Add support for GL_EXT_framebuffer_object, needed for mipmaps.
svn path=/branches/work/kwin_composite/; revision=629450
This commit is contained in:
Philip Falkner
parent
2dce2b7f26
commit
1e2d811cea
4 changed files with 109 additions and 5 deletions
70
glutils.cpp
70
glutils.cpp
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@ -34,13 +34,31 @@ glXQueryDrawable_func glXQueryDrawable;
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// texture_from_pixmap extension functions
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glXReleaseTexImageEXT_func glXReleaseTexImageEXT;
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glXBindTexImageEXT_func glXBindTexImageEXT;
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// glActiveTexture
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glActiveTexture_func glActiveTexture;
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// glXCopySubBufferMESA
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glXCopySubBuffer_func glXCopySubBuffer;
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// video_sync extension functions
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glXGetVideoSync_func glXGetVideoSync;
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glXWaitVideoSync_func glXWaitVideoSync;
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// glActiveTexture
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glActiveTexture_func glActiveTexture;
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// framebuffer_object extension functions
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glIsRenderbuffer_func glIsRenderbuffer;
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glBindRenderbuffer_func glBindRenderbuffer;
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glDeleteRenderbuffers_func glDeleteRenderbuffers;
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glGenRenderbuffers_func glGenRenderbuffers;
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glRenderbufferStorage_func glRenderbufferStorage;
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glGetRenderbufferParameteriv_func glGetRenderbufferParameteriv;
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glIsFramebuffer_func glIsFramebuffer;
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glBindFramebuffer_func glBindFramebuffer;
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glDeleteFramebuffers_func glDeleteFramebuffers;
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glGenFramebuffers_func glGenFramebuffers;
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glCheckFramebufferStatus_func glCheckFramebufferStatus;
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glFramebufferTexture1D_func glFramebufferTexture1D;
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glFramebufferTexture2D_func glFramebufferTexture2D;
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glFramebufferTexture3D_func glFramebufferTexture3D;
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glFramebufferRenderbuffer_func glFramebufferRenderbuffer;
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glGetFramebufferAttachmentParameteriv_func glGetFramebufferAttachmentParameteriv;
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glGenerateMipmap_func glGenerateMipmap;
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// Functions
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@ -119,6 +137,54 @@ void initGL()
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glActiveTexture = NULL;
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glTextureUnitsCount = 0;
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}
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if( hasGLExtension( "GL_EXT_framebuffer_object" ))
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{
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glIsRenderbuffer = (glIsRenderbuffer_func) getProcAddress( "glIsRenderbufferEXT" );
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glBindRenderbuffer = (glBindRenderbuffer_func) getProcAddress( "glBindRenderbufferEXT" );
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glDeleteRenderbuffers = (glDeleteRenderbuffers_func) getProcAddress( "glDeleteRenderbuffersEXT" );
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glGenRenderbuffers = (glGenRenderbuffers_func) getProcAddress( "glGenRenderbuffersEXT" );
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glRenderbufferStorage = (glRenderbufferStorage_func) getProcAddress( "glRenderbufferStorageEXT" );
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glGetRenderbufferParameteriv = (glGetRenderbufferParameteriv_func) getProcAddress( "glGetRenderbufferParameterivEXT" );
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glIsFramebuffer = (glIsFramebuffer_func) getProcAddress( "glIsFramebufferEXT" );
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glBindFramebuffer = (glBindFramebuffer_func) getProcAddress( "glBindFramebufferEXT" );
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glDeleteFramebuffers = (glDeleteFramebuffers_func) getProcAddress( "glDeleteFramebuffersEXT" );
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glGenFramebuffers = (glGenFramebuffers_func) getProcAddress( "glGenFramebuffersEXT" );
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glCheckFramebufferStatus = (glCheckFramebufferStatus_func) getProcAddress( "glCheckFramebufferStatusEXT" );
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glFramebufferTexture1D = (glFramebufferTexture1D_func) getProcAddress( "glFramebufferTexture1DEXT" );
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glFramebufferTexture2D = (glFramebufferTexture2D_func) getProcAddress( "glFramebufferTexture2DEXT" );
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glFramebufferTexture3D = (glFramebufferTexture3D_func) getProcAddress( "glFramebufferTexture3DEXT" );
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glFramebufferRenderbuffer = (glFramebufferRenderbuffer_func) getProcAddress( "glFramebufferRenderbufferEXT" );
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glGetFramebufferAttachmentParameteriv = (glGetFramebufferAttachmentParameteriv_func) getProcAddress( "glGetFramebufferAttachmentParameterivEXT" );
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glGenerateMipmap = (glGenerateMipmap_func) getProcAddress( "glGenerateMipmapEXT" );
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}
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else
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{
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glIsRenderbuffer = NULL;
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glBindRenderbuffer = NULL;
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glDeleteRenderbuffers = NULL;
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glGenRenderbuffers = NULL;
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glRenderbufferStorage = NULL;
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glGetRenderbufferParameteriv = NULL;
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glIsFramebuffer = NULL;
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glBindFramebuffer = NULL;
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glDeleteFramebuffers = NULL;
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glGenFramebuffers = NULL;
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glCheckFramebufferStatus = NULL;
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glFramebufferTexture1D = NULL;
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glFramebufferTexture2D = NULL;
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glFramebufferTexture3D = NULL;
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glFramebufferRenderbuffer = NULL;
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glGetFramebufferAttachmentParameteriv = NULL;
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glGenerateMipmap = NULL;
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}
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}
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bool hasGLVersion(int major, int minor, int release)
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41
glutils.h
41
glutils.h
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@ -88,9 +88,6 @@ typedef void (*glXBindTexImageEXT_func)( Display* dpy, GLXDrawable drawable,
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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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@ -99,6 +96,44 @@ 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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@ -90,6 +90,7 @@ bool SceneOpenGL::strict_binding; // intended for AIGLX
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bool SceneOpenGL::db; // destination drawable is double-buffered
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bool SceneOpenGL::copy_buffer_hack; // workaround for nvidia < 1.0-9xxx drivers
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bool SceneOpenGL::supports_npot_textures;
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bool SceneOpenGL::supports_fbo;
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bool SceneOpenGL::supports_saturation;
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bool SceneOpenGL::shm_mode;
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XShmSegmentInfo SceneOpenGL::shm;
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@ -138,6 +139,7 @@ SceneOpenGL::SceneOpenGL( Workspace* ws )
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// Check whether certain features are supported
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supports_npot_textures = hasGLExtension( "GL_ARB_texture_non_power_of_two" )
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|| hasGLVersion(2, 0);
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supports_fbo = hasGLExtension( "GL_EXT_framebuffer_object" );
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supports_saturation = ((hasGLExtension("GL_ARB_texture_env_crossbar")
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&& hasGLExtension("GL_ARB_texture_env_dot3")) || hasGLVersion(1, 4))
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&& (glTextureUnitsCount >= 4) && glActiveTexture != NULL;
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@ -73,6 +73,7 @@ class SceneOpenGL
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static bool strict_binding;
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static bool copy_buffer_hack;
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static bool supports_npot_textures;
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static bool supports_fbo;
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static bool supports_saturation;
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QMap< Toplevel*, Window > windows;
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static XShmSegmentInfo shm;
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