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- /*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/core/SkTypes.h" // IWYU pragma: keep
- #if !defined(SK_BUILD_FOR_GOOGLE3)
- #include "gm/gm.h"
- #include "include/core/SkBitmap.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkData.h"
- #include "include/core/SkImage.h"
- #include "include/core/SkImageInfo.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "third_party/etc1/etc1.h"
- class GrContext;
- class GrRenderTargetContext;
- // Basic test of Ganesh's ETC1 support
- class ETC1GM : public skiagm::GpuGM {
- public:
- ETC1GM() {
- this->setBGColor(0xFFCCCCCC);
- }
- protected:
- SkString onShortName() override {
- return SkString("etc1");
- }
- SkISize onISize() override {
- return SkISize::Make(kTexWidth + 2*kPad, kTexHeight + 2*kPad);
- }
- void onOnceBeforeDraw() override {
- SkBitmap bm;
- SkImageInfo ii = SkImageInfo::Make(kTexWidth, kTexHeight, kRGB_565_SkColorType,
- kOpaque_SkAlphaType);
- bm.allocPixels(ii);
- bm.erase(SK_ColorBLUE, SkIRect::MakeWH(kTexWidth, kTexHeight));
- for (int y = 0; y < kTexHeight; y += 4) {
- for (int x = 0; x < kTexWidth; x += 4) {
- bm.erase((x+y) % 8 ? SK_ColorRED : SK_ColorGREEN, SkIRect::MakeXYWH(x, y, 4, 4));
- }
- }
- int size = etc1_get_encoded_data_size(bm.width(), bm.height());
- fETC1Data = SkData::MakeUninitialized(size);
- unsigned char* pixels = (unsigned char*) fETC1Data->writable_data();
- if (etc1_encode_image((unsigned char*) bm.getAddr16(0, 0),
- bm.width(), bm.height(), 2, bm.rowBytes(), pixels)) {
- fETC1Data = nullptr;
- }
- }
- void onDraw(GrContext* context, GrRenderTargetContext*, SkCanvas* canvas) override {
- sk_sp<SkImage> image = SkImage::MakeFromCompressed(context, fETC1Data,
- kTexWidth, kTexHeight,
- SkImage::kETC1_CompressionType);
- canvas->drawImage(image, 0, 0);
- }
- private:
- static const int kPad = 8;
- static const int kTexWidth = 16;
- static const int kTexHeight = 20;
- sk_sp<SkData> fETC1Data;
- typedef GM INHERITED;
- };
- //////////////////////////////////////////////////////////////////////////////
- DEF_GM(return new ETC1GM;)
- #endif
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