diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_bufferobjects.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c index 8ca7e4c379b..0c5fecea51f 100644 --- a/src/mesa/state_tracker/st_cb_bufferobjects.c +++ b/src/mesa/state_tracker/st_cb_bufferobjects.c @@ -182,25 +182,31 @@ st_bufferobj_data(struct gl_context *ctx, { struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = pipe->screen; struct st_buffer_object *st_obj = st_buffer_object(obj); unsigned bind, pipe_usage, pipe_flags = 0; if (target != GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD && - size && data && st_obj->buffer && + size && st_obj->buffer && st_obj->Base.Size == size && st_obj->Base.Usage == usage && st_obj->Base.StorageFlags == storageFlags) { - /* Just discard the old contents and write new data. - * This should be the same as creating a new buffer, but we avoid - * a lot of validation in Mesa. - */ - struct pipe_box box; - - u_box_1d(0, size, &box); - pipe->transfer_inline_write(pipe, st_obj->buffer, 0, - PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE, - &box, data, 0, 0); - return GL_TRUE; + if (data) { + /* Just discard the old contents and write new data. + * This should be the same as creating a new buffer, but we avoid + * a lot of validation in Mesa. + */ + struct pipe_box box; + + u_box_1d(0, size, &box); + pipe->transfer_inline_write(pipe, st_obj->buffer, 0, + PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE, + &box, data, 0, 0); + return GL_TRUE; + } else if (screen->get_param(screen, PIPE_CAP_INVALIDATE_BUFFER)) { + pipe->invalidate_resource(pipe, st_obj->buffer); + return GL_TRUE; + } } st_obj->Base.Size = size; @@ -288,7 +294,6 @@ 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); |