diff options
Diffstat (limited to 'system/mmx/pixel_unpack_u8s16.s')
| -rw-r--r-- | system/mmx/pixel_unpack_u8s16.s | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/system/mmx/pixel_unpack_u8s16.s b/system/mmx/pixel_unpack_u8s16.s deleted file mode 100644 index 0fc14c2..0000000 --- a/system/mmx/pixel_unpack_u8s16.s +++ /dev/null @@ -1,113 +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_unpack_u8s16_y -.type pixel_unpack_u8s16_y,@function - -# mmx rgba pixel gain -# void pixel_unpack_u8s16_y(char *input, char *output, int32 nb_pixels_div8) - -pixel_unpack_u8s16_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 - - movl 8(%ebp), %esi # input uint8 pixel array - movl 12(%ebp), %edi # output sint16 pixel array - movl 16(%ebp), %ecx # nb of elements div 8 - - - .align 16 - .loop_unpack_y: - - movq (%esi), %mm5 # load 8 pixels from memory - pxor %mm0, %mm0 # zero mm0 - mm3 - pxor %mm1, %mm1 - punpcklbw %mm5, %mm0 # unpack 1st 4 pixels - punpckhbw %mm5, %mm1 # unpack 2nd 4 pixles - psrlw $0x1, %mm0 # shift right to clear sign bit 9.7 - psrlw $0x1, %mm1 -# pmulhw %mm7, %mm0 # apply gain -# pmulhw %mm7, %mm1 -# paddsw %mm0, %mm0 # correct factor 2 -# paddsw %mm1, %mm1 - movq %mm0, (%edi) # store - movq %mm1, 8(%edi) - - addl $8, %esi # increment source pointer - addl $16, %edi # increment dest pointer - decl %ecx - jnz .loop_unpack_y # loop - - emms - - pop %edi - pop %esi - leave - ret - -.globl pixel_unpack_u8s16_uv -.type pixel_unpack_u8s16_uv,@function -pixel_unpack_u8s16_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 # input uint8 pixel array - movl 12(%ebp), %edi # output sint16 pixel array - movl 16(%ebp), %ecx # nb of elements div 8 - - pcmpeqw %mm6, %mm6 - psllw $15, %mm6 - - .align 16 - .loop_unpack_uv: - - movq (%esi), %mm5 # load 8 pixels from memory - pxor %mm0, %mm0 # zero mm0 - mm3 - pxor %mm1, %mm1 - punpcklbw %mm5, %mm0 # unpack 1st 4 pixels - punpckhbw %mm5, %mm1 # unpack 2nd 4 pixles - pxor %mm6, %mm0 # flip sign bit (Cr and Cb are ofset by 128) - pxor %mm6, %mm1 -# pmulhw %mm7, %mm0 # apply gain -# pmulhw %mm7, %mm1 -# paddsw %mm0, %mm0 # correct factor 2 -# paddsw %mm1, %mm1 - movq %mm0, (%edi) # store - movq %mm1, 8(%edi) - - addl $8, %esi # increment source pointer - addl $16, %edi # increment dest pointer - decl %ecx - jnz .loop_unpack_uv # loop - - emms - - pop %edi - pop %esi - leave - ret - |