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Side by Side Diff: src/gpu/GrPathUtils.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 * Copyright 2011 Google Inc. 2 * Copyright 2011 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #include "GrPathUtils.h" 8 #include "GrPathUtils.h"
9 9
10 #include "GrPoint.h" 10 #include "GrPoint.h"
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27 (i < 2) ? pathBounds.fTop : pathBounds.fBottom); 27 (i < 2) ? pathBounds.fTop : pathBounds.fBottom);
28 mat.postConcat(viewM); 28 mat.postConcat(viewM);
29 stretch = SkMaxScalar(stretch, mat.mapRadius(SK_Scalar1)); 29 stretch = SkMaxScalar(stretch, mat.mapRadius(SK_Scalar1));
30 } 30 }
31 } 31 }
32 srcTol = SkScalarDiv(srcTol, stretch); 32 srcTol = SkScalarDiv(srcTol, stretch);
33 return srcTol; 33 return srcTol;
34 } 34 }
35 35
36 static const int MAX_POINTS_PER_CURVE = 1 << 10; 36 static const int MAX_POINTS_PER_CURVE = 1 << 10;
37 static const SkScalar gMinCurveTol = SkFloatToScalar(0.0001f); 37 static const SkScalar gMinCurveTol = 0.0001f;
38 38
39 uint32_t GrPathUtils::quadraticPointCount(const GrPoint points[], 39 uint32_t GrPathUtils::quadraticPointCount(const GrPoint points[],
40 SkScalar tol) { 40 SkScalar tol) {
41 if (tol < gMinCurveTol) { 41 if (tol < gMinCurveTol) {
42 tol = gMinCurveTol; 42 tol = gMinCurveTol;
43 } 43 }
44 SkASSERT(tol > 0); 44 SkASSERT(tol > 0);
45 45
46 SkScalar d = points[1].distanceToLineSegmentBetween(points[0], points[2]); 46 SkScalar d = points[1].distanceToLineSegmentBetween(points[0], points[2]);
47 if (d <= tol) { 47 if (d <= tol) {
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243 } else { 243 } else {
244 // It's a point. It should cover zero area. Just set the matrix such 244 // It's a point. It should cover zero area. Just set the matrix such
245 // that (u, v) will always be far away from the quad. 245 // that (u, v) will always be far away from the quad.
246 fM[0] = 0; fM[1] = 0; fM[2] = 100.f; 246 fM[0] = 0; fM[1] = 0; fM[2] = 100.f;
247 fM[3] = 0; fM[4] = 0; fM[5] = 100.f; 247 fM[3] = 0; fM[4] = 0; fM[5] = 100.f;
248 } 248 }
249 } else { 249 } else {
250 m.postConcat(UVpts); 250 m.postConcat(UVpts);
251 251
252 // The matrix should not have perspective. 252 // The matrix should not have perspective.
253 SkDEBUGCODE(static const SkScalar gTOL = SkFloatToScalar(1.f / 100.f)); 253 SkDEBUGCODE(static const SkScalar gTOL = 1.f / 100.f);
254 SkASSERT(SkScalarAbs(m.get(SkMatrix::kMPersp0)) < gTOL); 254 SkASSERT(SkScalarAbs(m.get(SkMatrix::kMPersp0)) < gTOL);
255 SkASSERT(SkScalarAbs(m.get(SkMatrix::kMPersp1)) < gTOL); 255 SkASSERT(SkScalarAbs(m.get(SkMatrix::kMPersp1)) < gTOL);
256 256
257 // It may not be normalized to have 1.0 in the bottom right 257 // It may not be normalized to have 1.0 in the bottom right
258 float m33 = m.get(SkMatrix::kMPersp2); 258 float m33 = m.get(SkMatrix::kMPersp2);
259 if (1.f != m33) { 259 if (1.f != m33) {
260 m33 = 1.f / m33; 260 m33 = 1.f / m33;
261 fM[0] = m33 * m.get(SkMatrix::kMScaleX); 261 fM[0] = m33 * m.get(SkMatrix::kMScaleX);
262 fM[1] = m33 * m.get(SkMatrix::kMSkewX); 262 fM[1] = m33 * m.get(SkMatrix::kMSkewX);
263 fM[2] = m33 * m.get(SkMatrix::kMTransX); 263 fM[2] = m33 * m.get(SkMatrix::kMTransX);
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831 set_loop_klm(d, controlK, controlL, controlM); 831 set_loop_klm(d, controlK, controlL, controlM);
832 } else if (kCusp_CubicType == cType) { 832 } else if (kCusp_CubicType == cType) {
833 SkASSERT(0.f == d[0]); 833 SkASSERT(0.f == d[0]);
834 set_cusp_klm(d, controlK, controlL, controlM); 834 set_cusp_klm(d, controlK, controlL, controlM);
835 } else if (kQuadratic_CubicType == cType) { 835 } else if (kQuadratic_CubicType == cType) {
836 set_quadratic_klm(d, controlK, controlL, controlM); 836 set_quadratic_klm(d, controlK, controlL, controlM);
837 } 837 }
838 838
839 calc_cubic_klm(p, controlK, controlL, controlM, klm, &klm[3], &klm[6]); 839 calc_cubic_klm(p, controlK, controlL, controlM, klm, &klm[3], &klm[6]);
840 } 840 }
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