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cogl-gles: Check for the GL_ANGLE_framebuffer_blit extension

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This extension is the GLES equivalent of the GL_EXT_framebuffer_blit
extension except that it has some extra restrictions. We need to check
for some extension that provides glBlitFramebuffer so that we can
unconditionally use ctx->drv.pf_glBlitFramebuffer in both GL and GLES
code. Even with the restrictions, the extension provides enough
features for what Cogl needs.
This commit is contained in:
Neil Roberts 2011-02-05 12:42:39 +00:00
parent 50babfbc7a
commit 392cfb493a
1 changed files with 18 additions and 0 deletions
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18
cogl/driver/gles/cogl-feature-functions-gles.h
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@ -74,6 +74,24 @@ COGL_FEATURE_FUNCTION (void, glGetFramebufferAttachmentParameteriv,
GLint *params))
COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (offscreen_blit, 255, 255,
"ANGLE\0",
"framebuffer_blit\0",
COGL_FEATURE_OFFSCREEN_BLIT,
0)
COGL_FEATURE_FUNCTION (void, glBlitFramebuffer,
(GLint srcX0,
GLint srcY0,
GLint srcX1,
GLint srcY1,
GLint dstX0,
GLint dstY0,
GLint dstX1,
GLint dstY1,
GLbitfield mask,
GLenum filter))
COGL_FEATURE_END ()
COGL_FEATURE_BEGIN (element_index_uint, 255, 255,
"OES\0",
"element_index_uint\0",