Cross Reference: /external/skia/src/core/SkEdgeClipper.cpp

Lines Matching refs:clip
13 static bool quick_reject(const SkRect& bounds, const SkRect& clip) {
14     return bounds.fTop >= clip.fBottom || bounds.fBottom <= clip.fTop;
75 // Modify pts[] in place so that it is clipped in Y to the clip rect
76 static void chop_quad_in_Y(SkPoint pts[3], const SkRect& clip) {
81     if (pts[0].fY < clip.fTop) {
82         if (chopMonoQuadAtY(pts, clip.fTop, &t)) {
86             tmp[2].fY = clip.fTop;
87             clamp_ge(tmp[3].fY, clip.fTop);
95                 if (pts[i].fY < clip.fTop) {
96                     pts[i].fY = clip.fTop;
103     if (pts[2].fY > clip.fBottom) {
104         if (chopMonoQuadAtY(pts, clip.fBottom, &t)) {
107             clamp_le(tmp[1].fY, clip.fBottom);
108             tmp[2].fY = clip.fBottom;
116                 if (pts[i].fY > clip.fBottom) {
117                     pts[i].fY = clip.fBottom;
125 void SkEdgeClipper::clipMonoQuad(const SkPoint srcPts[3], const SkRect& clip) {
130     if (pts[2].fY <= clip.fTop || pts[0].fY >= clip.fBottom) {
134     // Now chop so that pts is contained within clip in Y
135     chop_quad_in_Y(pts, clip);
146     if (pts[2].fX <= clip.fLeft) {  // wholly to the left
147         this->appendVLine(clip.fLeft, pts[0].fY, pts[2].fY, reverse);
150     if (pts[0].fX >= clip.fRight) {  // wholly to the right
152             this->appendVLine(clip.fRight, pts[0].fY, pts[2].fY, reverse);
161     if (pts[0].fX < clip.fLeft) {
162         if (chopMonoQuadAtX(pts, clip.fLeft, &t)) {
164             this->appendVLine(clip.fLeft, tmp[0].fY, tmp[2].fY, reverse);
166             tmp[2].fX = clip.fLeft;
167             clamp_ge(tmp[3].fX, clip.fLeft);
174             this->appendVLine(clip.fLeft, pts[0].fY, pts[2].fY, reverse);
180     if (pts[2].fX > clip.fRight) {
181         if (chopMonoQuadAtX(pts, clip.fRight, &t)) {
184             clamp_le(tmp[1].fX, clip.fRight);
185             tmp[2].fX = clip.fRight;
188             this->appendVLine(clip.fRight, tmp[2].fY, tmp[4].fY, reverse);
192             this->appendVLine(clip.fRight, pts[0].fY, pts[2].fY, reverse);
194     } else {    // wholly inside the clip
199 bool SkEdgeClipper::clipQuad(const SkPoint srcPts[3], const SkRect& clip) {
206     if (!quick_reject(bounds, clip)) {
213                 this->clipMonoQuad(&monoX[x * 2], clip);
228 // Modify pts[] in place so that it is clipped in Y to the clip rect
229 static void chop_cubic_in_Y(SkPoint pts[4], const SkRect& clip) {
232     if (pts[0].fY < clip.fTop) {
234         if (SkChopMonoCubicAtY(pts, clip.fTop, tmp)) {
235             // tmp[3, 4].fY should all be to the below clip.fTop.
238             tmp[3].fY = clip.fTop;
239             clamp_ge(tmp[4].fY, clip.fTop);
248                 clamp_ge(pts[i].fY, clip.fTop);
254     if (pts[3].fY > clip.fBottom) {
256         if (SkChopMonoCubicAtY(pts, clip.fBottom, tmp)) {
257             tmp[3].fY = clip.fBottom;
258             clamp_le(tmp[2].fY, clip.fBottom);
267                 clamp_le(pts[i].fY, clip.fBottom);
274 void SkEdgeClipper::clipMonoCubic(const SkPoint src[4], const SkRect& clip) {
279     if (pts[3].fY <= clip.fTop || pts[0].fY >= clip.fBottom) {
283     // Now chop so that pts is contained within clip in Y
284     chop_cubic_in_Y(pts, clip);
294     if (pts[3].fX <= clip.fLeft) {  // wholly to the left
295         this->appendVLine(clip.fLeft, pts[0].fY, pts[3].fY, reverse);
298     if (pts[0].fX >= clip.fRight) {  // wholly to the right
300             this->appendVLine(clip.fRight, pts[0].fY, pts[3].fY, reverse);
306     if (pts[0].fX < clip.fLeft) {
308         if (SkChopMonoCubicAtX(pts, clip.fLeft, tmp)) {
309             this->appendVLine(clip.fLeft, tmp[0].fY, tmp[3].fY, reverse);
311             // tmp[3, 4].fX should all be to the right of clip.fLeft.
314             tmp[3].fX = clip.fLeft;
315             clamp_ge(tmp[4].fX, clip.fLeft);
323             this->appendVLine(clip.fLeft, pts[0].fY, pts[3].fY, reverse);
329     if (pts[3].fX > clip.fRight) {
331         if (SkChopMonoCubicAtX(pts, clip.fRight, tmp)) {
332             tmp[3].fX = clip.fRight;
333             clamp_le(tmp[2].fX, clip.fRight);
336             this->appendVLine(clip.fRight, tmp[3].fY, tmp[6].fY, reverse);
340             this->appendVLine(clip.fRight, pts[0].fY, pts[3].fY, reverse);
342     } else {    // wholly inside the clip
347 bool SkEdgeClipper::clipCubic(const SkPoint srcPts[4], const SkRect& clip) {
354     if (!quick_reject(bounds, clip)) {
361                 this->clipMonoCubic(&monoX[x * 3], clip);