+++ /dev/null
-/*
-Copyright (C) 1999-2006 Id Software, Inc. and contributors.
-For a list of contributors, see the accompanying CONTRIBUTORS file.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant 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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-// lbmlib.c
-
-#include "cmdlib.h"
-#include "inout.h"
-#include "lbmlib.h"
-
-
-
-/*
-============================================================================
-
- LBM STUFF
-
-============================================================================
-*/
-
-
-typedef unsigned char UBYTE;
-//conflicts with windows typedef short WORD;
-typedef unsigned short UWORD;
-typedef long LONG;
-
-typedef enum
-{
- ms_none,
- ms_mask,
- ms_transcolor,
- ms_lasso
-} mask_t;
-
-typedef enum
-{
- cm_none,
- cm_rle1
-} compress_t;
-
-typedef struct
-{
- UWORD w,h;
- short x,y;
- UBYTE nPlanes;
- UBYTE masking;
- UBYTE compression;
- UBYTE pad1;
- UWORD transparentColor;
- UBYTE xAspect,yAspect;
- short pageWidth,pageHeight;
-} bmhd_t;
-
-extern bmhd_t bmhd; // will be in native byte order
-
-
-
-#define FORMID ('F'+('O'<<8)+((int)'R'<<16)+((int)'M'<<24))
-#define ILBMID ('I'+('L'<<8)+((int)'B'<<16)+((int)'M'<<24))
-#define PBMID ('P'+('B'<<8)+((int)'M'<<16)+((int)' '<<24))
-#define BMHDID ('B'+('M'<<8)+((int)'H'<<16)+((int)'D'<<24))
-#define BODYID ('B'+('O'<<8)+((int)'D'<<16)+((int)'Y'<<24))
-#define CMAPID ('C'+('M'<<8)+((int)'A'<<16)+((int)'P'<<24))
-
-
-bmhd_t bmhd;
-
-int Align (int l)
-{
- if (l&1)
- return l+1;
- return l;
-}
-
-
-
-/*
-================
-LBMRLEdecompress
-
-Source must be evenly aligned!
-================
-*/
-byte *LBMRLEDecompress (byte *source,byte *unpacked, int bpwidth)
-{
- int count;
- byte b,rept;
-
- count = 0;
-
- do
- {
- rept = *source++;
-
- if (rept > 0x80)
- {
- rept = (rept^0xff)+2;
- b = *source++;
- memset(unpacked,b,rept);
- unpacked += rept;
- }
- else if (rept < 0x80)
- {
- rept++;
- memcpy(unpacked,source,rept);
- unpacked += rept;
- source += rept;
- }
- else
- rept = 0; // rept of 0x80 is NOP
-
- count += rept;
-
- } while (count<bpwidth);
-
- if (count>bpwidth)
- Error ("Decompression exceeded width!\n");
-
-
- return source;
-}
-
-
-/*
-=================
-LoadLBM
-=================
-*/
-void LoadLBM (char *filename, byte **picture, byte **palette)
-{
- byte *LBMbuffer, *picbuffer, *cmapbuffer;
- int y;
- byte *LBM_P, *LBMEND_P;
- byte *pic_p;
- byte *body_p;
-
- int formtype,formlength;
- int chunktype,chunklength;
-
-// qiet compiler warnings
- picbuffer = NULL;
- cmapbuffer = NULL;
-
-//
-// load the LBM
-//
- LoadFile (filename, (void **)&LBMbuffer);
-
-//
-// parse the LBM header
-//
- LBM_P = LBMbuffer;
- if ( *(int *)LBMbuffer != LittleLong(FORMID) )
- Error ("No FORM ID at start of file!\n");
-
- LBM_P += 4;
- formlength = BigLong( *(int *)LBM_P );
- LBM_P += 4;
- LBMEND_P = LBM_P + Align(formlength);
-
- formtype = LittleLong(*(int *)LBM_P);
-
- if (formtype != ILBMID && formtype != PBMID)
- Error ("Unrecognized form type: %c%c%c%c\n", formtype&0xff
- ,(formtype>>8)&0xff,(formtype>>16)&0xff,(formtype>>24)&0xff);
-
- LBM_P += 4;
-
-//
-// parse chunks
-//
-
- while (LBM_P < LBMEND_P)
- {
- chunktype = LBM_P[0] + (LBM_P[1]<<8) + (LBM_P[2]<<16) + (LBM_P[3]<<24);
- LBM_P += 4;
- chunklength = LBM_P[3] + (LBM_P[2]<<8) + (LBM_P[1]<<16) + (LBM_P[0]<<24);
- LBM_P += 4;
-
- switch ( chunktype )
- {
- case BMHDID:
- memcpy (&bmhd,LBM_P,sizeof(bmhd));
- bmhd.w = BigShort(bmhd.w);
- bmhd.h = BigShort(bmhd.h);
- bmhd.x = BigShort(bmhd.x);
- bmhd.y = BigShort(bmhd.y);
- bmhd.pageWidth = BigShort(bmhd.pageWidth);
- bmhd.pageHeight = BigShort(bmhd.pageHeight);
- break;
-
- case CMAPID:
- cmapbuffer = malloc (768);
- memset (cmapbuffer, 0, 768);
- memcpy (cmapbuffer, LBM_P, chunklength);
- break;
-
- case BODYID:
- body_p = LBM_P;
-
- pic_p = picbuffer = malloc (bmhd.w*bmhd.h);
- if (formtype == PBMID)
- {
- //
- // unpack PBM
- //
- for (y=0 ; y<bmhd.h ; y++, pic_p += bmhd.w)
- {
- if (bmhd.compression == cm_rle1)
- body_p = LBMRLEDecompress ((byte *)body_p
- , pic_p , bmhd.w);
- else if (bmhd.compression == cm_none)
- {
- memcpy (pic_p,body_p,bmhd.w);
- body_p += Align(bmhd.w);
- }
- }
-
- }
- else
- {
- //
- // unpack ILBM
- //
- Error ("%s is an interlaced LBM, not packed", filename);
- }
- break;
- }
-
- LBM_P += Align(chunklength);
- }
-
- free (LBMbuffer);
-
- *picture = picbuffer;
-
- if (palette)
- *palette = cmapbuffer;
-}
-
-
-/*
-============================================================================
-
- WRITE LBM
-
-============================================================================
-*/
-
-/*
-==============
-WriteLBMfile
-==============
-*/
-void WriteLBMfile (char *filename, byte *data,
- int width, int height, byte *palette)
-{
- byte *lbm, *lbmptr;
- int *formlength, *bmhdlength, *cmaplength, *bodylength;
- int length;
- bmhd_t basebmhd;
-
- lbm = lbmptr = malloc (width*height+1000);
-
-//
-// start FORM
-//
- *lbmptr++ = 'F';
- *lbmptr++ = 'O';
- *lbmptr++ = 'R';
- *lbmptr++ = 'M';
-
- formlength = (int*)lbmptr;
- lbmptr+=4; // leave space for length
-
- *lbmptr++ = 'P';
- *lbmptr++ = 'B';
- *lbmptr++ = 'M';
- *lbmptr++ = ' ';
-
-//
-// write BMHD
-//
- *lbmptr++ = 'B';
- *lbmptr++ = 'M';
- *lbmptr++ = 'H';
- *lbmptr++ = 'D';
-
- bmhdlength = (int *)lbmptr;
- lbmptr+=4; // leave space for length
-
- memset (&basebmhd,0,sizeof(basebmhd));
- basebmhd.w = BigShort((short)width);
- basebmhd.h = BigShort((short)height);
- basebmhd.nPlanes = BigShort(8);
- basebmhd.xAspect = BigShort(5);
- basebmhd.yAspect = BigShort(6);
- basebmhd.pageWidth = BigShort((short)width);
- basebmhd.pageHeight = BigShort((short)height);
-
- memcpy (lbmptr,&basebmhd,sizeof(basebmhd));
- lbmptr += sizeof(basebmhd);
-
- length = lbmptr-(byte *)bmhdlength-4;
- *bmhdlength = BigLong(length);
- if (length&1)
- *lbmptr++ = 0; // pad chunk to even offset
-
-//
-// write CMAP
-//
- *lbmptr++ = 'C';
- *lbmptr++ = 'M';
- *lbmptr++ = 'A';
- *lbmptr++ = 'P';
-
- cmaplength = (int *)lbmptr;
- lbmptr+=4; // leave space for length
-
- memcpy (lbmptr,palette,768);
- lbmptr += 768;
-
- length = lbmptr-(byte *)cmaplength-4;
- *cmaplength = BigLong(length);
- if (length&1)
- *lbmptr++ = 0; // pad chunk to even offset
-
-//
-// write BODY
-//
- *lbmptr++ = 'B';
- *lbmptr++ = 'O';
- *lbmptr++ = 'D';
- *lbmptr++ = 'Y';
-
- bodylength = (int *)lbmptr;
- lbmptr+=4; // leave space for length
-
- memcpy (lbmptr,data,width*height);
- lbmptr += width*height;
-
- length = lbmptr-(byte *)bodylength-4;
- *bodylength = BigLong(length);
- if (length&1)
- *lbmptr++ = 0; // pad chunk to even offset
-
-//
-// done
-//
- length = lbmptr-(byte *)formlength-4;
- *formlength = BigLong(length);
- if (length&1)
- *lbmptr++ = 0; // pad chunk to even offset
-
-//
-// write output file
-//
- SaveFile (filename, lbm, lbmptr-lbm);
- free (lbm);
-}
-
-
-/*
-============================================================================
-
-LOAD PCX
-
-============================================================================
-*/
-
-typedef struct
-{
- char manufacturer;
- char version;
- char encoding;
- char bits_per_pixel;
- unsigned short xmin,ymin,xmax,ymax;
- unsigned short hres,vres;
- unsigned char palette[48];
- char reserved;
- char color_planes;
- unsigned short bytes_per_line;
- unsigned short palette_type;
- char filler[58];
- unsigned char data; // unbounded
-} pcx_t;
-
-
-/*
-==============
-LoadPCX
-==============
-*/
-void LoadPCX (char *filename, byte **pic, byte **palette, int *width, int *height)
-{
- byte *raw;
- pcx_t *pcx;
- int x, y;
- int len;
- int dataByte, runLength;
- byte *out, *pix;
-
- //
- // load the file
- //
- len = LoadFile (filename, (void **)&raw);
-
- //
- // parse the PCX file
- //
- pcx = (pcx_t *)raw;
- raw = &pcx->data;
-
- pcx->xmin = LittleShort(pcx->xmin);
- pcx->ymin = LittleShort(pcx->ymin);
- pcx->xmax = LittleShort(pcx->xmax);
- pcx->ymax = LittleShort(pcx->ymax);
- pcx->hres = LittleShort(pcx->hres);
- pcx->vres = LittleShort(pcx->vres);
- pcx->bytes_per_line = LittleShort(pcx->bytes_per_line);
- pcx->palette_type = LittleShort(pcx->palette_type);
-
- if (pcx->manufacturer != 0x0a
- || pcx->version != 5
- || pcx->encoding != 1
- || pcx->bits_per_pixel != 8
- || pcx->xmax >= 640
- || pcx->ymax >= 480)
- Error ("Bad pcx file %s", filename);
-
- if (palette)
- {
- *palette = malloc(768);
- memcpy (*palette, (byte *)pcx + len - 768, 768);
- }
-
- if (width)
- *width = pcx->xmax+1;
- if (height)
- *height = pcx->ymax+1;
-
- if (!pic)
- return;
-
- out = malloc ( (pcx->ymax+1) * (pcx->xmax+1) );
- if (!out)
- Error ("Skin_Cache: couldn't allocate");
-
- *pic = out;
-
- pix = out;
-
- for (y=0 ; y<=pcx->ymax ; y++, pix += pcx->xmax+1)
- {
- for (x=0 ; x<=pcx->xmax ; )
- {
- dataByte = *raw++;
-
- if((dataByte & 0xC0) == 0xC0)
- {
- runLength = dataByte & 0x3F;
- dataByte = *raw++;
- }
- else
- runLength = 1;
-
- while(runLength-- > 0)
- pix[x++] = dataByte;
- }
-
- }
-
- if ( raw - (byte *)pcx > len)
- Error ("PCX file %s was malformed", filename);
-
- free (pcx);
-}
-
-/*
-==============
-WritePCXfile
-==============
-*/
-void WritePCXfile (char *filename, byte *data,
- int width, int height, byte *palette)
-{
- int i, j, length;
- pcx_t *pcx;
- byte *pack;
-
- pcx = malloc (width*height*2+1000);
- memset (pcx, 0, sizeof(*pcx));
-
- pcx->manufacturer = 0x0a; // PCX id
- pcx->version = 5; // 256 color
- pcx->encoding = 1; // uncompressed
- pcx->bits_per_pixel = 8; // 256 color
- pcx->xmin = 0;
- pcx->ymin = 0;
- pcx->xmax = LittleShort((short)(width-1));
- pcx->ymax = LittleShort((short)(height-1));
- pcx->hres = LittleShort((short)width);
- pcx->vres = LittleShort((short)height);
- pcx->color_planes = 1; // chunky image
- pcx->bytes_per_line = LittleShort((short)width);
- pcx->palette_type = LittleShort(2); // not a grey scale
-
- // pack the image
- pack = &pcx->data;
-
- for (i=0 ; i<height ; i++)
- {
- for (j=0 ; j<width ; j++)
- {
- if ( (*data & 0xc0) != 0xc0)
- *pack++ = *data++;
- else
- {
- *pack++ = 0xc1;
- *pack++ = *data++;
- }
- }
- }
-
- // write the palette
- *pack++ = 0x0c; // palette ID byte
- for (i=0 ; i<768 ; i++)
- *pack++ = *palette++;
-
-// write output file
- length = pack - (byte *)pcx;
- SaveFile (filename, pcx, length);
-
- free (pcx);
-}
-
-
-/*
-============================================================================
-
-LOAD IMAGE
-
-============================================================================
-*/
-
-/*
-==============
-Load256Image
-
-Will load either an lbm or pcx, depending on extension.
-Any of the return pointers can be NULL if you don't want them.
-==============
-*/
-void Load256Image (char *name, byte **pixels, byte **palette,
- int *width, int *height)
-{
- char ext[128];
-
- ExtractFileExtension (name, ext);
- if (!Q_strncasecmp (ext, "lbm", strlen(ext) ))
- {
- LoadLBM (name, pixels, palette);
- if (width)
- *width = bmhd.w;
- if (height)
- *height = bmhd.h;
- }
- else if (!Q_strncasecmp (ext, "pcx",strlen(ext)))
- {
- LoadPCX (name, pixels, palette, width, height);
- }
- else
- Error ("%s doesn't have a known image extension", name);
-}
-
-
-/*
-==============
-Save256Image
-
-Will save either an lbm or pcx, depending on extension.
-==============
-*/
-void Save256Image (char *name, byte *pixels, byte *palette,
- int width, int height)
-{
- char ext[128];
-
- ExtractFileExtension (name, ext);
- if (!Q_strncasecmp (ext, "lbm",strlen(ext)))
- {
- WriteLBMfile (name, pixels, width, height, palette);
- }
- else if (!Q_strncasecmp (ext, "pcx",strlen(ext)))
- {
- WritePCXfile (name, pixels, width, height, palette);
- }
- else
- Error ("%s doesn't have a known image extension", name);
-}
-
-
-
-
-/*
-============================================================================
-
-TARGA IMAGE
-
-============================================================================
-*/
-
-typedef struct _TargaHeader {
- unsigned char id_length, colormap_type, image_type;
- unsigned short colormap_index, colormap_length;
- unsigned char colormap_size;
- unsigned short x_origin, y_origin, width, height;
- unsigned char pixel_size, attributes;
-} TargaHeader;
-
-int fgetLittleShort (FILE *f)
-{
- byte b1, b2;
-
- b1 = fgetc(f);
- b2 = fgetc(f);
-
- return (short)(b1 + b2*256);
-}
-
-int fgetLittleLong (FILE *f)
-{
- byte b1, b2, b3, b4;
-
- b1 = fgetc(f);
- b2 = fgetc(f);
- b3 = fgetc(f);
- b4 = fgetc(f);
-
- return b1 + (b2<<8) + (b3<<16) + (b4<<24);
-}
-
-
-/*
-=============
-LoadTGA
-=============
-*/
-void LoadTGA (char *name, byte **pixels, int *width, int *height)
-{
- int columns, rows, numPixels;
- byte *pixbuf;
- int row, column;
- FILE *fin;
- byte *targa_rgba;
- TargaHeader targa_header;
-
- fin = fopen (name, "rb");
- if (!fin)
- Error ("Couldn't read %s", name);
-
- targa_header.id_length = fgetc(fin);
- targa_header.colormap_type = fgetc(fin);
- targa_header.image_type = fgetc(fin);
-
- targa_header.colormap_index = fgetLittleShort(fin);
- targa_header.colormap_length = fgetLittleShort(fin);
- targa_header.colormap_size = fgetc(fin);
- targa_header.x_origin = fgetLittleShort(fin);
- targa_header.y_origin = fgetLittleShort(fin);
- targa_header.width = fgetLittleShort(fin);
- targa_header.height = fgetLittleShort(fin);
- targa_header.pixel_size = fgetc(fin);
- targa_header.attributes = fgetc(fin);
-
- if (targa_header.image_type!=2
- && targa_header.image_type!=10)
- Error ("LoadTGA: Only type 2 and 10 targa RGB images supported\n");
-
- if (targa_header.colormap_type !=0
- || (targa_header.pixel_size!=32 && targa_header.pixel_size!=24))
- Error ("Texture_LoadTGA: Only 32 or 24 bit images supported (no colormaps)\n");
-
- columns = targa_header.width;
- rows = targa_header.height;
- numPixels = columns * rows;
-
- if (width)
- *width = columns;
- if (height)
- *height = rows;
- targa_rgba = malloc(numPixels*4);
- *pixels = targa_rgba;
-
- if (targa_header.id_length != 0)
- fseek(fin, targa_header.id_length, SEEK_CUR); // skip TARGA image comment
-
- if (targa_header.image_type==2) { // Uncompressed, RGB images
- for(row=rows-1; row>=0; row--) {
- pixbuf = targa_rgba + row*columns*4;
- for(column=0; column<columns; column++) {
- unsigned char red,green,blue,alphabyte;
- switch (targa_header.pixel_size) {
- case 24:
-
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
- case 32:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- break;
- }
- }
- }
- }
- else if (targa_header.image_type==10) { // Runlength encoded RGB images
- unsigned char red,green,blue,alphabyte,packetHeader,packetSize,j;
- for(row=rows-1; row>=0; row--) {
- pixbuf = targa_rgba + row*columns*4;
- for(column=0; column<columns; ) {
- packetHeader=getc(fin);
- packetSize = 1 + (packetHeader & 0x7f);
- if (packetHeader & 0x80) { // run-length packet
- switch (targa_header.pixel_size) {
- case 24:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = 255;
- break;
- case 32:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = getc(fin);
- break;
- }
-
- for(j=0;j<packetSize;j++) {
- *pixbuf++=red;
- *pixbuf++=green;
- *pixbuf++=blue;
- *pixbuf++=alphabyte;
- column++;
- if (column==columns) { // run spans across rows
- column=0;
- if (row>0)
- row--;
- else
- goto breakOut;
- pixbuf = targa_rgba + row*columns*4;
- }
- }
- }
- else { // non run-length packet
- for(j=0;j<packetSize;j++) {
- switch (targa_header.pixel_size) {
- case 24:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = 255;
- break;
- case 32:
- blue = getc(fin);
- green = getc(fin);
- red = getc(fin);
- alphabyte = getc(fin);
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- break;
- }
- column++;
- if (column==columns) { // pixel packet run spans across rows
- column=0;
- if (row>0)
- row--;
- else
- goto breakOut;
- pixbuf = targa_rgba + row*columns*4;
- }
- }
- }
- }
- breakOut:;
- }
- }
-
- // vertically flipped
- if ( (targa_header.attributes & (1<<5)) ) {
- int flip;
- for (row = 0; row < .5f * rows; row++)
- {
- for (column = 0; column < columns; column++)
- {
- flip = *( (int*)targa_rgba + row * columns + column);
- *( (int*)targa_rgba + row * columns + column) = *( (int*)targa_rgba + ( ( rows - 1 ) - row ) * columns + column );
- *( (int*)targa_rgba + ( ( rows - 1 ) - row ) * columns + column ) = flip;
- }
- }
- }
-
- fclose(fin);
-}
projects / voretournament / voretournament.git / blobdiff