mirror of
https://github.com/blendogames/quadrilateralcowboy.git
synced 2024-11-10 06:41:36 +00:00
99 lines
3.2 KiB
C++
99 lines
3.2 KiB
C++
/*
|
|
===========================================================================
|
|
|
|
Doom 3 GPL Source Code
|
|
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
|
|
|
|
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
|
|
|
|
Doom 3 Source Code 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Doom 3 Source Code 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
|
|
|
|
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
class idTextureTile {
|
|
public:
|
|
int x, y;
|
|
};
|
|
|
|
static const int TILE_PER_LEVEL = 4;
|
|
static const int MAX_MEGA_CHANNELS = 3; // normal, diffuse, specular
|
|
static const int MAX_LEVELS = 12;
|
|
static const int MAX_LEVEL_WIDTH = 512;
|
|
static const int TILE_SIZE = MAX_LEVEL_WIDTH / TILE_PER_LEVEL;
|
|
|
|
class idMegaTexture;
|
|
|
|
class idTextureLevel {
|
|
public:
|
|
idMegaTexture *mega;
|
|
|
|
int tileOffset;
|
|
int tilesWide;
|
|
int tilesHigh;
|
|
|
|
idImage *image;
|
|
idTextureTile tileMap[TILE_PER_LEVEL][TILE_PER_LEVEL];
|
|
|
|
float parms[4];
|
|
|
|
void UpdateForCenter( float center[2] );
|
|
void UpdateTile( int localX, int localY, int globalX, int globalY );
|
|
void Invalidate();
|
|
};
|
|
|
|
typedef struct {
|
|
int tileSize;
|
|
int tilesWide;
|
|
int tilesHigh;
|
|
} megaTextureHeader_t;
|
|
|
|
|
|
class idMegaTexture {
|
|
public:
|
|
bool InitFromMegaFile( const char *fileBase );
|
|
void SetMappingForSurface( const srfTriangles_t *tri ); // analyzes xyz and st to create a mapping
|
|
void BindForViewOrigin( const idVec3 origin ); // binds images and sets program parameters
|
|
void Unbind(); // removes texture bindings
|
|
|
|
static void MakeMegaTexture_f( const idCmdArgs &args );
|
|
private:
|
|
friend class idTextureLevel;
|
|
void SetViewOrigin( const idVec3 origin );
|
|
static void GenerateMegaMipMaps( megaTextureHeader_t *header, idFile *file );
|
|
static void GenerateMegaPreview( const char *fileName );
|
|
|
|
idFile *fileHandle;
|
|
|
|
const srfTriangles_t *currentTriMapping;
|
|
|
|
idVec3 currentViewOrigin;
|
|
|
|
float localViewToTextureCenter[2][4];
|
|
|
|
int numLevels;
|
|
idTextureLevel levels[MAX_LEVELS]; // 0 is the highest resolution
|
|
megaTextureHeader_t header;
|
|
|
|
static idCVar r_megaTextureLevel;
|
|
static idCVar r_showMegaTexture;
|
|
static idCVar r_showMegaTextureLabels;
|
|
static idCVar r_skipMegaTexture;
|
|
static idCVar r_terrainScale;
|
|
};
|
|
|