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
151         this->appendVLine(clip.fRight, pts[0].fY, pts[2].fY, reverse);
159     if (pts[0].fX < clip.fLeft) {
160         if (chopMonoQuadAtX(pts, clip.fLeft, &t)) {
162             this->appendVLine(clip.fLeft, tmp[0].fY, tmp[2].fY, reverse);
164             tmp[2].fX = clip.fLeft;
165             clamp_ge(tmp[3].fX, clip.fLeft);
172             this->appendVLine(clip.fLeft, pts[0].fY, pts[2].fY, reverse);
178     if (pts[2].fX > clip.fRight) {
179         if (chopMonoQuadAtX(pts, clip.fRight, &t)) {
182             clamp_le(tmp[1].fX, clip.fRight);
183             tmp[2].fX = clip.fRight;
186             this->appendVLine(clip.fRight, tmp[2].fY, tmp[4].fY, reverse);
190             this->appendVLine(clip.fRight, pts[0].fY, pts[2].fY, reverse);
192     } else {    // wholly inside the clip
197 bool SkEdgeClipper::clipQuad(const SkPoint srcPts[3], const SkRect& clip) {
204     if (!quick_reject(bounds, clip)) {
211                 this->clipMonoQuad(&monoX[x * 2], clip);
276 // Modify pts[] in place so that it is clipped in Y to the clip rect
277 static void chop_cubic_in_Y(SkPoint pts[4], const SkRect& clip) {
280     if (pts[0].fY < clip.fTop) {
282         if (chopMonoCubicAtY(pts, clip.fTop, &t)) {
286             // tmp[3, 4, 5].fY should all be to the below clip.fTop.
289             tmp[3].fY = clip.fTop;
290             clamp_ge(tmp[4].fY, clip.fTop);
291             clamp_ge(tmp[5].fY, clip.fTop);
300                 clamp_ge(pts[i].fY, clip.fTop);
306     if (pts[3].fY > clip.fBottom) {
308         if (chopMonoCubicAtY(pts, clip.fBottom, &t)) {
311             tmp[3].fY = clip.fBottom;
312             clamp_le(tmp[2].fY, clip.fBottom);
321                 clamp_le(pts[i].fY, clip.fBottom);
328 void SkEdgeClipper::clipMonoCubic(const SkPoint src[4], const SkRect& clip) {
333     if (pts[3].fY <= clip.fTop || pts[0].fY >= clip.fBottom) {
337     // Now chop so that pts is contained within clip in Y
338     chop_cubic_in_Y(pts, clip);
348     if (pts[3].fX <= clip.fLeft) {  // wholly to the left
349         this->appendVLine(clip.fLeft, pts[0].fY, pts[3].fY, reverse);
352     if (pts[0].fX >= clip.fRight) {  // wholly to the right
353         this->appendVLine(clip.fRight, pts[0].fY, pts[3].fY, reverse);
358     if (pts[0].fX < clip.fLeft) {
360         if (chopMonoCubicAtX(pts, clip.fLeft, &t)) {
363             this->appendVLine(clip.fLeft, tmp[0].fY, tmp[3].fY, reverse);
365             // tmp[3, 4, 5].fX should all be to the right of clip.fLeft.
368             tmp[3].fX = clip.fLeft;
369             clamp_ge(tmp[4].fX, clip.fLeft);
370             clamp_ge(tmp[5].fX, clip.fLeft);
378             this->appendVLine(clip.fLeft, pts[0].fY, pts[3].fY, reverse);
384     if (pts[3].fX > clip.fRight) {
386         if (chopMonoCubicAtX(pts, clip.fRight, &t)) {
389             tmp[3].fX = clip.fRight;
390             clamp_le(tmp[2].fX, clip.fRight);
391             clamp_le(tmp[1].fX, clip.fRight);
394             this->appendVLine(clip.fRight, tmp[3].fY, tmp[6].fY, reverse);
398             this->appendVLine(clip.fRight, pts[0].fY, pts[3].fY, reverse);
400     } else {    // wholly inside the clip
405 bool SkEdgeClipper::clipCubic(const SkPoint srcPts[4], const SkRect& clip) {
412     if (!quick_reject(bounds, clip)) {
419                 this->clipMonoCubic(&monoX[x * 3], clip);