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wine-wine/dlls/iccvid/iccvid.c

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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 "iccvid_private.h"
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(iccvid);
static HINSTANCE ICCVID_hModule;
#define ICCVID_MAGIC mmioFOURCC('c', 'v', 'i', 'd')
#define compare_fourcc(fcc1, fcc2) (((fcc1)^(fcc2))&~0x20202020)
#define MAX_STRIPS 32
/* ------------------------------------------------------------------------ */
typedef struct
{
unsigned char y0, y1, y2, y3;
char u, v;
unsigned char r[4], g[4], b[4];
} cvid_codebook;
typedef struct {
cvid_codebook *v4_codebook[MAX_STRIPS];
cvid_codebook *v1_codebook[MAX_STRIPS];
unsigned int strip_num;
} cinepak_info;
typedef struct _ICCVID_Info
{
DWORD dwMagic;
int bits_per_pixel;
cinepak_info *cvinfo;
} ICCVID_Info;
/* ------------------------------------------------------------------------ */
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(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];
}
}
static inline long get_addr(BOOL inverted, unsigned long x, unsigned long y,
int frm_stride, int bpp, unsigned int out_height)
{
/* Returns the starting position of a line from top-down or bottom-up */
if (inverted)
return y * frm_stride + x * bpp;
else
return (out_height - 1 - y) * frm_stride + x * bpp;
}
#define MAKECOLOUR32(r,g,b) (((r) << 16) | ((g) << 8) | (b))
/*#define MAKECOLOUR24(r,g,b) (((r) << 16) | ((g) << 8) | (b))*/
#define MAKECOLOUR16(r,g,b) (((r) >> 3) << 11)| (((g) >> 2) << 5)| (((b) >> 3) << 0)
#define MAKECOLOUR15(r,g,b) (((r) >> 3) << 10)| (((g) >> 3) << 5)| (((b) >> 3) << 0)
/* ------------------------------------------------------------------------ */
static void cvid_v1_32(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb)
{
unsigned long *vptr = (unsigned long *)frm;
int row_inc;
int x, y;
if (!inverted)
row_inc = -stride/4;
else
row_inc = stride/4;
/* fill 4x4 block of pixels with colour values from codebook */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < (unsigned long *)limit) return;
for (x = 0; x < 4; x++)
vptr[y*row_inc + x] = MAKECOLOUR32(cb->r[x/2+(y/2)*2], cb->g[x/2+(y/2)*2], cb->b[x/2+(y/2)*2]);
}
}
static inline int get_stride(int width, int depth)
{
return ((depth * width + 31) >> 3) & ~3;
}
/* ------------------------------------------------------------------------ */
static void cvid_v4_32(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
{
unsigned long *vptr = (unsigned long *)frm;
int row_inc;
int x, y;
cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
if (!inverted)
row_inc = -stride/4;
else
row_inc = stride/4;
/* fill 4x4 block of pixels with colour values from codebooks */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < (unsigned long *)limit) return;
for (x = 0; x < 4; x++)
vptr[y*row_inc + x] = MAKECOLOUR32(cb[x/2+(y/2)*2]->r[x%2+(y%2)*2], cb[x/2+(y/2)*2]->g[x%2+(y%2)*2], cb[x/2+(y/2)*2]->b[x%2+(y%2)*2]);
}
}
/* ------------------------------------------------------------------------ */
static void cvid_v1_24(unsigned char *vptr, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb)
{
int row_inc;
int x, y;
if (!inverted)
row_inc = -stride;
else
row_inc = stride;
/* fill 4x4 block of pixels with colour values from codebook */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < limit) return;
for (x = 0; x < 4; x++)
{
vptr[y*row_inc + x*3 + 0] = cb->b[x/2+(y/2)*2];
vptr[y*row_inc + x*3 + 1] = cb->g[x/2+(y/2)*2];
vptr[y*row_inc + x*3 + 2] = cb->r[x/2+(y/2)*2];
}
}
}
/* ------------------------------------------------------------------------ */
static void cvid_v4_24(unsigned char *vptr, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
{
int row_inc;
cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
int x, y;
if (!inverted)
row_inc = -stride;
else
row_inc = stride;
/* fill 4x4 block of pixels with colour values from codebooks */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < limit) return;
for (x = 0; x < 4; x++)
{
vptr[y*row_inc + x*3 + 0] = cb[x/2+(y/2)*2]->b[x%2+(y%2)*2];
vptr[y*row_inc + x*3 + 1] = cb[x/2+(y/2)*2]->g[x%2+(y%2)*2];
vptr[y*row_inc + x*3 + 2] = cb[x/2+(y/2)*2]->r[x%2+(y%2)*2];
}
}
}
/* ------------------------------------------------------------------------ */
static void cvid_v1_16(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb)
{
unsigned short *vptr = (unsigned short *)frm;
int row_inc;
int x, y;
if (!inverted)
row_inc = -stride/2;
else
row_inc = stride/2;
/* fill 4x4 block of pixels with colour values from codebook */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < (unsigned short *)limit) return;
for (x = 0; x < 4; x++)
vptr[y*row_inc + x] = MAKECOLOUR16(cb->r[x/2+(y/2)*2], cb->g[x/2+(y/2)*2], cb->b[x/2+(y/2)*2]);
}
}
/* ------------------------------------------------------------------------ */
static void cvid_v4_16(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
{
unsigned short *vptr = (unsigned short *)frm;
int row_inc;
cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
int x, y;
if (!inverted)
row_inc = -stride/2;
else
row_inc = stride/2;
/* fill 4x4 block of pixels with colour values from codebooks */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < (unsigned short *)limit) return;
for (x = 0; x < 4; x++)
vptr[y*row_inc + x] = MAKECOLOUR16(cb[x/2+(y/2)*2]->r[x%2+(y%2)*2], cb[x/2+(y/2)*2]->g[x%2+(y%2)*2], cb[x/2+(y/2)*2]->b[x%2+(y%2)*2]);
}
}
/* ------------------------------------------------------------------------ */
static void cvid_v1_15(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb)
{
unsigned short *vptr = (unsigned short *)frm;
int row_inc;
int x, y;
if (!inverted)
row_inc = -stride/2;
else
row_inc = stride/2;
/* fill 4x4 block of pixels with colour values from codebook */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < (unsigned short *)limit) return;
for (x = 0; x < 4; x++)
vptr[y*row_inc + x] = MAKECOLOUR15(cb->r[x/2+(y/2)*2], cb->g[x/2+(y/2)*2], cb->b[x/2+(y/2)*2]);
}
}
/* ------------------------------------------------------------------------ */
static void cvid_v4_15(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
{
unsigned short *vptr = (unsigned short *)frm;
int row_inc;
cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
int x, y;
if (!inverted)
row_inc = -stride/2;
else
row_inc = stride/2;
/* fill 4x4 block of pixels with colour values from codebooks */
for (y = 0; y < 4; y++)
{
if (&vptr[y*row_inc] < (unsigned short *)limit) return;
for (x = 0; x < 4; x++)
vptr[y*row_inc + x] = MAKECOLOUR15(cb[x/2+(y/2)*2]->r[x%2+(y%2)*2], cb[x/2+(y/2)*2]->g[x%2+(y%2)*2], cb[x/2+(y/2)*2]->b[x%2+(y%2)*2]);
}
}
/* ------------------------------------------------------------------------
* Call this function once at the start of the sequence and save the
* returned context for calls to decode_cinepak().
*/
static cinepak_info *decode_cinepak_init(void)
{
cinepak_info *cvinfo;
int i;
cvinfo = heap_alloc( sizeof (cinepak_info) );
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;
}
static void free_cvinfo( cinepak_info *cvinfo )
{
unsigned int i;
for( i=0; i<cvinfo->strip_num; i++ )
{
heap_free(cvinfo->v4_codebook[i]);
heap_free(cvinfo->v1_codebook[i]);
}
heap_free( cvinfo );
}
typedef void (*fn_cvid_v1)(unsigned char *frm, unsigned char *limit,
int stride, BOOL inverted, cvid_codebook *cb);
typedef void (*fn_cvid_v4)(unsigned char *frm, unsigned char *limit,
int stride, BOOL inverted,
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
* output - the output frame buffer (24 or 32 bit per pixel)
* out_width - the width of the output frame
* out_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)
* inverted - if true the output frame is written top-down
*/
static void decode_cinepak(cinepak_info *cvinfo, unsigned char *buf, int size,
unsigned char *output, unsigned int out_width, unsigned int out_height, int bit_per_pixel, BOOL inverted)
{
cvid_codebook *v4_codebook, *v1_codebook, *codebook = NULL;
unsigned long x, y, y_bottom, cnum, strip_id, chunk_id,
x0, y0, x1, y1, ci, flag, mask;
long top_size, chunk_size;
unsigned char *frm_ptr;
unsigned int i, cur_strip, addr;
int d0, d1, d2, d3, frm_stride, bpp = 3;
fn_cvid_v1 cvid_v1 = cvid_v1_24;
fn_cvid_v4 cvid_v4 = cvid_v4_24;
struct frame_header
{
unsigned char flags;
unsigned long length;
unsigned short width;
unsigned short height;
unsigned short strips;
} frame;
y = 0;
y_bottom = 0;
in_buffer = buf;
frame.flags = get_byte();
frame.length = get_byte() << 16;
frame.length |= get_byte() << 8;
frame.length |= get_byte();
switch(bit_per_pixel)
{
case 15:
bpp = 2;
cvid_v1 = cvid_v1_15;
cvid_v4 = cvid_v4_15;
break;
case 16:
bpp = 2;
cvid_v1 = cvid_v1_16;
cvid_v4 = cvid_v4_16;
break;
case 24:
bpp = 3;
cvid_v1 = cvid_v1_24;
cvid_v4 = cvid_v4_24;
break;
case 32:
bpp = 4;
cvid_v1 = cvid_v1_32;
cvid_v4 = cvid_v4_32;
break;
}
frm_stride = get_stride(out_width, bpp * 8);
frm_ptr = output;
if(frame.length != size)
{
if(frame.length & 0x01) frame.length++; /* AVIs tend to have a size mismatch */
if(frame.length != size)
{
ERR("CVID: corruption %d (QT/AVI) != %ld (CV)\n", size, frame.length);
/* return; */
}
}
frame.width = get_word();
frame.height = get_word();
frame.strips = get_word();
if(frame.strips > cvinfo->strip_num)
{
if(frame.strips >= MAX_STRIPS)
{
ERR("CVID: strip overflow (more than %d)\n", MAX_STRIPS);
return;
}
for(i = cvinfo->strip_num; i < frame.strips; i++)
{
if((cvinfo->v4_codebook[i] = heap_alloc(sizeof(cvid_codebook) * 260)) == NULL)
{
ERR("CVID: codebook v4 alloc err\n");
return;
}
if((cvinfo->v1_codebook[i] = heap_alloc(sizeof(cvid_codebook) * 260)) == NULL)
{
ERR("CVID: codebook v1 alloc err\n");
return;
}
}
}
cvinfo->strip_num = frame.strips;
TRACE("CVID: %ux%u, strips %u, length %lu\n",
frame.width, frame.height, frame.strips, frame.length);
for(cur_strip = 0; cur_strip < frame.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 != out_width)
WARN("CVID: Warning x1 (%ld) != width (%d)\n", x1, out_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;
addr = get_addr(inverted, x, y, frm_stride, bpp, out_height);
cvid_v4(frm_ptr + addr, output, frm_stride, inverted, v4_codebook+d0, v4_codebook+d1, v4_codebook+d2, v4_codebook+d3);
}
else /* 1 byte per block */
{
addr = get_addr(inverted, x, y, frm_stride, bpp, out_height);
cvid_v1(frm_ptr + addr, output, frm_stride, inverted, v1_codebook + get_byte());
chunk_size--;
}
x += 4;
if(x >= out_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 = get_long();
chunk_size -= 4;
mask = 0x80000000;
while((mask) && (y < y_bottom))
{
if(flag & mask)
{
if(mask == 1)
{
if(chunk_size < 0) break;
flag = 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;
addr = get_addr(inverted, x, y, frm_stride, bpp, out_height);
cvid_v4(frm_ptr + addr, output, frm_stride, inverted, v4_codebook+d0, v4_codebook+d1, v4_codebook+d2, v4_codebook+d3);
}
else /* V1 */
{
chunk_size--;
addr = get_addr(inverted, x, y, frm_stride, bpp, out_height);
cvid_v1(frm_ptr + addr, output, frm_stride, inverted, v1_codebook + get_byte());
}
} /* else SKIP */
mask >>= 1;
x += 4;
if(x >= out_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))
{
addr = get_addr(inverted, x, y, frm_stride, bpp, out_height);
cvid_v1(frm_ptr + addr, output, frm_stride, inverted, v1_codebook + get_byte());
chunk_size--;
x += 4;
if(x >= out_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(frame.length != size)
{
if(frame.length & 0x01) frame.length++; /* AVIs tend to have a size mismatch */
if(frame.length != 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, frame.length, xlen);
}
}
}
static void ICCVID_dump_BITMAPINFO(const BITMAPINFO * bmi)
{
TRACE(
"planes = %d\n"
"bpp = %d\n"
"height = %d\n"
"width = %d\n"
"compr = %s\n",
bmi->bmiHeader.biPlanes,
bmi->bmiHeader.biBitCount,
bmi->bmiHeader.biHeight,
bmi->bmiHeader.biWidth,
debugstr_an( (const char *)&bmi->bmiHeader.biCompression, 4 ) );
}
static inline int ICCVID_CheckMask(RGBQUAD bmiColors[3], COLORREF redMask, COLORREF blueMask, COLORREF greenMask)
{
COLORREF realRedMask = MAKECOLOUR32(bmiColors[0].rgbRed, bmiColors[0].rgbGreen, bmiColors[0].rgbBlue);
COLORREF realBlueMask = MAKECOLOUR32(bmiColors[1].rgbRed, bmiColors[1].rgbGreen, bmiColors[1].rgbBlue);
COLORREF realGreenMask = MAKECOLOUR32(bmiColors[2].rgbRed, bmiColors[2].rgbGreen, bmiColors[2].rgbBlue);
TRACE("\nbmiColors[0] = 0x%08x\nbmiColors[1] = 0x%08x\nbmiColors[2] = 0x%08x\n",
realRedMask, realBlueMask, realGreenMask);
if ((realRedMask == redMask) &&
(realBlueMask == blueMask) &&
(realGreenMask == greenMask))
return TRUE;
return FALSE;
}
static 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("in: ");
ICCVID_dump_BITMAPINFO(in);
if( in->bmiHeader.biCompression != ICCVID_MAGIC )
return ICERR_BADFORMAT;
if( out )
{
TRACE("out: ");
ICCVID_dump_BITMAPINFO(out);
if( in->bmiHeader.biPlanes != out->bmiHeader.biPlanes )
return ICERR_BADFORMAT;
if( in->bmiHeader.biHeight != out->bmiHeader.biHeight )
{
if( in->bmiHeader.biHeight != -out->bmiHeader.biHeight )
return ICERR_BADFORMAT;
TRACE("Detected inverted height for video output\n");
}
if( in->bmiHeader.biWidth != out->bmiHeader.biWidth )
return ICERR_BADFORMAT;
switch( out->bmiHeader.biBitCount )
{
case 16:
if ( out->bmiHeader.biCompression == BI_BITFIELDS )
{
if ( !ICCVID_CheckMask(out->bmiColors, 0x7C00, 0x03E0, 0x001F) &&
!ICCVID_CheckMask(out->bmiColors, 0xF800, 0x07E0, 0x001F) )
{
TRACE("unsupported output bit field(s) for 16-bit colors\n");
return ICERR_BADFORMAT;
}
}
break;
case 24:
case 32:
break;
default:
TRACE("unsupported output bitcount = %d\n", out->bmiHeader.biBitCount );
return ICERR_BADFORMAT;
}
}
return ICERR_OK;
}
static LRESULT ICCVID_DecompressGetFormat( ICCVID_Info *info, LPBITMAPINFO in, LPBITMAPINFO out )
{
DWORD size;
TRACE("ICM_DECOMPRESS_GETFORMAT %p %p %p\n", info, in, out);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
size = in->bmiHeader.biSize;
if (in->bmiHeader.biBitCount <= 8)
size += in->bmiHeader.biClrUsed * sizeof(RGBQUAD);
if( out )
{
memcpy( out, in, size );
out->bmiHeader.biBitCount = 24;
out->bmiHeader.biCompression = BI_RGB;
out->bmiHeader.biSizeImage = get_stride(in->bmiHeader.biWidth, 24) * in->bmiHeader.biHeight;
return ICERR_OK;
}
return size;
}
static 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;
info->bits_per_pixel = out->bmiHeader.biBitCount;
if (info->bits_per_pixel == 16)
{
if ( out->bmiHeader.biCompression == BI_BITFIELDS )
{
if ( ICCVID_CheckMask(out->bmiColors, 0x7C00, 0x03E0, 0x001F) )
info->bits_per_pixel = 15;
else if ( ICCVID_CheckMask(out->bmiColors, 0xF800, 0x07E0, 0x001F) )
info->bits_per_pixel = 16;
else
{
TRACE("unsupported output bit field(s) for 16-bit colors\n");
return ICERR_UNSUPPORTED;
}
}
else
info->bits_per_pixel = 15;
}
TRACE("bit_per_pixel = %d\n", info->bits_per_pixel);
if( info->cvinfo )
free_cvinfo( info->cvinfo );
info->cvinfo = decode_cinepak_init();
return ICERR_OK;
}
static LRESULT ICCVID_Decompress( ICCVID_Info *info, ICDECOMPRESS *icd, DWORD size )
{
LONG width, height;
BOOL inverted;
TRACE("ICM_DECOMPRESS %p %p %d\n", info, icd, size);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
if (info->cvinfo==NULL)
{
ERR("ICM_DECOMPRESS sent after ICM_DECOMPRESS_END\n");
return ICERR_BADPARAM;
}
width = icd->lpbiInput->biWidth;
height = icd->lpbiInput->biHeight;
inverted = -icd->lpbiOutput->biHeight == height;
decode_cinepak(info->cvinfo, icd->lpInput, icd->lpbiInput->biSizeImage,
icd->lpOutput, width, height, info->bits_per_pixel, inverted);
return ICERR_OK;
}
static LRESULT ICCVID_DecompressEx( ICCVID_Info *info, ICDECOMPRESSEX *icd, DWORD size )
{
LONG width, height;
BOOL inverted;
TRACE("ICM_DECOMPRESSEX %p %p %d\n", info, icd, size);
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return ICERR_BADPARAM;
if (info->cvinfo==NULL)
{
ERR("ICM_DECOMPRESSEX sent after ICM_DECOMPRESS_END\n");
return ICERR_BADPARAM;
}
/* FIXME: flags are ignored */
width = icd->lpbiSrc->biWidth;
height = icd->lpbiSrc->biHeight;
inverted = -icd->lpbiDst->biHeight == height;
decode_cinepak(info->cvinfo, icd->lpSrc, icd->lpbiSrc->biSizeImage,
icd->lpDst, width, height, info->bits_per_pixel, inverted);
return ICERR_OK;
}
static LRESULT ICCVID_Close( ICCVID_Info *info )
{
if( (info==NULL) || (info->dwMagic!=ICCVID_MAGIC) )
return 0;
if( info->cvinfo )
free_cvinfo( info->cvinfo );
heap_free( info );
return 1;
}
static LRESULT ICCVID_GetInfo( ICCVID_Info *info, ICINFO *icinfo, DWORD dwSize )
{
if (!icinfo) return sizeof(ICINFO);
if (dwSize < sizeof(ICINFO)) return 0;
icinfo->dwSize = sizeof(ICINFO);
icinfo->fccType = ICTYPE_VIDEO;
icinfo->fccHandler = info ? info->dwMagic : ICCVID_MAGIC;
icinfo->dwFlags = 0;
icinfo->dwVersion = ICVERSION;
icinfo->dwVersionICM = ICVERSION;
LoadStringW(ICCVID_hModule, IDS_NAME, icinfo->szName, ARRAY_SIZE(icinfo->szName));
LoadStringW(ICCVID_hModule, IDS_DESCRIPTION, icinfo->szDescription, ARRAY_SIZE(icinfo->szDescription));
/* msvfw32 will fill icinfo->szDriver for us */
return sizeof(ICINFO);
}
static LRESULT ICCVID_DecompressEnd( ICCVID_Info *info )
{
if( info->cvinfo )
{
free_cvinfo( info->cvinfo );
info->cvinfo = NULL;
}
return ICERR_OK;
}
LRESULT WINAPI ICCVID_DriverProc( DWORD_PTR dwDriverId, HDRVR hdrvr, UINT msg,
LPARAM lParam1, LPARAM 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:
{
ICINFO *icinfo = (ICINFO *)lParam2;
TRACE("Opened\n");
if (icinfo && compare_fourcc(icinfo->fccType, ICTYPE_VIDEO)) return 0;
info = heap_alloc( sizeof (ICCVID_Info) );
if( info )
{
info->dwMagic = ICCVID_MAGIC;
info->cvinfo = NULL;
}
return (LRESULT) info;
}
case DRV_CLOSE:
return ICCVID_Close( info );
case ICM_GETINFO:
return ICCVID_GetInfo( info, (ICINFO *)lParam1, (DWORD)lParam2 );
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 ICM_DECOMPRESS_END:
return ICCVID_DecompressEnd( info );
case ICM_COMPRESS_QUERY:
FIXME("compression not implemented\n");
return ICERR_BADFORMAT;
case ICM_CONFIGURE:
return ICERR_UNSUPPORTED;
default:
FIXME("Unknown message: %04x %ld %ld\n", msg, lParam1, lParam2);
}
return ICERR_UNSUPPORTED;
}
BOOL WINAPI DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpReserved)
{
TRACE("(%p,%d,%p)\n", hModule, dwReason, lpReserved);
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hModule);
ICCVID_hModule = hModule;
break;
}
return TRUE;
}
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