| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| // This test only works with the GPU backend. |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkShader.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypes.h" |
| #include "include/effects/SkGradientShader.h" |
| #include "include/gpu/GrContext.h" |
| #include "include/gpu/GrTypes.h" |
| #include "include/private/GrTypesPriv.h" |
| #include "include/private/SkTArray.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrContextPriv.h" |
| #include "src/gpu/GrFragmentProcessor.h" |
| #include "src/gpu/GrPaint.h" |
| #include "src/gpu/GrProxyProvider.h" |
| #include "src/gpu/GrRenderTargetContext.h" |
| #include "src/gpu/GrRenderTargetContextPriv.h" |
| #include "src/gpu/GrSamplerState.h" |
| #include "src/gpu/GrTextureProxy.h" |
| #include "src/gpu/effects/GrPorterDuffXferProcessor.h" |
| #include "src/gpu/effects/GrTextureDomain.h" |
| #include "src/gpu/ops/GrDrawOp.h" |
| #include "src/gpu/ops/GrFillRectOp.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| namespace skiagm { |
| /** |
| * This GM directly exercises GrTextureDomainEffect. |
| */ |
| class TextureDomainEffect : public GpuGM { |
| public: |
| TextureDomainEffect(GrSamplerState::Filter filter) |
| : fFilter(filter) { |
| this->setBGColor(0xFFFFFFFF); |
| } |
| |
| protected: |
| SkString onShortName() override { |
| SkString name("texture_domain_effect"); |
| if (fFilter == GrSamplerState::Filter::kBilerp) { |
| name.append("_bilerp"); |
| } else if (fFilter == GrSamplerState::Filter::kMipMap) { |
| name.append("_mipmap"); |
| } |
| return name; |
| } |
| |
| SkISize onISize() override { |
| const SkScalar canvasWidth = kDrawPad + |
| (kTargetWidth + 2 * kDrawPad) * GrTextureDomain::kModeCount + |
| kTestPad * GrTextureDomain::kModeCount; |
| return SkISize::Make(SkScalarCeilToInt(canvasWidth), 800); |
| } |
| |
| void onOnceBeforeDraw() override { |
| fBitmap.allocN32Pixels(kTargetWidth, kTargetHeight); |
| SkCanvas canvas(fBitmap); |
| canvas.clear(0x00000000); |
| SkPaint paint; |
| |
| SkColor colors1[] = { SK_ColorCYAN, SK_ColorLTGRAY, SK_ColorGRAY }; |
| paint.setShader(SkGradientShader::MakeSweep(65.f, 75.f, colors1, nullptr, |
| SK_ARRAY_COUNT(colors1))); |
| canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, kTargetWidth + 10.f, kTargetHeight + 10.f), |
| paint); |
| |
| SkColor colors2[] = { SK_ColorMAGENTA, SK_ColorLTGRAY, SK_ColorYELLOW }; |
| paint.setShader(SkGradientShader::MakeSweep(45.f, 55.f, colors2, nullptr, |
| SK_ARRAY_COUNT(colors2))); |
| paint.setBlendMode(SkBlendMode::kDarken); |
| canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, kTargetWidth + 10.f, kTargetHeight + 10.f), |
| paint); |
| |
| SkColor colors3[] = { SK_ColorBLUE, SK_ColorLTGRAY, SK_ColorGREEN }; |
| paint.setShader(SkGradientShader::MakeSweep(25.f, 35.f, colors3, nullptr, |
| SK_ARRAY_COUNT(colors3))); |
| paint.setBlendMode(SkBlendMode::kLighten); |
| canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, kTargetWidth + 10.f, kTargetHeight + 10.f), |
| paint); |
| } |
| |
| DrawResult onDraw(GrContext* context, GrRenderTargetContext* renderTargetContext, |
| SkCanvas* canvas, SkString* errorMsg) override { |
| GrProxyProvider* proxyProvider = context->priv().proxyProvider(); |
| sk_sp<GrTextureProxy> proxy; |
| GrMipMapped mipMapped = fFilter == GrSamplerState::Filter::kMipMap && |
| context->priv().caps()->mipMapSupport() |
| ? GrMipMapped::kYes : GrMipMapped::kNo; |
| proxy = proxyProvider->createProxyFromBitmap(fBitmap, mipMapped); |
| if (!proxy) { |
| *errorMsg = "Failed to create proxy."; |
| return DrawResult::kFail; |
| } |
| |
| SkTArray<SkMatrix> textureMatrices; |
| textureMatrices.push_back() = SkMatrix::I(); |
| textureMatrices.push_back() = SkMatrix::MakeScale(1.5f, 0.85f); |
| textureMatrices.push_back(); |
| textureMatrices.back().setRotate(45.f, proxy->width() / 2.f, proxy->height() / 2.f); |
| |
| const SkIRect texelDomains[] = { |
| fBitmap.bounds(), |
| SkIRect::MakeXYWH(fBitmap.width() / 4 - 1, fBitmap.height() / 4 - 1, |
| fBitmap.width() / 2 + 2, fBitmap.height() / 2 + 2), |
| }; |
| |
| SkRect renderRect = SkRect::Make(fBitmap.bounds()); |
| renderRect.outset(kDrawPad, kDrawPad); |
| |
| SkScalar y = kDrawPad + kTestPad; |
| for (int tm = 0; tm < textureMatrices.count(); ++tm) { |
| for (size_t d = 0; d < SK_ARRAY_COUNT(texelDomains); ++d) { |
| SkScalar x = kDrawPad + kTestPad; |
| for (int m = 0; m < GrTextureDomain::kModeCount; ++m) { |
| GrTextureDomain::Mode mode = (GrTextureDomain::Mode) m; |
| if (fFilter != GrSamplerState::Filter::kNearest && |
| mode == GrTextureDomain::kRepeat_Mode) { |
| // Repeat mode doesn't produce correct results with bilerp filtering |
| continue; |
| } |
| |
| GrPaint grPaint; |
| grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc)); |
| auto fp = GrTextureDomainEffect::Make( |
| proxy, fBitmap.alphaType(), textureMatrices[tm], |
| GrTextureDomain::MakeTexelDomain(texelDomains[d], mode), mode, fFilter); |
| |
| if (!fp) { |
| continue; |
| } |
| const SkMatrix viewMatrix = SkMatrix::MakeTrans(x, y); |
| grPaint.addColorFragmentProcessor(std::move(fp)); |
| renderTargetContext->priv().testingOnly_addDrawOp( |
| GrFillRectOp::MakeNonAARect(context, std::move(grPaint), |
| viewMatrix, renderRect)); |
| x += renderRect.width() + kTestPad; |
| } |
| y += renderRect.height() + kTestPad; |
| } |
| } |
| return DrawResult::kOk; |
| } |
| |
| private: |
| static constexpr SkScalar kDrawPad = 10.f; |
| static constexpr SkScalar kTestPad = 10.f; |
| static constexpr int kTargetWidth = 100; |
| static constexpr int kTargetHeight = 100; |
| SkBitmap fBitmap; |
| GrSamplerState::Filter fFilter; |
| |
| typedef GM INHERITED; |
| }; |
| |
| DEF_GM(return new TextureDomainEffect(GrSamplerState::Filter::kNearest);) |
| DEF_GM(return new TextureDomainEffect(GrSamplerState::Filter::kBilerp);) |
| DEF_GM(return new TextureDomainEffect(GrSamplerState::Filter::kMipMap);) |
| |
| } |