21a9b56fc2
Bug: skia: Change-Id: I8605cdfcc0b1c56c23a6075c7fe188ab7384681c Reviewed-on: https://skia-review.googlesource.com/c/skia/+/207221 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/*
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* Copyright 2017 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 "SkImage.h"
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#include "SkRandom.h"
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#include "ToolUtils.h"
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#include "gm.h"
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#if SK_SUPPORT_GPU && !defined(SK_BUILD_FOR_GOOGLE3)
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#include "etc1.h"
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#include "GrContext.h"
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#include "GrGpu.h"
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#include "GrRenderTargetContext.h"
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#include "GrRenderTargetContextPriv.h"
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#include "GrTextureProxy.h"
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#include "effects/generated/GrSimpleTextureEffect.h"
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#include "ops/GrFillRectOp.h"
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// Basic test of Ganesh's ETC1 support
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class ETC1GM : public skiagm::GpuGM {
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public:
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ETC1GM() {
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this->setBGColor(0xFFCCCCCC);
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}
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protected:
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SkString onShortName() override {
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return SkString("etc1");
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}
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SkISize onISize() override {
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return SkISize::Make(kTexWidth + 2*kPad, kTexHeight + 2*kPad);
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}
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void onOnceBeforeDraw() override {
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SkBitmap bm;
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SkImageInfo ii = SkImageInfo::Make(kTexWidth, kTexHeight, kRGB_565_SkColorType,
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kOpaque_SkAlphaType);
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bm.allocPixels(ii);
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bm.erase(SK_ColorBLUE, SkIRect::MakeWH(kTexWidth, kTexHeight));
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for (int y = 0; y < kTexHeight; y += 4) {
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for (int x = 0; x < kTexWidth; x += 4) {
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bm.erase((x+y) % 8 ? SK_ColorRED : SK_ColorGREEN, SkIRect::MakeXYWH(x, y, 4, 4));
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}
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}
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int size = etc1_get_encoded_data_size(bm.width(), bm.height());
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fETC1Data = SkData::MakeUninitialized(size);
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unsigned char* pixels = (unsigned char*) fETC1Data->writable_data();
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if (etc1_encode_image((unsigned char*) bm.getAddr16(0, 0),
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bm.width(), bm.height(), 2, bm.rowBytes(), pixels)) {
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fETC1Data = nullptr;
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}
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}
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void onDraw(GrContext* context, GrRenderTargetContext*, SkCanvas* canvas) override {
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sk_sp<SkImage> image = SkImage::MakeFromCompressed(context, fETC1Data,
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kTexWidth, kTexHeight,
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SkImage::kETC1_CompressionType);
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canvas->drawImage(image, 0, 0);
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}
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private:
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static const int kPad = 8;
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static const int kTexWidth = 16;
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static const int kTexHeight = 20;
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sk_sp<SkData> fETC1Data;
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ETC1GM;)
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#endif
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