Add a copy of libswscale into the branch instead of using svn:external.

This will allow merging some changes from trunk.


Originally committed as revision 18488 to svn://svn.ffmpeg.org/ffmpeg/branches/0.5

1 files changed, 442 insertions, 0 deletions

diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
new file mode 100644
index 0000000000..ad69265c37
--- /dev/null
+++ b/libswscale/rgb2rgb.c
@@ -0,0 +1,442 @@
+/*
+ * software RGB to RGB converter
+ * pluralize by software PAL8 to RGB converter
+ *              software YUV to YUV converter
+ *              software YUV to RGB converter
+ * Written by Nick Kurshev.
+ * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * The C code (not assembly, MMX, ...) of this file can be used
+ * under the LGPL license.
+ */
+#include <inttypes.h>
+#include "config.h"
+#include "libavutil/x86_cpu.h"
+#include "libavutil/bswap.h"
+#include "rgb2rgb.h"
+#include "swscale.h"
+#include "swscale_internal.h"
+
+#define FAST_BGR2YV12 // use 7-bit instead of 15-bit coefficients
+
+void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb32to16)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb32to15)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb15to16)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb15to32)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb16to15)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb16to32)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb24to16)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb24to15)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb32tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
+void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
+
+void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
+                   long width, long height,
+                   long lumStride, long chromStride, long dstStride);
+void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
+                   long width, long height,
+                   long lumStride, long chromStride, long dstStride);
+void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
+                      long width, long height,
+                      long lumStride, long chromStride, long dstStride);
+void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
+                      long width, long height,
+                      long lumStride, long chromStride, long dstStride);
+void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                   long width, long height,
+                   long lumStride, long chromStride, long srcStride);
+void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                    long width, long height,
+                    long lumStride, long chromStride, long srcStride);
+void (*planar2x)(const uint8_t *src, uint8_t *dst, long width, long height,
+                 long srcStride, long dstStride);
+void (*interleaveBytes)(uint8_t *src1, uint8_t *src2, uint8_t *dst,
+                        long width, long height, long src1Stride,
+                        long src2Stride, long dstStride);
+void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
+                    uint8_t *dst1, uint8_t *dst2,
+                    long width, long height,
+                    long srcStride1, long srcStride2,
+                    long dstStride1, long dstStride2);
+void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
+                     uint8_t *dst,
+                     long width, long height,
+                     long srcStride1, long srcStride2,
+                     long srcStride3, long dstStride);
+
+#if ARCH_X86 && CONFIG_GPL
+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))
+#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
+#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
+#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
+#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
+#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
+#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
+#undef HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_AMD3DNOW
+#undef HAVE_SSE2
+#define HAVE_MMX 0
+#define HAVE_MMX2 0
+#define HAVE_AMD3DNOW 0
+#define HAVE_SSE2 0
+#define RENAME(a) a ## _C
+#include "rgb2rgb_template.c"
+
+#if ARCH_X86 && CONFIG_GPL
+
+//MMX versions
+#undef RENAME
+#undef HAVE_MMX
+#define HAVE_MMX 1
+#define RENAME(a) a ## _MMX
+#include "rgb2rgb_template.c"
+
+//MMX2 versions
+#undef RENAME
+#undef HAVE_MMX2
+#define HAVE_MMX2 1
+#define RENAME(a) a ## _MMX2
+#include "rgb2rgb_template.c"
+
+//3DNOW versions
+#undef RENAME
+#undef HAVE_MMX2
+#undef HAVE_AMD3DNOW
+#define HAVE_MMX2 0
+#define HAVE_AMD3DNOW 1
+#define RENAME(a) a ## _3DNOW
+#include "rgb2rgb_template.c"
+
+#endif //ARCH_X86 || ARCH_X86_64
+
+/*
+ RGB15->RGB16 original by Strepto/Astral
+ ported to gcc & bugfixed : A'rpi
+ MMX2, 3DNOW optimization by Nick Kurshev
+ 32-bit C version, and and&add trick by Michael Niedermayer
+*/
+
+void sws_rgb2rgb_init(int flags){
+#if (HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX)  && CONFIG_GPL
+    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
+#endif /* HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX */
+        rgb2rgb_init_C();
+}
+
+/**
+ * Convert the palette to the same packet 32-bit format as the palette
+ */
+void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
+{
+    long i;
+
+    for (i=0; i<num_pixels; i++)
+        ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
+}
+
+/**
+ * Palette format: ABCD -> dst format: ABC
+ */
+void palette8topacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
+{
+    long i;
+
+    for (i=0; i<num_pixels; i++)
+    {
+        //FIXME slow?
+        dst[0]= palette[src[i]*4+0];
+        dst[1]= palette[src[i]*4+1];
+        dst[2]= palette[src[i]*4+2];
+        dst+= 3;
+    }
+}
+
+/**
+ * Palette is assumed to contain BGR16, see rgb32to16 to convert the palette.
+ */
+void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
+{
+    long i;
+    for (i=0; i<num_pixels; i++)
+        ((uint16_t *)dst)[i] = ((const uint16_t *)palette)[src[i]];
+}
+void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
+{
+    long i;
+    for (i=0; i<num_pixels; i++)
+        ((uint16_t *)dst)[i] = bswap_16(((const uint16_t *)palette)[src[i]]);
+}
+
+/**
+ * Palette is assumed to contain BGR15, see rgb32to15 to convert the palette.
+ */
+void palette8torgb15(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
+{
+    long i;
+    for (i=0; i<num_pixels; i++)
+        ((uint16_t *)dst)[i] = ((const uint16_t *)palette)[src[i]];
+}
+void palette8tobgr15(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
+{
+    long i;
+    for (i=0; i<num_pixels; i++)
+        ((uint16_t *)dst)[i] = bswap_16(((const uint16_t *)palette)[src[i]]);
+}
+
+void rgb32to24(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    long num_pixels = src_size >> 2;
+    for (i=0; i<num_pixels; i++)
+    {
+        #ifdef WORDS_BIGENDIAN
+            /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
+            dst[3*i + 0] = src[4*i + 1];
+            dst[3*i + 1] = src[4*i + 2];
+            dst[3*i + 2] = src[4*i + 3];
+        #else
+            dst[3*i + 0] = src[4*i + 2];
+            dst[3*i + 1] = src[4*i + 1];
+            dst[3*i + 2] = src[4*i + 0];
+        #endif
+    }
+}
+
+void rgb24to32(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    for (i=0; 3*i<src_size; i++)
+    {
+        #ifdef WORDS_BIGENDIAN
+            /* RGB24 (= R,G,B) -> BGR32 (= A,R,G,B) */
+            dst[4*i + 0] = 255;
+            dst[4*i + 1] = src[3*i + 0];
+            dst[4*i + 2] = src[3*i + 1];
+            dst[4*i + 3] = src[3*i + 2];
+        #else
+            dst[4*i + 0] = src[3*i + 2];
+            dst[4*i + 1] = src[3*i + 1];
+            dst[4*i + 2] = src[3*i + 0];
+            dst[4*i + 3] = 255;
+        #endif
+    }
+}
+
+void rgb16tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    const uint16_t *end;
+    uint8_t *d = dst;
+    const uint16_t *s = (const uint16_t *)src;
+    end = s + src_size/2;
+    while (s < end)
+    {
+        register uint16_t bgr;
+        bgr = *s++;
+        #ifdef WORDS_BIGENDIAN
+            *d++ = 255;
+            *d++ = (bgr&0x1F)<<3;
+            *d++ = (bgr&0x7E0)>>3;
+            *d++ = (bgr&0xF800)>>8;
+        #else
+            *d++ = (bgr&0xF800)>>8;
+            *d++ = (bgr&0x7E0)>>3;
+            *d++ = (bgr&0x1F)<<3;
+            *d++ = 255;
+        #endif
+    }
+}
+
+void rgb16to24(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    const uint16_t *end;
+    uint8_t *d = dst;
+    const uint16_t *s = (const uint16_t *)src;
+    end = s + src_size/2;
+    while (s < end)
+    {
+        register uint16_t bgr;
+        bgr = *s++;
+        *d++ = (bgr&0xF800)>>8;
+        *d++ = (bgr&0x7E0)>>3;
+        *d++ = (bgr&0x1F)<<3;
+    }
+}
+
+void rgb16tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    long num_pixels = src_size >> 1;
+
+    for (i=0; i<num_pixels; i++)
+    {
+        unsigned rgb = ((const uint16_t*)src)[i];
+        ((uint16_t*)dst)[i] = (rgb>>11) | (rgb&0x7E0) | (rgb<<11);
+    }
+}
+
+void rgb16tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    long num_pixels = src_size >> 1;
+
+    for (i=0; i<num_pixels; i++)
+    {
+        unsigned rgb = ((const uint16_t*)src)[i];
+        ((uint16_t*)dst)[i] = (rgb>>11) | ((rgb&0x7C0)>>1) | ((rgb&0x1F)<<10);
+    }
+}
+
+void rgb15tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    const uint16_t *end;
+    uint8_t *d = dst;
+    const uint16_t *s = (const uint16_t *)src;
+    end = s + src_size/2;
+    while (s < end)
+    {
+        register uint16_t bgr;
+        bgr = *s++;
+        #ifdef WORDS_BIGENDIAN
+            *d++ = 255;
+            *d++ = (bgr&0x1F)<<3;
+            *d++ = (bgr&0x3E0)>>2;
+            *d++ = (bgr&0x7C00)>>7;
+        #else
+            *d++ = (bgr&0x7C00)>>7;
+            *d++ = (bgr&0x3E0)>>2;
+            *d++ = (bgr&0x1F)<<3;
+            *d++ = 255;
+        #endif
+    }
+}
+
+void rgb15to24(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    const uint16_t *end;
+    uint8_t *d = dst;
+    const uint16_t *s = (const uint16_t *)src;
+    end = s + src_size/2;
+    while (s < end)
+    {
+        register uint16_t bgr;
+        bgr = *s++;
+        *d++ = (bgr&0x7C00)>>7;
+        *d++ = (bgr&0x3E0)>>2;
+        *d++ = (bgr&0x1F)<<3;
+    }
+}
+
+void rgb15tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    long num_pixels = src_size >> 1;
+
+    for (i=0; i<num_pixels; i++)
+    {
+        unsigned rgb = ((const uint16_t*)src)[i];
+        ((uint16_t*)dst)[i] = ((rgb&0x7C00)>>10) | ((rgb&0x3E0)<<1) | (rgb<<11);
+    }
+}
+
+void rgb15tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    long num_pixels = src_size >> 1;
+
+    for (i=0; i<num_pixels; i++)
+    {
+        unsigned br;
+        unsigned rgb = ((const uint16_t*)src)[i];
+        br = rgb&0x7c1F;
+        ((uint16_t*)dst)[i] = (br>>10) | (rgb&0x3E0) | (br<<10);
+    }
+}
+
+void bgr8torgb8(const uint8_t *src, uint8_t *dst, long src_size)
+{
+    long i;
+    long num_pixels = src_size;
+    for (i=0; i<num_pixels; i++)
+    {
+        unsigned b,g,r;
+        register uint8_t rgb;
+        rgb = src[i];
+        r = (rgb&0x07);
+        g = (rgb&0x38)>>3;
+        b = (rgb&0xC0)>>6;
+        dst[i] = ((b<<1)&0x07) | ((g&0x07)<<3) | ((r&0x03)<<6);
+    }
+}