lavapipe: don't write to pending clear aspects in cmd buffer

When the cmd buffer is recorded, we record the attachments state
into it, however we use the pending clear aspects to keep track
of clears, but it should be kept in the state no overwrritten
in the cmd buffer.

Allocate some memory to store this hanging off the state.

This fixes gears and radialblur demos.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7416>

src/gallium/frontends/lavapipe/lvp_execute.c

@@ -120,6 +120,8 @@ struct rendering_state {
    unsigned min_samples;
 
    struct lvp_attachment_state *attachments;
+   VkImageAspectFlags *pending_clear_aspects;
+   int num_pending_aspects;
 };
 
 static void emit_compute_state(struct rendering_state *state)
@@ -1082,7 +1084,7 @@ attachment_needs_clear(struct rendering_state *state,
                        uint32_t a)
 {
    return (a != VK_ATTACHMENT_UNUSED &&
-           state->attachments[a].pending_clear_aspects);
+           state->pending_clear_aspects[a]);
 }
 
 static bool
@@ -1134,7 +1136,7 @@ static void render_subpass_clear(struct rendering_state *state)
                                        state->render_area.extent.width, state->render_area.extent.height,
                                        false);
 
-      state->attachments[a].pending_clear_aspects = 0;
+      state->pending_clear_aspects[a] = 0;
    }
 
    if (subpass->depth_stencil_attachment) {
@@ -1171,7 +1173,7 @@ static void render_subpass_clear(struct rendering_state *state)
                                              state->render_area.offset.x, state->render_area.offset.y,
                                              state->render_area.extent.width, state->render_area.extent.height,
                                              false);
-         state->attachments[ds].pending_clear_aspects = 0;
+         state->pending_clear_aspects[ds] = 0;
       }
    }
 
@@ -1262,6 +1264,14 @@ static void handle_begin_render_pass(struct lvp_cmd_buffer_entry *cmd,
    state->framebuffer.height = state->vk_framebuffer->height;
    state->framebuffer.layers = state->vk_framebuffer->layers;
 
+   if (state->num_pending_aspects < state->pass->attachment_count) {
+      state->pending_clear_aspects = realloc(state->pending_clear_aspects, sizeof(VkImageAspectFlags) * state->pass->attachment_count);
+      state->num_pending_aspects = state->pass->attachment_count;
+   }
+
+   for (unsigned a = 0; a < state->pass->attachment_count; a++) {
+      state->pending_clear_aspects[a] = state->attachments[a].pending_clear_aspects;
+   }
    begin_render_subpass(state, 0);
 }
 
@@ -2473,5 +2483,6 @@ VkResult lvp_execute_cmds(struct lvp_device *device,
       state.pctx->set_shader_images(state.pctx, s, 0, device->physical_device->max_images, NULL);
    }
 
+   free(state.pending_clear_aspects);
    return VK_SUCCESS;
 }