Index: gm/encode-platform.cpp |
diff --git a/gm/encode-platform.cpp b/gm/encode-platform.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..90f6aa9b9479e929b76588dad66091f75b29837b |
--- /dev/null |
+++ b/gm/encode-platform.cpp |
@@ -0,0 +1,121 @@ |
+/* |
+ * 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.h" |
+#include "Resources.h" |
+#include "SkCanvas.h" |
+#include "SkData.h" |
+#include "SkImageEncoder.h" |
+#include "SkUnPreMultiply.h" |
+ |
+namespace skiagm { |
+ |
+static void make_opaque_256(SkBitmap* bitmap) { |
+ GetResourceAsBitmap("mandrill_256.png", bitmap); |
+} |
+ |
+static void make_premul_256(SkBitmap* bitmap) { |
+ SkBitmap tmp; |
+ GetResourceAsBitmap("yellow_rose.png", &tmp); |
+ tmp.extractSubset(bitmap, SkIRect::MakeWH(256, 256)); |
+ bitmap->lockPixels(); |
+} |
+ |
+static void make_unpremul_256(SkBitmap* bitmap) { |
+ make_premul_256(bitmap); |
+ for (int y = 0; y < bitmap->height(); y++) { |
+ for (int x = 0; x < bitmap->width(); x++) { |
+ SkPMColor* pixel = bitmap->getAddr32(x, y); |
+ *pixel = SkUnPreMultiply::UnPreMultiplyPreservingByteOrder(*pixel); |
+ } |
+ } |
+ bitmap->setAlphaType(kUnpremul_SkAlphaType); |
+} |
+ |
+static SkImageEncoder* make_encoder(SkImageEncoder::Type type) { |
+#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS) |
+ return CreateImageEncoder_CG(type); |
+#elif defined(SK_BUILD_FOR_WIN) |
+ return CreateImageEncoder_WIC(type); |
+#else |
+ switch (type) { |
+ case SkImageEncoder::kPNG_Type: |
+ return CreatePNGImageEncoder(); |
+ case SkImageEncoder::kJPEG_Type: |
+ return CreateJPEGImageEncoder(); |
+ case SkImageEncoder::kWEBP_Type: |
+ return CreateWEBPImageEncoder(); |
+ default: |
+ SkASSERT(false); |
+ return nullptr; |
+ } |
+#endif |
+} |
+ |
+#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS) |
+static SkImageEncoder::Type kTypes[] { |
+ SkImageEncoder::kPNG_Type, SkImageEncoder::kJPEG_Type, SkImageEncoder::kGIF_Type, |
+ SkImageEncoder::kBMP_Type, SkImageEncoder::kICO_Type, |
+}; |
+#elif defined(SK_BUILD_FOR_WIN) |
+// Use PNG multiple times because our WIC encoder does not support GIF, BMP, or ICO. |
+static SkImageEncoder::Type kTypes[] { |
+ SkImageEncoder::kPNG_Type, SkImageEncoder::kJPEG_Type, SkImageEncoder::kPNG_Type, |
+ SkImageEncoder::kPNG_Type, SkImageEncoder::kPNG_Type, |
+}; |
+#else |
+// Use WEBP in place of GIF. Use PNG two extra times. We don't support GIF, BMP, or ICO. |
+static SkImageEncoder::Type kTypes[] { |
+ SkImageEncoder::kPNG_Type, SkImageEncoder::kJPEG_Type, SkImageEncoder::kWEBP_Type, |
+ SkImageEncoder::kPNG_Type, SkImageEncoder::kPNG_Type, |
+}; |
+#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); |
+ } |
+ |
+ void onDraw(SkCanvas* canvas) override { |
+ SkBitmap opaqueBm, premulBm, unpremulBm; |
+ make_opaque_256(&opaqueBm); |
+ make_premul_256(&premulBm); |
+ make_unpremul_256(&unpremulBm); |
+ |
+ for (SkImageEncoder::Type type : kTypes) { |
+ SkAutoTDelete<SkImageEncoder> encoder(make_encoder(type)); |
+ sk_sp<SkData> opaqueData(encoder->encodeData(opaqueBm, 100)); |
+ sk_sp<SkData> premulData(encoder->encodeData(premulBm, 100)); |
+ sk_sp<SkData> unpremulData(encoder->encodeData(unpremulBm, 100)); |
+ |
+ sk_sp<SkImage> opaqueImage = SkImage::MakeFromEncoded(opaqueData); |
+ sk_sp<SkImage> premulImage = SkImage::MakeFromEncoded(premulData); |
+ sk_sp<SkImage> unpremulImage = SkImage::MakeFromEncoded(unpremulData); |
+ |
+ 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); |
+ } |
+ } |
+ |
+private: |
+ typedef GM INHERITED; |
+}; |
+ |
+DEF_GM( return new EncodePlatformGM; ) |
+} |