diff options
Diffstat (limited to 'libvpx/vp8/encoder/x86/quantize_mmx.asm')
| -rw-r--r-- | libvpx/vp8/encoder/x86/quantize_mmx.asm | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/libvpx/vp8/encoder/x86/quantize_mmx.asm b/libvpx/vp8/encoder/x86/quantize_mmx.asm new file mode 100644 index 0000000..2864ce1 --- /dev/null +++ b/libvpx/vp8/encoder/x86/quantize_mmx.asm @@ -0,0 +1,286 @@ +; +; Copyright (c) 2010 The WebM project authors. All Rights Reserved. +; +; Use of this source code is governed by a BSD-style license +; that can be found in the LICENSE file in the root of the source +; tree. An additional intellectual property rights grant can be found +; in the file PATENTS. All contributing project authors may +; be found in the AUTHORS file in the root of the source tree. +; + + +%include "vpx_ports/x86_abi_support.asm" + +;int vp8_fast_quantize_b_impl_mmx(short *coeff_ptr, short *zbin_ptr, +; short *qcoeff_ptr,short *dequant_ptr, +; short *scan_mask, short *round_ptr, +; short *quant_ptr, short *dqcoeff_ptr); +global sym(vp8_fast_quantize_b_impl_mmx) PRIVATE +sym(vp8_fast_quantize_b_impl_mmx): + push rbp + mov rbp, rsp + SHADOW_ARGS_TO_STACK 8 + push rsi + push rdi + ; end prolog + + + mov rsi, arg(0) ;coeff_ptr + movq mm0, [rsi] + + mov rax, arg(1) ;zbin_ptr + movq mm1, [rax] + + movq mm3, mm0 + psraw mm0, 15 + + pxor mm3, mm0 + psubw mm3, mm0 ; abs + + movq mm2, mm3 + pcmpgtw mm1, mm2 + + pandn mm1, mm2 + movq mm3, mm1 + + mov rdx, arg(6) ;quant_ptr + movq mm1, [rdx] + + mov rcx, arg(5) ;round_ptr + movq mm2, [rcx] + + paddw mm3, mm2 + pmulhuw mm3, mm1 + + pxor mm3, mm0 + psubw mm3, mm0 ;gain the sign back + + mov rdi, arg(2) ;qcoeff_ptr + movq mm0, mm3 + + movq [rdi], mm3 + + mov rax, arg(3) ;dequant_ptr + movq mm2, [rax] + + pmullw mm3, mm2 + mov rax, arg(7) ;dqcoeff_ptr + + movq [rax], mm3 + + ; next 8 + movq mm4, [rsi+8] + + mov rax, arg(1) ;zbin_ptr + movq mm5, [rax+8] + + movq mm7, mm4 + psraw mm4, 15 + + pxor mm7, mm4 + psubw mm7, mm4 ; abs + + movq mm6, mm7 + pcmpgtw mm5, mm6 + + pandn mm5, mm6 + movq mm7, mm5 + + movq mm5, [rdx+8] + movq mm6, [rcx+8] + + paddw mm7, mm6 + pmulhuw mm7, mm5 + + pxor mm7, mm4 + psubw mm7, mm4;gain the sign back + + mov rdi, arg(2) ;qcoeff_ptr + + movq mm1, mm7 + movq [rdi+8], mm7 + + mov rax, arg(3) ;dequant_ptr + movq mm6, [rax+8] + + pmullw mm7, mm6 + mov rax, arg(7) ;dqcoeff_ptr + + movq [rax+8], mm7 + + + ; next 8 + movq mm4, [rsi+16] + + mov rax, arg(1) ;zbin_ptr + movq mm5, [rax+16] + + movq mm7, mm4 + psraw mm4, 15 + + pxor mm7, mm4 + psubw mm7, mm4 ; abs + + movq mm6, mm7 + pcmpgtw mm5, mm6 + + pandn mm5, mm6 + movq mm7, mm5 + + movq mm5, [rdx+16] + movq mm6, [rcx+16] + + paddw mm7, mm6 + pmulhuw mm7, mm5 + + pxor mm7, mm4 + psubw mm7, mm4;gain the sign back + + mov rdi, arg(2) ;qcoeff_ptr + + movq mm1, mm7 + movq [rdi+16], mm7 + + mov rax, arg(3) ;dequant_ptr + movq mm6, [rax+16] + + pmullw mm7, mm6 + mov rax, arg(7) ;dqcoeff_ptr + + movq [rax+16], mm7 + + + ; next 8 + movq mm4, [rsi+24] + + mov rax, arg(1) ;zbin_ptr + movq mm5, [rax+24] + + movq mm7, mm4 + psraw mm4, 15 + + pxor mm7, mm4 + psubw mm7, mm4 ; abs + + movq mm6, mm7 + pcmpgtw mm5, mm6 + + pandn mm5, mm6 + movq mm7, mm5 + + movq mm5, [rdx+24] + movq mm6, [rcx+24] + + paddw mm7, mm6 + pmulhuw mm7, mm5 + + pxor mm7, mm4 + psubw mm7, mm4;gain the sign back + + mov rdi, arg(2) ;qcoeff_ptr + + movq mm1, mm7 + movq [rdi+24], mm7 + + mov rax, arg(3) ;dequant_ptr + movq mm6, [rax+24] + + pmullw mm7, mm6 + mov rax, arg(7) ;dqcoeff_ptr + + movq [rax+24], mm7 + + + + mov rdi, arg(4) ;scan_mask + mov rsi, arg(2) ;qcoeff_ptr + + pxor mm5, mm5 + pxor mm7, mm7 + + movq mm0, [rsi] + movq mm1, [rsi+8] + + movq mm2, [rdi] + movq mm3, [rdi+8]; + + pcmpeqw mm0, mm7 + pcmpeqw mm1, mm7 + + pcmpeqw mm6, mm6 + pxor mm0, mm6 + + pxor mm1, mm6 + psrlw mm0, 15 + + psrlw mm1, 15 + pmaddwd mm0, mm2 + + pmaddwd mm1, mm3 + movq mm5, mm0 + + paddd mm5, mm1 + + movq mm0, [rsi+16] + movq mm1, [rsi+24] + + movq mm2, [rdi+16] + movq mm3, [rdi+24]; + + pcmpeqw mm0, mm7 + pcmpeqw mm1, mm7 + + pcmpeqw mm6, mm6 + pxor mm0, mm6 + + pxor mm1, mm6 + psrlw mm0, 15 + + psrlw mm1, 15 + pmaddwd mm0, mm2 + + pmaddwd mm1, mm3 + paddd mm5, mm0 + + paddd mm5, mm1 + movq mm0, mm5 + + psrlq mm5, 32 + paddd mm0, mm5 + + ; eob adjustment begins here + movq rcx, mm0 + and rcx, 0xffff + + xor rdx, rdx + sub rdx, rcx ; rdx=-rcx + + bsr rax, rcx + inc rax + + sar rdx, 31 + and rax, rdx + ; Substitute the sse assembly for the old mmx mixed assembly/C. The + ; following is kept as reference + ; movq rcx, mm0 + ; bsr rax, rcx + ; + ; mov eob, rax + ; mov eee, rcx + ; + ;if(eee==0) + ;{ + ; eob=-1; + ;} + ;else if(eee<0) + ;{ + ; eob=15; + ;} + ;d->eob = eob+1; + + ; begin epilog + pop rdi + pop rsi + UNSHADOW_ARGS + pop rbp + ret |