/*
* Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (C) 2008 David Conrad
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "dsputil.h"
#include "dwt.h"
+#include "libavcodec/x86/dwt.h"
-void ff_slice_buffer_init(slice_buffer *buf, int line_count,
- int max_allocated_lines, int line_width,
- IDWTELEM *base_buffer)
+int ff_slice_buffer_init(slice_buffer *buf, int line_count,
+ int max_allocated_lines, int line_width,
+ IDWTELEM *base_buffer)
{
int i;
buf->line_width = line_width;
buf->data_count = max_allocated_lines;
buf->line = av_mallocz(sizeof(IDWTELEM *) * line_count);
+ if (!buf->line)
+ return AVERROR(ENOMEM);
buf->data_stack = av_malloc(sizeof(IDWTELEM *) * max_allocated_lines);
+ if (!buf->data_stack) {
+ av_freep(&buf->line);
+ return AVERROR(ENOMEM);
+ }
- for (i = 0; i < max_allocated_lines; i++)
+ for (i = 0; i < max_allocated_lines; i++) {
buf->data_stack[i] = av_malloc(sizeof(IDWTELEM) * line_width);
+ if (!buf->data_stack[i]) {
+ for (i--; i >=0; i--)
+ av_freep(&buf->data_stack[i]);
+ av_freep(&buf->data_stack);
+ av_freep(&buf->line);
+ return AVERROR(ENOMEM);
+ }
+ }
buf->data_stack_top = max_allocated_lines - 1;
+ return 0;
}
IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line)
}
#endif /* ! liftS */
-static void horizontal_decompose53i(DWTELEM *b, int width)
+static void horizontal_decompose53i(DWTELEM *b, DWTELEM *temp, int width)
{
- DWTELEM temp[width];
const int width2 = width >> 1;
int x;
const int w2 = (width + 1) >> 1;
b1[i] += (b0[i] + b2[i] + 2) >> 2;
}
-static void spatial_decompose53i(DWTELEM *buffer, int width, int height,
- int stride)
+static void spatial_decompose53i(DWTELEM *buffer, DWTELEM *temp,
+ int width, int height, int stride)
{
int y;
DWTELEM *b0 = buffer + mirror(-2 - 1, height - 1) * stride;
DWTELEM *b3 = buffer + mirror(y + 2, height - 1) * stride;
if (y + 1 < (unsigned)height)
- horizontal_decompose53i(b2, width);
+ horizontal_decompose53i(b2, temp, width);
if (y + 2 < (unsigned)height)
- horizontal_decompose53i(b3, width);
+ horizontal_decompose53i(b3, temp, width);
if (y + 1 < (unsigned)height)
vertical_decompose53iH0(b1, b2, b3, width);
}
}
-static void horizontal_decompose97i(DWTELEM *b, int width)
+static void horizontal_decompose97i(DWTELEM *b, DWTELEM *temp, int width)
{
- DWTELEM temp[width];
const int w2 = (width + 1) >> 1;
lift(temp + w2, b + 1, b, 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1);
b1[i] += (W_DM * (b0[i] + b2[i]) + W_DO) >> W_DS;
}
-static void spatial_decompose97i(DWTELEM *buffer, int width, int height,
- int stride)
+static void spatial_decompose97i(DWTELEM *buffer, DWTELEM *temp,
+ int width, int height, int stride)
{
int y;
DWTELEM *b0 = buffer + mirror(-4 - 1, height - 1) * stride;
DWTELEM *b5 = buffer + mirror(y + 4, height - 1) * stride;
if (y + 3 < (unsigned)height)
- horizontal_decompose97i(b4, width);
+ horizontal_decompose97i(b4, temp, width);
if (y + 4 < (unsigned)height)
- horizontal_decompose97i(b5, width);
+ horizontal_decompose97i(b5, temp, width);
if (y + 3 < (unsigned)height)
vertical_decompose97iH0(b3, b4, b5, width);
}
}
-void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride,
- int type, int decomposition_count)
+void ff_spatial_dwt(DWTELEM *buffer, DWTELEM *temp, int width, int height,
+ int stride, int type, int decomposition_count)
{
int level;
for (level = 0; level < decomposition_count; level++) {
switch (type) {
case DWT_97:
- spatial_decompose97i(buffer,
+ spatial_decompose97i(buffer, temp,
width >> level, height >> level,
stride << level);
break;
case DWT_53:
- spatial_decompose53i(buffer,
+ spatial_decompose53i(buffer, temp,
width >> level, height >> level,
stride << level);
break;
}
}
-static void horizontal_compose53i(IDWTELEM *b, int width)
+static void horizontal_compose53i(IDWTELEM *b, IDWTELEM *temp, int width)
{
- IDWTELEM temp[width];
const int width2 = width >> 1;
const int w2 = (width + 1) >> 1;
int x;
}
static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer *sb,
+ IDWTELEM *temp,
int width, int height,
int stride_line)
{
}
if (y - 1 < (unsigned)height)
- horizontal_compose53i(b0, width);
+ horizontal_compose53i(b0, temp, width);
if (y + 0 < (unsigned)height)
- horizontal_compose53i(b1, width);
+ horizontal_compose53i(b1, temp, width);
cs->b0 = b2;
cs->b1 = b3;
cs->y += 2;
}
-static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, int width,
- int height, int stride)
+static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer,
+ IDWTELEM *temp, int width, int height,
+ int stride)
{
int y = cs->y;
IDWTELEM *b0 = cs->b0;
vertical_compose53iH0(b0, b1, b2, width);
if (y - 1 < (unsigned)height)
- horizontal_compose53i(b0, width);
+ horizontal_compose53i(b0, temp, width);
if (y + 0 < (unsigned)height)
- horizontal_compose53i(b1, width);
+ horizontal_compose53i(b1, temp, width);
cs->b0 = b2;
cs->b1 = b3;
cs->y += 2;
}
-static void av_unused spatial_compose53i(IDWTELEM *buffer, int width,
- int height, int stride)
+static void av_unused spatial_compose53i(IDWTELEM *buffer, IDWTELEM *temp,
+ int width, int height, int stride)
{
DWTCompose cs;
spatial_compose53i_init(&cs, buffer, height, stride);
while (cs.y <= height)
- spatial_compose53i_dy(&cs, buffer, width, height, stride);
+ spatial_compose53i_dy(&cs, buffer, temp, width, height, stride);
}
-void ff_snow_horizontal_compose97i(IDWTELEM *b, int width)
+void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width)
{
- IDWTELEM temp[width];
const int w2 = (width + 1) >> 1;
#if 0 //maybe more understadable but slower
}
static void spatial_compose97i_dy_buffered(DWTContext *dsp, DWTCompose *cs,
- slice_buffer *sb, int width,
- int height, int stride_line)
+ slice_buffer * sb, IDWTELEM *temp,
+ int width, int height,
+ int stride_line)
{
int y = cs->y;
}
if (y - 1 < (unsigned)height)
- dsp->horizontal_compose97i(b0, width);
+ dsp->horizontal_compose97i(b0, temp, width);
if (y + 0 < (unsigned)height)
- dsp->horizontal_compose97i(b1, width);
+ dsp->horizontal_compose97i(b1, temp, width);
cs->b0 = b2;
cs->b1 = b3;
cs->y += 2;
}
-static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width,
- int height, int stride)
+static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer,
+ IDWTELEM *temp, int width, int height,
+ int stride)
{
int y = cs->y;
IDWTELEM *b0 = cs->b0;
vertical_compose97iH0(b0, b1, b2, width);
if (y - 1 < (unsigned)height)
- ff_snow_horizontal_compose97i(b0, width);
+ ff_snow_horizontal_compose97i(b0, temp, width);
if (y + 0 < (unsigned)height)
- ff_snow_horizontal_compose97i(b1, width);
+ ff_snow_horizontal_compose97i(b1, temp, width);
cs->b0 = b2;
cs->b1 = b3;
cs->y += 2;
}
-static void av_unused spatial_compose97i(IDWTELEM *buffer, int width,
- int height, int stride)
+static void av_unused spatial_compose97i(IDWTELEM *buffer, IDWTELEM *temp,
+ int width, int height, int stride)
{
DWTCompose cs;
spatial_compose97i_init(&cs, buffer, height, stride);
while (cs.y <= height)
- spatial_compose97i_dy(&cs, buffer, width, height, stride);
+ spatial_compose97i_dy(&cs, buffer, temp, width, height, stride);
}
void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width,
}
void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs,
- slice_buffer *slice_buf, int width,
- int height, int stride_line, int type,
- int decomposition_count, int y)
+ slice_buffer *slice_buf, IDWTELEM *temp,
+ int width, int height, int stride_line,
+ int type, int decomposition_count, int y)
{
const int support = type == 1 ? 3 : 5;
int level;
while (cs[level].y <= FFMIN((y >> level) + support, height >> level)) {
switch (type) {
case DWT_97:
- spatial_compose97i_dy_buffered(dsp, cs + level, slice_buf,
+ spatial_compose97i_dy_buffered(dsp, cs + level, slice_buf, temp,
width >> level,
height >> level,
stride_line << level);
break;
case DWT_53:
- spatial_compose53i_dy_buffered(cs + level, slice_buf,
+ spatial_compose53i_dy_buffered(cs + level, slice_buf, temp,
width >> level,
height >> level,
stride_line << level);
}
}
-static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width,
- int height, int stride, int type,
+static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer,
+ IDWTELEM *temp, int width, int height,
+ int stride, int type,
int decomposition_count, int y)
{
const int support = type == 1 ? 3 : 5;
while (cs[level].y <= FFMIN((y >> level) + support, height >> level)) {
switch (type) {
case DWT_97:
- spatial_compose97i_dy(cs + level, buffer, width >> level,
+ spatial_compose97i_dy(cs + level, buffer, temp, width >> level,
height >> level, stride << level);
break;
case DWT_53:
- spatial_compose53i_dy(cs + level, buffer, width >> level,
+ spatial_compose53i_dy(cs + level, buffer, temp, width >> level,
height >> level, stride << level);
break;
}
}
}
-void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride,
- int type, int decomposition_count)
+void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height,
+ int stride, int type, int decomposition_count)
{
DWTCompose cs[MAX_DECOMPOSITIONS];
int y;
ff_spatial_idwt_init(cs, buffer, width, height, stride, type,
decomposition_count);
for (y = 0; y < height; y += 4)
- ff_spatial_idwt_slice(cs, buffer, width, height, stride, type,
+ ff_spatial_idwt_slice(cs, buffer, temp, width, height, stride, type,
decomposition_count, y);
}
{
int s, i, j;
const int dec_count = w == 8 ? 3 : 4;
- int tmp[32 * 32];
+ int tmp[32 * 32], tmp2[32];
int level, ori;
static const int scale[2][2][4][4] = {
{
pix2 += line_size;
}
- ff_spatial_dwt(tmp, w, h, 32, type, dec_count);
+ ff_spatial_dwt(tmp, tmp2, w, h, 32, type, dec_count);
s = 0;
assert(w == h);
if (HAVE_MMX)
ff_dwt_init_x86(c);
}
+
+
+static av_always_inline
+void interleave(IDWTELEM *dst, IDWTELEM *src0, IDWTELEM *src1, int w2, int add, int shift)
+{
+ int i;
+ for (i = 0; i < w2; i++) {
+ dst[2*i ] = (src0[i] + add) >> shift;
+ dst[2*i+1] = (src1[i] + add) >> shift;
+ }
+}
+
+static void horizontal_compose_dirac53i(IDWTELEM *b, IDWTELEM *temp, int w)
+{
+ const int w2 = w >> 1;
+ int x;
+
+ temp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]);
+ for (x = 1; x < w2; x++) {
+ temp[x ] = COMPOSE_53iL0 (b[x+w2-1], b[x ], b[x+w2]);
+ temp[x+w2-1] = COMPOSE_DIRAC53iH0(temp[x-1], b[x+w2-1], temp[x]);
+ }
+ temp[w-1] = COMPOSE_DIRAC53iH0(temp[w2-1], b[w-1], temp[w2-1]);
+
+ interleave(b, temp, temp+w2, w2, 1, 1);
+}
+
+static void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int w)
+{
+ const int w2 = w >> 1;
+ int x;
+
+ tmp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]);
+ for (x = 1; x < w2; x++)
+ tmp[x] = COMPOSE_53iL0(b[x+w2-1], b[x], b[x+w2]);
+
+ // extend the edges
+ tmp[-1] = tmp[0];
+ tmp[w2+1] = tmp[w2] = tmp[w2-1];
+
+ for (x = 0; x < w2; x++) {
+ b[2*x ] = (tmp[x] + 1)>>1;
+ b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
+ }
+}
+
+static void horizontal_compose_dd137i(IDWTELEM *b, IDWTELEM *tmp, int w)
+{
+ const int w2 = w >> 1;
+ int x;
+
+ tmp[0] = COMPOSE_DD137iL0(b[w2], b[w2], b[0], b[w2 ], b[w2+1]);
+ tmp[1] = COMPOSE_DD137iL0(b[w2], b[w2], b[1], b[w2+1], b[w2+2]);
+ for (x = 2; x < w2-1; x++)
+ tmp[x] = COMPOSE_DD137iL0(b[x+w2-2], b[x+w2-1], b[x], b[x+w2], b[x+w2+1]);
+ tmp[w2-1] = COMPOSE_DD137iL0(b[w-3], b[w-2], b[w2-1], b[w-1], b[w-1]);
+
+ // extend the edges
+ tmp[-1] = tmp[0];
+ tmp[w2+1] = tmp[w2] = tmp[w2-1];
+
+ for (x = 0; x < w2; x++) {
+ b[2*x ] = (tmp[x] + 1)>>1;
+ b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
+ }
+}
+
+static av_always_inline
+void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *temp, int w, int shift)
+{
+ const int w2 = w >> 1;
+ int x;
+
+ for (x = 0; x < w2; x++) {
+ temp[x ] = COMPOSE_HAARiL0(b[x ], b[x+w2]);
+ temp[x+w2] = COMPOSE_HAARiH0(b[x+w2], temp[x]);
+ }
+
+ interleave(b, temp, temp+w2, w2, shift, shift);
+}
+
+static void horizontal_compose_haar0i(IDWTELEM *b, IDWTELEM *temp, int w)
+{
+ horizontal_compose_haari(b, temp, w, 0);
+}
+
+static void horizontal_compose_haar1i(IDWTELEM *b, IDWTELEM *temp, int w)
+{
+ horizontal_compose_haari(b, temp, w, 1);
+}
+
+static void horizontal_compose_fidelityi(IDWTELEM *b, IDWTELEM *tmp, int w)
+{
+ const int w2 = w >> 1;
+ int i, x;
+ IDWTELEM v[8];
+
+ for (x = 0; x < w2; x++) {
+ for (i = 0; i < 8; i++)
+ v[i] = b[av_clip(x-3+i, 0, w2-1)];
+ tmp[x] = COMPOSE_FIDELITYiH0(v[0], v[1], v[2], v[3], b[x+w2], v[4], v[5], v[6], v[7]);
+ }
+
+ for (x = 0; x < w2; x++) {
+ for (i = 0; i < 8; i++)
+ v[i] = tmp[av_clip(x-4+i, 0, w2-1)];
+ tmp[x+w2] = COMPOSE_FIDELITYiL0(v[0], v[1], v[2], v[3], b[x], v[4], v[5], v[6], v[7]);
+ }
+
+ interleave(b, tmp+w2, tmp, w2, 0, 0);
+}
+
+static void horizontal_compose_daub97i(IDWTELEM *b, IDWTELEM *temp, int w)
+{
+ const int w2 = w >> 1;
+ int x, b0, b1, b2;
+
+ temp[0] = COMPOSE_DAUB97iL1(b[w2], b[0], b[w2]);
+ for (x = 1; x < w2; x++) {
+ temp[x ] = COMPOSE_DAUB97iL1(b[x+w2-1], b[x ], b[x+w2]);
+ temp[x+w2-1] = COMPOSE_DAUB97iH1(temp[x-1], b[x+w2-1], temp[x]);
+ }
+ temp[w-1] = COMPOSE_DAUB97iH1(temp[w2-1], b[w-1], temp[w2-1]);
+
+ // second stage combined with interleave and shift
+ b0 = b2 = COMPOSE_DAUB97iL0(temp[w2], temp[0], temp[w2]);
+ b[0] = (b0 + 1) >> 1;
+ for (x = 1; x < w2; x++) {
+ b2 = COMPOSE_DAUB97iL0(temp[x+w2-1], temp[x ], temp[x+w2]);
+ b1 = COMPOSE_DAUB97iH0( b0, temp[x+w2-1], b2 );
+ b[2*x-1] = (b1 + 1) >> 1;
+ b[2*x ] = (b2 + 1) >> 1;
+ b0 = b2;
+ }
+ b[w-1] = (COMPOSE_DAUB97iH0(b2, temp[w-1], b2) + 1) >> 1;
+}
+
+static void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]);
+ }
+}
+
+static void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
+ IDWTELEM *b3, IDWTELEM *b4, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]);
+ }
+}
+
+static void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
+ IDWTELEM *b3, IDWTELEM *b4, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]);
+ }
+}
+
+static void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width)
+{
+ int i;
+
+ for (i = 0; i < width; i++) {
+ b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]);
+ b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]);
+ }
+}
+
+static void vertical_compose_fidelityiH0(IDWTELEM *dst, IDWTELEM *b[8], int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ dst[i] = COMPOSE_FIDELITYiH0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]);
+ }
+}
+
+static void vertical_compose_fidelityiL0(IDWTELEM *dst, IDWTELEM *b[8], int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ dst[i] = COMPOSE_FIDELITYiL0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]);
+ }
+}
+
+static void vertical_compose_daub97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] = COMPOSE_DAUB97iH0(b0[i], b1[i], b2[i]);
+ }
+}
+
+static void vertical_compose_daub97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] = COMPOSE_DAUB97iH1(b0[i], b1[i], b2[i]);
+ }
+}
+
+static void vertical_compose_daub97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] = COMPOSE_DAUB97iL0(b0[i], b1[i], b2[i]);
+ }
+}
+
+static void vertical_compose_daub97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
+{
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] = COMPOSE_DAUB97iL1(b0[i], b1[i], b2[i]);
+ }
+}
+
+
+static void spatial_compose_dd97i_dy(DWTContext *d, int level, int width, int height, int stride)
+{
+ vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
+ vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
+ DWTCompose *cs = d->cs + level;
+
+ int i, y = cs->y;
+ IDWTELEM *b[8];
+ for (i = 0; i < 6; i++)
+ b[i] = cs->b[i];
+ b[6] = d->buffer + av_clip(y+5, 0, height-2)*stride;
+ b[7] = d->buffer + av_clip(y+6, 1, height-1)*stride;
+
+ if(y+5<(unsigned)height) vertical_compose_l0( b[5], b[6], b[7], width);
+ if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width);
+
+ if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
+ if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
+
+ for (i = 0; i < 6; i++)
+ cs->b[i] = b[i+2];
+ cs->y += 2;
+}
+
+static void spatial_compose_dirac53i_dy(DWTContext *d, int level, int width, int height, int stride)
+{
+ vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
+ vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
+ DWTCompose *cs = d->cs + level;
+
+ int y= cs->y;
+ IDWTELEM *b[4] = { cs->b[0], cs->b[1] };
+ b[2] = d->buffer + mirror(y+1, height-1)*stride;
+ b[3] = d->buffer + mirror(y+2, height-1)*stride;
+
+ if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width);
+ if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width);
+
+ if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
+ if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
+
+ cs->b[0] = b[2];
+ cs->b[1] = b[3];
+ cs->y += 2;
+}
+
+
+static void spatial_compose_dd137i_dy(DWTContext *d, int level, int width, int height, int stride)
+{
+ vertical_compose_5tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
+ vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
+ DWTCompose *cs = d->cs + level;
+
+ int i, y = cs->y;
+ IDWTELEM *b[10];
+ for (i = 0; i < 8; i++)
+ b[i] = cs->b[i];
+ b[8] = d->buffer + av_clip(y+7, 0, height-2)*stride;
+ b[9] = d->buffer + av_clip(y+8, 1, height-1)*stride;
+
+ if(y+5<(unsigned)height) vertical_compose_l0(b[3], b[5], b[6], b[7], b[9], width);
+ if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width);
+
+ if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
+ if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
+
+ for (i = 0; i < 8; i++)
+ cs->b[i] = b[i+2];
+ cs->y += 2;
+}
+
+// haar makes the assumption that height is even (always true for dirac)
+static void spatial_compose_haari_dy(DWTContext *d, int level, int width, int height, int stride)
+{
+ vertical_compose_2tap vertical_compose = (void*)d->vertical_compose;
+ int y = d->cs[level].y;
+ IDWTELEM *b0 = d->buffer + (y-1)*stride;
+ IDWTELEM *b1 = d->buffer + (y )*stride;
+
+ vertical_compose(b0, b1, width);
+ d->horizontal_compose(b0, d->temp, width);
+ d->horizontal_compose(b1, d->temp, width);
+
+ d->cs[level].y += 2;
+}
+
+// Don't do sliced idwt for fidelity; the 9 tap filter makes it a bit annoying
+// Fortunately, this filter isn't used in practice.
+static void spatial_compose_fidelity(DWTContext *d, int level, int width, int height, int stride)
+{
+ vertical_compose_9tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
+ vertical_compose_9tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
+ int i, y;
+ IDWTELEM *b[8];
+
+ for (y = 1; y < height; y += 2) {
+ for (i = 0; i < 8; i++)
+ b[i] = d->buffer + av_clip((y-7 + 2*i), 0, height-2)*stride;
+ vertical_compose_h0(d->buffer + y*stride, b, width);
+ }
+
+ for (y = 0; y < height; y += 2) {
+ for (i = 0; i < 8; i++)
+ b[i] = d->buffer + av_clip((y-7 + 2*i), 1, height-1)*stride;
+ vertical_compose_l0(d->buffer + y*stride, b, width);
+ }
+
+ for (y = 0; y < height; y++)
+ d->horizontal_compose(d->buffer + y*stride, d->temp, width);
+
+ d->cs[level].y = height+1;
+}
+
+static void spatial_compose_daub97i_dy(DWTContext *d, int level, int width, int height, int stride)
+{
+ vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
+ vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
+ vertical_compose_3tap vertical_compose_l1 = (void*)d->vertical_compose_l1;
+ vertical_compose_3tap vertical_compose_h1 = (void*)d->vertical_compose_h1;
+ DWTCompose *cs = d->cs + level;
+
+ int i, y = cs->y;
+ IDWTELEM *b[6];
+ for (i = 0; i < 4; i++)
+ b[i] = cs->b[i];
+ b[4] = d->buffer + mirror(y+3, height-1)*stride;
+ b[5] = d->buffer + mirror(y+4, height-1)*stride;
+
+ if(y+3<(unsigned)height) vertical_compose_l1(b[3], b[4], b[5], width);
+ if(y+2<(unsigned)height) vertical_compose_h1(b[2], b[3], b[4], width);
+ if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width);
+ if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width);
+
+ if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
+ if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
+
+ for (i = 0; i < 4; i++)
+ cs->b[i] = b[i+2];
+ cs->y += 2;
+}
+
+
+static void spatial_compose97i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
+{
+ cs->b[0] = buffer + mirror(-3-1, height-1)*stride;
+ cs->b[1] = buffer + mirror(-3 , height-1)*stride;
+ cs->b[2] = buffer + mirror(-3+1, height-1)*stride;
+ cs->b[3] = buffer + mirror(-3+2, height-1)*stride;
+ cs->y = -3;
+}
+
+static void spatial_compose53i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
+{
+ cs->b[0] = buffer + mirror(-1-1, height-1)*stride;
+ cs->b[1] = buffer + mirror(-1 , height-1)*stride;
+ cs->y = -1;
+}
+
+static void spatial_compose_dd97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
+{
+ cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride;
+ cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride;
+ cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride;
+ cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride;
+ cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride;
+ cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride;
+ cs->y = -5;
+}
+
+static void spatial_compose_dd137i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
+{
+ cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride;
+ cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride;
+ cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride;
+ cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride;
+ cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride;
+ cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride;
+ cs->b[6] = buffer + av_clip(-5+5, 0, height-2)*stride;
+ cs->b[7] = buffer + av_clip(-5+6, 1, height-1)*stride;
+ cs->y = -5;
+}
+
+int ff_spatial_idwt_init2(DWTContext *d, IDWTELEM *buffer, int width, int height,
+ int stride, enum dwt_type type, int decomposition_count,
+ IDWTELEM *temp)
+{
+ int level;
+
+ d->buffer = buffer;
+ d->width = width;
+ d->height = height;
+ d->stride = stride;
+ d->decomposition_count = decomposition_count;
+ d->temp = temp + 8;
+
+ for(level=decomposition_count-1; level>=0; level--){
+ int hl = height >> level;
+ int stride_l = stride << level;
+
+ switch(type){
+ case DWT_DIRAC_DD9_7:
+ spatial_compose_dd97i_init(d->cs+level, buffer, hl, stride_l);
+ break;
+ case DWT_DIRAC_LEGALL5_3:
+ spatial_compose53i_init2(d->cs+level, buffer, hl, stride_l);
+ break;
+ case DWT_DIRAC_DD13_7:
+ spatial_compose_dd137i_init(d->cs+level, buffer, hl, stride_l);
+ break;
+ case DWT_DIRAC_HAAR0:
+ case DWT_DIRAC_HAAR1:
+ d->cs[level].y = 1;
+ break;
+ case DWT_DIRAC_DAUB9_7:
+ spatial_compose97i_init2(d->cs+level, buffer, hl, stride_l);
+ break;
+ default:
+ d->cs[level].y = 0;
+ break;
+ }
+ }
+
+ switch (type) {
+ case DWT_DIRAC_DD9_7:
+ d->spatial_compose = spatial_compose_dd97i_dy;
+ d->vertical_compose_l0 = (void*)vertical_compose53iL0;
+ d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0;
+ d->horizontal_compose = horizontal_compose_dd97i;
+ d->support = 7;
+ break;
+ case DWT_DIRAC_LEGALL5_3:
+ d->spatial_compose = spatial_compose_dirac53i_dy;
+ d->vertical_compose_l0 = (void*)vertical_compose53iL0;
+ d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0;
+ d->horizontal_compose = horizontal_compose_dirac53i;
+ d->support = 3;
+ break;
+ case DWT_DIRAC_DD13_7:
+ d->spatial_compose = spatial_compose_dd137i_dy;
+ d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0;
+ d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0;
+ d->horizontal_compose = horizontal_compose_dd137i;
+ d->support = 7;
+ break;
+ case DWT_DIRAC_HAAR0:
+ case DWT_DIRAC_HAAR1:
+ d->spatial_compose = spatial_compose_haari_dy;
+ d->vertical_compose = (void*)vertical_compose_haar;
+ if (type == DWT_DIRAC_HAAR0)
+ d->horizontal_compose = horizontal_compose_haar0i;
+ else
+ d->horizontal_compose = horizontal_compose_haar1i;
+ d->support = 1;
+ break;
+ case DWT_DIRAC_FIDELITY:
+ d->spatial_compose = spatial_compose_fidelity;
+ d->vertical_compose_l0 = (void*)vertical_compose_fidelityiL0;
+ d->vertical_compose_h0 = (void*)vertical_compose_fidelityiH0;
+ d->horizontal_compose = horizontal_compose_fidelityi;
+ break;
+ case DWT_DIRAC_DAUB9_7:
+ d->spatial_compose = spatial_compose_daub97i_dy;
+ d->vertical_compose_l0 = (void*)vertical_compose_daub97iL0;
+ d->vertical_compose_h0 = (void*)vertical_compose_daub97iH0;
+ d->vertical_compose_l1 = (void*)vertical_compose_daub97iL1;
+ d->vertical_compose_h1 = (void*)vertical_compose_daub97iH1;
+ d->horizontal_compose = horizontal_compose_daub97i;
+ d->support = 5;
+ break;
+ default:
+ av_log(NULL, AV_LOG_ERROR, "Unknown wavelet type %d\n", type);
+ return -1;
+ }
+
+ if (HAVE_MMX) ff_spatial_idwt_init_mmx(d, type);
+
+ return 0;
+}
+
+void ff_spatial_idwt_slice2(DWTContext *d, int y)
+{
+ int level, support = d->support;
+
+ for (level = d->decomposition_count-1; level >= 0; level--) {
+ int wl = d->width >> level;
+ int hl = d->height >> level;
+ int stride_l = d->stride << level;
+
+ while (d->cs[level].y <= FFMIN((y>>level)+support, hl))
+ d->spatial_compose(d, level, wl, hl, stride_l);
+ }
+}
+
+int ff_spatial_idwt2(IDWTELEM *buffer, int width, int height, int stride,
+ enum dwt_type type, int decomposition_count, IDWTELEM *temp)
+{
+ DWTContext d;
+ int y;
+
+ if (ff_spatial_idwt_init2(&d, buffer, width, height, stride, type, decomposition_count, temp))
+ return -1;
+
+ for (y = 0; y < d.height; y += 4)
+ ff_spatial_idwt_slice2(&d, y);
+
+ return 0;
+}
projects / ffmpeg / blobdiff