2 * Copyright 2014 Google Inc.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
8 #ifndef SkSurfaceProps_DEFINED
9 #define SkSurfaceProps_DEFINED
14 * Description of how the LCD strips are arranged for each pixel. If this is unknown, or the
15 * pixels are meant to be "portable" and/or transformed before showing (e.g. rotated, scaled)
16 * then use kUnknown_SkPixelGeometry.
18 enum SkPixelGeometry {
19 kUnknown_SkPixelGeometry,
20 kRGB_H_SkPixelGeometry,
21 kBGR_H_SkPixelGeometry,
22 kRGB_V_SkPixelGeometry,
23 kBGR_V_SkPixelGeometry,
26 // Returns true iff geo is a known geometry and is RGB.
27 static inline bool SkPixelGeometryIsRGB(SkPixelGeometry geo) {
28 return kRGB_H_SkPixelGeometry == geo || kRGB_V_SkPixelGeometry == geo;
31 // Returns true iff geo is a known geometry and is BGR.
32 static inline bool SkPixelGeometryIsBGR(SkPixelGeometry geo) {
33 return kBGR_H_SkPixelGeometry == geo || kBGR_V_SkPixelGeometry == geo;
36 // Returns true iff geo is a known geometry and is horizontal.
37 static inline bool SkPixelGeometryIsH(SkPixelGeometry geo) {
38 return kRGB_H_SkPixelGeometry == geo || kBGR_H_SkPixelGeometry == geo;
41 // Returns true iff geo is a known geometry and is vertical.
42 static inline bool SkPixelGeometryIsV(SkPixelGeometry geo) {
43 return kRGB_V_SkPixelGeometry == geo || kBGR_V_SkPixelGeometry == geo;
47 * Describes properties and constraints of a given SkSurface. The rendering engine can parse these
48 * during drawing, and can sometimes optimize its performance (e.g. disabling an expensive
51 class SkSurfaceProps {
54 kDisallowAntiAlias_Flag = 1 << 0,
55 kDisallowDither_Flag = 1 << 1,
56 kUseDistanceFieldFonts_Flag = 1 << 2,
58 SkSurfaceProps(uint32_t flags, SkPixelGeometry);
61 kLegacyFontHost_InitType
63 SkSurfaceProps(InitType);
64 SkSurfaceProps(uint32_t flags, InitType);
66 uint32_t flags() const { return fFlags; }
67 SkPixelGeometry pixelGeometry() const { return fPixelGeometry; }
69 bool isDisallowAA() const { return SkToBool(fFlags & kDisallowAntiAlias_Flag); }
70 bool isDisallowDither() const { return SkToBool(fFlags & kDisallowDither_Flag); }
71 bool isUseDistanceFieldFonts() const { return SkToBool(fFlags & kUseDistanceFieldFonts_Flag); }
77 SkPixelGeometry fPixelGeometry;