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