c2d207603e
There are two remaining swap_rb uses that both look non-trivial to replace: - sampling out of index8 when the color table is bgra - table transforms on bgra inputs in SkColorSpaceXform I don't think it's a big deal to just leave swap_rb around, just a little sad. Change-Id: I3d30200cf867cbf37d6f86572b1574d3e22e3490 Reviewed-on: https://skia-review.googlesource.com/21040 Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Mike Klein <mtklein@chromium.org>
120 lines
4.0 KiB
C++
120 lines
4.0 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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#include "picture_utils.h"
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#include "SkBitmap.h"
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#include "SkColorPriv.h"
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#include "SkHalf.h"
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#include "SkImageEncoder.h"
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#include "SkOSFile.h"
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#include "SkOSPath.h"
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#include "SkPM4fPriv.h"
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#include "SkPicture.h"
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#include "SkStream.h"
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#include "SkString.h"
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#include "SkRasterPipeline.h"
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#include "sk_tool_utils.h"
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namespace sk_tools {
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void force_all_opaque(const SkBitmap& bitmap) {
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SkASSERT(kN32_SkColorType == bitmap.colorType());
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if (kN32_SkColorType == bitmap.colorType()) {
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return;
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}
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for (int y = 0; y < bitmap.height(); y++) {
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for (int x = 0; x < bitmap.width(); x++) {
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*bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
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}
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}
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}
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void replace_char(SkString* str, const char oldChar, const char newChar) {
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if (nullptr == str) {
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return;
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}
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for (size_t i = 0; i < str->size(); ++i) {
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if (oldChar == str->operator[](i)) {
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str->operator[](i) = newChar;
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}
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}
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}
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bool is_percentage(const char* const string) {
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SkString skString(string);
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return skString.endsWith("%");
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}
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void setup_bitmap(SkBitmap* bitmap, int width, int height) {
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bitmap->allocN32Pixels(width, height);
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bitmap->eraseColor(SK_ColorTRANSPARENT);
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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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SkString partialPath;
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if (subdirOrNull) {
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partialPath = SkOSPath::Join(dirPath.c_str(), subdirOrNull);
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sk_mkdir(partialPath.c_str());
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} else {
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partialPath.set(dirPath);
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}
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SkString fullPath = SkOSPath::Join(partialPath.c_str(), baseName.c_str());
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if (sk_tool_utils::EncodeImageToFile(fullPath.c_str(), bm, SkEncodedImageFormat::kPNG, 100)) {
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return true;
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} else {
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SkDebugf("Failed to write the bitmap to %s.\n", fullPath.c_str());
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return false;
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}
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}
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sk_sp<SkData> encode_bitmap_for_png(SkBitmap bitmap) {
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const int w = bitmap.width(),
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h = bitmap.height();
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// PNG wants unpremultiplied 8-bit RGBA pixels (16-bit could work fine too).
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// We leave the gamma of these bytes unspecified, to continue the status quo,
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// which we think generally is to interpret them as sRGB.
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SkAutoTMalloc<uint32_t> rgba(w*h);
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const void* src = bitmap.getPixels();
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uint32_t* dst = rgba.get();
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SkRasterPipeline_<256> p;
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switch (bitmap.colorType()) {
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case kRGBA_F16_SkColorType: p.append(SkRasterPipeline::load_f16, &src); break;
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case kBGRA_8888_SkColorType: p.append(SkRasterPipeline::load_bgra, &src); break;
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case kRGBA_8888_SkColorType: p.append(SkRasterPipeline::load_8888, &src); break;
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case kRGB_565_SkColorType: p.append(SkRasterPipeline::load_565, &src); break;
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default: SkASSERT(false); // DM doesn't support any other formats, does it?
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}
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if (bitmap.info().gammaCloseToSRGB()) {
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p.append_from_srgb(kUnpremul_SkAlphaType);
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}
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p.append(SkRasterPipeline::unpremul);
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p.append(SkRasterPipeline::clamp_0);
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p.append(SkRasterPipeline::clamp_1);
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if (bitmap.info().colorSpace()) {
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// We leave legacy modes as-is. They're already sRGB encoded (kind of).
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p.append(SkRasterPipeline::to_srgb);
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}
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p.append(SkRasterPipeline::store_8888, &dst);
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auto run = p.compile();
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for (int y = 0; y < h; y++) {
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run(0,y, w);
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src = SkTAddOffset<const void>(src, bitmap.rowBytes());
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dst += w;
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}
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return SkData::MakeFromMalloc(rgba.release(), w*h*sizeof(uint32_t));
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}
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} // namespace sk_tools
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