commit be7fc466271b225d4f286856eb14a1cadb103d0a
author Greg Daniel <egdaniel@google.com> Thu Jan 03 16:40:42 2019 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Jan 04 14:08:25 2019 +0000
tree 5fd91c08d5787d824d1a6ea9bde42ff1cd2d6188
parent 5f1692c60a43bfb9f9039e288862c82a9f7cbc8e

Restrict ops that can be executed when we have a wrapped vulkan secondary command buffer.

Bug: skia:
Change-Id: Ib58ba23053d019988a23cfb489808bad3122d867
Reviewed-on: https://skia-review.googlesource.com/c/178936
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>

src/gpu/vk/GrVkGpu.cpp

diff --git a/src/gpu/vk/GrVkGpu.cpp b/src/gpu/vk/GrVkGpu.cpp
index 7d71d22..59764ad 100644
--- a/src/gpu/vk/GrVkGpu.cpp
+++ b/src/gpu/vk/GrVkGpu.cpp
@@ -1773,6 +1773,15 @@
                             GrSurface* src, GrSurfaceOrigin srcOrigin,
                             const SkIRect& srcRect, const SkIPoint& dstPoint,
                             bool canDiscardOutsideDstRect) {
+#ifdef SK_DEBUG
+    if (GrVkRenderTarget* srcRT = static_cast<GrVkRenderTarget*>(src->asRenderTarget())) {
+        SkASSERT(!srcRT->wrapsSecondaryCommandBuffer());
+    }
+    if (GrVkRenderTarget* dstRT = static_cast<GrVkRenderTarget*>(dst->asRenderTarget())) {
+        SkASSERT(!dstRT->wrapsSecondaryCommandBuffer());
+    }
+#endif
+
     GrPixelConfig dstConfig = dst->config();
     GrPixelConfig srcConfig = src->config();
 
@@ -1799,6 +1808,9 @@
     GrRenderTarget* dstRT = dst->asRenderTarget();
     if (dstRT) {
         GrVkRenderTarget* vkRT = static_cast<GrVkRenderTarget*>(dstRT);
+        if (vkRT->wrapsSecondaryCommandBuffer()) {
+            return false;
+        }
         dstImage = vkRT->numColorSamples() > 1 ? vkRT->msaaImage() : vkRT;
     } else {
         SkASSERT(dst->asTexture());
@@ -1839,6 +1851,12 @@
     GrVkImage* image = nullptr;
     GrVkRenderTarget* rt = static_cast<GrVkRenderTarget*>(surface->asRenderTarget());
     if (rt) {
+        // Reading from render targets that wrap a secondary command buffer is not allowed since
+        // it would require us to know the VkImage, which we don't have, as well as need us to
+        // stop and start the VkRenderPass which we don't have access to.
+        if (rt->wrapsSecondaryCommandBuffer()) {
+            return false;
+        }
         // resolve the render target if necessary
         switch (rt->getResolveType()) {
             case GrVkRenderTarget::kCantResolve_ResolveType:
@@ -2039,6 +2057,7 @@
                                            const VkClearValue* colorClear,
                                            GrVkRenderTarget* target, GrSurfaceOrigin origin,
                                            const SkIRect& bounds) {
+    SkASSERT (!target->wrapsSecondaryCommandBuffer());
     const SkIRect* pBounds = &bounds;
     SkIRect flippedBounds;
     if (kBottomLeft_GrSurfaceOrigin == origin) {