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Commit 13a867a6 authored by Jordi Ortiz's avatar Jordi Ortiz Committed by Diego Biurrun
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dwt: K&R prettyprinting cosmetics 

Signed-off-by: 's avatarDiego Biurrun <diego@biurrun.de>
parent db9e00f4
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Showing with 652 additions and 492 deletions
libavcodec/dwt.c
View file @ 13a867a6
...@@ -22,7 +22,9 @@ ...@@ -22,7 +22,9 @@
#include "dsputil.h" #include "dsputil.h"
#include "dwt.h" #include "dwt.h"
void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer) void ff_slice_buffer_init(slice_buffer *buf, int line_count,
int max_allocated_lines, int line_width,
IDWTELEM *base_buffer)
{ {
int i; int i;
...@@ -30,19 +32,18 @@ void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_ ...@@ -30,19 +32,18 @@ void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_
buf->line_count = line_count; buf->line_count = line_count;
buf->line_width = line_width; buf->line_width = line_width;
buf->data_count = max_allocated_lines; buf->data_count = max_allocated_lines;
buf->line = av_mallocz (sizeof(IDWTELEM *) * line_count); buf->line = av_mallocz(sizeof(IDWTELEM *) * line_count);
buf->data_stack = av_malloc (sizeof(IDWTELEM *) * max_allocated_lines); buf->data_stack = av_malloc(sizeof(IDWTELEM *) * max_allocated_lines);
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); buf->data_stack[i] = av_malloc(sizeof(IDWTELEM) * line_width);
}
buf->data_stack_top = max_allocated_lines - 1; buf->data_stack_top = max_allocated_lines - 1;
} }
IDWTELEM * ff_slice_buffer_load_line(slice_buffer * buf, int line) IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line)
{ {
IDWTELEM * buffer; IDWTELEM *buffer;
assert(buf->data_stack_top >= 0); assert(buf->data_stack_top >= 0);
// assert(!buf->line[line]); // assert(!buf->line[line]);
...@@ -56,9 +57,9 @@ IDWTELEM * ff_slice_buffer_load_line(slice_buffer * buf, int line) ...@@ -56,9 +57,9 @@ IDWTELEM * ff_slice_buffer_load_line(slice_buffer * buf, int line)
return buffer; return buffer;
} }
void ff_slice_buffer_release(slice_buffer * buf, int line) void ff_slice_buffer_release(slice_buffer *buf, int line)
{ {
IDWTELEM * buffer; IDWTELEM *buffer;
assert(line >= 0 && line < buf->line_count); assert(line >= 0 && line < buf->line_count);
assert(buf->line[line]); assert(buf->line[line]);
...@@ -69,710 +70,841 @@ void ff_slice_buffer_release(slice_buffer * buf, int line) ...@@ -69,710 +70,841 @@ void ff_slice_buffer_release(slice_buffer * buf, int line)
buf->line[line] = NULL; buf->line[line] = NULL;
} }
void ff_slice_buffer_flush(slice_buffer * buf) void ff_slice_buffer_flush(slice_buffer *buf)
{ {
int i; int i;
for(i = 0; i < buf->line_count; i++){ for (i = 0; i < buf->line_count; i++)
if (buf->line[i]) if (buf->line[i])
ff_slice_buffer_release(buf, i); ff_slice_buffer_release(buf, i);
}
} }
void ff_slice_buffer_destroy(slice_buffer * buf) void ff_slice_buffer_destroy(slice_buffer *buf)
{ {
int i; int i;
ff_slice_buffer_flush(buf); ff_slice_buffer_flush(buf);
for(i = buf->data_count - 1; i >= 0; i--){ for (i = buf->data_count - 1; i >= 0; i--)
av_freep(&buf->data_stack[i]); av_freep(&buf->data_stack[i]);
}
av_freep(&buf->data_stack); av_freep(&buf->data_stack);
av_freep(&buf->line); av_freep(&buf->line);
} }
static inline int mirror(int v, int m){ static inline int mirror(int v, int m)
while((unsigned)v > (unsigned)m){ {
v=-v; while ((unsigned)v > (unsigned)m) {
if(v<0) v+= 2*m; v = -v;
if (v < 0)
v += 2 * m;
} }
return v; return v;
} }
static av_always_inline void static av_always_inline void lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
int dst_step, int src_step, int ref_step, int dst_step, int src_step, int ref_step,
int width, int mul, int add, int shift, int width, int mul, int add, int shift,
int highpass, int inverse){ int highpass, int inverse)
const int mirror_left= !highpass; {
const int mirror_right= (width&1) ^ highpass; const int mirror_left = !highpass;
const int w= (width>>1) - 1 + (highpass & width); const int mirror_right = (width & 1) ^ highpass;
const int w = (width >> 1) - 1 + (highpass & width);
int i; int i;
#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref))) #define LIFT(src, ref, inv) ((src) + ((inv) ? -(ref) : +(ref)))
if(mirror_left){ if (mirror_left) {
dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse); dst[0] = LIFT(src[0], ((mul * 2 * ref[0] + add) >> shift), inverse);
dst += dst_step; dst += dst_step;
src += src_step; src += src_step;
} }
for(i=0; i<w; i++){ for (i = 0; i < w; i++)
dst[i*dst_step] = dst[i * dst_step] = LIFT(src[i * src_step],
LIFT(src[i*src_step], ((mul * (ref[i * ref_step] +
((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift), ref[(i + 1) * ref_step]) +
add) >> shift),
inverse); inverse);
}
if(mirror_right){ if (mirror_right)
dst[w*dst_step] = dst[w * dst_step] = LIFT(src[w * src_step],
LIFT(src[w*src_step], ((mul * 2 * ref[w * ref_step] + add) >> shift),
((mul*2*ref[w*ref_step]+add)>>shift),
inverse); inverse);
}
} }
static av_always_inline void static av_always_inline void inv_lift(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref,
inv_lift(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref,
int dst_step, int src_step, int ref_step, int dst_step, int src_step, int ref_step,
int width, int mul, int add, int shift, int width, int mul, int add, int shift,
int highpass, int inverse){ int highpass, int inverse)
const int mirror_left= !highpass; {
const int mirror_right= (width&1) ^ highpass; const int mirror_left = !highpass;
const int w= (width>>1) - 1 + (highpass & width); const int mirror_right = (width & 1) ^ highpass;
const int w = (width >> 1) - 1 + (highpass & width);
int i; int i;
#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref))) #define LIFT(src, ref, inv) ((src) + ((inv) ? -(ref) : +(ref)))
if(mirror_left){ if (mirror_left) {
dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse); dst[0] = LIFT(src[0], ((mul * 2 * ref[0] + add) >> shift), inverse);
dst += dst_step; dst += dst_step;
src += src_step; src += src_step;
} }
for(i=0; i<w; i++){ for (i = 0; i < w; i++)
dst[i*dst_step] = dst[i * dst_step] = LIFT(src[i * src_step],
LIFT(src[i*src_step], ((mul * (ref[i * ref_step] +
((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift), ref[(i + 1) * ref_step]) +
add) >> shift),
inverse); inverse);
}
if(mirror_right){ if (mirror_right) {
dst[w*dst_step] = dst[w * dst_step] = LIFT(src[w * src_step],
LIFT(src[w*src_step], ((mul * 2 * ref[w * ref_step] + add) >> shift),
((mul*2*ref[w*ref_step]+add)>>shift),
inverse); inverse);
} }
} }
#ifndef liftS #ifndef liftS
static av_always_inline void static av_always_inline void liftS(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
liftS(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
int dst_step, int src_step, int ref_step, int dst_step, int src_step, int ref_step,
int width, int mul, int add, int shift, int width, int mul, int add, int shift,
int highpass, int inverse){ int highpass, int inverse)
const int mirror_left= !highpass; {
const int mirror_right= (width&1) ^ highpass; const int mirror_left = !highpass;
const int w= (width>>1) - 1 + (highpass & width); const int mirror_right = (width & 1) ^ highpass;
const int w = (width >> 1) - 1 + (highpass & width);
int i; int i;
assert(shift == 4); assert(shift == 4);
#define LIFTS(src, ref, inv) \ #define LIFTS(src, ref, inv) \
((inv) ? \ ((inv) ? (src) + (((ref) + 4 * (src)) >> shift) \
(src) + (((ref) + 4*(src))>>shift): \ : -((-16 * (src) + (ref) + add / \
-((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23))) 4 + 1 + (5 << 25)) / (5 * 4) - (1 << 23)))
if(mirror_left){ if (mirror_left) {
dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse); dst[0] = LIFTS(src[0], mul * 2 * ref[0] + add, inverse);
dst += dst_step; dst += dst_step;
src += src_step; src += src_step;
} }
for(i=0; i<w; i++){ for (i = 0; i < w; i++)
dst[i*dst_step] = dst[i * dst_step] = LIFTS(src[i * src_step],
LIFTS(src[i*src_step], mul * (ref[i * ref_step] +
mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add, ref[(i + 1) * ref_step]) + add,
inverse); inverse);
}
if(mirror_right){ if (mirror_right)
dst[w*dst_step] = dst[w * dst_step] = LIFTS(src[w * src_step],
LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse); mul * 2 * ref[w * ref_step] + add,
} inverse);
} }
static av_always_inline void
inv_liftS(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref, static av_always_inline void inv_liftS(IDWTELEM *dst, IDWTELEM *src,
int dst_step, int src_step, int ref_step, IDWTELEM *ref, int dst_step,
int src_step, int ref_step,
int width, int mul, int add, int shift, int width, int mul, int add, int shift,
int highpass, int inverse){ int highpass, int inverse)
const int mirror_left= !highpass; {
const int mirror_right= (width&1) ^ highpass; const int mirror_left = !highpass;
const int w= (width>>1) - 1 + (highpass & width); const int mirror_right = (width & 1) ^ highpass;
const int w = (width >> 1) - 1 + (highpass & width);
int i; int i;
assert(shift == 4); assert(shift == 4);
#define LIFTS(src, ref, inv) \ #define LIFTS(src, ref, inv) \
((inv) ? \ ((inv) ? (src) + (((ref) + 4 * (src)) >> shift) \
(src) + (((ref) + 4*(src))>>shift): \ : -((-16 * (src) + (ref) + add / \
-((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23))) 4 + 1 + (5 << 25)) / (5 * 4) - (1 << 23)))
if(mirror_left){ if (mirror_left) {
dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse); dst[0] = LIFTS(src[0], mul * 2 * ref[0] + add, inverse);
dst += dst_step; dst += dst_step;
src += src_step; src += src_step;
} }
for(i=0; i<w; i++){ for (i = 0; i < w; i++)
dst[i*dst_step] = dst[i * dst_step] = LIFTS(src[i * src_step],
LIFTS(src[i*src_step], mul * (ref[i * ref_step] +
mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add, ref[(i + 1) * ref_step]) + add,
inverse); inverse);
}
if(mirror_right){ if (mirror_right)
dst[w*dst_step] = dst[w * dst_step] = LIFTS(src[w * src_step],
LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse); mul * 2 * ref[w * ref_step] + add, inverse);
}
} }
#endif /* ! liftS */ #endif /* ! liftS */
static void horizontal_decompose53i(DWTELEM *b, int width){ static void horizontal_decompose53i(DWTELEM *b, int width)
{
DWTELEM temp[width]; DWTELEM temp[width];
const int width2= width>>1; const int width2 = width >> 1;
int x; int x;
const int w2= (width+1)>>1; const int w2 = (width + 1) >> 1;
for(x=0; x<width2; x++){ for (x = 0; x < width2; x++) {
temp[x ]= b[2*x ]; temp[x] = b[2 * x];
temp[x+w2]= b[2*x + 1]; temp[x + w2] = b[2 * x + 1];
} }
if(width&1) if (width & 1)
temp[x ]= b[2*x ]; temp[x] = b[2 * x];
#if 0 #if 0
{ {
int A1,A2,A3,A4; int A1, A2, A3, A4;
A2= temp[1 ]; A2 = temp[1];
A4= temp[0 ]; A4 = temp[0];
A1= temp[0+width2]; A1 = temp[0 + width2];
A1 -= (A2 + A4)>>1; A1 -= (A2 + A4) >> 1;
A4 += (A1 + 1)>>1; A4 += (A1 + 1) >> 1;
b[0+width2] = A1; b[0 + width2] = A1;
b[0 ] = A4; b[0] = A4;
for(x=1; x+1<width2; x+=2){ for (x = 1; x + 1 < width2; x += 2) {
A3= temp[x+width2]; A3 = temp[x + width2];
A4= temp[x+1 ]; A4 = temp[x + 1];
A3 -= (A2 + A4)>>1; A3 -= (A2 + A4) >> 1;
A2 += (A1 + A3 + 2)>>2; A2 += (A1 + A3 + 2) >> 2;
b[x+width2] = A3; b[x + width2] = A3;
b[x ] = A2; b[x] = A2;
A1= temp[x+1+width2]; A1 = temp[x + 1 + width2];
A2= temp[x+2 ]; A2 = temp[x + 2];
A1 -= (A2 + A4)>>1; A1 -= (A2 + A4) >> 1;
A4 += (A1 + A3 + 2)>>2; A4 += (A1 + A3 + 2) >> 2;
b[x+1+width2] = A1; b[x + 1 + width2] = A1;
b[x+1 ] = A4; b[x + 1] = A4;
} }
A3= temp[width-1]; A3 = temp[width - 1];
A3 -= A2; A3 -= A2;
A2 += (A1 + A3 + 2)>>2; A2 += (A1 + A3 + 2) >> 2;
b[width -1] = A3; b[width - 1] = A3;
b[width2-1] = A2; b[width2 - 1] = A2;
} }
#else #else
lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0); lift(b + w2, temp + w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0);
lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0); lift(b, temp, b + w2, 1, 1, 1, width, 1, 2, 2, 0, 0);
#endif /* 0 */ #endif /* 0 */
} }
static void vertical_decompose53iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ static void vertical_decompose53iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] -= (b0[i] + b2[i])>>1; b1[i] -= (b0[i] + b2[i]) >> 1;
}
} }
static void vertical_decompose53iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ static void vertical_decompose53iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] += (b0[i] + b2[i] + 2)>>2; 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, int width, int height,
int stride)
{
int y; int y;
DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride; DWTELEM *b0 = buffer + mirror(-2 - 1, height - 1) * stride;
DWTELEM *b1= buffer + mirror(-2 , height-1)*stride; DWTELEM *b1 = buffer + mirror(-2, height - 1) * stride;
for(y=-2; y<height; y+=2){ for (y = -2; y < height; y += 2) {
DWTELEM *b2= buffer + mirror(y+1, height-1)*stride; DWTELEM *b2 = buffer + mirror(y + 1, height - 1) * stride;
DWTELEM *b3= buffer + mirror(y+2, height-1)*stride; DWTELEM *b3 = buffer + mirror(y + 2, height - 1) * stride;
if(y+1<(unsigned)height) horizontal_decompose53i(b2, width); if (y + 1 < (unsigned)height)
if(y+2<(unsigned)height) horizontal_decompose53i(b3, width); horizontal_decompose53i(b2, width);
if (y + 2 < (unsigned)height)
horizontal_decompose53i(b3, width);
if(y+1<(unsigned)height) vertical_decompose53iH0(b1, b2, b3, width); if (y + 1 < (unsigned)height)
if(y+0<(unsigned)height) vertical_decompose53iL0(b0, b1, b2, width); vertical_decompose53iH0(b1, b2, b3, width);
if (y + 0 < (unsigned)height)
vertical_decompose53iL0(b0, b1, b2, width);
b0=b2; b0 = b2;
b1=b3; b1 = b3;
} }
} }
static void horizontal_decompose97i(DWTELEM *b, int width){ static void horizontal_decompose97i(DWTELEM *b, int width)
{
DWTELEM temp[width]; DWTELEM temp[width];
const int w2= (width+1)>>1; const int w2 = (width + 1) >> 1;
lift (temp+w2, b +1, b , 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1); lift(temp + w2, b + 1, b, 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1);
liftS(temp , b , temp+w2, 1, 2, 1, width, W_BM, W_BO, W_BS, 0, 0); liftS(temp, b, temp + w2, 1, 2, 1, width, W_BM, W_BO, W_BS, 0, 0);
lift (b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0); lift(b + w2, temp + w2, temp, 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0);
lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0); lift(b, temp, b + w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0);
} }
static void vertical_decompose97iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2,
static void vertical_decompose97iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] -= (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; b1[i] -= (W_AM * (b0[i] + b2[i]) + W_AO) >> W_AS;
}
} }
static void vertical_decompose97iH1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ static void vertical_decompose97iH1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] += (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS; b1[i] += (W_CM * (b0[i] + b2[i]) + W_CO) >> W_CS;
}
} }
static void vertical_decompose97iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ static void vertical_decompose97iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
#ifdef liftS #ifdef liftS
b1[i] -= (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS; b1[i] -= (W_BM * (b0[i] + b2[i]) + W_BO) >> W_BS;
#else #else
b1[i] = (16*4*b1[i] - 4*(b0[i] + b2[i]) + W_BO*5 + (5<<27)) / (5*16) - (1<<23); b1[i] = (16 * 4 * b1[i] - 4 * (b0[i] + b2[i]) + W_BO * 5 + (5 << 27)) /
(5 * 16) - (1 << 23);
#endif #endif
}
} }
static void vertical_decompose97iL1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ static void vertical_decompose97iL1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] += (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS; 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, int width, int height,
int stride)
{
int y; int y;
DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride; DWTELEM *b0 = buffer + mirror(-4 - 1, height - 1) * stride;
DWTELEM *b1= buffer + mirror(-4 , height-1)*stride; DWTELEM *b1 = buffer + mirror(-4, height - 1) * stride;
DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride; DWTELEM *b2 = buffer + mirror(-4 + 1, height - 1) * stride;
DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride; DWTELEM *b3 = buffer + mirror(-4 + 2, height - 1) * stride;
for(y=-4; y<height; y+=2){ for (y = -4; y < height; y += 2) {
DWTELEM *b4= buffer + mirror(y+3, height-1)*stride; DWTELEM *b4 = buffer + mirror(y + 3, height - 1) * stride;
DWTELEM *b5= buffer + mirror(y+4, height-1)*stride; DWTELEM *b5 = buffer + mirror(y + 4, height - 1) * stride;
if(y+3<(unsigned)height) horizontal_decompose97i(b4, width); if (y + 3 < (unsigned)height)
if(y+4<(unsigned)height) horizontal_decompose97i(b5, width); horizontal_decompose97i(b4, width);
if (y + 4 < (unsigned)height)
if(y+3<(unsigned)height) vertical_decompose97iH0(b3, b4, b5, width); horizontal_decompose97i(b5, width);
if(y+2<(unsigned)height) vertical_decompose97iL0(b2, b3, b4, width);
if(y+1<(unsigned)height) vertical_decompose97iH1(b1, b2, b3, width); if (y + 3 < (unsigned)height)
if(y+0<(unsigned)height) vertical_decompose97iL1(b0, b1, b2, width); vertical_decompose97iH0(b3, b4, b5, width);
if (y + 2 < (unsigned)height)
b0=b2; vertical_decompose97iL0(b2, b3, b4, width);
b1=b3; if (y + 1 < (unsigned)height)
b2=b4; vertical_decompose97iH1(b1, b2, b3, width);
b3=b5; if (y + 0 < (unsigned)height)
} vertical_decompose97iL1(b0, b1, b2, width);
}
b0 = b2;
void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){ b1 = b3;
b2 = b4;
b3 = b5;
}
}
void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride,
int type, int decomposition_count)
{
int level; int level;
for(level=0; level<decomposition_count; level++){ for (level = 0; level < decomposition_count; level++) {
switch(type){ switch (type) {
case DWT_97: spatial_decompose97i(buffer, width>>level, height>>level, stride<<level); break; case DWT_97:
case DWT_53: spatial_decompose53i(buffer, width>>level, height>>level, stride<<level); break; spatial_decompose97i(buffer,
width >> level, height >> level,
stride << level);
break;
case DWT_53:
spatial_decompose53i(buffer,
width >> level, height >> level,
stride << level);
break;
} }
} }
} }
static void horizontal_compose53i(IDWTELEM *b, int width){ static void horizontal_compose53i(IDWTELEM *b, int width)
{
IDWTELEM temp[width]; IDWTELEM temp[width];
const int width2= width>>1; const int width2 = width >> 1;
const int w2= (width+1)>>1; const int w2 = (width + 1) >> 1;
int x; int x;
for(x=0; x<width2; x++){ for (x = 0; x < width2; x++) {
temp[2*x ]= b[x ]; temp[2 * x] = b[x];
temp[2*x + 1]= b[x+w2]; temp[2 * x + 1] = b[x + w2];
} }
if(width&1) if (width & 1)
temp[2*x ]= b[x ]; temp[2 * x] = b[x];
b[0] = temp[0] - ((temp[1]+1)>>1); b[0] = temp[0] - ((temp[1] + 1) >> 1);
for(x=2; x<width-1; x+=2){ for (x = 2; x < width - 1; x += 2) {
b[x ] = temp[x ] - ((temp[x-1] + temp[x+1]+2)>>2); b[x] = temp[x] - ((temp[x - 1] + temp[x + 1] + 2) >> 2);
b[x-1] = temp[x-1] + ((b [x-2] + b [x ]+1)>>1); b[x - 1] = temp[x - 1] + ((b[x - 2] + b[x] + 1) >> 1);
} }
if(width&1){ if (width & 1) {
b[x ] = temp[x ] - ((temp[x-1]+1)>>1); b[x] = temp[x] - ((temp[x - 1] + 1) >> 1);
b[x-1] = temp[x-1] + ((b [x-2] + b [x ]+1)>>1); b[x - 1] = temp[x - 1] + ((b[x - 2] + b[x] + 1) >> 1);
}else } else
b[x-1] = temp[x-1] + b[x-2]; b[x - 1] = temp[x - 1] + b[x - 2];
} }
static void vertical_compose53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ static void vertical_compose53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] += (b0[i] + b2[i])>>1; b1[i] += (b0[i] + b2[i]) >> 1;
}
} }
static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] -= (b0[i] + b2[i] + 2)>>2; b1[i] -= (b0[i] + b2[i] + 2) >> 2;
}
} }
static void spatial_compose53i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){ static void spatial_compose53i_buffered_init(DWTCompose *cs, slice_buffer *sb,
cs->b0 = slice_buffer_get_line(sb, mirror(-1-1, height-1) * stride_line); int height, int stride_line)
cs->b1 = slice_buffer_get_line(sb, mirror(-1 , height-1) * stride_line); {
cs->b0 = slice_buffer_get_line(sb,
mirror(-1 - 1, height - 1) * stride_line);
cs->b1 = slice_buffer_get_line(sb, mirror(-1, height - 1) * stride_line);
cs->y = -1; cs->y = -1;
} }
static void spatial_compose53i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){ static void spatial_compose53i_init(DWTCompose *cs, IDWTELEM *buffer,
cs->b0 = buffer + mirror(-1-1, height-1)*stride; int height, int stride)
cs->b1 = buffer + mirror(-1 , height-1)*stride; {
cs->b0 = buffer + mirror(-1 - 1, height - 1) * stride;
cs->b1 = buffer + mirror(-1, height - 1) * stride;
cs->y = -1; cs->y = -1;
} }
static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){ static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer *sb,
int y= cs->y; int width, int height,
int stride_line)
{
int y = cs->y;
IDWTELEM *b0= cs->b0; IDWTELEM *b0 = cs->b0;
IDWTELEM *b1= cs->b1; IDWTELEM *b1 = cs->b1;
IDWTELEM *b2= slice_buffer_get_line(sb, mirror(y+1, height-1) * stride_line); IDWTELEM *b2 = slice_buffer_get_line(sb,
IDWTELEM *b3= slice_buffer_get_line(sb, mirror(y+2, height-1) * stride_line); mirror(y + 1, height - 1) *
stride_line);
IDWTELEM *b3 = slice_buffer_get_line(sb,
mirror(y + 2, height - 1) *
stride_line);
if(y+1<(unsigned)height && y<(unsigned)height){ if (y + 1 < (unsigned)height && y < (unsigned)height) {
int x; int x;
for(x=0; x<width; x++){ for (x = 0; x < width; x++) {
b2[x] -= (b1[x] + b3[x] + 2)>>2; b2[x] -= (b1[x] + b3[x] + 2) >> 2;
b1[x] += (b0[x] + b2[x])>>1; b1[x] += (b0[x] + b2[x]) >> 1;
} }
}else{ } else {
if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width); if (y + 1 < (unsigned)height)
if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width); vertical_compose53iL0(b1, b2, b3, width);
if (y + 0 < (unsigned)height)
vertical_compose53iH0(b0, b1, b2, width);
} }
if(y-1<(unsigned)height) horizontal_compose53i(b0, width); if (y - 1 < (unsigned)height)
if(y+0<(unsigned)height) horizontal_compose53i(b1, width); horizontal_compose53i(b0, width);
if (y + 0 < (unsigned)height)
horizontal_compose53i(b1, width);
cs->b0 = b2; cs->b0 = b2;
cs->b1 = b3; cs->b1 = b3;
cs->y += 2; 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, int width,
int y= cs->y; int height, int stride)
IDWTELEM *b0= cs->b0; {
IDWTELEM *b1= cs->b1; int y = cs->y;
IDWTELEM *b2= buffer + mirror(y+1, height-1)*stride; IDWTELEM *b0 = cs->b0;
IDWTELEM *b3= buffer + mirror(y+2, height-1)*stride; IDWTELEM *b1 = cs->b1;
IDWTELEM *b2 = buffer + mirror(y + 1, height - 1) * stride;
IDWTELEM *b3 = buffer + mirror(y + 2, height - 1) * stride;
if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width); if (y + 1 < (unsigned)height)
if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width); vertical_compose53iL0(b1, b2, b3, width);
if (y + 0 < (unsigned)height)
vertical_compose53iH0(b0, b1, b2, width);
if(y-1<(unsigned)height) horizontal_compose53i(b0, width); if (y - 1 < (unsigned)height)
if(y+0<(unsigned)height) horizontal_compose53i(b1, width); horizontal_compose53i(b0, width);
if (y + 0 < (unsigned)height)
horizontal_compose53i(b1, width);
cs->b0 = b2; cs->b0 = b2;
cs->b1 = b3; cs->b1 = b3;
cs->y += 2; 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, int width,
int height, int stride)
{
DWTCompose cs; DWTCompose cs;
spatial_compose53i_init(&cs, buffer, height, stride); spatial_compose53i_init(&cs, buffer, height, stride);
while(cs.y <= height) while (cs.y <= height)
spatial_compose53i_dy(&cs, buffer, width, height, stride); spatial_compose53i_dy(&cs, buffer, width, height, stride);
} }
void ff_snow_horizontal_compose97i(IDWTELEM *b, int width)
void ff_snow_horizontal_compose97i(IDWTELEM *b, int width){ {
IDWTELEM temp[width]; IDWTELEM temp[width];
const int w2= (width+1)>>1; const int w2 = (width + 1) >> 1;
#if 0 //maybe more understadable but slower #if 0 //maybe more understadable but slower
inv_lift (temp , b , b +w2, 2, 1, 1, width, W_DM, W_DO, W_DS, 0, 1); inv_lift(temp, b, b + w2, 2, 1, 1, width, W_DM, W_DO, W_DS, 0, 1);
inv_lift (temp+1 , b +w2, temp , 2, 1, 2, width, W_CM, W_CO, W_CS, 1, 1); inv_lift(temp + 1, b + w2, temp, 2, 1, 2, width, W_CM, W_CO, W_CS, 1, 1);
inv_liftS(b , temp , temp+1 , 2, 2, 2, width, W_BM, W_BO, W_BS, 0, 1); inv_liftS(b, temp, temp + 1, 2, 2, 2, width, W_BM, W_BO, W_BS, 0, 1);
inv_lift (b+1 , temp+1 , b , 2, 2, 2, width, W_AM, W_AO, W_AS, 1, 0); inv_lift(b + 1, temp + 1, b, 2, 2, 2, width, W_AM, W_AO, W_AS, 1, 0);
#else #else
int x; int x;
temp[0] = b[0] - ((3*b[w2]+2)>>2); temp[0] = b[0] - ((3 * b[w2] + 2) >> 2);
for(x=1; x<(width>>1); x++){ for (x = 1; x < (width >> 1); x++) {
temp[2*x ] = b[x ] - ((3*(b [x+w2-1] + b[x+w2])+4)>>3); temp[2 * x] = b[x] - ((3 * (b[x + w2 - 1] + b[x + w2]) + 4) >> 3);
temp[2*x-1] = b[x+w2-1] - temp[2*x-2] - temp[2*x]; temp[2 * x - 1] = b[x + w2 - 1] - temp[2 * x - 2] - temp[2 * x];
} }
if(width&1){ if (width & 1) {
temp[2*x ] = b[x ] - ((3*b [x+w2-1]+2)>>2); temp[2 * x] = b[x] - ((3 * b[x + w2 - 1] + 2) >> 2);
temp[2*x-1] = b[x+w2-1] - temp[2*x-2] - temp[2*x]; temp[2 * x - 1] = b[x + w2 - 1] - temp[2 * x - 2] - temp[2 * x];
}else } else
temp[2*x-1] = b[x+w2-1] - 2*temp[2*x-2]; temp[2 * x - 1] = b[x + w2 - 1] - 2 * temp[2 * x - 2];
b[0] = temp[0] + ((2*temp[0] + temp[1]+4)>>3); b[0] = temp[0] + ((2 * temp[0] + temp[1] + 4) >> 3);
for(x=2; x<width-1; x+=2){ for (x = 2; x < width - 1; x += 2) {
b[x ] = temp[x ] + ((4*temp[x ] + temp[x-1] + temp[x+1]+8)>>4); b[x] = temp[x] + ((4 * temp[x] + temp[x - 1] + temp[x + 1] + 8) >> 4);
b[x-1] = temp[x-1] + ((3*(b [x-2] + b [x ] ))>>1); b[x - 1] = temp[x - 1] + ((3 * (b[x - 2] + b[x])) >> 1);
} }
if(width&1){ if (width & 1) {
b[x ] = temp[x ] + ((2*temp[x ] + temp[x-1]+4)>>3); b[x] = temp[x] + ((2 * temp[x] + temp[x - 1] + 4) >> 3);
b[x-1] = temp[x-1] + ((3*(b [x-2] + b [x ] ))>>1); b[x - 1] = temp[x - 1] + ((3 * (b[x - 2] + b[x])) >> 1);
}else } else
b[x-1] = temp[x-1] + 3*b [x-2]; b[x - 1] = temp[x - 1] + 3 * b[x - 2];
#endif #endif
} }
static void vertical_compose97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ static void vertical_compose97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; b1[i] += (W_AM * (b0[i] + b2[i]) + W_AO) >> W_AS;
}
} }
static void vertical_compose97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ static void vertical_compose97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] -= (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS; b1[i] -= (W_CM * (b0[i] + b2[i]) + W_CO) >> W_CS;
}
} }
static void vertical_compose97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ static void vertical_compose97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
#ifdef liftS #ifdef liftS
b1[i] += (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS; b1[i] += (W_BM * (b0[i] + b2[i]) + W_BO) >> W_BS;
#else #else
b1[i] += (W_BM*(b0[i] + b2[i])+4*b1[i]+W_BO)>>W_BS; b1[i] += (W_BM * (b0[i] + b2[i]) + 4 * b1[i] + W_BO) >> W_BS;
#endif #endif
}
} }
static void vertical_compose97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ static void vertical_compose97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++)
b1[i] -= (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS; b1[i] -= (W_DM * (b0[i] + b2[i]) + W_DO) >> W_DS;
}
} }
void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){ void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
int width)
{
int i; int i;
for(i=0; i<width; i++){ for (i = 0; i < width; i++) {
b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS; b4[i] -= (W_DM * (b3[i] + b5[i]) + W_DO) >> W_DS;
b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS; b3[i] -= (W_CM * (b2[i] + b4[i]) + W_CO) >> W_CS;
#ifdef liftS #ifdef liftS
b2[i] += (W_BM*(b1[i] + b3[i])+W_BO)>>W_BS; b2[i] += (W_BM * (b1[i] + b3[i]) + W_BO) >> W_BS;
#else #else
b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS; b2[i] += (W_BM * (b1[i] + b3[i]) + 4 * b2[i] + W_BO) >> W_BS;
#endif #endif
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; b1[i] += (W_AM * (b0[i] + b2[i]) + W_AO) >> W_AS;
} }
} }
static void spatial_compose97i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){ static void spatial_compose97i_buffered_init(DWTCompose *cs, slice_buffer *sb,
cs->b0 = slice_buffer_get_line(sb, mirror(-3-1, height-1) * stride_line); int height, int stride_line)
cs->b1 = slice_buffer_get_line(sb, mirror(-3 , height-1) * stride_line); {
cs->b2 = slice_buffer_get_line(sb, mirror(-3+1, height-1) * stride_line); cs->b0 = slice_buffer_get_line(sb, mirror(-3 - 1, height - 1) * stride_line);
cs->b3 = slice_buffer_get_line(sb, mirror(-3+2, height-1) * stride_line); cs->b1 = slice_buffer_get_line(sb, mirror(-3, height - 1) * stride_line);
cs->b2 = slice_buffer_get_line(sb, mirror(-3 + 1, height - 1) * stride_line);
cs->b3 = slice_buffer_get_line(sb, mirror(-3 + 2, height - 1) * stride_line);
cs->y = -3; cs->y = -3;
} }
static void spatial_compose97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){ static void spatial_compose97i_init(DWTCompose *cs, IDWTELEM *buffer, int height,
cs->b0 = buffer + mirror(-3-1, height-1)*stride; int stride)
cs->b1 = buffer + mirror(-3 , height-1)*stride; {
cs->b2 = buffer + mirror(-3+1, height-1)*stride; cs->b0 = buffer + mirror(-3 - 1, height - 1) * stride;
cs->b3 = buffer + mirror(-3+2, height-1)*stride; cs->b1 = buffer + mirror(-3, height - 1) * stride;
cs->b2 = buffer + mirror(-3 + 1, height - 1) * stride;
cs->b3 = buffer + mirror(-3 + 2, height - 1) * stride;
cs->y = -3; cs->y = -3;
} }
static void spatial_compose97i_dy_buffered(DWTContext *dsp, DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){ static void spatial_compose97i_dy_buffered(DWTContext *dsp, DWTCompose *cs,
slice_buffer *sb, int width,
int height, int stride_line)
{
int y = cs->y; int y = cs->y;
IDWTELEM *b0= cs->b0; IDWTELEM *b0 = cs->b0;
IDWTELEM *b1= cs->b1; IDWTELEM *b1 = cs->b1;
IDWTELEM *b2= cs->b2; IDWTELEM *b2 = cs->b2;
IDWTELEM *b3= cs->b3; IDWTELEM *b3 = cs->b3;
IDWTELEM *b4= slice_buffer_get_line(sb, mirror(y + 3, height - 1) * stride_line); IDWTELEM *b4 = slice_buffer_get_line(sb,
IDWTELEM *b5= slice_buffer_get_line(sb, mirror(y + 4, height - 1) * stride_line); mirror(y + 3, height - 1) *
stride_line);
if(y>0 && y+4<height){ IDWTELEM *b5 = slice_buffer_get_line(sb,
mirror(y + 4, height - 1) *
stride_line);
if (y > 0 && y + 4 < height) {
dsp->vertical_compose97i(b0, b1, b2, b3, b4, b5, width); dsp->vertical_compose97i(b0, b1, b2, b3, b4, b5, width);
}else{ } else {
if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width); if (y + 3 < (unsigned)height)
if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width); vertical_compose97iL1(b3, b4, b5, width);
if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width); if (y + 2 < (unsigned)height)
if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width); vertical_compose97iH1(b2, b3, b4, width);
} if (y + 1 < (unsigned)height)
vertical_compose97iL0(b1, b2, b3, width);
if(y-1<(unsigned)height) dsp->horizontal_compose97i(b0, width); if (y + 0 < (unsigned)height)
if(y+0<(unsigned)height) dsp->horizontal_compose97i(b1, width); vertical_compose97iH0(b0, b1, b2, width);
}
if (y - 1 < (unsigned)height)
dsp->horizontal_compose97i(b0, width);
if (y + 0 < (unsigned)height)
dsp->horizontal_compose97i(b1, width);
cs->b0=b2; cs->b0 = b2;
cs->b1=b3; cs->b1 = b3;
cs->b2=b4; cs->b2 = b4;
cs->b3=b5; cs->b3 = b5;
cs->y += 2; 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, int width,
int height, int stride)
{
int y = cs->y; int y = cs->y;
IDWTELEM *b0= cs->b0; IDWTELEM *b0 = cs->b0;
IDWTELEM *b1= cs->b1; IDWTELEM *b1 = cs->b1;
IDWTELEM *b2= cs->b2; IDWTELEM *b2 = cs->b2;
IDWTELEM *b3= cs->b3; IDWTELEM *b3 = cs->b3;
IDWTELEM *b4= buffer + mirror(y+3, height-1)*stride; IDWTELEM *b4 = buffer + mirror(y + 3, height - 1) * stride;
IDWTELEM *b5= buffer + mirror(y+4, height-1)*stride; IDWTELEM *b5 = buffer + mirror(y + 4, height - 1) * stride;
if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width); if (y + 3 < (unsigned)height)
if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width); vertical_compose97iL1(b3, b4, b5, width);
if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width); if (y + 2 < (unsigned)height)
if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width); vertical_compose97iH1(b2, b3, b4, width);
if (y + 1 < (unsigned)height)
if(y-1<(unsigned)height) ff_snow_horizontal_compose97i(b0, width); vertical_compose97iL0(b1, b2, b3, width);
if(y+0<(unsigned)height) ff_snow_horizontal_compose97i(b1, width); if (y + 0 < (unsigned)height)
vertical_compose97iH0(b0, b1, b2, width);
cs->b0=b2;
cs->b1=b3; if (y - 1 < (unsigned)height)
cs->b2=b4; ff_snow_horizontal_compose97i(b0, width);
cs->b3=b5; if (y + 0 < (unsigned)height)
ff_snow_horizontal_compose97i(b1, width);
cs->b0 = b2;
cs->b1 = b3;
cs->b2 = b4;
cs->b3 = b5;
cs->y += 2; 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, int width,
int height, int stride)
{
DWTCompose cs; DWTCompose cs;
spatial_compose97i_init(&cs, buffer, height, stride); spatial_compose97i_init(&cs, buffer, height, stride);
while(cs.y <= height) while (cs.y <= height)
spatial_compose97i_dy(&cs, buffer, width, height, stride); spatial_compose97i_dy(&cs, buffer, width, height, stride);
} }
void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count){ void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width,
int height, int stride_line, int type,
int decomposition_count)
{
int level; int level;
for(level=decomposition_count-1; level>=0; level--){ for (level = decomposition_count - 1; level >= 0; level--) {
switch(type){ switch (type) {
case DWT_97: spatial_compose97i_buffered_init(cs+level, sb, height>>level, stride_line<<level); break; case DWT_97:
case DWT_53: spatial_compose53i_buffered_init(cs+level, sb, height>>level, stride_line<<level); break; spatial_compose97i_buffered_init(cs + level, sb, height >> level,
stride_line << level);
break;
case DWT_53:
spatial_compose53i_buffered_init(cs + level, sb, height >> level,
stride_line << level);
break;
} }
} }
} }
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){ void ff_spatial_idwt_buffered_slice(DWTContext *dsp, DWTCompose *cs,
const int support = type==1 ? 3 : 5; slice_buffer *slice_buf, int width,
int height, int stride_line, int type,
int decomposition_count, int y)
{
const int support = type == 1 ? 3 : 5;
int level; int level;
if(type==2) return; if (type == 2)
return;
for(level=decomposition_count-1; level>=0; level--){
while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){ for (level = decomposition_count - 1; level >= 0; level--)
switch(type){ while (cs[level].y <= FFMIN((y >> level) + support, height >> level)) {
case DWT_97: spatial_compose97i_dy_buffered(dsp, cs+level, slice_buf, width>>level, height>>level, stride_line<<level); switch (type) {
case DWT_97:
spatial_compose97i_dy_buffered(dsp, cs + level, slice_buf,
width >> level,
height >> level,
stride_line << level);
break; break;
case DWT_53: spatial_compose53i_dy_buffered(cs+level, slice_buf, width>>level, height>>level, stride_line<<level); case DWT_53:
spatial_compose53i_dy_buffered(cs + level, slice_buf,
width >> level,
height >> level,
stride_line << level);
break; break;
} }
} }
}
} }
static void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){ static void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width,
int height, int stride, int type,
int decomposition_count)
{
int level; int level;
for(level=decomposition_count-1; level>=0; level--){ for (level = decomposition_count - 1; level >= 0; level--) {
switch(type){ switch (type) {
case DWT_97: spatial_compose97i_init(cs+level, buffer, height>>level, stride<<level); break; case DWT_97:
case DWT_53: spatial_compose53i_init(cs+level, buffer, height>>level, stride<<level); break; spatial_compose97i_init(cs + level, buffer, height >> level,
stride << level);
break;
case DWT_53:
spatial_compose53i_init(cs + level, buffer, height >> level,
stride << level);
break;
} }
} }
} }
static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y){ static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width,
const int support = type==1 ? 3 : 5; int height, int stride, int type,
int decomposition_count, int y)
{
const int support = type == 1 ? 3 : 5;
int level; int level;
if(type==2) return; if (type == 2)
return;
for(level=decomposition_count-1; level>=0; level--){
while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){ for (level = decomposition_count - 1; level >= 0; level--)
switch(type){ while (cs[level].y <= FFMIN((y >> level) + support, height >> level)) {
case DWT_97: spatial_compose97i_dy(cs+level, buffer, width>>level, height>>level, stride<<level); switch (type) {
case DWT_97:
spatial_compose97i_dy(cs + level, buffer, width >> level,
height >> level, stride << level);
break; break;
case DWT_53: spatial_compose53i_dy(cs+level, buffer, width>>level, height>>level, stride<<level); case DWT_53:
spatial_compose53i_dy(cs + level, buffer, width >> level,
height >> level, stride << level);
break; break;
} }
} }
}
} }
void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){ void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride,
int type, int decomposition_count)
{
DWTCompose cs[MAX_DECOMPOSITIONS]; DWTCompose cs[MAX_DECOMPOSITIONS];
int y; int y;
ff_spatial_idwt_init(cs, buffer, width, height, stride, type, decomposition_count); ff_spatial_idwt_init(cs, buffer, width, height, stride, type,
for(y=0; y<height; y+=4) decomposition_count);
ff_spatial_idwt_slice(cs, buffer, width, height, stride, type, decomposition_count, y); for (y = 0; y < height; y += 4)
ff_spatial_idwt_slice(cs, buffer, width, height, stride, type,
decomposition_count, y);
} }
static inline int w_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int w, int h, int type){ static inline int w_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size,
int w, int h, int type)
{
int s, i, j; int s, i, j;
const int dec_count= w==8 ? 3 : 4; const int dec_count = w == 8 ? 3 : 4;
int tmp[32*32]; int tmp[32 * 32];
int level, ori; int level, ori;
static const int scale[2][2][4][4]={ static const int scale[2][2][4][4] = {
{ {
{ // 9/7 8x8 dec=3
{ 268, 239, 239, 213 },
{ 0, 224, 224, 152 },
{ 0, 135, 135, 110 },
},
{ // 9/7 16x16 or 32x32 dec=4
{ 344, 310, 310, 280 },
{ 0, 320, 320, 228 },
{ 0, 175, 175, 136 },
{ 0, 129, 129, 102 },
}
},
{ {
// 9/7 8x8 dec=3 { // 5/3 8x8 dec=3
{268, 239, 239, 213}, { 275, 245, 245, 218 },
{ 0, 224, 224, 152}, { 0, 230, 230, 156 },
{ 0, 135, 135, 110}, { 0, 138, 138, 113 },
},{ },
// 9/7 16x16 or 32x32 dec=4 { // 5/3 16x16 or 32x32 dec=4
{344, 310, 310, 280}, { 352, 317, 317, 286 },
{ 0, 320, 320, 228}, { 0, 328, 328, 233 },
{ 0, 175, 175, 136}, { 0, 180, 180, 140 },
{ 0, 129, 129, 102}, { 0, 132, 132, 105 },
}
},{
{
// 5/3 8x8 dec=3
{275, 245, 245, 218},
{ 0, 230, 230, 156},
{ 0, 138, 138, 113},
},{
// 5/3 16x16 or 32x32 dec=4
{352, 317, 317, 286},
{ 0, 328, 328, 233},
{ 0, 180, 180, 140},
{ 0, 132, 132, 105},
} }
} }
}; };
for (i = 0; i < h; i++) { for (i = 0; i < h; i++) {
for (j = 0; j < w; j+=4) { for (j = 0; j < w; j += 4) {
tmp[32*i+j+0] = (pix1[j+0] - pix2[j+0])<<4; tmp[32 * i + j + 0] = (pix1[j + 0] - pix2[j + 0]) << 4;
tmp[32*i+j+1] = (pix1[j+1] - pix2[j+1])<<4; tmp[32 * i + j + 1] = (pix1[j + 1] - pix2[j + 1]) << 4;
tmp[32*i+j+2] = (pix1[j+2] - pix2[j+2])<<4; tmp[32 * i + j + 2] = (pix1[j + 2] - pix2[j + 2]) << 4;
tmp[32*i+j+3] = (pix1[j+3] - pix2[j+3])<<4; tmp[32 * i + j + 3] = (pix1[j + 3] - pix2[j + 3]) << 4;
} }
pix1 += line_size; pix1 += line_size;
pix2 += line_size; pix2 += line_size;
...@@ -780,57 +912,62 @@ static inline int w_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, in ...@@ -780,57 +912,62 @@ static inline int w_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, in
ff_spatial_dwt(tmp, w, h, 32, type, dec_count); ff_spatial_dwt(tmp, w, h, 32, type, dec_count);
s=0; s = 0;
assert(w==h); assert(w == h);
for(level=0; level<dec_count; level++){ for (level = 0; level < dec_count; level++)
for(ori= level ? 1 : 0; ori<4; ori++){ for (ori = level ? 1 : 0; ori < 4; ori++) {
int size= w>>(dec_count-level); int size = w >> (dec_count - level);
int sx= (ori&1) ? size : 0; int sx = (ori & 1) ? size : 0;
int stride= 32<<(dec_count-level); int stride = 32 << (dec_count - level);
int sy= (ori&2) ? stride>>1 : 0; int sy = (ori & 2) ? stride >> 1 : 0;
for(i=0; i<size; i++){ for (i = 0; i < size; i++)
for(j=0; j<size; j++){ for (j = 0; j < size; j++) {
int v= tmp[sx + sy + i*stride + j] * scale[type][dec_count-3][level][ori]; int v = tmp[sx + sy + i * stride + j] *
scale[type][dec_count - 3][level][ori];
s += FFABS(v); s += FFABS(v);
} }
} }
} assert(s >= 0);
} return s >> 9;
assert(s>=0);
return s>>9;
} }
static int w53_8_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h){ static int w53_8_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
return w_c(v, pix1, pix2, line_size, 8, h, 1); return w_c(v, pix1, pix2, line_size, 8, h, 1);
} }
static int w97_8_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h){ static int w97_8_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
return w_c(v, pix1, pix2, line_size, 8, h, 0); return w_c(v, pix1, pix2, line_size, 8, h, 0);
} }
static int w53_16_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h){ static int w53_16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
return w_c(v, pix1, pix2, line_size, 16, h, 1); return w_c(v, pix1, pix2, line_size, 16, h, 1);
} }
static int w97_16_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h){ static int w97_16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
return w_c(v, pix1, pix2, line_size, 16, h, 0); return w_c(v, pix1, pix2, line_size, 16, h, 0);
} }
int ff_w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h){ int ff_w53_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
return w_c(v, pix1, pix2, line_size, 32, h, 1); return w_c(v, pix1, pix2, line_size, 32, h, 1);
} }
int ff_w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h){ int ff_w97_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
return w_c(v, pix1, pix2, line_size, 32, h, 0); return w_c(v, pix1, pix2, line_size, 32, h, 0);
} }
void ff_dsputil_init_dwt(DSPContext *c) void ff_dsputil_init_dwt(DSPContext *c)
{ {
c->w53[0]= w53_16_c; c->w53[0] = w53_16_c;
c->w53[1]= w53_8_c; c->w53[1] = w53_8_c;
c->w97[0]= w97_16_c; c->w97[0] = w97_16_c;
c->w97[1]= w97_8_c; c->w97[1] = w97_8_c;
} }
void ff_dwt_init(DWTContext *c) void ff_dwt_init(DWTContext *c)
...@@ -839,5 +976,6 @@ void ff_dwt_init(DWTContext *c) ...@@ -839,5 +976,6 @@ void ff_dwt_init(DWTContext *c)
c->horizontal_compose97i = ff_snow_horizontal_compose97i; c->horizontal_compose97i = ff_snow_horizontal_compose97i;
c->inner_add_yblock = ff_snow_inner_add_yblock; c->inner_add_yblock = ff_snow_inner_add_yblock;
if (HAVE_MMX) ff_dwt_init_x86(c); if (HAVE_MMX)
ff_dwt_init_x86(c);
} }
libavcodec/dwt.h
View file @ 13a867a6
...@@ -34,21 +34,27 @@ typedef struct { ...@@ -34,21 +34,27 @@ typedef struct {
int y; int y;
} DWTCompose; } DWTCompose;
/** Used to minimize the amount of memory used in order to optimize cache performance. **/ /** Used to minimize the amount of memory used in order to
* optimize cache performance. **/
typedef struct slice_buffer_s { typedef struct slice_buffer_s {
IDWTELEM * * line; ///< For use by idwt and predict_slices. IDWTELEM **line; ///< For use by idwt and predict_slices.
IDWTELEM * * data_stack; ///< Used for internal purposes. IDWTELEM **data_stack; ///< Used for internal purposes.
int data_stack_top; int data_stack_top;
int line_count; int line_count;
int line_width; int line_width;
int data_count; int data_count;
IDWTELEM * base_buffer; ///< Buffer that this structure is caching. IDWTELEM *base_buffer; ///< Buffer that this structure is caching.
} slice_buffer; } slice_buffer;
typedef struct DWTContext { typedef struct DWTContext {
void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width); void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
int width);
void (*horizontal_compose97i)(IDWTELEM *b, int width); void (*horizontal_compose97i)(IDWTELEM *b, int width);
void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8); void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride,
uint8_t **block, int b_w, int b_h, int src_x,
int src_y, int src_stride, slice_buffer *sb,
int add, uint8_t *dst8);
} DWTContext; } DWTContext;
#define MAX_DECOMPOSITIONS 8 #define MAX_DECOMPOSITIONS 8
...@@ -126,27 +132,43 @@ typedef struct DWTContext { ...@@ -126,27 +132,43 @@ typedef struct DWTContext {
#define W_DS 9 #define W_DS 9
#endif #endif
#define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : ff_slice_buffer_load_line((slice_buf), (line_num))) #define slice_buffer_get_line(slice_buf, line_num) \
//#define slice_buffer_get_line(slice_buf, line_num) (ff_slice_buffer_load_line((slice_buf), (line_num))) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] \
: ff_slice_buffer_load_line((slice_buf), \
void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer); (line_num)))
void ff_slice_buffer_release(slice_buffer * buf, int line);
void ff_slice_buffer_flush(slice_buffer * buf); void ff_slice_buffer_init(slice_buffer *buf, int line_count,
void ff_slice_buffer_destroy(slice_buffer * buf); int max_allocated_lines, int line_width,
IDWTELEM * ff_slice_buffer_load_line(slice_buffer * buf, int line); IDWTELEM *base_buffer);
void ff_slice_buffer_release(slice_buffer *buf, int line);
void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width); void ff_slice_buffer_flush(slice_buffer *buf);
void ff_slice_buffer_destroy(slice_buffer *buf);
IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line);
void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
int width);
void ff_snow_horizontal_compose97i(IDWTELEM *b, int width); void ff_snow_horizontal_compose97i(IDWTELEM *b, int width);
void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8); void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride,
uint8_t **block, int b_w, int b_h, int src_x,
int ff_w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h); int src_y, int src_stride, slice_buffer *sb,
int ff_w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h); int add, uint8_t *dst8);
void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count); int ff_w53_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
int ff_w97_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count);
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); void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type,
void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count); int decomposition_count);
void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width,
int height, int stride_line, int type,
int decomposition_count);
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);
void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride,
int type, int decomposition_count);
void ff_dwt_init(DWTContext *c); void ff_dwt_init(DWTContext *c);
void ff_dwt_init_x86(DWTContext *c); void ff_dwt_init_x86(DWTContext *c);
......
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