fteqw/engine/gl/gl_rmisc.c
Spoike 11e6214daf Add explicit skyroom fog.
Changed how cubemaps are held in memory, making all images basically just 3d textures.
Don't start up at all if no game data is found.


git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5570 fc73d0e0-1445-4013-8a0c-d673dee63da5
2019-10-18 08:37:38 +00:00

515 lines
12 KiB
C

/*
Copyright (C) 1996-1997 Id Software, Inc.
This program 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.
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// r_misc.c
#include "quakedef.h"
#ifdef GLQUAKE
#include "glquake.h"
#include "gl_draw.h"
/*
==================
R_InitTextures
==================
*
void GLR_InitTextures (void)
{
int x,y, m;
qbyte *dest;
// create a simple checkerboard texture for the default
r_notexture_mip = Hunk_AllocName (sizeof(texture_t) + 16*16+8*8+4*4+2*2, "notexture");
r_notexture_mip->width = r_notexture_mip->height = 16;
r_notexture_mip->offsets[0] = sizeof(texture_t);
r_notexture_mip->offsets[1] = r_notexture_mip->offsets[0] + 16*16;
r_notexture_mip->offsets[2] = r_notexture_mip->offsets[1] + 8*8;
r_notexture_mip->offsets[3] = r_notexture_mip->offsets[2] + 4*4;
for (m=0 ; m<4 ; m++)
{
dest = (qbyte *)r_notexture_mip + r_notexture_mip->offsets[m];
for (y=0 ; y< (16>>m) ; y++)
for (x=0 ; x< (16>>m) ; x++)
{
if ( (y< (8>>m) ) ^ (x< (8>>m) ) )
*dest++ = 0;
else
*dest++ = 0xff;
}
}
}*/
#ifdef RTLIGHTS
texid_t GenerateNormalisationCubeMap(void)
{
texid_t normalisationCubeMap;
unsigned char data[32*32*3];
//some useful variables
int size=32;
float offset=0.5f;
float halfSize=16.0f;
vec3_t tempVector;
unsigned char * bytePtr;
int i, j;
normalisationCubeMap = Image_CreateTexture("normalisationcubemap", NULL, IF_TEXTYPE_CUBE);
qglGenTextures(1, &normalisationCubeMap->num);
GL_MTBind(0, GL_TEXTURE_CUBE_MAP_ARB, normalisationCubeMap);
//positive x
bytePtr=data;
for(j=0; j<size; j++)
{
for(i=0; i<size; i++)
{
tempVector[0] = halfSize;
tempVector[1] = -(j+offset-halfSize);
tempVector[2] = -(i+offset-halfSize);
VectorNormalize(tempVector);
bytePtr[0]=(unsigned char)((tempVector[0]/2 + 0.5)*255);
bytePtr[1]=(unsigned char)((tempVector[1]/2 + 0.5)*255);
bytePtr[2]=(unsigned char)((tempVector[2]/2 + 0.5)*255);
bytePtr+=3;
}
}
qglTexImage2D( GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
0, GL_RGBA, 32, 32, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
//negative x
bytePtr=data;
for(j=0; j<size; j++)
{
for(i=0; i<size; i++)
{
tempVector[0] = (-halfSize);
tempVector[1] = (-(j+offset-halfSize));
tempVector[2] = ((i+offset-halfSize));
VectorNormalize(tempVector);
bytePtr[0]=(unsigned char)((tempVector[0]/2 + 0.5)*255);
bytePtr[1]=(unsigned char)((tempVector[1]/2 + 0.5)*255);
bytePtr[2]=(unsigned char)((tempVector[2]/2 + 0.5)*255);
bytePtr+=3;
}
}
qglTexImage2D( GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
0, GL_RGBA, 32, 32, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
//positive y
bytePtr=data;
for(j=0; j<size; j++)
{
for(i=0; i<size; i++)
{
tempVector[0] = (i+offset-halfSize);
tempVector[1] = (halfSize);
tempVector[2] = ((j+offset-halfSize));
VectorNormalize(tempVector);
bytePtr[0]=(unsigned char)((tempVector[0]/2 + 0.5)*255);
bytePtr[1]=(unsigned char)((tempVector[1]/2 + 0.5)*255);
bytePtr[2]=(unsigned char)((tempVector[2]/2 + 0.5)*255);
bytePtr+=3;
}
}
qglTexImage2D( GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
0, GL_RGBA, 32, 32, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
//negative y
bytePtr=data;
for(j=0; j<size; j++)
{
for(i=0; i<size; i++)
{
tempVector[0] = (i+offset-halfSize);
tempVector[1] = (-halfSize);
tempVector[2] = (-(j+offset-halfSize));
VectorNormalize(tempVector);
bytePtr[0]=(unsigned char)((tempVector[0]/2 + 0.5)*255);
bytePtr[1]=(unsigned char)((tempVector[1]/2 + 0.5)*255);
bytePtr[2]=(unsigned char)((tempVector[2]/2 + 0.5)*255);
bytePtr+=3;
}
}
qglTexImage2D( GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
0, GL_RGBA, 32, 32, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
//positive z
bytePtr=data;
for(j=0; j<size; j++)
{
for(i=0; i<size; i++)
{
tempVector[0] = (i+offset-halfSize);
tempVector[1] = (-(j+offset-halfSize));
tempVector[2] = (halfSize);
VectorNormalize(tempVector);
bytePtr[0]=(unsigned char)((tempVector[0]/2 + 0.5)*255);
bytePtr[1]=(unsigned char)((tempVector[1]/2 + 0.5)*255);
bytePtr[2]=(unsigned char)((tempVector[2]/2 + 0.5)*255);
bytePtr+=3;
}
}
qglTexImage2D( GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
0, GL_RGBA, 32, 32, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
//negative z
bytePtr=data;
for(j=0; j<size; j++)
{
for(i=0; i<size; i++)
{
tempVector[0] = (-(i+offset-halfSize));
tempVector[1] = (-(j+offset-halfSize));
tempVector[2] = (-halfSize);
VectorNormalize(tempVector);
bytePtr[0]=(unsigned char)((tempVector[0]/2 + 0.5)*255);
bytePtr[1]=(unsigned char)((tempVector[1]/2 + 0.5)*255);
bytePtr[2]=(unsigned char)((tempVector[2]/2 + 0.5)*255);
bytePtr+=3;
}
}
qglTexImage2D( GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB,
0, GL_RGBA, 32, 32, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
return normalisationCubeMap;
}
texid_t normalisationCubeMap;
#endif
#if 0
typedef struct
{
long offset; // Position of the entry in WAD
long dsize; // Size of the entry in WAD file
long size; // Size of the entry in memory
char type; // type of entry
char cmprs; // Compression. 0 if none.
short dummy; // Not used
char name[16]; // we use only first 8
} wad2entry_t;
typedef struct
{
char magic[4]; //should be WAD2
long num; //number of entries
long offset; //location of directory
} wad2_t;
void R_MakeTexWad_f(void)
{
//this function is written as little endian. nothing will fix that.
miptex_t dummymip = {"", 0, 0, {0, 0, 0, 0}};
wad2_t wad2 = {"WAD2",0,0};
wad2entry_t entry[2048];
int entries = 0, i;
vfsfile_t *f;
char base[128];
// qbyte b;
qboolean hasalpha;
int width, height;
qbyte *buf, *outmip;
qbyte *mip, *stack;
char *wadname = Cmd_Argv(1);
char *imagename = Cmd_Argv(2);
float scale = atof(Cmd_Argv(3));
if (!scale)
scale = 2;
if (!*wadname || !*imagename)
return;
f=FS_OpenVFS(wadname, "w+b", FS_GAMEONLY);
if (!f)
return;
mip = BZ_Malloc(1024*1024);
// initbuf = BZ_Malloc(1024*1024*4);
stack = BZ_Malloc(1024*1024*4+1024);
VFS_SEEK(f, 0);
VFS_READ(f, &wad2, sizeof(wad2_t));
VFS_SEEK(f, wad2.offset);
VFS_READ(f, entry, sizeof(entry[0]) * wad2.num);
//find the end of the data.
wad2.offset = sizeof(wad2_t);
for (entries = 0; entries < wad2.num; entries++)
if (wad2.offset < entry[entries].offset + entry[entries].dsize)
wad2.offset = entry[entries].offset + entry[entries].dsize;
VFS_SEEK(f, wad2.offset);
{
COM_StripExtension(imagename, base, sizeof(base));
base[15]=0;
for (i =0; i < entries; i++)
if (!stricmp(entry[i].name, base))
break;
if (i != entries)
Con_Printf("Replacing %s, you'll want to compact your wad at some point.\n", base); //this will leave a gap. we don't support compacting.
else
entries++;
entry[i].offset = VFS_TELL(f);
entry[i].dsize = entry[i].size = 0;
entry[i].type = TYP_MIPTEX;
entry[i].cmprs = 0;
entry[i].dummy = 0;
strcpy(entry[i].name, base);
strcpy(dummymip.name, base);
{
qbyte *data;
int h;
float x, xi;
float y, yi;
char *path[] ={
"%s",
"override/%s.tga",
"textures/%s.png",
"textures/%s.tga",
"%s.png",
"%s.tga",
"progs/%s"};
for (h = 0, buf=NULL; h < sizeof(path)/sizeof(char *); h++)
{
buf = COM_LoadStackFile(va(path[h], imagename), stack, 1024*1024*4+1024);
if (buf)
break;
}
width = 16;
height = 16;
if (buf)
data = Read32BitImageFile(buf, com_filesize, &width, &height, &hasalpha, imagename);
else
data = NULL;
if (!data)
data = Z_Malloc(width*height*4);
dummymip.width = (int)(width/scale) & ~0xf;
dummymip.height = (int)(height/scale) & ~0xf;
if (dummymip.width<=0)
dummymip.width=16;
if (dummymip.height<=0)
dummymip.height=16;
if (dummymip.width > 1024)
dummymip.width = 1024;
if (dummymip.height > 1024)
dummymip.height = 1024;
dummymip.offsets[0] = sizeof(dummymip);
dummymip.offsets[1] = dummymip.offsets[0]+dummymip.width*dummymip.height;
dummymip.offsets[2] = dummymip.offsets[1]+dummymip.width/2*dummymip.height/2;
dummymip.offsets[3] = dummymip.offsets[2]+dummymip.width/4*dummymip.height/4;
entry[entries].dsize = entry[entries].size = dummymip.offsets[3]+dummymip.width/8*dummymip.height/8;
xi = (float)width/dummymip.width;
yi = (float)height/dummymip.height;
VFS_WRITE(f, &dummymip, sizeof(dummymip));
outmip=mip;
for (outmip=mip, y = 0; y < height; y+=yi)
for (x = 0; x < width; x+=xi)
{
*outmip++ = GetPaletteIndex( data[(int)(x+y*width)*4+0],
data[(int)(x+y*width)*4+1],
data[(int)(x+y*width)*4+2]);
}
VFS_WRITE(f, mip, dummymip.width * dummymip.height);
for (outmip=mip, y = 0; y < height; y+=yi*2)
for (x = 0; x < width; x+=xi*2)
{
*outmip++ = GetPaletteIndex( data[(int)(x+y*width)*4+0],
data[(int)(x+y*width)*4+1],
data[(int)(x+y*width)*4+2]);
}
VFS_WRITE(f, mip, (dummymip.width/2) * (dummymip.height/2));
for (outmip=mip, y = 0; y < height; y+=yi*4)
for (x = 0; x < width; x+=xi*4)
{
*outmip++ = GetPaletteIndex( data[(int)(x+y*width)*4+0],
data[(int)(x+y*width)*4+1],
data[(int)(x+y*width)*4+2]);
}
VFS_WRITE(f, mip, (dummymip.width/4) * (dummymip.height/4));
for (outmip=mip, y = 0; y < height; y+=yi*8)
for (x = 0; x < width; x+=xi*8)
{
*outmip++ = GetPaletteIndex( data[(int)(x+y*width)*4+0],
data[(int)(x+y*width)*4+1],
data[(int)(x+y*width)*4+2]);
}
VFS_WRITE(f, mip, (dummymip.width/8) * (dummymip.height/8));
BZ_Free(data);
}
entry[i].dsize = VFS_TELL(f) - entry[i].offset;
Con_Printf("Added %s\n", base);
}
wad2.offset = VFS_TELL(f);
wad2.num = entries;
VFS_WRITE(f, entry, entries*sizeof(wad2entry_t));
VFS_SEEK(f, 0);
VFS_WRITE(f, &wad2, sizeof(wad2_t));
VFS_CLOSE(f);
BZ_Free(mip);
// BZ_Free(initbuf);
BZ_Free(stack);
Con_Printf("%s now has %i entries\n", wadname, entries);
}
#endif
void GLR_TimeRefresh_f (void);
void GLV_Gamma_Callback(struct cvar_s *var, char *oldvalue);
void GLR_DeInit (void)
{
Cmd_RemoveCommand ("timerefresh");
// Cmd_RemoveCommand ("makewad");
// Cvar_Unhook(&v_gamma);
// Cvar_Unhook(&v_contrast);
// Cvar_Unhook(&v_brightness);
Surf_DeInit();
GLDraw_DeInit();
}
void GLR_Init (void)
{
Cmd_AddCommand ("timerefresh", GLR_TimeRefresh_f);
// Cmd_AddCommand ("makewad", R_MakeTexWad_f);
}
/*
====================
R_TimeRefresh_f
For program optimization
====================
*/
void GLR_TimeRefresh_f (void)
{
int i;
float start, stop, time;
int finish;
int frames = 128;
finish = atoi(Cmd_Argv(1));
frames = atoi(Cmd_Argv(2));
if (frames < 1)
frames = 128;
if (!r_refdef.playerview)
r_refdef.playerview = &cl.playerview[0];
if (finish == 2)
{
qglFinish ();
start = Sys_DoubleTime ();
for (i=0 ; i<frames ; i++)
{
r_refdef.viewangles[1] = i/(float)frames*360.0;
R_RenderView ();
VID_SwapBuffers();
}
}
else
{
if (qglDrawBuffer)
qglDrawBuffer (GL_FRONT);
qglFinish ();
start = Sys_DoubleTime ();
for (i=0 ; i<frames ; i++)
{
r_refdef.viewangles[1] = i/(float)frames*360.0;
R_RenderView ();
if (finish)
qglFinish ();
}
}
qglFinish ();
stop = Sys_DoubleTime ();
time = stop-start;
Con_Printf ("%f seconds (%f fps)\n", time, frames/time);
if (R2D_Flush)
R2D_Flush();
if (qglDrawBuffer)
qglDrawBuffer (GL_BACK);
VID_SwapBuffers();
}
#endif