quakespasm/Quake/gl_draw.c
Sander van Dijk cb0c84ac9d Revert r731 ("Make the key menu scrollable").
In hindsight this really was "shooting a cannon at a mosquito". Even at a resolution of 320x200 we don't actually draw any keybindings off-screen, we just draw the last one very close to the edge (similar to the version string in the bottom right of the console). Although that is not visually pleasing, it is not that likely to actually occur (not many people will use a resolution of 320x200 or set the 2D scaling to the maximum value), and is not worth always having one keybinding "missing" at any scale setting.

(If we even want/need to readd this, it should work dynamically, e.g. calculate a "virtual resolution" from the actual window resolution and the actual 2D scaling value.)


git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1039 af15c1b1-3010-417e-b628-4374ebc0bcbd
2014-09-20 15:57:33 +00:00

768 lines
18 KiB
C

/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
Copyright (C) 2007-2008 Kristian Duske
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 -- 2d drawing
#include "quakedef.h"
//extern unsigned char d_15to8table[65536]; //johnfitz -- never used
cvar_t scr_conalpha = {"scr_conalpha", "0.5", CVAR_ARCHIVE}; //johnfitz
qpic_t *draw_disc;
qpic_t *draw_backtile;
gltexture_t *char_texture; //johnfitz
qpic_t *pic_ovr, *pic_ins; //johnfitz -- new cursor handling
qpic_t *pic_nul; //johnfitz -- for missing gfx, don't crash
//johnfitz -- new pics
byte pic_ovr_data[8][8] =
{
{255,255,255,255,255,255,255,255},
{255, 15, 15, 15, 15, 15, 15,255},
{255, 15, 15, 15, 15, 15, 15, 2},
{255, 15, 15, 15, 15, 15, 15, 2},
{255, 15, 15, 15, 15, 15, 15, 2},
{255, 15, 15, 15, 15, 15, 15, 2},
{255, 15, 15, 15, 15, 15, 15, 2},
{255,255, 2, 2, 2, 2, 2, 2},
};
byte pic_ins_data[9][8] =
{
{ 15, 15,255,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{ 15, 15, 2,255,255,255,255,255},
{255, 2, 2,255,255,255,255,255},
};
byte pic_nul_data[8][8] =
{
{252,252,252,252, 0, 0, 0, 0},
{252,252,252,252, 0, 0, 0, 0},
{252,252,252,252, 0, 0, 0, 0},
{252,252,252,252, 0, 0, 0, 0},
{ 0, 0, 0, 0,252,252,252,252},
{ 0, 0, 0, 0,252,252,252,252},
{ 0, 0, 0, 0,252,252,252,252},
{ 0, 0, 0, 0,252,252,252,252},
};
byte pic_stipple_data[8][8] =
{
{255, 0, 0, 0,255, 0, 0, 0},
{ 0, 0,255, 0, 0, 0,255, 0},
{255, 0, 0, 0,255, 0, 0, 0},
{ 0, 0,255, 0, 0, 0,255, 0},
{255, 0, 0, 0,255, 0, 0, 0},
{ 0, 0,255, 0, 0, 0,255, 0},
{255, 0, 0, 0,255, 0, 0, 0},
{ 0, 0,255, 0, 0, 0,255, 0},
};
byte pic_crosshair_data[8][8] =
{
{255,255,255,255,255,255,255,255},
{255,255,255, 8, 9,255,255,255},
{255,255,255, 6, 8, 2,255,255},
{255, 6, 8, 8, 6, 8, 8,255},
{255,255, 2, 8, 8, 2, 2, 2},
{255,255,255, 7, 8, 2,255,255},
{255,255,255,255, 2, 2,255,255},
{255,255,255,255,255,255,255,255},
};
//johnfitz
typedef struct
{
gltexture_t *gltexture;
float sl, tl, sh, th;
} glpic_t;
canvastype currentcanvas = CANVAS_NONE; //johnfitz -- for GL_SetCanvas
//==============================================================================
//
// PIC CACHING
//
//==============================================================================
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];
// scrap allocation
// Allocate all the little status bar obejcts into a single texture
// to crutch up stupid hardware / drivers
#define MAX_SCRAPS 2
#define BLOCK_WIDTH 256
#define BLOCK_HEIGHT 256
int scrap_allocated[MAX_SCRAPS][BLOCK_WIDTH];
byte scrap_texels[MAX_SCRAPS][BLOCK_WIDTH*BLOCK_HEIGHT]; //johnfitz -- removed *4 after BLOCK_HEIGHT
qboolean scrap_dirty;
gltexture_t *scrap_textures[MAX_SCRAPS]; //johnfitz
/*
================
Scrap_AllocBlock
returns an index into scrap_texnums[] and the position inside it
================
*/
int Scrap_AllocBlock (int w, int h, int *x, int *y)
{
int i, j;
int best, best2;
int texnum;
for (texnum=0 ; texnum<MAX_SCRAPS ; texnum++)
{
best = BLOCK_HEIGHT;
for (i=0 ; i<BLOCK_WIDTH-w ; i++)
{
best2 = 0;
for (j=0 ; j<w ; j++)
{
if (scrap_allocated[texnum][i+j] >= best)
break;
if (scrap_allocated[texnum][i+j] > best2)
best2 = scrap_allocated[texnum][i+j];
}
if (j == w)
{ // this is a valid spot
*x = i;
*y = best = best2;
}
}
if (best + h > BLOCK_HEIGHT)
continue;
for (i=0 ; i<w ; i++)
scrap_allocated[texnum][*x + i] = best + h;
return texnum;
}
Sys_Error ("Scrap_AllocBlock: full"); //johnfitz -- correct function name
return 0; //johnfitz -- shut up compiler
}
/*
================
Scrap_Upload -- johnfitz -- now uses TexMgr
================
*/
void Scrap_Upload (void)
{
char name[8];
int i;
for (i=0; i<MAX_SCRAPS; i++)
{
sprintf (name, "scrap%i", i);
scrap_textures[i] = TexMgr_LoadImage (NULL, name, BLOCK_WIDTH, BLOCK_HEIGHT, SRC_INDEXED, scrap_texels[i],
"", (src_offset_t)scrap_texels[i], TEXPREF_ALPHA | TEXPREF_OVERWRITE | TEXPREF_NOPICMIP);
}
scrap_dirty = false;
}
/*
================
Draw_PicFromWad
================
*/
qpic_t *Draw_PicFromWad (const char *name)
{
qpic_t *p;
glpic_t gl;
src_offset_t offset; //johnfitz
p = (qpic_t *) W_GetLumpName (name);
if (!p) return pic_nul; //johnfitz
// load little ones into the scrap
if (p->width < 64 && p->height < 64)
{
int x, y;
int i, j, k;
int texnum;
texnum = Scrap_AllocBlock (p->width, p->height, &x, &y);
scrap_dirty = true;
k = 0;
for (i=0 ; i<p->height ; i++)
{
for (j=0 ; j<p->width ; j++, k++)
scrap_texels[texnum][(y+i)*BLOCK_WIDTH + x + j] = p->data[k];
}
gl.gltexture = scrap_textures[texnum]; //johnfitz -- changed to an array
//johnfitz -- no longer go from 0.01 to 0.99
gl.sl = x/(float)BLOCK_WIDTH;
gl.sh = (x+p->width)/(float)BLOCK_WIDTH;
gl.tl = y/(float)BLOCK_WIDTH;
gl.th = (y+p->height)/(float)BLOCK_WIDTH;
}
else
{
char texturename[64]; //johnfitz
q_snprintf (texturename, sizeof(texturename), "%s:%s", WADFILENAME, name); //johnfitz
offset = (src_offset_t)p - (src_offset_t)wad_base + sizeof(int)*2; //johnfitz
gl.gltexture = TexMgr_LoadImage (NULL, texturename, p->width, p->height, SRC_INDEXED, p->data, WADFILENAME,
offset, TEXPREF_ALPHA | TEXPREF_PAD | TEXPREF_NOPICMIP); //johnfitz -- TexMgr
gl.sl = 0;
gl.sh = (float)p->width/(float)TexMgr_PadConditional(p->width); //johnfitz
gl.tl = 0;
gl.th = (float)p->height/(float)TexMgr_PadConditional(p->height); //johnfitz
}
memcpy (p->data, &gl, sizeof(glpic_t));
return p;
}
/*
================
Draw_CachePic
================
*/
qpic_t *Draw_CachePic (const 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, NULL);
if (!dat)
Sys_Error ("Draw_CachePic: failed to load %s", path);
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.gltexture = TexMgr_LoadImage (NULL, path, dat->width, dat->height, SRC_INDEXED, dat->data, path,
sizeof(int)*2, TEXPREF_ALPHA | TEXPREF_PAD | TEXPREF_NOPICMIP); //johnfitz -- TexMgr
gl.sl = 0;
gl.sh = (float)dat->width/(float)TexMgr_PadConditional(dat->width); //johnfitz
gl.tl = 0;
gl.th = (float)dat->height/(float)TexMgr_PadConditional(dat->height); //johnfitz
memcpy (pic->pic.data, &gl, sizeof(glpic_t));
return &pic->pic;
}
/*
================
Draw_MakePic -- johnfitz -- generate pics from internal data
================
*/
qpic_t *Draw_MakePic (const char *name, int width, int height, byte *data)
{
int flags = TEXPREF_NEAREST | TEXPREF_ALPHA | TEXPREF_PERSIST | TEXPREF_NOPICMIP | TEXPREF_PAD;
qpic_t *pic;
glpic_t gl;
pic = (qpic_t *) Hunk_Alloc (sizeof(qpic_t) - 4 + sizeof (glpic_t));
pic->width = width;
pic->height = height;
gl.gltexture = TexMgr_LoadImage (NULL, name, width, height, SRC_INDEXED, data, "", (src_offset_t)data, flags);
gl.sl = 0;
gl.sh = (float)width/(float)TexMgr_PadConditional(width);
gl.tl = 0;
gl.th = (float)height/(float)TexMgr_PadConditional(height);
memcpy (pic->data, &gl, sizeof(glpic_t));
return pic;
}
//==============================================================================
//
// INIT
//
//==============================================================================
/*
===============
Draw_LoadPics -- johnfitz
===============
*/
void Draw_LoadPics (void)
{
byte *data;
src_offset_t offset;
data = (byte *) W_GetLumpName ("conchars");
if (!data) Sys_Error ("Draw_LoadPics: couldn't load conchars");
offset = (src_offset_t)data - (src_offset_t)wad_base;
char_texture = TexMgr_LoadImage (NULL, WADFILENAME":conchars", 128, 128, SRC_INDEXED, data,
WADFILENAME, offset, TEXPREF_ALPHA | TEXPREF_NEAREST | TEXPREF_NOPICMIP | TEXPREF_CONCHARS);
draw_disc = Draw_PicFromWad ("disc");
draw_backtile = Draw_PicFromWad ("backtile");
}
/*
===============
Draw_NewGame -- johnfitz
===============
*/
void Draw_NewGame (void)
{
cachepic_t *pic;
int i;
// empty scrap and reallocate gltextures
memset(&scrap_allocated, 0, sizeof(scrap_allocated));
memset(&scrap_texels, 255, sizeof(scrap_texels));
Scrap_Upload (); //creates 2 empty gltextures
// reload wad pics
W_LoadWadFile (); //johnfitz -- filename is now hard-coded for honesty
Draw_LoadPics ();
SCR_LoadPics ();
Sbar_LoadPics ();
// empty lmp cache
for (pic = menu_cachepics, i = 0; i < menu_numcachepics; pic++, i++)
pic->name[0] = 0;
menu_numcachepics = 0;
}
/*
===============
Draw_Init -- johnfitz -- rewritten
===============
*/
void Draw_Init (void)
{
Cvar_RegisterVariable (&scr_conalpha);
// clear scrap and allocate gltextures
memset(&scrap_allocated, 0, sizeof(scrap_allocated));
memset(&scrap_texels, 255, sizeof(scrap_texels));
Scrap_Upload (); //creates 2 empty textures
// create internal pics
pic_ins = Draw_MakePic ("ins", 8, 9, &pic_ins_data[0][0]);
pic_ovr = Draw_MakePic ("ovr", 8, 8, &pic_ovr_data[0][0]);
pic_nul = Draw_MakePic ("nul", 8, 8, &pic_nul_data[0][0]);
// load game pics
Draw_LoadPics ();
}
//==============================================================================
//
// 2D DRAWING
//
//==============================================================================
/*
================
Draw_CharacterQuad -- johnfitz -- seperate function to spit out verts
================
*/
void Draw_CharacterQuad (int x, int y, char num)
{
int row, col;
float frow, fcol, size;
row = num>>4;
col = num&15;
frow = row*0.0625;
fcol = col*0.0625;
size = 0.0625;
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);
}
/*
================
Draw_Character -- johnfitz -- modified to call Draw_CharacterQuad
================
*/
void Draw_Character (int x, int y, int num)
{
if (y <= -8)
return; // totally off screen
num &= 255;
if (num == 32)
return; //don't waste verts on spaces
GL_Bind (char_texture);
glBegin (GL_QUADS);
Draw_CharacterQuad (x, y, (char) num);
glEnd ();
}
/*
================
Draw_String -- johnfitz -- modified to call Draw_CharacterQuad
================
*/
void Draw_String (int x, int y, const char *str)
{
if (y <= -8)
return; // totally off screen
GL_Bind (char_texture);
glBegin (GL_QUADS);
while (*str)
{
if (*str != 32) //don't waste verts on spaces
Draw_CharacterQuad (x, y, *str);
str++;
x += 8;
}
glEnd ();
}
/*
=============
Draw_Pic -- johnfitz -- modified
=============
*/
void Draw_Pic (int x, int y, qpic_t *pic)
{
glpic_t *gl;
if (scrap_dirty)
Scrap_Upload ();
gl = (glpic_t *)pic->data;
GL_Bind (gl->gltexture);
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 ();
}
/*
=============
Draw_TransPicTranslate -- johnfitz -- rewritten to use texmgr to do translation
Only used for the player color selection menu
=============
*/
void Draw_TransPicTranslate (int x, int y, qpic_t *pic, int top, int bottom)
{
static int oldtop = -2;
static int oldbottom = -2;
if (top != oldtop || bottom != oldbottom)
{
glpic_t *p = (glpic_t *)pic->data;
gltexture_t *glt = p->gltexture;
oldtop = top;
oldbottom = bottom;
TexMgr_ReloadImage (glt, top, bottom);
}
Draw_Pic (x, y, pic);
}
/*
================
Draw_ConsoleBackground -- johnfitz -- rewritten
================
*/
void Draw_ConsoleBackground (void)
{
qpic_t *pic;
float alpha;
pic = Draw_CachePic ("gfx/conback.lmp");
pic->width = vid.conwidth;
pic->height = vid.conheight;
alpha = (con_forcedup) ? 1.0 : scr_conalpha.value;
GL_SetCanvas (CANVAS_CONSOLE); //in case this is called from weird places
if (alpha > 0.0)
{
if (alpha < 1.0)
{
glEnable (GL_BLEND);
glColor4f (1,1,1,alpha);
glDisable (GL_ALPHA_TEST);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
Draw_Pic (0, 0, pic);
if (alpha < 1.0)
{
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glEnable (GL_ALPHA_TEST);
glDisable (GL_BLEND);
glColor4f (1,1,1,1);
}
}
}
/*
=============
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)
{
glpic_t *gl;
gl = (glpic_t *)draw_backtile->data;
glColor3f (1,1,1);
GL_Bind (gl->gltexture);
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 ();
}
/*
=============
Draw_Fill
Fills a box of pixels with a single color
=============
*/
void Draw_Fill (int x, int y, int w, int h, int c, float alpha) //johnfitz -- added alpha
{
byte *pal = (byte *)d_8to24table; //johnfitz -- use d_8to24table instead of host_basepal
glDisable (GL_TEXTURE_2D);
glEnable (GL_BLEND); //johnfitz -- for alpha
glDisable (GL_ALPHA_TEST); //johnfitz -- for alpha
glColor4f (pal[c*4]/255.0, pal[c*4+1]/255.0, pal[c*4+2]/255.0, alpha); //johnfitz -- added alpha
glBegin (GL_QUADS);
glVertex2f (x,y);
glVertex2f (x+w, y);
glVertex2f (x+w, y+h);
glVertex2f (x, y+h);
glEnd ();
glColor3f (1,1,1);
glDisable (GL_BLEND); //johnfitz -- for alpha
glEnable (GL_ALPHA_TEST); //johnfitz -- for alpha
glEnable (GL_TEXTURE_2D);
}
/*
================
Draw_FadeScreen -- johnfitz -- revised
================
*/
void Draw_FadeScreen (void)
{
GL_SetCanvas (CANVAS_DEFAULT);
glEnable (GL_BLEND);
glDisable (GL_ALPHA_TEST);
glDisable (GL_TEXTURE_2D);
glColor4f (0, 0, 0, 0.5);
glBegin (GL_QUADS);
glVertex2f (0,0);
glVertex2f (glwidth, 0);
glVertex2f (glwidth, glheight);
glVertex2f (0, glheight);
glEnd ();
glColor4f (1,1,1,1);
glEnable (GL_TEXTURE_2D);
glEnable (GL_ALPHA_TEST);
glDisable (GL_BLEND);
Sbar_Changed();
}
/*
================
GL_SetCanvas -- johnfitz -- support various canvas types
================
*/
void GL_SetCanvas (canvastype newcanvas)
{
extern vrect_t scr_vrect;
float s;
int lines;
if (newcanvas == currentcanvas)
return;
currentcanvas = newcanvas;
glMatrixMode(GL_PROJECTION);
glLoadIdentity ();
switch(newcanvas)
{
case CANVAS_DEFAULT:
glOrtho (0, glwidth, glheight, 0, -99999, 99999);
glViewport (glx, gly, glwidth, glheight);
break;
case CANVAS_CONSOLE:
lines = vid.conheight - (scr_con_current * vid.conheight / glheight);
glOrtho (0, vid.conwidth, vid.conheight + lines, lines, -99999, 99999);
glViewport (glx, gly, glwidth, glheight);
break;
case CANVAS_MENU:
s = q_min((float)glwidth / 320.0, (float)glheight / 200.0);
s = CLAMP (1.0, scr_menuscale.value, s);
glOrtho (0, 320, 200, 0, -99999, 99999);
glViewport (glx + (glwidth - 320*s) / 2, gly + (glheight - 200*s) / 2, 320*s, 200*s);
break;
case CANVAS_SBAR:
s = CLAMP (1.0, scr_sbarscale.value, (float)glwidth / 320.0);
if (cl.gametype == GAME_DEATHMATCH)
{
glOrtho (0, glwidth / s, 48, 0, -99999, 99999);
glViewport (glx, gly, glwidth, 48*s);
}
else
{
glOrtho (0, 320, 48, 0, -99999, 99999);
glViewport (glx + (glwidth - 320*s) / 2, gly, 320*s, 48*s);
}
break;
case CANVAS_WARPIMAGE:
glOrtho (0, 128, 0, 128, -99999, 99999);
glViewport (glx, gly+glheight-gl_warpimagesize, gl_warpimagesize, gl_warpimagesize);
break;
case CANVAS_CROSSHAIR: //0,0 is center of viewport
s = CLAMP (1.0, scr_crosshairscale.value, 10.0);
glOrtho (scr_vrect.width/-2/s, scr_vrect.width/2/s, scr_vrect.height/2/s, scr_vrect.height/-2/s, -99999, 99999);
glViewport (scr_vrect.x, glheight - scr_vrect.y - scr_vrect.height, scr_vrect.width & ~1, scr_vrect.height & ~1);
break;
case CANVAS_BOTTOMLEFT: //used by devstats
s = (float)glwidth/vid.conwidth; //use console scale
glOrtho (0, 320, 200, 0, -99999, 99999);
glViewport (glx, gly, 320*s, 200*s);
break;
case CANVAS_BOTTOMRIGHT: //used by fps/clock
s = (float)glwidth/vid.conwidth; //use console scale
glOrtho (0, 320, 200, 0, -99999, 99999);
glViewport (glx+glwidth-320*s, gly, 320*s, 200*s);
break;
case CANVAS_TOPRIGHT: //used by disc
s = 1;
glOrtho (0, 320, 200, 0, -99999, 99999);
glViewport (glx+glwidth-320*s, gly+glheight-200*s, 320*s, 200*s);
break;
default:
Sys_Error ("GL_SetCanvas: bad canvas type");
}
glMatrixMode(GL_MODELVIEW);
glLoadIdentity ();
}
/*
================
GL_Set2D -- johnfitz -- rewritten
================
*/
void GL_Set2D (void)
{
currentcanvas = CANVAS_INVALID;
GL_SetCanvas (CANVAS_DEFAULT);
glDisable (GL_DEPTH_TEST);
glDisable (GL_CULL_FACE);
glDisable (GL_BLEND);
glEnable (GL_ALPHA_TEST);
glColor4f (1,1,1,1);
}