senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 9 | #include "include/core/SkBitmap.h" |
| 10 | #include "include/core/SkCanvas.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 11 | #include "include/core/SkColor.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 12 | #include "include/core/SkFont.h" |
| 13 | #include "include/core/SkImageFilter.h" |
| 14 | #include "include/core/SkPaint.h" |
| 15 | #include "include/core/SkPoint.h" |
| 16 | #include "include/core/SkRect.h" |
| 17 | #include "include/core/SkScalar.h" |
| 18 | #include "include/core/SkShader.h" |
| 19 | #include "include/core/SkSize.h" |
| 20 | #include "include/core/SkString.h" |
| 21 | #include "include/core/SkTileMode.h" |
| 22 | #include "include/core/SkTypeface.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 23 | #include "include/effects/SkGradientShader.h" |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 24 | #include "include/effects/SkImageFilters.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 25 | #include "tools/ToolUtils.h" |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 26 | |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 27 | #include <vector> |
| 28 | |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 29 | namespace skiagm { |
| 30 | |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 31 | enum KernelFixture { |
| 32 | kBasic_KernelFixture, |
| 33 | kLarge_KernelFixture |
| 34 | }; |
| 35 | |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 36 | class MatrixConvolutionGM : public GM { |
| 37 | public: |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 38 | MatrixConvolutionGM(SkColor colorOne, SkColor colorTwo, KernelFixture kernelFixture, const char* nameSuffix) |
| 39 | : fNameSuffix(nameSuffix), |
| 40 | fKernelFixture(kernelFixture) { |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 41 | this->setBGColor(0x00000000); |
Brian Osman | 878df6d | 2016-12-27 11:04:12 -0500 | [diff] [blame] | 42 | fColors[0] = colorOne; |
| 43 | fColors[1] = colorTwo; |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 47 | |
robertphillips | 943a462 | 2015-09-03 13:32:33 -0700 | [diff] [blame] | 48 | SkString onShortName() override { |
Brian Osman | 878df6d | 2016-12-27 11:04:12 -0500 | [diff] [blame] | 49 | return SkStringPrintf("matrixconvolution%s", fNameSuffix); |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 50 | } |
| 51 | |
robertphillips | 943a462 | 2015-09-03 13:32:33 -0700 | [diff] [blame] | 52 | void makeBitmap() { |
Brian Osman | 878df6d | 2016-12-27 11:04:12 -0500 | [diff] [blame] | 53 | // Draw our bitmap in N32, so legacy devices get "premul" values they understand |
Brian Osman | c69c441 | 2018-07-10 15:50:11 -0400 | [diff] [blame] | 54 | fBitmap.allocN32Pixels(80, 80); |
| 55 | SkCanvas canvas(fBitmap); |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 56 | canvas.clear(0x00000000); |
| 57 | SkPaint paint; |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 58 | paint.setColor(0xFFFFFFFF); |
Hal Canary | df2d27e | 2019-01-08 09:38:02 -0500 | [diff] [blame] | 59 | SkPoint pts[2] = { {0, 0}, |
| 60 | {0, 80.0f} }; |
| 61 | SkScalar pos[2] = { 0, 80.0f }; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 62 | paint.setShader(SkGradientShader::MakeLinear( |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 63 | pts, fColors, pos, 2, SkTileMode::kClamp)); |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 64 | SkFont font(ToolUtils::create_portable_typeface(), 180.0f); |
Hal Canary | df2d27e | 2019-01-08 09:38:02 -0500 | [diff] [blame] | 65 | canvas.drawString("e", -10.0f, 80.0f, font, paint); |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 66 | } |
| 67 | |
robertphillips | 943a462 | 2015-09-03 13:32:33 -0700 | [diff] [blame] | 68 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 69 | return SkISize::Make(500, 300); |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 70 | } |
| 71 | |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 72 | sk_sp<SkImageFilter> makeFilter(const SkIPoint &kernelOffset, SkTileMode tileMode, |
| 73 | bool convolveAlpha, const SkIRect *cropRect = nullptr) { |
| 74 | switch (fKernelFixture) { |
| 75 | case kBasic_KernelFixture: { |
| 76 | // All 1s except center value, which is -7 (sum of 1). |
| 77 | std::vector<SkScalar> kernel(9, SkIntToScalar(1)); |
| 78 | kernel[4] = SkIntToScalar(-7); |
| 79 | return SkImageFilters::MatrixConvolution({3,3}, kernel.data(), /* gain */ 0.3f, /* bias */ SkIntToScalar(100), kernelOffset, tileMode, convolveAlpha, nullptr, cropRect); |
| 80 | } |
| 81 | case kLarge_KernelFixture: { |
| 82 | // Intentionally go over the MAX_KERNEL_SIZE limit and trigger CPU fallback. |
| 83 | // All 1s except center value, which is -47 (sum of 1). |
| 84 | std::vector<SkScalar> kernel(49, SkIntToScalar(1)); |
| 85 | kernel[24] = SkIntToScalar(-47); |
| 86 | return SkImageFilters::MatrixConvolution({7,7}, kernel.data(), /* gain */ 0.3f, /* bias */ SkIntToScalar(100), kernelOffset, tileMode, convolveAlpha, nullptr, cropRect); |
| 87 | } |
| 88 | default: |
| 89 | return nullptr; |
| 90 | } |
| 91 | } |
| 92 | |
commit-bot@chromium.org | 84cd099 | 2014-03-12 16:36:08 +0000 | [diff] [blame] | 93 | void draw(SkCanvas* canvas, int x, int y, const SkIPoint& kernelOffset, |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 94 | SkTileMode tileMode, bool convolveAlpha, |
| 95 | const SkIRect* cropRect = nullptr) { |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 96 | SkPaint paint; |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 97 | paint.setImageFilter(this->makeFilter(kernelOffset, tileMode, convolveAlpha, cropRect)); |
junov@chromium.org | ff06af2 | 2013-01-14 16:27:50 +0000 | [diff] [blame] | 98 | canvas->save(); |
senorblanco@chromium.org | 7938bae | 2013-10-18 20:08:14 +0000 | [diff] [blame] | 99 | canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
Robert Phillips | 1207843 | 2018-05-17 11:17:39 -0400 | [diff] [blame] | 100 | const SkRect layerBounds = SkRect::MakeIWH(fBitmap.width(), fBitmap.height()); |
| 101 | canvas->clipRect(layerBounds); |
| 102 | // This GM is, in part, intended to display the wrapping behavior of the |
| 103 | // matrix image filter. The only (rational) way to achieve that for repeat mode |
| 104 | // is to create a tight layer. |
| 105 | canvas->saveLayer(layerBounds, &paint); |
| 106 | canvas->drawBitmap(fBitmap, 0, 0, nullptr); |
| 107 | canvas->restore(); |
junov@chromium.org | ff06af2 | 2013-01-14 16:27:50 +0000 | [diff] [blame] | 108 | canvas->restore(); |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 109 | } |
| 110 | |
robertphillips | 943a462 | 2015-09-03 13:32:33 -0700 | [diff] [blame] | 111 | void onOnceBeforeDraw() override { |
| 112 | this->makeBitmap(); |
| 113 | } |
| 114 | |
| 115 | void onDraw(SkCanvas* canvas) override { |
senorblanco | 16b254a | 2015-04-09 11:13:24 -0700 | [diff] [blame] | 116 | canvas->clear(SK_ColorBLACK); |
commit-bot@chromium.org | 84cd099 | 2014-03-12 16:36:08 +0000 | [diff] [blame] | 117 | SkIPoint kernelOffset = SkIPoint::Make(1, 0); |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 118 | SkIRect rect = fBitmap.bounds(); |
senorblanco@chromium.org | 3bc16c8 | 2012-10-04 17:18:20 +0000 | [diff] [blame] | 119 | for (int x = 10; x < 310; x += 100) { |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 120 | this->draw(canvas, x, 10, kernelOffset, SkTileMode::kClamp, true, &rect); |
| 121 | this->draw(canvas, x, 110, kernelOffset, SkTileMode::kDecal, true, &rect); |
| 122 | this->draw(canvas, x, 210, kernelOffset, SkTileMode::kRepeat, true, &rect); |
commit-bot@chromium.org | 84cd099 | 2014-03-12 16:36:08 +0000 | [diff] [blame] | 123 | kernelOffset.fY++; |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 124 | } |
commit-bot@chromium.org | 84cd099 | 2014-03-12 16:36:08 +0000 | [diff] [blame] | 125 | kernelOffset.fY = 1; |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 126 | SkIRect smallRect = SkIRect::MakeXYWH(10, 5, 60, 60); |
| 127 | this->draw(canvas, 310, 10, kernelOffset, SkTileMode::kClamp, true, &smallRect); |
| 128 | this->draw(canvas, 310, 110, kernelOffset, SkTileMode::kDecal, true, &smallRect); |
| 129 | this->draw(canvas, 310, 210, kernelOffset, SkTileMode::kRepeat, true, &smallRect); |
senorblanco@chromium.org | 7938bae | 2013-10-18 20:08:14 +0000 | [diff] [blame] | 130 | |
Michael Ludwig | 898bbfa | 2019-08-02 15:21:23 -0400 | [diff] [blame] | 131 | this->draw(canvas, 410, 10, kernelOffset, SkTileMode::kClamp, false, &rect); |
| 132 | this->draw(canvas, 410, 110, kernelOffset, SkTileMode::kDecal, false, &rect); |
| 133 | this->draw(canvas, 410, 210, kernelOffset, SkTileMode::kRepeat, false, &rect); |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | private: |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 137 | SkBitmap fBitmap; |
Brian Osman | 878df6d | 2016-12-27 11:04:12 -0500 | [diff] [blame] | 138 | SkColor fColors[2]; |
| 139 | const char* fNameSuffix; |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 140 | KernelFixture fKernelFixture; |
robertphillips | 943a462 | 2015-09-03 13:32:33 -0700 | [diff] [blame] | 141 | |
| 142 | typedef GM INHERITED; |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 143 | }; |
| 144 | |
| 145 | ////////////////////////////////////////////////////////////////////////////// |
| 146 | |
Adlai Holler | bd1466c | 2020-01-14 21:02:37 -0800 | [diff] [blame] | 147 | DEF_GM(return new MatrixConvolutionGM(0xFFFFFFFF, 0x40404040, KernelFixture::kBasic_KernelFixture, "");) |
| 148 | DEF_GM(return new MatrixConvolutionGM(0xFFFF0000, 0xFF00FF00, KernelFixture::kBasic_KernelFixture, "_color");) |
| 149 | DEF_GM(return new MatrixConvolutionGM(0xFFFFFFFF, 0x40404040, KernelFixture::kLarge_KernelFixture, "_big");) |
| 150 | DEF_GM(return new MatrixConvolutionGM(0xFFFF0000, 0xFF00FF00, KernelFixture::kLarge_KernelFixture, "_big_color");) |
senorblanco@chromium.org | 5faa2dc | 2012-09-18 20:32:34 +0000 | [diff] [blame] | 151 | |
| 152 | } |