ARGBcolorMatrix for applying transforms such as grey and sepia in a more general form. Unittest does sepia for comparison.
BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/656004
git-svn-id: http://libyuv.googlecode.com/svn/trunk@288 16f28f9a-4ce2-e073-06de-1de4eb20be90
diff --git a/source/row_posix.cc b/source/row_posix.cc
index e69779d..90adcb8 100644
--- a/source/row_posix.cc
+++ b/source/row_posix.cc
@@ -2800,7 +2800,7 @@
24, 98, 50, 0, 24, 98, 50, 0, 24, 98, 50, 0, 24, 98, 50, 0
};
-// Convert 8 ARGB pixels (64 bytes) to 8 Sepia ARGB pixels
+// Convert 8 ARGB pixels (32 bytes) to 8 Sepia ARGB pixels.
void ARGBSepiaRow_SSSE3(uint8* dst_argb, int width) {
asm volatile (
"movdqa %2,%%xmm2 \n"
@@ -2859,6 +2859,69 @@
}
#endif // HAS_ARGBSEPIAROW_SSSE3
+#ifdef HAS_ARGBCOLORMATRIXROW_SSSE3
+// Tranform 8 ARGB pixels (32 bytes) with color matrix.
+// Same as Sepia except matrix is provided.
+void ARGBColorMatrixRow_SSSE3(uint8* dst_argb, const int8* matrix_argb,
+ int width) {
+ asm volatile (
+ "movd (%2),%%xmm2 \n"
+ "movd 0x4(%2),%%xmm3 \n"
+ "movd 0x8(%2),%%xmm4 \n"
+ "pshufd $0x0,%%xmm2,%%xmm2 \n"
+ "pshufd $0x0,%%xmm3,%%xmm3 \n"
+ "pshufd $0x0,%%xmm4,%%xmm4 \n"
+ // 8 pixel loop \n"
+ ".p2align 4 \n"
+ "1: \n"
+ "movdqa (%0),%%xmm0 \n"
+ "movdqa 0x10(%0),%%xmm6 \n"
+ "pmaddubsw %%xmm2,%%xmm0 \n"
+ "pmaddubsw %%xmm2,%%xmm6 \n"
+ "phaddw %%xmm6,%%xmm0 \n"
+ "psrlw $0x7,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movdqa (%0),%%xmm5 \n"
+ "movdqa 0x10(%0),%%xmm1 \n"
+ "pmaddubsw %%xmm3,%%xmm5 \n"
+ "pmaddubsw %%xmm3,%%xmm1 \n"
+ "phaddw %%xmm1,%%xmm5 \n"
+ "psrlw $0x7,%%xmm5 \n"
+ "packuswb %%xmm5,%%xmm5 \n"
+ "punpcklbw %%xmm5,%%xmm0 \n"
+ "movdqa (%0),%%xmm5 \n"
+ "movdqa 0x10(%0),%%xmm1 \n"
+ "pmaddubsw %%xmm4,%%xmm5 \n"
+ "pmaddubsw %%xmm4,%%xmm1 \n"
+ "phaddw %%xmm1,%%xmm5 \n"
+ "psrlw $0x7,%%xmm5 \n"
+ "packuswb %%xmm5,%%xmm5 \n"
+ "movdqa (%0),%%xmm6 \n"
+ "movdqa 0x10(%0),%%xmm1 \n"
+ "psrld $0x18,%%xmm6 \n"
+ "psrld $0x18,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "punpcklbw %%xmm6,%%xmm5 \n"
+ "movdqa %%xmm0,%%xmm1 \n"
+ "punpcklwd %%xmm5,%%xmm0 \n"
+ "punpckhwd %%xmm5,%%xmm1 \n"
+ "sub $0x8,%1 \n"
+ "movdqa %%xmm0,(%0) \n"
+ "movdqa %%xmm1,0x10(%0) \n"
+ "lea 0x20(%0),%0 \n"
+ "jg 1b \n"
+ : "+r"(dst_argb), // %0
+ "+r"(width) // %1
+ : "r"(matrix_argb) // %2
+ : "memory", "cc"
+#if defined(__SSE2__)
+ , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
+#endif
+ );
+}
+#endif // HAS_ARGBCOLORMATRIXROW_SSSE3
+
#ifdef HAS_COMPUTECUMULATIVESUMROW_SSE2
// Creates a table of cumulative sums where each value is a sum of all values
// above and to the left of the value, inclusive of the value.