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Side by Side Diff: src/core/SkScan_Antihair.cpp

Issue 806653007: Fix up all the easy virtual ... SK_OVERRIDE cases. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: rebase Created 5 years, 11 months ago
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1 1
2 /* 2 /*
3 * Copyright 2011 The Android Open Source Project 3 * Copyright 2011 The Android Open Source Project
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 9
10 #include "SkScan.h" 10 #include "SkScan.h"
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99 99
100 virtual SkFixed drawCap(int x, SkFixed fy, SkFixed slope, int mod64) = 0; 100 virtual SkFixed drawCap(int x, SkFixed fy, SkFixed slope, int mod64) = 0;
101 virtual SkFixed drawLine(int x, int stopx, SkFixed fy, SkFixed slope) = 0; 101 virtual SkFixed drawLine(int x, int stopx, SkFixed fy, SkFixed slope) = 0;
102 102
103 private: 103 private:
104 SkBlitter* fBlitter; 104 SkBlitter* fBlitter;
105 }; 105 };
106 106
107 class HLine_SkAntiHairBlitter : public SkAntiHairBlitter { 107 class HLine_SkAntiHairBlitter : public SkAntiHairBlitter {
108 public: 108 public:
109 virtual SkFixed drawCap(int x, SkFixed fy, SkFixed slope, int mod64) SK_OVER RIDE { 109 SkFixed drawCap(int x, SkFixed fy, SkFixed slope, int mod64) SK_OVERRIDE {
110 fy += SK_Fixed1/2; 110 fy += SK_Fixed1/2;
111 111
112 int y = fy >> 16; 112 int y = fy >> 16;
113 uint8_t a = (uint8_t)(fy >> 8); 113 uint8_t a = (uint8_t)(fy >> 8);
114 114
115 // lower line 115 // lower line
116 unsigned ma = SmallDot6Scale(a, mod64); 116 unsigned ma = SmallDot6Scale(a, mod64);
117 if (ma) { 117 if (ma) {
118 call_hline_blitter(this->getBlitter(), x, y, 1, ma); 118 call_hline_blitter(this->getBlitter(), x, y, 1, ma);
119 } 119 }
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146 if (a) { 146 if (a) {
147 call_hline_blitter(this->getBlitter(), x, y - 1, count, a); 147 call_hline_blitter(this->getBlitter(), x, y - 1, count, a);
148 } 148 }
149 149
150 return fy - SK_Fixed1/2; 150 return fy - SK_Fixed1/2;
151 } 151 }
152 }; 152 };
153 153
154 class Horish_SkAntiHairBlitter : public SkAntiHairBlitter { 154 class Horish_SkAntiHairBlitter : public SkAntiHairBlitter {
155 public: 155 public:
156 virtual SkFixed drawCap(int x, SkFixed fy, SkFixed dy, int mod64) SK_OVERRID E { 156 SkFixed drawCap(int x, SkFixed fy, SkFixed dy, int mod64) SK_OVERRIDE {
157 int16_t runs[2]; 157 int16_t runs[2];
158 uint8_t aa[1]; 158 uint8_t aa[1];
159 159
160 runs[0] = 1; 160 runs[0] = 1;
161 runs[1] = 0; 161 runs[1] = 0;
162 162
163 fy += SK_Fixed1/2; 163 fy += SK_Fixed1/2;
164 SkBlitter* blitter = this->getBlitter(); 164 SkBlitter* blitter = this->getBlitter();
165 165
166 int lower_y = fy >> 16; 166 int lower_y = fy >> 16;
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179 blitter->blitAntiH(x, lower_y - 1, aa, runs); 179 blitter->blitAntiH(x, lower_y - 1, aa, runs);
180 // the clipping blitters might edit runs, but should not affect us 180 // the clipping blitters might edit runs, but should not affect us
181 SkASSERT(runs[0] == 1); 181 SkASSERT(runs[0] == 1);
182 SkASSERT(runs[1] == 0); 182 SkASSERT(runs[1] == 0);
183 } 183 }
184 fy += dy; 184 fy += dy;
185 185
186 return fy - SK_Fixed1/2; 186 return fy - SK_Fixed1/2;
187 } 187 }
188 188
189 virtual SkFixed drawLine(int x, int stopx, SkFixed fy, SkFixed dy) SK_OVERRI DE { 189 SkFixed drawLine(int x, int stopx, SkFixed fy, SkFixed dy) SK_OVERRIDE {
190 SkASSERT(x < stopx); 190 SkASSERT(x < stopx);
191 191
192 int16_t runs[2]; 192 int16_t runs[2];
193 uint8_t aa[1]; 193 uint8_t aa[1];
194 194
195 runs[0] = 1; 195 runs[0] = 1;
196 runs[1] = 0; 196 runs[1] = 0;
197 197
198 fy += SK_Fixed1/2; 198 fy += SK_Fixed1/2;
199 SkBlitter* blitter = this->getBlitter(); 199 SkBlitter* blitter = this->getBlitter();
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217 } 217 }
218 fy += dy; 218 fy += dy;
219 } while (++x < stopx); 219 } while (++x < stopx);
220 220
221 return fy - SK_Fixed1/2; 221 return fy - SK_Fixed1/2;
222 } 222 }
223 }; 223 };
224 224
225 class VLine_SkAntiHairBlitter : public SkAntiHairBlitter { 225 class VLine_SkAntiHairBlitter : public SkAntiHairBlitter {
226 public: 226 public:
227 virtual SkFixed drawCap(int y, SkFixed fx, SkFixed dx, int mod64) SK_OVERRID E { 227 SkFixed drawCap(int y, SkFixed fx, SkFixed dx, int mod64) SK_OVERRIDE {
228 SkASSERT(0 == dx); 228 SkASSERT(0 == dx);
229 fx += SK_Fixed1/2; 229 fx += SK_Fixed1/2;
230 230
231 int x = fx >> 16; 231 int x = fx >> 16;
232 int a = (uint8_t)(fx >> 8); 232 int a = (uint8_t)(fx >> 8);
233 233
234 unsigned ma = SmallDot6Scale(a, mod64); 234 unsigned ma = SmallDot6Scale(a, mod64);
235 if (ma) { 235 if (ma) {
236 this->getBlitter()->blitV(x, y, 1, ma); 236 this->getBlitter()->blitV(x, y, 1, ma);
237 } 237 }
238 ma = SmallDot6Scale(255 - a, mod64); 238 ma = SmallDot6Scale(255 - a, mod64);
239 if (ma) { 239 if (ma) {
240 this->getBlitter()->blitV(x - 1, y, 1, ma); 240 this->getBlitter()->blitV(x - 1, y, 1, ma);
241 } 241 }
242 242
243 return fx - SK_Fixed1/2; 243 return fx - SK_Fixed1/2;
244 } 244 }
245 245
246 virtual SkFixed drawLine(int y, int stopy, SkFixed fx, SkFixed dx) SK_OVERRI DE { 246 SkFixed drawLine(int y, int stopy, SkFixed fx, SkFixed dx) SK_OVERRIDE {
247 SkASSERT(y < stopy); 247 SkASSERT(y < stopy);
248 SkASSERT(0 == dx); 248 SkASSERT(0 == dx);
249 fx += SK_Fixed1/2; 249 fx += SK_Fixed1/2;
250 250
251 int x = fx >> 16; 251 int x = fx >> 16;
252 int a = (uint8_t)(fx >> 8); 252 int a = (uint8_t)(fx >> 8);
253 253
254 if (a) { 254 if (a) {
255 this->getBlitter()->blitV(x, y, stopy - y, a); 255 this->getBlitter()->blitV(x, y, stopy - y, a);
256 } 256 }
257 a = 255 - a; 257 a = 255 - a;
258 if (a) { 258 if (a) {
259 this->getBlitter()->blitV(x - 1, y, stopy - y, a); 259 this->getBlitter()->blitV(x - 1, y, stopy - y, a);
260 } 260 }
261 261
262 return fx - SK_Fixed1/2; 262 return fx - SK_Fixed1/2;
263 } 263 }
264 }; 264 };
265 265
266 class Vertish_SkAntiHairBlitter : public SkAntiHairBlitter { 266 class Vertish_SkAntiHairBlitter : public SkAntiHairBlitter {
267 public: 267 public:
268 virtual SkFixed drawCap(int y, SkFixed fx, SkFixed dx, int mod64) SK_OVERRID E { 268 SkFixed drawCap(int y, SkFixed fx, SkFixed dx, int mod64) SK_OVERRIDE {
269 int16_t runs[3]; 269 int16_t runs[3];
270 uint8_t aa[2]; 270 uint8_t aa[2];
271 271
272 runs[0] = 1; 272 runs[0] = 1;
273 runs[2] = 0; 273 runs[2] = 0;
274 274
275 fx += SK_Fixed1/2; 275 fx += SK_Fixed1/2;
276 int x = fx >> 16; 276 int x = fx >> 16;
277 uint8_t a = (uint8_t)(fx >> 8); 277 uint8_t a = (uint8_t)(fx >> 8);
278 278
279 aa[0] = SmallDot6Scale(255 - a, mod64); 279 aa[0] = SmallDot6Scale(255 - a, mod64);
280 aa[1] = SmallDot6Scale(a, mod64); 280 aa[1] = SmallDot6Scale(a, mod64);
281 // the clippng blitters might overwrite this guy, so we have to reset it each time 281 // the clippng blitters might overwrite this guy, so we have to reset it each time
282 runs[1] = 1; 282 runs[1] = 1;
283 this->getBlitter()->blitAntiH(x - 1, y, aa, runs); 283 this->getBlitter()->blitAntiH(x - 1, y, aa, runs);
284 // the clipping blitters might edit runs, but should not affect us 284 // the clipping blitters might edit runs, but should not affect us
285 SkASSERT(runs[0] == 1); 285 SkASSERT(runs[0] == 1);
286 SkASSERT(runs[2] == 0); 286 SkASSERT(runs[2] == 0);
287 fx += dx; 287 fx += dx;
288 288
289 return fx - SK_Fixed1/2; 289 return fx - SK_Fixed1/2;
290 } 290 }
291 291
292 virtual SkFixed drawLine(int y, int stopy, SkFixed fx, SkFixed dx) SK_OVERRI DE { 292 SkFixed drawLine(int y, int stopy, SkFixed fx, SkFixed dx) SK_OVERRIDE {
293 SkASSERT(y < stopy); 293 SkASSERT(y < stopy);
294 int16_t runs[3]; 294 int16_t runs[3];
295 uint8_t aa[2]; 295 uint8_t aa[2];
296 296
297 runs[0] = 1; 297 runs[0] = 1;
298 runs[2] = 0; 298 runs[2] = 0;
299 299
300 fx += SK_Fixed1/2; 300 fx += SK_Fixed1/2;
301 do { 301 do {
302 int x = fx >> 16; 302 int x = fx >> 16;
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1065 1065
1066 void SkScan::AntiFrameRect(const SkRect& r, const SkPoint& strokeSize, 1066 void SkScan::AntiFrameRect(const SkRect& r, const SkPoint& strokeSize,
1067 const SkRasterClip& clip, SkBlitter* blitter) { 1067 const SkRasterClip& clip, SkBlitter* blitter) {
1068 if (clip.isBW()) { 1068 if (clip.isBW()) {
1069 AntiFrameRect(r, strokeSize, &clip.bwRgn(), blitter); 1069 AntiFrameRect(r, strokeSize, &clip.bwRgn(), blitter);
1070 } else { 1070 } else {
1071 SkAAClipBlitterWrapper wrap(clip, blitter); 1071 SkAAClipBlitterWrapper wrap(clip, blitter);
1072 AntiFrameRect(r, strokeSize, &wrap.getRgn(), wrap.getBlitter()); 1072 AntiFrameRect(r, strokeSize, &wrap.getRgn(), wrap.getBlitter());
1073 } 1073 }
1074 } 1074 }
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