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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 "SkBlendMode.h"
9 #include "SkMaskFilter.h"
10 #include "SkPaint.h"
11 #include "SkShader.h"
12 
13 #include "sk_paint.h"
14 #include "sk_types_priv.h"
15 
16 #define MAKE_FROM_TO_NAME(FROM)     g_ ## FROM ## _map
17 
18 const struct {
19     sk_stroke_cap_t fC;
20     SkPaint::Cap    fSK;
21 } MAKE_FROM_TO_NAME(sk_stroke_cap_t)[] = {
22     { BUTT_SK_STROKE_CAP,   SkPaint::kButt_Cap   },
23     { ROUND_SK_STROKE_CAP,  SkPaint::kRound_Cap  },
24     { SQUARE_SK_STROKE_CAP, SkPaint::kSquare_Cap },
25 };
26 
27 const struct {
28     sk_stroke_join_t fC;
29     SkPaint::Join    fSK;
30 } MAKE_FROM_TO_NAME(sk_stroke_join_t)[] = {
31     { MITER_SK_STROKE_JOIN, SkPaint::kMiter_Join },
32     { ROUND_SK_STROKE_JOIN, SkPaint::kRound_Join },
33     { BEVEL_SK_STROKE_JOIN, SkPaint::kBevel_Join },
34 };
35 
36 #define CType           sk_stroke_cap_t
37 #define SKType          SkPaint::Cap
38 #define CTypeSkTypeMap  MAKE_FROM_TO_NAME(sk_stroke_cap_t)
39 #include "sk_c_from_to.h"
40 
41 #define CType           sk_stroke_join_t
42 #define SKType          SkPaint::Join
43 #define CTypeSkTypeMap  MAKE_FROM_TO_NAME(sk_stroke_join_t)
44 #include "sk_c_from_to.h"
45 
46 //////////////////////////////////////////////////////////////////////////////////////////////////
47 
sk_paint_new()48 sk_paint_t* sk_paint_new() { return (sk_paint_t*)new SkPaint; }
49 
sk_paint_delete(sk_paint_t * cpaint)50 void sk_paint_delete(sk_paint_t* cpaint) { delete AsPaint(cpaint); }
51 
sk_paint_is_antialias(const sk_paint_t * cpaint)52 bool sk_paint_is_antialias(const sk_paint_t* cpaint) {
53     return AsPaint(*cpaint).isAntiAlias();
54 }
55 
sk_paint_set_antialias(sk_paint_t * cpaint,bool aa)56 void sk_paint_set_antialias(sk_paint_t* cpaint, bool aa) {
57     AsPaint(cpaint)->setAntiAlias(aa);
58 }
59 
sk_paint_get_color(const sk_paint_t * cpaint)60 sk_color_t sk_paint_get_color(const sk_paint_t* cpaint) {
61     return AsPaint(*cpaint).getColor();
62 }
63 
sk_paint_set_color(sk_paint_t * cpaint,sk_color_t c)64 void sk_paint_set_color(sk_paint_t* cpaint, sk_color_t c) {
65     AsPaint(cpaint)->setColor(c);
66 }
67 
sk_paint_set_shader(sk_paint_t * cpaint,sk_shader_t * cshader)68 void sk_paint_set_shader(sk_paint_t* cpaint, sk_shader_t* cshader) {
69     AsPaint(cpaint)->setShader(sk_ref_sp(AsShader(cshader)));
70 }
71 
sk_paint_set_maskfilter(sk_paint_t * cpaint,sk_maskfilter_t * cfilter)72 void sk_paint_set_maskfilter(sk_paint_t* cpaint, sk_maskfilter_t* cfilter) {
73     AsPaint(cpaint)->setMaskFilter(sk_ref_sp(AsMaskFilter(cfilter)));
74 }
75 
sk_paint_is_stroke(const sk_paint_t * cpaint)76 bool sk_paint_is_stroke(const sk_paint_t* cpaint) {
77     return AsPaint(*cpaint).getStyle() != SkPaint::kFill_Style;
78 }
79 
sk_paint_set_stroke(sk_paint_t * cpaint,bool doStroke)80 void sk_paint_set_stroke(sk_paint_t* cpaint, bool doStroke) {
81     AsPaint(cpaint)->setStyle(doStroke ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
82 }
83 
sk_paint_get_stroke_width(const sk_paint_t * cpaint)84 float sk_paint_get_stroke_width(const sk_paint_t* cpaint) {
85     return AsPaint(*cpaint).getStrokeWidth();
86 }
87 
sk_paint_set_stroke_width(sk_paint_t * cpaint,float width)88 void sk_paint_set_stroke_width(sk_paint_t* cpaint, float width) {
89     AsPaint(cpaint)->setStrokeWidth(width);
90 }
91 
sk_paint_get_stroke_miter(const sk_paint_t * cpaint)92 float sk_paint_get_stroke_miter(const sk_paint_t* cpaint) {
93     return AsPaint(*cpaint).getStrokeMiter();
94 }
95 
sk_paint_set_stroke_miter(sk_paint_t * cpaint,float miter)96 void sk_paint_set_stroke_miter(sk_paint_t* cpaint, float miter) {
97     AsPaint(cpaint)->setStrokeMiter(miter);
98 }
99 
sk_paint_get_stroke_cap(const sk_paint_t * cpaint)100 sk_stroke_cap_t sk_paint_get_stroke_cap(const sk_paint_t* cpaint) {
101     sk_stroke_cap_t ccap;
102     if (find_c(AsPaint(*cpaint).getStrokeCap(), &ccap)) {
103         ccap = BUTT_SK_STROKE_CAP;
104     }
105     return ccap;
106 }
107 
sk_paint_set_stroke_cap(sk_paint_t * cpaint,sk_stroke_cap_t ccap)108 void sk_paint_set_stroke_cap(sk_paint_t* cpaint, sk_stroke_cap_t ccap) {
109     SkPaint::Cap skcap;
110     if (find_sk(ccap, &skcap)) {
111         AsPaint(cpaint)->setStrokeCap(skcap);
112     } else {
113         // unknown ccap
114     }
115 }
116 
sk_paint_get_stroke_join(const sk_paint_t * cpaint)117 sk_stroke_join_t sk_paint_get_stroke_join(const sk_paint_t* cpaint) {
118     sk_stroke_join_t cjoin;
119     if (find_c(AsPaint(*cpaint).getStrokeJoin(), &cjoin)) {
120         cjoin = MITER_SK_STROKE_JOIN;
121     }
122     return cjoin;
123 }
124 
sk_paint_set_stroke_join(sk_paint_t * cpaint,sk_stroke_join_t cjoin)125 void sk_paint_set_stroke_join(sk_paint_t* cpaint, sk_stroke_join_t cjoin) {
126     SkPaint::Join skjoin;
127     if (find_sk(cjoin, &skjoin)) {
128         AsPaint(cpaint)->setStrokeJoin(skjoin);
129     } else {
130         // unknown cjoin
131     }
132 }
133 
sk_paint_set_xfermode_mode(sk_paint_t * paint,sk_xfermode_mode_t mode)134 void sk_paint_set_xfermode_mode(sk_paint_t* paint, sk_xfermode_mode_t mode) {
135     SkASSERT(paint);
136     SkBlendMode skmode;
137     switch (mode) {
138         #define MAP(X, Y) case (X): skmode = (Y); break
139         MAP( CLEAR_SK_XFERMODE_MODE,      SkBlendMode::kClear      );
140         MAP( SRC_SK_XFERMODE_MODE,        SkBlendMode::kSrc        );
141         MAP( DST_SK_XFERMODE_MODE,        SkBlendMode::kDst        );
142         MAP( SRCOVER_SK_XFERMODE_MODE,    SkBlendMode::kSrcOver    );
143         MAP( DSTOVER_SK_XFERMODE_MODE,    SkBlendMode::kDstOver    );
144         MAP( SRCIN_SK_XFERMODE_MODE,      SkBlendMode::kSrcIn      );
145         MAP( DSTIN_SK_XFERMODE_MODE,      SkBlendMode::kDstIn      );
146         MAP( SRCOUT_SK_XFERMODE_MODE,     SkBlendMode::kSrcOut     );
147         MAP( DSTOUT_SK_XFERMODE_MODE,     SkBlendMode::kDstOut     );
148         MAP( SRCATOP_SK_XFERMODE_MODE,    SkBlendMode::kSrcATop    );
149         MAP( DSTATOP_SK_XFERMODE_MODE,    SkBlendMode::kDstATop    );
150         MAP( XOR_SK_XFERMODE_MODE,        SkBlendMode::kXor        );
151         MAP( PLUS_SK_XFERMODE_MODE,       SkBlendMode::kPlus       );
152         MAP( MODULATE_SK_XFERMODE_MODE,   SkBlendMode::kModulate   );
153         MAP( SCREEN_SK_XFERMODE_MODE,     SkBlendMode::kScreen     );
154         MAP( OVERLAY_SK_XFERMODE_MODE,    SkBlendMode::kOverlay    );
155         MAP( DARKEN_SK_XFERMODE_MODE,     SkBlendMode::kDarken     );
156         MAP( LIGHTEN_SK_XFERMODE_MODE,    SkBlendMode::kLighten    );
157         MAP( COLORDODGE_SK_XFERMODE_MODE, SkBlendMode::kColorDodge );
158         MAP( COLORBURN_SK_XFERMODE_MODE,  SkBlendMode::kColorBurn  );
159         MAP( HARDLIGHT_SK_XFERMODE_MODE,  SkBlendMode::kHardLight  );
160         MAP( SOFTLIGHT_SK_XFERMODE_MODE,  SkBlendMode::kSoftLight  );
161         MAP( DIFFERENCE_SK_XFERMODE_MODE, SkBlendMode::kDifference );
162         MAP( EXCLUSION_SK_XFERMODE_MODE,  SkBlendMode::kExclusion  );
163         MAP( MULTIPLY_SK_XFERMODE_MODE,   SkBlendMode::kMultiply   );
164         MAP( HUE_SK_XFERMODE_MODE,        SkBlendMode::kHue        );
165         MAP( SATURATION_SK_XFERMODE_MODE, SkBlendMode::kSaturation );
166         MAP( COLOR_SK_XFERMODE_MODE,      SkBlendMode::kColor      );
167         MAP( LUMINOSITY_SK_XFERMODE_MODE, SkBlendMode::kLuminosity );
168         #undef MAP
169         default:
170             return;
171     }
172     AsPaint(paint)->setBlendMode(skmode);
173 }
174