/*
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* Copyright 2016 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 "gm.h"
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#include "Resources.h"
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#include "SkCanvas.h"
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#include "SkData.h"
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#include "SkImage.h"
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#include "SkImageEncoderPriv.h"
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#include "SkJpegEncoder.h"
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#include "SkPngEncoder.h"
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#include "SkWebpEncoder.h"
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namespace skiagm {
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#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
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static SkEncodedImageFormat kTypes[] {
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SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kJPEG, SkEncodedImageFormat::kGIF,
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SkEncodedImageFormat::kBMP, SkEncodedImageFormat::kICO,
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};
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#elif defined(SK_BUILD_FOR_WIN)
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// Use PNG multiple times because our WIC encoder does not support GIF, BMP, or ICO.
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static SkEncodedImageFormat kTypes[] {
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SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kJPEG, SkEncodedImageFormat::kPNG,
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SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kPNG,
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};
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#else
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// Use WEBP in place of GIF. Use PNG two extra times. We don't support GIF, BMP, or ICO.
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static SkEncodedImageFormat kTypes[] {
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SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kJPEG, SkEncodedImageFormat::kWEBP,
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SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kPNG,
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};
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#endif
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static sk_sp<SkData> encode_data(SkEncodedImageFormat type, const SkBitmap& bitmap) {
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SkPixmap src;
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if (!bitmap.peekPixels(&src)) {
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return nullptr;
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}
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SkDynamicMemoryWStream buf;
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#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
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return SkEncodeImageWithCG(&buf, src, type) ? buf.detachAsData() : nullptr;
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#elif defined(SK_BUILD_FOR_WIN)
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return SkEncodeImageWithWIC(&buf, src, type, 100) ? buf.detachAsData() : nullptr;
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#else
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switch (type) {
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case SkEncodedImageFormat::kPNG: {
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bool success = SkPngEncoder::Encode(&buf, src, SkPngEncoder::Options());
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return success ? buf.detachAsData() : nullptr;
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}
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case SkEncodedImageFormat::kJPEG: {
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bool success = SkJpegEncoder::Encode(&buf, src, SkJpegEncoder::Options());
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return success ? buf.detachAsData() : nullptr;
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}
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case SkEncodedImageFormat::kWEBP: {
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bool success = SkWebpEncoder::Encode(&buf, src, SkWebpEncoder::Options());
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return success ? buf.detachAsData() : nullptr;
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}
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default:
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SkASSERT(false);
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return nullptr;
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}
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#endif
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}
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class EncodePlatformGM : public GM {
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public:
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EncodePlatformGM() {}
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protected:
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SkString onShortName() override {
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return SkString("encode-platform");
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}
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SkISize onISize() override {
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return SkISize::Make(256 * SK_ARRAY_COUNT(kTypes), 256 * 3);
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}
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void onDraw(SkCanvas* canvas) override {
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SkBitmap opaqueBm, premulBm, unpremulBm;
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if (!GetResourceAsBitmap("images/mandrill_256.png", &opaqueBm)) {
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return;
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}
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SkBitmap tmp;
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if (!GetResourceAsBitmap("images/yellow_rose.png", &tmp)) {
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return;
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}
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tmp.extractSubset(&premulBm, SkIRect::MakeWH(256, 256));
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tmp.reset();
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unpremulBm.allocPixels(premulBm.info().makeAlphaType(kUnpremul_SkAlphaType));
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SkAssertResult(premulBm.readPixels(unpremulBm.pixmap()));
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for (SkEncodedImageFormat type : kTypes) {
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auto opaqueImage = SkImage::MakeFromEncoded(encode_data(type, opaqueBm));
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auto premulImage = SkImage::MakeFromEncoded(encode_data(type, premulBm));
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auto unpremulImage = SkImage::MakeFromEncoded(encode_data(type, unpremulBm));
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canvas->drawImage(opaqueImage.get(), 0.0f, 0.0f);
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canvas->drawImage(premulImage.get(), 0.0f, 256.0f);
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canvas->drawImage(unpremulImage.get(), 0.0f, 512.0f);
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canvas->translate(256.0f, 0.0f);
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}
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}
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private:
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typedef GM INHERITED;
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};
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DEF_GM( return new EncodePlatformGM; )
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}
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