radv: fix subpass image transitions with multiviews

The driver needs to decompress all image layers if a fast
depth/color clear has been performed.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index aebf93b..c61310f 100644 (file)
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -2315,6 +2315,17 @@ static void radv_handle_subpass_image_transition(struct radv_cmd_buffer *cmd_buf
        range.baseArrayLayer = view->base_layer;
        range.layerCount = cmd_buffer->state.framebuffer->layers;
 
+       if (cmd_buffer->state.subpass && cmd_buffer->state.subpass->view_mask) {
+               /* If the current subpass uses multiview, the driver might have
+                * performed a fast color/depth clear to the whole image
+                * (including all layers). To make sure the driver will
+                * decompress the image correctly (if needed), we have to
+                * account for the "real" number of layers. If the view mask is
+                * sparse, this will decompress more layers than needed.
+                */
+               range.layerCount = util_last_bit(cmd_buffer->state.subpass->view_mask);
+       }
+
        radv_handle_image_transition(cmd_buffer,
                                     view->image,
                                     cmd_buffer->state.attachments[idx].current_layout,