OLD | NEW |
(Empty) | |
| 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/GrYUVtoRGBEffect.h" |
| 18 #include "SkBitmap.h" |
| 19 #include "SkGr.h" |
| 20 #include "SkGradientShader.h" |
| 21 |
| 22 namespace skiagm { |
| 23 /** |
| 24 * This GM directly exercises GrYUVtoRGBEffect. |
| 25 */ |
| 26 class YUVtoRGBEffect : public GM { |
| 27 public: |
| 28 YUVtoRGBEffect() { |
| 29 this->setBGColor(0xFFFFFFFF); |
| 30 } |
| 31 |
| 32 protected: |
| 33 virtual SkString onShortName() SK_OVERRIDE { |
| 34 return SkString("yuv_to_rgb_effect"); |
| 35 } |
| 36 |
| 37 virtual SkISize onISize() SK_OVERRIDE { |
| 38 return SkISize::Make(334, 64); |
| 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 SkImageInfo info = SkImageInfo::MakeA8(24, 24); |
| 48 fBmp[0].allocPixels(info); |
| 49 fBmp[1].allocPixels(info); |
| 50 fBmp[2].allocPixels(info); |
| 51 unsigned char* pixels[3]; |
| 52 for (int i = 0; i < 3; ++i) { |
| 53 pixels[i] = (unsigned char*)fBmp[i].getPixels(); |
| 54 } |
| 55 int color[] = {0, 85, 170}; |
| 56 const int limit[] = {255, 0, 255}; |
| 57 const int invl[] = {0, 255, 0}; |
| 58 const int inc[] = {1, -1, 1}; |
| 59 for (int j = 0; j < 576; ++j) { |
| 60 for (int i = 0; i < 3; ++i) { |
| 61 pixels[i][j] = (unsigned char)color[i]; |
| 62 color[i] = (color[i] == limit[i]) ? invl[i] : color[i] + inc[i]; |
| 63 } |
| 64 } |
| 65 } |
| 66 |
| 67 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 68 GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget
(); |
| 69 if (NULL == rt) { |
| 70 return; |
| 71 } |
| 72 GrContext* context = rt->getContext(); |
| 73 if (NULL == context) { |
| 74 return; |
| 75 } |
| 76 |
| 77 GrTestTarget tt; |
| 78 context->getTestTarget(&tt); |
| 79 if (NULL == tt.target()) { |
| 80 SkDEBUGFAIL("Couldn't get Gr test target."); |
| 81 return; |
| 82 } |
| 83 |
| 84 GrDrawState* drawState = tt.target()->drawState(); |
| 85 |
| 86 GrTexture* texture[3]; |
| 87 texture[0] = GrLockAndRefCachedBitmapTexture(context, fBmp[0], NULL); |
| 88 texture[1] = GrLockAndRefCachedBitmapTexture(context, fBmp[1], NULL); |
| 89 texture[2] = GrLockAndRefCachedBitmapTexture(context, fBmp[2], NULL); |
| 90 if ((NULL == texture[0]) || (NULL == texture[1]) || (NULL == texture[2])
) { |
| 91 return; |
| 92 } |
| 93 |
| 94 static const SkScalar kDrawPad = 10.f; |
| 95 static const SkScalar kTestPad = 10.f; |
| 96 |
| 97 SkRect renderRect = SkRect::MakeWH(SkIntToScalar(fBmp[0].width()), |
| 98 SkIntToScalar(fBmp[0].height())); |
| 99 renderRect.outset(kDrawPad, kDrawPad); |
| 100 |
| 101 SkScalar y = kDrawPad + kTestPad; |
| 102 SkScalar x = kDrawPad + kTestPad; |
| 103 |
| 104 const int indices[6][3] = {{0, 1, 2}, {0, 2, 1}, {1, 0, 2}, {1, 2, 0}, {
2, 0, 1}, {2, 1, 0}}; |
| 105 |
| 106 for (int i = 0; i < 6; ++i) { |
| 107 SkAutoTUnref<GrEffectRef> effect( |
| 108 GrYUVtoRGBEffect::Create(texture[indices[i][0]], |
| 109 texture[indices[i][1]], |
| 110 texture[indices[i][2]])); |
| 111 if (effect) { |
| 112 SkMatrix viewMatrix; |
| 113 viewMatrix.setTranslate(x, y); |
| 114 drawState->reset(viewMatrix); |
| 115 drawState->setRenderTarget(rt); |
| 116 drawState->setColor(0xffffffff); |
| 117 drawState->addColorEffect(effect, 1); |
| 118 tt.target()->drawSimpleRect(renderRect); |
| 119 } |
| 120 x += renderRect.width() + kTestPad; |
| 121 } |
| 122 |
| 123 GrUnlockAndUnrefCachedBitmapTexture(texture[0]); |
| 124 GrUnlockAndUnrefCachedBitmapTexture(texture[1]); |
| 125 GrUnlockAndUnrefCachedBitmapTexture(texture[2]); |
| 126 } |
| 127 |
| 128 private: |
| 129 SkBitmap fBmp[3]; |
| 130 |
| 131 typedef GM INHERITED; |
| 132 }; |
| 133 |
| 134 DEF_GM( return SkNEW(YUVtoRGBEffect); ) |
| 135 } |
| 136 |
| 137 #endif |
OLD | NEW |