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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.
*/
#include "picture_utils.h"
#include "SkBitmap.h"
#include "SkColorPriv.h"
#include "SkHalf.h"
#include "SkImageEncoder.h"
#include "SkOSFile.h"
#include "SkOSPath.h"
#include "SkPM4fPriv.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkString.h"
#include "SkRasterPipeline.h"
#include "sk_tool_utils.h"
namespace sk_tools {
void force_all_opaque(const SkBitmap& bitmap) {
SkASSERT(kN32_SkColorType == bitmap.colorType());
if (kN32_SkColorType == bitmap.colorType()) {
return;
}
for (int y = 0; y < bitmap.height(); y++) {
for (int x = 0; x < bitmap.width(); x++) {
*bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
}
}
}
void replace_char(SkString* str, const char oldChar, const char newChar) {
if (nullptr == str) {
return;
}
for (size_t i = 0; i < str->size(); ++i) {
if (oldChar == str->operator[](i)) {
str->operator[](i) = newChar;
}
}
}
bool is_percentage(const char* const string) {
SkString skString(string);
return skString.endsWith("%");
}
void setup_bitmap(SkBitmap* bitmap, int width, int height) {
bitmap->allocN32Pixels(width, height);
bitmap->eraseColor(SK_ColorTRANSPARENT);
}
bool write_bitmap_to_disk(const SkBitmap& bm, const SkString& dirPath,
const char *subdirOrNull, const SkString& baseName) {
SkString partialPath;
if (subdirOrNull) {
partialPath = SkOSPath::Join(dirPath.c_str(), subdirOrNull);
sk_mkdir(partialPath.c_str());
} else {
partialPath.set(dirPath);
}
SkString fullPath = SkOSPath::Join(partialPath.c_str(), baseName.c_str());
if (sk_tool_utils::EncodeImageToFile(fullPath.c_str(), bm, SkEncodedImageFormat::kPNG, 100)) {
return true;
} else {
SkDebugf("Failed to write the bitmap to %s.\n", fullPath.c_str());
return false;
}
}
sk_sp<SkData> encode_bitmap_for_png(SkBitmap bitmap) {
const int w = bitmap.width(),
h = bitmap.height();
// PNG wants unpremultiplied 8-bit RGBA pixels (16-bit could work fine too).
// We leave the gamma of these bytes unspecified, to continue the status quo,
// which we think generally is to interpret them as sRGB.
SkAutoTMalloc<uint32_t> rgba(w*h);
SkJumper_MemoryCtx src = { bitmap.getPixels(), bitmap.rowBytesAsPixels() },
dst = { rgba.get(), w };
SkRasterPipeline_<256> p;
switch (bitmap.colorType()) {
case kRGBA_F16_SkColorType: p.append(SkRasterPipeline::load_f16, &src); break;
case kBGRA_8888_SkColorType: p.append(SkRasterPipeline::load_bgra, &src); break;
case kRGBA_8888_SkColorType: p.append(SkRasterPipeline::load_8888, &src); break;
case kRGB_565_SkColorType: p.append(SkRasterPipeline::load_565, &src); break;
default: SkASSERT(false); // DM doesn't support any other formats, does it?
}
if (bitmap.info().gammaCloseToSRGB()) {
p.append(SkRasterPipeline::from_srgb);
}
p.append(SkRasterPipeline::unpremul);
p.append(SkRasterPipeline::clamp_0);
p.append(SkRasterPipeline::clamp_1);
if (bitmap.info().colorSpace()) {
// We leave legacy modes as-is. They're already sRGB encoded (kind of).
p.append(SkRasterPipeline::to_srgb);
}
p.append(SkRasterPipeline::store_8888, &dst);
p.run(0,0, w,h);
return SkData::MakeFromMalloc(rgba.release(), w*h*sizeof(uint32_t));
}
} // namespace sk_tools
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