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Diffstat (limited to 'media/libvpx/vp8/common/x86/copy_sse2.asm')
-rw-r--r--media/libvpx/vp8/common/x86/copy_sse2.asm93
1 files changed, 93 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/x86/copy_sse2.asm b/media/libvpx/vp8/common/x86/copy_sse2.asm
new file mode 100644
index 000000000..86fae2695
--- /dev/null
+++ b/media/libvpx/vp8/common/x86/copy_sse2.asm
@@ -0,0 +1,93 @@
+;
+; 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"
+
+
+;void vp8_copy32xn_sse2(
+; unsigned char *src_ptr,
+; int src_stride,
+; unsigned char *dst_ptr,
+; int dst_stride,
+; int height);
+global sym(vp8_copy32xn_sse2) PRIVATE
+sym(vp8_copy32xn_sse2):
+ push rbp
+ mov rbp, rsp
+ SHADOW_ARGS_TO_STACK 5
+ SAVE_XMM 7
+ push rsi
+ push rdi
+ ; end prolog
+
+ mov rsi, arg(0) ;src_ptr
+ mov rdi, arg(2) ;dst_ptr
+
+ movsxd rax, dword ptr arg(1) ;src_stride
+ movsxd rdx, dword ptr arg(3) ;dst_stride
+ movsxd rcx, dword ptr arg(4) ;height
+
+.block_copy_sse2_loopx4:
+ movdqu xmm0, XMMWORD PTR [rsi]
+ movdqu xmm1, XMMWORD PTR [rsi + 16]
+ movdqu xmm2, XMMWORD PTR [rsi + rax]
+ movdqu xmm3, XMMWORD PTR [rsi + rax + 16]
+
+ lea rsi, [rsi+rax*2]
+
+ movdqu xmm4, XMMWORD PTR [rsi]
+ movdqu xmm5, XMMWORD PTR [rsi + 16]
+ movdqu xmm6, XMMWORD PTR [rsi + rax]
+ movdqu xmm7, XMMWORD PTR [rsi + rax + 16]
+
+ lea rsi, [rsi+rax*2]
+
+ movdqa XMMWORD PTR [rdi], xmm0
+ movdqa XMMWORD PTR [rdi + 16], xmm1
+ movdqa XMMWORD PTR [rdi + rdx], xmm2
+ movdqa XMMWORD PTR [rdi + rdx + 16], xmm3
+
+ lea rdi, [rdi+rdx*2]
+
+ movdqa XMMWORD PTR [rdi], xmm4
+ movdqa XMMWORD PTR [rdi + 16], xmm5
+ movdqa XMMWORD PTR [rdi + rdx], xmm6
+ movdqa XMMWORD PTR [rdi + rdx + 16], xmm7
+
+ lea rdi, [rdi+rdx*2]
+
+ sub rcx, 4
+ cmp rcx, 4
+ jge .block_copy_sse2_loopx4
+
+ cmp rcx, 0
+ je .copy_is_done
+
+.block_copy_sse2_loop:
+ movdqu xmm0, XMMWORD PTR [rsi]
+ movdqu xmm1, XMMWORD PTR [rsi + 16]
+ lea rsi, [rsi+rax]
+
+ movdqa XMMWORD PTR [rdi], xmm0
+ movdqa XMMWORD PTR [rdi + 16], xmm1
+ lea rdi, [rdi+rdx]
+
+ sub rcx, 1
+ jne .block_copy_sse2_loop
+
+.copy_is_done:
+ ; begin epilog
+ pop rdi
+ pop rsi
+ RESTORE_XMM
+ UNSHADOW_ARGS
+ pop rbp
+ ret