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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef picture_utils_DEFINED
#define picture_utils_DEFINED
#include "SkBitmap.h"
class SkData;
class SkString;
namespace sk_tools {
// since PNG insists on unpremultiplying our alpha, we take no precision
// chances and force all pixels to be 100% opaque, otherwise on compare we
// may not get a perfect match.
//
// This expects a bitmap with a config type of 8888 and for the pixels to
// not be on the GPU.
void force_all_opaque(const SkBitmap& bitmap);
/**
* Replaces all instances of oldChar with newChar in str.
*/
void replace_char(SkString* str, const char oldChar, const char newChar);
// Returns true if the string ends with %
bool is_percentage(const char* const string);
// Prepares the bitmap so that it can be written.
//
// Specifically, it configures the bitmap, allocates pixels and then
// erases the pixels to transparent black.
void setup_bitmap(SkBitmap* bitmap, int width, int height);
/**
* Write a bitmap file to disk.
*
* @param bm the bitmap to record
* @param dirPath directory within which to write the image file
* @param subdirOrNull subdirectory within dirPath, or nullptr to just write into dirPath
* @param baseName last part of the filename
*
* @return true if written out successfully
*/
bool write_bitmap_to_disk(const SkBitmap& bm, const SkString& dirPath,
const char *subdirOrNull, const SkString& baseName);
// Return raw unpremultiplied RGBA bytes, suitable for storing in a PNG. The output
// colors are assumed to be sRGB values. This is only guaranteed to work for the
// cases that are currently emitted by tools:
// Linear premul 8888, sRGB premul 8888, Linear premul F16
sk_sp<SkData> encode_bitmap_for_png(SkBitmap bitmap);
} // namespace sk_tools
#endif // picture_utils_DEFINED
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