diff options
Diffstat (limited to 'system/mmx/pixel_pack_s16u8.s')
| -rw-r--r-- | system/mmx/pixel_pack_s16u8.s | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/system/mmx/pixel_pack_s16u8.s b/system/mmx/pixel_pack_s16u8.s deleted file mode 100644 index 57df702..0000000 --- a/system/mmx/pixel_pack_s16u8.s +++ /dev/null @@ -1,126 +0,0 @@ -# Pure Data Packet mmx routine. -# Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> -# -# This program 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. -# -# This program 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 this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -# -.globl pixel_pack_s16u8_y -.type pixel_pack_s16u8_y,@function - -# mmx rgba pixel gain -# void pixel_pack_s16u8_y(int *input, int *output, int nb_8pixel_vectors) - -pixel_pack_s16u8_y: - pushl %ebp - movl %esp, %ebp - push %esi - push %edi - -# movl 20(%ebp), %edi # int16[4] array of gains -# movq (%edi), %mm7 # get gain array -# psllw $1, %mm7 # adjust for shifted sign bit - - movl 8(%ebp), %esi # input array - movl 12(%ebp), %edi # output array - movl 16(%ebp), %ecx # pixel count - - pxor %mm6, %mm6 - - .align 16 - .loop_pack_y: - -# prefetch 128(%esi) - movq (%esi), %mm0 # load 4 pixels from memory -# pmulhw %mm7, %mm0 # apply gain - movq 8(%esi), %mm1 # load 4 pixels from memory -# pmulhw %mm7, %mm1 # apply gain - -# movq %mm0, %mm2 -# pcmpgtw %mm6, %mm2 # mm2 > 0 ? 0xffff : 0 -# pand %mm2, %mm0 - -# movq %mm1, %mm3 -# pcmpgtw %mm6, %mm3 # mm3 > 0 ? 0xffff : 0 -# pand %mm3, %mm1 - -# psllw $1, %mm0 # shift out sign bit -# psllw $1, %mm1 # shift out sign bit - - psraw $7, %mm0 # shift to lsb - psraw $7, %mm1 # shift to lsb - - packuswb %mm1, %mm0 # pack & saturate to 8bit vector - movq %mm0, (%edi) # store result in memory - - addl $16, %esi # increment source pointer - addl $8, %edi # increment dest pointer - decl %ecx - jnz .loop_pack_y # loop - - emms - - pop %edi - pop %esi - leave - ret - -.globl pixel_pack_s16u8_uv -.type pixel_pack_s16u8_uv,@function - -pixel_pack_s16u8_uv: - pushl %ebp - movl %esp, %ebp - push %esi - push %edi - -# movl 20(%ebp), %edi # int16[4] array of gains -# movq (%edi), %mm7 # get gain array - movl 8(%ebp), %esi # pixel array offset - movl 12(%ebp), %edi # nb of elements - movl 16(%ebp), %ecx # pixel count - - pcmpeqw %mm6, %mm6 - psllw $15, %mm6 - movq %mm6, %mm5 - psrlw $8, %mm5 - por %mm5, %mm6 # mm6 <- 8 times 0x80 - - .align 16 - .loop_pack_uv: - -# prefetch 128(%esi) - movq (%esi), %mm0 # load 4 pixels from memory -# pmulhw %mm7, %mm0 # apply gain - movq 8(%esi), %mm1 # load 4 pixels from memory -# pmulhw %mm7, %mm1 # apply gain - - psraw $8, %mm0 # shift to msb - psraw $8, %mm1 - - packsswb %mm1, %mm0 # pack & saturate to 8bit vector - pxor %mm6, %mm0 # flip sign bits - movq %mm0, (%edi) # store result in memory - - addl $16, %esi # increment source pointer - addl $8, %edi # increment dest pointer - decl %ecx - jnz .loop_pack_uv # loop - - emms - - pop %edi - pop %esi - leave - ret - |