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Diffstat (limited to 'system/mmx/pixel_cascade_s16.s')
| -rw-r--r-- | system/mmx/pixel_cascade_s16.s | 330 |
1 files changed, 0 insertions, 330 deletions
diff --git a/system/mmx/pixel_cascade_s16.s b/system/mmx/pixel_cascade_s16.s deleted file mode 100644 index bf88d08..0000000 --- a/system/mmx/pixel_cascade_s16.s +++ /dev/null @@ -1,330 +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. -# - - - # TODO: COUPLED CASCADE SECOND ORDER SECTION - # - # s1[k] = ar * s1[k-1] + ai * s2[k-1] + x[k] - # s2[k] = ar * s2[k-1] - ai * s1[k-1] - # y[k] = c0 * x[k] + c1 * s1[k-1] + c2 * s2[k-1] - - - # MACRO: df2 - # - # computes a coupled cascade - # - # input: %mm0 == input - # %mm1 == state 1 - # %mm2 == state 2 - # (%esi) == cascade coefs (ar ai c0 c1 c2) in s0.15 - # output: %mm0 == output - # %mm1 == state 1 - # %mm2 == state 2 - - - .macro coupled - pmovq %mm1, %mm3 # mm3 == s1[k-1] - pmovq %mm1, %mm4 # mm4 == s1[k-1] - pmovq %mm2, %mm5 # mm5 == s2[k-1] - pmovq %mm2, %mm6 # mm5 == s2[k-1] - pmulhw (%esi), %mm1 # mm1 == s1[k-1] * ar - pmulhw 8(%esi), %mm3 # mm3 == s1[k-1] * ai - pmulhw 24(%esi), %mm4 # mm4 == s1[k-1] * c1 - pmulhw (%esi), %mm2 # mm2 == s2[k-1] * ar - pmulhw 8(%esi), %mm5 # mm5 == s2[k-1] * ai - pmulhw 32(%esi), %mm6 # mm6 == s2[k-1] * c2 - paddw %mm5, %mm1 # mm1 == s1[k-1] * ar + s2[k-1] * ai - psubw %mm3, %mm2 # mm2 == s2[k-1] * ar - s1[k-1] * ai == s2[k] - paddw %mm0, %mm1 # mm1 == s1[k] - pmulhw 16(%esi), %mm0 # mm0 == x[k] * c0 - paddw %mm6, %mm4 # mm4 == s1[k-1] * c1 + s2[k-1] * c2 - paddw %mm4, %mm0 # mm0 == y[k] - .endm - - - - - # in order to use the 4 line parallel cascade routine on horizontal - # lines, we need to reorder (rotate or transpose) the matrix, since - # images are scanline encoded, and we want to work in parallell - # on 4 lines. - # - # since the 4 lines are independent, it doesnt matter in which order - # the the vector elements are present. - # - # this allows us to use the same routine for left->right and right->left - # processing. - # - # some comments on the non-abelean group of square isometries consisting of - # (I) identity - # (H) horizontal axis mirror - # (V) vertical axis mirror - # (T) transpose (diagonal axis mirror) - # (A) antitranspose (antidiagonal axis mirror) - # (R1) 90deg anticlockwize rotation - # (R2) 180deg rotation - # (R3) 90deg clockwize rotation - # - # - # we basicly have two options: (R1,R3) or (T,A) - # we opt for T and A because they are self inverting, which improves locality - # - # use antitranspose for right to left an transpose - # for left to right (little endian) - - - # antitranspose 4x4 - - # input - # %mm3 == {d0 d1 d2 d3} - # %mm2 == {c0 c1 c2 c3} - # %mm1 == {b0 b1 b2 b3} - # %mm0 == {a0 a1 a2 a3} - - # output - # %mm3 == {a3 b3 c3 d3} - # %mm2 == {a2 b2 c2 d2} - # %mm1 == {a1 b1 c1 d1} - # %mm0 == {a0 b0 c0 d0} - - - .macro antitranspose_4x4: - movq %mm3, %mm4 - punpcklwd %mm1, %mm4 # mm4 <- {b2 d2 b3 d3} - movq %mm3, %mm5 - punpckhwd %mm1, %mm5 # mm5 <- {b0 d0 b1 d1} - - movq %mm2, %mm6 - punpcklwd %mm0, %mm6 # mm6 <- {a2 c2 a3 c3} - movq %mm2, %mm7 - punpckhwd %mm0, %mm7 # mm7 <- {a0 c0 a1 c1} - - movq %mm4, %mm3 - punpcklwd %mm6, %mm3 # mm3 <- {a3 b3 c3 d3} - movq %mm4, %mm2 - punpckhwd %mm6, %mm2 # mm2 <- {a2 b2 c2 d2} - - movq %mm5, %mm1 - punpcklwd %mm7, %mm1 # mm1 <- {a1 b1 c1 d1} - movq %mm5, %mm0 - punpckhwd %mm7, %mm0 # mm0 <- {a0 b0 c0 d0} - - .endm - - - # transpose 4x4 - - # input - # %mm3 == {d3 d2 d1 d0} - # %mm2 == {c3 c2 c1 c0} - # %mm1 == {b3 b2 b1 b0} - # %mm0 == {a3 a2 a1 a0} - - # output - # %mm3 == {d3 c3 b3 a3} - # %mm2 == {d2 c2 b2 a2} - # %mm1 == {d1 c1 b1 a1} - # %mm0 == {d0 c0 b0 a0} - - - .macro transpose_4x4: - movq %mm0, %mm4 - punpcklwd %mm2, %mm4 # mm4 <- {c1 a1 c0 a0} - movq %mm0, %mm5 - punpckhwd %mm2, %mm5 # mm5 <- {c3 a3 c2 a2} - - movq %mm1, %mm6 - punpcklwd %mm3, %mm6 # mm6 <- {d1 b1 d0 b0} - movq %mm1, %mm7 - punpckhwd %mm3, %mm7 # mm7 <- {d3 b3 d2 b2} - - movq %mm4, %mm0 - punpcklwd %mm6, %mm0 # mm0 <- {d0 c0 b0 a0} - movq %mm4, %mm1 - punpckhwd %mm6, %mm1 # mm1 <- {d1 c1 b1 a1} - - movq %mm5, %mm2 - punpcklwd %mm7, %mm2 # mm2 <- {d2 c2 b2 a2} - movq %mm5, %mm3 - punpckhwd %mm7, %mm3 # mm3 <- {d3 c3 b3 a3} - - .endm - -.globl pixel_cascade_vertb_s16 -.type pixel_cascade_vertb_s16,@function - - -# pixel_cascade_vertbr_s16(char *pixel_array, int nb_rows, int linewidth, short int coef[20], short int state[8]) - - -pixel_cascade_vertb_s16: - - - pushl %ebp - movl %esp, %ebp - push %ebx - push %esi - push %edi - - movl 8(%ebp), %ebx # pixel array offset - movl 12(%ebp), %ecx # nb of 4x4 pixblocks - movl 16(%ebp), %edx # line with - - movl 20(%ebp), %esi # coefs - movl 24(%ebp), %edi # state - - shll $1, %edx # short int addressing - subl %edx, %ebx - - movq 0(%edi), %mm1 # s1[k-1] - movq 8(%edi), %mm2 # s2[k-1] - .align 16 - .cascade_vertb_line_loop: - - movq (%ebx,%edx,1), %mm3 - movq %mm3, %mm0 - addl %edx, %ebx - coupled - movq %mm0, (%ebx) - - movq (%ebx,%edx,1), %mm3 - movq %mm3, %mm0 - addl %edx, %ebx - coupled - movq %mm0, (%ebx) - - movq (%ebx,%edx,1), %mm3 - movq %mm3, %mm0 - addl %edx, %ebx - coupled - movq %mm0, (%ebx) - - movq (%ebx,%edx,1), %mm3 - movq %mm3, %mm0 - addl %edx, %ebx - coupled - movq %mm0, (%ebx) - - decl %ecx - jnz .cascade_vertb_line_loop - - movq %mm1, 0(%edi) # s1[k-1] - movq %mm2, 8(%edi) # s2[k-1] - - emms - - pop %edi - pop %esi - pop %ebx - leave - ret - -.globl pixel_cascade_horlr_s16 -.type pixel_cascade_horlr_s16,@function - - -# pixel_cascade_hor_s16(char *pixel_array, int nb_rows, int linewidth, short int coef[20], short int state[8]) - - -pixel_cascade_horlr_s16: - - - pushl %ebp - movl %esp, %ebp - push %ebx - push %esi - push %edi - - movl 8(%ebp), %ebx # pixel array offset - movl 12(%ebp), %ecx # nb of 4x4 pixblocks - movl 16(%ebp), %edx # line with - - movl 20(%ebp), %esi # coefs - movl 24(%ebp), %edi # state - - shll $1, %edx # short int addressing - movl %edx, %eax - shll $1, %eax - addl %edx, %eax # eax = 3 * edx - - - .align 16 - .cascade_horlr_line_loop: - movq (%edi), %mm1 - movq 8(%edi), %mm2 - - movq (%ebx), %mm0 - movq (%ebx,%edx,1), %mm1 - movq (%ebx,%edx,2), %mm2 - movq (%ebx,%eax,1), %mm3 - - transpose_4x4 - - movq %mm1, (%ebx,%edx,1) - movq %mm2, (%ebx,%edx,2) - movq %mm3, (%ebx,%eax,1) - - coupled - - movq %mm0, (%ebx) - movq (%ebx,%edx,1), %mm3 - movq %mm3, %mm0 - - coupled - - movq %mm0, (%ebx, %edx,1) - movq (%ebx,%edx,2), %mm3 - movq %mm3, %mm0 - - coupled - - movq %mm0, (%ebx, %edx,2) - movq (%ebx,%eax,1), %mm3 - movq %mm3, %mm0 - - coupled - - movq %mm1, 0(%edi) # s1[k-1] - movq %mm2, 8(%edi) # s2[k-1] - - movq %mm0, %mm3 - movq (%ebx), %mm0 - movq (%ebx,%edx,1), %mm1 - movq (%ebx,%edx,2), %mm2 - - transpose_4x4 - - movq %mm0, (%ebx) - movq %mm1, (%ebx,%edx,1) - movq %mm2, (%ebx,%edx,2) - movq %mm3, (%ebx,%eax,1) - - addl $8, %ebx - decl %ecx - jnz .cascade_horlr_line_loop - - emms - - pop %edi - pop %esi - pop %ebx - leave - ret - - - |