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cogl: Introduce private feature flags and check for ARB_fp

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The Cogl context has now a feature_flags_private enum that will allow us
to query and use OpenGL features without exposing them in the public
API.

The ARB_fragment_program extension is the first user of those flags.
Looking for this extension only happens in the gl driver as the gles
drivers will not expose them.

One can use _cogl_features_available_private() to check for the
availability of such private features.

While at it, reindent cogl-internal.h as described in CODING_STYLE.
This commit is contained in:
Damien Lespiau
2009-11-14 14:59:59 +00:00
committed by Robert Bragg
parent 8836c868a4
commit 56dd71dba0
13 changed files with 91 additions and 26 deletions
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42
cogl/driver/gl/cogl-feature-functions.h
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@ -30,7 +30,8 @@ COGL_FEATURE_BEGIN (offscreen, 255, 255,
functions */
"ARB:\0EXT\0",
"framebuffer_object\0",
COGL_FEATURE_OFFSCREEN)
COGL_FEATURE_OFFSCREEN,
0)
COGL_FEATURE_FUNCTION (void, glGenRenderbuffers,
(GLsizei n,
GLuint *renderbuffers))
@ -74,7 +75,8 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (offscreen_blit, 255, 255,
"EXT\0",
"framebuffer_blit\0",
COGL_FEATURE_OFFSCREEN_BLIT)
COGL_FEATURE_OFFSCREEN_BLIT,
0)
COGL_FEATURE_FUNCTION (void, glBlitFramebuffer,
(GLint srcX0,
GLint srcY0,
@ -91,7 +93,8 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (offscreen_multisample, 255, 255,
"EXT\0",
"framebuffer_multisample\0",
COGL_FEATURE_OFFSCREEN_MULTISAMPLE)
COGL_FEATURE_OFFSCREEN_MULTISAMPLE,
0)
COGL_FEATURE_FUNCTION (void, glRenderbufferStorageMultisample,
(GLenum target,
GLsizei samples,
@ -99,10 +102,31 @@ COGL_FEATURE_FUNCTION (void, glRenderbufferStorageMultisample,
GLsizei width,
GLsizei height))
COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (read_pixels_async, 2, 1,
"EXT\0",
"pixel_buffer_object\0",
COGL_FEATURE_PBOS)
COGL_FEATURE_PBOS,
0)
COGL_FEATURE_END ()
/* ARB_fragment_program */
COGL_FEATURE_BEGIN (arbfp, 255, 255,
"ARB\0",
"fragment_program\0",
0,
COGL_FEATURE_PRIVATE_ARB_FP)
COGL_FEATURE_FUNCTION (void, glGenPrograms,
(GLsizei n,
GLuint *programs))
COGL_FEATURE_FUNCTION (void, glBindProgram,
(GLenum target,
GLuint program))
COGL_FEATURE_FUNCTION (void, glProgramString,
(GLenum target,
GLenum format,
GLsizei len,
const void *program))
COGL_FEATURE_END ()
/* The function names in OpenGL 2.0 are different so we can't easily
@ -112,7 +136,8 @@ COGL_FEATURE_BEGIN (shaders_glsl, 255, 255,
"shader_objects\0"
"vertex_shader\0"
"fragment_shader\0",
COGL_FEATURE_SHADERS_GLSL)
COGL_FEATURE_SHADERS_GLSL,
0)
COGL_FEATURE_FUNCTION (GLhandleARB, glCreateProgramObject,
(void))
COGL_FEATURE_FUNCTION (GLhandleARB, glCreateShaderObject,
@ -247,7 +272,8 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (vbos, 1, 5,
"ARB\0",
"vertex_buffer_object\0",
COGL_FEATURE_VBOS)
COGL_FEATURE_VBOS,
0)
COGL_FEATURE_FUNCTION (void, glGenBuffers,
(GLuint n,
GLuint *buffers))
@ -281,6 +307,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (in_1_2, 1, 2,
"\0",
"\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glDrawRangeElements,
(GLenum mode,
@ -303,6 +330,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (multitexture, 1, 3,
"ARB\0",
"multitexture\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glActiveTexture,
(GLenum texture))
@ -314,6 +342,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (blend_func_separate, 1, 4,
"EXT\0",
"blend_func_separate\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glBlendFuncSeparate,
(GLenum srcRGB,
@ -326,6 +355,7 @@ COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (blend_equation_separate, 2, 0,
"EXT\0",
"blend_equation_separate\0",
0,
0)
COGL_FEATURE_FUNCTION (void, glBlendEquationSeparate,
(GLenum modeRGB,