diff options
Diffstat (limited to 'src/opengl/qglextensions.cpp')
| -rw-r--r-- | src/opengl/qglextensions.cpp | 104 |
1 files changed, 76 insertions, 28 deletions
diff --git a/src/opengl/qglextensions.cpp b/src/opengl/qglextensions.cpp index a883c42..3699d62 100644 --- a/src/opengl/qglextensions.cpp +++ b/src/opengl/qglextensions.cpp @@ -1,6 +1,7 @@ /**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtOpenGL module of the Qt Toolkit. @@ -20,10 +21,9 @@ ** 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 1.1, included in the file LGPL_EXCEPTION.txt in this -** package. +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. @@ -43,6 +43,52 @@ QT_BEGIN_NAMESPACE +static void *qt_gl_getProcAddress_search + (QGLContext *ctx, const char *name1, const char *name2, + const char *name3, const char *name4) +{ + void *addr; + + addr = ctx->getProcAddress(QLatin1String(name1)); + if (addr) + return addr; + + addr = ctx->getProcAddress(QLatin1String(name2)); + if (addr) + return addr; + + addr = ctx->getProcAddress(QLatin1String(name3)); + if (addr) + return addr; + + if (name4) + return ctx->getProcAddress(QLatin1String(name4)); + + return 0; +} + +// Search for an extension function starting with the most likely +// function suffix first, and then trying the other variations. +#if defined(QT_OPENGL_ES) +#define qt_gl_getProcAddress(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name, name "OES", name "EXT", name "ARB") +#define qt_gl_getProcAddressEXT(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name "OES", name, name "EXT", name "ARB") +#define qt_gl_getProcAddressARB(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name "OES", name, name "ARB", name "EXT") +#define qt_gl_getProcAddressOES(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name "OES", name, name "EXT", name "ARB") +#else +#define qt_gl_getProcAddress(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name, name "ARB", name "EXT", 0) +#define qt_gl_getProcAddressEXT(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name "EXT", name, name "ARB", 0) +#define qt_gl_getProcAddressARB(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name "ARB", name, name "EXT", 0) +#define qt_gl_getProcAddressOES(ctx,name) \ + qt_gl_getProcAddress_search((ctx), name "OES", name, name "EXT", name "ARB") +#endif + bool qt_resolve_framebufferobject_extensions(QGLContext *ctx) { #if defined(QT_OPENGL_ES_2) @@ -62,30 +108,32 @@ bool qt_resolve_framebufferobject_extensions(QGLContext *ctx) } - glBlitFramebufferEXT = (_glBlitFramebufferEXT) ctx->getProcAddress(QLatin1String("glBlitFramebufferEXT")); + glBlitFramebufferEXT = (_glBlitFramebufferEXT) qt_gl_getProcAddressEXT(ctx, "glBlitFramebuffer"); glRenderbufferStorageMultisampleEXT = - (_glRenderbufferStorageMultisampleEXT) ctx->getProcAddress(QLatin1String("glRenderbufferStorageMultisampleEXT")); + (_glRenderbufferStorageMultisampleEXT) qt_gl_getProcAddressEXT(ctx, "glRenderbufferStorageMultisample"); #if !defined(QT_OPENGL_ES_2) - glIsRenderbuffer = (_glIsRenderbuffer) ctx->getProcAddress(QLatin1String("glIsRenderbufferEXT")); - glBindRenderbuffer = (_glBindRenderbuffer) ctx->getProcAddress(QLatin1String("glBindRenderbufferEXT")); - glDeleteRenderbuffers = (_glDeleteRenderbuffers) ctx->getProcAddress(QLatin1String("glDeleteRenderbuffersEXT")); - glGenRenderbuffers = (_glGenRenderbuffers) ctx->getProcAddress(QLatin1String("glGenRenderbuffersEXT")); - glRenderbufferStorage = (_glRenderbufferStorage) ctx->getProcAddress(QLatin1String("glRenderbufferStorageEXT")); + glIsRenderbuffer = (_glIsRenderbuffer) qt_gl_getProcAddressEXT(ctx, "glIsRenderbuffer"); + if (!glIsRenderbuffer) + return false; // Not much point searching for anything else. + glBindRenderbuffer = (_glBindRenderbuffer) qt_gl_getProcAddressEXT(ctx, "glBindRenderbuffer"); + glDeleteRenderbuffers = (_glDeleteRenderbuffers) qt_gl_getProcAddressEXT(ctx, "glDeleteRenderbuffers"); + glGenRenderbuffers = (_glGenRenderbuffers) qt_gl_getProcAddressEXT(ctx, "glGenRenderbuffers"); + glRenderbufferStorage = (_glRenderbufferStorage) qt_gl_getProcAddressEXT(ctx, "glRenderbufferStorage"); glGetRenderbufferParameteriv = - (_glGetRenderbufferParameteriv) ctx->getProcAddress(QLatin1String("glGetRenderbufferParameterivEXT")); - glIsFramebuffer = (_glIsFramebuffer) ctx->getProcAddress(QLatin1String("glIsFramebufferEXT")); - glBindFramebuffer = (_glBindFramebuffer) ctx->getProcAddress(QLatin1String("glBindFramebufferEXT")); - glDeleteFramebuffers = (_glDeleteFramebuffers) ctx->getProcAddress(QLatin1String("glDeleteFramebuffersEXT")); - glGenFramebuffers = (_glGenFramebuffers) ctx->getProcAddress(QLatin1String("glGenFramebuffersEXT")); - glCheckFramebufferStatus = (_glCheckFramebufferStatus) ctx->getProcAddress(QLatin1String("glCheckFramebufferStatusEXT")); - glFramebufferTexture2D = (_glFramebufferTexture2D) ctx->getProcAddress(QLatin1String("glFramebufferTexture2DEXT")); - glFramebufferRenderbuffer = (_glFramebufferRenderbuffer) ctx->getProcAddress(QLatin1String("glFramebufferRenderbufferEXT")); + (_glGetRenderbufferParameteriv) qt_gl_getProcAddressEXT(ctx, "glGetRenderbufferParameteriv"); + glIsFramebuffer = (_glIsFramebuffer) qt_gl_getProcAddressEXT(ctx, "glIsFramebuffer"); + glBindFramebuffer = (_glBindFramebuffer) qt_gl_getProcAddressEXT(ctx, "glBindFramebuffer"); + glDeleteFramebuffers = (_glDeleteFramebuffers) qt_gl_getProcAddressEXT(ctx, "glDeleteFramebuffers"); + glGenFramebuffers = (_glGenFramebuffers) qt_gl_getProcAddressEXT(ctx, "glGenFramebuffers"); + glCheckFramebufferStatus = (_glCheckFramebufferStatus) qt_gl_getProcAddressEXT(ctx, "glCheckFramebufferStatus"); + glFramebufferTexture2D = (_glFramebufferTexture2D) qt_gl_getProcAddressEXT(ctx, "glFramebufferTexture2D"); + glFramebufferRenderbuffer = (_glFramebufferRenderbuffer) qt_gl_getProcAddressEXT(ctx, "glFramebufferRenderbuffer"); glGetFramebufferAttachmentParameteriv = - (_glGetFramebufferAttachmentParameteriv) ctx->getProcAddress(QLatin1String("glGetFramebufferAttachmentParameterivEXT")); - glGenerateMipmap = (_glGenerateMipmap) ctx->getProcAddress(QLatin1String("glGenerateMipmapEXT")); + (_glGetFramebufferAttachmentParameteriv) qt_gl_getProcAddressEXT(ctx, "glGetFramebufferAttachmentParameteriv"); + glGenerateMipmap = (_glGenerateMipmap) qt_gl_getProcAddressEXT(ctx, "glGenerateMipmap"); - return glIsRenderbuffer; + return glIsRenderbuffer != 0; #else return true; #endif @@ -151,13 +199,13 @@ bool qt_resolve_buffer_extensions(QGLContext *ctx) return true; #if !defined(QT_OPENGL_ES_2) - glBindBuffer = (_glBindBuffer) ctx->getProcAddress(QLatin1String("glBindBufferARB")); - glDeleteBuffers = (_glDeleteBuffers) ctx->getProcAddress(QLatin1String("glDeleteBuffersARB")); - glGenBuffers = (_glGenBuffers) ctx->getProcAddress(QLatin1String("glGenBuffersARB")); - glBufferData = (_glBufferData) ctx->getProcAddress(QLatin1String("glBufferDataARB")); + glBindBuffer = (_glBindBuffer) qt_gl_getProcAddressARB(ctx, "glBindBuffer"); + glDeleteBuffers = (_glDeleteBuffers) qt_gl_getProcAddressARB(ctx, "glDeleteBuffers"); + glGenBuffers = (_glGenBuffers) qt_gl_getProcAddressARB(ctx, "glGenBuffers"); + glBufferData = (_glBufferData) qt_gl_getProcAddressARB(ctx, "glBufferData"); #endif - glMapBufferARB = (_glMapBufferARB) ctx->getProcAddress(QLatin1String("glMapBufferARB")); - glUnmapBufferARB = (_glUnmapBufferARB) ctx->getProcAddress(QLatin1String("glUnmapBufferARB")); + glMapBufferARB = (_glMapBufferARB) qt_gl_getProcAddressARB(ctx, "glMapBuffer"); + glUnmapBufferARB = (_glUnmapBufferARB) qt_gl_getProcAddressARB(ctx, "glUnmapBuffer"); return glMapBufferARB && glUnmapBufferARB |