3 * Copyright 2011 Google Inc.
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
10 #include "SkGradientShader.h"
11 #include "SkGraphics.h"
16 static void make_bitmap(SkBitmap* bitmap) {
17 bitmap->allocN32Pixels(64, 64);
19 SkCanvas canvas(*bitmap);
21 canvas.drawColor(SK_ColorRED);
23 paint.setAntiAlias(true);
24 const SkPoint pts[] = { { 0, 0 }, { 64, 64 } };
25 const SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE };
26 paint.setShader(SkGradientShader::CreateLinear(pts, colors, NULL, 2,
27 SkShader::kClamp_TileMode))->unref();
28 canvas.drawCircle(32, 32, 32, paint);
31 class DrawBitmapRect2 : public skiagm::GM {
34 DrawBitmapRect2(bool useIRect) : fUseIRect(useIRect) {
38 virtual SkString onShortName() SK_OVERRIDE {
40 str.printf("bitmaprect_%s", fUseIRect ? "i" : "s");
44 virtual SkISize onISize() SK_OVERRIDE {
45 return SkISize::Make(640, 480);
49 // Skip tiled drawing on 64-bit ARM until https://skbug.com/2908 is fixed.
50 virtual uint32_t onGetFlags() const SK_OVERRIDE {
51 return kSkipTiled_Flag;
55 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
56 canvas->drawColor(0xFFCCCCCC);
58 const SkIRect src[] = {
66 paint.setStyle(SkPaint::kStroke_Style);
71 SkRect dstR = { 0, 200, 128, 380 };
73 canvas->translate(16, 40);
74 for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++) {
78 canvas->drawBitmap(bitmap, 0, 0, &paint);
80 canvas->drawBitmapRectToRect(bitmap, &srcR, dstR, &paint);
82 canvas->drawBitmapRect(bitmap, &src[i], dstR, &paint);
85 canvas->drawRect(dstR, paint);
86 canvas->drawRect(srcR, paint);
88 canvas->translate(160, 0);
93 typedef skiagm::GM INHERITED;
96 //////////////////////////////////////////////////////////////////////////////
97 static void make_3x3_bitmap(SkBitmap* bitmap) {
99 static const int gXSize = 3;
100 static const int gYSize = 3;
102 SkColor textureData[gXSize][gYSize] = {
103 { SK_ColorRED, SK_ColorWHITE, SK_ColorBLUE },
104 { SK_ColorGREEN, SK_ColorBLACK, SK_ColorCYAN },
105 { SK_ColorYELLOW, SK_ColorGRAY, SK_ColorMAGENTA }
109 bitmap->allocN32Pixels(gXSize, gYSize);
110 for (int y = 0; y < gYSize; y++) {
111 for (int x = 0; x < gXSize; x++) {
112 *bitmap->getAddr32(x, y) = textureData[x][y];
117 // This GM attempts to make visible any issues drawBitmapRectToRect may have
118 // with partial source rects. In this case the eight pixels on the border
119 // should be half the width/height of the central pixel, i.e.:
124 class DrawBitmapRect3 : public skiagm::GM {
127 this->setBGColor(SK_ColorBLACK);
131 virtual SkString onShortName() SK_OVERRIDE {
133 str.printf("3x3bitmaprect");
137 virtual SkISize onISize() SK_OVERRIDE {
138 return SkISize::Make(640, 480);
141 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
144 make_3x3_bitmap(&bitmap);
146 SkRect srcR = { 0.5f, 0.5f, 2.5f, 2.5f };
147 SkRect dstR = { 100, 100, 300, 200 };
149 canvas->drawBitmapRectToRect(bitmap, &srcR, dstR, NULL);
153 typedef skiagm::GM INHERITED;
156 //////////////////////////////////////////////////////////////////////////////
157 static void make_big_bitmap(SkBitmap* bitmap) {
159 static const int gXSize = 4096;
160 static const int gYSize = 4096;
161 static const int gBorderWidth = 10;
163 bitmap->allocN32Pixels(gXSize, gYSize);
164 for (int y = 0; y < gYSize; ++y) {
165 for (int x = 0; x < gXSize; ++x) {
166 if (x <= gBorderWidth || x >= gXSize-gBorderWidth ||
167 y <= gBorderWidth || y >= gYSize-gBorderWidth) {
168 *bitmap->getAddr32(x, y) = 0x88FFFFFF;
170 *bitmap->getAddr32(x, y) = 0x88FF0000;
176 // This GM attempts to reveal any issues we may have when the GPU has to
177 // break up a large texture in order to draw it. The XOR transfer mode will
178 // create stripes in the image if there is imprecision in the destination
180 class DrawBitmapRect4 : public skiagm::GM {
185 DrawBitmapRect4(bool useIRect) : fUseIRect(useIRect) {
186 this->setBGColor(0x88444444);
190 virtual SkString onShortName() SK_OVERRIDE {
192 str.printf("bigbitmaprect_%s", fUseIRect ? "i" : "s");
196 virtual SkISize onISize() SK_OVERRIDE {
197 return SkISize::Make(640, 480);
200 virtual void onOnceBeforeDraw() SK_OVERRIDE {
201 make_big_bitmap(&fBigBitmap);
204 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
206 SkXfermode* mode = SkXfermode::Create(SkXfermode::kXor_Mode);
210 paint.setXfermode(mode)->unref();
212 SkRect srcR1 = { 0.0f, 0.0f, 4096.0f, 2040.0f };
213 SkRect dstR1 = { 10.1f, 10.1f, 629.9f, 400.9f };
215 SkRect srcR2 = { 4085.0f, 10.0f, 4087.0f, 12.0f };
216 SkRect dstR2 = { 10, 410, 30, 430 };
219 canvas->drawBitmapRectToRect(fBigBitmap, &srcR1, dstR1, &paint);
220 canvas->drawBitmapRectToRect(fBigBitmap, &srcR2, dstR2, &paint);
222 SkIRect iSrcR1, iSrcR2;
224 srcR1.roundOut(&iSrcR1);
225 srcR2.roundOut(&iSrcR2);
227 canvas->drawBitmapRect(fBigBitmap, &iSrcR1, dstR1, &paint);
228 canvas->drawBitmapRect(fBigBitmap, &iSrcR2, dstR2, &paint);
233 typedef skiagm::GM INHERITED;
236 //////////////////////////////////////////////////////////////////////////////
238 static skiagm::GM* MyFactory0(void*) { return new DrawBitmapRect2(false); }
239 static skiagm::GM* MyFactory1(void*) { return new DrawBitmapRect2(true); }
241 static skiagm::GM* MyFactory2(void*) { return new DrawBitmapRect3(); }
243 #ifndef SK_BUILD_FOR_ANDROID
244 static skiagm::GM* MyFactory3(void*) { return new DrawBitmapRect4(false); }
245 static skiagm::GM* MyFactory4(void*) { return new DrawBitmapRect4(true); }
248 static skiagm::GMRegistry reg0(MyFactory0);
249 static skiagm::GMRegistry reg1(MyFactory1);
251 static skiagm::GMRegistry reg2(MyFactory2);
253 #ifndef SK_BUILD_FOR_ANDROID
254 static skiagm::GMRegistry reg3(MyFactory3);
255 static skiagm::GMRegistry reg4(MyFactory4);