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

Issue 85463005: remove SkFloatToScalar macro (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: add flag to expose SkFloatToScalar to chromium Created 7 years ago
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1 1
2 /* 2 /*
3 * Copyright 2011 Google Inc. 3 * Copyright 2011 Google Inc.
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 #include "SkLineClipper.h" 8 #include "SkLineClipper.h"
9 9
10 template <typename T> T pin_unsorted(T value, T limit0, T limit1) { 10 template <typename T> T pin_unsorted(T value, T limit0, T limit1) {
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169 169
170 #ifdef SK_SCALAR_IS_FLOAT 170 #ifdef SK_SCALAR_IS_FLOAT
171 #ifdef SK_DEBUG 171 #ifdef SK_DEBUG
172 // This is an example of why we need to pin the result computed in 172 // This is an example of why we need to pin the result computed in
173 // sect_with_horizontal. If we didn't explicitly pin, is_between_unsorted would 173 // sect_with_horizontal. If we didn't explicitly pin, is_between_unsorted would
174 // fail. 174 // fail.
175 // 175 //
176 static void sect_with_horizontal_test_for_pin_results() { 176 static void sect_with_horizontal_test_for_pin_results() {
177 const SkPoint pts[] = { 177 const SkPoint pts[] = {
178 { -540000, -720000 }, 178 { -540000, -720000 },
179 { SkFloatToScalar(-9.10000017e-05f), SkFloatToScalar(9.99999996e-13f) } 179 { -9.10000017e-05f, 9.99999996e-13f }
180 }; 180 };
181 float x = sect_with_horizontal(pts, 0); 181 float x = sect_with_horizontal(pts, 0);
182 SkASSERT(is_between_unsorted(x, pts[0].fX, pts[1].fX)); 182 SkASSERT(is_between_unsorted(x, pts[0].fX, pts[1].fX));
183 } 183 }
184 #endif 184 #endif
185 #endif 185 #endif
186 186
187 int SkLineClipper::ClipLine(const SkPoint pts[], const SkRect& clip, 187 int SkLineClipper::ClipLine(const SkPoint pts[], const SkRect& clip,
188 SkPoint lines[]) { 188 SkPoint lines[]) {
189 #ifdef SK_SCALAR_IS_FLOAT 189 #ifdef SK_SCALAR_IS_FLOAT
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288 if (reverse) { 288 if (reverse) {
289 // copy the pts in reverse order to maintain winding order 289 // copy the pts in reverse order to maintain winding order
290 for (int i = 0; i <= lineCount; i++) { 290 for (int i = 0; i <= lineCount; i++) {
291 lines[lineCount - i] = result[i]; 291 lines[lineCount - i] = result[i];
292 } 292 }
293 } else { 293 } else {
294 memcpy(lines, result, (lineCount + 1) * sizeof(SkPoint)); 294 memcpy(lines, result, (lineCount + 1) * sizeof(SkPoint));
295 } 295 }
296 return lineCount; 296 return lineCount;
297 } 297 }
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