commit-bot@chromium.org | 2663263 | 2014-03-25 15:13:18 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2014 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
| 9 | // This test only works with the GPU backend. |
| 10 | |
| 11 | #include "gm.h" |
| 12 | |
| 13 | #if SK_SUPPORT_GPU |
| 14 | |
| 15 | #include "GrContext.h" |
| 16 | #include "GrTest.h" |
| 17 | #include "effects/GrTextureDomain.h" |
| 18 | #include "SkBitmap.h" |
| 19 | #include "SkGr.h" |
| 20 | #include "SkGradientShader.h" |
| 21 | |
| 22 | namespace skiagm { |
| 23 | /** |
| 24 | * This GM directly exercises GrTextureDomainEffect. |
| 25 | */ |
| 26 | class TextureDomainEffect : public GM { |
| 27 | public: |
| 28 | TextureDomainEffect() { |
| 29 | this->setBGColor(0xFFFFFFFF); |
| 30 | } |
| 31 | |
| 32 | protected: |
| 33 | virtual SkString onShortName() SK_OVERRIDE { |
| 34 | return SkString("texture_domain_effect"); |
| 35 | } |
| 36 | |
| 37 | virtual SkISize onISize() SK_OVERRIDE { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 38 | return SkISize::Make(400, 800); |
commit-bot@chromium.org | 2663263 | 2014-03-25 15:13:18 +0000 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | virtual uint32_t onGetFlags() const SK_OVERRIDE { |
| 42 | // This is a GPU-specific GM. |
| 43 | return kGPUOnly_Flag; |
| 44 | } |
| 45 | |
| 46 | virtual void onOnceBeforeDraw() SK_OVERRIDE { |
| 47 | fBmp.allocN32Pixels(100, 100); |
| 48 | SkCanvas canvas(fBmp); |
commit-bot@chromium.org | c5713e4 | 2014-04-07 21:18:46 +0000 | [diff] [blame] | 49 | canvas.clear(0x00000000); |
commit-bot@chromium.org | 2663263 | 2014-03-25 15:13:18 +0000 | [diff] [blame] | 50 | SkPaint paint; |
| 51 | |
| 52 | SkColor colors1[] = { SK_ColorCYAN, SK_ColorLTGRAY, SK_ColorGRAY }; |
| 53 | paint.setShader(SkGradientShader::CreateSweep(65.f, 75.f, colors1, |
| 54 | NULL, SK_ARRAY_COUNT(colors1)))->unref(); |
| 55 | canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, |
| 56 | fBmp.width() + 10.f, fBmp.height() + 10.f), paint); |
| 57 | |
| 58 | SkColor colors2[] = { SK_ColorMAGENTA, SK_ColorLTGRAY, SK_ColorYELLOW }; |
| 59 | paint.setShader(SkGradientShader::CreateSweep(45.f, 55.f, colors2, NULL, |
| 60 | SK_ARRAY_COUNT(colors2)))->unref(); |
| 61 | paint.setXfermodeMode(SkXfermode::kDarken_Mode); |
| 62 | canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, |
| 63 | fBmp.width() + 10.f, fBmp.height() + 10.f), paint); |
| 64 | |
| 65 | SkColor colors3[] = { SK_ColorBLUE, SK_ColorLTGRAY, SK_ColorGREEN }; |
| 66 | paint.setShader(SkGradientShader::CreateSweep(25.f, 35.f, colors3, NULL, |
| 67 | SK_ARRAY_COUNT(colors3)))->unref(); |
| 68 | paint.setXfermodeMode(SkXfermode::kLighten_Mode); |
| 69 | canvas.drawOval(SkRect::MakeXYWH(-5.f, -5.f, |
| 70 | fBmp.width() + 10.f, fBmp.height() + 10.f), paint); |
| 71 | } |
| 72 | |
| 73 | virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 74 | GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget(); |
| 75 | if (NULL == rt) { |
| 76 | return; |
| 77 | } |
| 78 | GrContext* context = rt->getContext(); |
| 79 | if (NULL == context) { |
| 80 | return; |
| 81 | } |
| 82 | |
| 83 | GrTestTarget tt; |
| 84 | context->getTestTarget(&tt); |
| 85 | if (NULL == tt.target()) { |
| 86 | SkDEBUGFAIL("Couldn't get Gr test target."); |
| 87 | return; |
| 88 | } |
| 89 | |
| 90 | GrDrawState* drawState = tt.target()->drawState(); |
| 91 | |
| 92 | GrTexture* texture = GrLockAndRefCachedBitmapTexture(context, fBmp, NULL); |
| 93 | if (NULL == texture) { |
| 94 | return; |
| 95 | } |
| 96 | |
| 97 | static const SkScalar kDrawPad = 10.f; |
| 98 | static const SkScalar kTestPad = 10.f; |
| 99 | |
| 100 | SkTArray<SkMatrix> textureMatrices; |
| 101 | textureMatrices.push_back().setIDiv(texture->width(), texture->height()); |
| 102 | textureMatrices.push_back() = textureMatrices[0]; |
| 103 | textureMatrices.back().postScale(1.5f, 0.85f); |
| 104 | textureMatrices.push_back() = textureMatrices[0]; |
| 105 | textureMatrices.back().preRotate(45.f, texture->width() / 2.f, texture->height() / 2.f); |
| 106 | |
| 107 | const SkIRect texelDomains[] = { |
| 108 | SkIRect::MakeWH(fBmp.width(), fBmp.height()), |
| 109 | SkIRect::MakeXYWH(fBmp.width() / 4, |
| 110 | fBmp.height() / 4, |
| 111 | fBmp.width() / 2, |
| 112 | fBmp.height() / 2), |
| 113 | }; |
| 114 | |
| 115 | SkRect renderRect = SkRect::MakeWH(SkIntToScalar(fBmp.width()), |
| 116 | SkIntToScalar(fBmp.height())); |
| 117 | renderRect.outset(kDrawPad, kDrawPad); |
| 118 | |
| 119 | SkScalar y = kDrawPad + kTestPad; |
| 120 | for (int tm = 0; tm < textureMatrices.count(); ++tm) { |
| 121 | for (size_t d = 0; d < SK_ARRAY_COUNT(texelDomains); ++d) { |
| 122 | SkScalar x = kDrawPad + kTestPad; |
| 123 | for (int m = 0; m < GrTextureDomain::kModeCount; ++m) { |
| 124 | GrTextureDomain::Mode mode = (GrTextureDomain::Mode) m; |
bsalomon | 83d081a | 2014-07-08 09:56:10 -0700 | [diff] [blame] | 125 | SkAutoTUnref<GrEffect> effect( |
commit-bot@chromium.org | 2663263 | 2014-03-25 15:13:18 +0000 | [diff] [blame] | 126 | GrTextureDomainEffect::Create(texture, textureMatrices[tm], |
| 127 | GrTextureDomain::MakeTexelDomain(texture, |
| 128 | texelDomains[d]), |
| 129 | mode, GrTextureParams::kNone_FilterMode)); |
| 130 | |
| 131 | if (!effect) { |
| 132 | continue; |
| 133 | } |
| 134 | SkMatrix viewMatrix; |
| 135 | viewMatrix.setTranslate(x, y); |
| 136 | drawState->reset(viewMatrix); |
| 137 | drawState->setRenderTarget(rt); |
| 138 | drawState->setColor(0xffffffff); |
| 139 | drawState->addColorEffect(effect, 1); |
| 140 | |
| 141 | tt.target()->drawSimpleRect(renderRect); |
| 142 | x += renderRect.width() + kTestPad; |
| 143 | } |
| 144 | y += renderRect.height() + kTestPad; |
| 145 | } |
| 146 | } |
| 147 | GrUnlockAndUnrefCachedBitmapTexture(texture); |
| 148 | } |
| 149 | |
| 150 | private: |
| 151 | SkBitmap fBmp; |
| 152 | |
| 153 | typedef GM INHERITED; |
| 154 | }; |
| 155 | |
| 156 | DEF_GM( return SkNEW(TextureDomainEffect); ) |
| 157 | } |
| 158 | |
| 159 | #endif |