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Unified Diff: source/row_gcc.cc

Issue 2430313008: scale by 1 for neon implemented (Closed)
Patch Set: one allocations for halffloat test Created 4 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 8020108d041ac71be101d3155b017a514ff42f21..bc15c771994e8777d8b307f77c5d1b655bf26709 100644
--- a/source/row_gcc.cc
+++ b/source/row_gcc.cc
@@ -5410,6 +5410,36 @@ void HalfFloatRow_F16C(const uint16* src, uint16* dst, float scale, int width) {
}
#endif // HAS_HALFFLOATROW_F16C
+#ifdef HAS_HALFFLOATROW_F16C
+void HalfFloat1Row_F16C(const uint16* src, uint16* dst, float, int width) {
+ asm volatile (
+ // 16 pixel loop.
+ LABELALIGN
+ "1: \n"
+ "vpmovzxwd " MEMACCESS(0) ",%%ymm2 \n" // 16 shorts -> 16 ints
+ "vpmovzxwd " MEMACCESS2(0x10,0) ",%%ymm3 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "vcvtdq2ps %%ymm2,%%ymm2 \n"
+ "vcvtdq2ps %%ymm3,%%ymm3 \n"
+ "vcvtps2ph $3, %%ymm2, %%xmm2 \n"
+ "vcvtps2ph $3, %%ymm3, %%xmm3 \n"
+ "vmovdqu %%xmm2," MEMACCESS(1) " \n"
+ "vmovdqu %%xmm3," MEMACCESS2(0x10,1) " \n"
+ "lea " MEMLEA(0x20,1) ",%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+
+ "vzeroupper \n"
+ : "+r"(src), // %0
+ "+r"(dst), // %1
+ "+r"(width) // %2
+ :
+ : "memory", "cc",
+ "xmm2", "xmm3"
+ );
+}
+#endif // HAS_HALFFLOATROW_F16C
+
#ifdef HAS_ARGBCOLORTABLEROW_X86
// Tranform ARGB pixels with color table.
void ARGBColorTableRow_X86(uint8* dst_argb, const uint8* table_argb,
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