test+bench new swizzle SkOpts
BUG=skia:skia:4767
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1564233002
Review URL: https://codereview.chromium.org/1564233002
diff --git a/tests/SwizzlerTest.cpp b/tests/SwizzlerTest.cpp
index 95aaf38..f67cfee 100644
--- a/tests/SwizzlerTest.cpp
+++ b/tests/SwizzlerTest.cpp
@@ -7,6 +7,7 @@
#include "SkSwizzler.h"
#include "Test.h"
+#include "SkOpts.h"
// These are the values that we will look for to indicate that the fill was successful
static const uint8_t kFillIndex = 0x11;
@@ -124,3 +125,35 @@
}
}
}
+
+DEF_TEST(SwizzleOpts, r) {
+ uint32_t dst, src;
+
+ // forall c, c*255 == c, c*0 == 0
+ for (int c = 0; c <= 255; c++) {
+ src = (255<<24) | c;
+ SkOpts::premul_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == src);
+ SkOpts::premul_swaprb_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == (uint32_t)((255<<24) | (c<<16)));
+
+ src = (0<<24) | c;
+ SkOpts::premul_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == 0);
+ SkOpts::premul_swaprb_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == 0);
+ }
+
+ // check a totally arbitrary color
+ src = 0xFACEB004;
+ SkOpts::premul_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == 0xFACAAD04);
+
+ // swap red and blue
+ SkOpts::swaprb_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == 0xFA04B0CE);
+
+ // all together now
+ SkOpts::premul_swaprb_xxxa(&dst, &src, 1);
+ REPORTER_ASSERT(r, dst == 0xFA04ADCA);
+}