoordinateArray[8]; - GLfloat m_textureCoordinateArray[8]; - - int m_serialNumber; - - QOpenGLBuffer m_buffer; - QOpenGLVertexArrayObject m_vao; -}; - -QT_END_NAMESPACE - -#endif // QOPENGLTEXTUREGLYPHCACHE_P_H - |