3c579dcff8
Planning to re-use this code in skiaserve in an upcoming change. TBR=mtklein@google.com BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1901113002 Review URL: https://codereview.chromium.org/1901113002
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef picture_utils_DEFINED
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#define picture_utils_DEFINED
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#include "SkBitmap.h"
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class SkData;
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class SkString;
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namespace sk_tools {
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// since PNG insists on unpremultiplying our alpha, we take no precision
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// chances and force all pixels to be 100% opaque, otherwise on compare we
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// may not get a perfect match.
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//
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// This expects a bitmap with a config type of 8888 and for the pixels to
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// not be on the GPU.
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void force_all_opaque(const SkBitmap& bitmap);
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/**
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* Replaces all instances of oldChar with newChar in str.
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*/
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void replace_char(SkString* str, const char oldChar, const char newChar);
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// Returns true if the string ends with %
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bool is_percentage(const char* const string);
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// Prepares the bitmap so that it can be written.
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//
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// Specifically, it configures the bitmap, allocates pixels and then
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// erases the pixels to transparent black.
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void setup_bitmap(SkBitmap* bitmap, int width, int height);
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/**
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* Write a bitmap file to disk.
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*
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* @param bm the bitmap to record
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* @param dirPath directory within which to write the image file
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* @param subdirOrNull subdirectory within dirPath, or nullptr to just write into dirPath
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* @param baseName last part of the filename
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*
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* @return true if written out successfully
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*/
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bool write_bitmap_to_disk(const SkBitmap& bm, const SkString& dirPath,
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const char *subdirOrNull, const SkString& baseName);
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// Return raw unpremultiplied RGBA bytes, suitable for storing in a PNG. The output
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// colors are assumed to be sRGB values. This is only guaranteed to work for the
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// cases that are currently emitted by tools:
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// Linear premul 8888, sRGB premul 8888, Linear premul F16
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sk_sp<SkData> encode_bitmap_for_png(SkBitmap bitmap);
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} // namespace sk_tools
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#endif // picture_utils_DEFINED
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