C API: add sk_xfermode.h, impl, test
Review URL: https://codereview.chromium.org/1242403005
diff --git a/include/c/sk_paint.h b/include/c/sk_paint.h
index 481147f..3824380 100644
--- a/include/c/sk_paint.h
+++ b/include/c/sk_paint.h
@@ -65,6 +65,11 @@
*/
void sk_paint_set_maskfilter(sk_paint_t*, sk_maskfilter_t*);
+/**
+ * Set the paint's xfermode to the specified parameter.
+ */
+void sk_paint_set_xfermode_mode(sk_paint_t*, sk_xfermode_mode_t);
+
SK_C_PLUS_PLUS_END_GUARD
#endif
diff --git a/include/c/sk_types.h b/include/c/sk_types.h
index 17ba929..f517434 100644
--- a/include/c/sk_types.h
+++ b/include/c/sk_types.h
@@ -108,6 +108,38 @@
typedef struct sk_shader_t sk_shader_t;
typedef struct sk_surface_t sk_surface_t;
+typedef enum {
+ CLEAR_SK_XFERMODE_MODE,
+ SRC_SK_XFERMODE_MODE,
+ DST_SK_XFERMODE_MODE,
+ SRCOVER_SK_XFERMODE_MODE,
+ DSTOVER_SK_XFERMODE_MODE,
+ SRCIN_SK_XFERMODE_MODE,
+ DSTIN_SK_XFERMODE_MODE,
+ SRCOUT_SK_XFERMODE_MODE,
+ DSTOUT_SK_XFERMODE_MODE,
+ SRCATOP_SK_XFERMODE_MODE,
+ DSTATOP_SK_XFERMODE_MODE,
+ XOR_SK_XFERMODE_MODE,
+ PLUS_SK_XFERMODE_MODE,
+ MODULATE_SK_XFERMODE_MODE,
+ SCREEN_SK_XFERMODE_MODE,
+ OVERLAY_SK_XFERMODE_MODE,
+ DARKEN_SK_XFERMODE_MODE,
+ LIGHTEN_SK_XFERMODE_MODE,
+ COLORDODGE_SK_XFERMODE_MODE,
+ COLORBURN_SK_XFERMODE_MODE,
+ HARDLIGHT_SK_XFERMODE_MODE,
+ SOFTLIGHT_SK_XFERMODE_MODE,
+ DIFFERENCE_SK_XFERMODE_MODE,
+ EXCLUSION_SK_XFERMODE_MODE,
+ MULTIPLY_SK_XFERMODE_MODE,
+ HUE_SK_XFERMODE_MODE,
+ SATURATION_SK_XFERMODE_MODE,
+ COLOR_SK_XFERMODE_MODE,
+ LUMINOSITY_SK_XFERMODE_MODE,
+} sk_xfermode_mode_t;
+
//////////////////////////////////////////////////////////////////////////////////////////
#ifdef __cplusplus
diff --git a/src/c/sk_paint.cpp b/src/c/sk_paint.cpp
index e71285d..330c796 100644
--- a/src/c/sk_paint.cpp
+++ b/src/c/sk_paint.cpp
@@ -132,4 +132,43 @@
}
}
-
+void sk_paint_set_xfermode_mode(sk_paint_t* paint, sk_xfermode_mode_t mode) {
+ SkASSERT(paint);
+ SkXfermode::Mode skmode;
+ switch (mode) {
+ #define MAP(X, Y) case (X): skmode = (Y); break
+ MAP( CLEAR_SK_XFERMODE_MODE, SkXfermode::kClear_Mode );
+ MAP( SRC_SK_XFERMODE_MODE, SkXfermode::kSrc_Mode );
+ MAP( DST_SK_XFERMODE_MODE, SkXfermode::kDst_Mode );
+ MAP( SRCOVER_SK_XFERMODE_MODE, SkXfermode::kSrcOver_Mode );
+ MAP( DSTOVER_SK_XFERMODE_MODE, SkXfermode::kDstOver_Mode );
+ MAP( SRCIN_SK_XFERMODE_MODE, SkXfermode::kSrcIn_Mode );
+ MAP( DSTIN_SK_XFERMODE_MODE, SkXfermode::kDstIn_Mode );
+ MAP( SRCOUT_SK_XFERMODE_MODE, SkXfermode::kSrcOut_Mode );
+ MAP( DSTOUT_SK_XFERMODE_MODE, SkXfermode::kDstOut_Mode );
+ MAP( SRCATOP_SK_XFERMODE_MODE, SkXfermode::kSrcATop_Mode );
+ MAP( DSTATOP_SK_XFERMODE_MODE, SkXfermode::kDstATop_Mode );
+ MAP( XOR_SK_XFERMODE_MODE, SkXfermode::kXor_Mode );
+ MAP( PLUS_SK_XFERMODE_MODE, SkXfermode::kPlus_Mode );
+ MAP( MODULATE_SK_XFERMODE_MODE, SkXfermode::kModulate_Mode );
+ MAP( SCREEN_SK_XFERMODE_MODE, SkXfermode::kScreen_Mode );
+ MAP( OVERLAY_SK_XFERMODE_MODE, SkXfermode::kOverlay_Mode );
+ MAP( DARKEN_SK_XFERMODE_MODE, SkXfermode::kDarken_Mode );
+ MAP( LIGHTEN_SK_XFERMODE_MODE, SkXfermode::kLighten_Mode );
+ MAP( COLORDODGE_SK_XFERMODE_MODE, SkXfermode::kColorDodge_Mode );
+ MAP( COLORBURN_SK_XFERMODE_MODE, SkXfermode::kColorBurn_Mode );
+ MAP( HARDLIGHT_SK_XFERMODE_MODE, SkXfermode::kHardLight_Mode );
+ MAP( SOFTLIGHT_SK_XFERMODE_MODE, SkXfermode::kSoftLight_Mode );
+ MAP( DIFFERENCE_SK_XFERMODE_MODE, SkXfermode::kDifference_Mode );
+ MAP( EXCLUSION_SK_XFERMODE_MODE, SkXfermode::kExclusion_Mode );
+ MAP( MULTIPLY_SK_XFERMODE_MODE, SkXfermode::kMultiply_Mode );
+ MAP( HUE_SK_XFERMODE_MODE, SkXfermode::kHue_Mode );
+ MAP( SATURATION_SK_XFERMODE_MODE, SkXfermode::kSaturation_Mode );
+ MAP( COLOR_SK_XFERMODE_MODE, SkXfermode::kColor_Mode );
+ MAP( LUMINOSITY_SK_XFERMODE_MODE, SkXfermode::kLuminosity_Mode );
+ #undef MAP
+ default:
+ return;
+ }
+ AsPaint(paint)->setXfermodeMode(skmode);
+}
diff --git a/tests/CTest.cpp b/tests/CTest.cpp
index 413f629..acab4bb 100644
--- a/tests/CTest.cpp
+++ b/tests/CTest.cpp
@@ -32,6 +32,11 @@
sk_canvas_draw_paint(canvas, paint);
REPORTER_ASSERT(reporter, 0xFFFFFFFF == pixel[0]);
+ sk_paint_set_xfermode_mode(paint, SRC_SK_XFERMODE_MODE);
+ sk_paint_set_color(paint, sk_color_set_argb(0x80, 0x80, 0x80, 0x80));
+ sk_canvas_draw_paint(canvas, paint);
+ REPORTER_ASSERT(reporter, 0x80404040 == pixel[0]);
+
sk_paint_delete(paint);
sk_surface_unref(surface);
}