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Diffstat (limited to 'base/gfx/skia_utils_mac.cc')
| -rw-r--r-- | base/gfx/skia_utils_mac.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/base/gfx/skia_utils_mac.cc b/base/gfx/skia_utils_mac.cc index d9ccb3f..b5962c3 100644 --- a/base/gfx/skia_utils_mac.cc +++ b/base/gfx/skia_utils_mac.cc @@ -5,10 +5,26 @@ #include "base/gfx/skia_utils_mac.h" #include "base/logging.h" +#include "SkMatrix.h" #include "SkRect.h" namespace gfx { +CGAffineTransform SkMatrixToCGAffineTransform(const SkMatrix& matrix) { + // CGAffineTransforms don't support perspective transforms, so make sure + // we don't get those. + DCHECK(matrix[SkMatrix::kMPersp0] == 0.0f); + DCHECK(matrix[SkMatrix::kMPersp1] == 0.0f); + DCHECK(matrix[SkMatrix::kMPersp2] == 1.0f); + + return CGAffineTransformMake(matrix[SkMatrix::kMScaleX], + matrix[SkMatrix::kMSkewY], + matrix[SkMatrix::kMSkewX], + matrix[SkMatrix::kMScaleY], + matrix[SkMatrix::kMTransX], + matrix[SkMatrix::kMTransY]); +} + SkIRect CGRectToSkIRect(const CGRect& rect) { SkIRect sk_rect = { SkScalarRound(rect.origin.x), |