[vlc-devel] commit: let gcc choose how to reference memory addresses in i420_rgx mmx asm ( Rafaël Carré )
git version control
git at videolan.org
Wed Mar 26 07:29:55 CET 2008
vlc | branch: master | Rafaël Carré <funman at videolan.org> | Wed Mar 26 07:28:36 2008 +0100| [6c50d21cebc1c6c809e56400f4cc5ed7aa6856a4]
let gcc choose how to reference memory addresses in i420_rgx mmx asm
patch by Alexis Ballier, fix #1383
> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=6c50d21cebc1c6c809e56400f4cc5ed7aa6856a4
---
modules/video_chroma/i420_rgb_mmx.h | 83 +++++++++++++++++------------------
1 files changed, 41 insertions(+), 42 deletions(-)
diff --git a/modules/video_chroma/i420_rgb_mmx.h b/modules/video_chroma/i420_rgb_mmx.h
index cb7a9d8..e9c32fb 100644
--- a/modules/video_chroma/i420_rgb_mmx.h
+++ b/modules/video_chroma/i420_rgb_mmx.h
@@ -34,18 +34,19 @@
#define USED_U64(foo) \
static const uint64_t foo __asm__ (#foo) __attribute__((unused))
#endif
-USED_U64(mmx_80w) = 0x0080008000800080ULL;
-USED_U64(mmx_10w) = 0x1010101010101010ULL;
-USED_U64(mmx_00ffw) = 0x00ff00ff00ff00ffULL;
-USED_U64(mmx_Y_coeff) = 0x253f253f253f253fULL;
-
-USED_U64(mmx_U_green) = 0xf37df37df37df37dULL;
-USED_U64(mmx_U_blue) = 0x4093409340934093ULL;
-USED_U64(mmx_V_red) = 0x3312331233123312ULL;
-USED_U64(mmx_V_green) = 0xe5fce5fce5fce5fcULL;
-
-USED_U64(mmx_mask_f8) = 0xf8f8f8f8f8f8f8f8ULL;
-USED_U64(mmx_mask_fc) = 0xfcfcfcfcfcfcfcfcULL;
+USED_U64(mmx_80w) = 0x0080008000800080ULL; /* Will be referenced as %4
+ * in inline asm */
+USED_U64(mmx_10w) = 0x1010101010101010ULL; /* -- as %5 */
+USED_U64(mmx_00ffw) = 0x00ff00ff00ff00ffULL; /* -- as %6 */
+USED_U64(mmx_Y_coeff) = 0x253f253f253f253fULL; /* -- as %7 */
+
+USED_U64(mmx_U_green) = 0xf37df37df37df37dULL; /* -- as %8 */
+USED_U64(mmx_U_blue) = 0x4093409340934093ULL; /* -- as %9 */
+USED_U64(mmx_V_red) = 0x3312331233123312ULL; /* -- as %10 */
+USED_U64(mmx_V_green) = 0xe5fce5fce5fce5fcULL; /* -- as %11 */
+
+USED_U64(mmx_mask_f8) = 0xf8f8f8f8f8f8f8f8ULL; /* -- as %12 */
+USED_U64(mmx_mask_fc) = 0xfcfcfcfcfcfcfcfcULL; /* -- as %13 */
#undef USED_U64
#if defined(CAN_COMPILE_MMX)
@@ -59,18 +60,16 @@ USED_U64(mmx_mask_fc) = 0xfcfcfcfcfcfcfcfcULL;
MMX_INSTRUCTIONS \
: \
: "r" (p_y), "r" (p_u), \
- "r" (p_v), "r" (p_buffer) ); \
+ "r" (p_v), "r" (p_buffer), \
+ "m" (mmx_80w), "m" (mmx_10w), \
+ "m" (mmx_00ffw), "m" (mmx_Y_coeff), \
+ "m" (mmx_U_green), "m" (mmx_U_blue), \
+ "m" (mmx_V_red), "m" (mmx_V_green), \
+ "m" (mmx_mask_f8), "m" (mmx_mask_fc) ); \
} while(0)
#define MMX_END __asm__ __volatile__ ( "emms" )
-/* Use RIP-relative code in PIC mode on amd64 */
-#if defined(__x86_64__) && defined(__PIC__)
-# define G "(%%rip)"
-#else
-# define G
-#endif
-
#define MMX_INIT_16 " \n\
movd (%1), %%mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0 \n\
movd (%2), %%mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0 \n\
@@ -103,27 +102,27 @@ movq (%0), %%mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
# convert the chroma part \n\
punpcklbw %%mm4, %%mm0 # scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 \n\
punpcklbw %%mm4, %%mm1 # scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 \n\
-psubsw mmx_80w"G", %%mm0 # Cb -= 128 \n\
-psubsw mmx_80w"G", %%mm1 # Cr -= 128 \n\
+psubsw %4, %%mm0 # Cb -= 128 \n\
+psubsw %4, %%mm1 # Cr -= 128 \n\
psllw $3, %%mm0 # Promote precision \n\
psllw $3, %%mm1 # Promote precision \n\
movq %%mm0, %%mm2 # Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 \n\
movq %%mm1, %%mm3 # Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 \n\
-pmulhw mmx_U_green"G", %%mm2 # Mul Cb with green coeff -> Cb green \n\
-pmulhw mmx_V_green"G", %%mm3 # Mul Cr with green coeff -> Cr green \n\
-pmulhw mmx_U_blue"G", %%mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 \n\
-pmulhw mmx_V_red"G", %%mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 \n\
+pmulhw %8, %%mm2 # Mul Cb with green coeff -> Cb green \n\
+pmulhw %11, %%mm3 # Mul Cr with green coeff -> Cr green \n\
+pmulhw %9, %%mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 \n\
+pmulhw %10, %%mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 \n\
paddsw %%mm3, %%mm2 # Cb green + Cr green -> Cgreen \n\
\n\
# convert the luma part \n\
-psubusb mmx_10w"G", %%mm6 # Y -= 16 \n\
+psubusb %5, %%mm6 # Y -= 16 \n\
movq %%mm6, %%mm7 # Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 \n\
-pand mmx_00ffw"G", %%mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 \n\
+pand %6, %%mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0 \n\
psrlw $8, %%mm7 # get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 \n\
psllw $3, %%mm6 # Promote precision \n\
psllw $3, %%mm7 # Promote precision \n\
-pmulhw mmx_Y_coeff"G", %%mm6 # Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 \n\
-pmulhw mmx_Y_coeff"G", %%mm7 # Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 \n\
+pmulhw %7, %%mm6 # Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 \n\
+pmulhw %7, %%mm7 # Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 \n\
"
/*
@@ -168,14 +167,14 @@ punpcklbw %%mm5, %%mm2 # G7 G6 G5 G4 G3 G2 G1 G0 \n\
#define MMX_YUV_GRAY " \n\
# convert the luma part \n\
-psubusb mmx_10w"G", %%mm6 \n\
+psubusb %5, %%mm6 \n\
movq %%mm6, %%mm7 \n\
-pand mmx_00ffw"G", %%mm6 \n\
+pand %6, %%mm6 \n\
psrlw $8, %%mm7 \n\
psllw $3, %%mm6 \n\
psllw $3, %%mm7 \n\
-pmulhw mmx_Y_coeff"G", %%mm6 \n\
-pmulhw mmx_Y_coeff"G", %%mm7 \n\
+pmulhw %7, %%mm6 \n\
+pmulhw %7, %%mm7 \n\
packuswb %%mm6, %%mm6 \n\
packuswb %%mm7, %%mm7 \n\
punpcklbw %%mm7, %%mm6 \n\
@@ -183,8 +182,8 @@ punpcklbw %%mm7, %%mm6 \n\
#define MMX_UNPACK_16_GRAY " \n\
movq %%mm6, %%mm5 \n\
-pand mmx_mask_f8"G", %%mm6 \n\
-pand mmx_mask_fc"G", %%mm5 \n\
+pand %12, %%mm6 \n\
+pand %13, %%mm5 \n\
movq %%mm6, %%mm7 \n\
psrlw $3, %%mm7 \n\
pxor %%mm3, %%mm3 \n\
@@ -213,10 +212,10 @@ movq %%mm2, 8(%3) \n\
#define MMX_UNPACK_15 " \n\
# mask unneeded bits off \n\
-pand mmx_mask_f8"G", %%mm0 # b7b6b5b4 b3______ b7b6b5b4 b3______ \n\
+pand %12, %%mm0 # b7b6b5b4 b3______ b7b6b5b4 b3______ \n\
psrlw $3,%%mm0 # ______b7 b6b5b4b3 ______b7 b6b5b4b3 \n\
-pand mmx_mask_f8"G", %%mm2 # g7g6g5g4 g3______ g7g6g5g4 g3______ \n\
-pand mmx_mask_f8"G", %%mm1 # r7r6r5r4 r3______ r7r6r5r4 r3______ \n\
+pand %12, %%mm2 # g7g6g5g4 g3______ g7g6g5g4 g3______ \n\
+pand %12, %%mm1 # r7r6r5r4 r3______ r7r6r5r4 r3______ \n\
psrlw $1,%%mm1 # __r7r6r5 r4r3____ __r7r6r5 r4r3____ \n\
pxor %%mm4, %%mm4 # zero mm4 \n\
movq %%mm0, %%mm5 # Copy B7-B0 \n\
@@ -249,9 +248,9 @@ movq %%mm5, 8(%3) # store pixel 4-7 \n\
#define MMX_UNPACK_16 " \n\
# mask unneeded bits off \n\
-pand mmx_mask_f8"G", %%mm0 # b7b6b5b4 b3______ b7b6b5b4 b3______ \n\
-pand mmx_mask_fc"G", %%mm2 # g7g6g5g4 g3g2____ g7g6g5g4 g3g2____ \n\
-pand mmx_mask_f8"G", %%mm1 # r7r6r5r4 r3______ r7r6r5r4 r3______ \n\
+pand %12, %%mm0 # b7b6b5b4 b3______ b7b6b5b4 b3______ \n\
+pand %13, %%mm2 # g7g6g5g4 g3g2____ g7g6g5g4 g3g2____ \n\
+pand %12, %%mm1 # r7r6r5r4 r3______ r7r6r5r4 r3______ \n\
psrlw $3,%%mm0 # ______b7 b6b5b4b3 ______b7 b6b5b4b3 \n\
pxor %%mm4, %%mm4 # zero mm4 \n\
movq %%mm0, %%mm5 # Copy B7-B0 \n\
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