blob: a90965b51ce5085480cd337d26b317cbac492398 [file] [log] [blame]
/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrCpuBuffer_DEFINED
#define GrCpuBuffer_DEFINED
#include "src/base/SkSafeMath.h"
#include "src/gpu/ganesh/GrBuffer.h"
#include "src/gpu/ganesh/GrNonAtomicRef.h"
class GrCpuBuffer final : public GrNonAtomicRef<GrCpuBuffer>, public GrBuffer {
public:
static sk_sp<GrCpuBuffer> Make(size_t size) {
SkASSERT(size > 0);
SkSafeMath sm;
size_t combinedSize = sm.add(sizeof(GrCpuBuffer), size);
if (!sm.ok()) {
SK_ABORT("Buffer size is too big.");
}
auto mem = ::operator new(combinedSize);
return sk_sp<GrCpuBuffer>(new (mem) GrCpuBuffer((char*)mem + sizeof(GrCpuBuffer), size));
}
// TODO(b/30449950): use sized delete once P0722R3 is available
static void operator delete(void* p) { ::operator delete(p); }
void ref() const override { GrNonAtomicRef<GrCpuBuffer>::ref(); }
void unref() const override { GrNonAtomicRef<GrCpuBuffer>::unref(); }
size_t size() const override { return fSize; }
bool isCpuBuffer() const override { return true; }
char* data() { return reinterpret_cast<char*>(fData); }
const char* data() const { return reinterpret_cast<const char*>(fData); }
private:
GrCpuBuffer(void* data, size_t size) : fData(data), fSize(size) {}
void* fData;
size_t fSize;
};
#endif