140 lines
6 KiB
C++
140 lines
6 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_TEXTURE_1D_BIT_EXT 0x00000001
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#define GLX_TEXTURE_2D_BIT_EXT 0x00000002
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#define GLX_TEXTURE_RECTANGLE_BIT_EXT 0x00000004
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#define GLX_TEXTURE_1D_EXT 0x20DB
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#define GLX_TEXTURE_2D_EXT 0x20DC
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#define GLX_TEXTURE_RECTANGLE_EXT 0x20DD
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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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// 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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// glActiveTexture
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typedef void (*glActiveTexture_func)(GLenum);
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extern glActiveTexture_func glActiveTexture;
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// framebuffer_object extension functions
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typedef bool (*glIsRenderbuffer_func)( GLuint renderbuffer );
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typedef void (*glBindRenderbuffer_func)( GLenum target, GLuint renderbuffer );
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typedef void (*glDeleteRenderbuffers_func)( GLsizei n, const GLuint *renderbuffers );
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typedef void (*glGenRenderbuffers_func)( GLsizei n, GLuint *renderbuffers );
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typedef void (*glRenderbufferStorage_func)( GLenum target, GLenum internalformat, GLsizei width, GLsizei height );
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typedef void (*glGetRenderbufferParameteriv_func)( GLenum target, GLenum pname, GLint *params );
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typedef bool (*glIsFramebuffer_func)( GLuint framebuffer );
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typedef void (*glBindFramebuffer_func)( GLenum target, GLuint framebuffer );
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typedef void (*glDeleteFramebuffers_func)( GLsizei n, const GLuint *framebuffers );
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typedef void (*glGenFramebuffers_func)( GLsizei n, GLuint *framebuffers );
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typedef void (*glCheckFramebufferStatus_func)( GLenum target );
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typedef void (*glFramebufferTexture1D_func)( GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level );
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typedef void (*glFramebufferTexture2D_func)( GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level );
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typedef void (*glFramebufferTexture3D_func)( GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset );
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typedef void (*glFramebufferRenderbuffer_func)( GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer );
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typedef void (*glGetFramebufferAttachmentParameteriv_func)( GLenum target, GLenum attachment, GLenum pname, GLint *params );
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typedef void (*glGenerateMipmap_func)( GLenum target );
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extern glIsRenderbuffer_func glIsRenderbuffer;
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extern glBindRenderbuffer_func glBindRenderbuffer;
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extern glDeleteRenderbuffers_func glDeleteRenderbuffers;
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extern glGenRenderbuffers_func glGenRenderbuffers;
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extern glRenderbufferStorage_func glRenderbufferStorage;
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extern glGetRenderbufferParameteriv_func glGetRenderbufferParameteriv;
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extern glIsFramebuffer_func glIsFramebuffer;
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extern glBindFramebuffer_func glBindFramebuffer;
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extern glDeleteFramebuffers_func glDeleteFramebuffers;
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extern glGenFramebuffers_func glGenFramebuffers;
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extern glCheckFramebufferStatus_func glCheckFramebufferStatus;
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extern glFramebufferTexture1D_func glFramebufferTexture1D;
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extern glFramebufferTexture2D_func glFramebufferTexture2D;
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extern glFramebufferTexture3D_func glFramebufferTexture3D;
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extern glFramebufferRenderbuffer_func glFramebufferRenderbuffer;
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extern glGetFramebufferAttachmentParameteriv_func glGetFramebufferAttachmentParameteriv;
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extern glGenerateMipmap_func glGenerateMipmap;
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} // namespace
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#endif
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