diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c b/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c index 55f36442a..f24805cf5 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c +++ b/mesalib/src/mesa/state_tracker/st_cb_bufferobjects.c @@ -186,7 +186,8 @@ st_bufferobj_data(struct gl_context *ctx, struct st_buffer_object *st_obj = st_buffer_object(obj); unsigned bind, pipe_usage, pipe_flags = 0; - if (size && data && st_obj->buffer && + if (target != GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD && + size && data && st_obj->buffer && st_obj->Base.Size == size && st_obj->Base.Usage == usage && st_obj->Base.StorageFlags == storageFlags) { @@ -256,8 +257,15 @@ st_bufferobj_data(struct gl_context *ctx, break; case GL_STREAM_DRAW: case GL_STREAM_COPY: - pipe_usage = PIPE_USAGE_STREAM; - break; + /* XXX: Remove this test and fall-through when we have PBO unpacking + * acceleration. Right now, PBO unpacking is done by the CPU, so we + * have to make sure CPU reads are fast. + */ + if (target != GL_PIXEL_UNPACK_BUFFER_ARB) { + pipe_usage = PIPE_USAGE_STREAM; + break; + } + /* fall through */ case GL_STATIC_READ: case GL_DYNAMIC_READ: case GL_STREAM_READ: @@ -280,6 +288,7 @@ st_bufferobj_data(struct gl_context *ctx, } if (size != 0) { + struct pipe_screen *screen = pipe->screen; struct pipe_resource buffer; memset(&buffer, 0, sizeof buffer); @@ -293,16 +302,22 @@ st_bufferobj_data(struct gl_context *ctx, buffer.depth0 = 1; buffer.array_size = 1; - st_obj->buffer = pipe->screen->resource_create(pipe->screen, &buffer); + if (target == GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD) { + st_obj->buffer = + screen->resource_from_user_memory(screen, &buffer, (void*)data); + } + else { + st_obj->buffer = screen->resource_create(screen, &buffer); + + if (st_obj->buffer && data) + pipe_buffer_write(pipe, st_obj->buffer, 0, size, data); + } if (!st_obj->buffer) { /* out of memory */ st_obj->Base.Size = 0; return GL_FALSE; } - - if (data) - pipe_buffer_write(pipe, st_obj->buffer, 0, size, data); } /* BufferData may change an array or uniform buffer, need to update it */ |