97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/*****************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2006 Rivo Laks <rivolaks@hot.ee>
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You can Freely distribute this program under the GNU General Public
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License. See the file "COPYING" for the exact licensing terms.
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******************************************************************/
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#ifndef KWIN_GLUTILS_H
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#define KWIN_GLUTILS_H
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#include "utils.h"
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#include <QStringList>
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#include <GL/gl.h>
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#include <GL/glx.h>
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#include <GL/glext.h>
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#include <GL/glxext.h>
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namespace KWinInternal
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{
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// Initializes GLX function pointers
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void initGLX();
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// Initializes OpenGL stuff. This includes resolving function pointers as
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// well as checking for GL version and extensions
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// Note that GL context has to be created by the time this function is called
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void initGL();
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// Number of supported texture units
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extern int glTextureUnitsCount;
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bool hasGLVersion(int major, int minor, int release = 0);
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bool hasGLXVersion(int major, int minor, int release = 0);
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// use for both OpenGL and GLX extensions
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bool hasGLExtension(const QString& extension);
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inline bool isPowerOfTwo( int x ) { return (( x & ( x - 1 )) == 0 ); }
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// Defines
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/*
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** GLX_EXT_texture_from_pixmap
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*/
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#define GLX_BIND_TO_TEXTURE_RGB_EXT 0x20D0
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#define GLX_BIND_TO_TEXTURE_RGBA_EXT 0x20D1
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#define GLX_BIND_TO_MIPMAP_TEXTURE_EXT 0x20D2
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#define GLX_BIND_TO_TEXTURE_TARGETS_EXT 0x20D3
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#define GLX_Y_INVERTED_EXT 0x20D4
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#define GLX_TEXTURE_FORMAT_EXT 0x20D5
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#define GLX_TEXTURE_TARGET_EXT 0x20D6
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#define GLX_MIPMAP_TEXTURE_EXT 0x20D7
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#define GLX_TEXTURE_FORMAT_NONE_EXT 0x20D8
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#define GLX_TEXTURE_FORMAT_RGB_EXT 0x20D9
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#define GLX_TEXTURE_FORMAT_RGBA_EXT 0x20DA
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#define GLX_FRONT_LEFT_EXT 0x20DE
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// Function pointers
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// finding of OpenGL extensions functions
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typedef void (*glXFuncPtr)();
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typedef glXFuncPtr (*glXGetProcAddress_func)( const GLubyte* );
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extern glXGetProcAddress_func glXGetProcAddress;
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// glXQueryDrawable (added in GLX 1.3)
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typedef void (*glXQueryDrawable_func)( Display* dpy, GLXDrawable drawable,
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int attribute, unsigned int *value );
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extern glXQueryDrawable_func glXQueryDrawable;
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// texture_from_pixmap extension functions
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typedef void (*glXBindTexImageEXT_func)( Display* dpy, GLXDrawable drawable,
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int buffer, const int* attrib_list );
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typedef void (*glXReleaseTexImageEXT_func)( Display* dpy, GLXDrawable drawable, int buffer );
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extern glXReleaseTexImageEXT_func glXReleaseTexImageEXT;
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extern glXBindTexImageEXT_func glXBindTexImageEXT;
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// glActiveTexture
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typedef void (*glActiveTexture_func)(GLenum);
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extern glActiveTexture_func glActiveTexture;
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// glXCopySubBufferMESA
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typedef void (*glXCopySubBuffer_func) ( Display* , GLXDrawable, int, int, int, int );
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extern glXCopySubBuffer_func glXCopySubBuffer;
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// video_sync extension functions
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typedef void (*glXGetVideoSync_func)( unsigned int *count );
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typedef void (*glXWaitVideoSync_func)( int divisor, int remainder, unsigned int *count );
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extern glXGetVideoSync_func glXGetVideoSync;
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extern glXWaitVideoSync_func glXWaitVideoSync;
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} // namespace
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#endif
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