diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_buffer_objects.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffer_objects.c | 66 |
1 files changed, 62 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c b/src/mesa/drivers/dri/intel/intel_buffer_objects.c index c849e4869e..23ba3b9ef6 100644 --- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c +++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c @@ -35,6 +35,9 @@ #include "intel_batchbuffer.h" #include "intel_regions.h" +static GLboolean +intel_bufferobj_unmap(GLcontext * ctx, + GLenum target, struct gl_buffer_object *obj); /** Allocates a new dri_bo to store the data for the buffer object. */ static void @@ -100,8 +103,15 @@ intel_bufferobj_free(GLcontext * ctx, struct gl_buffer_object *obj) struct intel_buffer_object *intel_obj = intel_buffer_object(obj); assert(intel_obj); - assert(!obj->Pointer); /* Mesa should have unmapped it */ + /* Buffer objects are automatically unmapped when deleting according + * to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy + * (though it does if you call glDeleteBuffers) + */ + if (obj->Pointer) + intel_bufferobj_unmap(ctx, 0, obj); + + _mesa_free(intel_obj->sys_buffer); if (intel_obj->region) { intel_bufferobj_release_region(intel, intel_obj); } @@ -142,7 +152,23 @@ 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 +198,10 @@ 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); } @@ -205,9 +234,15 @@ 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); + GLboolean write_only = (access == GL_WRITE_ONLY_ARB); 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); @@ -216,7 +251,14 @@ intel_bufferobj_map(GLcontext * ctx, return NULL; } - dri_bo_map(intel_obj->buffer, !read_only); + if (write_only && intel->intelScreen->kernel_exec_fencing) { + drm_intel_gem_bo_map_gtt(intel_obj->buffer); + intel_obj->mapped_gtt = GL_TRUE; + } else { + drm_intel_bo_map(intel_obj->buffer, !read_only); + intel_obj->mapped_gtt = GL_FALSE; + } + obj->Pointer = intel_obj->buffer->virtual; return obj->Pointer; } @@ -234,7 +276,11 @@ intel_bufferobj_unmap(GLcontext * ctx, assert(intel_obj); if (intel_obj->buffer != NULL) { assert(obj->Pointer); - dri_bo_unmap(intel_obj->buffer); + if (intel_obj->mapped_gtt) { + drm_intel_gem_bo_unmap_gtt(intel_obj->buffer); + } else { + drm_intel_bo_unmap(intel_obj->buffer); + } obj->Pointer = NULL; } return GL_TRUE; @@ -253,6 +299,18 @@ 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; } |