adding ffmpeg specific version

1 files changed, 125 insertions, 0 deletions

diff --git a/ffmpeg1/libavcodec/arm/dsputil_arm.S b/ffmpeg1/libavcodec/arm/dsputil_arm.S
new file mode 100644
index 0000000..586a833
--- /dev/null
+++ b/ffmpeg1/libavcodec/arm/dsputil_arm.S
@@ -0,0 +1,125 @@
+@
+@ ARMv4 optimized DSP utils
+@ Copyright (c) 2004 AGAWA Koji <i (AT) atty (DOT) jp>
+@
+@ This file is part of FFmpeg.
+@
+@ FFmpeg is free software; you can redistribute it and/or
+@ modify it under the terms of the GNU Lesser General Public
+@ License as published by the Free Software Foundation; either
+@ version 2.1 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
+@ Lesser General Public License for more details.
+@
+@ You should have received a copy of the GNU Lesser 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
+@
+
+#include "config.h"
+#include "libavutil/arm/asm.S"
+
+#if !HAVE_ARMV5TE_EXTERNAL
+#define pld @
+#endif
+
+        .align 5
+@ void ff_add_pixels_clamped_arm(int16_t *block, uint8_t *dest, int stride)
+function ff_add_pixels_clamped_arm, export=1
+        push            {r4-r10}
+        mov             r10, #8
+1:
+        ldr             r4,  [r1]               /* load dest */
+        /* block[0] and block[1]*/
+        ldrsh           r5,  [r0]
+        ldrsh           r7,  [r0, #2]
+        and             r6,  r4,  #0xFF
+        and             r8,  r4,  #0xFF00
+        add             r6,  r6,  r5
+        add             r8,  r7,  r8,  lsr #8
+        mvn             r5,  r5
+        mvn             r7,  r7
+        tst             r6,  #0x100
+        it              ne
+        movne           r6,  r5,  lsr #24
+        tst             r8,  #0x100
+        it              ne
+        movne           r8,  r7,  lsr #24
+        mov             r9,  r6
+        ldrsh           r5,  [r0, #4]           /* moved form [A] */
+        orr             r9,  r9,  r8,  lsl #8
+        /* block[2] and block[3] */
+        /* [A] */
+        ldrsh           r7,  [r0, #6]
+        and             r6,  r4,  #0xFF0000
+        and             r8,  r4,  #0xFF000000
+        add             r6,  r5,  r6,  lsr #16
+        add             r8,  r7,  r8,  lsr #24
+        mvn             r5,  r5
+        mvn             r7,  r7
+        tst             r6,  #0x100
+        it              ne
+        movne           r6,  r5,  lsr #24
+        tst             r8,  #0x100
+        it              ne
+        movne           r8,  r7,  lsr #24
+        orr             r9,  r9,  r6,  lsl #16
+        ldr             r4,  [r1, #4]           /* moved form [B] */
+        orr             r9,  r9,  r8,  lsl #24
+        /* store dest */
+        ldrsh           r5,  [r0, #8]           /* moved form [C] */
+        str             r9,  [r1]
+
+        /* load dest */
+        /* [B] */
+        /* block[4] and block[5] */
+        /* [C] */
+        ldrsh           r7,  [r0, #10]
+        and             r6,  r4,  #0xFF
+        and             r8,  r4,  #0xFF00
+        add             r6,  r6,  r5
+        add             r8,  r7,  r8,  lsr #8
+        mvn             r5,  r5
+        mvn             r7,  r7
+        tst             r6,  #0x100
+        it              ne
+        movne           r6,  r5,  lsr #24
+        tst             r8,  #0x100
+        it              ne
+        movne           r8,  r7,  lsr #24
+        mov             r9,  r6
+        ldrsh           r5,  [r0, #12]          /* moved from [D] */
+        orr             r9,  r9,  r8,  lsl #8
+        /* block[6] and block[7] */
+        /* [D] */
+        ldrsh           r7,  [r0, #14]
+        and             r6,  r4,  #0xFF0000
+        and             r8,  r4,  #0xFF000000
+        add             r6,  r5,  r6,  lsr #16
+        add             r8,  r7,  r8,  lsr #24
+        mvn             r5,  r5
+        mvn             r7,  r7
+        tst             r6,  #0x100
+        it              ne
+        movne           r6,  r5,  lsr #24
+        tst             r8,  #0x100
+        it              ne
+        movne           r8,  r7,  lsr #24
+        orr             r9,  r9,  r6,  lsl #16
+        add             r0,  r0,  #16           /* moved from [E] */
+        orr             r9,  r9,  r8,  lsl #24
+        subs            r10, r10, #1            /* moved from [F] */
+        /* store dest */
+        str             r9,  [r1, #4]
+
+        /* [E] */
+        /* [F] */
+        add             r1,  r1,  r2
+        bne             1b
+
+        pop             {r4-r10}
+        bx              lr
+endfunc