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* Copyright 2016 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkYUVASizeInfo_DEFINED
#define SkYUVASizeInfo_DEFINED
#include "include/codec/SkEncodedOrigin.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkSize.h"
struct SK_API SkYUVASizeInfo {
static constexpr auto kMaxCount = 4;
SkISize fSizes[kMaxCount];
* While the widths of the Y, U, V and A planes are not restricted, the
* implementation often requires that the width of the memory allocated
* for each plane be a multiple of 8.
* This struct allows us to inform the client how many "widthBytes"
* that we need. Note that we use the new idea of "widthBytes"
* because this idea is distinct from "rowBytes" (used elsewhere in
* Skia). "rowBytes" allow the last row of the allocation to not
* include any extra padding, while, in this case, every single row of
* the allocation must be at least "widthBytes".
size_t fWidthBytes[kMaxCount];
* YUVA data often comes from formats like JPEG that support EXIF orientation.
* Code that operates on the raw YUV data often needs to know that orientation.
SkEncodedOrigin fOrigin = kDefault_SkEncodedOrigin;
bool operator==(const SkYUVASizeInfo& that) const {
for (int i = 0; i < kMaxCount; ++i) {
SkASSERT((!fSizes[i].isEmpty() && fWidthBytes[i]) ||
(fSizes[i].isEmpty() && !fWidthBytes[i]));
if (fSizes[i] != that.fSizes[i] || fWidthBytes[i] != that.fWidthBytes[i]) {
return false;
return true;
size_t computeTotalBytes() const;
void computePlanes(void* base, void* planes[kMaxCount]) const;
#endif // SkYUVASizeInfo_DEFINED