cb7149e058
Bug: skia:8684 Change-Id: I78aa90af2d643656532e082c4c12a60b08cf4d23 Reviewed-on: https://skia-review.googlesource.com/c/184194 Auto-Submit: Jim Van Verth <jvanverth@google.com> Reviewed-by: Jim Van Verth <jvanverth@google.com> Commit-Queue: Jim Van Verth <jvanverth@google.com>
128 lines
3.8 KiB
C++
128 lines
3.8 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 "gm.h"
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#include "sk_tool_utils.h"
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#include "SkRandom.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/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::GM {
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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.reset(size);
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unsigned char* pixels = (unsigned char*) fETC1Data.get();
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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.reset();
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}
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}
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void onDraw(SkCanvas* canvas) override {
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GrRenderTargetContext* renderTargetContext =
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canvas->internal_private_accessTopLayerRenderTargetContext();
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if (!renderTargetContext) {
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skiagm::GM::DrawGpuOnlyMessage(canvas);
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return;
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}
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GrContext* context = canvas->getGrContext();
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if (!context || context->abandoned()) {
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return;
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}
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GrBackendTexture tex = context->contextPriv().getGpu()->createTestingOnlyBackendTexture(
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fETC1Data.get(),
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kTexWidth,
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kTexHeight,
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GrColorType::kRGB_ETC1,
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false,
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GrMipMapped::kNo,
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kTexWidth/2); // rowbytes are meaningless for compressed textures, but this is
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// basically right
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if (!tex.isValid()) {
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return;
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}
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auto proxy = context->contextPriv().proxyProvider()->wrapBackendTexture(
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tex, kTopLeft_GrSurfaceOrigin,
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kAdopt_GrWrapOwnership,
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kRead_GrIOType);
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if (!proxy) {
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return;
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}
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const SkMatrix trans = SkMatrix::MakeTrans(-kPad, -kPad);
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auto fp = GrSimpleTextureEffect::Make(proxy, trans);
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GrPaint grPaint;
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grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
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grPaint.addColorFragmentProcessor(std::move(fp));
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SkRect rect = SkRect::MakeXYWH(kPad, kPad, kTexWidth, kTexHeight);
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renderTargetContext->priv().testingOnly_addDrawOp(
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GrFillRectOp::Make(context, std::move(grPaint), GrAAType::kNone, SkMatrix::I(), rect));
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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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SkAutoTMalloc<char> 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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