diff options
Diffstat (limited to 'gdk-pixbuf/pixops/scale_line_22_33_mmx.S')
| -rw-r--r-- | gdk-pixbuf/pixops/scale_line_22_33_mmx.S | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/gdk-pixbuf/pixops/scale_line_22_33_mmx.S b/gdk-pixbuf/pixops/scale_line_22_33_mmx.S deleted file mode 100644 index 6080844c1..000000000 --- a/gdk-pixbuf/pixops/scale_line_22_33_mmx.S +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Copyright (C) 2000 Red Hat, Inc - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - .file "scale_line_22_33_mmx.S" - .version "01.01" -gcc2_compiled.: -.text - .align 16 - -#if !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(__INTERIX) - -/* Magic indicating no need for an executable stack */ -#if !defined __powerpc64__ && !defined __ia64__ -.section .note.GNU-stack; .previous -#endif - -.globl _pixops_scale_line_22_33_mmx - .type _pixops_scale_line_22_33_mmx,@function -_pixops_scale_line_22_33_mmx: - -#else - -.globl __pixops_scale_line_22_33_mmx -__pixops_scale_line_22_33_mmx: - -#endif -/* - * Arguments - * - * weights: 8(%ebp) - * p: 12(%ebp) %esi - * q1: 16(%ebp) - * q2: 20(%ebp) - * xstep: 24(%ebp) - * p_end: 28(%ebp) - * xinit: 32(%ebp) - * -*/ - -/* - * Function call entry - */ - pushl %ebp - movl %esp,%ebp - subl $28,%esp - pushl %edi - pushl %esi - pushl %ebx -/* Locals: - * int x %ebx - * int x_scaled -24(%ebp) - */ - -/* - * Setup - */ -/* Initialize variables */ - movl 32(%ebp),%ebx - movl 32(%ebp),%edx - sarl $16,%edx - movl 12(%ebp),%esi - - cmpl 28(%ebp),%esi - jnb .out - -/* For the body of this loop, %mm01, %mm1, %mm2, %mm3 hold the 4 adjoining - * points we are interpolating between, as: - * - * 000000BB00GG00RR - */ - -/* Load initial values into %mm1, %mm3 */ - leal (%edx,%edx,2),%edx # Multiply by 3 - - movl 16(%ebp),%edi - pxor %mm4, %mm4 - movzbl 2(%edi,%edx),%ecx - shll $16,%ecx - movzwl (%edi,%edx),%eax - orl %eax,%ecx - movd %ecx, %mm1 - punpcklbw %mm4, %mm1 - - movl 20(%ebp),%edi - movzbl 2(%edi,%edx),%ecx - shll $16,%ecx - movzwl (%edi,%edx),%eax - orl %eax,%ecx - movd %ecx, %mm3 - punpcklbw %mm4, %mm3 - - addl $65536,%ebx - movl %ebx,%edx - sarl $16,%edx - - jmp .newx - .p2align 4,,7 -.loop: -/* short *pixel_weights = weights + ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS)) & SUBSAMPLE_MASK) * n_x * n_y - * 16 4 0xf 2 2 - */ - movl %ebx,%eax - andl $0xf000,%eax - shrl $7,%eax - -/* At this point, %edi holds weights. Load the 4 weights into %mm4,%mm5,%mm6,%mm7, multiply and - * accumulate. - */ - movq (%edi,%eax),%mm4 - pmullw %mm0,%mm4 - movq 8(%edi,%eax),%mm5 - pmullw %mm1,%mm5 - movq 16(%edi,%eax),%mm6 - movq 24(%edi,%eax),%mm7 - pmullw %mm2,%mm6 - pmullw %mm3,%mm7 - paddw %mm4, %mm5 - paddw %mm6, %mm7 - paddw %mm5, %mm7 - -/* %mm7 holds the accumulated sum. Compute (C + 0x80) / 256 - */ - pxor %mm4, %mm4 - movl $8421504, %eax # 0x00808080 - movd %eax, %mm6 - punpcklbw %mm4, %mm6 - paddw %mm6, %mm7 - psrlw $8, %mm7 - -/* Pack into %eax and store result - */ - packuswb %mm7, %mm7 - movd %mm7, %eax - - movb %al, (%esi) - shrl $8, %eax - movw %ax, 1(%esi) - addl $3, %esi - - cmpl %esi,28(%ebp) - je .out - -/* x += x_step; */ - addl 24(%ebp),%ebx -/* x_scaled = x >> 16; */ - movl %ebx,%edx - sarl $16,%edx - - cmpl %edx,-24(%ebp) - je .loop - -.newx: - movl %edx,-24(%ebp) -/* - * Load the two new values into %mm1, %mm3, move old values into %mm0, %mm2 - */ - movq %mm1, %mm0 - movq %mm3, %mm2 - - leal (%edx,%edx,2),%edx # Multiply by 3 - - movl 16(%ebp),%edi - movzbl 2(%edi,%edx),%ecx - shll $16,%ecx - movzwl (%edi,%edx),%eax - orl %eax,%ecx - movd %ecx, %mm1 - punpcklbw %mm4, %mm1 - - movl 20(%ebp),%edi - movzbl 2(%edi,%edx),%ecx - shll $16,%ecx - movzwl (%edi,%edx),%eax - orl %eax,%ecx - movd %ecx, %mm3 - punpcklbw %mm4, %mm3 - - movl 8(%ebp),%edi - - jmp .loop - -.out: - movl %esi,%eax - emms - leal -40(%ebp),%esp - popl %ebx - popl %esi - popl %edi - movl %ebp,%esp - popl %ebp - ret |