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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrVertexBuffer_DEFINED
#define GrVertexBuffer_DEFINED
#include "GrGeometryBuffer.h"
class GrVertexBuffer : public GrGeometryBuffer {
public:
static void ComputeScratchKey(size_t size, bool dynamic, GrScratchKey* key) {
static const GrScratchKey::ResourceType kType = GrScratchKey::GenerateResourceType();
GrScratchKey::Builder builder(key, kType, 2);
builder[0] = SkToUInt(size);
builder[1] = dynamic ? 1 : 0;
}
protected:
GrVertexBuffer(GrGpu* gpu, size_t gpuMemorySize, bool dynamic, bool cpuBacked)
: INHERITED(gpu, gpuMemorySize, dynamic, cpuBacked) {
// We currently only make buffers scratch if they're both pow2 sized and not cpuBacked.
if (!cpuBacked && SkIsPow2(gpuMemorySize)) {
GrScratchKey key;
ComputeScratchKey(gpuMemorySize, dynamic, &key);
this->setScratchKey(key);
}
}
private:
typedef GrGeometryBuffer INHERITED;
};
#endif
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