diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffer_objects.c | 39 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffer_objects.h | 2 |
2 files changed, 40 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c b/src/mesa/drivers/dri/intel/intel_buffer_objects.c index 1b64c68157..c31fe91ad6 100644 --- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c +++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c @@ -102,6 +102,7 @@ intel_bufferobj_free(GLcontext * ctx, struct gl_buffer_object *obj) assert(intel_obj); assert(!obj->Pointer); /* Mesa should have unmapped it */ + _mesa_free(intel_obj->sys_buffer); if (intel_obj->region) { intel_bufferobj_release_region(intel, intel_obj); } @@ -142,7 +143,23 @@ intel_bufferobj_data(GLcontext * ctx, dri_bo_unreference(intel_obj->buffer); intel_obj->buffer = NULL; } + _mesa_free(intel_obj->sys_buffer); + intel_obj->sys_buffer = NULL; + if (size != 0) { +#ifdef I915 + /* 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 = _mesa_malloc(size); + if (intel_obj->sys_buffer != NULL) { + if (data != NULL) + memcpy(intel_obj->sys_buffer, data, size); + return; + } + } +#endif intel_bufferobj_alloc_buffer(intel, intel_obj); if (data != NULL) @@ -172,7 +189,10 @@ intel_bufferobj_subdata(GLcontext * ctx, if (intel_obj->region) intel_bufferobj_cow(intel, intel_obj); - dri_bo_subdata(intel_obj->buffer, offset, size, data); + if (intel_obj->sys_buffer) + memcpy((char *)intel_obj->sys_buffer + offset, data, size); + else + dri_bo_subdata(intel_obj->buffer, offset, size, data); } @@ -209,6 +229,11 @@ intel_bufferobj_map(GLcontext * ctx, assert(intel_obj); + if (intel_obj->sys_buffer) { + obj->Pointer = intel_obj->sys_buffer; + return obj->Pointer; + } + if (intel_obj->region) intel_bufferobj_cow(intel, intel_obj); @@ -265,6 +290,18 @@ intel_bufferobj_buffer(struct intel_context *intel, } } + if (intel_obj->buffer == NULL) { + intel_bufferobj_alloc_buffer(intel, intel_obj); + intel_bufferobj_subdata(&intel->ctx, + GL_ARRAY_BUFFER_ARB, + 0, + intel_obj->Base.Size, + intel_obj->sys_buffer, + &intel_obj->Base); + _mesa_free(intel_obj->sys_buffer); + intel_obj->sys_buffer = NULL; + } + return intel_obj->buffer; } diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.h b/src/mesa/drivers/dri/intel/intel_buffer_objects.h index 7ef723833c..0431015631 100644 --- a/src/mesa/drivers/dri/intel/intel_buffer_objects.h +++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.h @@ -42,6 +42,8 @@ struct intel_buffer_object { struct gl_buffer_object Base; dri_bo *buffer; /* the low-level buffer manager's buffer handle */ + /** System memory buffer data, if not using a BO to store the data. */ + void *sys_buffer; struct intel_region *region; /* Is there a zero-copy texture associated with this (pixel) |