/
gl_draw.c
2666 lines (2220 loc) · 61.4 KB
/
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.
*/
// gl_draw.c -- this is the only file outside the refresh that touches the vid buffer
#include "quakedef.h"
cvar_t scr_conalpha = {"scr_conalpha", "1", true};
cvar_t gl_max_size = {"gl_max_size", "0"};
cvar_t gl_picmip = {"gl_picmip", "0"};
cvar_t gl_texquality = {"gl_texquality", "1"};
cvar_t gl_swapinterval = {"gl_swapinterval", "0", true};
cvar_t gl_warp_image_size = {"gl_warp_image_size", "256", true}; // was 512, for water warp
byte *draw_chars; // 8*8 graphic characters
qpic_t *draw_disc;
qpic_t *draw_backtile;
gltexture_t *notexture;
gltexture_t *nulltexture;
gltexture_t *char_texture;
int indexed_bytes = 1;
int rgba_bytes = 4;
int lightmap_bytes = 4;
#define MAXGLMODES 6
typedef struct
{
int magfilter;
int minfilter;
char *name;
} glmode_t;
glmode_t modes[MAXGLMODES] = {
{GL_NEAREST, GL_NEAREST, "GL_NEAREST"},
{GL_NEAREST, GL_NEAREST_MIPMAP_NEAREST, "GL_NEAREST_MIPMAP_NEAREST"},
{GL_NEAREST, GL_NEAREST_MIPMAP_LINEAR, "GL_NEAREST_MIPMAP_LINEAR"},
{GL_LINEAR, GL_LINEAR, "GL_LINEAR"},
{GL_LINEAR, GL_LINEAR_MIPMAP_NEAREST, "GL_LINEAR_MIPMAP_NEAREST"},
{GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, "GL_LINEAR_MIPMAP_LINEAR"},
};
int gl_texturemode = 3; // linear
int gl_filter_min = GL_LINEAR; // was GL_NEAREST
int gl_filter_mag = GL_LINEAR;
float gl_hardware_max_anisotropy = 1; // just in case
float gl_texture_anisotropy = 1;
qboolean gl_texture_NPOT = false; //ericw
GLint gl_hardware_max_size = 1024; // just in case
//int gl_texture_max_size = 1024;
int gl_warpimage_size = 256; // fitzquake has 512, for water warp
#define MAX_GLTEXTURES 4096 // orig was 1024, prev 2048
gltexture_t *active_gltextures, *free_gltextures;
int numgltextures;
static GLuint currenttexture[3] = {GL_UNUSED_TEXTURE, GL_UNUSED_TEXTURE, GL_UNUSED_TEXTURE}; // to avoid unnecessary texture sets
static GLenum currenttarget = GL_TEXTURE0_ARB;
qboolean mtexenabled = false;
unsigned int d_8to24table[256];
unsigned int d_8to24table_fbright[256];
unsigned int d_8to24table_fbright_fence[256];
unsigned int d_8to24table_nobright[256];
unsigned int d_8to24table_nobright_fence[256];
unsigned int d_8to24table_conchars[256];
const char *gl_vendor;
const char *gl_renderer;
const char *gl_version;
const char *gl_extensions;
qboolean fullsbardraw = false;
qboolean isIntel = false; // intel video workaround
qboolean gl_mtexable = false;
qboolean gl_texture_env_combine = false;
qboolean gl_texture_env_add = false;
qboolean gl_swap_control = false;
int gl_stencilbits;
/*
================================================
OpenGL Stuff
================================================
*/
/*
================
GL_CheckSize
return smallest power of two greater than or equal to size
================
*/
int GL_CheckSize (int size)
{
int checksize;
for (checksize = 1; checksize < size; checksize <<= 1)
;
return checksize;
}
/*
===============
GL_UploadWarpImage
called during init,
choose correct warpimage size and reload existing warpimage textures if needed
===============
*/
void GL_UploadWarpImage (void)
{
// int oldsize;
int mark;
gltexture_t *glt;
byte *dummy;
//
// find the new correct size
//
// oldsize = gl_warpimage_size;
if ((int)gl_warp_image_size.value < 32)
Cvar_SetValue ("gl_warp_image_size", 32);
//
// make sure warpimage size is a power of two
//
// gl_warpimage_size = GL_CheckSize((int)gl_warp_image_size.value);
gl_warpimage_size = TexMgr_SafeTextureSize((int)gl_warp_image_size.value);
while (gl_warpimage_size > vid.width)
gl_warpimage_size >>= 1;
while (gl_warpimage_size > vid.height)
gl_warpimage_size >>= 1;
if (gl_warpimage_size != gl_warp_image_size.value)
Cvar_SetValue ("gl_warp_image_size", gl_warpimage_size);
// if (gl_warpimage_size == oldsize)
// return;
// ericw -- removed early exit if (gl_warpimage_size == oldsize).
// after reloads textures to source width/height, which might not match oldsize.
//
// resize the textures in opengl
//
mark = Hunk_LowMark ();
dummy = Hunk_Alloc (gl_warpimage_size*gl_warpimage_size*4);
for (glt=active_gltextures; glt; glt=glt->next)
{
if (glt->flags & TEXPREF_WARPIMAGE)
{
GL_Bind (glt);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB, gl_warpimage_size, gl_warpimage_size, 0, GL_RGBA, GL_UNSIGNED_BYTE, dummy);
glt->width = glt->height = gl_warpimage_size;
// set filter modes
GL_SetFilterModes (glt);
}
}
Hunk_FreeToLowMark (mark);
}
/*
===============
GL_CheckExtensions
===============
*/
void GL_CheckExtensions (void)
{
qboolean ARB = false;
qboolean EXTcombine, ARBcombine;
qboolean EXTadd, ARBadd;
#if !defined __APPLE__ && !defined __MACH__
qboolean SWAPcontrol;
#endif
qboolean anisotropy;
qboolean npot;
int units;
//
// poll max size from hardware
//
glGetIntegerv (GL_MAX_TEXTURE_SIZE, &gl_hardware_max_size);
Con_Printf ("Maximum texture size %i\n", gl_hardware_max_size);
// by default we sets maxsize as hardware maxsize
// gl_texture_max_size = gl_hardware_max_size;
//
// Multitexture
//
ARB = strstr (gl_extensions, "GL_ARB_multitexture") != NULL;
if (COM_CheckParm("-nomtex"))
{
Con_Warning ("Multitexture disabled at command line\n");
}
else if (ARB)
{
// Check how many texture units there actually are
glGetIntegerv (GL_MAX_TEXTURE_UNITS_ARB, &units);
qglMultiTexCoord2f = (void *) qglGetProcAddress ("glMultiTexCoord2fARB");
qglActiveTexture = (void *) qglGetProcAddress ("glActiveTextureARB");
qglClientActiveTexture = (void *) qglGetProcAddress ("glClientActiveTextureARB");
if (units < 2)
{
Con_Warning ("Only %i TMU available, multitexture not supported\n", units);
}
else if (!qglMultiTexCoord2f || !qglActiveTexture || !qglClientActiveTexture)
{
Con_Warning ("Multitexture not supported (qglGetProcAddress failed)\n");
}
else
{
Con_Printf ("GL_ARB_multitexture extension found\n");
Con_Printf (" %i TMUs on hardware\n", units);
gl_mtexable = true;
}
}
else
{
Con_Warning ("Multitexture not supported (extension not found)\n");
}
//
// Texture combine environment mode
//
ARBcombine = strstr (gl_extensions, "GL_ARB_texture_env_combine") != NULL;
EXTcombine = strstr (gl_extensions, "GL_EXT_texture_env_combine") != NULL;
if (COM_CheckParm("-nocombine"))
{
Con_Warning ("Texture combine environment disabled at command line\n");
}
else if (ARBcombine || EXTcombine)
{
Con_Printf ("GL_%s_texture_env_combine extension found\n", ARBcombine ? "ARB" : "EXT");
gl_texture_env_combine = true;
}
else
{
Con_Warning ("Texture combine environment not supported (extension not found)\n");
}
//
// Texture add environment mode
//
ARBadd = strstr (gl_extensions, "GL_ARB_texture_env_add") != NULL;
EXTadd = strstr (gl_extensions, "GL_EXT_texture_env_add") != NULL;
if (COM_CheckParm("-noadd"))
{
Con_Warning ("Texture add environment disabled at command line\n");
}
else if (ARBadd || EXTadd)
{
Con_Printf ("GL_%s_texture_env_add extension found\n", ARBadd ? "ARB" : "EXT");
gl_texture_env_add = true;
}
else
{
Con_Warning ("Texture add environment not supported (extension not found)\n");
}
//
// Swap control
//
#ifdef _WIN32
SWAPcontrol = strstr (gl_extensions, SWAPCONTROLSTRING) != NULL;
#elif defined GLX_GLXEXT_PROTOTYPES
SWAPcontrol = strstr (glx_extensions, SWAPCONTROLSTRING) != NULL;
#endif
#if !defined __APPLE__ && !defined __MACH__
if (COM_CheckParm("-novsync"))
{
Con_Warning ("Vertical sync disabled at command line\n");
}
else if (SWAPcontrol)
{
qglSwapInterval = (void *) qglGetProcAddress (SWAPINTERVALFUNC);
if (qglSwapInterval)
{
if (!qglSwapInterval(0))
Con_Warning ("Vertical sync not supported (%s failed)\n", SWAPINTERVALFUNC);
else
{
Con_Printf ("%s extension found\n", SWAPCONTROLSTRING);
gl_swap_control = true;
}
}
else
Con_Warning ("Vertical sync not supported (qglGetProcAddress failed)\n");
}
else
Con_Warning ("Vertical sync not supported (extension not found)\n");
#endif
//
// Anisotropic filtering
//
anisotropy = strstr (gl_extensions, "GL_EXT_texture_filter_anisotropic") != NULL;
if (COM_CheckParm("-noanisotropy"))
{
Con_Warning ("Anisotropic filtering disabled at command line\n");
}
else if (anisotropy)
{
float test1, test2;
GLuint tex;
// test to make sure we really have control over it
// 1.0 and 2.0 should always be legal values
glGenTextures (1, &tex);
glBindTexture (GL_TEXTURE_2D, tex);
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f);
glGetTexParameterfv (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &test1);
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 2.0f);
glGetTexParameterfv (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &test2);
glDeleteTextures (1, &tex);
if (test1 == 1 && test2 == 2)
Con_Printf ("GL_EXT_texture_filter_anisotropic extension found\n");
else
Con_Warning ("Anisotropic filtering locked by driver. Current driver setting is %f\n", test1);
// get max value either way, so the menu and stuff know it
glGetFloatv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_hardware_max_anisotropy);
}
else
{
Con_Warning ("Anisotropic filtering not supported (extension not found)\n");
}
//
// Texture non power of two
//
npot = strstr (gl_extensions, "GL_ARB_texture_non_power_of_two") != NULL;
if (COM_CheckParm("-notexturenpot"))
{
Con_Warning ("Texture non power of two disabled at command line\n");
}
else if (npot)
{
Con_Printf ("GL_ARB_texture_non_power_of_two extension found\n");
gl_texture_NPOT = true;
}
else
{
Con_Warning ("Texture non power of two not supported (extension not found)\n");
}
// read stencil bits
glGetIntegerv (GL_STENCIL_BITS, &gl_stencilbits);
}
/*
===============
GL_MakeExtensionsList
===============
*/
char *GL_MakeExtensionsList (char *in)
{
char *copy, *token, *out;
int i, count;
if (!in)
return Z_Strdup ("(none)");
// each space will be replaced by 4 chars, so count the spaces before we malloc
for (i = 0, count = 1; i < (int)strlen(in); i++)
if (in[i] == ' ')
count++;
out = Z_Malloc (strlen(in) + count*3 + 1); // usually about 1-2k
out[0] = 0;
copy = Z_Strdup (in);
for (token = strtok(copy, " "); token; token = strtok(NULL, " "))
{
strcat(out, "\n ");
strcat(out, token);
}
Z_Free (copy);
return out;
}
/*
===============
GL_Info_f
===============
*/
void GL_Info_f (void)
{
static char *gl_extensions_nice = NULL;
#ifdef GLX_GLXEXT_PROTOTYPES
static char *glx_extensions_nice = NULL;
#endif
if (!gl_extensions_nice)
gl_extensions_nice = GL_MakeExtensionsList (gl_extensions);
#ifdef GLX_GLXEXT_PROTOTYPES
if (!glx_extensions_nice)
glx_extensions_nice = GL_MakeExtensionsList (glx_extensions);
#endif
Con_SafePrintf ("GL_VENDOR: %s\n", gl_vendor);
Con_SafePrintf ("GL_RENDERER: %s\n", gl_renderer);
Con_SafePrintf ("GL_VERSION: %s\n", gl_version);
Con_SafePrintf ("GL_EXTENSIONS: %s\n", gl_extensions_nice);
#ifdef GLX_GLXEXT_PROTOTYPES
Con_SafePrintf ("GLX_EXTENSIONS: %s\n", glx_extensions_nice);
#endif
}
/*
===============
GL_SwapInterval
===============
*/
#if defined __APPLE__ && defined __MACH__
void CGL_SwapInterval (qboolean enable);
#endif
void GL_SwapInterval (void)
{
#if !defined __APPLE__ && !defined __MACH__
if (gl_swap_control)
{
if (gl_swapinterval.value)
{
if (!qglSwapInterval(1))
Con_Printf ("GL_SwapInterval: failed on %s\n", SWAPINTERVALFUNC);
}
else
{
if (!qglSwapInterval(0))
Con_Printf ("GL_SwapInterval: failed on %s\n", SWAPINTERVALFUNC);
}
}
#else
if (gl_swapinterval.value) {
CGL_SwapInterval(true);
} else {
CGL_SwapInterval(false);
}
#endif
}
/*
===============
GL_SetupState
does all the stuff from GL_Init that needs to be done every time a new GL render context is created
GL_Init will still do the stuff that only needs to be done once
===============
*/
void GL_SetupState (void)
{
glClearColor (0.15,0.15,0.15,0); // originally was 1,0,0,0
// glCullFace (GL_FRONT);
glCullFace (GL_BACK); // johnfitz -- glquake used CCW with backwards culling -- let's do it right
glFrontFace (GL_CW); // johnfitz -- glquake used CCW with backwards culling -- let's do it right
glEnable (GL_TEXTURE_2D);
glEnable (GL_ALPHA_TEST);
glAlphaFunc (GL_GREATER, 0.666);
glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
glShadeModel (GL_FLAT);
glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glDepthRange (0, 1); // moved here because gl_ztrick is gone.
glDepthFunc (GL_LEQUAL); // moved here because gl_ztrick is gone.
}
/*
===============
GL_Init
===============
*/
void GL_Init (void)
{
// gl_info
gl_vendor = (const char *)glGetString (GL_VENDOR);
gl_renderer = (const char *)glGetString (GL_RENDERER);
gl_version = (const char *)glGetString (GL_VERSION);
gl_extensions = (const char *)glGetString (GL_EXTENSIONS);
Cmd_AddCommand ("gl_info", GL_Info_f);
Cmd_AddCommand ("gl_reloadtextures", GL_ReloadTextures_f);
Cvar_RegisterVariable (&gl_swapinterval, GL_SwapInterval);
Con_Printf ("OpenGL initialized\n");
GL_CheckExtensions ();
if (!strcmp(gl_vendor, "Intel")) // intel video workaround
{
Con_Printf ("Intel Display Adapter detected\n");
isIntel = true;
}
GL_SetupState ();
}
/*
================
GL_Bind
================
*/
void GL_Bind (gltexture_t *texture)
{
if (!texture)
texture = nulltexture;
if (texture->texnum != currenttexture[currenttarget - GL_TEXTURE0_ARB])
{
currenttexture[currenttarget - GL_TEXTURE0_ARB] = texture->texnum;
glBindTexture (GL_TEXTURE_2D, texture->texnum);
}
}
/*
================
GL_DeleteTexture -- ericw
Wrapper around glDeleteTextures that also clears the given texture number
from our per-TMU cached texture binding table.
================
*/
void GL_DeleteTexture (gltexture_t *texture)
{
glDeleteTextures (1, &texture->texnum);
if (texture->texnum == currenttexture[0]) currenttexture[0] = GL_UNUSED_TEXTURE;
if (texture->texnum == currenttexture[1]) currenttexture[1] = GL_UNUSED_TEXTURE;
if (texture->texnum == currenttexture[2]) currenttexture[2] = GL_UNUSED_TEXTURE;
texture->texnum = 0;
}
/*
================
GL_ClearBindings -- ericw
Invalidates cached bindings, so the next GL_Bind calls for each TMU will
make real glBindTexture calls.
Call this after changing the binding outside of GL_Bind.
================
*/
void GL_ClearBindings(void)
{
int i;
for (i = 0; i < 3; i++)
{
currenttexture[i] = GL_UNUSED_TEXTURE;
}
}
/*
================
GL_SelectTexture
================
*/
void GL_SelectTexture (GLenum target)
{
if (target == currenttarget)
return;
qglActiveTexture (target);
currenttarget = target;
}
/*
================
GL_DisableMultitexture
selects texture unit 0
================
*/
void GL_DisableMultitexture (void)
{
if (mtexenabled)
{
glDisable (GL_TEXTURE_2D);
GL_SelectTexture (GL_TEXTURE0_ARB);
mtexenabled = false;
}
}
/*
================
GL_EnableMultitexture
selects texture unit 1
================
*/
void GL_EnableMultitexture (void)
{
if (gl_mtexable)
{
GL_SelectTexture (GL_TEXTURE1_ARB);
glEnable (GL_TEXTURE_2D);
mtexenabled = true;
}
}
/*
=============================================================================
scrap allocation
Allocate all the little status bar objects 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];
qboolean scrap_dirty;
gltexture_t *scrap_textures[MAX_SCRAPS]; // changed to array
// returns a texture number 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;
}
return -1;
}
void Scrap_Upload (void)
{
int i;
char name[64];
for (i = 0; i < MAX_SCRAPS; i++)
{
sprintf (name, "scrap%i", i);
scrap_textures[i] = GL_LoadTexture (NULL, name, BLOCK_WIDTH, BLOCK_HEIGHT, SRC_INDEXED, scrap_texels[i], "", (unsigned)scrap_texels[i], TEXPREF_ALPHA | TEXPREF_OVERWRITE | TEXPREF_NOPICMIP);
}
scrap_dirty = false;
}
//=============================================================================
/* 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];
qpic_t *Draw_PicFromWad (char *name)
{
qpic_t *p;
glpic_t gl;
unsigned offset; //johnfitz
char texturename[64]; //johnfitz
p = W_GetLumpName (name);
// Sanity ...
if (p->width & 0xC0000000 || p->height & 0xC0000000)
Sys_Error ("Draw_PicFromWad: invalid dimensions (%dx%d) for '%s'", p->width, p->height, name);
// 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);
if (texnum == -1)
Sys_Error ("Scrap_AllocBlock: full");
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]; // changed to an array
// 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
{
sprintf (texturename, "%s:%s", WADFILE, name); //johnfitz
offset = (unsigned)p - (unsigned)wad_base + sizeof(int)*2; //johnfitz
gl.gltexture = GL_LoadTexture (NULL, texturename, p->width, p->height, SRC_INDEXED, p->data, WADFILE, offset, TEXPREF_ALPHA | TEXPREF_PAD | TEXPREF_NOPICMIP);
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 (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 ("Draw_CachePic: menu_numcachepics == MAX_CACHED_PICS (%d)", 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;
// fix gcc warnings
gl.gltexture = GL_LoadTexture (NULL, path, dat->width, dat->height, SRC_INDEXED, dat->data, path, sizeof(int)*2, TEXPREF_ALPHA | TEXPREF_PAD | TEXPREF_NOPICMIP);
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;
}
/*
===============
GL_SetFilterModes
===============
*/
void GL_SetFilterModes (gltexture_t *glt)
{
// GL_Bind (glt);
if (glt->flags & TEXPREF_NEAREST)
{
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
else if (glt->flags & TEXPREF_LINEAR)
{
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
else if (glt->flags & TEXPREF_MIPMAP)
{
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, modes[gl_texturemode].magfilter);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, modes[gl_texturemode].minfilter);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, gl_texture_anisotropy);
}
else
{
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, modes[gl_texturemode].magfilter);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, modes[gl_texturemode].magfilter);
}
}
/*
===============
GL_TextureMode_f
===============
*/
void GL_TextureMode_f (void)
{
int i;
char *arg;
gltexture_t *glt;
if (Cmd_Argc() == 1)
{
for (i=0 ; i< MAXGLMODES ; i++)
{
if (gl_filter_min == modes[i].minfilter)
{
Con_Printf ("gl_texturemode is %s (%d)\n", modes[i].name, i + 1);
return;
}
}
}
for (i=0 ; i< MAXGLMODES ; i++)
{
arg = Cmd_Argv(1);
if (!strcasecmp (modes[i].name, arg ) || (isdigit(*arg) && atoi(arg) - 1 == i))
break;
}
if (i == MAXGLMODES)
{
Con_Printf ("bad filter name, available are:\n");
for (i=0 ; i< MAXGLMODES ; i++)
Con_Printf ("%s (%d)\n", modes[i].name, i + 1);
return;
}
gl_texturemode = i;
gl_filter_min = modes[gl_texturemode].minfilter;
gl_filter_mag = modes[gl_texturemode].magfilter;
// change all the existing texture objects
for (glt=active_gltextures; glt; glt=glt->next)
{
GL_Bind (glt);
GL_SetFilterModes (glt);
}
Sbar_Changed (); // sbar graphics need to be redrawn with new filter mode
}
/*
===============
GL_Texture_Anisotropy_f
===============
*/
void GL_Texture_Anisotropy_f (void)
{
gltexture_t *glt;
if (Cmd_Argc() == 1)
{
Con_Printf ("gl_texture_anisotropy is %f, hardware limit is %f\n", gl_texture_anisotropy, gl_hardware_max_anisotropy);
return;
}
gl_texture_anisotropy = CLAMP(1.0f, atof (Cmd_Argv(1)), gl_hardware_max_anisotropy);
for (glt=active_gltextures; glt; glt=glt->next)
{
GL_Bind (glt);
GL_SetFilterModes (glt);
}
}
/*
===============
Pics_Upload
===============
*/
void Pics_Upload (void)
{
unsigned offset; // johnfitz
char texturename[64]; //johnfitz
// 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
draw_chars = W_GetLumpName ("conchars");
if (!draw_chars)
Sys_Error ("Pics_Upload: couldn't load conchars");
// now turn them into textures
sprintf (texturename, "%s:%s", WADFILE, "conchars"); // johnfitz
offset = (unsigned)draw_chars - (unsigned)wad_base;
char_texture = GL_LoadTexture (NULL, texturename, 128, 128, SRC_INDEXED, draw_chars, WADFILE, offset, TEXPREF_ALPHA | TEXPREF_NEAREST | TEXPREF_NOPICMIP | TEXPREF_CONCHARS);
//
// get the other pics we need
//
draw_disc = Draw_PicFromWad ("disc");
draw_backtile = Draw_PicFromWad ("backtile");
}
/*
===============
Draw_Init