const char* final,
const char* src,
const char* dst) {
- builder->fsCodeAppendf("\t\t%s.rgb = mix(2.0 * %s.rgb * %s.rgb, ",
- final, src, dst);
- builder->fsCodeAppendf("%s.aaa * %s.aaa - 2.0 * (%s.aaa - %s.rgb) * (%s.aaa - %s.rgb),",
- src, dst, dst, dst, src, src);
- builder->fsCodeAppendf("vec3(greaterThan(2.0 * %s.rgb, %s.aaa)));\n",
- src, src);
+ static const char kComponents[] = {'r', 'g', 'b'};
+ for (size_t i = 0; i < SK_ARRAY_COUNT(kComponents); ++i) {
+ char component = kComponents[i];
+ builder->fsCodeAppendf("\t\tif (2.0 * %s.%c <= %s.a) {\n", src, component, src);
+ builder->fsCodeAppendf("\t\t\t%s.%c = 2.0 * %s.%c * %s.%c;\n", final, component, src, component, dst, component);
+ builder->fsCodeAppend("\t\t} else {\n");
+ builder->fsCodeAppendf("\t\t\t%s.%c = %s.a * %s.a - 2.0 * (%s.a - %s.%c) * (%s.a - %s.%c);\n",
+ final, component, src, dst, dst, dst, component, src, src, component);
+ builder->fsCodeAppend("\t\t}\n");
+ }
builder->fsCodeAppendf("\t\t%s.rgb += %s.rgb * (1.0 - %s.a) + %s.rgb * (1.0 - %s.a);\n",
final, src, dst, dst, src);
}
GrContext*,
const GrDrawTargetCaps&,
GrTexture*[]) {
- int mode;
- do {
- mode = rand->nextRangeU(SkXfermode::kLastCoeffMode + 1, SkXfermode::kLastSeparableMode);
- } while (mode == SkXfermode::kHardLight_Mode);
+ int mode = rand->nextRangeU(SkXfermode::kLastCoeffMode + 1, SkXfermode::kLastSeparableMode);
static AutoEffectUnref gEffect(SkNEW_ARGS(XferEffect, (static_cast<SkXfermode::Mode>(mode))));
return CreateEffectRef(gEffect);