1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "GrGLSLUtil.h" 9 #include "SkMatrix.h" 10 11 template<> void GrGLSLGetMatrix<3>(float* dest, const SkMatrix& src) { 12 // Col 0 13 dest[0] = SkScalarToFloat(src[SkMatrix::kMScaleX]); 14 dest[1] = SkScalarToFloat(src[SkMatrix::kMSkewY]); 15 dest[2] = SkScalarToFloat(src[SkMatrix::kMPersp0]); 16 17 // Col 1 18 dest[3] = SkScalarToFloat(src[SkMatrix::kMSkewX]); 19 dest[4] = SkScalarToFloat(src[SkMatrix::kMScaleY]); 20 dest[5] = SkScalarToFloat(src[SkMatrix::kMPersp1]); 21 22 // Col 2 23 dest[6] = SkScalarToFloat(src[SkMatrix::kMTransX]); 24 dest[7] = SkScalarToFloat(src[SkMatrix::kMTransY]); 25 dest[8] = SkScalarToFloat(src[SkMatrix::kMPersp2]); 26 } 27 28 template<> void GrGLSLGetMatrix<4>(float* dest, const SkMatrix& src) { 29 // Col 0 30 dest[0] = SkScalarToFloat(src[SkMatrix::kMScaleX]); 31 dest[1] = SkScalarToFloat(src[SkMatrix::kMSkewY]); 32 dest[2] = 0; 33 dest[3] = SkScalarToFloat(src[SkMatrix::kMPersp0]); 34 35 // Col 1 36 dest[4] = SkScalarToFloat(src[SkMatrix::kMSkewX]); 37 dest[5] = SkScalarToFloat(src[SkMatrix::kMScaleY]); 38 dest[6] = 0; 39 dest[7] = SkScalarToFloat(src[SkMatrix::kMPersp1]); 40 41 // Col 2 42 dest[8] = 0; 43 dest[9] = 0; 44 dest[10] = 1; 45 dest[11] = 0; 46 47 // Col 3 48 dest[12] = SkScalarToFloat(src[SkMatrix::kMTransX]); 49 dest[13] = SkScalarToFloat(src[SkMatrix::kMTransY]); 50 dest[14] = 0; 51 dest[15] = SkScalarToFloat(src[SkMatrix::kMPersp2]); 52 } 53
