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authorEric Anholt <eric@anholt.net>2009-04-22 16:24:42 -0700
committerEric Anholt <eric@anholt.net>2009-04-23 11:13:04 -0700
commit4f4907d69f9020ce17aef21b6431d2dd65e01982 (patch)
tree7dfe250cc35dba6801ca839310339edd42beaa88 /src/mesa/drivers/dri/intel
parentf3c7d6ff866cdd96cdd55baee94f58698a9656a3 (diff)
intel: Take advantage of GL_READ_ONLY_ARB to map to GEM bo_map write flag.
This is a CPU win in general, but in particular reduces the pain of Mesa's calculation of min/max indices in DrawElements (wtf?).
Diffstat (limited to 'src/mesa/drivers/dri/intel')
-rw-r--r--src/mesa/drivers/dri/intel/intel_buffer_objects.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
index b7c7eeb368..c849e4869e 100644
--- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
@@ -204,9 +204,8 @@ intel_bufferobj_map(GLcontext * ctx,
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
+ GLboolean read_only = (access == GL_READ_ONLY_ARB);
- /* XXX: Translate access to flags arg below:
- */
assert(intel_obj);
if (intel_obj->region)
@@ -217,7 +216,7 @@ intel_bufferobj_map(GLcontext * ctx,
return NULL;
}
- dri_bo_map(intel_obj->buffer, GL_TRUE);
+ dri_bo_map(intel_obj->buffer, !read_only);
obj->Pointer = intel_obj->buffer->virtual;
return obj->Pointer;
}