Merge swscale bloatup

This will be cleaned up in the next merge

Authorship / merged commits:
commit f668afd4896ee65683619b6f165dda4cdd46766f
Author: Janne Grunau <janne-libav@jannau.net>
Date:   Fri Apr 15 09:12:34 2011 +0200

    swscale: fix "ISO C90 forbids mixed declarations and code" warning

    only hit with --enable-runtime-cpudetect

commit 7f2ae5c7af374dfe254195a9375974a2ff9395a7
Author: Janne Grunau <janne-libav@jannau.net>
Date:   Fri Apr 15 02:09:44 2011 +0200

    swscale: fix compilation with --enable-runtime-cpudetect

commit b6cad3df822969b31bb93eaf677e52a72416bc97
Author: Janne Grunau <janne-libav@jannau.net>
Date:   Fri Apr 15 00:31:04 2011 +0200

    swscale: correct include path to fix ppc altivec build

commit 6216fc70b74e01a5272085329aa92f5ac797f9cf
Author: Luca Barbato <lu_zero@gentoo.org>
Date:   Thu Apr 14 22:03:45 2011 +0200

    swscale: simplify rgb2rgb templating

    MMX is always built. Drop the ifdefs

commit 33a0421bbaa64f4e9c3d852b7f225ede8dad1388
Author: Josh Allmann <joshua.allmann@gmail.com>
Date:   Wed Apr 13 20:57:32 2011 +0200

    swscale: simplify initialization code

    Simplify the fallthrough case when no accelerated functions
    can be initialized.

commit 735bf1951171a1e0ee4292e84a1b1beac45dd0ab
Author: Josh Allmann <joshua.allmann@gmail.com>
Date:   Wed Apr 13 20:57:31 2011 +0200

    swscale: further cleanup swscale.c

    Move x86-specific constants out of swscale.c

commit 86330b4c9258d5e583c0db033d1e68f46443307c
Author: Luca Barbato <lu_zero@gentoo.org>
Date:   Wed Apr 13 20:57:30 2011 +0200

    swscale: partially move the arch specific code left

    PPC and x86 code is split off from swscale_template.c. Lots of code is
    still duplicated and should be removed later.

    Again uniformize the init system to be more similar to the dsputil one.

    Unset h*scale_fast in the x86 init in order to make the output
    consistent with the previous status. Thanks to Josh for spotting it.

commit c0038328830d7b341c28d7c99b0236a33617fd21
Author: Luca Barbato <lu_zero@gentoo.org>
Date:   Wed Apr 13 20:57:29 2011 +0200

    swscale: move away x86 specific code from rgb2rgb

    Keep only the plain C code in the main rgb2rgb.c and move the x86
    specific optimizations to x86/rgb2rgb.c
    Change the initialization pattern a little so some of it can be
    factorized to behave more like dsputils.

Conflicts:
	libswscale/rgb2rgb.c
	libswscale/swscale_template.c

1 files changed, 3 insertions, 92 deletions

diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index adc5d59c8c..0e770e2444 100644
--- a/libswscale/rgb2rgb.c
+++ b/libswscale/rgb2rgb.c
@@ -24,7 +24,6 @@
  */
 #include <inttypes.h>
 #include "config.h"
-#include "libavutil/x86_cpu.h"
 #include "libavutil/bswap.h"
 #include "rgb2rgb.h"
 #include "swscale.h"
@@ -95,45 +94,6 @@ void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t
                      long width, long height,
                      long lumStride, long chromStride, long srcStride);
 
-
-#if ARCH_X86
-DECLARE_ASM_CONST(8, uint64_t, mmx_ff)       = 0x00000000000000FFULL;
-DECLARE_ASM_CONST(8, uint64_t, mmx_null)     = 0x0000000000000000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mmx_one)      = 0xFFFFFFFFFFFFFFFFULL;
-DECLARE_ASM_CONST(8, uint64_t, mask32b)      = 0x000000FF000000FFULL;
-DECLARE_ASM_CONST(8, uint64_t, mask32g)      = 0x0000FF000000FF00ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask32r)      = 0x00FF000000FF0000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask32a)      = 0xFF000000FF000000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask32)       = 0x00FFFFFF00FFFFFFULL;
-DECLARE_ASM_CONST(8, uint64_t, mask3216br)   = 0x00F800F800F800F8ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask3216g)    = 0x0000FC000000FC00ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask3215g)    = 0x0000F8000000F800ULL;
-DECLARE_ASM_CONST(8, uint64_t, mul3216)      = 0x2000000420000004ULL;
-DECLARE_ASM_CONST(8, uint64_t, mul3215)      = 0x2000000820000008ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24b)      = 0x00FF0000FF0000FFULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24g)      = 0xFF0000FF0000FF00ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24r)      = 0x0000FF0000FF0000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24l)      = 0x0000000000FFFFFFULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24h)      = 0x0000FFFFFF000000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24hh)     = 0xffff000000000000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24hhh)    = 0xffffffff00000000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask24hhhh)   = 0xffffffffffff0000ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask15b)      = 0x001F001F001F001FULL; /* 00000000 00011111  xxB */
-DECLARE_ASM_CONST(8, uint64_t, mask15rg)     = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000  RGx */
-DECLARE_ASM_CONST(8, uint64_t, mask15s)      = 0xFFE0FFE0FFE0FFE0ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask15g)      = 0x03E003E003E003E0ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask15r)      = 0x7C007C007C007C00ULL;
-#define mask16b mask15b
-DECLARE_ASM_CONST(8, uint64_t, mask16g)      = 0x07E007E007E007E0ULL;
-DECLARE_ASM_CONST(8, uint64_t, mask16r)      = 0xF800F800F800F800ULL;
-DECLARE_ASM_CONST(8, uint64_t, red_16mask)   = 0x0000f8000000f800ULL;
-DECLARE_ASM_CONST(8, uint64_t, green_16mask) = 0x000007e0000007e0ULL;
-DECLARE_ASM_CONST(8, uint64_t, blue_16mask)  = 0x0000001f0000001fULL;
-DECLARE_ASM_CONST(8, uint64_t, red_15mask)   = 0x00007c0000007c00ULL;
-DECLARE_ASM_CONST(8, uint64_t, green_15mask) = 0x000003e0000003e0ULL;
-DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
-#endif /* ARCH_X86 */
-
 #define RGB2YUV_SHIFT 8
 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
@@ -145,50 +105,9 @@ DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
 
-//Note: We have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW + MMX2 one.
 //plain C versions
-#define COMPILE_TEMPLATE_MMX 0
-#define COMPILE_TEMPLATE_MMX2 0
-#define COMPILE_TEMPLATE_AMD3DNOW 0
-#define COMPILE_TEMPLATE_SSE2 0
-#define RENAME(a) a ## _C
-#include "rgb2rgb_template.c"
-
-#if ARCH_X86
-
-//MMX versions
-#undef RENAME
-#undef COMPILE_TEMPLATE_MMX
-#define COMPILE_TEMPLATE_MMX 1
-#define RENAME(a) a ## _MMX
-#include "rgb2rgb_template.c"
-
-//MMX2 versions
-#undef RENAME
-#undef COMPILE_TEMPLATE_MMX2
-#define COMPILE_TEMPLATE_MMX2 1
-#define RENAME(a) a ## _MMX2
-#include "rgb2rgb_template.c"
-
-//SSE2 versions
-#undef RENAME
-#undef COMPILE_TEMPLATE_SSE2
-#define COMPILE_TEMPLATE_SSE2 1
-#define RENAME(a) a ## _SSE2
-#include "rgb2rgb_template.c"
-
-//3DNOW versions
-#undef RENAME
-#undef COMPILE_TEMPLATE_MMX2
-#undef COMPILE_TEMPLATE_SSE2
-#undef COMPILE_TEMPLATE_AMD3DNOW
-#define COMPILE_TEMPLATE_MMX2 0
-#define COMPILE_TEMPLATE_SSE2 1
-#define COMPILE_TEMPLATE_AMD3DNOW 1
-#define RENAME(a) a ## _3DNOW
 #include "rgb2rgb_template.c"
 
-#endif //ARCH_X86 || ARCH_X86_64
 
 /*
  RGB15->RGB16 original by Strepto/Astral
@@ -199,18 +118,10 @@ DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
 
 void sws_rgb2rgb_init(int flags)
 {
-#if HAVE_SSE2 || HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX
-    if (flags & SWS_CPU_CAPS_SSE2)
-        rgb2rgb_init_SSE2();
-    else if (flags & SWS_CPU_CAPS_MMX2)
-        rgb2rgb_init_MMX2();
-    else if (flags & SWS_CPU_CAPS_3DNOW)
-        rgb2rgb_init_3DNOW();
-    else if (flags & SWS_CPU_CAPS_MMX)
-        rgb2rgb_init_MMX();
-    else
+    rgb2rgb_init_c();
+#if HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX
+    rgb2rgb_init_x86(flags);
 #endif /* HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX */
-        rgb2rgb_init_C();
 }
 
 #if LIBSWSCALE_VERSION_MAJOR < 1