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meta: Pass null pointer for the pixel data to avoid unnecessary data upload

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to a temporary pbo created in _mesa_meta_pbo_GetTexSubImage().

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Anuj Phogat 2015-02-23 10:56:14 -08:00
parent 068ba4ac78
commit 688309374d
1 changed files with 4 additions and 1 deletions
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5
src/mesa/drivers/common/meta_tex_subimage.c
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@ -89,8 +89,11 @@ create_texture_for_pbo(struct gl_context *ctx, bool create_pbo,
*/
_mesa_BindBuffer(pbo_target, *tmp_pbo);
/* In case of GL_PIXEL_PACK_BUFFER, pass null pointer for the pixel
* data to avoid unnecessary data copying in _mesa_BufferData().
*/
if (is_pixel_pack)
_mesa_BufferData(pbo_target, row_stride * height, pixels,
_mesa_BufferData(pbo_target, row_stride * height, NULL,
GL_STREAM_READ);
else
_mesa_BufferData(pbo_target, row_stride * height, pixels,