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author | Eric Anholt <eric@anholt.net> | 2009-11-12 10:45:05 -0800 |
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committer | Eric Anholt <eric@anholt.net> | 2009-11-13 13:18:56 -0800 |
commit | 3c05c1eb6326dc28e8ab073d179eb669e5699f4b (patch) | |
tree | 2f355c15c7e9e188e320ad43a69aafd49ff98cd0 /src/mesa | |
parent | 4e50ce35ee1376062de2c6fa69da144be30a61e2 (diff) | |
download | external_mesa3d-3c05c1eb6326dc28e8ab073d179eb669e5699f4b.zip external_mesa3d-3c05c1eb6326dc28e8ab073d179eb669e5699f4b.tar.gz external_mesa3d-3c05c1eb6326dc28e8ab073d179eb669e5699f4b.tar.bz2 |
intel: When subdataing a busy buffer, use a temporary and blit in.
This cuts a massive number of waits in ET:QW, which uses a VBO ringbuffer.
Unfortunately it doesn't BufferData when wrapping back to 0, so we can't
be clever with tracking what's been initialized.
Diffstat (limited to 'src/mesa')
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffer_objects.c | 19 |
1 files changed, 16 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 ea9d5a6..669becd 100644 --- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c +++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c @@ -209,10 +209,23 @@ intel_bufferobj_subdata(GLcontext * ctx, memcpy((char *)intel_obj->sys_buffer + offset, data, size); else { /* Flush any existing batchbuffer that might reference this data. */ - if (drm_intel_bo_references(intel->batch->buf, intel_obj->buffer)) - intelFlush(ctx); + if (drm_intel_bo_busy(intel_obj->buffer) || + drm_intel_bo_references(intel->batch->buf, intel_obj->buffer)) { + drm_intel_bo *temp_bo; - dri_bo_subdata(intel_obj->buffer, offset, size, data); + temp_bo = drm_intel_bo_alloc(intel->bufmgr, "subdata temp", size, 64); + + drm_intel_bo_subdata(temp_bo, 0, size, data); + + intel_emit_linear_blit(intel, + intel_obj->buffer, offset, + temp_bo, 0, + size); + + drm_intel_bo_unreference(temp_bo); + } else { + dri_bo_subdata(intel_obj->buffer, offset, size, data); + } } } |