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glamor: Use buffer_storage

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v2:
  - Make the default buffer size a #define. (by Markus Wick)
  - Fix the return offset for mapping with buffer_storage.  (oops!)
v3:
  - Avoid GL error at first rendering from unmapping no buffer.
  - Rebase on the glBindBuffer(GL_ARRAY_BUFFER, 0) change.
v4: Rebase on Markus's vbo init changes.
v5: Fix missing put_context() in the buffer_storage fallback path.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus at selfnet.de>
This commit is contained in:
Eric Anholt 2014-02-25 16:56:54 -08:00
commit 2843a2f9b5
3 changed files with 54 additions and 2 deletions
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2
glamor/glamor.c
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@ -353,6 +353,8 @@ glamor_init(ScreenPtr screen, unsigned int flags)
glamor_gl_has_extension("GL_MESA_pack_invert");
glamor_priv->has_fbo_blit =
glamor_gl_has_extension("GL_EXT_framebuffer_blit");
glamor_priv->has_buffer_storage =
glamor_gl_has_extension("GL_ARB_buffer_storage");
glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &glamor_priv->max_fbo_size);
#ifdef MAX_FBO_SIZE
glamor_priv->max_fbo_size = MAX_FBO_SIZE;