wait for flush_fence on image pattern descriptor update

diff --git a/src/vkvg_context_internal.c b/src/vkvg_context_internal.c
index d18e697524c3f1c11bf6a267f878c5c3440d578f..71fa25b91b133a6406d5a265ae314ae69464d7fe 100644 (file)
--- a/src/vkvg_context_internal.c
+++ b/src/vkvg_context_internal.c
@@ -581,6 +581,7 @@ void _update_cur_pattern (VkvgContext ctx, VkvgPattern pat) {
                if (lastPat->type == VKVG_PATTERN_TYPE_SURFACE){
                        //unbind current source surface by replacing it with empty texture
                        _flush_cmd_buff                         (ctx);
+                       _wait_flush_fence                       (ctx);
                        _update_descriptor_set          (ctx, ctx->pSurf->dev->emptyImg, ctx->dsSrc);
                }
                break;
@@ -604,8 +605,9 @@ void _update_cur_pattern (VkvgContext ctx, VkvgPattern pat) {
                                                          VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
                                                          VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
 
-               vkh_cmd_end (ctx->cmd);
-               _wait_and_submit_cmd (ctx);
+               vkh_cmd_end                             (ctx->cmd);
+               _wait_and_submit_cmd    (ctx);
+               _wait_flush_fence               (ctx);
 
                ctx->source = surf->img;