| /* |
| * 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.h" |
| |
| #if SK_SUPPORT_GPU |
| |
| #include "GrDrawContextPriv.h" |
| #include "GrContext.h" |
| #include "SkBitmap.h" |
| #include "SkGr.h" |
| #include "SkGradientShader.h" |
| #include "batches/GrDrawBatch.h" |
| #include "batches/GrRectBatchFactory.h" |
| #include "effects/GrTextureDomain.h" |
| |
| namespace skiagm { |
| /** |
| * This GM directly exercises GrTextureDomainEffect. |
| */ |
| class TextureDomainEffect : public GM { |
| public: |
| TextureDomainEffect() { |
| this->setBGColor(0xFFFFFFFF); |
| } |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("texture_domain_effect"); |
| } |
| |
| SkISize onISize() override { |
| const SkScalar canvasWidth = kDrawPad + |
| (kTargetWidth + 2 * kDrawPad) * GrTextureDomain::kModeCount + |
| kTestPad * GrTextureDomain::kModeCount; |
| return SkISize::Make(SkScalarCeilToInt(canvasWidth), 800); |
| } |
| |
| void onOnceBeforeDraw() override { |
| fBmp.allocN32Pixels(kTargetWidth, kTargetHeight); |
| SkCanvas canvas(fBmp); |
| 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, fBmp.width() + 10.f, fBmp.height() + 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.setXfermodeMode(SkXfermode::kDarken_Mode); |
| canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, fBmp.width() + 10.f, fBmp.height() + 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.setXfermodeMode(SkXfermode::kLighten_Mode); |
| canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, fBmp.width() + 10.f, fBmp.height() + 10.f), |
| paint); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| GrDrawContext* drawContext = canvas->internal_private_accessTopLayerDrawContext(); |
| if (!drawContext) { |
| skiagm::GM::DrawGpuOnlyMessage(canvas); |
| return; |
| } |
| |
| GrContext* context = canvas->getGrContext(); |
| if (!context) { |
| return; |
| } |
| |
| SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(context, fBmp, |
| GrTextureParams::ClampNoFilter())); |
| if (!texture) { |
| return; |
| } |
| |
| SkTArray<SkMatrix> textureMatrices; |
| textureMatrices.push_back().setIDiv(texture->width(), texture->height()); |
| textureMatrices.push_back() = textureMatrices[0]; |
| textureMatrices.back().postScale(1.5f, 0.85f); |
| textureMatrices.push_back() = textureMatrices[0]; |
| textureMatrices.back().preRotate(45.f, texture->width() / 2.f, texture->height() / 2.f); |
| |
| const SkIRect texelDomains[] = { |
| fBmp.bounds(), |
| SkIRect::MakeXYWH(fBmp.width() / 4, |
| fBmp.height() / 4, |
| fBmp.width() / 2, |
| fBmp.height() / 2), |
| }; |
| |
| SkRect renderRect = SkRect::Make(fBmp.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; |
| GrPipelineBuilder pipelineBuilder; |
| pipelineBuilder.setXPFactory( |
| GrPorterDuffXPFactory::Create(SkXfermode::kSrc_Mode))->unref(); |
| SkAutoTUnref<const GrFragmentProcessor> fp( |
| GrTextureDomainEffect::Create(texture, textureMatrices[tm], |
| GrTextureDomain::MakeTexelDomain(texture, |
| texelDomains[d]), |
| mode, GrTextureParams::kNone_FilterMode)); |
| |
| if (!fp) { |
| continue; |
| } |
| const SkMatrix viewMatrix = SkMatrix::MakeTrans(x, y); |
| pipelineBuilder.addColorFragmentProcessor(fp); |
| |
| SkAutoTUnref<GrDrawBatch> batch( |
| GrRectBatchFactory::CreateNonAAFill(GrColor_WHITE, viewMatrix, |
| renderRect, nullptr, nullptr)); |
| drawContext->drawContextPriv().testingOnly_drawBatch(pipelineBuilder, batch); |
| x += renderRect.width() + kTestPad; |
| } |
| y += renderRect.height() + kTestPad; |
| } |
| } |
| } |
| |
| private: |
| static const SkScalar kDrawPad; |
| static const SkScalar kTestPad; |
| static const int kTargetWidth = 100; |
| static const int kTargetHeight = 100; |
| SkBitmap fBmp; |
| |
| typedef GM INHERITED; |
| }; |
| |
| // Windows builds did not like SkScalar initialization in class :( |
| const SkScalar TextureDomainEffect::kDrawPad = 10.f; |
| const SkScalar TextureDomainEffect::kTestPad = 10.f; |
| |
| DEF_GM(return new TextureDomainEffect;) |
| } |
| |
| #endif |