diff options
Diffstat (limited to 'system/mmx/pixel_conv_hor_s16.s')
| -rw-r--r-- | system/mmx/pixel_conv_hor_s16.s | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/system/mmx/pixel_conv_hor_s16.s b/system/mmx/pixel_conv_hor_s16.s deleted file mode 100644 index e90a692..0000000 --- a/system/mmx/pixel_conv_hor_s16.s +++ /dev/null @@ -1,134 +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. -# - # intermediate function - - # input in register: - # %mm0: left 4 pixels - # %mm1: middle 4 pixels - # %mm2: right 4 pixels - - # %mm5: left 4 pixel masks - # %mm6: middle 4 pixel masks - # %mm7: right 4 pixel masks - - # return in register: - # %mm0: middle 4 pixels result - - - .conv_hor_4_pixels: - .align 16 - - # compute quadruplet - - # get left pixels - psrlq $48, %mm0 # shift word 3 to byte 0 - movq %mm1, %mm4 - psllq $16, %mm4 # shift word 0,1,2 to 1,2,3 - por %mm4, %mm0 # combine - pmulhw %mm5, %mm0 - psllw $1, %mm0 - - - # get middle pixels - movq %mm1, %mm4 - pmulhw %mm6, %mm4 - psllw $1, %mm4 - paddsw %mm4, %mm0 - - - # get right pixels - movq %mm2, %mm3 - psllq $48, %mm3 # shift word 0 to word 3 - movq %mm1, %mm4 - psrlq $16, %mm4 # shift word 1,2,3 to 0,1,2 - por %mm4, %mm3 # combine - pmulhw %mm7, %mm3 - psllw $1, %mm3 - paddsw %mm3, %mm0 # accumulate - - ret - -.globl pixel_conv_hor_s16 -.type pixel_conv_hor_s16,@function - - -# pixel_conv_hor_s16(short int *pixel_array, int nb_4_pixel_vectors, short int border[4], short int mask[12]) -# horizontal unsigned pixel conv (1/4 1/2 1/4) not tested -# NOT TESTED - - -pixel_conv_hor_s16: - - - pushl %ebp - movl %esp, %ebp - push %esi - push %edi - - movl 8(%ebp), %esi # pixel array offset - movl 12(%ebp), %ecx # nb of 8 pixel vectors in a row (at least 2) - - movl 20(%ebp), %edi # mask vector - movq (%edi), %mm5 - movq 8(%edi), %mm6 - movq 16(%edi), %mm7 - - movl 16(%ebp), %edi # boundary pixel vector - - - - movq (%edi), %mm0 # init regs (left edge, so mm0 is zero) - movq (%esi), %mm1 - movq 8(%esi), %mm2 - - decl %ecx # loop has 2 terminator stubs - decl %ecx # todo: handle if ecx < 3 - - jmp .conv_line_loop - - - .align 16 - .conv_line_loop: - call .conv_hor_4_pixels # compute conv - movq %mm0, (%esi) # store result - movq %mm1, %mm0 # mm0 <- prev (%esi) - movq %mm2, %mm1 # mm1 <- 8(%esi) - movq 16(%esi), %mm2 # mm2 <- 16(%esi) - - addl $8, %esi # increase pointer - decl %ecx - jnz .conv_line_loop - - call .conv_hor_4_pixels # compute conv - movq %mm0, (%esi) # store result - movq %mm1, %mm0 # mm0 <- prev (%esi) - movq %mm2, %mm1 # mm1 <- 8(%esi) - movq (%edi), %mm2 # mm2 <- border - - call .conv_hor_4_pixels # compute last vector - movq %mm0, 8(%esi) # store it - - emms - - pop %edi - pop %esi - leave - ret - - - |