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i965: Revert the VBOs-in-system-memory hack.

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It didn't change performance on Lightsmark or Nexuiz, which both used
DYNAMIC_DRAW buffers, but it was killing performance (40% CPU wasted pwriting
buffers) on a closed-source app we're looking at.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt
2012-07-05 13:43:43 -07:00
parent b5c037f6b1
commit f9b3e257d1
1 changed files with 5 additions and 8 deletions
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src/mesa/drivers/dri/intel/intel_buffer_objects.c
+5 -8
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@@ -140,15 +140,11 @@ intel_bufferobj_data(struct gl_context * ctx,
intel_obj->sys_buffer = NULL;
if (size != 0) {
if (usage == GL_DYNAMIC_DRAW
#ifdef I915
/* On pre-965, stick VBOs in system memory, as we're always doing
* swtnl with their contents anyway.
*/
|| target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER
#endif
)
{
/* On pre-965, stick VBOs in system memory, as we're always doing
* swtnl with their contents anyway.
*/
if (target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER) {
intel_obj->sys_buffer = malloc(size);
if (intel_obj->sys_buffer != NULL) {
if (data != NULL)
@@ -156,6 +152,7 @@ intel_bufferobj_data(struct gl_context * ctx,
return true;
}
}
#endif
intel_bufferobj_alloc_buffer(intel, intel_obj);
if (!intel_obj->buffer)
return false;