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wine/dlls/iccvid/iccvid.c
Mike McCormack d26f658acb Implement ICM_DECOMPRESSEX, fix some bugs.
2004-01-20 21:50:45 +00:00

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/*
* Radius Cinepak Video Decoder
*
* Copyright 2001 Dr. Tim Ferguson (see below)
* Portions Copyright 2003 Mike McCormack for CodeWeavers
*
* This library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Copyright notice from original source:
* ------------------------------------------------------------------------
* Radius Cinepak Video Decoder
*
* Dr. Tim Ferguson, 2001.
* For more details on the algorithm:
* http://www.csse.monash.edu.au/~timf/videocodec.html
*
* This is basically a vector quantiser with adaptive vector density. The
* frame is segmented into 4x4 pixel blocks, and each block is coded using
* either 1 or 4 vectors.
*
* There are still some issues with this code yet to be resolved. In
* particular with decoding in the strip boundaries. However, I have not
* yet found a sequence it doesn't work on. Ill keep trying :)
*
* You may freely use this source code. I only ask that you reference its
* source in your projects documentation:
* Tim Ferguson: http://www.csse.monash.edu.au/~timf/
* ------------------------------------------------------------------------ */
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "commdlg.h"
#include "vfw.h"
#include "mmsystem.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(iccvid);
#define ICCVID_MAGIC mmioFOURCC('c', 'v', 'i', 'd')
#define DBUG 0
#define MAX_STRIPS 32
/* ------------------------------------------------------------------------ */
typedef struct
{
unsigned char y0, y1, y2, y3;
char u, v;
unsigned long rgb0, rgb1, rgb2, rgb3; /* should be a union */
unsigned char r[4], g[4], b[4];
} cvid_codebook;
typedef struct {
cvid_codebook *v4_codebook[MAX_STRIPS];
cvid_codebook *v1_codebook[MAX_STRIPS];
int strip_num;
} cinepak_info;
typedef struct _ICCVID_Info
{
DWORD dwMagic;
cinepak_info *cvinfo;
} ICCVID_Info;
static inline LPVOID ICCVID_Alloc( size_t size, size_t count )
{
return HeapAlloc( GetProcessHeap(), 0, size*count );
}
static inline BOOL ICCVID_Free( LPVOID ptr )
{
return HeapFree( GetProcessHeap(), 0, ptr );
}
/* ------------------------------------------------------------------------ */
static unsigned char *in_buffer, uiclip[1024], *uiclp = NULL;
#define get_byte() *(in_buffer++)
#define skip_byte() in_buffer++
#define get_word() ((unsigned short)(in_buffer += 2, \
(in_buffer[-2] << 8 | in_buffer[-1])))
#define get_long() ((unsigned long)(in_buffer += 4, \
(in_buffer[-4] << 24 | in_buffer[-3] << 16 | in_buffer[-2] << 8 | in_buffer[-1])))
/* ---------------------------------------------------------------------- */
static inline void read_codebook_32(cvid_codebook *c, int mode)
{
int uvr, uvg, uvb;
if(mode) /* black and white */
{
c->y0 = get_byte();
c->y1 = get_byte();
c->y2 = get_byte();
c->y3 = get_byte();
c->u = c->v = 0;
c->rgb0 = (c->y0 << 16) | (c->y0 << 8) | c->y0;
c->rgb1 = (c->y1 << 16) | (c->y1 << 8) | c->y1;
c->rgb2 = (c->y2 << 16) | (c->y2 << 8) | c->y2;
c->rgb3 = (c->y3 << 16) | (c->y3 << 8) | c->y3;
}
else /* colour */
{
c->y0 = get_byte(); /* luma */
c->y1 = get_byte();
c->y2 = get_byte();
c->y3 = get_byte();
c->u = get_byte(); /* chroma */
c->v = get_byte();
uvr = c->v << 1;
uvg = -((c->u+1) >> 1) - c->v;
uvb = c->u << 1;
c->rgb0 = (uiclp[c->y0 + uvr] << 16) | (uiclp[c->y0 + uvg] << 8) | uiclp[c->y0 + uvb];
c->rgb1 = (uiclp[c->y1 + uvr] << 16) | (uiclp[c->y1 + uvg] << 8) | uiclp[c->y1 + uvb];
c->rgb2 = (uiclp[c->y2 + uvr] << 16) | (uiclp[c->y2 + uvg] << 8) | uiclp[c->y2 + uvb];
c->rgb3 = (uiclp[c->y3 + uvr] << 16) | (uiclp[c->y3 + uvg] << 8) | uiclp[c->y3 + uvb];
}
}
/* ------------------------------------------------------------------------ */
inline void cvid_v1_32(unsigned char *frm, unsigned char *limit, int stride, cvid_codebook *cb)
{
unsigned long *vptr = (unsigned long *)frm, rgb;
int row_inc = stride/4;
#ifndef ORIGINAL
vptr += row_inc*3;
#endif
vptr[0] = rgb = cb->rgb0; vptr[1] = rgb;
vptr[2] = rgb = cb->rgb1; vptr[3] = rgb;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < (unsigned long *)limit) return;
#else
vptr += row_inc; if(vptr > (unsigned long *)limit) return;
#endif
vptr[0] = rgb = cb->rgb0; vptr[1] = rgb;
vptr[2] = rgb = cb->rgb1; vptr[3] = rgb;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < (unsigned long *)limit) return;
#else
vptr += row_inc; if(vptr > (unsigned long *)limit) return;
#endif
vptr[0] = rgb = cb->rgb2; vptr[1] = rgb;
vptr[2] = rgb = cb->rgb3; vptr[3] = rgb;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < (unsigned long *)limit) return;
#else
vptr += row_inc; if(vptr > (unsigned long *)limit) return;
#endif
vptr[0] = rgb = cb->rgb2; vptr[1] = rgb;
vptr[2] = rgb = cb->rgb3; vptr[3] = rgb;
}
/* ------------------------------------------------------------------------ */
inline void cvid_v4_32(unsigned char *frm, unsigned char *limit, int stride, cvid_codebook *cb0,
cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
{
unsigned long *vptr = (unsigned long *)frm;
int row_inc = stride/4;
#ifndef ORIGINAL
vptr += row_inc*3;
#endif
vptr[0] = cb0->rgb0;
vptr[1] = cb0->rgb1;
vptr[2] = cb1->rgb0;
vptr[3] = cb1->rgb1;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < (unsigned long *)limit) return;
#else
vptr += row_inc; if(vptr > (unsigned long *)limit) return;
#endif
vptr[0] = cb0->rgb2;
vptr[1] = cb0->rgb3;
vptr[2] = cb1->rgb2;
vptr[3] = cb1->rgb3;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < (unsigned long *)limit) return;
#else
vptr += row_inc; if(vptr > (unsigned long *)limit) return;
#endif
vptr[0] = cb2->rgb0;
vptr[1] = cb2->rgb1;
vptr[2] = cb3->rgb0;
vptr[3] = cb3->rgb1;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < (unsigned long *)limit) return;
#else
vptr += row_inc; if(vptr > (unsigned long *)limit) return;
#endif
vptr[0] = cb2->rgb2;
vptr[1] = cb2->rgb3;
vptr[2] = cb3->rgb2;
vptr[3] = cb3->rgb3;
}
/* ---------------------------------------------------------------------- */
static inline void read_codebook_24(cvid_codebook *c, int mode)
{
int uvr, uvg, uvb;
if(mode) /* black and white */
{
c->y0 = get_byte();
c->y1 = get_byte();
c->y2 = get_byte();
c->y3 = get_byte();
c->u = c->v = 0;
c->r[0] = c->g[0] = c->b[0] = c->y0;
c->r[1] = c->g[1] = c->b[1] = c->y1;
c->r[2] = c->g[2] = c->b[2] = c->y2;
c->r[3] = c->g[3] = c->b[3] = c->y3;
}
else /* colour */
{
c->y0 = get_byte(); /* luma */
c->y1 = get_byte();
c->y2 = get_byte();
c->y3 = get_byte();
c->u = get_byte(); /* chroma */
c->v = get_byte();
uvr = c->v << 1;
uvg = -((c->u+1) >> 1) - c->v;
uvb = c->u << 1;
c->r[0] = uiclp[c->y0 + uvr]; c->g[0] = uiclp[c->y0 + uvg]; c->b[0] = uiclp[c->y0 + uvb];
c->r[1] = uiclp[c->y1 + uvr]; c->g[1] = uiclp[c->y1 + uvg]; c->b[1] = uiclp[c->y1 + uvb];
c->r[2] = uiclp[c->y2 + uvr]; c->g[2] = uiclp[c->y2 + uvg]; c->b[2] = uiclp[c->y2 + uvb];
c->r[3] = uiclp[c->y3 + uvr]; c->g[3] = uiclp[c->y3 + uvg]; c->b[3] = uiclp[c->y3 + uvb];
}
}
/* ------------------------------------------------------------------------ */
void cvid_v1_24(unsigned char *vptr, unsigned char *limit, int stride, cvid_codebook *cb)
{
unsigned char r, g, b;
#ifndef ORIGINAL
int row_inc = stride+4*3;
#else
int row_inc = stride-4*3;
#endif
#ifndef ORIGINAL
vptr += (3*row_inc);
#endif
*vptr++ = b = cb->b[0]; *vptr++ = g = cb->g[0]; *vptr++ = r = cb->r[0];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
*vptr++ = b = cb->b[1]; *vptr++ = g = cb->g[1]; *vptr++ = r = cb->r[1];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < limit) return;
#else
vptr += row_inc; if(vptr > limit) return;
#endif
*vptr++ = b = cb->b[0]; *vptr++ = g = cb->g[0]; *vptr++ = r = cb->r[0];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
*vptr++ = b = cb->b[1]; *vptr++ = g = cb->g[1]; *vptr++ = r = cb->r[1];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < limit) return;
#else
vptr += row_inc; if(vptr > limit) return;
#endif
*vptr++ = b = cb->b[2]; *vptr++ = g = cb->g[2]; *vptr++ = r = cb->r[2];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
*vptr++ = b = cb->b[3]; *vptr++ = g = cb->g[3]; *vptr++ = r = cb->r[3];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < limit) return;
#else
vptr += row_inc; if(vptr > limit) return;
#endif
*vptr++ = b = cb->b[2]; *vptr++ = g = cb->g[2]; *vptr++ = r = cb->r[2];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
*vptr++ = b = cb->b[3]; *vptr++ = g = cb->g[3]; *vptr++ = r = cb->r[3];
*vptr++ = b; *vptr++ = g; *vptr++ = r;
}
/* ------------------------------------------------------------------------ */
void cvid_v4_24(unsigned char *vptr, unsigned char *limit, int stride, cvid_codebook *cb0,
cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
{
#ifndef ORIGINAL
int row_inc = stride+4*3;
#else
int row_inc = stride-4*3;
#endif
#ifndef ORIGINAL
vptr += (3*row_inc);
#endif
*vptr++ = cb0->b[0]; *vptr++ = cb0->g[0]; *vptr++ = cb0->r[0];
*vptr++ = cb0->b[1]; *vptr++ = cb0->g[1]; *vptr++ = cb0->r[1];
*vptr++ = cb1->b[0]; *vptr++ = cb1->g[0]; *vptr++ = cb1->r[0];
*vptr++ = cb1->b[1]; *vptr++ = cb1->g[1]; *vptr++ = cb1->r[1];
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < limit) return;
#else
vptr += row_inc; if(vptr > limit) return;
#endif
*vptr++ = cb0->b[2]; *vptr++ = cb0->g[2]; *vptr++ = cb0->r[2];
*vptr++ = cb0->b[3]; *vptr++ = cb0->g[3]; *vptr++ = cb0->r[3];
*vptr++ = cb1->b[2]; *vptr++ = cb1->g[2]; *vptr++ = cb1->r[2];
*vptr++ = cb1->b[3]; *vptr++ = cb1->g[3]; *vptr++ = cb1->r[3];
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < limit) return;
#else
vptr += row_inc; if(vptr > limit) return;
#endif
*vptr++ = cb2->b[0]; *vptr++ = cb2->g[0]; *vptr++ = cb2->r[0];
*vptr++ = cb2->b[1]; *vptr++ = cb2->g[1]; *vptr++ = cb2->r[1];
*vptr++ = cb3->b[0]; *vptr++ = cb3->g[0]; *vptr++ = cb3->r[0];
*vptr++ = cb3->b[1]; *vptr++ = cb3->g[1]; *vptr++ = cb3->r[1];
#ifndef ORIGINAL
vptr -= row_inc; if(vptr < limit) return;
#else
vptr += row_inc; if(vptr > limit) return;
#endif
*vptr++ = cb2->b[2]; *vptr++ = cb2->g[2]; *vptr++ = cb2->r[2];
*vptr++ = cb2->b[3]; *vptr++ = cb2->g[3]; *vptr++ = cb2->r[3];
*vptr++ = cb3->b[2]; *vptr++ = cb3->g[2]; *vptr++ = cb3->r[2];
*vptr++ = cb3->b[3]; *vptr++ = cb3->g[3]; *vptr++ = cb3->r[3];
}
/* ------------------------------------------------------------------------
* Call this function once at the start of the sequence and save the
* returned context for calls to decode_cinepak().
*/
cinepak_info *decode_cinepak_init(void)
{
cinepak_info *cvinfo;
int i;
cvinfo = ICCVID_Alloc( sizeof (cinepak_info), 1 );
if( !cvinfo )
return NULL;
cvinfo->strip_num = 0;
if(uiclp == NULL)
{
uiclp = uiclip+512;
for(i = -512; i < 512; i++)
uiclp[i] = (i < 0 ? 0 : (i > 255 ? 255 : i));
}
return cvinfo;
}
void free_cvinfo( cinepak_info *cvinfo )
{
int i;
for( i=0; i<cvinfo->strip_num; i++ )
{
ICCVID_Free(cvinfo->v4_codebook[i]);
ICCVID_Free(cvinfo->v1_codebook[i]);
}
ICCVID_Free( cvinfo );
}
typedef void (*fn_read_codebook)(cvid_codebook *c, int mode);
typedef void (*fn_cvid_v1)(unsigned char *frm, unsigned char *limit,
int stride, cvid_codebook *cb);
typedef void (*fn_cvid_v4)(unsigned char *frm, unsigned char *limit, int stride,
cvid_codebook *cb0, cvid_codebook *cb1,
cvid_codebook *cb2, cvid_codebook *cb3);
/* ------------------------------------------------------------------------
* This function decodes a buffer containing a Cinepak encoded frame.
*
* context - the context created by decode_cinepak_init().
* buf - the input buffer to be decoded
* size - the size of the input buffer
* frame - the output frame buffer (24 or 32 bit per pixel)
* width - the width of the output frame
* height - the height of the output frame
* bit_per_pixel - the number of bits per pixel allocated to the output
* frame (only 24 or 32 bpp are supported)
*/
void decode_cinepak(cinepak_info *cvinfo, unsigned char *buf, int size,
unsigned char *frame, int width, int height, int bit_per_pixel)
{
cvid_codebook *v4_codebook, *v1_codebook, *codebook = NULL;
unsigned long x, y, y_bottom, frame_flags, strips, cv_width, cv_height,
cnum, strip_id, chunk_id, x0, y0, x1, y1, ci, flag, mask;
long len, top_size, chunk_size;
unsigned char *frm_ptr, *frm_end;
int i, cur_strip, d0, d1, d2, d3, frm_stride, bpp = 3;
fn_read_codebook read_codebook = read_codebook_24;
fn_cvid_v1 cvid_v1 = cvid_v1_24;
fn_cvid_v4 cvid_v4 = cvid_v4_24;
x = y = 0;
y_bottom = 0;
in_buffer = buf;
frame_flags = get_byte();
len = get_byte() << 16;
len |= get_byte() << 8;
len |= get_byte();
switch(bit_per_pixel)
{
case 24:
bpp = 3;
read_codebook = read_codebook_24;
cvid_v1 = cvid_v1_24;
cvid_v4 = cvid_v4_24;
break;
case 32:
bpp = 4;
read_codebook = read_codebook_32;
cvid_v1 = cvid_v1_32;
cvid_v4 = cvid_v4_32;
break;
}
frm_stride = width * bpp;
frm_ptr = frame;
frm_end = frm_ptr + width * height * bpp;
if(len != size)
{
if(len & 0x01) len++; /* AVIs tend to have a size mismatch */
if(len != size)
{
ERR("CVID: corruption %d (QT/AVI) != %ld (CV)\n", size, len);
/* return; */
}
}
cv_width = get_word();
cv_height = get_word();
strips = get_word();
if(strips > cvinfo->strip_num)
{
if(strips >= MAX_STRIPS)
{
ERR("CVID: strip overflow (more than %d)\n", MAX_STRIPS);
return;
}
for(i = cvinfo->strip_num; i < strips; i++)
{
if((cvinfo->v4_codebook[i] = (cvid_codebook *)ICCVID_Alloc(sizeof(cvid_codebook), 260)) == NULL)
{
ERR("CVID: codebook v4 alloc err\n");
return;
}
if((cvinfo->v1_codebook[i] = (cvid_codebook *)ICCVID_Alloc(sizeof(cvid_codebook), 260)) == NULL)
{
ERR("CVID: codebook v1 alloc err\n");
return;
}
}
}
cvinfo->strip_num = strips;
TRACE("CVID: <%ld,%ld> strips %ld\n", cv_width, cv_height, strips);
for(cur_strip = 0; cur_strip < strips; cur_strip++)
{
v4_codebook = cvinfo->v4_codebook[cur_strip];
v1_codebook = cvinfo->v1_codebook[cur_strip];
if((cur_strip > 0) && (!(frame_flags & 0x01)))
{
memcpy(cvinfo->v4_codebook[cur_strip], cvinfo->v4_codebook[cur_strip-1], 260 * sizeof(cvid_codebook));
memcpy(cvinfo->v1_codebook[cur_strip], cvinfo->v1_codebook[cur_strip-1], 260 * sizeof(cvid_codebook));
}
strip_id = get_word(); /* 1000 = key strip, 1100 = iter strip */
top_size = get_word();
y0 = get_word(); /* FIXME: most of these are ignored at the moment */
x0 = get_word();
y1 = get_word();
x1 = get_word();
y_bottom += y1;
top_size -= 12;
x = 0;
if(x1 != width)
WARN("CVID: Warning x1 (%ld) != width (%d)\n", x1, width);
TRACE(" %d) %04lx %04ld <%ld,%ld> <%ld,%ld> yt %ld\n",
cur_strip, strip_id, top_size, x0, y0, x1, y1, y_bottom);
while(top_size > 0)
{
chunk_id = get_word();
chunk_size = get_word();
TRACE(" %04lx %04ld\n", chunk_id, chunk_size);
top_size -= chunk_size;
chunk_size -= 4;
switch(chunk_id)
{
/* -------------------- Codebook Entries -------------------- */
case 0x2000:
case 0x2200:
codebook = (chunk_id == 0x2200 ? v1_codebook : v4_codebook);
cnum = chunk_size/6;
for(i = 0; i < cnum; i++) read_codebook(codebook+i, 0);
break;
case 0x2400:
case 0x2600: /* 8 bit per pixel */
codebook = (chunk_id == 0x2600 ? v1_codebook : v4_codebook);
cnum = chunk_size/4;
for(i = 0; i < cnum; i++) read_codebook(codebook+i, 1);
break;
case 0x2100:
case 0x2300:
codebook = (chunk_id == 0x2300 ? v1_codebook : v4_codebook);
ci = 0;
while(chunk_size > 0)
{
flag = get_long();
chunk_size -= 4;
for(i = 0; i < 32; i++)
{
if(flag & 0x80000000)
{
chunk_size -= 6;
read_codebook(codebook+ci, 0);
}
ci++;
flag <<= 1;
}
}
while(chunk_size > 0) { skip_byte(); chunk_size--; }
break;
case 0x2500:
case 0x2700: /* 8 bit per pixel */
codebook = (chunk_id == 0x2700 ? v1_codebook : v4_codebook);
ci = 0;
while(chunk_size > 0)
{
flag = get_long();
chunk_size -= 4;
for(i = 0; i < 32; i++)
{
if(flag & 0x80000000)
{
chunk_size -= 4;
read_codebook(codebook+ci, 1);
}
ci++;
flag <<= 1;
}
}
while(chunk_size > 0) { skip_byte(); chunk_size--; }
break;
/* -------------------- Frame -------------------- */
case 0x3000:
while((chunk_size > 0) && (y < y_bottom))
{
flag = get_long();
chunk_size -= 4;
for(i = 0; i < 32; i++)
{
if(y >= y_bottom) break;
if(flag & 0x80000000) /* 4 bytes per block */
{
d0 = get_byte();
d1 = get_byte();
d2 = get_byte();
d3 = get_byte();
chunk_size -= 4;
#ifdef ORIGINAL
cvid_v4(frm_ptr + (y * frm_stride + x * bpp), frm_end, frm_stride, v4_codebook+d0, v4_codebook+d1, v4_codebook+d2, v4_codebook+d3);
#else
cvid_v4(frm_ptr + ((height - 1 - y) * frm_stride + x * bpp), frame, frm_stride, v4_codebook+d0, v4_codebook+d1, v4_codebook+d2, v4_codebook+d3);
#endif
}
else /* 1 byte per block */
{
#ifdef ORIGINAL
cvid_v1(frm_ptr + (y * frm_stride + x * bpp), frm_end, frm_stride, v1_codebook + get_byte());
#else
cvid_v1(frm_ptr + ((height - 1 - y) * frm_stride + x * bpp), frame, frm_stride, v1_codebook + get_byte());
#endif
chunk_size--;
}
x += 4;
if(x >= width)
{
x = 0;
y += 4;
}
flag <<= 1;
}
}
while(chunk_size > 0) { skip_byte(); chunk_size--; }
break;
case 0x3100:
while((chunk_size > 0) && (y < y_bottom))
{
/* ---- flag bits: 0 = SKIP, 10 = V1, 11 = V4 ---- */
flag = (unsigned long)get_long();
chunk_size -= 4;
mask = 0x80000000;
while((mask) && (y < y_bottom))
{
if(flag & mask)
{
if(mask == 1)
{
if(chunk_size < 0) break;
flag = (unsigned long)get_long();
chunk_size -= 4;
mask = 0x80000000;
}
else mask >>= 1;
if(flag & mask) /* V4 */
{
d0 = get_byte();
d1 = get_byte();
d2 = get_byte();
d3 = get_byte();
chunk_size -= 4;
#ifdef ORIGINAL
cvid_v4(frm_ptr + (y * frm_stride + x * bpp), frm_end, frm_stride, v4_codebook+d0, v4_codebook+d1, v4_codebook+d2, v4_codebook+d3);
#else
cvid_v4(frm_ptr + ((height - 1 - y) * frm_stride + x * bpp), frame, frm_stride, v4_codebook+d0, v4_codebook+d1, v4_codebook+d2, v4_codebook+d3);
#endif
}
else /* V1 */
{
chunk_size--;
#ifdef ORIGINAL
cvid_v1(frm_ptr + (y * frm_stride + x * bpp), frm_end, frm_stride, v1_codebook + get_byte());
#else
cvid_v1(frm_ptr + ((height - 1 - y) * frm_stride + x * bpp), frame, frm_stride, v1_codebook + get_byte());
#endif
}
} /* else SKIP */
mask >>= 1;
x += 4;
if(x >= width)
{
x = 0;
y += 4;
}
}
}
while(chunk_size > 0) { skip_byte(); chunk_size--; }
break;
case 0x3200: /* each byte is a V1 codebook */
while((chunk_size > 0) && (y < y_bottom))
{
#ifdef ORIGINAL
cvid_v1(frm_ptr + (y * frm_stride + x * bpp), frm_end, frm_stride, v1_codebook + get_byte());
#else
cvid_v1(frm_ptr + ((height - 1 - y) * frm_stride + x * bpp), frame, frm_stride, v1_codebook + get_byte());
#endif
chunk_size--;
x += 4;
if(x >= width)
{
x = 0;
y += 4;
}
}
while(chunk_size > 0) { skip_byte(); chunk_size--; }
break;
default:
ERR("CVID: unknown chunk_id %08lx\n", chunk_id);
while(chunk_size > 0) { skip_byte(); chunk_size--; }
break;
}
}
}
if(len != size)
{
if(len & 0x01) len++; /* AVIs tend to have a size mismatch */
if(len != size)
{
long xlen;
skip_byte();
xlen = get_byte() << 16;
xlen |= get_byte() << 8;
xlen |= get_byte(); /* Read Len */
WARN("CVID: END INFO chunk size %d cvid size1 %ld cvid size2 %ld\n",
size, len, xlen);
}
}
}
LRESULT ICCVID_DecompressQuery( ICCVID_Info *info, LPBITMAPINFO in, LPBITMAPINFO out )
{
TRACE("ICM_DECOMPRESS_QUERY %p %p %p\n", info, in, out);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
TRACE("planes = %d\n", in->bmiHeader.biPlanes );
TRACE("bpp = %d\n", in->bmiHeader.biBitCount );
TRACE("height = %ld\n", in->bmiHeader.biHeight );
TRACE("width = %ld\n", in->bmiHeader.biWidth );
TRACE("compr = %lx\n", in->bmiHeader.biCompression );
if( in->bmiHeader.biCompression != ICCVID_MAGIC )
return ICERR_UNSUPPORTED;
switch( in->bmiHeader.biBitCount )
{
case 24:
case 32:
break;
default:
TRACE("bitcount = %d\n", in->bmiHeader.biBitCount );
return ICERR_UNSUPPORTED;
}
if( out )
{
if( in->bmiHeader.biPlanes != out->bmiHeader.biPlanes )
return ICERR_UNSUPPORTED;
if( in->bmiHeader.biBitCount != out->bmiHeader.biBitCount )
return ICERR_UNSUPPORTED;
if( in->bmiHeader.biHeight != out->bmiHeader.biHeight )
return ICERR_UNSUPPORTED;
if( in->bmiHeader.biWidth != out->bmiHeader.biWidth )
return ICERR_UNSUPPORTED;
}
return ICERR_OK;
}
LRESULT ICCVID_DecompressGetFormat( ICCVID_Info *info, LPBITMAPINFO in, LPBITMAPINFO out )
{
TRACE("ICM_DECOMPRESS_GETFORMAT %p %p %p\n", info, in, out);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
if( out )
{
memcpy( out, in, sizeof (BITMAPINFO) );
out->bmiHeader.biCompression = BI_RGB;
out->bmiHeader.biSizeImage = in->bmiHeader.biHeight
* in->bmiHeader.biWidth *4;
}
return sizeof (BITMAPINFO);
}
LRESULT ICCVID_DecompressBegin( ICCVID_Info *info, LPBITMAPINFO in, LPBITMAPINFO out )
{
TRACE("ICM_DECOMPRESS_BEGIN %p %p %p\n", info, in, out);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
if( info->cvinfo )
free_cvinfo( info->cvinfo );
info->cvinfo = decode_cinepak_init();
return ICERR_OK;
}
LRESULT ICCVID_Decompress( ICCVID_Info *info, ICDECOMPRESS *icd, DWORD size )
{
LONG width, height;
WORD bit_per_pixel;
TRACE("ICM_DECOMPRESS %p %p %ld\n", info, icd, size);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
width = icd->lpbiInput->biWidth;
height = icd->lpbiInput->biHeight;
bit_per_pixel = icd->lpbiInput->biBitCount;
decode_cinepak(info->cvinfo, icd->lpInput, icd->lpbiInput->biSizeImage,
icd->lpOutput, width, height, bit_per_pixel);
return ICERR_OK;
}
LRESULT ICCVID_DecompressEx( ICCVID_Info *info, ICDECOMPRESSEX *icd, DWORD size )
{
LONG width, height;
WORD bit_per_pixel;
TRACE("ICM_DECOMPRESSEX %p %p %ld\n", info, icd, size);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
/* FIXME: flags are ignored */
width = icd->lpbiSrc->biWidth;
height = icd->lpbiSrc->biHeight;
bit_per_pixel = icd->lpbiSrc->biBitCount;
decode_cinepak(info->cvinfo, icd->lpSrc, icd->lpbiSrc->biSizeImage,
icd->lpDst, width, height, bit_per_pixel);
return ICERR_OK;
}
LRESULT ICCVID_Close( ICCVID_Info *info )
{
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return 0;
if( info->cvinfo )
free_cvinfo( info->cvinfo );
ICCVID_Free( info );
return 1;
}
LRESULT WINAPI ICCVID_DriverProc( DWORD dwDriverId, HDRVR hdrvr, UINT msg,
LONG lParam1, LONG lParam2)
{
ICCVID_Info *info = (ICCVID_Info *) dwDriverId;
TRACE("%ld %p %d %ld %ld\n", dwDriverId, hdrvr, msg, lParam1, lParam2);
switch( msg )
{
case DRV_LOAD:
TRACE("Loaded\n");
return 1;
case DRV_ENABLE:
return 0;
case DRV_DISABLE:
return 0;
case DRV_FREE:
return 0;
case DRV_OPEN:
TRACE("Opened\n");
info = ICCVID_Alloc( sizeof (ICCVID_Info), 1 );
if( info )
{
info->dwMagic = ICCVID_MAGIC;
info->cvinfo = NULL;
}
return (LRESULT) info;
case ICM_DECOMPRESS_QUERY:
return ICCVID_DecompressQuery( info, (LPBITMAPINFO) lParam1,
(LPBITMAPINFO) lParam2 );
case ICM_DECOMPRESS_GET_FORMAT:
return ICCVID_DecompressGetFormat( info, (LPBITMAPINFO) lParam1,
(LPBITMAPINFO) lParam2 );
case ICM_DECOMPRESS_BEGIN:
return ICCVID_DecompressBegin( info, (LPBITMAPINFO) lParam1,
(LPBITMAPINFO) lParam2 );
case ICM_DECOMPRESS:
return ICCVID_Decompress( info, (ICDECOMPRESS*) lParam1,
(DWORD) lParam2 );
case ICM_DECOMPRESSEX:
return ICCVID_DecompressEx( info, (ICDECOMPRESSEX*) lParam1,
(DWORD) lParam2 );
case DRV_CLOSE:
return ICCVID_Close( info );
default:
FIXME("Unknown message: %04x %ld %ld\n", msg, lParam1, lParam2);
}
return 0;
}
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