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Unified Diff: source/row_gcc.cc

Issue 1391273003: port ARGB to 565 dithering AVX2 code to GCC. (Closed) Base URL: https://chromium.googlesource.com/libyuv/libyuv@master
Patch Set: Created 5 years, 2 months ago
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Index: source/row_gcc.cc
diff --git a/source/row_gcc.cc b/source/row_gcc.cc
index e4084e41ca6aee913dfe3c452eea74ee96bef6b8..e7b78b497aeeb5c0d1c753e5522faabe018c860f 100644
--- a/source/row_gcc.cc
+++ b/source/row_gcc.cc
@@ -566,12 +566,58 @@ void ARGBToRGB565DitherRow_SSE2(const uint8* src, uint8* dst,
: "+r"(src), // %0
"+r"(dst), // %1
"+r"(pix) // %2
- : "m"(dither4) // %3
+ : "rm"(dither4) // %3
: "memory", "cc",
"xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
);
}
+#ifdef HAS_ARGBTORGB565DITHERROW_AVX2
+void ARGBToRGB565DitherRow_AVX2(const uint8* src, uint8* dst,
+ const uint32 dither4, int pix) {
+ asm volatile (
+ "vbroadcastss %3,%%xmm6 \n"
+ "vpunpcklbw %%xmm6,%%xmm6,%%xmm6 \n"
+ "vpermq $0xd8,%%ymm6,%%ymm6 \n"
+ "vpunpcklwd %%ymm6,%%ymm6,%%ymm6 \n"
+ "vpcmpeqb %%ymm3,%%ymm3,%%ymm3 \n"
+ "vpsrld $0x1b,%%ymm3,%%ymm3 \n"
+ "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n"
+ "vpsrld $0x1a,%%ymm4,%%ymm4 \n"
+ "vpslld $0x5,%%ymm4,%%ymm4 \n"
+ "vpslld $0xb,%%ymm3,%%ymm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm0 \n"
+ "vpaddusb %%ymm6,%%ymm0,%%ymm0 \n"
+ "vpsrld $0x5,%%ymm0,%%ymm2 \n"
+ "vpsrld $0x3,%%ymm0,%%ymm1 \n"
+ "vpsrld $0x8,%%ymm0,%%ymm0 \n"
+ "vpand %%ymm4,%%ymm2,%%ymm2 \n"
+ "vpand %%ymm3,%%ymm1,%%ymm1 \n"
+ "vpand %%ymm5,%%ymm0,%%ymm0 \n"
+ "vpor %%ymm2,%%ymm1,%%ymm1 \n"
+ "vpor %%ymm1,%%ymm0,%%ymm0 \n"
+ "vpackusdw %%ymm0,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "lea 0x20(%0),%0 \n"
+ "vmovdqu %%xmm0,(%1) \n"
+ "lea 0x10(%1),%1 \n"
+ "sub $0x8,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src), // %0
+ "+r"(dst), // %1
+ "+r"(pix) // %2
+ : "rm"(dither4) // %3
+ : "memory", "cc",
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
+ );
+}
+#endif // HAS_ARGBTORGB565DITHERROW_AVX2
+
+
void ARGBToARGB1555Row_SSE2(const uint8* src, uint8* dst, int pix) {
asm volatile (
"pcmpeqb %%xmm4,%%xmm4 \n"
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