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gl_draw.c
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gl_draw.c
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/*
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.
*/
// draw.c -- this is the only file outside the refresh that touches the
// vid buffer
#include "quakedef.h"
#define GL_COLOR_INDEX8_EXT 0x80E5
extern unsigned char d_15to8table[65536];
//qmb :detail texture
extern int detailtexture;
extern int detailtexture2;
extern int quadtexture;
byte *jpeg_rgba;
char *shaderScript = NULL;
cvar_t gl_nobind = {"gl_nobind", "0"};
cvar_t gl_max_size = {"gl_max_size", "4096"};
cvar_t gl_quick_texture_reload = {"gl_quick_texture_reload", "1", true};
cvar_t con_clock = {"con_clock", "1", true};
byte *draw_chars; // 8*8 graphic characters
qpic_t *draw_disc;
qpic_t *draw_backtile;
int translate_texture;
int char_texture;
//texture script stuff
int texturescript = true;
typedef struct
{
int texnum;
float sl, tl, sh, th;
} glpic_t;
byte conback_buffer[sizeof(qpic_t) + sizeof(glpic_t)];
qpic_t *conback = (qpic_t *)&conback_buffer;
int gl_lightmap_format = GL_RGBA;//GL_COMPRESSED_RGBA_ARB;//4;
int gl_solid_format = GL_RGB;//GL_COMPRESSED_RGB_ARB;//3;
int gl_alpha_format = GL_RGBA;//GL_COMPRESSED_RGBA_ARB;//4;
int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
int gl_filter_max = GL_LINEAR;
typedef struct
{
int texnum;
char identifier[64];
int width, height;
qboolean mipmap;
// Tomaz || TGA Begin
int bytesperpixel;
int lhcsum;
// Tomaz || TGA End
} gltexture_t;
#define MAX_GLTEXTURES 4096 // Entar : was 1024 - edited
gltexture_t gltextures[MAX_GLTEXTURES];
int numgltextures;
int GL_LoadTexImage (char* filename, qboolean complain, qboolean mipmap);
// Tomaz || TGA Begin
int image_width;
int image_height;
// Tomaz end
extern int multitex_go;
void GL_Bind (int texnum)
{
if (gl_nobind.value)
texnum = char_texture;
glBindTexture(GL_TEXTURE_2D, texnum);
}
//************************Texture script stuff********************************
/**
* Generate a default script file (mostly as example)
* If you don't want any texture filtering,
* just replace the generated one with an empty file
**/
void createDefaultShaderScript (void)
{
vfsfile_t *fout;
char buf[256];
char *temp;
// sprintf (buf,"%s",SCRIPTFILENAME); //
strcpy (buf, SCRIPTFILENAME);
fout = FS_OpenVFS(buf, "wb", FS_GAME);
if (fout != NULL)
{
// change these textures patterns to fit your preference
temp = va("%s=metal*;\n",SK_SHINYMETAL);
VFS_WRITE(fout, temp, strlen(temp));
// fflush (fout);
// fclose(fout);
VFS_CLOSE(fout);
}
}
/**
* Try to load shader script
**/
void loadShaderScript(char *filename)
{
vfsfile_t *fin;
int len;
fin = FS_OpenVFS(filename, "rb", FS_GAME);
if (fin == NULL)
{
createDefaultShaderScript();
fin = FS_OpenVFS(filename, "rb", FS_GAME);
if (fin == NULL)
{
Con_Printf ("loadShaderScript: failed to open \"%s\"\n", filename);
return;
}
}
/* fseek (fin, 0, SEEK_SET);
fseek (fin, 0, SEEK_END);
len = ftell (fin);
fseek (fin, 0, SEEK_SET);*/
len = VFS_GETLEN(fin);
// unlikely, but...
if (shaderScript)
{
free (shaderScript);
}
shaderScript = malloc (len);
// fread (shaderScript, len, 1, fin);
// fclose (fin);
VFS_READ (fin, shaderScript, len);
VFS_CLOSE (fin);
}
/**
* Checks if a value is binded
* to a key
**/
qboolean checkValue (char *key, char *value)
{
qboolean result = false;
char buf[64];
char *pKey, *pValue,*pBuf;
if (shaderScript != NULL)
{
if ((pKey = strstr(shaderScript, key)) != NULL)
{
pValue = pKey + strlen(key) + 1;
memset (buf, '\0', 64);
pBuf = buf;
while ((*pValue != ';') && (*pValue != '\0'))
{
if ((*pValue == ',') || (*pValue == '*'))
{
if (pBuf != buf)
{
if (strstr (value, buf) != NULL)
{
result = true;
break;
}
memset (buf, '\0', 64);
pBuf = buf;
}
}
else
{
// check for buffer overflow
if (strlen(pBuf) < 63)
{
pBuf[0] = pValue[0];
pBuf++;
}
}
pValue++;
}
}
}
return (result);
}
//************************End Texture Script********************************
//=============================================================================
/* Support Routines */
typedef struct cachepic_s
{
char name[MAX_QPATH];
qpic_t pic;
byte padding[32]; // for appended glpic
} cachepic_t;
#define MAX_CACHED_PICS 128
cachepic_t menu_cachepics[MAX_CACHED_PICS];
int menu_numcachepics;
byte menuplyr_pixels[4096];
int pic_texels;
int pic_count;
qpic_t *Draw_PicFromWad (char *name)
{
qpic_t *p;
glpic_t *gl;
int texnum;
char texname[128];
p = W_GetLumpName (name);
gl = (glpic_t *)p->data;
sprintf(texname,"textures/wad/%s", name);
if (texnum = GL_LoadTexImage(&texname[0], false, false)){
p->height = image_height;
p->width = image_width;
gl->texnum = texnum;
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}
sprintf(texname,"gfx/%s", name);
if (texnum = GL_LoadTexImage(&texname[0], false, false)){
p->height = image_height;
p->width = image_width;
gl->texnum = texnum;
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}
gl->texnum = GL_LoadTexture ("", p->width, p->height, p->data, false, true, 1);
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}
qpic_t *Draw_PicFromWadXY (char *name, int height, int width)
{
qpic_t *p;
glpic_t *gl;
int texnum;
char texname[128];
p = W_GetLumpName (name);
gl = (glpic_t *)p->data;
sprintf(texname,"textures/wad/%s", name);
if (texnum = GL_LoadTexImage(&texname[0], false, false)){
p->height = height;
p->width = width;
gl->texnum = texnum;
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}
sprintf(texname,"gfx/%s", name);
if (texnum = GL_LoadTexImage(&texname[0], false, false)){
p->height = height;
p->width = width;
gl->texnum = texnum;
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}
gl->texnum = GL_LoadTexture ("", p->width, p->height, p->data, false, true, 1);
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}
/*
qpic_t *Draw_PicFromWad (char *name)
{
qpic_t *p;
glpic_t *gl;
p = W_GetLumpName (name);
gl = (glpic_t *)p->data;
gl->texnum = GL_LoadTexture ("", p->width, p->height, p->data, false, true, 1);
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return p;
}*/
qpic_t *Draw_TryCachePic (char *path)
{
cachepic_t *pic;
int i;
qpic_t *dat;
glpic_t *gl;
for (pic=menu_cachepics, i=0 ; i<menu_numcachepics ; pic++, i++)
if (!strcmp (path, pic->name))
return &pic->pic;
if (menu_numcachepics == MAX_CACHED_PICS)
Sys_Error ("menu_numcachepics == MAX_CACHED_PICS");
menu_numcachepics++;
strcpy (pic->name, path);
//
// load the pic from disk
//
dat = (qpic_t *)COM_LoadTempFile (path);
if (!dat)
return NULL;
SwapPic (dat);
// HACK HACK HACK --- we need to keep the bytes for
// the translatable player picture just for the menu
// configuration dialog
if (!strcmp (path, "gfx/menuplyr.lmp"))
memcpy (menuplyr_pixels, dat->data, dat->width*dat->height);
pic->pic.width = dat->width;
pic->pic.height = dat->height;
gl = (glpic_t *)pic->pic.data;
gl->texnum = GL_LoadTexture ("", dat->width, dat->height, dat->data, false, true, 1);
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
return &pic->pic;
}
/*
================
Draw_CachePic
================
*/
qpic_t *Draw_CachePic (char *path)
{
qpic_t *dat;
dat = Draw_TryCachePic (path);
if (!dat)
Sys_Error ("Draw_CachePic: failed to load %s", path);
return dat;
}
typedef struct
{
char *name;
int minimize, maximize;
} glmode_t;
glmode_t modes[] = {
{"GL_NEAREST", GL_NEAREST, GL_NEAREST},
{"GL_LINEAR", GL_LINEAR, GL_LINEAR},
{"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
{"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
{"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
{"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
};
/*
===============
Draw_TextureMode_f
===============
*/
void Draw_TextureMode_f (void)
{
int i;
gltexture_t *glt;
extern void Host_InitVideo();
// if the video isn't initialized already, it needs to be
Host_InitVideo();
if (Cmd_Argc() == 1)
{
for (i=0 ; i< 6 ; i++)
if (gl_filter_min == modes[i].minimize)
{
Con_Printf ("%s\n", modes[i].name);
return;
}
Con_Printf ("current filter is unknown???\n");
return;
}
for (i=0 ; i< 6 ; i++)
{
if (!Q_strcasecmp (modes[i].name, Cmd_Argv(1) ) )
break;
}
if (i == 6)
{
Con_Printf ("bad filter name\n");
return;
}
gl_filter_min = modes[i].minimize;
gl_filter_max = modes[i].maximize;
// change all the existing mipmap texture objects
for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
{
if (glt->mipmap)
{
glBindTexture(GL_TEXTURE_2D,glt->texnum);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
}
}
}
/*
===============
Draw_Init
===============
*/
void Draw_Init (void)
{
extern void fractalnoisequick(qbyte *noise, int size, int startgrid);
int i;
qpic_t *cb;
glpic_t *gl;
int start;
byte *ncdata;
byte detailtex[256][256];
// 3dfx can only handle 256 wide textures
if (!Q_strncasecmp ((char *)gl_renderer, "3dfx",4) || strstr((char *)gl_renderer, "Glide")){
Cvar_Set ("gl_max_size", "256");
Con_Printf("Setting max texture size to 256x256 since 3dfx cards can't handle bigger ones");
}
texture_extension_number = 1;
// load the console background and the charset
// by hand, because we need to write the version
// string into the background before turning
// it into a texture
//TGA: begin
char_texture = GL_LoadTexImage ("gfx/charset", false, true);
if (char_texture == 0)// did not find a matching TGA...
{
draw_chars = W_GetLumpName ("conchars");
for (i=0 ; i<256*64 ; i++)
if (draw_chars[i] == 0)
draw_chars[i] = 255; // proper transparent color
// now turn them into textures
char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true, 1);
}
//TGA: end
gl = (glpic_t *)conback->data;
//TGA: begin
gl->texnum = GL_LoadTexImage ("gfx/conback", false, true);
if (gl->texnum == 0)// did not find a matching TGA...
{
start = Hunk_LowMark();
cb = (qpic_t *)COM_LoadTempFile ("gfx/conback.lmp");
if (!cb)
Sys_Error ("Couldn't load gfx/conback.lmp");
SwapPic (cb);
conback->width = cb->width;
conback->height = cb->height;
ncdata = cb->data;
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl->texnum = GL_LoadTexture ("gfx/conback", conback->width, conback->height, ncdata, false, false, 1);
// free loaded console
Hunk_FreeToLowMark(start);
}
//TGA: end
gl->sl = 0;
gl->sh = 1;
gl->tl = 0;
gl->th = 1;
conback->width = vid.width;
conback->height = vid.height;
// save a texture slot for translated picture
translate_texture = texture_extension_number++;
//
// get the other pics we need
//
draw_disc = Draw_PicFromWadXY ("disc",48,48);
draw_backtile = Draw_PicFromWad ("backtile");
//qmb :detail texture
detailtexture = GL_LoadTexImage("textures/detail", false, true);
if (!detailtexture)
{
/* for (x=0 ; x<32 ; x++)
{
for (y=0 ; y<32 ; y++)
{
data[x][y][0] = 255;
data[x][y][1] = 255;
data[x][y][2] = 255;
data[x][y][3] = detailtexture[x][y];
}
}*/
fractalnoisequick(&detailtex[0][0], 256, 256 >> 4);
detailtexture = GL_LoadTexture ("detailtex", 32, 32, &detailtex[0][0], true, true, 4);
}
detailtexture2 = GL_LoadTexImage("textures/detail2", false, true);
if (!detailtexture2)
{
/* for (x=0 ; x<32 ; x++)
{
for (y=0 ; y<32 ; y++)
{
data[x][y][0] = 255;
data[x][y][1] = 255;
data[x][y][2] = 255;
data[x][y][3] = detailtexture[x][y];
}
}*/
fractalnoisequick(&detailtex[0][0], 256, 256 >> 8);
detailtexture2 = GL_LoadTexture ("detailtex", 32, 32, &detailtex[0][0], true, true, 4);
}
quadtexture = GL_LoadTexImage("textures/quad", false, true);
}
void Draw_Init_Register(void)
{
Cvar_RegisterVariable (&gl_max_size);
Cvar_RegisterVariable (&gl_nobind);
Cvar_RegisterVariable (&gl_quick_texture_reload);
Cvar_RegisterVariable (&con_clock);
Cmd_AddCommand ("gl_texturemode", &Draw_TextureMode_f);
}
/*
===============
Draw_Shutdown
===============
*/
extern unsigned int dst_texture;
extern int lightmap_textures;
void Draw_Shutdown(void)
{
menu_numcachepics = 0;
numgltextures = 0;
char_texture = 0;
translate_texture = 0;
detailtexture = 0;
detailtexture2 = 0;
quadtexture = 0;
lightmap_textures = 0;
dst_texture = 0;
}
/*
================
Draw_Character
Draws one 8*8 graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void Draw_Character (int x, int y, int num)
{
int row, col;
float frow, fcol, size;
if (num == 32)
return; // space
num &= 255;
if (y <= -8)
return; // totally off screen
row = num>>4;
col = num&15;
//qmb :larger text??
frow = row*0.0625f;
fcol = col*0.0625f;
size = 0.0625f;
glBindTexture(GL_TEXTURE_2D,char_texture);
glBegin (GL_QUADS);
glTexCoord2f (fcol, frow);
glVertex2f (x, y);
glTexCoord2f (fcol + size, frow);
glVertex2f (x+8, y);
glTexCoord2f (fcol + size, frow + size);
glVertex2f (x+8, y+8);
glTexCoord2f (fcol, frow + size);
glVertex2f (x, y+8);
glEnd ();
}
/*
================
Draw_String
================
*/
void Draw_String (int x, int y, char *str)
{
while (*str)
{
Draw_Character (x, y, *str++);
x += 8;
}
}
/*
================
Draw_DebugChar
Draws a single character directly to the upper right corner of the screen.
This is for debugging lockups by drawing different chars in different parts
of the code.
================
*/
void Draw_DebugChar (char num)
{
}
/*
=============
Draw_AlphaColourPic
=============
*/
void Draw_AlphaColourPic (int x, int y, qpic_t *pic, vec3_t colour, float alpha)
{
glpic_t *gl;
gl = (glpic_t *)pic->data;
if (alpha!=1){
glDisable(GL_ALPHA_TEST);
glEnable (GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
glColor4f (colour[0],colour[1],colour[2],alpha);
glBindTexture(GL_TEXTURE_2D,gl->texnum);
glBegin (GL_QUADS);
glTexCoord2f (gl->sl, gl->tl); glVertex2f (x, y);
glTexCoord2f (gl->sh, gl->tl); glVertex2f (x+pic->width, y);
glTexCoord2f (gl->sh, gl->th); glVertex2f (x+pic->width, y+pic->height);
glTexCoord2f (gl->sl, gl->th); glVertex2f (x, y+pic->height);
glEnd ();
glColor4f (1,1,1,1);
if (alpha!=1){
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glEnable(GL_ALPHA_TEST);
glDisable (GL_BLEND);
}
}
/*
=============
Draw_AlphaPic
=============
*/
void Draw_AlphaPic (int x, int y, qpic_t *pic, float alpha)
{
glpic_t *gl;
gl = (glpic_t *)pic->data;
if (alpha!=1){
glDisable(GL_ALPHA_TEST);
glEnable (GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
glColor4f (1,1,1,alpha);
glBindTexture(GL_TEXTURE_2D,gl->texnum);
glBegin (GL_QUADS);
glTexCoord2f (gl->sl, gl->tl); glVertex2f (x, y);
glTexCoord2f (gl->sh, gl->tl); glVertex2f (x+pic->width, y);
glTexCoord2f (gl->sh, gl->th); glVertex2f (x+pic->width, y+pic->height);
glTexCoord2f (gl->sl, gl->th); glVertex2f (x, y+pic->height);
glEnd ();
glColor4f (1,1,1,1);
if (alpha!=1){
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glEnable(GL_ALPHA_TEST);
glDisable (GL_BLEND);
}
}
/*
=============
Draw_TransPic
=============
*/
void Draw_TransPic (int x, int y, qpic_t *pic)
{
if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 ||
(unsigned)(y + pic->height) > vid.height)
{
//Sys_Error ("Draw_TransPic: bad coordinates");
}
Draw_AlphaPic (x, y, pic, 1);
}
/*
=============
Draw_TransPicTranslate
Only used for the player color selection menu
=============
*/
void Draw_TransPicTranslate (int x, int y, qpic_t *pic, byte *translation)
{
int v, u, c;
unsigned trans[64*64], *dest;
byte *src;
int p;
glBindTexture(GL_TEXTURE_2D,translate_texture);
c = pic->width * pic->height;
dest = trans;
for (v=0 ; v<64 ; v++, dest += 64)
{
src = &menuplyr_pixels[ ((v*pic->height)>>6) *pic->width];
for (u=0 ; u<64 ; u++)
{
p = src[(u*pic->width)>>6];
if (p == 255)
dest[u] = p;
else
dest[u] = d_8to24table[translation[p]];
}
}
glTexImage2D (GL_TEXTURE_2D, 0, gl_alpha_format, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, trans);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glColor3f (1,1,1);
glBegin (GL_QUADS);
glTexCoord2f (0, 0); glVertex2f (x, y);
glTexCoord2f (1, 0); glVertex2f (x+pic->width, y);
glTexCoord2f (1, 1); glVertex2f (x+pic->width, y+pic->height);
glTexCoord2f (0, 1); glVertex2f (x, y+pic->height);
glEnd ();
}
/*
================
Draw_ConsoleBackground
================
*/
void Draw_ConsoleBackground (int lines)
{
extern void Sys_Strtime(char *buf);
int y = (vid.height * 3) >> 2;
int x, i;
char tl[80]; //Console Clock - Eradicator
char timebuf[20];
if (lines > y)
Draw_AlphaPic(0, lines - vid.height, conback, 1);
else
Draw_AlphaPic (0, lines - vid.height, conback, (float)(gl_conalpha.value * lines)/y);
if ( con_clock.value )
{
Sys_Strtime( timebuf );
y = lines-14;
sprintf (tl, "Time: %s",timebuf); //Console Clock - Eradicator
x = vid.realwidth - (vid.realwidth*12/vid.width*12) + 30;
for (i=0 ; i < strlen(tl) ; i++)
Draw_Character (x + i * 8, y, tl[i] | 0x80);
}
}
void Draw_SpiralConsoleBackground (int lines) //Spiral Console - Eradicator
{
int x, i;
int y;
static float xangle = 0, xfactor = .3f, xstep = .01f;
char tl[80]; //Console Clock - Eradicator
char timebuf[20];
Sys_Strtime( timebuf );
glPushMatrix();
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
xangle += 1.0f;
xfactor += xstep;
if (xfactor > 8 || xfactor < .3f)
xstep = -xstep;
glRotatef(xangle, 0, 0, 1);
glScalef(xfactor, xfactor, xfactor);
y = (vid.height * 3) >> 2;
if (lines > y)
Draw_AlphaPic(0, lines-vid.height, conback, 1);
// Draw_Pic(0, lines-vid.height, conback);
else
Draw_AlphaPic (0, lines - vid.height, conback, (float)(1.2 * lines)/y);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
if ( con_clock.value )
{
y = lines-14;
sprintf (tl, "Time: %s",timebuf); //Console Clock - Eradicator
x = vid.realwidth - (vid.realwidth*12/vid.width*12) + 30;
for (i=0 ; i < strlen(tl) ; i++)
Draw_Character (x + i * 8, y, tl[i] | 0x80);
}
}
/*
=============
Draw_TileClear
This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void Draw_TileClear (int x, int y, int w, int h)
{
glColor4f (0,0.5f,0.5f,0.5f);
glBindTexture(GL_TEXTURE_2D,*(int *)draw_backtile->data);
glDisable (GL_TEXTURE_2D);
glEnable (GL_BLEND);
glBegin (GL_QUADS);
//glTexCoord2f (x/64.0, y/64.0);
glVertex2f (x, y);
//glTexCoord2f ( (x+w)/64.0, y/64.0);
glVertex2f (x+w, y);
//glTexCoord2f ( (x+w)/64.0, (y+h)/64.0);
glVertex2f (x+w, y+h);
//glTexCoord2f ( x/64.0, (y+h)/64.0 );
glVertex2f (x, y+h);
glEnd ();
glDisable (GL_BLEND);
glEnable (GL_TEXTURE_2D);
}
/*
=============
Draw_Fill
Fills a box of pixels with a single color
=============
*/
void Draw_Fill (int x, int y, int w, int h, int c)
{
glDisable (GL_TEXTURE_2D);
glColor3f (host_basepal[c*3]/255.0,
host_basepal[c*3+1]/255.0,
host_basepal[c*3+2]/255.0);
glBegin (GL_QUADS);
glVertex2f (x,y);
glVertex2f (x+w, y);
glVertex2f (x+w, y+h);
glVertex2f (x, y+h);
glEnd ();
glColor3f (1,1,1);
glEnable (GL_TEXTURE_2D);
}
/*
=============
Draw_AlphaFill
JHL: Fills a box of pixels with a single transparent color
=============
*/
void Draw_AlphaFill (int x, int y, int width, int height, vec3_t colour, float alpha)
{
glEnable (GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable (GL_ALPHA_TEST);
glDisable (GL_TEXTURE_2D);
glColor4f (colour[0]/255, colour[1]/255, colour[2]/255, alpha/255);
glBegin (GL_QUADS);
glVertex2f (x,y);
glVertex2f (x+width, y);
glVertex2f (x+width, y+height);
glVertex2f (x, y+height);
glEnd ();
glColor4f (1,1,1,1);
glEnable (GL_ALPHA_TEST);
glEnable (GL_TEXTURE_2D);
glDisable (GL_BLEND);
}
/*
=============
Draw_AlphaFillFade
JHL: Fills a box of pixels with a single transparent color
=============
*/
void Draw_AlphaFillFade (int x, int y, int width, int height, vec3_t colour, float alpha[2])
{
glEnable (GL_BLEND);
glDisable (GL_TEXTURE_2D);
glDisable (GL_ALPHA_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin (GL_QUADS);
glColor4f (colour[0]/255,colour[1]/255,colour[2]/255,alpha[1]/255);
glVertex2f (x,y);