jkxr/Projects/Android/jni/OpenJK/code/rd-common/tr_image_load.cpp
Simon 4597b03873 Initial Commit
Opens in Android Studio but haven't even tried to build it yet (it won't.. I know that much!)
2022-09-18 16:37:21 +01:00

142 lines
3.7 KiB
C++

/*
===========================================================================
Copyright (C) 1999 - 2005, Id Software, Inc.
Copyright (C) 2000 - 2013, Raven Software, Inc.
Copyright (C) 2001 - 2013, Activision, Inc.
Copyright (C) 2005 - 2015, ioquake3 contributors
Copyright (C) 2013 - 2015, OpenJK contributors
This file is part of the OpenJK source code.
OpenJK is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
===========================================================================
*/
#include "../server/exe_headers.h"
#include "../rd-common/tr_common.h"
const int MAX_IMAGE_LOADERS = 10;
struct ImageLoaderMap
{
const char *extension;
ImageLoaderFn loader;
} imageLoaders[MAX_IMAGE_LOADERS];
int numImageLoaders;
/*
=================
Finds the image loader associated with the given extension.
=================
*/
const ImageLoaderMap *FindImageLoader ( const char *extension )
{
for ( int i = 0; i < numImageLoaders; i++ )
{
if ( Q_stricmp (extension, imageLoaders[i].extension) == 0 )
{
return &imageLoaders[i];
}
}
return NULL;
}
/*
=================
Adds a new image loader to load the specified image file extension.
The 'extension' string should not begin with a period (full stop).
=================
*/
qboolean R_ImageLoader_Add ( const char *extension, ImageLoaderFn imageLoader )
{
if ( numImageLoaders >= MAX_IMAGE_LOADERS )
{
ri.Printf (PRINT_DEVELOPER, "R_AddImageLoader: Cannot add any more image loaders (maximum %d).\n", MAX_IMAGE_LOADERS);
return qfalse;
}
if ( FindImageLoader (extension) != NULL )
{
ri.Printf (PRINT_DEVELOPER, "R_AddImageLoader: Image loader already exists for extension \"%s\".\n", extension);
return qfalse;
}
ImageLoaderMap *newImageLoader = &imageLoaders[numImageLoaders];
newImageLoader->extension = extension;
newImageLoader->loader = imageLoader;
numImageLoaders++;
return qtrue;
}
/*
=================
Initializes the image loader, and adds the built-in
image loaders
=================
*/
void R_ImageLoader_Init()
{
Com_Memset (imageLoaders, 0, sizeof (imageLoaders));
numImageLoaders = 0;
R_ImageLoader_Add ("jpg", LoadJPG);
R_ImageLoader_Add ("png", LoadPNG);
R_ImageLoader_Add ("tga", LoadTGA);
}
/*
=================
Loads any of the supported image types into a cannonical
32 bit format.
=================
*/
void R_LoadImage( const char *shortname, byte **pic, int *width, int *height ) {
*pic = NULL;
*width = 0;
*height = 0;
// Try loading the image with the original extension (if possible).
const char *extension = COM_GetExtension (shortname);
const ImageLoaderMap *imageLoader = FindImageLoader (extension);
if ( imageLoader != NULL )
{
imageLoader->loader (shortname, pic, width, height);
if ( *pic )
{
return;
}
}
// Loop through all the image loaders trying to load this image.
char extensionlessName[MAX_QPATH];
COM_StripExtension(shortname, extensionlessName, sizeof( extensionlessName ));
for ( int i = 0; i < numImageLoaders; i++ )
{
const ImageLoaderMap *tryLoader = &imageLoaders[i];
if ( tryLoader == imageLoader )
{
// Already tried this one.
continue;
}
const char *name = va ("%s.%s", extensionlessName, tryLoader->extension);
tryLoader->loader (name, pic, width, height);
if ( *pic )
{
return;
}
}
}