reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1 | #include "SampleCode.h" |
| 2 | #include "SkView.h" |
| 3 | #include "SkCanvas.h" |
| 4 | #include "SkGradientShader.h" |
| 5 | #include "SkPath.h" |
| 6 | #include "SkRegion.h" |
| 7 | #include "SkShader.h" |
| 8 | #include "SkUtils.h" |
| 9 | #include "SkImageDecoder.h" |
| 10 | |
| 11 | #ifdef SK_DEBUG |
| 12 | static void make_rgn(SkRegion* rgn, int left, int top, int right, int bottom, |
| 13 | size_t count, int32_t runs[]) { |
| 14 | SkIRect r; |
| 15 | r.set(left, top, right, bottom); |
| 16 | |
| 17 | rgn->debugSetRuns(runs, count); |
| 18 | SkASSERT(rgn->getBounds() == r); |
| 19 | } |
| 20 | |
| 21 | static void test_union_bug_1505668(SkRegion* ra, SkRegion* rb, SkRegion* rc) { |
| 22 | static int32_t dataA[] = { |
| 23 | 0x00000001, 0x000001dd, |
| 24 | 0x00000001, 0x0000000c, 0x0000000d, 0x00000025, |
| 25 | 0x7fffffff, 0x000001de, 0x00000001, 0x00000025, |
| 26 | 0x7fffffff, 0x000004b3, 0x00000001, 0x00000026, |
| 27 | 0x7fffffff, 0x000004b4, 0x0000000c, 0x00000026, |
| 28 | 0x7fffffff, 0x00000579, 0x00000000, 0x0000013a, |
| 29 | 0x7fffffff, 0x000005d8, 0x00000000, 0x0000013b, |
| 30 | 0x7fffffff, 0x7fffffff |
| 31 | }; |
| 32 | make_rgn(ra, 0, 1, 315, 1496, SK_ARRAY_COUNT(dataA), dataA); |
| 33 | |
| 34 | static int32_t dataB[] = { |
| 35 | 0x000000b6, 0x000000c4, |
| 36 | 0x000000a1, 0x000000f0, 0x7fffffff, 0x000000d6, |
| 37 | 0x7fffffff, 0x000000e4, 0x00000070, 0x00000079, |
| 38 | 0x000000a1, 0x000000b0, 0x7fffffff, 0x000000e6, |
| 39 | 0x7fffffff, 0x000000f4, 0x00000070, 0x00000079, |
| 40 | 0x000000a1, 0x000000b0, 0x7fffffff, 0x000000f6, |
| 41 | 0x7fffffff, 0x00000104, 0x000000a1, 0x000000b0, |
| 42 | 0x7fffffff, 0x7fffffff |
| 43 | }; |
| 44 | make_rgn(rb, 112, 182, 240, 260, SK_ARRAY_COUNT(dataB), dataB); |
| 45 | |
| 46 | rc->op(*ra, *rb, SkRegion::kUnion_Op); |
| 47 | } |
| 48 | #endif |
| 49 | |
reed@android.com | f76bacf | 2009-05-13 14:00:33 +0000 | [diff] [blame^] | 50 | static void scale_rect(SkIRect* dst, const SkIRect& src, float scale) { |
| 51 | dst->fLeft = (int)::roundf(src.fLeft * scale); |
| 52 | dst->fTop = (int)::roundf(src.fTop * scale); |
| 53 | dst->fRight = (int)::roundf(src.fRight * scale); |
| 54 | dst->fBottom = (int)::roundf(src.fBottom * scale); |
| 55 | } |
| 56 | |
| 57 | static void scale_rgn(SkRegion* dst, const SkRegion& src, float scale) { |
| 58 | SkRegion tmp; |
| 59 | SkRegion::Iterator iter(src); |
| 60 | |
| 61 | for (; !iter.done(); iter.next()) { |
| 62 | SkIRect r; |
| 63 | scale_rect(&r, iter.rect(), scale); |
| 64 | tmp.op(r, SkRegion::kUnion_Op); |
| 65 | } |
| 66 | dst->swap(tmp); |
| 67 | } |
| 68 | |
| 69 | static void paint_rgn(SkCanvas* canvas, const SkRegion& rgn, |
| 70 | const SkPaint& paint) { |
| 71 | SkRegion scaled; |
| 72 | scale_rgn(&scaled, rgn, 0.5f); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | |
reed@android.com | f76bacf | 2009-05-13 14:00:33 +0000 | [diff] [blame^] | 74 | SkRegion::Iterator iter(rgn); |
| 75 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 76 | for (; !iter.done(); iter.next()) |
| 77 | { |
| 78 | SkRect r; |
| 79 | r.set(iter.rect()); |
| 80 | canvas->drawRect(r, paint); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | class RegionView : public SkView { |
| 85 | public: |
| 86 | RegionView() |
| 87 | { |
| 88 | fBase.set(100, 100, 150, 150); |
| 89 | fRect = fBase; |
| 90 | fRect.inset(5, 5); |
| 91 | fRect.offset(25, 25); |
| 92 | } |
| 93 | |
| 94 | void build_rgn(SkRegion* rgn, SkRegion::Op op) |
| 95 | { |
| 96 | rgn->setRect(fBase); |
| 97 | SkIRect r = fBase; |
| 98 | r.offset(75, 20); |
| 99 | rgn->op(r, SkRegion::kUnion_Op); |
| 100 | rgn->op(fRect, op); |
| 101 | } |
| 102 | |
| 103 | |
| 104 | protected: |
| 105 | // overrides from SkEventSink |
| 106 | virtual bool onQuery(SkEvent* evt) |
| 107 | { |
| 108 | if (SampleCode::TitleQ(*evt)) |
| 109 | { |
| 110 | SampleCode::TitleR(evt, "Regions"); |
| 111 | return true; |
| 112 | } |
| 113 | return this->INHERITED::onQuery(evt); |
| 114 | } |
| 115 | |
| 116 | void drawOrig(SkCanvas* canvas, bool bg) |
| 117 | { |
| 118 | SkRect r; |
| 119 | SkPaint paint; |
| 120 | |
| 121 | paint.setStyle(SkPaint::kStroke_Style); |
| 122 | if (bg) |
| 123 | paint.setColor(0xFFBBBBBB); |
| 124 | |
| 125 | r.set(fBase); |
| 126 | canvas->drawRect(r, paint); |
| 127 | r.set(fRect); |
| 128 | canvas->drawRect(r, paint); |
| 129 | } |
| 130 | |
| 131 | void drawRgnOped(SkCanvas* canvas, SkRegion::Op op, SkColor color) |
| 132 | { |
| 133 | SkRegion rgn; |
| 134 | |
| 135 | this->build_rgn(&rgn, op); |
| 136 | |
| 137 | { |
| 138 | SkRegion tmp, tmp2(rgn); |
| 139 | |
| 140 | tmp = tmp2; |
| 141 | tmp.translate(5, -3); |
| 142 | |
| 143 | { |
| 144 | char buffer[1000]; |
| 145 | size_t size = tmp.flatten(NULL); |
| 146 | SkASSERT(size <= sizeof(buffer)); |
| 147 | size_t size2 = tmp.flatten(buffer); |
| 148 | SkASSERT(size == size2); |
| 149 | |
| 150 | SkRegion tmp3; |
| 151 | size2 = tmp3.unflatten(buffer); |
| 152 | SkASSERT(size == size2); |
| 153 | |
| 154 | SkASSERT(tmp3 == tmp); |
| 155 | } |
| 156 | |
| 157 | rgn.translate(20, 30, &tmp); |
| 158 | SkASSERT(rgn.isEmpty() || tmp != rgn); |
| 159 | tmp.translate(-20, -30); |
| 160 | SkASSERT(tmp == rgn); |
| 161 | } |
| 162 | |
| 163 | this->drawOrig(canvas, true); |
| 164 | |
| 165 | SkPaint paint; |
| 166 | paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24)); |
| 167 | paint_rgn(canvas, rgn, paint); |
| 168 | |
| 169 | paint.setStyle(SkPaint::kStroke_Style); |
| 170 | paint.setColor(color); |
| 171 | paint_rgn(canvas, rgn, paint); |
| 172 | } |
| 173 | |
| 174 | void drawPathOped(SkCanvas* canvas, SkRegion::Op op, SkColor color) |
| 175 | { |
| 176 | SkRegion rgn; |
| 177 | SkPath path; |
| 178 | |
| 179 | this->build_rgn(&rgn, op); |
| 180 | rgn.getBoundaryPath(&path); |
| 181 | |
| 182 | this->drawOrig(canvas, true); |
| 183 | |
| 184 | SkPaint paint; |
| 185 | |
| 186 | paint.setStyle(SkPaint::kFill_Style); |
| 187 | paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24)); |
| 188 | canvas->drawPath(path, paint); |
| 189 | paint.setColor(color); |
| 190 | paint.setStyle(SkPaint::kStroke_Style); |
| 191 | canvas->drawPath(path, paint); |
| 192 | } |
| 193 | |
| 194 | void drawBG(SkCanvas* canvas) |
| 195 | { |
| 196 | canvas->drawColor(0xFFDDDDDD); |
| 197 | return; |
| 198 | |
| 199 | #if 0 |
| 200 | SkColorTable ct; |
| 201 | SkPMColor colors[] = { SK_ColorRED, SK_ColorBLUE }; |
| 202 | ct.setColors(colors, 2); |
| 203 | ct.setFlags(ct.getFlags() | SkColorTable::kColorsAreOpaque_Flag); |
| 204 | |
| 205 | SkBitmap bm; |
| 206 | bm.setConfig(SkBitmap::kIndex8_Config, 20, 20, 21); |
| 207 | bm.setColorTable(&ct); |
| 208 | bm.allocPixels(); |
| 209 | sk_memset16((uint16_t*)bm.getAddr8(0, 0), 0x0001, bm.rowBytes() * bm.height() / 2); |
| 210 | #endif |
| 211 | #if 0 |
| 212 | SkBitmap bm; |
| 213 | bm.setConfig(SkBitmap::kRGB_565_Config, 20, 20, 42); |
| 214 | bm.allocPixels(); |
| 215 | sk_memset32((uint32_t*)bm.getAddr16(0, 0), 0x0000FFFF, bm.rowBytes() * bm.height() / 4); |
| 216 | #endif |
| 217 | #if 1 |
| 218 | SkBitmap bm; |
| 219 | bm.setConfig(SkBitmap::kARGB_8888_Config, 20, 20); |
| 220 | bm.allocPixels(); |
| 221 | sk_memset32((uint32_t*)bm.getAddr32(0, 0), 0xFFDDDDDD, bm.rowBytes() * bm.height() / 4); |
| 222 | #endif |
| 223 | |
| 224 | SkPaint paint; |
| 225 | |
| 226 | // SkShader* shader = SkShader::CreateBitmapShader(bm, false, SkPaint::kBilinear_FilterType, SkShader::kRepeat_TileMode); |
| 227 | SkPoint pts[] = { 0, 0, SkIntToScalar(100), SkIntToScalar(0) }; |
| 228 | SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE }; |
| 229 | SkShader* shader = SkGradientShader::CreateLinear(pts, colors, nil, 2, SkShader::kMirror_TileMode); |
| 230 | paint.setShader(shader)->unref(); |
| 231 | |
| 232 | canvas->drawPaint(paint); |
| 233 | } |
| 234 | |
| 235 | virtual void onDraw(SkCanvas* canvas) |
| 236 | { |
| 237 | if (true) { |
| 238 | SkRect r = { 0, 0, 1 << 30, 1 << 30 }; |
| 239 | bool open = canvas->clipRect(r); |
| 240 | SkDebugf("---- giant clip is %d\n", open); |
| 241 | } |
| 242 | this->drawBG(canvas); |
| 243 | |
reed@android.com | 3469c76 | 2009-02-24 19:03:20 +0000 | [diff] [blame] | 244 | if (false) { |
| 245 | SkPaint paint; |
| 246 | paint.setAntiAlias(true); |
| 247 | SkBitmap bm; |
| 248 | bm.setConfig(SkBitmap::kA8_Config, 100, 100); |
| 249 | bm.allocPixels(); |
| 250 | bm.eraseColor(0); |
| 251 | SkCanvas c(bm); |
| 252 | c.drawCircle(50, 50, 50, paint); |
| 253 | |
| 254 | paint.setColor(SK_ColorBLUE); |
| 255 | canvas->drawBitmap(bm, 0, 0, &paint); |
| 256 | canvas->scale(SK_Scalar1/2, SK_Scalar1/2); |
| 257 | paint.setColor(SK_ColorRED); |
| 258 | canvas->drawBitmap(bm, 0, 0, &paint); |
| 259 | return; |
| 260 | } |
| 261 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 262 | #ifdef SK_DEBUG |
| 263 | if (true) { |
| 264 | SkRegion a, b, c; |
| 265 | test_union_bug_1505668(&a, &b, &c); |
| 266 | |
| 267 | if (false) { // draw the result of the test |
| 268 | SkPaint paint; |
| 269 | |
| 270 | canvas->translate(SkIntToScalar(10), SkIntToScalar(10)); |
| 271 | paint.setColor(SK_ColorRED); |
| 272 | paint_rgn(canvas, a, paint); |
| 273 | paint.setColor(0x800000FF); |
| 274 | paint_rgn(canvas, b, paint); |
| 275 | paint.setColor(SK_ColorBLACK); |
| 276 | paint.setStyle(SkPaint::kStroke_Style); |
| 277 | // paint_rgn(canvas, c, paint); |
| 278 | return; |
| 279 | } |
| 280 | } |
| 281 | #endif |
| 282 | |
| 283 | static const struct { |
| 284 | SkColor fColor; |
| 285 | const char* fName; |
| 286 | SkRegion::Op fOp; |
| 287 | } gOps[] = { |
| 288 | { SK_ColorBLACK, "Difference", SkRegion::kDifference_Op }, |
| 289 | { SK_ColorRED, "Intersect", SkRegion::kIntersect_Op }, |
| 290 | { 0xFF008800, "Union", SkRegion::kUnion_Op }, |
| 291 | { SK_ColorBLUE, "XOR", SkRegion::kXOR_Op } |
| 292 | }; |
| 293 | |
| 294 | SkPaint textPaint; |
| 295 | textPaint.setAntiAlias(true); |
| 296 | textPaint.setTextSize(SK_Scalar1*24); |
| 297 | |
| 298 | this->drawOrig(canvas, false); |
| 299 | canvas->save(); |
| 300 | canvas->translate(SkIntToScalar(200), 0); |
| 301 | this->drawRgnOped(canvas, SkRegion::kUnion_Op, SK_ColorBLACK); |
| 302 | canvas->restore(); |
| 303 | |
| 304 | canvas->translate(0, SkIntToScalar(200)); |
| 305 | |
| 306 | for (int op = 0; op < SK_ARRAY_COUNT(gOps); op++) |
| 307 | { |
| 308 | canvas->drawText(gOps[op].fName, strlen(gOps[op].fName), SkIntToScalar(75), SkIntToScalar(50), textPaint); |
| 309 | |
| 310 | this->drawRgnOped(canvas, gOps[op].fOp, gOps[op].fColor); |
| 311 | |
| 312 | if (true) |
| 313 | { |
| 314 | canvas->save(); |
| 315 | canvas->translate(0, SkIntToScalar(200)); |
| 316 | this->drawPathOped(canvas, gOps[op].fOp, gOps[op].fColor); |
| 317 | canvas->restore(); |
| 318 | } |
| 319 | |
| 320 | canvas->translate(SkIntToScalar(200), 0); |
| 321 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) |
| 325 | { |
| 326 | return fRect.contains(SkScalarRound(x), SkScalarRound(y)) ? new Click(this) : nil; |
| 327 | } |
| 328 | |
| 329 | virtual bool onClick(Click* click) |
| 330 | { |
| 331 | fRect.offset(click->fICurr.fX - click->fIPrev.fX, |
| 332 | click->fICurr.fY - click->fIPrev.fY); |
| 333 | this->inval(nil); |
| 334 | return true; |
| 335 | } |
| 336 | |
| 337 | private: |
| 338 | SkIRect fBase, fRect; |
| 339 | |
| 340 | typedef SkView INHERITED; |
| 341 | }; |
| 342 | |
| 343 | ////////////////////////////////////////////////////////////////////////////// |
| 344 | |
| 345 | static SkView* MyFactory() { return new RegionView; } |
| 346 | static SkViewRegister reg(MyFactory); |
| 347 | |