2 * Copyright 2011 Google Inc.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
8 #include "sk_tool_utils.h"
9 #include "SkColorFilter.h"
10 #include "SkMaskFilter.h"
18 #include "SkGradientShader.h"
19 #include "SkBlurDrawLooper.h"
21 static void makebm(SkBitmap* bm, SkColorType ct, int w, int h) {
22 bm->allocPixels(SkImageInfo::Make(w, h, ct, kPremul_SkAlphaType));
23 bm->eraseColor(SK_ColorTRANSPARENT);
26 SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(w), SkIntToScalar(h)} };
27 SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
28 SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
31 paint.setDither(true);
32 paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, SK_ARRAY_COUNT(colors),
33 SkShader::kClamp_TileMode));
34 canvas.drawPaint(paint);
37 static void setup(SkPaint* paint, const SkBitmap& bm, bool filter,
38 SkShader::TileMode tmx, SkShader::TileMode tmy) {
39 paint->setShader(SkShader::MakeBitmapShader(bm, tmx, tmy));
40 paint->setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality);
43 constexpr SkColorType gColorTypes[] = {
48 class TilingGM : public skiagm::GM {
50 TilingGM(bool powerOfTwoSize)
51 : fPowerOfTwoSize(powerOfTwoSize) {
54 SkBitmap fTexture[SK_ARRAY_COUNT(gColorTypes)];
63 SkString onShortName() override {
64 SkString name("tilemodes");
65 if (!fPowerOfTwoSize) {
71 SkISize onISize() override { return SkISize::Make(880, 560); }
73 void onOnceBeforeDraw() override {
74 int size = fPowerOfTwoSize ? kPOTSize : kNPOTSize;
75 for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) {
76 makebm(&fTexture[i], gColorTypes[i], size, size);
80 void onDraw(SkCanvas* canvas) override {
82 int size = fPowerOfTwoSize ? kPOTSize : kNPOTSize;
84 SkRect r = { 0, 0, SkIntToScalar(size*2), SkIntToScalar(size*2) };
86 const char* gConfigNames[] = { "8888", "565", "4444" };
88 constexpr bool gFilters[] = { false, true };
89 static const char* gFilterNames[] = { "point", "bilinear" };
91 constexpr SkShader::TileMode gModes[] = {
92 SkShader::kClamp_TileMode, SkShader::kRepeat_TileMode, SkShader::kMirror_TileMode };
93 static const char* gModeNames[] = { "C", "R", "M" };
95 SkScalar y = SkIntToScalar(24);
96 SkScalar x = SkIntToScalar(10);
98 for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
99 for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
102 p.setAntiAlias(true);
103 sk_tool_utils::set_portable_typeface(&p);
105 str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]);
107 p.setTextAlign(SkPaint::kCenter_Align);
108 canvas->drawString(str, x + r.width()/2, y, p);
110 x += r.width() * 4 / 3;
114 y += SkIntToScalar(16);
116 for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) {
117 for (size_t j = 0; j < SK_ARRAY_COUNT(gFilters); j++) {
118 x = SkIntToScalar(10);
119 for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
120 for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
122 #if 1 // Temporary change to regen bitmap before each draw. This may help tracking down an issue
123 // on SGX where resizing NPOT textures to POT textures exhibits a driver bug.
124 if (!fPowerOfTwoSize) {
125 makebm(&fTexture[i], gColorTypes[i], size, size);
128 setup(&paint, fTexture[i], gFilters[j], gModes[kx], gModes[ky]);
129 paint.setDither(true);
132 canvas->translate(x, y);
133 canvas->drawRect(r, paint);
136 x += r.width() * 4 / 3;
142 p.setAntiAlias(true);
143 sk_tool_utils::set_portable_typeface(&p);
144 str.printf("%s, %s", gConfigNames[i], gFilterNames[j]);
145 canvas->drawString(str, x, y + r.height() * 2 / 3, p);
148 y += r.height() * 4 / 3;
154 bool fPowerOfTwoSize;
155 typedef skiagm::GM INHERITED;
158 constexpr int gWidth = 32;
159 constexpr int gHeight = 32;
161 static sk_sp<SkShader> make_bm(SkShader::TileMode tx, SkShader::TileMode ty) {
163 makebm(&bm, kN32_SkColorType, gWidth, gHeight);
164 return SkShader::MakeBitmapShader(bm, tx, ty);
167 static sk_sp<SkShader> make_grad(SkShader::TileMode tx, SkShader::TileMode ty) {
168 SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(gWidth), SkIntToScalar(gHeight)} };
169 SkPoint center = { SkIntToScalar(gWidth)/2, SkIntToScalar(gHeight)/2 };
170 SkScalar rad = SkIntToScalar(gWidth)/2;
171 SkColor colors[] = { 0xFFFF0000, sk_tool_utils::color_to_565(0xFF0044FF) };
176 return SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors), tx);
178 return SkGradientShader::MakeRadial(center, rad, colors, nullptr, SK_ARRAY_COUNT(colors), tx);
180 return SkGradientShader::MakeSweep(center.fX, center.fY, colors, nullptr, SK_ARRAY_COUNT(colors));
185 typedef sk_sp<SkShader> (*ShaderProc)(SkShader::TileMode, SkShader::TileMode);
187 class Tiling2GM : public skiagm::GM {
191 Tiling2GM(ShaderProc proc, const char name[]) : fProc(proc) {
192 fName.printf("tilemode_%s", name);
197 SkString onShortName() override {
201 SkISize onISize() override { return SkISize::Make(650, 610); }
203 void onDraw(SkCanvas* canvas) override {
204 canvas->scale(SkIntToScalar(3)/2, SkIntToScalar(3)/2);
206 const SkScalar w = SkIntToScalar(gWidth);
207 const SkScalar h = SkIntToScalar(gHeight);
208 SkRect r = { -w, -h, w*2, h*2 };
210 constexpr SkShader::TileMode gModes[] = {
211 SkShader::kClamp_TileMode, SkShader::kRepeat_TileMode, SkShader::kMirror_TileMode
213 const char* gModeNames[] = {
214 "Clamp", "Repeat", "Mirror"
217 SkScalar y = SkIntToScalar(24);
218 SkScalar x = SkIntToScalar(66);
221 p.setAntiAlias(true);
222 sk_tool_utils::set_portable_typeface(&p);
223 p.setTextAlign(SkPaint::kCenter_Align);
225 for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
226 SkString str(gModeNames[kx]);
227 canvas->drawString(str, x + r.width()/2, y, p);
228 x += r.width() * 4 / 3;
231 y += SkIntToScalar(16) + h;
232 p.setTextAlign(SkPaint::kRight_Align);
234 for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
235 x = SkIntToScalar(16) + w;
237 SkString str(gModeNames[ky]);
238 canvas->drawString(str, x, y + h/2, p);
240 x += SkIntToScalar(50);
241 for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
243 paint.setShader(fProc(gModes[kx], gModes[ky]));
246 canvas->translate(x, y);
247 canvas->drawRect(r, paint);
250 x += r.width() * 4 / 3;
252 y += r.height() * 4 / 3;
257 typedef skiagm::GM INHERITED;
260 //////////////////////////////////////////////////////////////////////////////
262 DEF_GM( return new TilingGM(true); )
263 DEF_GM( return new TilingGM(false); )
264 DEF_GM( return new Tiling2GM(make_bm, "bitmap"); )
265 DEF_GM( return new Tiling2GM(make_grad, "gradient"); )