1064 lines
34 KiB
C
1064 lines
34 KiB
C
/*
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* Radius Cinepak Video Decoder
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*
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* Copyright 2001 Dr. Tim Ferguson (see below)
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* Portions Copyright 2003 Mike McCormack for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* Copyright notice from original source:
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* ------------------------------------------------------------------------
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* Radius Cinepak Video Decoder
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*
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* Dr. Tim Ferguson, 2001.
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* For more details on the algorithm:
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* http://www.csse.monash.edu.au/~timf/videocodec.html
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*
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* This is basically a vector quantiser with adaptive vector density. The
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* frame is segmented into 4x4 pixel blocks, and each block is coded using
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* either 1 or 4 vectors.
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*
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* There are still some issues with this code yet to be resolved. In
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* particular with decoding in the strip boundaries. However, I have not
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* yet found a sequence it doesn't work on. Ill keep trying :)
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*
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* You may freely use this source code. I only ask that you reference its
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* source in your projects documentation:
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* Tim Ferguson: http://www.csse.monash.edu.au/~timf/
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* ------------------------------------------------------------------------ */
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "commdlg.h"
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#include "vfw.h"
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#include "mmsystem.h"
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#include "iccvid_private.h"
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#include "wine/debug.h"
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#include "wine/heap.h"
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WINE_DEFAULT_DEBUG_CHANNEL(iccvid);
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static HINSTANCE ICCVID_hModule;
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#define ICCVID_MAGIC mmioFOURCC('c', 'v', 'i', 'd')
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#define compare_fourcc(fcc1, fcc2) (((fcc1)^(fcc2))&~0x20202020)
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#define MAX_STRIPS 32
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/* ------------------------------------------------------------------------ */
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typedef struct
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{
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unsigned char y0, y1, y2, y3;
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char u, v;
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unsigned char r[4], g[4], b[4];
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} cvid_codebook;
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typedef struct {
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cvid_codebook *v4_codebook[MAX_STRIPS];
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cvid_codebook *v1_codebook[MAX_STRIPS];
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unsigned int strip_num;
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} cinepak_info;
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typedef struct _ICCVID_Info
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{
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DWORD dwMagic;
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int bits_per_pixel;
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cinepak_info *cvinfo;
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} ICCVID_Info;
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/* ------------------------------------------------------------------------ */
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static unsigned char *in_buffer, uiclip[1024], *uiclp = NULL;
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#define get_byte() *(in_buffer++)
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#define skip_byte() in_buffer++
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#define get_word() ((unsigned short)(in_buffer += 2, \
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(in_buffer[-2] << 8 | in_buffer[-1])))
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#define get_long() ((unsigned long)(in_buffer += 4, \
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(in_buffer[-4] << 24 | in_buffer[-3] << 16 | in_buffer[-2] << 8 | in_buffer[-1])))
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/* ---------------------------------------------------------------------- */
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static inline void read_codebook(cvid_codebook *c, int mode)
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{
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int uvr, uvg, uvb;
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if(mode) /* black and white */
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{
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c->y0 = get_byte();
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c->y1 = get_byte();
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c->y2 = get_byte();
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c->y3 = get_byte();
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c->u = c->v = 0;
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c->r[0] = c->g[0] = c->b[0] = c->y0;
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c->r[1] = c->g[1] = c->b[1] = c->y1;
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c->r[2] = c->g[2] = c->b[2] = c->y2;
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c->r[3] = c->g[3] = c->b[3] = c->y3;
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}
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else /* colour */
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{
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c->y0 = get_byte(); /* luma */
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c->y1 = get_byte();
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c->y2 = get_byte();
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c->y3 = get_byte();
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c->u = get_byte(); /* chroma */
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c->v = get_byte();
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uvr = c->v << 1;
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uvg = -((c->u+1) >> 1) - c->v;
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uvb = c->u << 1;
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c->r[0] = uiclp[c->y0 + uvr]; c->g[0] = uiclp[c->y0 + uvg]; c->b[0] = uiclp[c->y0 + uvb];
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c->r[1] = uiclp[c->y1 + uvr]; c->g[1] = uiclp[c->y1 + uvg]; c->b[1] = uiclp[c->y1 + uvb];
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c->r[2] = uiclp[c->y2 + uvr]; c->g[2] = uiclp[c->y2 + uvg]; c->b[2] = uiclp[c->y2 + uvb];
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c->r[3] = uiclp[c->y3 + uvr]; c->g[3] = uiclp[c->y3 + uvg]; c->b[3] = uiclp[c->y3 + uvb];
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}
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}
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static inline long get_addr(BOOL inverted, unsigned long x, unsigned long y,
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int frm_stride, int bpp, unsigned int out_height)
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{
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/* Returns the starting position of a line from top-down or bottom-up */
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if (inverted)
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return y * frm_stride + x * bpp;
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else
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return (out_height - 1 - y) * frm_stride + x * bpp;
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}
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#define MAKECOLOUR32(r,g,b) (((r) << 16) | ((g) << 8) | (b))
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/*#define MAKECOLOUR24(r,g,b) (((r) << 16) | ((g) << 8) | (b))*/
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#define MAKECOLOUR16(r,g,b) (((r) >> 3) << 11)| (((g) >> 2) << 5)| (((b) >> 3) << 0)
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#define MAKECOLOUR15(r,g,b) (((r) >> 3) << 10)| (((g) >> 3) << 5)| (((b) >> 3) << 0)
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/* ------------------------------------------------------------------------ */
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static void cvid_v1_32(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb)
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{
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unsigned long *vptr = (unsigned long *)frm;
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int row_inc;
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int x, y;
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if (!inverted)
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row_inc = -stride/4;
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else
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row_inc = stride/4;
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/* fill 4x4 block of pixels with colour values from codebook */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < (unsigned long *)limit) return;
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for (x = 0; x < 4; x++)
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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]);
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}
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}
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static inline int get_stride(int width, int depth)
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{
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return ((depth * width + 31) >> 3) & ~3;
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v4_32(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
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{
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unsigned long *vptr = (unsigned long *)frm;
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int row_inc;
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int x, y;
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cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
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if (!inverted)
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row_inc = -stride/4;
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else
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row_inc = stride/4;
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/* fill 4x4 block of pixels with colour values from codebooks */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < (unsigned long *)limit) return;
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for (x = 0; x < 4; x++)
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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]);
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}
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v1_24(unsigned char *vptr, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb)
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{
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int row_inc;
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int x, y;
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if (!inverted)
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row_inc = -stride;
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else
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row_inc = stride;
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/* fill 4x4 block of pixels with colour values from codebook */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < limit) return;
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for (x = 0; x < 4; x++)
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{
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vptr[y*row_inc + x*3 + 0] = cb->b[x/2+(y/2)*2];
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vptr[y*row_inc + x*3 + 1] = cb->g[x/2+(y/2)*2];
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vptr[y*row_inc + x*3 + 2] = cb->r[x/2+(y/2)*2];
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}
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}
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v4_24(unsigned char *vptr, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
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{
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int row_inc;
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cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
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int x, y;
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if (!inverted)
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row_inc = -stride;
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else
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row_inc = stride;
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/* fill 4x4 block of pixels with colour values from codebooks */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < limit) return;
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for (x = 0; x < 4; x++)
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{
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vptr[y*row_inc + x*3 + 0] = cb[x/2+(y/2)*2]->b[x%2+(y%2)*2];
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vptr[y*row_inc + x*3 + 1] = cb[x/2+(y/2)*2]->g[x%2+(y%2)*2];
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vptr[y*row_inc + x*3 + 2] = cb[x/2+(y/2)*2]->r[x%2+(y%2)*2];
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}
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}
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v1_16(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb)
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{
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unsigned short *vptr = (unsigned short *)frm;
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int row_inc;
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int x, y;
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if (!inverted)
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row_inc = -stride/2;
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else
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row_inc = stride/2;
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/* fill 4x4 block of pixels with colour values from codebook */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < (unsigned short *)limit) return;
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for (x = 0; x < 4; x++)
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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]);
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}
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v4_16(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
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{
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unsigned short *vptr = (unsigned short *)frm;
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int row_inc;
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cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
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int x, y;
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if (!inverted)
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row_inc = -stride/2;
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else
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row_inc = stride/2;
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/* fill 4x4 block of pixels with colour values from codebooks */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < (unsigned short *)limit) return;
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for (x = 0; x < 4; x++)
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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]);
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}
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v1_15(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb)
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{
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unsigned short *vptr = (unsigned short *)frm;
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int row_inc;
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int x, y;
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if (!inverted)
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row_inc = -stride/2;
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else
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row_inc = stride/2;
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/* fill 4x4 block of pixels with colour values from codebook */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < (unsigned short *)limit) return;
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for (x = 0; x < 4; x++)
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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]);
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}
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}
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/* ------------------------------------------------------------------------ */
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static void cvid_v4_15(unsigned char *frm, unsigned char *limit, int stride, BOOL inverted,
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cvid_codebook *cb0, cvid_codebook *cb1, cvid_codebook *cb2, cvid_codebook *cb3)
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{
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unsigned short *vptr = (unsigned short *)frm;
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int row_inc;
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cvid_codebook * cb[] = {cb0,cb1,cb2,cb3};
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int x, y;
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if (!inverted)
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row_inc = -stride/2;
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else
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row_inc = stride/2;
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/* fill 4x4 block of pixels with colour values from codebooks */
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for (y = 0; y < 4; y++)
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{
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if (&vptr[y*row_inc] < (unsigned short *)limit) return;
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for (x = 0; x < 4; x++)
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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]);
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}
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}
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/* ------------------------------------------------------------------------
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* Call this function once at the start of the sequence and save the
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* returned context for calls to decode_cinepak().
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*/
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static cinepak_info *decode_cinepak_init(void)
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{
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cinepak_info *cvinfo;
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int i;
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cvinfo = heap_alloc( sizeof (cinepak_info) );
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if( !cvinfo )
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return NULL;
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cvinfo->strip_num = 0;
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if(uiclp == NULL)
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{
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uiclp = uiclip+512;
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for(i = -512; i < 512; i++)
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uiclp[i] = (i < 0 ? 0 : (i > 255 ? 255 : i));
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}
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return cvinfo;
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}
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static void free_cvinfo( cinepak_info *cvinfo )
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{
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unsigned int i;
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for( i=0; i<cvinfo->strip_num; i++ )
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{
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heap_free(cvinfo->v4_codebook[i]);
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heap_free(cvinfo->v1_codebook[i]);
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}
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heap_free( cvinfo );
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}
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typedef void (*fn_cvid_v1)(unsigned char *frm, unsigned char *limit,
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int stride, BOOL inverted, cvid_codebook *cb);
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typedef void (*fn_cvid_v4)(unsigned char *frm, unsigned char *limit,
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int stride, BOOL inverted,
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cvid_codebook *cb0, cvid_codebook *cb1,
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cvid_codebook *cb2, cvid_codebook *cb3);
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/* ------------------------------------------------------------------------
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* This function decodes a buffer containing a Cinepak encoded frame.
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*
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* context - the context created by decode_cinepak_init().
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* buf - the input buffer to be decoded
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* size - the size of the input buffer
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* output - the output frame buffer (24 or 32 bit per pixel)
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* out_width - the width of the output frame
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* out_height - the height of the output frame
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* bit_per_pixel - the number of bits per pixel allocated to the output
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* frame (only 24 or 32 bpp are supported)
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* inverted - if true the output frame is written top-down
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*/
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static void decode_cinepak(cinepak_info *cvinfo, unsigned char *buf, int size,
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unsigned char *output, unsigned int out_width, unsigned int out_height, int bit_per_pixel, BOOL inverted)
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{
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cvid_codebook *v4_codebook, *v1_codebook, *codebook = NULL;
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unsigned long x, y, y_bottom, cnum, strip_id, chunk_id,
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x0, y0, x1, y1, ci, flag, mask;
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long top_size, chunk_size;
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unsigned char *frm_ptr;
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unsigned int i, cur_strip, addr;
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int d0, d1, d2, d3, frm_stride, bpp = 3;
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fn_cvid_v1 cvid_v1 = cvid_v1_24;
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fn_cvid_v4 cvid_v4 = cvid_v4_24;
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struct frame_header
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{
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unsigned char flags;
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unsigned long length;
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unsigned short width;
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unsigned short height;
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unsigned short strips;
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} frame;
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y = 0;
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y_bottom = 0;
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in_buffer = buf;
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frame.flags = get_byte();
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frame.length = get_byte() << 16;
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frame.length |= get_byte() << 8;
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frame.length |= get_byte();
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switch(bit_per_pixel)
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{
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case 15:
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bpp = 2;
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cvid_v1 = cvid_v1_15;
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cvid_v4 = cvid_v4_15;
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break;
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case 16:
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bpp = 2;
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cvid_v1 = cvid_v1_16;
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cvid_v4 = cvid_v4_16;
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break;
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case 24:
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bpp = 3;
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cvid_v1 = cvid_v1_24;
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cvid_v4 = cvid_v4_24;
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break;
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case 32:
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bpp = 4;
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cvid_v1 = cvid_v1_32;
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cvid_v4 = cvid_v4_32;
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break;
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}
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frm_stride = get_stride(out_width, bpp * 8);
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frm_ptr = output;
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|
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if(frame.length != size)
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{
|
|
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;
|
|
}
|