27     if (0 == mat[SkMatrix::kMPersp0] && 0 == mat[SkMatrix::kMPersp1]) {  in normalize_perspective()
68     fMat[kMPersp0] = fMat[kMPersp1] = 0;  in reset()
86     fMat[kMPersp1] = 0;  in setAffine()
106     if (fMat[kMPersp0] != 0 || fMat[kMPersp1] != 0 || fMat[kMPersp2] != 1) {  in computePerspectiveTypeMask()
120     if (fMat[kMPersp0] != 0 || fMat[kMPersp1] != 0 || fMat[kMPersp2] != 1) {  in computeTypeMask()
281         fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setTranslate()
341         fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setScale()
381     fMat[kMPersp1] *= sy;  in preScale()
448     fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setSinCos()
463     fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setRSXform()
479     fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setSinCos()
532     fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setSkew()
547     fMat[kMPersp0] = fMat[kMPersp1] = 0;  in setSkew()
668             tmp.fMat[kMPersp1] = rowcol3(&a.fMat[6], &b.fMat[1]);  in setConcat()
705             tmp.fMat[kMPersp1] = 0;  in setConcat()
759                      mat[SkMatrix::kMTransY], mat[SkMatrix::kMPersp1])  in sk_inv_determinant()
766               dcross(mat[SkMatrix::kMSkewY],  mat[SkMatrix::kMPersp1],  in sk_inv_determinant()
811 … dst[kMScaleX] = scross_dscale(src[kMScaleY], src[kMPersp2], src[kMTransY], src[kMPersp1], invDet);  in ComputeInv()
812 … dst[kMSkewX]  = scross_dscale(src[kMTransX], src[kMPersp1], src[kMSkewX],  src[kMPersp2], invDet);  in ComputeInv()
819 … dst[kMPersp0] = scross_dscale(src[kMSkewY],  src[kMPersp1], src[kMScaleY], src[kMPersp0], invDet);  in ComputeInv()
820 … dst[kMPersp1] = scross_dscale(src[kMSkewX],  src[kMPersp0], src[kMScaleX], src[kMPersp1], invDet);  in ComputeInv()
832         dst[kMPersp1] = 0;  in ComputeInv()
858                 inv->fMat[kMPersp0] = inv->fMat[kMPersp1] = 0;  in invertNonIdentity()
940             SkScalar z = sx * m.fMat[kMPersp0] + (sy * m.fMat[kMPersp1] + m.fMat[kMPersp2]);  in Persp_pts()
942             SkScalar z = sdot(sx, m.fMat[kMPersp0], sy, m.fMat[kMPersp1]) + m.fMat[kMPersp2];  in Persp_pts()
991             SkScalar w = sdot(sx, fMat[kMPersp0], sy, fMat[kMPersp1], sw, fMat[kMPersp2]);  in mapHomogeneousPoints()
1064     SkScalar z = sdot(sx, m.fMat[kMPersp0], sy, m.fMat[kMPersp1]) + m.fMat[kMPersp2];  in Persp_xy()
1159     if (PerspNearlyZero(fMat[kMPersp1]) &&  in fixedStepInX()
1163         SkScalar z = y * fMat[kMPersp1] + fMat[kMPersp2];  in fixedStepInX()
1264     dst->fMat[kMPersp1] = 0;  in Poly2Proc()
1282     dst->fMat[kMPersp1] = 0;  in Poly3Proc()
1341     dst->fMat[kMPersp1] = a1 * invScale;  in Poly4Proc()