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Diffstat (limited to 'src/opengl/gl2paintengineex/qglpexshadermanager_p.h')
| -rw-r--r-- | src/opengl/gl2paintengineex/qglpexshadermanager_p.h | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/src/opengl/gl2paintengineex/qglpexshadermanager_p.h b/src/opengl/gl2paintengineex/qglpexshadermanager_p.h deleted file mode 100644 index c8f47b2..0000000 --- a/src/opengl/gl2paintengineex/qglpexshadermanager_p.h +++ /dev/null @@ -1,156 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Qt Software Information (qt-info@nokia.com) -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at qt-sales@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// 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. -// - -#include "qglshader_p.h" - - -// Worstcase combo: Brush->Mask->Composition - -/* - Vertex shader source is specified with a single string. This string - contains the main function and sets the gl_Position. The choice of - which vertex shader to use depends on: - - Brush style - - Brush transform->isAffine() - - Fragment shaders are specified as multiple strings, one for the main - function, one for the brush calculation and optionally one for the - extended composition mode. Brushes are implementations of - "mediump vec4 brush()" - Composition modes are implemented as a - "mediump vec4 compose(mediump vec4 color)" - NOTE: Precision may change in future. - - The choice of which main() fragment shader string to use depends on: - - Global opacity - - Brush style (some brushes apply opacity themselves) - - Use of mask (TODO: Need to support high quality anti-aliasing & text) - - Composition mode - - The choice of which brush() fragment shader to use depends on: - - Brush style - -*/ - - -struct QGLCachedShaderProg -{ - QGLShader* vertexShader; - QGLShader* brushShader; - QGLShader* compositionShader; - QGLShaderProgram* shader; -}; - -class QGLPEXShaderManager -{ -public: - QGLPEXShaderManager(const QGLContext* context); - ~QGLPEXShaderManager(); - - enum TransformType {IdentityTransform, ScaleTransform, TranslateTransform, FullTransform}; - - void optimiseForBrushTransform(const QTransform& transform); - void setBrushStyle(Qt::BrushStyle style); - void setUseGlobalOpacity(bool value); - void setAffineOnlyBrushTransform(bool value); // I.e. Do we need to apply perspective-correction? - // Not doing so saves some vertex shader calculations. - - bool useCorrectShaderProg(); // returns true if the shader program has changed - - QGLShaderProgram* brushShader(); - QGLShaderProgram* simpleShader(); // Used to draw into e.g. stencil buffers - QGLShaderProgram* imageShader(); - QGLShaderProgram* textShader(); - -private: - QGLShader* defaultVertexShader; - - QGLShader* imageVertexShader; - QGLShader* imageFragmentShader; - QGLShaderProgram* imageShaderProgram; - - QGLShader* textVertexShader; - QGLShader* textFragmentShader; - QGLShaderProgram* textShaderProgram; - - QGLShader* noBrushShader; - QGLShader* solidBrushShader; - - QGLShader* conicalBrushVertexShader; - QGLShader* conicalBrushFragmentShader; - - QGLShader* radialBrushVertexShader; - QGLShader* radialBrushFragmentShader; - - QGLShader* linearBrushVertexShader; - QGLShader* linearBrushFragmentShader; - - QGLShader* patternBrushVertexShader; - QGLShader* patternBrushFragmentShader; - - QGLShader* textureBrushFragmentShader; - QGLShader* textureBrushVertexShader; - - QGLShader* simpleFragmentShader; - QGLShaderProgram* simpleShaderProgram; - - QGLShaderProgram* activeProgram; - - Qt::BrushStyle currentBrushStyle; - bool useGlobalOpacity; - TransformType currentTransformType; - bool shaderProgNeedsChanging; - - QList<QGLCachedShaderProg> cachedPrograms; - - QGLContext* ctx; -}; |