commit 8e083eee8ece4e1acaeb01ae4192050969c4b0c6
author Robert Phillips <robertphillips@google.com> Fri Nov 01 15:07:15 2019 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Nov 01 21:46:51 2019 +0000
tree 253936c399d480caa385be865b316827bae88ae3
parent ef7677fc60fc2ce9c5986743a07f64dfe9709cf2

Tighten up min and max vertex indices passed to GrTextureOp's meshes

Change-Id: Ie06c763f8677c395fdc4995bf78b9aff95040764
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/252192
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

src/gpu/ops/GrQuadPerEdgeAA.cpp

diff --git a/src/gpu/ops/GrQuadPerEdgeAA.cpp b/src/gpu/ops/GrQuadPerEdgeAA.cpp
index 52b17c6..8735ec1 100644
--- a/src/gpu/ops/GrQuadPerEdgeAA.cpp
+++ b/src/gpu/ops/GrQuadPerEdgeAA.cpp
@@ -166,21 +166,26 @@
     SkASSERT(indexBuffer);
 
     int baseIndex, numIndicesToDraw;
+    int minVertex, maxVertex;
 
     if (spec.indexBufferOption() == IndexBufferOption::kPictureFramed) {
         SkASSERT(runningQuadCount + quadsInDraw <= GrResourceProvider::MaxNumAAQuads());
         // AA uses 8 vertices and 30 indices per quad, basically nested rectangles
         baseIndex = runningQuadCount * GrResourceProvider::NumIndicesPerAAQuad();
         numIndicesToDraw = quadsInDraw * GrResourceProvider::NumIndicesPerAAQuad();
+        minVertex = runningQuadCount * GrResourceProvider::NumVertsPerAAQuad();
+        maxVertex = (runningQuadCount + quadsInDraw) * GrResourceProvider::NumVertsPerAAQuad();
     } else {
         SkASSERT(runningQuadCount + quadsInDraw <= GrResourceProvider::MaxNumNonAAQuads());
         // Non-AA uses 4 vertices and 6 indices per quad
         baseIndex = runningQuadCount * GrResourceProvider::NumIndicesPerNonAAQuad();
         numIndicesToDraw = quadsInDraw * GrResourceProvider::NumIndicesPerNonAAQuad();
+        minVertex = runningQuadCount * GrResourceProvider::NumVertsPerNonAAQuad();
+        maxVertex = (runningQuadCount + quadsInDraw) * GrResourceProvider::NumVertsPerNonAAQuad();
     }
 
     mesh->setPrimitiveType(GrPrimitiveType::kTriangles);
-    mesh->setIndexed(std::move(indexBuffer), numIndicesToDraw, baseIndex, 0, maxVerts-1,
+    mesh->setIndexed(std::move(indexBuffer), numIndicesToDraw, baseIndex, minVertex, maxVertex,
                      GrPrimitiveRestart::kNo);
     mesh->setVertexData(std::move(vertexBuffer), absVertBufferOffset);
 }