diff options
| -rw-r--r-- | src/mesa/state_tracker/st_cb_fbo.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c index 1a63e77826f..3bd7fd4ad27 100644 --- a/src/mesa/state_tracker/st_cb_fbo.c +++ b/src/mesa/state_tracker/st_cb_fbo.c @@ -763,6 +763,30 @@ st_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) /** + * Called by ctx->Driver.DiscardFramebuffer + */ +static void +st_discard_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb, + struct gl_renderbuffer_attachment *att) +{ + struct st_context *st = st_context(ctx); + struct pipe_resource *prsc; + + if (!att->Renderbuffer) + return; + + prsc = st_renderbuffer(att->Renderbuffer)->surface->texture; + + /* using invalidate_resource will only work for simple 2D resources */ + if (prsc->depth0 != 1 || prsc->array_size != 1 || prsc->last_level != 0) + return; + + if (st->pipe->invalidate_resource) + st->pipe->invalidate_resource(st->pipe, prsc); +} + + +/** * Called via glDrawBuffer. We only provide this driver function so that we * can check if we need to allocate a new renderbuffer. Specifically, we * don't usually allocate a front color buffer when using a double-buffered @@ -939,6 +963,7 @@ st_init_fbo_functions(struct dd_function_table *functions) functions->RenderTexture = st_render_texture; functions->FinishRenderTexture = st_finish_render_texture; functions->ValidateFramebuffer = st_validate_framebuffer; + functions->DiscardFramebuffer = st_discard_framebuffer; functions->DrawBufferAllocate = st_DrawBufferAllocate; functions->ReadBuffer = st_ReadBuffer; |