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Diffstat (limited to 'src/opengl/qglextensions.cpp')
| -rw-r--r-- | src/opengl/qglextensions.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/opengl/qglextensions.cpp b/src/opengl/qglextensions.cpp new file mode 100644 index 0000000..8357cf9 --- /dev/null +++ b/src/opengl/qglextensions.cpp @@ -0,0 +1,185 @@ +/**************************************************************************** +** +** 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. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgl_p.h" + +QT_BEGIN_NAMESPACE + +bool qt_resolve_framebufferobject_extensions(QGLContext *ctx) +{ +#if !defined(QT_OPENGL_ES_2) + if (glIsRenderbufferEXT != 0) + return true; + + if (ctx == 0) { + qWarning("QGLFramebufferObject: Unable to resolve framebuffer object extensions -" + " make sure there is a current context when creating the framebuffer object."); + return false; + } + + glIsRenderbufferEXT = (_glIsRenderbufferEXT) ctx->getProcAddress(QLatin1String("glIsRenderbufferEXT")); + glBindRenderbufferEXT = (_glBindRenderbufferEXT) ctx->getProcAddress(QLatin1String("glBindRenderbufferEXT")); + glDeleteRenderbuffersEXT = (_glDeleteRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteRenderbuffersEXT")); + glGenRenderbuffersEXT = (_glGenRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glGenRenderbuffersEXT")); + glRenderbufferStorageEXT = (_glRenderbufferStorageEXT) ctx->getProcAddress(QLatin1String("glRenderbufferStorageEXT")); + glGetRenderbufferParameterivEXT = + (_glGetRenderbufferParameterivEXT) ctx->getProcAddress(QLatin1String("glGetRenderbufferParameterivEXT")); + glIsFramebufferEXT = (_glIsFramebufferEXT) ctx->getProcAddress(QLatin1String("glIsFramebufferEXT")); + glBindFramebufferEXT = (_glBindFramebufferEXT) ctx->getProcAddress(QLatin1String("glBindFramebufferEXT")); + glDeleteFramebuffersEXT = (_glDeleteFramebuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteFramebuffersEXT")); + glGenFramebuffersEXT = (_glGenFramebuffersEXT) ctx->getProcAddress(QLatin1String("glGenFramebuffersEXT")); + glCheckFramebufferStatusEXT = (_glCheckFramebufferStatusEXT) ctx->getProcAddress(QLatin1String("glCheckFramebufferStatusEXT")); + glFramebufferTexture1DEXT = (_glFramebufferTexture1DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture1DEXT")); + glFramebufferTexture2DEXT = (_glFramebufferTexture2DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture2DEXT")); + glFramebufferTexture3DEXT = (_glFramebufferTexture3DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture3DEXT")); + glFramebufferRenderbufferEXT = (_glFramebufferRenderbufferEXT) ctx->getProcAddress(QLatin1String("glFramebufferRenderbufferEXT")); + glGetFramebufferAttachmentParameterivEXT = + (_glGetFramebufferAttachmentParameterivEXT) ctx->getProcAddress(QLatin1String("glGetFramebufferAttachmentParameterivEXT")); + glGenerateMipmapEXT = (_glGenerateMipmapEXT) ctx->getProcAddress(QLatin1String("glGenerateMipmapEXT")); + return glIsRenderbufferEXT; +#else + Q_UNUSED(ctx); + return true; +#endif +} + +bool qt_resolve_version_1_3_functions(QGLContext *ctx) +{ + if (glMultiTexCoord4f != 0) + return true; + + QGLContext cx(QGLFormat::defaultFormat()); + glMultiTexCoord4f = (_glMultiTexCoord4f) ctx->getProcAddress(QLatin1String("glMultiTexCoord4f")); + +#if defined(QT_OPENGL_ES_2) + return glMultiTexCoord4f; +#else + glActiveTexture = (_glActiveTexture) ctx->getProcAddress(QLatin1String("glActiveTexture")); + return glMultiTexCoord4f && glActiveTexture; +#endif +} + +bool qt_resolve_stencil_face_extension(QGLContext *ctx) +{ + if (glActiveStencilFaceEXT != 0) + return true; + + QGLContext cx(QGLFormat::defaultFormat()); + glActiveStencilFaceEXT = (_glActiveStencilFaceEXT) ctx->getProcAddress(QLatin1String("glActiveStencilFaceEXT")); + + return glActiveStencilFaceEXT; +} + +bool qt_resolve_frag_program_extensions(QGLContext *ctx) +{ + if (glProgramStringARB != 0) + return true; + + // ARB_fragment_program + glProgramStringARB = (_glProgramStringARB) ctx->getProcAddress(QLatin1String("glProgramStringARB")); + glBindProgramARB = (_glBindProgramARB) ctx->getProcAddress(QLatin1String("glBindProgramARB")); + glDeleteProgramsARB = (_glDeleteProgramsARB) ctx->getProcAddress(QLatin1String("glDeleteProgramsARB")); + glGenProgramsARB = (_glGenProgramsARB) ctx->getProcAddress(QLatin1String("glGenProgramsARB")); + glProgramLocalParameter4fvARB = (_glProgramLocalParameter4fvARB) ctx->getProcAddress(QLatin1String("glProgramLocalParameter4fvARB")); + + return glProgramStringARB + && glBindProgramARB + && glDeleteProgramsARB + && glGenProgramsARB + && glProgramLocalParameter4fvARB; +} + +bool qt_resolve_buffer_extensions(QGLContext *ctx) +{ + if (glBindBufferARB && glDeleteBuffersARB && glGenBuffersARB && glBufferDataARB + && glMapBufferARB && glUnmapBufferARB) + return true; + + glBindBufferARB = (_glBindBufferARB) ctx->getProcAddress(QLatin1String("glBindBufferARB")); + glDeleteBuffersARB = (_glDeleteBuffersARB) ctx->getProcAddress(QLatin1String("glDeleteBuffersARB")); + glGenBuffersARB = (_glGenBuffersARB) ctx->getProcAddress(QLatin1String("glGenBuffersARB")); + glBufferDataARB = (_glBufferDataARB) ctx->getProcAddress(QLatin1String("glBufferDataARB")); + glMapBufferARB = (_glMapBufferARB) ctx->getProcAddress(QLatin1String("glMapBufferARB")); + glUnmapBufferARB = (_glUnmapBufferARB) ctx->getProcAddress(QLatin1String("glUnmapBufferARB")); + + return glBindBufferARB + && glDeleteBuffersARB + && glGenBuffersARB + && glBufferDataARB + && glMapBufferARB + && glUnmapBufferARB; +} + +bool qt_resolve_glsl_extensions(QGLContext *ctx) +{ + if (glCreateShader) + return true; + + glCreateShader = (_glCreateShader) ctx->getProcAddress(QLatin1String("glCreateShader")); + glShaderSource = (_glShaderSource) ctx->getProcAddress(QLatin1String("glShaderSource")); + glCompileShader = (_glCompileShader) ctx->getProcAddress(QLatin1String("glCompileShader")); + glDeleteShader = (_glDeleteShader) ctx->getProcAddress(QLatin1String("glDeleteShader")); + + glCreateProgram = (_glCreateProgram) ctx->getProcAddress(QLatin1String("glCreateProgram")); + glAttachShader = (_glAttachShader) ctx->getProcAddress(QLatin1String("glAttachShader")); + glDetachShader = (_glDetachShader) ctx->getProcAddress(QLatin1String("glDetachShader")); + glLinkProgram = (_glLinkProgram) ctx->getProcAddress(QLatin1String("glLinkProgram")); + glUseProgram = (_glUseProgram) ctx->getProcAddress(QLatin1String("glUseProgram")); + glDeleteProgram = (_glDeleteProgram) ctx->getProcAddress(QLatin1String("glDeleteProgram")); + + glGetShaderInfoLog = (_glGetShaderInfoLog) ctx->getProcAddress(QLatin1String("glGetShaderInfoLog")); + glGetShaderiv = (_glGetShaderiv) ctx->getProcAddress(QLatin1String("glGetShaderiv")); + glGetProgramiv = (_glGetProgramiv) ctx->getProcAddress(QLatin1String("glGetProgramiv")); + + glGetUniformLocation = (_glGetUniformLocation) ctx->getProcAddress(QLatin1String("glGetUniformLocation")); + glUniform4fv = (_glUniform4fv) ctx->getProcAddress(QLatin1String("glUniform4fv")); + glUniform3fv = (_glUniform3fv) ctx->getProcAddress(QLatin1String("glUniform3fv")); + glUniform2fv = (_glUniform2fv) ctx->getProcAddress(QLatin1String("glUniform2fv")); + glUniform1fv = (_glUniform1fv) ctx->getProcAddress(QLatin1String("glUniform1fv")); + glUniform1i = (_glUniform1i) ctx->getProcAddress(QLatin1String("glUniform1i")); + + return glCreateShader && glShaderSource && glCompileShader && glDeleteProgram && + glCreateProgram && glAttachShader && glDetachShader && glLinkProgram && glUseProgram && + glDeleteProgram && glGetShaderInfoLog && glGetShaderiv && glGetProgramiv && glGetUniformLocation && + glUniform1i && glUniform1fv && glUniform2fv && glUniform3fv && glUniform4fv; +} + +QT_END_NAMESPACE |