v3dv: consider render area when configuring supertiles

If the render area is restricted to a section of the framebuffer, there
is no need to consider all the framebuffer size when configuring the
supertiles, as only the supertiles coordinates of the affected area will
be submitted.

This allow to create supertiles smaller than the ones in case
considering the full screen, reducing the tiles that need to be
processed.

This also fixes https://gitlab.freedesktop.org/mesa/mesa/-/issues/13218.

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35257>

src/broadcom/vulkan/v3dv_cmd_buffer.c

@@ -1788,9 +1788,14 @@ cmd_buffer_subpass_create_job(struct v3dv_cmd_buffer *cmd_buffer,
          layers = util_last_bit(subpass->view_mask);
       }
 
+      uint32_t width =
+         state->render_area.offset.x + state->render_area.extent.width;
+      uint32_t height =
+         state->render_area.offset.y + state->render_area.extent.height;
+
       v3dv_job_start_frame(job,
-                           framebuffer->width,
-                           framebuffer->height,
+                           width,
+                           height,
                            layers,
                            true, false,
                            subpass->color_count,