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-rw-r--r--media/libvpx/vp8/encoder/x86/quantize_mmx.asm286
1 files changed, 286 insertions, 0 deletions
diff --git a/media/libvpx/vp8/encoder/x86/quantize_mmx.asm b/media/libvpx/vp8/encoder/x86/quantize_mmx.asm
new file mode 100644
index 000000000..2864ce16d
--- /dev/null
+++ b/media/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