chromium/third_party/skia/src/core/SkMask.cpp

/*
 * Copyright 2007 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/core/SkMask.h"

#include "include/private/base/SkMalloc.h"
#include "include/private/base/SkMath.h"
#include "include/private/base/SkTFitsIn.h"
#include "include/private/base/SkTo.h"
#include "src/base/SkSafeMath.h"

#include <array>
#include <climits>

/** returns the product if it is positive and fits in 31 bits. Otherwise this
    returns 0.
 */
static int32_t safeMul32(int32_t a, int32_t b) { … }

size_t SkMask::computeImageSize() const { … }

size_t SkMask::computeTotalImageSize() const { … }

/** We explicitly use this allocator for SkBimap pixels, so that we can
    freely assign memory allocated by one class to the other.
*/
uint8_t* SkMaskBuilder::AllocImage(size_t size, AllocType at) { … }

/** We explicitly use this allocator for SkBimap pixels, so that we can
    freely assign memory allocated by one class to the other.
*/
void SkMaskBuilder::FreeImage(void* image) { … }

SkMaskBuilder SkMaskBuilder::PrepareDestination(int radiusX, int radiusY, const SkMask& src) { … }


///////////////////////////////////////////////////////////////////////////////

static const int gMaskFormatToShift[] = …;

static int maskFormatToShift(SkMask::Format format) { … }

const void* SkMask::getAddr(int x, int y) const { … }