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gtkradiant/plugins/imagehl/lbmlib.cpp

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/*
Copyright (C) 1999-2007 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
// by Hydra - hydra@hydras-world.com
//
// This module is based on the image module, but just more stripped down.
// it still currently supports TGA file loading, even though this is not
// required for HalfLife support (unless MD2 files use TGA's)
//
// use the #defines in imagehl.h to enable/disable the various formats.
//
// HLW = Half-Life-WAD, I don't know if the actual in data in the WAD files
// has it's own name, so I'm just calling the individal textures .HLW files :)
//
// Thanks to the guys that made Wally for releasing an example WAD loader.
// without it this would not have been possible.
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include "imagehl.h"
#include "lbmlib.h"
#include <stdio.h>
#define Sys_Printf g_FuncTable.m_pfnSysPrintf
#define Sys_FPrintf g_FuncTable.m_pfnSysFPrintf
#ifdef USE_IDSP
/*
============================================================================
IDSP IMAGE (.spr files)
Some code copied straight from the Q1 source, also used the HalfLife SDK as
a reference.
============================================================================
*/
typedef enum {ST_SYNC = 0, ST_RAND } synctype_t;
typedef enum { SPR_SINGLE = 0, SPR_GROUP } spriteframetype_t;
typedef struct dspriteheader_s {
int ident;
int version;
} dspriteheader_t;
// Quake1
typedef struct {
int type;
float boundingradius;
int width;
int height;
int numframes;
float beamlength;
synctype_t synctype;
} dspritev1_t;
// Halflife
typedef struct {
int type;
int texFormat;
float boundingradius;
int width;
int height;
int numframes;
float beamlength;
synctype_t synctype;
} dspritev2_t;
typedef struct {
int origin[2];
int width;
int height;
} dspriteframe_t;
typedef struct {
short type;
} dspriteframetype_t;
/*
typedef struct {
byte rgb[256][3];
} dpalette_t;
*/
#define IDSPRITEHEADER ( ( 'P' << 24 ) + ( 'S' << 16 ) + ( 'D' << 8 ) + 'I' )
// little-endian "IDSP"
/*
=============
LoadIDSP
=============
*/
static void LoadIDSP( const char *name, byte ** pic, int *width, int *height ){
byte *buffer;
byte *buf_p;
unsigned int length;
int columns, rows, numPixels;
byte *pixbuf;
int row, column;
byte *bmpRGBA;
byte *palette;
unsigned char red, green, blue, alphabyte;
dspriteheader_t *header;
dspritev1_t *pinv1;
dspritev2_t *pinv2;
dspriteframetype_t *pframetype;
int version;
int numframes;
dspriteframe_t *spriteframe;
*pic = NULL;
//
// load the file
//
length = vfsLoadFile( (char *) name, (void **) &buffer, 0 );
if ( length == (unsigned int) -1 ) {
return;
}
header = (dspriteheader_t *)buffer;
if ( header->ident != IDSPRITEHEADER ) {
Sys_FPrintf( SYS_WRN, "WARNING: %s has wrong header\n" );
vfsFreeFile( buffer );
return;
}
version = header->version;
if ( version != 1 && version != 2 ) {
Sys_FPrintf( SYS_WRN, "WARNING: %s has wrong version number "
"(%i should be 1 or 2)\n", name, version );
vfsFreeFile( buffer );
return;
}
// initialise variables depending on the sprite version.
switch ( version )
{
case 1:
pinv1 = (dspritev1_t *)( header + 1 );
numframes = pinv1->numframes;
columns = pinv1->width;
rows = pinv1->height;
pframetype = (dspriteframetype_t *)( pinv1 + 1 );
break;
case 2:
pinv2 = (dspritev2_t *)( header + 1 );
numframes = pinv2->numframes;
columns = pinv2->width;
rows = pinv2->height;
pframetype = (dspriteframetype_t *)( pinv2 + 1 );
break;
}
if ( numframes > 1 ) {
Sys_FPrintf( SYS_WRN, "WARNING: %s has multiple frames, only the first frame will be used.\n", name );
}
// palette = buffer+mipdatasize+2;
// buf_p = buffer+lpMip->offsets[0];
numPixels = columns * rows;
if ( width ) {
*width = columns;
}
if ( height ) {
*height = rows;
}
bmpRGBA = reinterpret_cast < unsigned char *>( g_malloc( numPixels * 4 ) );
*pic = bmpRGBA;
#ifdef DEBUG
spriteframetype_t frametype = spriteframetype_t( LittleLong( pframetype->type ) );
if ( frametype == SPR_SINGLE ) {
Sys_Printf( "Single Frame\n" );
}
else if ( frametype == SPR_GROUP ) {
Sys_Printf( "Group of Frames\n" );
}
else
{
Sys_Printf( "Bleh!\n" ); // <-- we always get this, wtf!
}
#endif
palette = (byte *)( pframetype + 1 );
spriteframe = (dspriteframe_t *)( palette + ( 256 * 3 ) + 4 ); // what are those 4 extra bytes ? what's missing ?
buf_p = (byte *)( spriteframe + 1 );
int temp;
temp = buf_p - buffer;
for ( row = 0; row < rows; row++ )
{
pixbuf = bmpRGBA + row * columns * 4;
for ( column = 0; column < columns; column++ )
{
int palIndex;
palIndex = *buf_p++;
red = *( palette + ( palIndex * 3 ) );
green = *( palette + ( palIndex * 3 ) + 1 );
blue = *( palette + ( palIndex * 3 ) + 2 );
// HalfLife engine makes pixels that are BLUE transparent. (RGB = 0x0000FF)
// So show them that way in the editor.
if ( blue == 0xff && red == 0x00 && green == 0x00 ) {
alphabyte = 0xff; //FIXME: backwards? (so sprite models to render correctly)
blue = 0x00; // don't set the resulting pixel to blue
}
else
{
alphabyte = 0x00; //FIXME: backwards? (so sprite models to render correctly)
}
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
}
}
vfsFreeFile( buffer );
}
#endif
#ifdef USE_HLW
/*
============================================================================
HLW IMAGE
HalfLife WAD files contain files that look like this:
Mip section
First mip
Mip header
First mip (width * height)
Second mip (width * height / 4)
Third mip (width * height / 16)
Fourth mip (width * height / 64)
Palette size (WORD)
Palette (Palette size * 3)
Padding (WORD)
============================================================================
*/
#define GET_MIP_DATA_SIZE( WIDTH, HEIGHT ) ( sizeof( WAD3_MIP ) + ( WIDTH * HEIGHT ) + ( WIDTH * HEIGHT / 4 ) + ( WIDTH * HEIGHT / 16 ) + ( WIDTH * HEIGHT / 64 ) )
typedef struct
{
char name[16];
DWORD width, height;
DWORD offsets[4]; // four mip maps stored
} WAD3_MIP, *LPWAD3_MIP;
/*
=========================================================
HLW LOADING
Hydra: this code isn't bullet proof and probably won't
like corrupt WAD files, but it works for now.
TODO: make it more robust.
=========================================================
*/
/*
=============
LoadHLW
=============
*/
static void LoadHLW( const char *name, byte ** pic, int *width, int *height ){
byte *buffer;
byte *buf_p;
unsigned int length;
unsigned long mipdatasize;
int columns, rows, numPixels;
byte *pixbuf;
int row, column;
byte *bmpRGBA;
byte *palette;
LPWAD3_MIP lpMip;
unsigned char red, green, blue, alphabyte;
*pic = NULL;
//
// load the file
//
length = vfsLoadFile( (char *) name, (void **) &buffer, 0 );
if ( length == (unsigned int) -1 ) {
return;
}
lpMip = (LPWAD3_MIP)buffer;
mipdatasize = GET_MIP_DATA_SIZE( lpMip->width,lpMip->height );
palette = buffer + mipdatasize + 2;
buf_p = buffer + lpMip->offsets[0];
columns = lpMip->width;
rows = lpMip->height;
numPixels = columns * rows;
if ( width ) {
*width = columns;
}
if ( height ) {
*height = rows;
}
bmpRGBA = reinterpret_cast < unsigned char *>( g_malloc( numPixels * 4 ) );
*pic = bmpRGBA;
for ( row = 0; row < rows; row++ )
{
pixbuf = bmpRGBA + row * columns * 4;
for ( column = 0; column < columns; column++ )
{
int palIndex;
palIndex = *buf_p++;
red = *( palette + ( palIndex * 3 ) );
green = *( palette + ( palIndex * 3 ) + 1 );
blue = *( palette + ( palIndex * 3 ) + 2 );
// HalfLife engine makes pixels that are BLUE transparent.
// So show them that way in the editor.
if ( blue == 0xff && red == 0x00 && green == 0x00 ) {
alphabyte = 0x00;
blue = 0x00; // don't set the resulting pixel to blue
}
else
{
alphabyte = 0xff;
}
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
}
}
vfsFreeFile( buffer );
}
#endif
#ifdef USE_MIP
/*
============================================================================
MIP IMAGE
Quake WAD files contain miptex files that look like this:
Mip section
First mip
Mip header
First mip (width * height)
Second mip (width * height / 4)
Third mip (width * height / 16)
Fourth mip (width * height / 64)
============================================================================
*/
/*
=========================================================
MIP LOADING
LordHavoc: this code is based on the HLW code above.
=========================================================
*/
static const byte quakepalette[768] =
{
0x00,0x00,0x00, 0x0f,0x0f,0x0f, 0x1f,0x1f,0x1f, 0x2f,0x2f,0x2f,
0x3f,0x3f,0x3f, 0x4b,0x4b,0x4b, 0x5b,0x5b,0x5b, 0x6b,0x6b,0x6b,
0x7b,0x7b,0x7b, 0x8b,0x8b,0x8b, 0x9b,0x9b,0x9b, 0xab,0xab,0xab,
0xbb,0xbb,0xbb, 0xcb,0xcb,0xcb, 0xdb,0xdb,0xdb, 0xeb,0xeb,0xeb,
0x0f,0x0b,0x07, 0x17,0x0f,0x0b, 0x1f,0x17,0x0b, 0x27,0x1b,0x0f,
0x2f,0x23,0x13, 0x37,0x2b,0x17, 0x3f,0x2f,0x17, 0x4b,0x37,0x1b,
0x53,0x3b,0x1b, 0x5b,0x43,0x1f, 0x63,0x4b,0x1f, 0x6b,0x53,0x1f,
0x73,0x57,0x1f, 0x7b,0x5f,0x23, 0x83,0x67,0x23, 0x8f,0x6f,0x23,
0x0b,0x0b,0x0f, 0x13,0x13,0x1b, 0x1b,0x1b,0x27, 0x27,0x27,0x33,
0x2f,0x2f,0x3f, 0x37,0x37,0x4b, 0x3f,0x3f,0x57, 0x47,0x47,0x67,
0x4f,0x4f,0x73, 0x5b,0x5b,0x7f, 0x63,0x63,0x8b, 0x6b,0x6b,0x97,
0x73,0x73,0xa3, 0x7b,0x7b,0xaf, 0x83,0x83,0xbb, 0x8b,0x8b,0xcb,
0x00,0x00,0x00, 0x07,0x07,0x00, 0x0b,0x0b,0x00, 0x13,0x13,0x00,
0x1b,0x1b,0x00, 0x23,0x23,0x00, 0x2b,0x2b,0x07, 0x2f,0x2f,0x07,
0x37,0x37,0x07, 0x3f,0x3f,0x07, 0x47,0x47,0x07, 0x4b,0x4b,0x0b,
0x53,0x53,0x0b, 0x5b,0x5b,0x0b, 0x63,0x63,0x0b, 0x6b,0x6b,0x0f,
0x07,0x00,0x00, 0x0f,0x00,0x00, 0x17,0x00,0x00, 0x1f,0x00,0x00,
0x27,0x00,0x00, 0x2f,0x00,0x00, 0x37,0x00,0x00, 0x3f,0x00,0x00,
0x47,0x00,0x00, 0x4f,0x00,0x00, 0x57,0x00,0x00, 0x5f,0x00,0x00,
0x67,0x00,0x00, 0x6f,0x00,0x00, 0x77,0x00,0x00, 0x7f,0x00,0x00,
0x13,0x13,0x00, 0x1b,0x1b,0x00, 0x23,0x23,0x00, 0x2f,0x2b,0x00,
0x37,0x2f,0x00, 0x43,0x37,0x00, 0x4b,0x3b,0x07, 0x57,0x43,0x07,
0x5f,0x47,0x07, 0x6b,0x4b,0x0b, 0x77,0x53,0x0f, 0x83,0x57,0x13,
0x8b,0x5b,0x13, 0x97,0x5f,0x1b, 0xa3,0x63,0x1f, 0xaf,0x67,0x23,
0x23,0x13,0x07, 0x2f,0x17,0x0b, 0x3b,0x1f,0x0f, 0x4b,0x23,0x13,
0x57,0x2b,0x17, 0x63,0x2f,0x1f, 0x73,0x37,0x23, 0x7f,0x3b,0x2b,
0x8f,0x43,0x33, 0x9f,0x4f,0x33, 0xaf,0x63,0x2f, 0xbf,0x77,0x2f,
0xcf,0x8f,0x2b, 0xdf,0xab,0x27, 0xef,0xcb,0x1f, 0xff,0xf3,0x1b,
0x0b,0x07,0x00, 0x1b,0x13,0x00, 0x2b,0x23,0x0f, 0x37,0x2b,0x13,
0x47,0x33,0x1b, 0x53,0x37,0x23, 0x63,0x3f,0x2b, 0x6f,0x47,0x33,
0x7f,0x53,0x3f, 0x8b,0x5f,0x47, 0x9b,0x6b,0x53, 0xa7,0x7b,0x5f,
0xb7,0x87,0x6b, 0xc3,0x93,0x7b, 0xd3,0xa3,0x8b, 0xe3,0xb3,0x97,
0xab,0x8b,0xa3, 0x9f,0x7f,0x97, 0x93,0x73,0x87, 0x8b,0x67,0x7b,
0x7f,0x5b,0x6f, 0x77,0x53,0x63, 0x6b,0x4b,0x57, 0x5f,0x3f,0x4b,
0x57,0x37,0x43, 0x4b,0x2f,0x37, 0x43,0x27,0x2f, 0x37,0x1f,0x23,
0x2b,0x17,0x1b, 0x23,0x13,0x13, 0x17,0x0b,0x0b, 0x0f,0x07,0x07,
0xbb,0x73,0x9f, 0xaf,0x6b,0x8f, 0xa3,0x5f,0x83, 0x97,0x57,0x77,
0x8b,0x4f,0x6b, 0x7f,0x4b,0x5f, 0x73,0x43,0x53, 0x6b,0x3b,0x4b,
0x5f,0x33,0x3f, 0x53,0x2b,0x37, 0x47,0x23,0x2b, 0x3b,0x1f,0x23,
0x2f,0x17,0x1b, 0x23,0x13,0x13, 0x17,0x0b,0x0b, 0x0f,0x07,0x07,
0xdb,0xc3,0xbb, 0xcb,0xb3,0xa7, 0xbf,0xa3,0x9b, 0xaf,0x97,0x8b,
0xa3,0x87,0x7b, 0x97,0x7b,0x6f, 0x87,0x6f,0x5f, 0x7b,0x63,0x53,
0x6b,0x57,0x47, 0x5f,0x4b,0x3b, 0x53,0x3f,0x33, 0x43,0x33,0x27,
0x37,0x2b,0x1f, 0x27,0x1f,0x17, 0x1b,0x13,0x0f, 0x0f,0x0b,0x07,
0x6f,0x83,0x7b, 0x67,0x7b,0x6f, 0x5f,0x73,0x67, 0x57,0x6b,0x5f,
0x4f,0x63,0x57, 0x47,0x5b,0x4f, 0x3f,0x53,0x47, 0x37,0x4b,0x3f,
0x2f,0x43,0x37, 0x2b,0x3b,0x2f, 0x23,0x33,0x27, 0x1f,0x2b,0x1f,
0x17,0x23,0x17, 0x0f,0x1b,0x13, 0x0b,0x13,0x0b, 0x07,0x0b,0x07,
0xff,0xf3,0x1b, 0xef,0xdf,0x17, 0xdb,0xcb,0x13, 0xcb,0xb7,0x0f,
0xbb,0xa7,0x0f, 0xab,0x97,0x0b, 0x9b,0x83,0x07, 0x8b,0x73,0x07,
0x7b,0x63,0x07, 0x6b,0x53,0x00, 0x5b,0x47,0x00, 0x4b,0x37,0x00,
0x3b,0x2b,0x00, 0x2b,0x1f,0x00, 0x1b,0x0f,0x00, 0x0b,0x07,0x00,
0x00,0x00,0xff, 0x0b,0x0b,0xef, 0x13,0x13,0xdf, 0x1b,0x1b,0xcf,
0x23,0x23,0xbf, 0x2b,0x2b,0xaf, 0x2f,0x2f,0x9f, 0x2f,0x2f,0x8f,
0x2f,0x2f,0x7f, 0x2f,0x2f,0x6f, 0x2f,0x2f,0x5f, 0x2b,0x2b,0x4f,
0x23,0x23,0x3f, 0x1b,0x1b,0x2f, 0x13,0x13,0x1f, 0x0b,0x0b,0x0f,
0x2b,0x00,0x00, 0x3b,0x00,0x00, 0x4b,0x07,0x00, 0x5f,0x07,0x00,
0x6f,0x0f,0x00, 0x7f,0x17,0x07, 0x93,0x1f,0x07, 0xa3,0x27,0x0b,
0xb7,0x33,0x0f, 0xc3,0x4b,0x1b, 0xcf,0x63,0x2b, 0xdb,0x7f,0x3b,
0xe3,0x97,0x4f, 0xe7,0xab,0x5f, 0xef,0xbf,0x77, 0xf7,0xd3,0x8b,
0xa7,0x7b,0x3b, 0xb7,0x9b,0x37, 0xc7,0xc3,0x37, 0xe7,0xe3,0x57,
0x7f,0xbf,0xff, 0xab,0xe7,0xff, 0xd7,0xff,0xff, 0x67,0x00,0x00,
0x8b,0x00,0x00, 0xb3,0x00,0x00, 0xd7,0x00,0x00, 0xff,0x00,0x00,
0xff,0xf3,0x93, 0xff,0xf7,0xc7, 0xff,0xff,0xff, 0x9f,0x5b,0x53
};
/*
=============
LoadMIP
=============
*/
static void LoadMIP( const char *name, byte ** pic, int *width, int *height ){
byte *buffer;
byte *buf_p;
unsigned int length, palettelength;
unsigned long mipdatasize;
int columns, rows, numPixels;
byte *pixbuf;
int i;
byte *bmpRGBA;
byte *loadedpalette;
const byte *palette;
LPWAD3_MIP lpMip;
*pic = NULL;
loadedpalette = NULL;
//
// load the file
//
length = vfsLoadFile( (char *) name, (void **) &buffer, 0 );
if ( length == (unsigned int) -1 ) {
return;
}
lpMip = (LPWAD3_MIP)buffer;
mipdatasize = GET_MIP_DATA_SIZE( lpMip->width,lpMip->height );
palettelength = vfsLoadFile( "textures/palette.lmp", (void **) &loadedpalette, 0 );
if ( palettelength == 768 ) {
palette = loadedpalette;
}
else
{
loadedpalette = NULL;
palette = quakepalette;
}
buf_p = buffer + lpMip->offsets[0];
columns = lpMip->width;
rows = lpMip->height;
numPixels = columns * rows;
if ( width ) {
*width = columns;
}
if ( height ) {
*height = rows;
}
//Sys_Printf("lpMip->width = %i, lpMip->height = %i, lpMip->offsets[0] = %i, lpMip->offsets[1] = %i, lpMip->offsets[2] = %i, lpMip->offsets[3] = %i, numPixels = %i\n", lpMip->width, lpMip->height, lpMip->offsets[0], lpMip->offsets[1], lpMip->offsets[2], lpMip->offsets[3], numPixels);
//for (i = 0; i < sizeof(*lpMip); i++)
// Sys_Printf("%02x", (int) ((unsigned char *)lpMip)[i]);
bmpRGBA = reinterpret_cast < unsigned char *>( g_malloc( numPixels * 4 ) );
*pic = bmpRGBA;
pixbuf = bmpRGBA;
for ( i = 0; i < numPixels; i++ )
{
int palIndex = *buf_p++;
*pixbuf++ = palette[palIndex * 3];
*pixbuf++ = palette[palIndex * 3 + 1];
*pixbuf++ = palette[palIndex * 3 + 2];
*pixbuf++ = 0xff;
}
vfsFreeFile( buffer );
if ( loadedpalette != NULL ) {
vfsFreeFile( loadedpalette );
}
}
#endif
/*
=================
LoadImage
Loads any of the supported image types into a cannonical
32 bit format.
=================
*/
void LoadImage( const char *name, byte ** pic, int *width, int *height ){
int len;
*pic = NULL;
*width = 0;
*height = 0;
len = strlen( name );
if ( len < 5 ) {
return;
}
#ifdef USE_HLW
if ( *pic == NULL && !g_ascii_strcasecmp( name + len - 4, ".hlw" ) ) {
LoadHLW( name, pic, width, height );
}
#endif
#ifdef USE_MIP
if ( *pic == NULL && !g_ascii_strcasecmp( name + len - 4, ".mip" ) ) {
LoadMIP( name, pic, width, height );
}
#endif
#ifdef USE_IDSP
if ( *pic == NULL && !g_ascii_strcasecmp( name + len - 4, ".spr" ) ) {
LoadIDSP( name, pic, width, height );
}
#endif
}
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