Fixes in ReadPixels2 and yuv_texture gm to fix Vulkan validation issues.

Bug: skia:
Change-Id: Idfccdec9106bdc79a690da0e173a232a0cbe51a9
Reviewed-on: https://skia-review.googlesource.com/122955
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 1f1927ed2e..bade6e341c 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -1070,6 +1070,8 @@ bool GrContextPriv::readSurfacePixels2(GrSurfaceContext* src, int left, int top,
         if (canvas2DFastPath) {
             tempCtx = this->drawingManager()->makeRenderTargetContext(std::move(tempProxy), nullptr,
                                                                       nullptr);
+            SkASSERT(tempCtx->asRenderTargetContext());
+            tempCtx->asRenderTargetContext()->discard();
         } else {
             tempCtx = this->drawingManager()->makeTextureContext(
                     std::move(tempProxy), src->colorSpaceInfo().refColorSpace());