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commit-bot@chromium.org103f2d02013-08-08 21:13:38 +00001/*
2 * Copyright 2013 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 */
reed48eb08a2015-12-25 12:56:03 -08007
Mike Kleinc0bd9f92019-04-23 12:05:21 -05008#include "gm/gm.h"
9#include "include/core/SkBitmap.h"
Ben Wagner7fde8e12019-05-01 17:28:53 -040010#include "include/core/SkBlendMode.h"
11#include "include/core/SkCanvas.h"
12#include "include/core/SkColor.h"
Mike Kleinc0bd9f92019-04-23 12:05:21 -050013#include "include/core/SkColorPriv.h"
Ben Wagner7fde8e12019-05-01 17:28:53 -040014#include "include/core/SkColorSpace.h"
15#include "include/core/SkFont.h"
16#include "include/core/SkImageInfo.h"
17#include "include/core/SkMatrix.h"
18#include "include/core/SkPaint.h"
19#include "include/core/SkPoint.h"
20#include "include/core/SkRect.h"
21#include "include/core/SkRefCnt.h"
22#include "include/core/SkScalar.h"
23#include "include/core/SkShader.h"
24#include "include/core/SkSize.h"
25#include "include/core/SkString.h"
Mike Kleinc0bd9f92019-04-23 12:05:21 -050026#include "include/core/SkSurface.h"
Ben Wagner7fde8e12019-05-01 17:28:53 -040027#include "include/core/SkTileMode.h"
28#include "include/core/SkTypeface.h"
29#include "include/core/SkTypes.h"
Mike Kleinc0bd9f92019-04-23 12:05:21 -050030#include "include/effects/SkGradientShader.h"
Mike Kleinc0bd9f92019-04-23 12:05:21 -050031#include "tools/ToolUtils.h"
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000032
Ben Wagner7fde8e12019-05-01 17:28:53 -040033#include <string.h>
34
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000035namespace skiagm {
36
37/**
38 * This tests drawing device-covering rects with solid colors and bitmap shaders over a
39 * checkerboard background using different xfermodes.
40 */
41class Xfermodes3GM : public GM {
42public:
Mike Kleinea3f0142019-03-20 11:12:10 -050043 Xfermodes3GM() { this->setBGColor(ToolUtils::color_to_565(0xFF70D0E0)); }
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000044
45protected:
mtklein36352bf2015-03-25 18:17:31 -070046 SkString onShortName() override {
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000047 return SkString("xfermodes3");
48 }
49
mtklein36352bf2015-03-25 18:17:31 -070050 SkISize onISize() override {
tfarinaf5393182014-06-09 23:59:03 -070051 return SkISize::Make(630, 1215);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000052 }
53
mtklein36352bf2015-03-25 18:17:31 -070054 void onDraw(SkCanvas* canvas) override {
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000055 canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
56
Mike Kleinea3f0142019-03-20 11:12:10 -050057 SkFont font(ToolUtils::create_portable_typeface());
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000058 SkPaint labelP;
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000059
mtkleindbfd7ab2016-09-01 11:24:54 -070060 constexpr SkColor kSolidColors[] = {
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000061 SK_ColorTRANSPARENT,
62 SK_ColorBLUE,
63 0x80808000
64 };
65
mtkleindbfd7ab2016-09-01 11:24:54 -070066 constexpr SkColor kBmpAlphas[] = {
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000067 0xff,
68 0x80,
69 };
70
Ben Wagnerd3c84ff2018-04-25 14:38:24 -040071 auto tempSurface(this->makeTempSurface(canvas, kSize, kSize));
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000072
73 int test = 0;
74 int x = 0, y = 0;
mtkleindbfd7ab2016-09-01 11:24:54 -070075 constexpr struct { SkPaint::Style fStyle; SkScalar fWidth; } kStrokes[] = {
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +000076 {SkPaint::kFill_Style, 0},
77 {SkPaint::kStroke_Style, SkIntToScalar(kSize) / 2},
78 };
79 for (size_t s = 0; s < SK_ARRAY_COUNT(kStrokes); ++s) {
Mike Reedd4706732016-11-15 16:44:34 -050080 for (size_t m = 0; m <= (size_t)SkBlendMode::kLastMode; ++m) {
reed374772b2016-10-05 17:33:02 -070081 SkBlendMode mode = static_cast<SkBlendMode>(m);
Cary Clark2a475ea2017-04-28 15:35:12 -040082 canvas->drawString(SkBlendMode_Name(mode),
Hal Canarydf2d27e2019-01-08 09:38:02 -050083 SkIntToScalar(x),
84 SkIntToScalar(y + kSize + 3) + font.getSize(),
85 font, labelP);
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +000086 for (size_t c = 0; c < SK_ARRAY_COUNT(kSolidColors); ++c) {
87 SkPaint modePaint;
reed374772b2016-10-05 17:33:02 -070088 modePaint.setBlendMode(mode);
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +000089 modePaint.setColor(kSolidColors[c]);
90 modePaint.setStyle(kStrokes[s].fStyle);
91 modePaint.setStrokeWidth(kStrokes[s].fWidth);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000092
reede8f30622016-03-23 18:59:25 -070093 this->drawMode(canvas, x, y, kSize, kSize, modePaint, tempSurface.get());
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +000094
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +000095 ++test;
96 x += kSize + 10;
97 if (!(test % kTestsPerRow)) {
98 x = 0;
99 y += kSize + 30;
100 }
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000101 }
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +0000102 for (size_t a = 0; a < SK_ARRAY_COUNT(kBmpAlphas); ++a) {
103 SkPaint modePaint;
reed374772b2016-10-05 17:33:02 -0700104 modePaint.setBlendMode(mode);
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +0000105 modePaint.setAlpha(kBmpAlphas[a]);
106 modePaint.setShader(fBmpShader);
107 modePaint.setStyle(kStrokes[s].fStyle);
108 modePaint.setStrokeWidth(kStrokes[s].fWidth);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000109
reede8f30622016-03-23 18:59:25 -0700110 this->drawMode(canvas, x, y, kSize, kSize, modePaint, tempSurface.get());
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000111
commit-bot@chromium.orgde1559c2013-08-14 19:20:45 +0000112 ++test;
113 x += kSize + 10;
114 if (!(test % kTestsPerRow)) {
115 x = 0;
116 y += kSize + 30;
117 }
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000118 }
119 }
120 }
121 }
122
123private:
124 /**
125 * GrContext has optimizations around full rendertarget draws that can be replaced with clears.
126 * We are trying to test those. We could use saveLayer() to create small SkGpuDevices but
127 * saveLayer() uses the texture cache. This means that the actual render target may be larger
128 * than the layer. Because the clip will contain the layer's bounds, no draws will be full-RT.
Ben Wagnerd3c84ff2018-04-25 14:38:24 -0400129 * So explicitly create a temporary canvas with dimensions exactly the layer size.
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000130 */
Ben Wagnerd3c84ff2018-04-25 14:38:24 -0400131 sk_sp<SkSurface> makeTempSurface(SkCanvas* baseCanvas, int w, int h) {
bsalomonafe30052015-01-16 07:32:33 -0800132 SkImageInfo baseInfo = baseCanvas->imageInfo();
133 SkImageInfo info = SkImageInfo::Make(w, h, baseInfo.colorType(), baseInfo.alphaType(),
Mike Reed693fdbd2017-01-12 10:13:40 -0500134 baseInfo.refColorSpace());
Ben Wagnerd3c84ff2018-04-25 14:38:24 -0400135 return baseCanvas->makeSurface(info);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000136 }
137
138 void drawMode(SkCanvas* canvas,
139 int x, int y, int w, int h,
reed48eb08a2015-12-25 12:56:03 -0800140 const SkPaint& modePaint, SkSurface* surface) {
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000141 canvas->save();
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000142 canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
143
144 SkRect r = SkRect::MakeWH(SkIntToScalar(w), SkIntToScalar(h));
145
146 SkCanvas* modeCanvas;
reed48eb08a2015-12-25 12:56:03 -0800147 if (nullptr == surface) {
halcanary96fcdcc2015-08-27 07:41:13 -0700148 canvas->saveLayer(&r, nullptr);
Ben Wagnerd3c84ff2018-04-25 14:38:24 -0400149 canvas->clipRect(r);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000150 modeCanvas = canvas;
151 } else {
reed48eb08a2015-12-25 12:56:03 -0800152 modeCanvas = surface->getCanvas();
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000153 }
154
155 SkPaint bgPaint;
156 bgPaint.setAntiAlias(false);
157 bgPaint.setShader(fBGShader);
158 modeCanvas->drawRect(r, bgPaint);
159 modeCanvas->drawRect(r, modePaint);
halcanary96fcdcc2015-08-27 07:41:13 -0700160 modeCanvas = nullptr;
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000161
reed48eb08a2015-12-25 12:56:03 -0800162 if (nullptr == surface) {
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000163 canvas->restore();
164 } else {
Mike Reedb746b1f2021-01-06 08:43:51 -0500165 surface->draw(canvas, 0, 0);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000166 }
167
168 r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
169 SkPaint borderPaint;
170 borderPaint.setStyle(SkPaint::kStroke_Style);
171 canvas->drawRect(r, borderPaint);
172
173 canvas->restore();
174 }
175
mtklein36352bf2015-03-25 18:17:31 -0700176 void onOnceBeforeDraw() override {
mtkleindbfd7ab2016-09-01 11:24:54 -0700177 const uint32_t kCheckData[] = {
caryclark4ec1ac62015-07-21 07:42:45 -0700178 SkPackARGB32(0xFF, 0x42, 0x41, 0x42),
179 SkPackARGB32(0xFF, 0xD6, 0xD3, 0xD6),
180 SkPackARGB32(0xFF, 0xD6, 0xD3, 0xD6),
181 SkPackARGB32(0xFF, 0x42, 0x41, 0x42)
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000182 };
183 SkBitmap bg;
reed@google.comeb9a46c2014-01-25 16:46:20 +0000184 bg.allocN32Pixels(2, 2, true);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000185 memcpy(bg.getPixels(), kCheckData, sizeof(kCheckData));
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000186
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000187 SkMatrix lm;
188 lm.setScale(SkIntToScalar(kCheckSize), SkIntToScalar(kCheckSize));
Mike Reedb41bd152020-12-12 11:18:31 -0500189 fBGShader = bg.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
190 SkSamplingOptions(), lm);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000191
192 SkPaint bmpPaint;
reed1a9b9642016-03-13 14:13:58 -0700193 const SkPoint kCenter = { SkIntToScalar(kSize) / 2, SkIntToScalar(kSize) / 2 };
194 const SkColor kColors[] = {
195 SK_ColorTRANSPARENT, 0x80800000, 0xF020F060, SK_ColorWHITE
196 };
197 bmpPaint.setShader(SkGradientShader::MakeRadial(kCenter, 3 * SkIntToScalar(kSize) / 4,
198 kColors, nullptr, SK_ARRAY_COUNT(kColors),
Mike Reedfae8fce2019-04-03 10:27:45 -0400199 SkTileMode::kRepeat));
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000200
201 SkBitmap bmp;
reed@google.comeb9a46c2014-01-25 16:46:20 +0000202 bmp.allocN32Pixels(kSize, kSize);
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000203 SkCanvas bmpCanvas(bmp);
204
205 bmpCanvas.clear(SK_ColorTRANSPARENT);
206 SkRect rect = { SkIntToScalar(kSize) / 8, SkIntToScalar(kSize) / 8,
207 7 * SkIntToScalar(kSize) / 8, 7 * SkIntToScalar(kSize) / 8};
208 bmpCanvas.drawRect(rect, bmpPaint);
209
Mike Reedb41bd152020-12-12 11:18:31 -0500210 fBmpShader = bmp.makeShader(SkSamplingOptions());
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000211 }
212
213 enum {
214 kCheckSize = 8,
215 kSize = 30,
216 kTestsPerRow = 15,
217 };
218
reed1a9b9642016-03-13 14:13:58 -0700219 sk_sp<SkShader> fBGShader;
220 sk_sp<SkShader> fBmpShader;
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000221
John Stiles7571f9e2020-09-02 22:42:33 -0400222 using INHERITED = GM;
commit-bot@chromium.org103f2d02013-08-08 21:13:38 +0000223};
224
225//////////////////////////////////////////////////////////////////////////////
226
227DEF_GM(return new Xfermodes3GM;)
228
John Stilesa6841be2020-08-06 14:11:56 -0400229} // namespace skiagm