Oval and stroke AA rect now batch

src/gpu/GrGpu.cpp

Index: src/gpu/GrGpu.cpp
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index 1f01e124bf74a973348ad62706454482aaef2af6..489e51f4ad741e5dacb7bd85e06dcfa770650bc5 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -164,6 +164,40 @@ GrIndexBuffer* GrGpu::createIndexBuffer(size_t size, bool dynamic) {
     return this->onCreateIndexBuffer(size, dynamic);
 }
 
+GrIndexBuffer* GrGpu::createIndexBufferPattern(const uint16_t* pattern,
+                                               int patternSize,
+                                               int reps,
+                                               int vertCount,
+                                               bool isDynamic) {
+    size_t bufferSize = patternSize * reps * sizeof(uint16_t);
+    GrIndexBuffer* buffer = this->createIndexBuffer(bufferSize, isDynamic);
+    if (buffer) {
+        uint16_t* data = (uint16_t*) buffer->map();
+        bool useTempData = (NULL == data);
+        if (useTempData) {
+            data = SkNEW_ARRAY(uint16_t, reps * patternSize);
+        }
+        for (int i = 0; i < reps; ++i) {

[robertphillips, 2014/10/21 19:12:37]

Fix comment ?

+            // Each AA filled rect is drawn with 8 vertices and 10 triangles (8 around
+            // the inner rect (for AA) and 2 for the inner rect.
+            int baseIdx = i * patternSize;
+            uint16_t baseVert = (uint16_t)(i * vertCount);
+            for (int j = 0; j < patternSize; ++j) {
+                data[baseIdx+j] = baseVert + pattern[j];
+            }
+        }
+        if (useTempData) {
+            if (!buffer->updateData(data, bufferSize)) {
+                SkFAIL("Can't get indices into buffer!");
+            }
+            SkDELETE_ARRAY(data);
+        } else {
+            buffer->unmap();
+        }
+    }
+    return buffer;
+}
+
 void GrGpu::clear(const SkIRect* rect,
                   GrColor color,
                   bool canIgnoreRect,