diff options
Diffstat (limited to 'system/mmx/pixel_randmix_s16.s')
| -rw-r--r-- | system/mmx/pixel_randmix_s16.s | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/system/mmx/pixel_randmix_s16.s b/system/mmx/pixel_randmix_s16.s deleted file mode 100644 index 44e1702..0000000 --- a/system/mmx/pixel_randmix_s16.s +++ /dev/null @@ -1,91 +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_randmix_s16 -.type pixel_randmix_s16,@function - -# mmx rgba pixel gain -# void pixel_randmix_s16(int *left, int *right, int nb_4pixel_vectors, short int random_seed[4], short int threshold[4]) - -pixel_randmix_s16: - pushl %ebp - movl %esp, %ebp - push %esi - push %edi - - movl 20(%ebp), %edi # int16[4] array of random seeds - movq (%edi), %mm6 - - movl 24(%ebp), %edi # int16[4] array of thresholds - movq (%edi), %mm7 - - movl 8(%ebp), %edi # left array - movl 12(%ebp), %esi # right array - movl 16(%ebp), %ecx # pixel count - - pcmpeqw %mm3, %mm3 - psrlw $15, %mm3 # get bit mask 4 times 0x0001 - - .align 16 - .loop_randmix: - -# prefetch 128(%esi) - movq (%esi), %mm1 # load right 4 pixels from memory - movq (%edi), %mm0 # load 4 left pixels from memory - - movq %mm6, %mm2 # get random vector - pcmpgtw %mm7, %mm2 # compare random vector with threshold - movq %mm2, %mm5 - - pand %mm0, %mm2 # get left array's components - pandn %mm1, %mm5 # get right array's components - por %mm2, %mm5 - - movq %mm5, (%edi) # store pixels - - movq %mm6, %mm4 # get random vector - psrlw $15, %mm4 # get first component - movq %mm6, %mm5 - psrlw $14, %mm5 # get second component - pxor %mm5, %mm4 - movq %mm6, %mm5 - psrlw $12, %mm5 # get third component - pxor %mm5, %mm4 - movq %mm6, %mm5 - psrlw $3, %mm5 # get forth component - pxor %mm5, %mm4 - - psllw $1, %mm6 # shift left original random vector - pand %mm3, %mm4 # isolate new bit - por %mm4, %mm6 # combine into new random vector - - addl $8, %esi - addl $8, %edi - decl %ecx - jnz .loop_randmix # loop - - - movl 20(%ebp), %edi # int16[4] array of random seeds - movq %mm6, (%edi) # store random seeds - - emms - - pop %edi - pop %esi - leave - ret - |