-void r600_draw_rectangle(struct blitter_context *blitter,
- int x1, int y1, int x2, int y2, float depth,
- enum blitter_attrib_type type,
- const union pipe_color_union *attrib)
-{
- struct r600_common_context *rctx =
- (struct r600_common_context*)util_blitter_get_pipe(blitter);
- struct pipe_viewport_state viewport;
- struct pipe_resource *buf = NULL;
- unsigned offset = 0;
- float *vb;
-
- if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) {
- util_blitter_draw_rectangle(blitter, x1, y1, x2, y2, depth, type, attrib);
- return;
- }
-
- /* Some operations (like color resolve on r6xx) don't work
- * with the conventional primitive types.
- * One that works is PT_RECTLIST, which we use here. */
-
- /* setup viewport */
- viewport.scale[0] = 1.0f;
- viewport.scale[1] = 1.0f;
- viewport.scale[2] = 1.0f;
- viewport.translate[0] = 0.0f;
- viewport.translate[1] = 0.0f;
- viewport.translate[2] = 0.0f;
- rctx->b.set_viewport_states(&rctx->b, 0, 1, &viewport);
-
- /* Upload vertices. The hw rectangle has only 3 vertices,
- * I guess the 4th one is derived from the first 3.
- * The vertex specification should match u_blitter's vertex element state. */
- u_upload_alloc(rctx->b.stream_uploader, 0, sizeof(float) * 24,
- rctx->screen->info.tcc_cache_line_size,
- &offset, &buf, (void**)&vb);
- if (!buf)
- return;
-
- vb[0] = x1;
- vb[1] = y1;
- vb[2] = depth;
- vb[3] = 1;
-
- vb[8] = x1;
- vb[9] = y2;
- vb[10] = depth;
- vb[11] = 1;
-
- vb[16] = x2;
- vb[17] = y1;
- vb[18] = depth;
- vb[19] = 1;
-
- if (attrib) {
- memcpy(vb+4, attrib->f, sizeof(float)*4);
- memcpy(vb+12, attrib->f, sizeof(float)*4);
- memcpy(vb+20, attrib->f, sizeof(float)*4);
- }
-
- /* draw */
- util_draw_vertex_buffer(&rctx->b, NULL, buf, blitter->vb_slot, offset,
- R600_PRIM_RECTANGLE_LIST, 3, 2);
- pipe_resource_reference(&buf, NULL);
-}
-