bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2015 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/GrConstColorProcessor.h" |
| 18 | #include "SkGr.h" |
| 19 | #include "SkGradientShader.h" |
| 20 | |
| 21 | namespace skiagm { |
| 22 | /** |
| 23 | * This GM directly exercises GrConstColorProcessor. |
| 24 | */ |
| 25 | class ConstColorProcessor : public GM { |
| 26 | public: |
| 27 | ConstColorProcessor() { |
caryclark | 65cdba6 | 2015-06-15 06:51:08 -0700 | [diff] [blame] | 28 | this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD)); |
bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 29 | } |
| 30 | |
| 31 | protected: |
| 32 | SkString onShortName() override { |
| 33 | return SkString("const_color_processor"); |
| 34 | } |
| 35 | |
| 36 | SkISize onISize() override { |
| 37 | return SkISize::Make(kWidth, kHeight); |
| 38 | } |
| 39 | |
| 40 | void onOnceBeforeDraw() override { |
| 41 | SkColor colors[] = { 0xFFFF0000, 0x2000FF00, 0xFF0000FF}; |
| 42 | SkPoint pts[] = { SkPoint::Make(0, 0), SkPoint::Make(kRectSize, kRectSize) }; |
| 43 | fShader.reset(SkGradientShader::CreateLinear(pts, colors, NULL, SK_ARRAY_COUNT(colors), |
| 44 | SkShader::kClamp_TileMode)); |
| 45 | } |
| 46 | |
| 47 | void onDraw(SkCanvas* canvas) override { |
| 48 | GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget(); |
| 49 | if (NULL == rt) { |
| 50 | return; |
| 51 | } |
| 52 | GrContext* context = rt->getContext(); |
| 53 | if (NULL == context) { |
| 54 | this->drawGpuOnlyMessage(canvas); |
| 55 | return; |
| 56 | } |
| 57 | |
| 58 | static const GrColor kColors[] = { |
| 59 | 0xFFFFFFFF, |
| 60 | 0xFFFF00FF, |
| 61 | 0x80000000, |
| 62 | 0x00000000, |
| 63 | }; |
| 64 | |
| 65 | static const SkColor kPaintColors[] = { |
| 66 | 0xFFFFFFFF, |
| 67 | 0xFFFF0000, |
| 68 | 0x80FF0000, |
| 69 | 0x00000000, |
| 70 | }; |
| 71 | |
| 72 | static const char* kModeStrs[] { |
| 73 | "kIgnore", |
| 74 | "kModulateRGBA", |
| 75 | "kModulateA", |
| 76 | }; |
| 77 | GR_STATIC_ASSERT(SK_ARRAY_COUNT(kModeStrs) == GrConstColorProcessor::kInputModeCnt); |
| 78 | |
| 79 | SkScalar y = kPad; |
| 80 | SkScalar x = kPad; |
| 81 | SkScalar maxW = 0; |
| 82 | for (size_t paintType = 0; paintType < SK_ARRAY_COUNT(kPaintColors) + 1; ++paintType) { |
| 83 | for (size_t procColor = 0; procColor < SK_ARRAY_COUNT(kColors); ++procColor) { |
| 84 | for (int m = 0; m < GrConstColorProcessor::kInputModeCnt; ++m) { |
| 85 | // translate by x,y for the canvas draws and the test target draws. |
| 86 | canvas->save(); |
| 87 | canvas->translate(x, y); |
| 88 | const SkMatrix viewMatrix = SkMatrix::MakeTrans(x, y); |
| 89 | |
| 90 | // rect to draw |
| 91 | SkRect renderRect = SkRect::MakeXYWH(0, 0, kRectSize, kRectSize); |
| 92 | |
| 93 | GrTestTarget tt; |
| 94 | context->getTestTarget(&tt); |
| 95 | if (NULL == tt.target()) { |
| 96 | SkDEBUGFAIL("Couldn't get Gr test target."); |
| 97 | return; |
| 98 | } |
| 99 | |
| 100 | GrPaint grPaint; |
| 101 | SkPaint skPaint; |
| 102 | if (paintType >= SK_ARRAY_COUNT(kPaintColors)) { |
| 103 | skPaint.setShader(fShader); |
| 104 | } else { |
| 105 | skPaint.setColor(kPaintColors[paintType]); |
| 106 | } |
bsalomon | bed83a6 | 2015-04-15 14:18:34 -0700 | [diff] [blame] | 107 | SkAssertResult(SkPaint2GrPaint(context, rt, skPaint, viewMatrix, false, |
| 108 | &grPaint)); |
bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 109 | |
| 110 | GrConstColorProcessor::InputMode mode = (GrConstColorProcessor::InputMode) m; |
| 111 | GrColor color = kColors[procColor]; |
| 112 | SkAutoTUnref<GrFragmentProcessor> fp(GrConstColorProcessor::Create(color, mode)); |
| 113 | |
bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 114 | GrClip clip; |
joshualitt | 7b670db | 2015-07-09 13:25:02 -0700 | [diff] [blame] | 115 | GrPipelineBuilder pipelineBuilder(grPaint, rt, clip); |
rmistry | 4bf69f7 | 2015-08-26 06:48:27 -0700 | [diff] [blame] | 116 | pipelineBuilder.addColorProcessor(fp); |
bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 117 | |
joshualitt | d2b23e0 | 2015-08-21 10:53:34 -0700 | [diff] [blame] | 118 | tt.target()->drawNonAARect(pipelineBuilder, |
| 119 | grPaint.getColor(), |
| 120 | viewMatrix, |
| 121 | renderRect); |
bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 122 | |
| 123 | // Draw labels for the input to the processor and the processor to the right of |
| 124 | // the test rect. The input label appears above the processor label. |
| 125 | SkPaint labelPaint; |
caryclark | 1818acb | 2015-07-24 12:09:25 -0700 | [diff] [blame] | 126 | sk_tool_utils::set_portable_typeface(&labelPaint); |
bsalomon | c9c3e62 | 2015-04-02 11:12:09 -0700 | [diff] [blame] | 127 | labelPaint.setAntiAlias(true); |
| 128 | labelPaint.setTextSize(10.f); |
| 129 | SkString inputLabel; |
| 130 | inputLabel.set("Input: "); |
| 131 | if (paintType >= SK_ARRAY_COUNT(kPaintColors)) { |
| 132 | inputLabel.append("gradient"); |
| 133 | } else { |
| 134 | inputLabel.appendf("0x%08x", kPaintColors[paintType]); |
| 135 | } |
| 136 | SkString procLabel; |
| 137 | procLabel.printf("Proc: [0x%08x, %s]", kColors[procColor], kModeStrs[m]); |
| 138 | |
| 139 | SkRect inputLabelBounds; |
| 140 | // get the bounds of the text in order to position it |
| 141 | labelPaint.measureText(inputLabel.c_str(), inputLabel.size(), |
| 142 | &inputLabelBounds); |
| 143 | canvas->drawText(inputLabel.c_str(), inputLabel.size(), |
| 144 | renderRect.fRight + kPad, |
| 145 | -inputLabelBounds.fTop, labelPaint); |
| 146 | // update the bounds to reflect the offset we used to draw it. |
| 147 | inputLabelBounds.offset(renderRect.fRight + kPad, -inputLabelBounds.fTop); |
| 148 | |
| 149 | SkRect procLabelBounds; |
| 150 | labelPaint.measureText(procLabel.c_str(), procLabel.size(), |
| 151 | &procLabelBounds); |
| 152 | canvas->drawText(procLabel.c_str(), procLabel.size(), |
| 153 | renderRect.fRight + kPad, |
| 154 | inputLabelBounds.fBottom + 2.f - procLabelBounds.fTop, |
| 155 | labelPaint); |
| 156 | procLabelBounds.offset(renderRect.fRight + kPad, |
| 157 | inputLabelBounds.fBottom + 2.f - procLabelBounds.fTop); |
| 158 | |
| 159 | labelPaint.setStrokeWidth(0); |
| 160 | labelPaint.setStyle(SkPaint::kStroke_Style); |
| 161 | canvas->drawRect(renderRect, labelPaint); |
| 162 | |
| 163 | canvas->restore(); |
| 164 | |
| 165 | // update x and y for the next test case. |
| 166 | SkScalar height = renderRect.height(); |
| 167 | SkScalar width = SkTMax(inputLabelBounds.fRight, procLabelBounds.fRight); |
| 168 | maxW = SkTMax(maxW, width); |
| 169 | y += height + kPad; |
| 170 | if (y + height > kHeight) { |
| 171 | y = kPad; |
| 172 | x += maxW + kPad; |
| 173 | maxW = 0; |
| 174 | } |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | private: |
| 181 | // Use this as a way of generating and input FP |
| 182 | SkAutoTUnref<SkShader> fShader; |
| 183 | |
| 184 | static const SkScalar kPad; |
| 185 | static const SkScalar kRectSize; |
| 186 | static const int kWidth = 820; |
| 187 | static const int kHeight = 500; |
| 188 | |
| 189 | typedef GM INHERITED; |
| 190 | }; |
| 191 | |
| 192 | const SkScalar ConstColorProcessor::kPad = 10.f; |
| 193 | const SkScalar ConstColorProcessor::kRectSize = 20.f; |
| 194 | |
| 195 | DEF_GM( return SkNEW(ConstColorProcessor); ) |
| 196 | } |
| 197 | |
| 198 | #endif |