c2140b8af1
Changes 'The VP8 project' to 'The WebM project', for consistency with other webmproject.org repositories. Fixes issue #97. Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba
299 lines
9.6 KiB
C
299 lines
9.6 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "memory.h"
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#include "preproc.h"
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#include "pragmas.h"
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/****************************************************************************
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* Macros
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****************************************************************************/
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#define FRAMECOUNT 7
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#define ROUNDUP32(X) ( ( ( (unsigned long) X ) + 31 )&( 0xFFFFFFE0 ) )
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/****************************************************************************
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* Imports
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****************************************************************************/
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extern void vpx_get_processor_flags(int *mmx_enabled, int *xmm_enabled, int *wmt_enabled);
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/****************************************************************************
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* Exported Global Variables
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****************************************************************************/
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void (*temp_filter)(pre_proc_instance *ppi, unsigned char *s, unsigned char *d, int bytes, int strength);
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/****************************************************************************
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*
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* ROUTINE : temp_filter_wmt
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*
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* INPUTS : pre_proc_instance *ppi : Pointer to pre-processor instance.
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* unsigned char *s : Pointer to source frame.
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* unsigned char *d : Pointer to destination frame.
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* int bytes : Number of bytes to filter.
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* int strength : Strength of filter to apply.
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*
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* OUTPUTS : None.
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*
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* RETURNS : void
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*
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* FUNCTION : Performs a closesness adjusted temporarl blur
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*
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* SPECIAL NOTES : Destination frame can be same as source frame.
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*
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****************************************************************************/
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void temp_filter_wmt
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(
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pre_proc_instance *ppi,
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unsigned char *s,
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unsigned char *d,
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int bytes,
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int strength
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)
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{
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int byte = 0;
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unsigned char *frameptr = ppi->frame_buffer;
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__declspec(align(16)) unsigned short threes[] = { 3, 3, 3, 3, 3, 3, 3, 3};
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__declspec(align(16)) unsigned short sixteens[] = {16, 16, 16, 16, 16, 16, 16, 16};
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if (ppi->frame == 0)
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{
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do
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{
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int i;
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int frame = 0;
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do
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{
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for (i = 0; i < 8; i++)
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{
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*frameptr = s[byte+i];
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++frameptr;
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}
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++frame;
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}
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while (frame < FRAMECOUNT);
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for (i = 0; i < 8; i++)
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d[byte+i] = s[byte+i];
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byte += 8;
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}
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while (byte < bytes);
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}
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else
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{
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int i;
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int offset2 = (ppi->frame % FRAMECOUNT);
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do
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{
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__declspec(align(16)) unsigned short counts[8];
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__declspec(align(16)) unsigned short sums[8];
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__asm
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{
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mov eax, offset2
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mov edi, s // source pixels
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pxor xmm1, xmm1 // accumulator
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pxor xmm7, xmm7
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mov esi, frameptr // accumulator
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pxor xmm2, xmm2 // count
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movq xmm3, QWORD PTR [edi]
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movq QWORD PTR [esi+8*eax], xmm3
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punpcklbw xmm3, xmm2 // xmm3 source pixels
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mov ecx, FRAMECOUNT
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next_frame:
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movq xmm4, QWORD PTR [esi] // get frame buffer values
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punpcklbw xmm4, xmm7 // xmm4 frame buffer pixels
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movdqa xmm6, xmm4 // save the pixel values
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psubsw xmm4, xmm3 // subtracted pixel values
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pmullw xmm4, xmm4 // square xmm4
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movd xmm5, strength
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psrlw xmm4, xmm5 // should be strength
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pmullw xmm4, threes // 3 * modifier
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movdqa xmm5, sixteens // 16s
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psubusw xmm5, xmm4 // 16 - modifiers
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movdqa xmm4, xmm5 // save the modifiers
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pmullw xmm4, xmm6 // multiplier values
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paddusw xmm1, xmm4 // accumulator
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paddusw xmm2, xmm5 // count
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add esi, 8 // next frame
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dec ecx // next set of eight pixels
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jnz next_frame
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movdqa counts, xmm2
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psrlw xmm2, 1 // divide count by 2 for rounding
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paddusw xmm1, xmm2 // rounding added in
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mov frameptr, esi
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movdqa sums, xmm1
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}
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for (i = 0; i < 8; i++)
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{
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int blurvalue = sums[i] * ppi->fixed_divide[counts[i]];
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blurvalue >>= 16;
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d[i] = blurvalue;
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}
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s += 8;
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d += 8;
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byte += 8;
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}
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while (byte < bytes);
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}
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++ppi->frame;
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__asm emms
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}
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/****************************************************************************
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*
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* ROUTINE : temp_filter_mmx
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*
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* INPUTS : pre_proc_instance *ppi : Pointer to pre-processor instance.
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* unsigned char *s : Pointer to source frame.
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* unsigned char *d : Pointer to destination frame.
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* int bytes : Number of bytes to filter.
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* int strength : Strength of filter to apply.
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*
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* OUTPUTS : None.
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*
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* RETURNS : void
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*
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* FUNCTION : Performs a closesness adjusted temporarl blur
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*
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* SPECIAL NOTES : Destination frame can be same as source frame.
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*
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****************************************************************************/
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void temp_filter_mmx
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(
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pre_proc_instance *ppi,
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unsigned char *s,
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unsigned char *d,
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int bytes,
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int strength
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)
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{
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int byte = 0;
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unsigned char *frameptr = ppi->frame_buffer;
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__declspec(align(16)) unsigned short threes[] = { 3, 3, 3, 3};
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__declspec(align(16)) unsigned short sixteens[] = {16, 16, 16, 16};
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if (ppi->frame == 0)
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{
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do
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{
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int i;
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int frame = 0;
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do
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{
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for (i = 0; i < 4; i++)
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{
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*frameptr = s[byte+i];
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++frameptr;
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}
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++frame;
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}
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while (frame < FRAMECOUNT);
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for (i = 0; i < 4; i++)
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d[byte+i] = s[byte+i];
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byte += 4;
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}
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while (byte < bytes);
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}
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else
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{
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int i;
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int offset2 = (ppi->frame % FRAMECOUNT);
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do
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{
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__declspec(align(16)) unsigned short counts[8];
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__declspec(align(16)) unsigned short sums[8];
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__asm
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{
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mov eax, offset2
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mov edi, s // source pixels
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pxor mm1, mm1 // accumulator
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pxor mm7, mm7
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mov esi, frameptr // accumulator
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pxor mm2, mm2 // count
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movd mm3, DWORD PTR [edi]
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movd DWORD PTR [esi+4*eax], mm3
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punpcklbw mm3, mm2 // mm3 source pixels
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mov ecx, FRAMECOUNT
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next_frame:
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movd mm4, DWORD PTR [esi] // get frame buffer values
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punpcklbw mm4, mm7 // mm4 frame buffer pixels
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movq mm6, mm4 // save the pixel values
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psubsw mm4, mm3 // subtracted pixel values
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pmullw mm4, mm4 // square mm4
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movd mm5, strength
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psrlw mm4, mm5 // should be strength
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pmullw mm4, threes // 3 * modifier
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movq mm5, sixteens // 16s
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psubusw mm5, mm4 // 16 - modifiers
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movq mm4, mm5 // save the modifiers
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pmullw mm4, mm6 // multiplier values
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paddusw mm1, mm4 // accumulator
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paddusw mm2, mm5 // count
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add esi, 4 // next frame
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dec ecx // next set of eight pixels
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jnz next_frame
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movq counts, mm2
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psrlw mm2, 1 // divide count by 2 for rounding
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paddusw mm1, mm2 // rounding added in
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mov frameptr, esi
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movq sums, mm1
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}
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for (i = 0; i < 4; i++)
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{
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int blurvalue = sums[i] * ppi->fixed_divide[counts[i]];
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blurvalue >>= 16;
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d[i] = blurvalue;
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}
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s += 4;
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d += 4;
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byte += 4;
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}
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while (byte < bytes);
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}
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++ppi->frame;
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__asm emms
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}
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