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fteqw/engine/gl/gl_shader.c
Spoike 2e1a70e319 rewrote ban code, merging bans+nonbans+cuffs+mute+cripple+deaf+lagged+vip. added timeouts. new penalties have no dedicated command. use the addip command for it. 
maplist command now generates links.
implemented skin objects for q3. added a csqc builtin for it. also supports compositing skins.
playing demos inside zips/pk3s/paks should now work.
bumped default rate cvar.
added cl_transfer to attempt to connect to a new server without disconnecting first.
rewrote fog command. alpha and mindist arguments are now supported. fog change also happens over a short time period.
added new args to the showpic console command. can now create clickable items for touchscreen/absmouse users.
fixed menus to properly support right-aligned text. this finally fixes variable-width fonts.
rewrote console tab completion suggestions display. now clickable links.
strings obtained from qc are now marked as const. this has required quite a few added consts all over the place.
probably crappy attempt at adding joypad support to the sdl port. no idea if it works.
changed key bind event code. buttons now track which event they should trigger when released, instead of being the same one the whole time. this allows +forward etc clickable buttons on screen. Also simplified modifier keys - they no longer trigger random events when pressing the modifier key itself.
Right modifiers can now be bound separately from left modifiers. Right will use left's binding if not otherwise bound. Bind assumes left if there's no prefix.
multiplayer->setup->network menu no longer crashes. added rgb colours to the translation view (but not to the colour-changing keys).
added modelviewer command to view models.
added menu_mods menu to switch mods in a more friendly way. will be shown by default if multiple manifests exist in the binarydir.
clamped classic tracer density. scrag particles no longer look quite so buggy.
added ifdefs to facilitate a potential winrt port. the engine should now have no extra dependencies, but still needs system code+audio drivers to be written.
if it can't set a renderer, it'll now try to use *every* renderer until it finds one that works.
added experimental mapcluster server mode (that console command). New maps will be started up as required.
rewrote skeletal blending code a bit.
added cylinder geomtypes.
fix cfg_save writing to the wrong path bug.
VFS_CLOSE now returns a boolean. false means there was some sort of fatal error (either crc when reading was bad, or the write got corrupted or something). Typically ignorable, depends how robust you want to be.
win32 tls code now supports running as a server. added connect tls://address support, as well as equivalent sv_addport support.
exposed basic model loading api to plugins.
d3d11 backend now optionally supports tessellation hlsl. no suitable hlsl provided by default. !!tess to enable.
attempted to add gamma ramp support for d3d11.
added support for shader blobs to speed up load times. r_shaderblobs 1 to enable. almost vital for d3d11.
added vid_srgb cvar.
shadowless lights are no longer disabled if shadows are not supported.
attempt to add support for touchscreens in win7/8.
Wrote gimmicky lua support, using lua instead of ssqc. define VM_LUA to enable.
updated saved game code. can again load saved games from vanilla-like engines.
changed scale clamping. 0.0001 should no longer appear as 1.
changed default mintic from 0.03 to 0.013 to match vanilla qw. I don't know why it was at 0.03. probably a typo.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4623 fc73d0e0-1445-4013-8a0c-d673dee63da5
2014-03-30 08:55:06 +00:00

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/*
Copyright (C) 2002-2003 Victor Luchits
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_shader.c - based on code by Stephen C. Taylor
// Ported to FTE from qfusion, there are numerous changes since then.
#include "quakedef.h"
#ifndef SERVERONLY
#include "glquake.h"
#include "shader.h"
#include "hash.h"
#include <ctype.h>
#ifdef D3D9QUAKE
#include <d3d9.h>
extern LPDIRECT3DDEVICE9 pD3DDev9;
#endif
extern texid_t missing_texture;
texid_t r_whiteimage;
static qboolean shader_reload_needed;
static qboolean shader_rescan_needed;
sh_config_t sh_config;
//cvars that affect shader generation
cvar_t r_vertexlight = CVARFD("r_vertexlight", "0", CVAR_SHADERSYSTEM, "Hack loaded shaders to remove detail pass and lightmap sampling for faster rendering.");
extern cvar_t r_glsl_offsetmapping_reliefmapping;
extern cvar_t r_deluxemapping;
extern cvar_t r_fastturb, r_fastsky, r_skyboxname;
extern cvar_t r_drawflat;
extern cvar_t r_shaderblobs;
//backend fills this in to say the max pass count
int be_maxpasses;
#define Q_stricmp stricmp
#define Q_strnicmp strnicmp
#define clamp(v,min, max) (v) = (((v)<(min))?(min):(((v)>(max))?(max):(v)));
typedef union {
float f;
unsigned int i;
} float_int_t;
qbyte FloatToByte( float x )
{
static float_int_t f2i;
// shift float to have 8bit fraction at base of number
f2i.f = x + 32768.0f;
// then read as integer and kill float bits...
return (qbyte) min(f2i.i & 0x7FFFFF, 255);
}
cvar_t r_detailtextures;
#define MAX_TOKEN_CHARS sizeof(com_token)
char *COM_ParseExt (char **data_p, qboolean nl, qboolean comma)
{
int c;
int len;
char *data;
qboolean newlines = false;
data = *data_p;
len = 0;
com_token[0] = 0;
if (!data)
{
*data_p = NULL;
return "";
}
// skip whitespace
skipwhite:
while ((c = *data) <= ' ')
{
if (c == 0)
{
*data_p = NULL;
return "";
}
if (c == '\n')
newlines = true;
data++;
}
if (newlines && !nl)
{
*data_p = data;
return com_token;
}
// skip // comments
if (c == '/' && data[1] == '/')
{
while (*data && *data != '\n')
data++;
goto skipwhite;
}
// handle quoted strings specially
if (c == '\"')
{
data++;
while (1)
{
c = *data++;
if (c=='\"' || !c)
{
com_token[len] = 0;
*data_p = data;
return com_token;
}
if (len < MAX_TOKEN_CHARS)
{
com_token[len] = c;
len++;
}
}
}
// parse a regular word
do
{
if (len < MAX_TOKEN_CHARS)
{
com_token[len] = c;
len++;
}
data++;
c = *data;
if (c == ',' && len && comma)
break;
} while (c>32);
if (len == MAX_TOKEN_CHARS)
{
Con_DPrintf ("Token exceeded %i chars, discarded.\n", (int)MAX_TOKEN_CHARS);
len = 0;
}
com_token[len] = 0;
*data_p = data;
return com_token;
}
static float Shader_FloatArgument(shader_t *shader, char *arg)
{
char *var;
int arglen = strlen(arg);
//grab an argument instead, otherwise 0
var = shader->name;
while((var = strchr(var, '#')))
{
if (!strnicmp(var, arg, arglen))
{
if (var[arglen] == '=')
return strtod(var+arglen+1, NULL);
if (var[arglen] == '#' || !var[arglen])
return 1; //present, but no value
}
var++;
}
return 0; //not present.
}
#define HASH_SIZE 128
enum shaderparsemode_e
{
SPM_DEFAULT, /*quake3/fte internal*/
SPM_DOOM3,
};
static struct
{
enum shaderparsemode_e mode;
} parsestate;
typedef struct shaderkey_s
{
char *keyword;
void (*func)( shader_t *shader, shaderpass_t *pass, char **ptr );
} shaderkey_t;
typedef struct shadercachefile_s {
char *data;
size_t length;
enum shaderparsemode_e parsemode;
struct shadercachefile_s *next;
char name[1];
} shadercachefile_t;
typedef struct shadercache_s {
shadercachefile_t *source;
size_t offset;
struct shadercache_s *hash_next;
char name[1];
} shadercache_t;
static shadercachefile_t *shaderfiles; //contents of a .shader file
static shadercache_t **shader_hash; //locations of known inactive shaders.
unsigned int r_numshaders; //number of active slots in r_shaders array.
unsigned int r_maxshaders; //max length of r_shaders array. resized if exceeded.
shader_t **r_shaders; //list of active shaders for a id->shader lookup
static hashtable_t shader_active_hash; //list of active shaders for a name->shader lookup
void *shader_active_hash_mem;
//static char r_skyboxname[MAX_QPATH];
//static float r_skyheight;
char *Shader_Skip( char *ptr );
static qboolean Shader_Parsetok(shader_t *shader, shaderpass_t *pass, shaderkey_t *keys, char *token, char **ptr);
static void Shader_ParseFunc(shader_t *shader, char **args, shaderfunc_t *func);
static void Shader_MakeCache(const char *path);
static qboolean Shader_LocateSource(char *name, char **buf, size_t *bufsize, size_t *offset, enum shaderparsemode_e *parsemode);
static void Shader_ReadShader(shader_t *s, char *shadersource, int parsemode);
static qboolean Shader_ParseShader(char *parsename, shader_t *s);
//===========================================================================
static qboolean Shader_EvaluateCondition(shader_t *shader, char **ptr)
{
char *token;
cvar_t *cv;
qboolean conditiontrue = true;
token = COM_ParseExt(ptr, false, false);
if (*token == '!')
{
conditiontrue = false;
token++;
}
if (*token == '$')
{
token++;
if (*token == '#')
conditiontrue = conditiontrue == !!Shader_FloatArgument(shader, token);
else if (!Q_stricmp(token, "lpp"))
conditiontrue = conditiontrue == r_lightprepass.ival;
else if (!Q_stricmp(token, "lightmap"))
conditiontrue = conditiontrue == !r_fullbright.value;
else if (!Q_stricmp(token, "deluxmap"))
conditiontrue = conditiontrue == r_deluxemapping.ival;
//normalmaps are generated if they're not already known.
else if (!Q_stricmp(token, "normalmap"))
conditiontrue = conditiontrue == r_loadbumpmapping;
else if (!Q_stricmp(token, "opengl"))
conditiontrue = conditiontrue == (qrenderer == QR_OPENGL);
else if (!Q_stricmp(token, "d3d9"))
conditiontrue = conditiontrue == (qrenderer == QR_DIRECT3D9);
else if (!Q_stricmp(token, "d3d11"))
conditiontrue = conditiontrue == (qrenderer == QR_DIRECT3D11);
else if (!Q_stricmp(token, "gles"))
conditiontrue = conditiontrue == ((qrenderer == QR_OPENGL) && sh_config.minver == 100);
else if (!Q_stricmp(token, "nofixed"))
conditiontrue = conditiontrue == sh_config.progs_required;
else if (!Q_stricmp(token, "glsl"))
conditiontrue = conditiontrue == ((qrenderer == QR_OPENGL) && sh_config.progs_supported);
else if (!Q_stricmp(token, "hlsl"))
conditiontrue = conditiontrue == ((qrenderer == QR_DIRECT3D9 || qrenderer == QR_DIRECT3D11) && sh_config.progs_supported);
else if (!Q_stricmp(token, "haveprogram"))
conditiontrue = conditiontrue == !!shader->prog;
else if (!Q_stricmp(token, "programs"))
conditiontrue = conditiontrue == sh_config.progs_supported;
else if (!Q_stricmp(token, "diffuse"))
conditiontrue = conditiontrue == true;
else if (!Q_stricmp(token, "specular"))
conditiontrue = conditiontrue == false;
else if (!Q_stricmp(token, "fullbright"))
conditiontrue = conditiontrue == false;
else if (!Q_stricmp(token, "topoverlay"))
conditiontrue = conditiontrue == false;
else if (!Q_stricmp(token, "loweroverlay"))
conditiontrue = conditiontrue == false;
else
{
Con_Printf("Unrecognised builtin shader condition '%s'\n", token);
conditiontrue = conditiontrue == false;
}
}
else
{
cv = Cvar_Get(token, "", 0, "Shader Conditions");
if (!cv)
{
Con_Printf("Shader_EvaluateCondition: '%s' is not a cvar\n", token);
return conditiontrue;
}
if (*token)
token = COM_ParseExt(ptr, false, false);
cv->flags |= CVAR_SHADERSYSTEM;
if (*token)
{
float rhs;
char cmp[4];
memcpy(cmp, token, 4);
token = COM_ParseExt(ptr, false, false);
rhs = atof(token);
if (!strcmp(cmp, "!="))
conditiontrue = cv->value != rhs;
else if (!strcmp(cmp, "=="))
conditiontrue = cv->value == rhs;
else if (!strcmp(cmp, "<"))
conditiontrue = cv->value < rhs;
else if (!strcmp(cmp, "<="))
conditiontrue = cv->value <= rhs;
else if (!strcmp(cmp, ">"))
conditiontrue = cv->value > rhs;
else if (!strcmp(cmp, ">="))
conditiontrue = cv->value >= rhs;
else
conditiontrue = false;
}
else
{
if (cv)
conditiontrue = conditiontrue == !!cv->value;
}
}
if (*token)
token = COM_ParseExt(ptr, false, false);
if (!strcmp(token, "&&"))
return Shader_EvaluateCondition(shader, ptr) && conditiontrue;
if (!strcmp(token, "||"))
return Shader_EvaluateCondition(shader, ptr) || conditiontrue;
return conditiontrue;
}
static char *Shader_ParseExactString(char **ptr)
{
char *token;
if (!ptr || !(*ptr))
return "";
if (!**ptr || **ptr == '}')
return "";
token = COM_ParseExt(ptr, false, false);
return token;
}
static char *Shader_ParseString(char **ptr)
{
char *token;
if (!ptr || !(*ptr))
return "";
if (!**ptr || **ptr == '}')
return "";
token = COM_ParseExt(ptr, false, true);
Q_strlwr ( token );
return token;
}
static char *Shader_ParseSensString(char **ptr)
{
char *token;
if (!ptr || !(*ptr))
return "";
if (!**ptr || **ptr == '}')
return "";
token = COM_ParseExt(ptr, false, true);
return token;
}
static float Shader_ParseFloat(shader_t *shader, char **ptr)
{
char *token;
if (!ptr || !(*ptr))
return 0;
if (!**ptr || **ptr == '}')
return 0;
token = COM_ParseExt(ptr, false, true);
if (*token == '$')
{
if (token[1] == '#')
{
return Shader_FloatArgument(shader, token+1);
}
else
{
cvar_t *var;
var = Cvar_FindVar(token+1);
if (var)
return var->value;
}
}
return atof(token);
}
static void Shader_ParseVector(shader_t *shader, char **ptr, vec3_t v)
{
char *scratch;
char *token;
qboolean bracket;
qboolean fromcvar = false;
token = Shader_ParseString(ptr);
if (*token == '$')
{
cvar_t *var;
var = Cvar_FindVar(token+1);
if (!var)
{
v[0] = 1;
v[1] = 1;
v[2] = 1;
return;
}
var->flags |= CVAR_SHADERSYSTEM;
ptr = &scratch;
scratch = var->string;
token = Shader_ParseString( ptr);
fromcvar = true;
}
if (!Q_stricmp (token, "("))
{
bracket = true;
token = Shader_ParseString(ptr);
}
else if (token[0] == '(')
{
bracket = true;
token = &token[1];
}
else
bracket = false;
v[0] = atof ( token );
token = Shader_ParseString ( ptr );
if ( !token[0] ) {
v[1] = fromcvar?v[0]:0;
} else if (bracket && token[strlen(token)-1] == ')' ) {
bracket = false;
token[strlen(token)-1] = 0;
v[1] = atof ( token );
} else {
v[1] = atof ( token );
}
token = Shader_ParseString ( ptr );
if ( !token[0] ) {
v[2] = fromcvar?v[1]:0;
} else if (bracket && token[strlen(token)-1] == ')' ) {
token[strlen(token)-1] = 0;
v[2] = atof ( token );
} else {
v[2] = atof ( token );
if ( bracket ) {
Shader_ParseString ( ptr );
}
}
if (v[0] > 5 || v[1] > 5 || v[2] > 5)
{
VectorScale(v, 1.0f/255, v);
}
}
qboolean Shader_ParseSkySides (char *shadername, char *texturename, texid_t *images)
{
qboolean allokay = true;
int i, ss, sp;
char path[MAX_QPATH];
static char *skyname_suffix[][6] = {
{"rt", "bk", "lf", "ft", "up", "dn"},
{"px", "py", "nx", "ny", "pz", "nz"},
{"posx", "posy", "negx", "negy", "posz", "negz"},
{"_px", "_py", "_nx", "_ny", "_pz", "_nz"},
{"_posx", "_posy", "_negx", "_negy", "_posz", "_negz"},
{"_rt", "_bk", "_lf", "_ft", "_up", "_dn"}
};
static char *skyname_pattern[] = {
"%s_%s",
"%s%s",
"env/%s%s",
"gfx/env/%s%s"
};
if (*texturename == '$')
{
cvar_t *v;
v = Cvar_FindVar(texturename+1);
if (v)
texturename = v->string;
}
if (!*texturename)
texturename = "-";
for ( i = 0; i < 6; i++ )
{
if ( texturename[0] == '-' )
{
images[i] = r_nulltex;
}
else
{
for (sp = 0; sp < sizeof(skyname_pattern)/sizeof(skyname_pattern[0]); sp++)
{
for (ss = 0; ss < sizeof(skyname_suffix)/sizeof(skyname_suffix[0]); ss++)
{
Q_snprintfz ( path, sizeof(path), skyname_pattern[sp], texturename, skyname_suffix[ss][i] );
images[i] = R_LoadHiResTexture ( path, NULL, IF_NOALPHA|IF_CLAMP);
if (TEXVALID(images[i]))
break;
}
if (TEXVALID(images[i]))
break;
}
if (!TEXVALID(images[i]))
{
Con_Printf("Sky \"%s\" missing texture: %s\n", shadername, path);
images[i] = missing_texture;
allokay = false;
}
}
}
return allokay;
}
static void Shader_ParseFunc (shader_t *shader, char **ptr, shaderfunc_t *func)
{
char *token;
token = Shader_ParseString (ptr);
if (!Q_stricmp (token, "sin"))
func->type = SHADER_FUNC_SIN;
else if (!Q_stricmp (token, "triangle"))
func->type = SHADER_FUNC_TRIANGLE;
else if (!Q_stricmp (token, "square"))
func->type = SHADER_FUNC_SQUARE;
else if (!Q_stricmp (token, "sawtooth"))
func->type = SHADER_FUNC_SAWTOOTH;
else if (!Q_stricmp (token, "inversesawtooth"))
func->type = SHADER_FUNC_INVERSESAWTOOTH;
else if (!Q_stricmp (token, "noise"))
func->type = SHADER_FUNC_NOISE;
func->args[0] = Shader_ParseFloat (shader, ptr);
func->args[1] = Shader_ParseFloat (shader, ptr);
func->args[2] = Shader_ParseFloat (shader, ptr);
func->args[3] = Shader_ParseFloat (shader, ptr);
}
//===========================================================================
static int Shader_SetImageFlags(shader_t *shader, shaderpass_t *pass, char **name)
{
int flags = 0;
while (name)
{
if (!Q_strnicmp(*name, "$3d:", 4))
{
*name+=4;
flags = (flags&~IF_TEXTYPE) | IF_3DMAP;
}
else if (!Q_strnicmp(*name, "$cube:", 6))
{
*name+=6;
flags = (flags&~IF_TEXTYPE) | IF_CUBEMAP;
}
else if (!Q_strnicmp(*name, "$nearest:", 9))
{
*name+=9;
flags|= IF_NEAREST;
pass->flags |= SHADER_PASS_NEAREST;
}
else
name = NULL;
}
// if (shader->flags & SHADER_SKY)
// flags |= IF_SKY;
if (shader->flags & SHADER_NOMIPMAPS)
flags |= IF_NOMIPMAP;
if (shader->flags & SHADER_NOPICMIP)
flags |= IF_NOPICMIP;
return flags;
}
static texid_t Shader_FindImage ( char *name, int flags )
{
if (parsestate.mode == SPM_DOOM3)
{
if (!Q_stricmp (name, "_default"))
return r_whiteimage; /*fixme*/
if (!Q_stricmp (name, "_white"))
return r_whiteimage;
if (!Q_stricmp (name, "_black"))
{
int wibuf[16] = {0};
return R_LoadTexture("$blackimage", 4, 4, TF_RGBA32, wibuf, IF_NOMIPMAP|IF_NOPICMIP|IF_NEAREST|IF_NOGAMMA);
}
}
else
{
if (!Q_stricmp (name, "$whiteimage"))
return r_whiteimage;
}
return R_LoadHiResTexture(name, NULL, flags);
}
/****************** shader keyword functions ************************/
static void Shader_Cull ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
char *token;
shader->flags &= ~(SHADER_CULL_FRONT|SHADER_CULL_BACK);
token = Shader_ParseString ( ptr );
if ( !Q_stricmp (token, "disable") || !Q_stricmp (token, "none") || !Q_stricmp (token, "twosided") ) {
} else if ( !Q_stricmp (token, "front") ) {
shader->flags |= SHADER_CULL_FRONT;
} else if ( !Q_stricmp (token, "back") || !Q_stricmp (token, "backside") || !Q_stricmp (token, "backsided") ) {
shader->flags |= SHADER_CULL_BACK;
} else {
shader->flags |= SHADER_CULL_FRONT;
}
}
static void Shader_NoMipMaps ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
shader->flags |= (SHADER_NOMIPMAPS|SHADER_NOPICMIP);
}
static void Shader_NoPicMip ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
shader->flags |= SHADER_NOPICMIP;
}
static void Shader_DeformVertexes ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
char *token;
deformv_t *deformv;
if ( shader->numdeforms >= SHADER_DEFORM_MAX )
return;
deformv = &shader->deforms[shader->numdeforms];
token = Shader_ParseString ( ptr );
if ( !Q_stricmp (token, "wave") )
{
deformv->type = DEFORMV_WAVE;
deformv->args[0] = Shader_ParseFloat (shader, ptr);
if (deformv->args[0])
deformv->args[0] = 1.0f / deformv->args[0];
Shader_ParseFunc (shader, ptr, &deformv->func );
}
else if ( !Q_stricmp (token, "normal") )
{
deformv->type = DEFORMV_NORMAL;
deformv->args[0] = Shader_ParseFloat (shader, ptr );
deformv->args[1] = Shader_ParseFloat (shader, ptr );
}
else if ( !Q_stricmp (token, "bulge") )
{
deformv->type = DEFORMV_BULGE;
Shader_ParseVector (shader, ptr, deformv->args );
shader->flags |= SHADER_DEFORMV_BULGE;
}
else if ( !Q_stricmp (token, "move") )
{
deformv->type = DEFORMV_MOVE;
Shader_ParseVector (shader, ptr, deformv->args );
Shader_ParseFunc (shader, ptr, &deformv->func );
}
else if ( !Q_stricmp (token, "autosprite") )
{
deformv->type = DEFORMV_AUTOSPRITE;
shader->flags |= SHADER_AUTOSPRITE;
}
else if ( !Q_stricmp (token, "autosprite2") )
{
deformv->type = DEFORMV_AUTOSPRITE2;
shader->flags |= SHADER_AUTOSPRITE;
}
else if ( !Q_stricmp (token, "projectionShadow") )
deformv->type = DEFORMV_PROJECTION_SHADOW;
else
return;
shader->numdeforms++;
}
static void Shader_SkyParms(shader_t *shader, shaderpass_t *pass, char **ptr)
{
skydome_t *skydome;
float skyheight;
char *boxname;
if (shader->skydome)
{
Z_Free(shader->skydome);
}
skydome = (skydome_t *)Z_Malloc(sizeof(skydome_t));
shader->skydome = skydome;
boxname = Shader_ParseString(ptr);
Shader_ParseSkySides(shader->name, boxname, skydome->farbox_textures);
skyheight = Shader_ParseFloat(shader, ptr);
if (!skyheight)
{
skyheight = 512.0f;
}
boxname = Shader_ParseString(ptr);
Shader_ParseSkySides(shader->name, boxname, skydome->nearbox_textures);
shader->flags |= SHADER_SKY;
shader->sort = SHADER_SORT_SKY;
}
static void Shader_FogParms ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
float div;
vec3_t color, fcolor;
// if ( !r_ignorehwgamma->value )
// div = 1.0f / pow(2, max(0, floor(r_overbrightbits->value)));
// else
div = 1.0f;
Shader_ParseVector (shader, ptr, color );
VectorScale ( color, div, color );
ColorNormalize ( color, fcolor );
shader->fog_color[0] = FloatToByte ( fcolor[0] );
shader->fog_color[1] = FloatToByte ( fcolor[1] );
shader->fog_color[2] = FloatToByte ( fcolor[2] );
shader->fog_color[3] = 255;
shader->fog_dist = Shader_ParseFloat (shader, ptr );
if ( shader->fog_dist <= 0.0f ) {
shader->fog_dist = 128.0f;
}
shader->fog_dist = 1.0f / shader->fog_dist;
shader->flags |= SHADER_NODLIGHT|SHADER_NOSHADOWS;
}
static void Shader_SurfaceParm ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
char *token;
token = Shader_ParseString ( ptr );
if ( !Q_stricmp( token, "nodraw" ) )
shader->flags |= SHADER_NODRAW;
else if ( !Q_stricmp( token, "nodlight" ) )
shader->flags |= SHADER_NODLIGHT;
}
static void Shader_Sort ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
char *token;
token = Shader_ParseString ( ptr );
if ( !Q_stricmp( token, "portal" ) )
shader->sort = SHADER_SORT_PORTAL;
else if( !Q_stricmp( token, "sky" ) )
shader->sort = SHADER_SORT_SKY;
else if( !Q_stricmp( token, "opaque" ) )
shader->sort = SHADER_SORT_OPAQUE;
else if( !Q_stricmp( token, "decal" ) )
shader->sort = SHADER_SORT_DECAL;
else if( !Q_stricmp( token, "seethrough" ) )
shader->sort = SHADER_SORT_SEETHROUGH;
else if( !Q_stricmp( token, "banner" ) )
shader->sort = SHADER_SORT_BANNER;
else if( !Q_stricmp( token, "additive" ) )
shader->sort = SHADER_SORT_ADDITIVE;
else if( !Q_stricmp( token, "underwater" ) )
shader->sort = SHADER_SORT_UNDERWATER;
else if( !Q_stricmp( token, "nearest" ) )
shader->sort = SHADER_SORT_NEAREST;
else if( !Q_stricmp( token, "blend" ) )
shader->sort = SHADER_SORT_BLEND;
else if ( !Q_stricmp( token, "lpp_light" ) )
shader->sort = SHADER_SORT_PRELIGHT;
else if ( !Q_stricmp( token, "ripple" ) )
shader->sort = SHADER_SORT_RIPPLE;
else
{
shader->sort = atoi ( token );
clamp ( shader->sort, SHADER_SORT_NONE, SHADER_SORT_NEAREST );
}
}
static void Shader_Prelight ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
shader->sort = SHADER_SORT_PRELIGHT;
}
static void Shader_Portal ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
shader->sort = SHADER_SORT_PORTAL;
}
static void Shader_PolygonOffset ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
/*the q3 defaults*/
shader->polyoffset.factor = -0.05;
shader->polyoffset.unit = -25;
}
static void Shader_EntityMergable ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
shader->flags |= SHADER_ENTITY_MERGABLE;
}
static void Shader_ProgAutoFields(program_t *prog, char **cvarnames, int *cvartypes);
/*program text is already loaded, this function parses the 'header' of it to see which permutations it provides, and how many times we need to recompile it*/
static qboolean Shader_LoadPermutations(char *name, program_t *prog, char *script, int qrtype, int ver, char *blobfilename)
{
static char *permutationname[] =
{
"#define BUMP\n",
"#define FULLBRIGHT\n",
"#define UPPERLOWER\n",
"#define DELUXE\n",
"#define SKELETAL\n",
"#define FOG\n",
"#define FRAMEBLEND\n",
"#define LIGHTSTYLED\n",
NULL
};
#define MAXMODIFIERS 64
char *permutationdefines[sizeof(permutationname)/sizeof(permutationname[0]) + MAXMODIFIERS + 1];
unsigned int nopermutation = ~0u;
int nummodifiers = 0;
int p, n, pn;
char *end;
vfsfile_t *blobfile;
unsigned int permuoffsets[PERMUTATIONS], initoffset=0;
unsigned int blobheaderoffset=0;
qboolean blobadded;
qboolean tess = false;
char *cvarnames[64];
int cvartypes[64];
int cvarcount = 0;
qboolean onefailed = false;
extern cvar_t gl_specular;
if (qrenderer != qrtype)
{
return false;
}
cvarnames[cvarcount] = NULL;
prog->nofixedcompat = true;
for(;;)
{
while (*script == ' ' || *script == '\r' || *script == '\n' || *script == '\t')
script++;
if (!strncmp(script, "!!fixed", 7))
{
prog->nofixedcompat = false;
script += 7;
while (*script && *script != '\n')
script++;
}
else if (!strncmp(script, "!!tess", 6))
{
tess = true;
script += 6;
while (*script && *script != '\n')
script++;
}
else if (!strncmp(script, "!!cvardf", 8))
{
script += 8;
while (*script == ' ' || *script == '\t')
script++;
end = script;
while ((*end >= 'A' && *end <= 'Z') || (*end >= 'a' && *end <= 'z') || (*end >= '0' && *end <= '9') || *end == '_')
end++;
if (nummodifiers < MAXMODIFIERS && end - script < 64)
{
cvar_t *var;
char namebuf[64];
memcpy(namebuf, script, end - script);
namebuf[end - script] = 0;
var = Cvar_Get(namebuf, "0", CVAR_SHADERSYSTEM, "GLSL Variables");
if (var)
permutationdefines[nummodifiers++] = Z_StrDup(va("#define %s %g\n", namebuf, var->value));
}
script = end;
}
else if (!strncmp(script, "!!cvarf", 7))
{
script += 7;
while (*script == ' ' || *script == '\t')
script++;
end = script;
while ((*end >= 'A' && *end <= 'Z') || (*end >= 'a' && *end <= 'z') || (*end >= '0' && *end <= '9') || *end == '_')
end++;
if (cvarcount+1 != sizeof(cvarnames)/sizeof(cvarnames[0]))
{
cvartypes[cvarcount] = SP_CVARF;
cvarnames[cvarcount++] = script;
cvarnames[cvarcount] = NULL;
}
script = end;
}
else if (!strncmp(script, "!!cvari", 7))
{
script += 7;
while (*script == ' ' || *script == '\t')
script++;
end = script;
while ((*end >= 'A' && *end <= 'Z') || (*end >= 'a' && *end <= 'z') || (*end >= '0' && *end <= '9') || *end == '_')
end++;
if (cvarcount+1 != sizeof(cvarnames)/sizeof(cvarnames[0]))
{
cvartypes[cvarcount] = SP_CVARI;
cvarnames[cvarcount++] = script;
cvarnames[cvarcount] = NULL;
}
script = end;
}
else if (!strncmp(script, "!!cvarv", 7))
{
script += 7;
while (*script == ' ' || *script == '\t')
script++;
end = script;
while ((*end >= 'A' && *end <= 'Z') || (*end >= 'a' && *end <= 'z') || (*end >= '0' && *end <= '9') || *end == '_')
end++;
if (cvarcount+1 != sizeof(cvarnames)/sizeof(cvarnames[0]))
{
cvartypes[cvarcount] = SP_CVAR3F;
cvarnames[cvarcount++] = script;
cvarnames[cvarcount] = NULL;
}
script = end;
}
else if (!strncmp(script, "!!permu", 7))
{
script += 7;
while (*script == ' ' || *script == '\t')
script++;
end = script;
while ((*end >= 'A' && *end <= 'Z') || (*end >= 'a' && *end <= 'z') || (*end >= '0' && *end <= '9') || *end == '_')
end++;
for (p = 0; permutationname[p]; p++)
{
if (!strncmp(permutationname[p]+8, script, end - script) && permutationname[p][8+end-script] == '\n')
{
nopermutation &= ~(1u<<p);
break;
}
}
if (!permutationname[p])
Con_DPrintf("Unknown pemutation in glsl program %s\n", name);
script = end;
}
else if (!strncmp(script, "!!ver", 5))
{
script += 5;
while (*script == ' ' || *script == '\t')
script++;
end = script;
while ((*end >= 'A' && *end <= 'Z') || (*end >= 'a' && *end <= 'z') || (*end >= '0' && *end <= '9') || *end == '_')
end++;
ver = strtol(script, NULL, 0);
script = end;
}
else
break;
};
if (sh_config.pLoadBlob && blobfilename && *blobfilename)
blobfile = FS_OpenVFS(blobfilename, "w+b", FS_GAMEONLY);
else
blobfile = NULL;
if (blobfile)
{
unsigned int magic;
unsigned int corrupt = false;
char ver[MAX_QPATH];
char *thisver = version_string();
corrupt |= VFS_READ(blobfile, &magic, sizeof(magic)) != sizeof(magic);
corrupt |= magic != *(unsigned int*)"FBLB";
corrupt |= VFS_READ(blobfile, &blobheaderoffset, sizeof(blobheaderoffset)) != sizeof(blobheaderoffset);
corrupt |= VFS_READ(blobfile, ver, sizeof(ver)) != sizeof(ver);
corrupt |= strcmp(ver, thisver);
//if the magic or header didn't read properly then the file is corrupt
if (corrupt)
{
//close and reopen it without the + flag, to replace it with a new file.
VFS_CLOSE(blobfile);
blobfile = FS_OpenVFS(blobfilename, "wb", FS_GAMEONLY);
if (blobfile)
{
VFS_SEEK(blobfile, 0);
magic = *(unsigned int*)"FBLB"; //magic
VFS_WRITE(blobfile, &magic, sizeof(magic));
memset(ver, 0, sizeof(ver)); //make sure we don't leak stuff.
Q_strncpyz(ver, thisver, sizeof(ver));
VFS_WRITE(blobfile, ver, sizeof(ver));
blobheaderoffset = 0;
}
}
}
blobadded = false;
if (gl_specular.value)
{
if (nummodifiers < MAXMODIFIERS)
permutationdefines[nummodifiers++] = Z_StrDup("#define SPECULAR\n");
}
for (end = strchr(name, '#'); end && *end; )
{
char *start = end+1;
end = strchr(start, '#');
if (!end)
end = start + strlen(start);
if (nummodifiers < MAXMODIFIERS)
{
permutationdefines[nummodifiers] = BZ_Malloc(10 + end - start);
memcpy(permutationdefines[nummodifiers], "#define ", 8);
memcpy(permutationdefines[nummodifiers]+8, start, end - start);
memcpy(permutationdefines[nummodifiers]+8+(end-start), "\n", 2);
start = strchr(permutationdefines[nummodifiers]+8, '=');
if (start)
*start = ' ';
for (start = permutationdefines[nummodifiers]+8; *start; start++)
*start = toupper(*start);
nummodifiers++;
permutationdefines[nummodifiers] = NULL;
}
}
if (blobfile)
{
unsigned int next;
unsigned int argsz;
char *args, *mp, *mv;
int ml, mi;
unsigned int bloblink = 4;
//walk through looking for an argset match
while (blobheaderoffset)
{
VFS_SEEK(blobfile, blobheaderoffset);
VFS_READ(blobfile, &next, sizeof(next));
VFS_READ(blobfile, &argsz, sizeof(argsz));
args = Z_Malloc(argsz+1);
VFS_READ(blobfile, args, argsz);
args[argsz] = 0;
for (mi = 0, mp = args; mi < nummodifiers; mi++)
{
mv = permutationdefines[mi]+8;
ml = strlen(mv);
if (mp+ml > args+argsz)
break;
if (strncmp(mp, mv, ml))
break;
mp += ml;
}
//this one is a match.
if (mi == nummodifiers && mp == args+argsz)
{
blobheaderoffset = VFS_TELL(blobfile);
VFS_READ(blobfile, permuoffsets, sizeof(permuoffsets));
break;
}
bloblink = blobheaderoffset;
blobheaderoffset = next;
}
//these arguments have never been seen before. add a new argset.
if (!blobheaderoffset)
{
unsigned int link = 0;
initoffset = VFS_GETLEN(blobfile);
VFS_SEEK(blobfile, initoffset);
VFS_WRITE(blobfile, &link, sizeof(link));
for (mi = 0, argsz = 0; mi < nummodifiers; mi++)
{
mv = permutationdefines[mi]+8;
ml = strlen(mv);
argsz += ml;
}
VFS_WRITE(blobfile, &argsz, sizeof(argsz));
for (mi = 0; mi < nummodifiers; mi++)
{
mv = permutationdefines[mi]+8;
ml = strlen(mv);
VFS_WRITE(blobfile, mv, ml);
}
//and the offsets come here
blobheaderoffset = VFS_TELL(blobfile);
memset(permuoffsets, 0, sizeof(permuoffsets));
VFS_WRITE(blobfile, permuoffsets, sizeof(permuoffsets));
//now rewrite the link to add us. the value in the file should always be set to 0.
VFS_SEEK(blobfile, bloblink);
VFS_WRITE(blobfile, &initoffset, sizeof(initoffset));
}
}
for (p = 0; p < PERMUTATIONS; p++)
{
memset(&prog->permu[p].handle, 0, sizeof(prog->permu[p].handle));
if (nopermutation & p)
{
continue;
}
pn = nummodifiers;
for (n = 0; permutationname[n]; n++)
{
if (p & (1u<<n))
permutationdefines[pn++] = permutationname[n];
}
if (p & PERMUTATION_UPPERLOWER)
permutationdefines[pn++] = "#define UPPER\n#define LOWER\n";
if (p & PERMUTATION_BUMPMAP)
{
if (r_glsl_offsetmapping.ival)
{
permutationdefines[pn++] = "#define OFFSETMAPPING\n";
if (r_glsl_offsetmapping_reliefmapping.ival && (p & PERMUTATION_BUMPMAP))
permutationdefines[pn++] = "#define RELIEFMAPPING\n";
}
}
permutationdefines[pn++] = NULL;
if (blobfile && permuoffsets[p])
{
VFS_SEEK(blobfile, permuoffsets[p]);
if (sh_config.pLoadBlob(prog, name, p, blobfile))
continue; //blob was loaded from disk, yay.
//otherwise fall through.
}
if (blobfile)
{
initoffset = VFS_GETLEN(blobfile);
VFS_SEEK(blobfile, initoffset);
}
if (!sh_config.pCreateProgram(prog, name, p, permutationdefines, script, tess?script:NULL, tess?script:NULL, script, (p & PERMUTATION_SKELETAL)?true:onefailed, blobfile))
{
if (!(p & PERMUTATION_SKELETAL))
onefailed = true; //don't flag it if skeletal failed.
if (!p) //give up if permutation 0 failed. that one failing is fatal.
break;
}
if (blobfile && initoffset != VFS_GETLEN(blobfile))
{
permuoffsets[p] = initoffset;
blobadded = true;
}
}
while(nummodifiers)
Z_Free(permutationdefines[--nummodifiers]);
if (sh_config.pProgAutoFields)
sh_config.pProgAutoFields(prog, cvarnames, cvartypes);
if (blobfile && blobadded)
{
VFS_SEEK(blobfile, blobheaderoffset);
VFS_WRITE(blobfile, permuoffsets, sizeof(permuoffsets));
}
if (blobfile)
VFS_CLOSE(blobfile);
if (p == PERMUTATIONS)
return true;
return false;
}
typedef struct sgeneric_s
{
program_t prog;
struct sgeneric_s *next;
char *name;
qboolean failed;
} sgeneric_t;
static sgeneric_t *sgenerics;
struct sbuiltin_s
{
int qrtype;
int apiver;
char name[MAX_QPATH];
char *body;
} sbuiltins[] =
{
#include "r_bishaders.h"
{QR_NONE}
};
void Shader_UnloadProg(program_t *prog)
{
if (sh_config.pDeleteProg)
{
int p;
for (p = 0; p < PERMUTATIONS; p++)
sh_config.pDeleteProg(prog, p);
}
free(prog);
}
static void Shader_FlushGenerics(void)
{
sgeneric_t *g;
while (sgenerics)
{
g = sgenerics;
sgenerics = g->next;
if (g->prog.refs == 1)
{
g->prog.refs--;
Shader_UnloadProg(&g->prog);
}
else
Con_Printf("generic shader still used\n");
}
}
static void Shader_LoadGeneric(sgeneric_t *g, int qrtype)
{
unsigned int i;
void *file;
char basicname[MAX_QPATH];
char blobname[MAX_QPATH];
char *h;
g->failed = true;
basicname[1] = 0;
Q_strncpyz(basicname, g->name, sizeof(basicname));
h = strchr(basicname+1, '#');
if (h)
*h = '\0';
if (strchr(basicname, '/') || strchr(basicname, '.'))
{
FS_LoadFile(basicname, &file);
*blobname = 0;
}
else
{
if (sh_config.progpath)
FS_LoadFile(va(sh_config.progpath, basicname), &file);
else
file = NULL;
if (sh_config.blobpath && r_shaderblobs.ival)
Q_snprintfz(blobname, sizeof(blobname), sh_config.blobpath, basicname);
else
*blobname = 0;
}
if (file)
{
Con_DPrintf("Loaded %s from disk\n", basicname);
g->failed = !Shader_LoadPermutations(g->name, &g->prog, file, qrtype, 0, blobname);
FS_FreeFile(file);
return;
}
else
{
int ver;
for (i = 0; *sbuiltins[i].name; i++)
{
if (sbuiltins[i].qrtype == qrenderer && !strcmp(sbuiltins[i].name, basicname))
{
ver = sbuiltins[i].apiver;
if (ver < sh_config.minver || ver > sh_config.maxver)
continue;
g->failed = !Shader_LoadPermutations(g->name, &g->prog, sbuiltins[i].body, sbuiltins[i].qrtype, ver, blobname);
if (g->failed)
continue;
return;
}
}
}
}
static void Shader_ReloadGenerics(void)
{
sgeneric_t *g;
for (g = sgenerics; g; g = g->next)
{
Shader_LoadGeneric(g, qrenderer);
}
}
static program_t *Shader_FindGeneric(char *name, int qrtype)
{
sgeneric_t *g;
for (g = sgenerics; g; g = g->next)
{
if (!strcmp(name, g->name))
{
if (g->failed)
return NULL;
g->prog.refs++;
return &g->prog;
}
}
//don't even try if we know it won't work.
if (!sh_config.progs_supported)
return NULL;
g = malloc(sizeof(*g) + strlen(name)+1);
memset(g, 0, sizeof(*g));
g->name = (char*)(g+1);
strcpy(g->name, name);
g->next = sgenerics;
sgenerics = g;
g->prog.refs = 1;
Shader_LoadGeneric(g, qrtype);
if (g->failed)
return NULL;
g->prog.refs++;
return &g->prog;
}
void Shader_WriteOutGenerics_f(void)
{
int i;
char *name;
for (i = 0; *sbuiltins[i].name; i++)
{
name = NULL;
if (sbuiltins[i].qrtype == QR_OPENGL)
{
if (sbuiltins[i].apiver == 100)
name = va("gles/eg_%s.glsl", sbuiltins[i].name);
else
name = va("glsl/eg_%s.glsl", sbuiltins[i].name);
}
else if (sbuiltins[i].qrtype == QR_DIRECT3D9)
name = va("hlsl/eg_%s.hlsl", sbuiltins[i].name);
else if (sbuiltins[i].qrtype == QR_DIRECT3D11)
name = va("hlsl11/eg_%s.hlsl", sbuiltins[i].name);
if (name)
{
vfsfile_t *f = FS_OpenVFS(name, "rb", FS_GAMEONLY);
if (f)
{
int len = VFS_GETLEN(f);
char *buf = Hunk_TempAlloc(len);
VFS_READ(f, buf, len);
if (len != strlen(sbuiltins[i].body) || memcmp(buf, sbuiltins[i].body, len))
Con_Printf("Not writing %s - modified version in the way\n", name);
else
Con_Printf("%s is unmodified\n", name);
VFS_CLOSE(f);
}
else
{
Con_Printf("Writing %s\n", name);
FS_WriteFile(name, sbuiltins[i].body, strlen(sbuiltins[i].body), FS_GAMEONLY);
}
}
}
}
struct shader_field_names_s shader_attr_names[] =
{
/*vertex attributes*/
{"v_position1", VATTR_VERTEX1},
{"v_position2", VATTR_VERTEX2},
{"v_colour", VATTR_COLOUR},
{"v_texcoord", VATTR_TEXCOORD},
{"v_lmcoord", VATTR_LMCOORD},
{"v_normal", VATTR_NORMALS},
{"v_svector", VATTR_SNORMALS},
{"v_tvector", VATTR_TNORMALS},
{"v_bone", VATTR_BONENUMS},
{"v_weight", VATTR_BONEWEIGHTS},
#if MAXRLIGHTMAPS > 1
{"v_lmcoord1", VATTR_LMCOORD},
{"v_lmcoord2", VATTR_LMCOORD2},
{"v_lmcoord3", VATTR_LMCOORD3},
{"v_lmcoord4", VATTR_LMCOORD4},
{"v_colour1", VATTR_COLOUR},
{"v_colour2", VATTR_COLOUR2},
{"v_colour3", VATTR_COLOUR3},
{"v_colour4", VATTR_COLOUR4},
#endif
{NULL}
};
struct shader_field_names_s shader_unif_names[] =
{
/*matricies*/
{"m_model", SP_M_MODEL},
{"m_view", SP_M_VIEW},
{"m_modelview", SP_M_MODELVIEW},
{"m_projection", SP_M_PROJECTION},
{"m_modelviewprojection", SP_M_MODELVIEWPROJECTION},
{"m_bones", SP_M_ENTBONES},
{"m_invviewprojection", SP_M_INVVIEWPROJECTION},
{"m_invmodelviewprojection",SP_M_INVMODELVIEWPROJECTION},
/*viewer properties*/
{"v_eyepos", SP_V_EYEPOS},
{"w_fog", SP_W_FOG},
/*ent properties*/
{"e_vblend", SP_E_VBLEND},
{"e_lmscale", SP_E_LMSCALE}, /*overbright shifting*/
{"e_origin", SP_E_ORIGIN},
{"e_time", SP_E_TIME},
{"e_eyepos", SP_E_EYEPOS},
{"e_colour", SP_E_COLOURS},
{"e_colourident", SP_E_COLOURSIDENT},
{"e_glowmod", SP_E_GLOWMOD},
{"e_uppercolour", SP_E_TOPCOLOURS},
{"e_lowercolour", SP_E_BOTTOMCOLOURS},
{"e_light_dir", SP_E_L_DIR},
{"e_light_mul", SP_E_L_MUL},
{"e_light_ambient", SP_E_L_AMBIENT},
/*rtlight properties, use with caution*/
{"l_lightscreen", SP_LIGHTSCREEN},
{"l_lightradius", SP_LIGHTRADIUS},
{"l_lightcolour", SP_LIGHTCOLOUR},
{"l_lightposition", SP_LIGHTPOSITION},
{"l_lightcolourscale", SP_LIGHTCOLOURSCALE},
{"l_cubematrix", SP_LIGHTCUBEMATRIX},
{"l_shadowmapproj", SP_LIGHTSHADOWMAPPROJ},
{"l_shadowmapscale", SP_LIGHTSHADOWMAPSCALE},
{"e_rendertexturescale", SP_RENDERTEXTURESCALE},
{NULL}
};
static char *Shader_ParseBody(char *debugname, char **ptr)
{
char *body;
char *start, *end;
end = *ptr;
while (*end == ' ' || *end == '\t' || *end == '\r')
end++;
if (*end == '\n')
{
int count;
end++;
while (*end == ' ' || *end == '\t')
end++;
if (*end != '{')
{
Con_Printf("shader \"%s\" missing program string\n", debugname);
}
else
{
end++;
start = end;
for (count = 1; *end; end++)
{
if (*end == '}')
{
count--;
if (!count)
break;
}
else if (*end == '{')
count++;
}
body = BZ_Malloc(end - start + 1);
memcpy(body, start, end-start);
body[end-start] = 0;
*ptr = end+1;/*skip over it all*/
return body;
}
}
return NULL;
}
static void Shader_SLProgramName (shader_t *shader, shaderpass_t *pass, char **ptr, int qrtype)
{
/*accepts:
program
{
BLAH
}
where BLAH is both vertex+frag with #ifdefs
or
program fname
on one line.
*/
char *programbody;
char *hash;
programbody = Shader_ParseBody(shader->name, ptr);
if (programbody)
{
shader->prog = malloc(sizeof(*shader->prog));
memset(shader->prog, 0, sizeof(*shader->prog));
shader->prog->refs = 1;
if (!Shader_LoadPermutations(shader->name, shader->prog, programbody, qrtype, 0, NULL))
{
free(shader->prog);
shader->prog = NULL;
}
BZ_Free(programbody);
return;
}
hash = strchr(shader->name, '#');
if (hash)
{
//pass the # postfixes from the shader name onto the generic glsl to use
char newname[512];
Q_snprintfz(newname, sizeof(newname), "%s%s", Shader_ParseExactString(ptr), hash);
shader->prog = Shader_FindGeneric(newname, qrtype);
}
else
shader->prog = Shader_FindGeneric(Shader_ParseExactString(ptr), qrtype);
}
static void Shader_GLSLProgramName (shader_t *shader, shaderpass_t *pass, char **ptr)
{
Shader_SLProgramName(shader,pass,ptr,QR_OPENGL);
}
static void Shader_ProgramName (shader_t *shader, shaderpass_t *pass, char **ptr)
{
Shader_SLProgramName(shader,pass,ptr,qrenderer);
}
static void Shader_HLSL9ProgramName (shader_t *shader, shaderpass_t *pass, char **ptr)
{
Shader_SLProgramName(shader,pass,ptr,QR_DIRECT3D9);
}
static void Shader_HLSL11ProgramName (shader_t *shader, shaderpass_t *pass, char **ptr)
{
Shader_SLProgramName(shader,pass,ptr,QR_DIRECT3D11);
}
static void Shader_ProgramParam ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
cvar_t *cv = NULL;
int specialint = 0;
float specialfloat = 0;
vec3_t specialvec = {0};
enum shaderprogparmtype_e parmtype = SP_BAD;
char *token;
qboolean silent = false;
char *forcename = NULL;
token = Shader_ParseString(ptr);
if (!Q_stricmp(token, "opt"))
{
silent = true;
token = Shader_ParseString(ptr);
}
if (!Q_stricmp(token, "texture"))
{
token = Shader_ParseString(ptr);
specialint = atoi(token);
parmtype = SP_TEXTURE;
}
else if (!Q_stricmp(token, "consti"))
{
token = Shader_ParseSensString(ptr);
specialint = atoi(token);
parmtype = SP_CONSTI;
}
else if (!Q_stricmp(token, "constf"))
{
token = Shader_ParseSensString(ptr);
specialfloat = atof(token);
parmtype = SP_CONSTF;
}
else if (!Q_stricmp(token, "cvari"))
{
token = Shader_ParseSensString(ptr);
cv = Cvar_Get(token, "", 0, "GLSL Shader parameters");
if (!cv)
return;
parmtype = SP_CVARI;
}
else if (!Q_stricmp(token, "cvarf"))
{
token = Shader_ParseSensString(ptr);
cv = Cvar_Get(token, "", 0, "GLSL Shader parameters");
if (!cv)
return;
parmtype = SP_CVARF;
}
else if (!Q_stricmp(token, "cvar3f"))
{
token = Shader_ParseSensString(ptr);
cv = Cvar_Get(token, "", 0, "GLSL Shader parameters");
if (!cv)
return;
parmtype = SP_CVAR3F;
}
else if (!Q_stricmp(token, "time"))
parmtype = SP_E_TIME;
else if (!Q_stricmp(token, "eyepos"))
parmtype = SP_E_EYEPOS;
else if (!Q_stricmp(token, "entmatrix"))
parmtype = SP_M_MODEL;
else if (!Q_stricmp(token, "colours") || !Q_stricmp(token, "colors"))
parmtype = SP_E_COLOURS;
else if (!Q_stricmp(token, "upper"))
parmtype = SP_E_TOPCOLOURS;
else if (!Q_stricmp(token, "lower"))
parmtype = SP_E_BOTTOMCOLOURS;
else if (!Q_stricmp(token, "lightradius"))
parmtype = SP_LIGHTRADIUS;
else if (!Q_stricmp(token, "lightcolour"))
parmtype = SP_LIGHTCOLOUR;
else if (!Q_stricmp(token, "lightpos"))
parmtype = SP_LIGHTPOSITION;
else if (!Q_stricmp(token, "rendertexturescale"))
parmtype = SP_RENDERTEXTURESCALE;
else
Con_Printf("shader %s: parameter type \"%s\" not known\n", shader->name, token);
if (forcename)
token = forcename;
else
token = Shader_ParseSensString(ptr);
#ifdef GLQUAKE
if (qrenderer == QR_OPENGL)
{
int p;
qboolean foundone;
unsigned int uniformloc;
program_t *prog = shader->prog;
if (!prog)
{
Con_Printf("shader %s: param without program set\n", shader->name);
}
else if (prog->numparams == SHADER_PROGPARMS_MAX)
Con_Printf("shader %s: too many parms\n", shader->name);
else
{
if (prog->refs != 1)
Con_Printf("shader %s: parms on shared shader\n", shader->name);
foundone = false;
prog->parm[prog->numparams].type = parmtype;
for (p = 0; p < PERMUTATIONS; p++)
{
if (!prog->permu[p].handle.glsl)
continue;
GLSlang_UseProgram(prog->permu[p].handle.glsl);
uniformloc = qglGetUniformLocationARB(prog->permu[p].handle.glsl, token);
prog->permu[p].parm[prog->numparams] = uniformloc;
if (uniformloc != -1)
{
foundone = true;
switch(parmtype)
{
case SP_BAD:
foundone = false;
break;
case SP_TEXTURE:
case SP_CONSTI:
prog->parm[prog->numparams].ival = specialint;
break;
case SP_CONSTF:
prog->parm[prog->numparams].fval = specialfloat;
break;
case SP_CVARF:
case SP_CVARI:
prog->parm[prog->numparams].pval = cv;
break;
case SP_CVAR3F:
prog->parm[prog->numparams].pval = cv;
qglUniform3fvARB(uniformloc, 1, specialvec);
break;
default:
break;
}
}
}
if (!foundone)
{
if (!silent)
Con_Printf("shader %s: param \"%s\" not found\n", shader->name, token);
}
else
prog->numparams++;
GLSlang_UseProgram(0);
}
}
#endif
}
static void Shader_DiffuseMap(shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
token = Shader_ParseString(ptr);
shader->defaulttextures.base = R_LoadHiResTexture(token, NULL, 0);
}
static void Shader_Translucent(shader_t *shader, shaderpass_t *pass, char **ptr)
{
shader->flags |= SHADER_BLEND;
}
static void Shader_DP_Camera(shader_t *shader, shaderpass_t *pass, char **ptr)
{
shader->sort = SHADER_SORT_PORTAL;
}
static void Shader_BEMode(shader_t *shader, shaderpass_t *pass, char **ptr)
{
int mode;
char tokencopy[1024];
char *token;
char *embed = NULL;
token = Shader_ParseString(ptr);
if (!Q_stricmp(token, "rtlight"))
mode = -1; //all light types
else if (!Q_stricmp(token, "rtlight_only"))
mode = LSHADER_STANDARD;
else if (!Q_stricmp(token, "rtlight_smap"))
mode = LSHADER_SMAP;
else if (!Q_stricmp(token, "rtlight_spot"))
mode = LSHADER_SPOT;
else if (!Q_stricmp(token, "rtlight_cube"))
mode = LSHADER_CUBE;
else if (!Q_stricmp(token, "rtlight_cube_smap"))
mode = LSHADER_CUBE|LSHADER_SMAP;
else if (!Q_stricmp(token, "rtlight_cube_spot")) //doesn't make sense.
mode = LSHADER_CUBE|LSHADER_SPOT;
else if (!Q_stricmp(token, "rtlight_spot_smap"))
mode = LSHADER_SMAP|LSHADER_SPOT;
else if (!Q_stricmp(token, "rtlight_cube_spot_smap")) //doesn't make sense.
mode = LSHADER_CUBE|LSHADER_SPOT|LSHADER_SMAP;
else if (!Q_stricmp(token, "crepuscular"))
mode = bemoverride_crepuscular;
else if (!Q_stricmp(token, "depthonly"))
mode = bemoverride_depthonly;
else if (!Q_stricmp(token, "depthdark"))
mode = bemoverride_depthdark;
else if (!Q_stricmp(token, "prelight"))
mode = bemoverride_prelight;
else if (!Q_stricmp(token, "fog"))
mode = bemoverride_fog;
else
{
Con_DPrintf(CON_WARNING "Shader %s specifies unknown bemode %s.\n", shader->name, token);
return; //not supported.
}
embed = Shader_ParseBody(shader->name, ptr);
if (embed)
{
int l = strlen(embed) + 6;
char *b = BZ_Malloc(l);
Q_snprintfz(b, l, "{\n%s\n}\n", embed);
BZ_Free(embed);
embed = b;
//generate a unique name
Q_snprintfz(tokencopy, sizeof(tokencopy), "%s_mode%i", shader->name, mode);
}
else
{
token = Shader_ParseString(ptr);
Q_strncpyz(tokencopy, token, sizeof(tokencopy)); //make sure things don't go squiff.
}
if (mode == -1)
{
//shorthand for rtlights
for (mode = 0; mode < LSHADER_MODES; mode++)
{
if ((mode & LSHADER_CUBE) && (mode & LSHADER_SPOT))
continue;
shader->bemoverrides[mode] = R_RegisterCustom(va("%s%s%s%s",
tokencopy,
(mode & LSHADER_SMAP)?"#PCF":"",
(mode & LSHADER_SPOT)?"#SPOT":"",
(mode & LSHADER_CUBE)?"#CUBE":"")
, shader->usageflags, embed?Shader_DefaultScript:NULL, embed);
}
}
else
{
shader->bemoverrides[mode] = R_RegisterCustom(tokencopy, shader->usageflags, embed?Shader_DefaultScript:NULL, embed);
}
if (embed)
BZ_Free(embed);
}
static shaderkey_t shaderkeys[] =
{
{"cull", Shader_Cull},
{"skyparms", Shader_SkyParms},
{"fogparms", Shader_FogParms},
{"surfaceparm", Shader_SurfaceParm},
{"nomipmaps", Shader_NoMipMaps},
{"nopicmip", Shader_NoPicMip},
{"polygonoffset", Shader_PolygonOffset},
{"sort", Shader_Sort},
{"deformvertexes", Shader_DeformVertexes},
{"portal", Shader_Portal},
{"entitymergable", Shader_EntityMergable},
//fte extensions
{"lpp_light", Shader_Prelight},
{"glslprogram", Shader_GLSLProgramName},
{"program", Shader_ProgramName}, //gl or d3d
{"hlslprogram", Shader_HLSL9ProgramName}, //for d3d
{"hlsl11program", Shader_HLSL11ProgramName}, //for d3d
{"param", Shader_ProgramParam}, //legacy
{"bemode", Shader_BEMode},
//dp compat
{"dp_camera", Shader_DP_Camera},
/*doom3 compat*/
{"diffusemap", Shader_DiffuseMap}, //macro for "{\nstage diffusemap\nmap <map>\n}"
{"bumpmap", NULL}, //macro for "{\nstage bumpmap\nmap <map>\n}"
{"specularmap", NULL}, //macro for "{\nstage specularmap\nmap <map>\n}"
{"discrete", NULL},
{"nonsolid", NULL},
{"noimpact", NULL},
{"translucent", Shader_Translucent},
{"noshadows", NULL},
{"nooverlays", NULL},
{"nofragment", NULL},
{NULL, NULL}
};
static struct
{
char *name;
char *body;
} shadermacros[] =
{
{"decal_macro", "polygonOffset 1\ndiscrete\nsort decal\nnoShadows"},
// {"diffusemap", "{\nblend diffusemap\nmap %1\n}"},
// {"bumpmap", "{\nblend bumpmap\nmap %1\n}"},
// {"specularmap", "{\nblend specularmap\nmap %1\n}"},
{NULL}
};
// ===============================================================
static qboolean Shaderpass_MapGen (shader_t *shader, shaderpass_t *pass, char *tname)
{
if (!Q_stricmp (tname, "$lightmap"))
{
pass->tcgen = TC_GEN_LIGHTMAP;
pass->flags |= SHADER_PASS_LIGHTMAP | SHADER_PASS_NOMIPMAP;
pass->texgen = T_GEN_LIGHTMAP;
shader->flags |= SHADER_HASLIGHTMAP;
}
else if (!Q_stricmp (tname, "$deluxmap"))
{
pass->tcgen = TC_GEN_LIGHTMAP;
pass->flags |= SHADER_PASS_DELUXMAP | SHADER_PASS_NOMIPMAP;
pass->texgen = T_GEN_DELUXMAP;
}
else if (!Q_stricmp (tname, "$diffuse"))
{
pass->texgen = T_GEN_DIFFUSE;
pass->tcgen = TC_GEN_BASE;
shader->flags |= SHADER_NOIMAGE;
}
else if (!Q_stricmp (tname, "$normalmap"))
{
pass->texgen = T_GEN_NORMALMAP;
pass->tcgen = TC_GEN_BASE;
shader->flags |= SHADER_HASNORMALMAP;
}
else if (!Q_stricmp (tname, "$specular"))
{
pass->texgen = T_GEN_SPECULAR;
pass->tcgen = TC_GEN_BASE;
shader->flags |= SHADER_HASGLOSS;
}
else if (!Q_stricmp (tname, "$fullbright"))
{
pass->texgen = T_GEN_FULLBRIGHT;
pass->tcgen = TC_GEN_BASE;
}
else if (!Q_stricmp (tname, "$upperoverlay"))
{
shader->flags |= SHADER_HASTOPBOTTOM;
pass->texgen = T_GEN_UPPEROVERLAY;
pass->tcgen = TC_GEN_BASE;
}
else if (!Q_stricmp (tname, "$loweroverlay"))
{
shader->flags |= SHADER_HASTOPBOTTOM;
pass->texgen = T_GEN_LOWEROVERLAY;
pass->tcgen = TC_GEN_BASE;
}
else if (!Q_stricmp (tname, "$shadowmap"))
{
pass->texgen = T_GEN_SHADOWMAP;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
pass->flags |= SHADER_PASS_DEPTHCMP;
}
else if (!Q_stricmp (tname, "$lightcubemap"))
{
pass->texgen = T_GEN_LIGHTCUBEMAP;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$currentrender"))
{
pass->texgen = T_GEN_CURRENTRENDER;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$sourcecolour"))
{
pass->texgen = T_GEN_SOURCECOLOUR;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$sourcecube"))
{
pass->texgen = T_GEN_SOURCECUBE;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$sourcedepth"))
{
pass->texgen = T_GEN_SOURCEDEPTH;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$reflection"))
{
shader->flags |= SHADER_HASREFLECT;
pass->texgen = T_GEN_REFLECTION;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$refraction"))
{
shader->flags |= SHADER_HASREFRACT;
pass->texgen = T_GEN_REFRACTION;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$refractiondepth"))
{
shader->flags |= SHADER_HASREFRACT;
pass->texgen = T_GEN_REFRACTIONDEPTH;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else if (!Q_stricmp (tname, "$ripplemap"))
{
shader->flags |= SHADER_HASRIPPLEMAP;
pass->texgen = T_GEN_RIPPLEMAP;
pass->tcgen = TC_GEN_BASE; //FIXME: moo!
}
else
return false;
return true;
}
static void Shaderpass_Map (shader_t *shader, shaderpass_t *pass, char **ptr)
{
int flags;
char *token;
pass->anim_frames[0] = r_nulltex;
token = Shader_ParseString (ptr);
flags = Shader_SetImageFlags (shader, pass, &token);
if (!Shaderpass_MapGen(shader, pass, token))
{
switch((flags & IF_TEXTYPE) >> IF_TEXTYPESHIFT)
{
case 0:
pass->texgen = T_GEN_SINGLEMAP;
break;
case 1:
pass->texgen = T_GEN_3DMAP;
break;
default:
pass->texgen = T_GEN_CUBEMAP;
break;
}
pass->tcgen = TC_GEN_BASE;
pass->anim_frames[0] = Shader_FindImage (token, flags);
}
}
static void Shaderpass_AnimMap (shader_t *shader, shaderpass_t *pass, char **ptr)
{
int flags;
char *token;
texid_t image;
flags = Shader_SetImageFlags (shader, pass, NULL);
pass->tcgen = TC_GEN_BASE;
pass->flags |= SHADER_PASS_ANIMMAP;
pass->texgen = T_GEN_ANIMMAP;
pass->anim_fps = (int)Shader_ParseFloat (shader, ptr);
pass->anim_numframes = 0;
for ( ; ; )
{
token = Shader_ParseString(ptr);
if (!token[0])
{
break;
}
if (pass->anim_numframes < SHADER_MAX_ANIMFRAMES)
{
image = Shader_FindImage (token, flags);
if (!TEXVALID(image))
{
pass->anim_frames[pass->anim_numframes++] = missing_texture;
Con_DPrintf (CON_WARNING "Shader %s has an animmap with no image: %s.\n", shader->name, token );
}
else
{
pass->anim_frames[pass->anim_numframes++] = image;
}
}
}
}
static void Shaderpass_ClampMap (shader_t *shader, shaderpass_t *pass, char **ptr)
{
int flags;
char *token;
token = Shader_ParseString (ptr);
flags = Shader_SetImageFlags (shader, pass, &token);
if (!Shaderpass_MapGen(shader, pass, token))
{
pass->tcgen = TC_GEN_BASE;
pass->anim_frames[0] = Shader_FindImage (token, flags | IF_CLAMP);
switch((flags & IF_TEXTYPE) >> IF_TEXTYPESHIFT)
{
case 0:
pass->texgen = T_GEN_SINGLEMAP;
break;
case 1:
pass->texgen = T_GEN_3DMAP;
break;
default:
pass->texgen = T_GEN_CUBEMAP;
break;
}
if (!TEXVALID(pass->anim_frames[0]))
{
if (flags & (IF_3DMAP | IF_CUBEMAP))
pass->anim_frames[0] = r_nulltex;
else
pass->anim_frames[0] = missing_texture;
Con_DPrintf (CON_WARNING "Shader %s has a stage with no image: %s.\n", shader->name, token);
}
}
pass->flags |= SHADER_PASS_CLAMP;
}
static void Shaderpass_VideoMap (shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
token = Shader_ParseSensString (ptr);
#ifdef NOMEDIA
#else
if (pass->cin)
Z_Free (pass->cin);
pass->cin = Media_StartCin(token);
if (!pass->cin)
pass->cin = Media_StartCin(va("video/%s.roq", token));
if (!pass->cin)
Con_DPrintf (CON_WARNING "(shader %s) Couldn't load video %s\n", shader->name, token);
if (pass->cin)
{
pass->flags |= SHADER_PASS_VIDEOMAP;
shader->flags |= SHADER_VIDEOMAP;
pass->texgen = T_GEN_VIDEOMAP;
}
else
{
pass->texgen = T_GEN_DIFFUSE;
pass->rgbgen = RGB_GEN_CONST;
pass->rgbgen_func.type = SHADER_FUNC_CONSTANT;
pass->rgbgen_func.args[0] = pass->rgbgen_func.args[1] = pass->rgbgen_func.args[2] = 0;
}
#endif
}
static void Shaderpass_RGBGen (shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
token = Shader_ParseString (ptr);
if (!Q_stricmp (token, "identitylighting"))
pass->rgbgen = RGB_GEN_IDENTITY_LIGHTING;
else if (!Q_stricmp (token, "identity"))
pass->rgbgen = RGB_GEN_IDENTITY;
else if (!Q_stricmp (token, "wave"))
{
pass->rgbgen = RGB_GEN_WAVE;
Shader_ParseFunc (shader, ptr, &pass->rgbgen_func);
}
else if (!Q_stricmp(token, "entity"))
pass->rgbgen = RGB_GEN_ENTITY;
else if (!Q_stricmp (token, "oneMinusEntity"))
pass->rgbgen = RGB_GEN_ONE_MINUS_ENTITY;
else if (!Q_stricmp (token, "vertex"))
pass->rgbgen = RGB_GEN_VERTEX_LIGHTING;
else if (!Q_stricmp (token, "oneMinusVertex"))
pass->rgbgen = RGB_GEN_ONE_MINUS_VERTEX;
else if (!Q_stricmp (token, "lightingDiffuse"))
pass->rgbgen = RGB_GEN_LIGHTING_DIFFUSE;
else if (!Q_stricmp (token, "exactvertex"))
pass->rgbgen = RGB_GEN_VERTEX_EXACT;
else if (!Q_stricmp (token, "const") || !Q_stricmp (token, "constant"))
{
pass->rgbgen = RGB_GEN_CONST;
pass->rgbgen_func.type = SHADER_FUNC_CONSTANT;
Shader_ParseVector (shader, ptr, pass->rgbgen_func.args);
}
else if (!Q_stricmp (token, "topcolor"))
pass->rgbgen = RGB_GEN_TOPCOLOR;
else if (!Q_stricmp (token, "bottomcolor"))
pass->rgbgen = RGB_GEN_BOTTOMCOLOR;
}
static void Shaderpass_AlphaGen (shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
token = Shader_ParseString(ptr);
if (!Q_stricmp (token, "portal"))
{
pass->alphagen = ALPHA_GEN_PORTAL;
shader->portaldist = Shader_ParseFloat(shader, ptr);
if (!shader->portaldist)
shader->portaldist = 256;
shader->flags |= SHADER_AGEN_PORTAL;
}
else if (!Q_stricmp (token, "vertex"))
{
pass->alphagen = ALPHA_GEN_VERTEX;
}
else if (!Q_stricmp (token, "entity"))
{
pass->alphagen = ALPHA_GEN_ENTITY;
}
else if (!Q_stricmp (token, "wave"))
{
pass->alphagen = ALPHA_GEN_WAVE;
Shader_ParseFunc (shader, ptr, &pass->alphagen_func);
}
else if ( !Q_stricmp (token, "lightingspecular"))
{
pass->alphagen = ALPHA_GEN_SPECULAR;
}
else if ( !Q_stricmp (token, "const") || !Q_stricmp (token, "constant"))
{
pass->alphagen = ALPHA_GEN_CONST;
pass->alphagen_func.type = SHADER_FUNC_CONSTANT;
pass->alphagen_func.args[0] = fabs(Shader_ParseFloat(shader, ptr));
}
}
static void Shaderpass_AlphaShift (shader_t *shader, shaderpass_t *pass, char **ptr) //for alienarena
{
float speed;
float min, max;
pass->alphagen = ALPHA_GEN_WAVE;
pass->alphagen_func.type = SHADER_FUNC_SIN;
//arg0 = add
//arg1 = scale
//arg2 = timeshift
//arg3 = timescale
speed = Shader_ParseFloat(shader, ptr);
min = Shader_ParseFloat(shader, ptr);
max = Shader_ParseFloat(shader, ptr);
pass->alphagen_func.args[0] = min + (max - min)/2;
pass->alphagen_func.args[1] = (max - min)/2;
pass->alphagen_func.args[2] = 0;
pass->alphagen_func.args[3] = 1/speed;
}
static int Shader_BlendFactor(char *name, qboolean dstnotsrc)
{
int factor;
if (!strnicmp(name, "gl_", 3))
name += 3;
if (!Q_stricmp(name, "zero"))
factor = SBITS_SRCBLEND_ZERO;
else if ( !Q_stricmp(name, "one"))
factor = SBITS_SRCBLEND_ONE;
else if (!Q_stricmp(name, "dst_color"))
factor = SBITS_SRCBLEND_DST_COLOR;
else if (!Q_stricmp(name, "one_minus_src_alpha"))
factor = SBITS_SRCBLEND_ONE_MINUS_SRC_ALPHA;
else if (!Q_stricmp(name, "src_alpha"))
factor = SBITS_SRCBLEND_SRC_ALPHA;
else if (!Q_stricmp(name, "src_color"))
factor = SBITS_SRCBLEND_SRC_COLOR_INVALID;
else if (!Q_stricmp(name, "one_minus_dst_color"))
factor = SBITS_SRCBLEND_ONE_MINUS_DST_COLOR;
else if (!Q_stricmp(name, "one_minus_src_color"))
factor = SBITS_SRCBLEND_ONE_MINUS_SRC_COLOR_INVALID;
else if (!Q_stricmp(name, "dst_alpha") )
factor = SBITS_SRCBLEND_DST_ALPHA;
else if (!Q_stricmp(name, "one_minus_dst_alpha"))
factor = SBITS_SRCBLEND_ONE_MINUS_DST_ALPHA;
else
factor = SBITS_SRCBLEND_NONE;
if (dstnotsrc)
{
//dest factors are shifted
factor <<= 4;
/*gl doesn't accept dst_color for destinations*/
if (factor == SBITS_DSTBLEND_NONE ||
factor == SBITS_DSTBLEND_DST_COLOR_INVALID ||
factor == SBITS_DSTBLEND_ONE_MINUS_DST_COLOR_INVALID ||
factor == SBITS_DSTBLEND_ALPHA_SATURATE_INVALID)
{
Con_DPrintf("Invalid shader dst blend \"%s\"\n", name);
factor = SBITS_DSTBLEND_ONE;
}
}
else
{
/*gl doesn't accept src_color for sources*/
if (factor == SBITS_SRCBLEND_NONE ||
factor == SBITS_SRCBLEND_SRC_COLOR_INVALID ||
factor == SBITS_SRCBLEND_ONE_MINUS_SRC_COLOR_INVALID)
{
Con_DPrintf("Unrecognised shader src blend \"%s\"\n", name);
factor = SBITS_SRCBLEND_ONE;
}
}
return factor;
}
static void Shaderpass_BlendFunc (shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
//reset to defaults
pass->shaderbits &= ~(SBITS_BLEND_BITS);
pass->stagetype = ST_AMBIENT;
token = Shader_ParseString (ptr);
if ( !Q_stricmp (token, "bumpmap")) //doom3 is awkward...
pass->stagetype = ST_BUMPMAP;
else if ( !Q_stricmp (token, "specularmap")) //doom3 is awkward...
pass->stagetype = ST_SPECULARMAP;
else if ( !Q_stricmp (token, "diffusemap")) //doom3 is awkward...
pass->stagetype = ST_DIFFUSEMAP;
else if ( !Q_stricmp (token, "blend"))
pass->shaderbits |= SBITS_SRCBLEND_SRC_ALPHA | SBITS_DSTBLEND_ONE_MINUS_SRC_ALPHA;
else if (!Q_stricmp (token, "filter"))
pass->shaderbits |= SBITS_SRCBLEND_DST_COLOR | SBITS_DSTBLEND_ZERO;
else if (!Q_stricmp (token, "add"))
pass->shaderbits |= SBITS_SRCBLEND_ONE | SBITS_DSTBLEND_ONE;
else if (!Q_stricmp (token, "replace"))
pass->shaderbits |= SBITS_SRCBLEND_NONE | SBITS_DSTBLEND_NONE;
else
{
pass->shaderbits |= Shader_BlendFactor(token, false);
token = Shader_ParseString (ptr);
if (*token == ',')
token = Shader_ParseString (ptr);
pass->shaderbits |= Shader_BlendFactor(token, true);
}
}
static void Shaderpass_AlphaFunc (shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
pass->shaderbits &= ~SBITS_ATEST_BITS;
token = Shader_ParseString (ptr);
if (!Q_stricmp (token, "gt0"))
{
pass->shaderbits = SBITS_ATEST_GT0;
}
else if (!Q_stricmp (token, "lt128"))
{
pass->shaderbits = SBITS_ATEST_LT128;
}
else if (!Q_stricmp (token, "ge128"))
{
pass->shaderbits = SBITS_ATEST_GE128;
}
}
static void Shaderpass_DepthFunc (shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token;
token = Shader_ParseString (ptr);
if (!Q_stricmp (token, "equal"))
pass->shaderbits |= SBITS_MISC_DEPTHEQUALONLY;
else if (!Q_stricmp (token, "lequal"))
pass->shaderbits &= ~SBITS_MISC_DEPTHEQUALONLY;
else
Con_DPrintf("Invalid depth func %s\n", token);
}
static void Shaderpass_DepthWrite (shader_t *shader, shaderpass_t *pass, char **ptr)
{
shader->flags |= SHADER_DEPTHWRITE;
pass->shaderbits |= SBITS_MISC_DEPTHWRITE;
}
static void Shaderpass_NoDepthTest (shader_t *shader, shaderpass_t *pass, char **ptr)
{
shader->flags |= SHADER_DEPTHWRITE;
pass->shaderbits |= SBITS_MISC_NODEPTHTEST;
}
static void Shaderpass_NoDepth (shader_t *shader, shaderpass_t *pass, char **ptr)
{
shader->flags |= SHADER_DEPTHWRITE;
}
static void Shaderpass_TcMod (shader_t *shader, shaderpass_t *pass, char **ptr)
{
int i;
tcmod_t *tcmod;
char *token;
if (pass->numtcmods >= SHADER_MAX_TC_MODS)
{
return;
}
tcmod = &pass->tcmods[pass->numtcmods];
token = Shader_ParseString (ptr);
if (!Q_stricmp (token, "rotate"))
{
tcmod->args[0] = -Shader_ParseFloat(shader, ptr) / 360.0f;
if (!tcmod->args[0])
{
return;
}
tcmod->type = SHADER_TCMOD_ROTATE;
}
else if ( !Q_stricmp (token, "scale") )
{
tcmod->args[0] = Shader_ParseFloat (shader, ptr);
tcmod->args[1] = Shader_ParseFloat (shader, ptr);
tcmod->type = SHADER_TCMOD_SCALE;
}
else if ( !Q_stricmp (token, "scroll") )
{
tcmod->args[0] = Shader_ParseFloat (shader, ptr);
tcmod->args[1] = Shader_ParseFloat (shader, ptr);
tcmod->type = SHADER_TCMOD_SCROLL;
}
else if (!Q_stricmp(token, "stretch"))
{
shaderfunc_t func;
Shader_ParseFunc(shader, ptr, &func);
tcmod->args[0] = func.type;
for (i = 1; i < 5; ++i)
tcmod->args[i] = func.args[i-1];
tcmod->type = SHADER_TCMOD_STRETCH;
}
else if (!Q_stricmp (token, "transform"))
{
for (i = 0; i < 6; ++i)
tcmod->args[i] = Shader_ParseFloat (shader, ptr);
tcmod->type = SHADER_TCMOD_TRANSFORM;
}
else if (!Q_stricmp (token, "turb"))
{
for (i = 0; i < 4; i++)
tcmod->args[i] = Shader_ParseFloat (shader, ptr);
tcmod->type = SHADER_TCMOD_TURB;
}
else
{
return;
}
pass->numtcmods++;
}
static void Shaderpass_Scale ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
//seperate x and y
char *token;
tcmod_t *tcmod;
tcmod = &pass->tcmods[pass->numtcmods];
tcmod->type = SHADER_TCMOD_SCALE;
token = Shader_ParseString (ptr);
if (!strcmp(token, "static"))
{
tcmod->args[0] = Shader_ParseFloat (shader, ptr);
}
else
{
tcmod->args[0] = atof(token);
}
while (**ptr == ' ' || **ptr == '\t')
*ptr+=1;
if (**ptr == ',')
*ptr+=1;
token = Shader_ParseString (ptr);
if (!strcmp(token, "static"))
{
tcmod->args[1] = Shader_ParseFloat (shader, ptr);
}
else
{
tcmod->args[1] = atof(token);
}
pass->numtcmods++;
}
static void Shaderpass_Scroll (shader_t *shader, shaderpass_t *pass, char **ptr)
{
//seperate x and y
char *token;
tcmod_t *tcmod;
tcmod = &pass->tcmods[pass->numtcmods];
token = Shader_ParseString ( ptr );
if (!strcmp(token, "static"))
{
tcmod->type = SHADER_TCMOD_SCROLL;
tcmod->args[0] = Shader_ParseFloat (shader, ptr );
}
else
{
Con_Printf("Bad shader scale\n");
return;
}
token = Shader_ParseString ( ptr );
if (!strcmp(token, "static"))
{
tcmod->type = SHADER_TCMOD_SCROLL;
tcmod->args[1] = Shader_ParseFloat (shader, ptr );
}
else
{
Con_Printf("Bad shader scale\n");
return;
}
pass->numtcmods++;
}
static void Shaderpass_TcGen ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
char *token;
token = Shader_ParseString ( ptr );
if ( !Q_stricmp (token, "base") ) {
pass->tcgen = TC_GEN_BASE;
} else if ( !Q_stricmp (token, "lightmap") ) {
pass->tcgen = TC_GEN_LIGHTMAP;
} else if ( !Q_stricmp (token, "environment") ) {
pass->tcgen = TC_GEN_ENVIRONMENT;
} else if ( !Q_stricmp (token, "vector") ) {
pass->tcgen = TC_GEN_BASE;
} else if ( !Q_stricmp (token, "normal") ) {
pass->tcgen = TC_GEN_NORMAL;
} else if ( !Q_stricmp (token, "svector") ) {
pass->tcgen = TC_GEN_SVECTOR;
} else if ( !Q_stricmp (token, "tvector") ) {
pass->tcgen = TC_GEN_TVECTOR;
}
}
static void Shaderpass_EnvMap ( shader_t *shader, shaderpass_t *pass, char **ptr ) //for alienarena
{
pass->tcgen = TC_GEN_ENVIRONMENT;
}
static void Shaderpass_Detail ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
pass->flags |= SHADER_PASS_DETAIL;
}
static void Shaderpass_AlphaMask ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
pass->shaderbits &= ~SBITS_ATEST_BITS;
pass->shaderbits |= SBITS_ATEST_GE128;
}
static void Shaderpass_NoLightMap ( shader_t *shader, shaderpass_t *pass, char **ptr )
{
pass->rgbgen = RGB_GEN_IDENTITY;
}
static void Shaderpass_Red(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->rgbgen = RGB_GEN_CONST;
pass->rgbgen_func.args[0] = Shader_ParseFloat(shader, ptr);
}
static void Shaderpass_Green(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->rgbgen = RGB_GEN_CONST;
pass->rgbgen_func.args[1] = Shader_ParseFloat(shader, ptr);
}
static void Shaderpass_Blue(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->rgbgen = RGB_GEN_CONST;
pass->rgbgen_func.args[2] = Shader_ParseFloat(shader, ptr);
}
static void Shaderpass_Alpha(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->alphagen = ALPHA_GEN_CONST;
pass->alphagen_func.args[0] = Shader_ParseFloat(shader, ptr);
}
static void Shaderpass_MaskColor(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->shaderbits |= SBITS_MASK_RED|SBITS_MASK_GREEN|SBITS_MASK_BLUE;
}
static void Shaderpass_MaskRed(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->shaderbits |= SBITS_MASK_RED;
}
static void Shaderpass_MaskGreen(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->shaderbits |= SBITS_MASK_GREEN;
}
static void Shaderpass_MaskBlue(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->shaderbits |= SBITS_MASK_BLUE;
}
static void Shaderpass_MaskAlpha(shader_t *shader, shaderpass_t *pass, char **ptr)
{
pass->shaderbits |= SBITS_MASK_ALPHA;
}
static void Shaderpass_AlphaTest(shader_t *shader, shaderpass_t *pass, char **ptr)
{
if (Shader_ParseFloat(shader, ptr) == 0.5)
pass->shaderbits |= SBITS_ATEST_GE128;
else
Con_Printf("unsupported alphatest value\n");
}
static void Shaderpass_TexGen(shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token = Shader_ParseString(ptr);
if (!strcmp(token, "normal"))
pass->tcgen = TC_GEN_NORMAL;
else if (!strcmp(token, "skybox"))
pass->tcgen = TC_GEN_SKYBOX;
else if (!strcmp(token, "wobblesky"))
{
pass->tcgen = TC_GEN_WOBBLESKY;
token = Shader_ParseString(ptr);
token = Shader_ParseString(ptr);
token = Shader_ParseString(ptr);
}
else if (!strcmp(token, "reflect"))
pass->tcgen = TC_GEN_REFLECT;
else
{
Con_Printf("texgen token not understood\n");
}
}
static void Shaderpass_CubeMap(shader_t *shader, shaderpass_t *pass, char **ptr)
{
char *token = Shader_ParseString(ptr);
if (pass->tcgen == TC_GEN_BASE)
pass->tcgen = TC_GEN_SKYBOX;
pass->texgen = T_GEN_CUBEMAP;
pass->anim_frames[0] = Shader_FindImage(token, IF_CUBEMAP);
if (!TEXVALID(pass->anim_frames[0]))
{
pass->texgen = T_GEN_SINGLEMAP;
pass->anim_frames[0] = missing_texture;
}
}
static shaderkey_t shaderpasskeys[] =
{
{"rgbgen", Shaderpass_RGBGen },
{"blendfunc", Shaderpass_BlendFunc },
{"depthfunc", Shaderpass_DepthFunc },
{"depthwrite", Shaderpass_DepthWrite },
{"nodepthtest", Shaderpass_NoDepthTest },
{"nodepth", Shaderpass_NoDepth },
{"alphafunc", Shaderpass_AlphaFunc },
{"tcmod", Shaderpass_TcMod },
{"map", Shaderpass_Map },
{"animmap", Shaderpass_AnimMap },
{"clampmap", Shaderpass_ClampMap },
{"videomap", Shaderpass_VideoMap },
{"tcgen", Shaderpass_TcGen },
{"envmap", Shaderpass_EnvMap },//for alienarena
{"nolightmap", Shaderpass_NoLightMap },//for alienarena
{"scale", Shaderpass_Scale },//for alienarena
{"scroll", Shaderpass_Scroll },//for alienarena
{"alphagen", Shaderpass_AlphaGen },
{"alphashift", Shaderpass_AlphaShift },//for alienarena
{"alphamask", Shaderpass_AlphaMask },//for alienarena
{"detail", Shaderpass_Detail },
/*doom3 compat*/
{"blend", Shaderpass_BlendFunc},
{"maskcolor", Shaderpass_MaskColor},
{"maskred", Shaderpass_MaskRed},
{"maskgreen", Shaderpass_MaskGreen},
{"maskblue", Shaderpass_MaskBlue},
{"maskalpha", Shaderpass_MaskAlpha},
{"alphatest", Shaderpass_AlphaTest},
{"texgen", Shaderpass_TexGen},
{"cubemap", Shaderpass_CubeMap}, //one of these is wrong
{"cameracubemap",Shaderpass_CubeMap}, //one of these is wrong
{"red", Shaderpass_Red},
{"green", Shaderpass_Green},
{"blue", Shaderpass_Blue},
{"alpha", Shaderpass_Alpha},
{NULL, NULL}
};
// ===============================================================
void Shader_FreePass (shaderpass_t *pass)
{
#ifndef NOMEDIA
if ( pass->flags & SHADER_PASS_VIDEOMAP )
{
Media_ShutdownCin(pass->cin);
pass->cin = NULL;
}
#endif
}
void Shader_Free (shader_t *shader)
{
int i;
shaderpass_t *pass;
if (shader->bucket.data == shader)
Hash_RemoveData(&shader_active_hash, shader->name, shader);
shader->bucket.data = NULL;
if (shader->prog)
{
if (shader->prog->refs-- == 1)
Shader_UnloadProg(shader->prog);
}
shader->prog = NULL;
if (shader->skydome)
{
Z_Free (shader->skydome);
}
pass = shader->passes;
for (i = 0; i < shader->numpasses; i++, pass++)
{
Shader_FreePass (pass);
}
shader->numpasses = 0;
if (shader->genargs)
{
free(shader->genargs);
shader->genargs = NULL;
}
shader->uses = 0;
memset(&shader->defaulttextures, 0, sizeof(shader->defaulttextures));
}
int QDECL Shader_InitCallback (const char *name, qofs_t size, void *param, searchpathfuncs_t *spath)
{
Shader_MakeCache(name);
return true;
}
qboolean Shader_Init (void)
{
int wibuf[16];
if (!r_shaders)
{
r_numshaders = 0;
r_maxshaders = 256;
r_shaders = calloc(r_maxshaders, sizeof(*r_shaders));
shader_hash = calloc (HASH_SIZE, sizeof(*shader_hash));
shader_active_hash_mem = malloc(Hash_BytesForBuckets(1024));
memset(shader_active_hash_mem, 0, Hash_BytesForBuckets(1024));
Hash_InitTable(&shader_active_hash, 1024, shader_active_hash_mem);
Shader_FlushGenerics();
}
Shader_NeedReload(true);
Shader_DoReload();
memset(wibuf, 0xff, sizeof(wibuf));
if (!qrenderer)
r_whiteimage = r_nulltex;
else
r_whiteimage = R_LoadTexture("$whiteimage", 4, 4, TF_RGBA32, wibuf, IF_NOMIPMAP|IF_NOPICMIP|IF_NEAREST|IF_NOGAMMA);
return true;
}
void Shader_FlushCache(void)
{
shadercachefile_t *sf;
shadercache_t *cache, *cache_next;
int i;
for (i = 0; i < HASH_SIZE; i++)
{
cache = shader_hash[i];
for (; cache; cache = cache_next)
{
cache_next = cache->hash_next;
cache->hash_next = NULL;
Z_Free(cache);
}
}
while(shaderfiles)
{
sf = shaderfiles;
shaderfiles = sf->next;
if (sf->data)
FS_FreeFile(sf->data);
Z_Free(sf);
}
}
static void Shader_MakeCache(const char *path)
{
unsigned int key;
char *buf, *ptr, *token;
shadercache_t *cache;
shadercachefile_t *cachefile, *filelink = NULL;
qofs_t size;
for (cachefile = shaderfiles; cachefile; cachefile = cachefile->next)
{
if (!Q_stricmp(cachefile->name, path))
return; //already loaded. there's no source package or anything.
filelink = cachefile;
}
Con_DPrintf ("...loading '%s'\n", path);
cachefile = Z_Malloc(sizeof(*cachefile) + strlen(path));
strcpy(cachefile->name, path);
size = FS_LoadFile(path, (void **)&cachefile->data);
cachefile->length = size;
if (filelink)
filelink->next = cachefile;
else
shaderfiles = cachefile;
if (qofs_Error(size))
{
Con_Printf("Unable to read %s\n", path);
cachefile->length = 0;
return;
}
if (size > 1024*1024*64) //sanity limit
{
Con_Printf("Refusing to parse %s due to size\n", path);
cachefile->length = 0;
FS_FreeFile(cachefile->data);
cachefile->data = NULL;
return;
}
ptr = buf = cachefile->data;
size = cachefile->length;
do
{
if ( ptr - buf >= size )
break;
token = COM_ParseExt (&ptr, true, true);
if ( !token[0] || ptr - buf >= size )
break;
COM_CleanUpPath(token);
if (Shader_LocateSource(token, NULL, NULL, NULL, NULL))
{
ptr = Shader_Skip ( ptr );
continue;
}
key = Hash_Key ( token, HASH_SIZE );
cache = ( shadercache_t * )Z_Malloc(sizeof(shadercache_t) + strlen(token));
strcpy(cache->name, token);
cache->hash_next = shader_hash[key];
cache->source = cachefile;
cache->offset = ptr - cachefile->data;
shader_hash[key] = cache;
ptr = Shader_Skip ( ptr );
} while ( ptr );
}
static qboolean Shader_LocateSource(char *name, char **buf, size_t *bufsize, size_t *offset, enum shaderparsemode_e *parsemode)
{
unsigned int key;
shadercache_t *cache;
key = Hash_Key ( name, HASH_SIZE );
cache = shader_hash[key];
for ( ; cache; cache = cache->hash_next )
{
if ( !Q_stricmp (cache->name, name) )
{
if (buf)
{
*buf = cache->source->data;
*bufsize = cache->source->length;
*offset = cache->offset;
*parsemode = cache->source->parsemode;
}
return true;
}
}
return false;
}
char *Shader_Skip ( char *ptr )
{
char *tok;
int brace_count;
// Opening brace
tok = COM_ParseExt(&ptr, true, true);
if (!ptr)
return NULL;
if ( tok[0] != '{' )
{
tok = COM_ParseExt (&ptr, true, true);
}
for (brace_count = 1; brace_count > 0 ; ptr++)
{
tok = COM_ParseExt (&ptr, true, true);
if ( !tok[0] )
return NULL;
if (tok[0] == '{')
{
brace_count++;
} else if (tok[0] == '}')
{
brace_count--;
}
}
return ptr;
}
void Shader_Reset(shader_t *s)
{
char name[MAX_QPATH];
int id = s->id;
int uses = s->uses;
shader_gen_t *defaultgen = s->generator;
char *genargs = s->genargs;
texnums_t dt = s->defaulttextures;
int w = s->width;
int h = s->height;
unsigned int uf = s->usageflags;
Q_strncpyz(name, s->name, sizeof(name));
s->genargs = NULL;
Shader_Free(s);
memset(s, 0, sizeof(*s));
s->remapto = s;
s->id = id;
s->width = w;
s->height = h;
s->defaulttextures = dt;
s->generator = defaultgen;
s->genargs = genargs;
s->usageflags = uf;
s->uses = uses;
Q_strncpyz(s->name, name, sizeof(s->name));
Hash_Add(&shader_active_hash, s->name, s, &s->bucket);
}
void Shader_Shutdown (void)
{
int i;
shader_t *shader;
if (!r_shaders)
return; /*nothing needs freeing yet*/
for (i = 0; i < r_numshaders; i++)
{
shader = r_shaders[i];
if (!shader || !shader->uses)
continue;
Shader_Free(shader);
Z_Free(r_shaders[i]);
r_shaders[i] = NULL;
}
Shader_FlushCache();
Shader_FlushGenerics();
r_maxshaders = 0;
r_numshaders = 0;
free(r_shaders);
r_shaders = NULL;
free(shader_hash);
shader_hash = NULL;
free(shader_active_hash_mem);
shader_active_hash_mem = NULL;
shader_reload_needed = false;
}
void Shader_SetBlendmode (shaderpass_t *pass)
{
if (pass->texgen == T_GEN_DELUXMAP)
{
pass->blendmode = PBM_DOTPRODUCT;
return;
}
if (pass->texgen < T_GEN_DIFFUSE && !TEXVALID(pass->anim_frames[0]) && !(pass->flags & SHADER_PASS_LIGHTMAP))
{
pass->blendmode = PBM_MODULATE;
return;
}
if (!(pass->shaderbits & SBITS_BLEND_BITS))
{
if ((pass->rgbgen == RGB_GEN_IDENTITY) && (pass->alphagen == ALPHA_GEN_IDENTITY))
{
pass->blendmode = PBM_REPLACE;
return;
}
else if ((pass->rgbgen == RGB_GEN_IDENTITY_LIGHTING) && (pass->alphagen == ALPHA_GEN_IDENTITY))
{
pass->shaderbits &= ~SBITS_BLEND_BITS;
pass->shaderbits |= SBITS_SRCBLEND_ONE;
pass->shaderbits |= SBITS_DSTBLEND_ZERO;
pass->blendmode = PBM_REPLACELIGHT;
}
else
{
pass->shaderbits &= ~SBITS_BLEND_BITS;
pass->shaderbits |= SBITS_SRCBLEND_ONE;
pass->shaderbits |= SBITS_DSTBLEND_ZERO;
pass->blendmode = PBM_MODULATE;
}
return;
}
if (((pass->shaderbits&SBITS_BLEND_BITS) == (SBITS_SRCBLEND_ZERO|SBITS_DSTBLEND_SRC_COLOR)) ||
((pass->shaderbits&SBITS_BLEND_BITS) == (SBITS_SRCBLEND_DST_COLOR|SBITS_DSTBLEND_ZERO)))
pass->blendmode = PBM_MODULATE;
else if ((pass->shaderbits&SBITS_BLEND_BITS) == (SBITS_SRCBLEND_ONE|SBITS_DSTBLEND_ONE))
pass->blendmode = PBM_ADD;
else if ((pass->shaderbits&SBITS_BLEND_BITS) == (SBITS_SRCBLEND_SRC_ALPHA|SBITS_DSTBLEND_ONE_MINUS_SRC_ALPHA))
pass->blendmode = PBM_DECAL;
else
pass->blendmode = PBM_MODULATE;
}
void Shader_Readpass (shader_t *shader, char **ptr)
{
char *token;
shaderpass_t *pass;
qboolean ignore;
static shader_t dummy;
int conddepth = 0;
int cond[8] = {0};
#define COND_IGNORE 1
#define COND_IGNOREPARENT 2
#define COND_ALLOWELSE 4
if ( shader->numpasses >= SHADER_PASS_MAX )
{
ignore = true;
shader = &dummy;
shader->numpasses = 1;
pass = shader->passes;
}
else
{
ignore = false;
pass = &shader->passes[shader->numpasses++];
}
// Set defaults
pass->flags = 0;
pass->anim_frames[0] = r_nulltex;
pass->anim_numframes = 0;
pass->rgbgen = RGB_GEN_UNKNOWN;
pass->alphagen = ALPHA_GEN_IDENTITY;
pass->tcgen = TC_GEN_BASE;
pass->numtcmods = 0;
pass->numMergedPasses = 1;
pass->stagetype = ST_AMBIENT;
if (shader->flags & SHADER_NOMIPMAPS)
pass->flags |= SHADER_PASS_NOMIPMAP;
while ( *ptr )
{
token = COM_ParseExt (ptr, true, true);
if ( !token[0] )
{
continue;
}
else if (!Q_stricmp(token, "if"))
{
if (conddepth+1 == sizeof(cond)/sizeof(cond[0]))
{
Con_Printf("if statements nest too deeply in shader %s\n", shader->name);
break;
}
conddepth++;
cond[conddepth] = (Shader_EvaluateCondition(shader, ptr)?0:COND_IGNORE);
cond[conddepth] |= COND_ALLOWELSE;
if (cond[conddepth-1] & (COND_IGNORE|COND_IGNOREPARENT))
cond[conddepth] |= COND_IGNOREPARENT;
}
else if (!Q_stricmp(token, "endif"))
{
if (!conddepth)
{
Con_Printf("endif without if in shader %s\n", shader->name);
break;
}
conddepth--;
}
else if (!Q_stricmp(token, "else"))
{
if (cond[conddepth] & COND_ALLOWELSE)
{
cond[conddepth] ^= COND_IGNORE;
cond[conddepth] &= ~COND_ALLOWELSE;
}
else
Con_Printf("unexpected else statement in shader %s\n", shader->name);
}
else if (cond[conddepth] & (COND_IGNORE|COND_IGNOREPARENT))
{
//eat it
while (ptr)
{
token = COM_ParseExt(ptr, false, true);
if ( !token[0] )
break;
}
}
else
{
if ( token[0] == '}' )
break;
else if ( Shader_Parsetok (shader, pass, shaderpasskeys, token, ptr) )
break;
}
}
if (conddepth)
{
Con_Printf("if statements without endif in shader %s\n", shader->name);
}
if (!ignore)
{
switch(pass->stagetype)
{
case ST_DIFFUSEMAP:
if (pass->texgen == T_GEN_SINGLEMAP)
shader->defaulttextures.base = pass->anim_frames[0];
break;
case ST_AMBIENT:
break;
case ST_BUMPMAP:
if (pass->texgen == T_GEN_SINGLEMAP)
shader->defaulttextures.bump = pass->anim_frames[0];
ignore = true;
break;
case ST_SPECULARMAP:
if (pass->texgen == T_GEN_SINGLEMAP)
shader->defaulttextures.specular = pass->anim_frames[0];
ignore = true;
break;
}
}
// check some things
if (ignore)
{
Shader_FreePass (pass);
shader->numpasses--;
return;
}
if ((pass->shaderbits&SBITS_BLEND_BITS) == (SBITS_SRCBLEND_ONE|SBITS_DSTBLEND_ZERO))
{
pass->shaderbits |= SBITS_MISC_DEPTHWRITE;
shader->flags |= SHADER_DEPTHWRITE;
}
switch (pass->rgbgen)
{
case RGB_GEN_IDENTITY_LIGHTING:
case RGB_GEN_IDENTITY:
case RGB_GEN_CONST:
case RGB_GEN_WAVE:
case RGB_GEN_ENTITY:
case RGB_GEN_ONE_MINUS_ENTITY:
case RGB_GEN_UNKNOWN: // assume RGB_GEN_IDENTITY or RGB_GEN_IDENTITY_LIGHTING
switch (pass->alphagen)
{
case ALPHA_GEN_IDENTITY:
case ALPHA_GEN_CONST:
case ALPHA_GEN_WAVE:
case ALPHA_GEN_ENTITY:
pass->flags |= SHADER_PASS_NOCOLORARRAY;
break;
default:
break;
}
break;
default:
break;
}
/*if ((shader->flags & SHADER_SKY) && (shader->flags & SHADER_DEPTHWRITE))
{
#ifdef warningmsg
#pragma warningmsg("is this valid?")
#endif
pass->shaderbits &= ~SBITS_MISC_DEPTHWRITE;
}
*/
}
static qboolean Shader_Parsetok (shader_t *shader, shaderpass_t *pass, shaderkey_t *keys, char *token, char **ptr)
{
shaderkey_t *key;
for (key = keys; key->keyword != NULL; key++)
{
if (!Q_stricmp (token, key->keyword))
{
if (key->func)
key->func ( shader, pass, ptr );
return ( ptr && *ptr && **ptr == '}' );
}
}
// Con_Printf("Unknown shader directive: \"%s\"\n", token);
// Next Line
while (ptr)
{
token = COM_ParseExt(ptr, false, true);
if ( !token[0] )
{
break;
}
}
return false;
}
void Shader_SetPassFlush (shaderpass_t *pass, shaderpass_t *pass2)
{
if (((pass->flags & SHADER_PASS_DETAIL) && !r_detailtextures.value) ||
((pass2->flags & SHADER_PASS_DETAIL) && !r_detailtextures.value) ||
(pass->flags & SHADER_PASS_VIDEOMAP) || (pass2->flags & SHADER_PASS_VIDEOMAP))
{
return;
}
/*identity alpha is required for merging*/
if (pass->alphagen != ALPHA_GEN_IDENTITY || pass2->alphagen != ALPHA_GEN_IDENTITY)
return;
/*rgbgen must be identity too except if the later pass is identity_ligting, in which case all is well and we can switch the first pass to identity_lighting instead*/
if (pass2->rgbgen == RGB_GEN_IDENTITY_LIGHTING && pass2->blendmode == PBM_MODULATE && pass->rgbgen == RGB_GEN_IDENTITY)
{
pass->blendmode = PBM_REPLACELIGHT;
pass->rgbgen = RGB_GEN_IDENTITY_LIGHTING;
pass2->rgbgen = RGB_GEN_IDENTITY;
}
/*rgbgen must be identity (or the first is identity_lighting)*/
else if (pass2->rgbgen != RGB_GEN_IDENTITY || (pass->rgbgen != RGB_GEN_IDENTITY && pass->rgbgen != RGB_GEN_IDENTITY_LIGHTING))
return;
/*if its alphatest, don't merge with anything other than lightmap*/
if ((pass->shaderbits & SBITS_ATEST_BITS) && (!(pass2->shaderbits & SBITS_MISC_DEPTHEQUALONLY) || pass2->texgen != T_GEN_LIGHTMAP))
return;
if ((pass->shaderbits & SBITS_MASK_BITS) != (pass2->shaderbits & SBITS_MASK_BITS))
return;
/*don't merge passes if the hardware cannot support it*/
if (pass->numMergedPasses >= be_maxpasses)
return;
// check if we can use multiple passes
if (pass2->blendmode == PBM_DOTPRODUCT)
{
pass->numMergedPasses++;
}
else if (pass->numMergedPasses < be_maxpasses)
{
if (pass->blendmode == PBM_REPLACE || pass->blendmode == PBM_REPLACELIGHT)
{
if ((pass2->blendmode == PBM_DECAL && sh_config.tex_env_combine) ||
(pass2->blendmode == PBM_ADD && sh_config.env_add) ||
(pass2->blendmode && pass2->blendmode != PBM_ADD) || sh_config.nv_tex_env_combine4)
{
pass->numMergedPasses++;
}
}
else if (pass->blendmode == PBM_ADD &&
pass2->blendmode == PBM_ADD && sh_config.env_add)
{
pass->numMergedPasses++;
}
else if (pass->blendmode == PBM_MODULATE && pass2->blendmode == PBM_MODULATE)
{
pass->numMergedPasses++;
}
else
return;
}
else return;
if (pass->texgen == T_GEN_LIGHTMAP && pass->blendmode == PBM_REPLACELIGHT && pass2->blendmode == PBM_MODULATE && sh_config.tex_env_combine)
{
if (pass->rgbgen == RGB_GEN_IDENTITY)
pass->rgbgen = RGB_GEN_IDENTITY_OVERBRIGHT; //get the light levels right
pass2->blendmode = PBM_OVERBRIGHT;
}
if (pass2->texgen == T_GEN_LIGHTMAP && pass2->blendmode == PBM_MODULATE && sh_config.tex_env_combine)
{
if (pass->rgbgen == RGB_GEN_IDENTITY)
pass->rgbgen = RGB_GEN_IDENTITY_OVERBRIGHT; //get the light levels right
pass->blendmode = PBM_REPLACELIGHT;
pass2->blendmode = PBM_OVERBRIGHT;
}
}
const char *Shader_AlphaMaskProgArgs(shader_t *s)
{
if (s->numpasses)
{
//alpha mask values ALWAYS come from the first pass.
shaderpass_t *pass = &s->passes[0];
switch(pass->shaderbits & SBITS_ATEST_BITS)
{
default:
break;
//cases inverted. the test is to enable
case SBITS_ATEST_GT0:
return "#MASK=0.0#MASKOP=>";
case SBITS_ATEST_LT128:
return "#MASK=0.5#MASKOP=<";
case SBITS_ATEST_GE128:
return "#MASK=0.5";
}
}
return "";
}
void Shader_Programify (shader_t *s)
{
char *prog = NULL;
const char *mask;
enum
{
T_UNKNOWN,
T_WALL,
T_MODEL
} type = 0;
int i;
shaderpass_t *pass, *lightmap = NULL, *modellighting = NULL;
for (i = 0; i < s->numpasses; i++)
{
pass = &s->passes[i];
if (pass->rgbgen == RGB_GEN_LIGHTING_DIFFUSE)
modellighting = pass;
else if (pass->texgen == T_GEN_LIGHTMAP && pass->tcgen == TC_GEN_LIGHTMAP)
lightmap = pass;
}
if (modellighting)
{
pass = modellighting;
prog = "defaultskin";
}
else if (lightmap)
{
pass = modellighting;
prog = "defaultwall";
}
else
{
pass = NULL;
prog = "default2d";
return;
}
mask = Shader_AlphaMaskProgArgs(s);
s->prog = Shader_FindGeneric(va("%s%s", prog, mask), qrenderer);
s->numpasses = 0;
s->passes[s->numpasses++].texgen = T_GEN_DIFFUSE;
if (lightmap)
{
s->passes[s->numpasses++].texgen = T_GEN_LIGHTMAP;
s->passes[s->numpasses++].texgen = T_GEN_NORMALMAP;
s->passes[s->numpasses++].texgen = T_GEN_DELUXMAP;
s->passes[s->numpasses++].texgen = T_GEN_FULLBRIGHT;
s->passes[s->numpasses++].texgen = T_GEN_SPECULAR;
}
if (modellighting)
{
s->passes[s->numpasses++].texgen = T_GEN_LOWEROVERLAY;
s->passes[s->numpasses++].texgen = T_GEN_UPPEROVERLAY;
s->passes[s->numpasses++].texgen = T_GEN_FULLBRIGHT;
s->passes[s->numpasses++].texgen = T_GEN_NORMALMAP;
s->passes[s->numpasses++].texgen = T_GEN_SPECULAR;
}
}
void Shader_Finish (shader_t *s)
{
int i;
shaderpass_t *pass;
//FIXME: reorder doom3 stages.
//put diffuse first. give it a lightmap pass also, if we found a diffuse one with no lightmap.
//then the ambient stages.
//and forget about the bump/specular stages as we don't support them and already stripped them.
if (s->flags & SHADER_SKY)
{
/*skies go all black if fastsky is set*/
if (r_fastsky.ival)
s->flags = 0;
/*or if its purely a skybox and has missing textures*/
// if (!s->numpasses)
// for (i = 0; i < 6; i++)
// if (missing_texture.ref == s->skydome->farbox_textures[i].ref)
// s->flags = 0;
if (!(s->flags & SHADER_SKY))
{
Shader_Reset(s);
Shader_DefaultScript(s->name, s,
"{\n"
"sort sky\n"
"{\n"
"map $whiteimage\n"
"rgbgen const $r_fastskycolour\n"
"}\n"
"surfaceparm nodlight\n"
"}\n"
);
return;
}
}
if (TEXVALID(s->defaulttextures.base))
s->flags &= ~SHADER_NOIMAGE;
if (!s->numpasses && s->sort != SHADER_SORT_PORTAL && !(s->flags & (SHADER_NODRAW|SHADER_SKY)) && !s->fog_dist && !s->prog)
{
pass = &s->passes[s->numpasses++];
pass = &s->passes[0];
pass->tcgen = TC_GEN_BASE;
if (TEXVALID(s->defaulttextures.base))
pass->texgen = T_GEN_DIFFUSE;
else
{
pass->texgen = T_GEN_SINGLEMAP;
TEXASSIGN(pass->anim_frames[0], R_LoadHiResTexture(s->name, NULL, IF_NOALPHA));
if (!TEXVALID(pass->anim_frames[0]))
{
Con_Printf("Shader %s failed to load default texture\n", s->name);
pass->anim_frames[0] = missing_texture;
}
Con_Printf("Shader %s with no passes and no surfaceparm nodraw, inserting pass\n", s->name);
}
pass->shaderbits |= SBITS_MISC_DEPTHWRITE;
pass->rgbgen = RGB_GEN_VERTEX_LIGHTING;
pass->alphagen = ALPHA_GEN_IDENTITY;
pass->numMergedPasses = 1;
Shader_SetBlendmode(pass);
}
if (!Q_stricmp (s->name, "flareShader"))
{
s->flags |= SHADER_FLARE;
s->flags |= SHADER_NODRAW;
}
if (!s->numpasses && !s->sort)
{
s->sort = SHADER_SORT_ADDITIVE;
return;
}
if (!s->sort && s->passes->texgen == T_GEN_CURRENTRENDER)
s->sort = SHADER_SORT_NEAREST;
if ((s->polyoffset.unit < 0) && !s->sort)
{
s->sort = SHADER_SORT_DECAL;
}
if ((r_vertexlight.value || !(s->usageflags & SUF_LIGHTMAP)) && !s->prog)
{
// do we have a lightmap pass?
pass = s->passes;
for (i = 0; i < s->numpasses; i++, pass++)
{
if (pass->flags & SHADER_PASS_LIGHTMAP)
break;
}
if (i == s->numpasses)
{
goto done;
}
// try to find pass with rgbgen set to RGB_GEN_VERTEX
pass = s->passes;
for (i = 0; i < s->numpasses; i++, pass++)
{
if (pass->rgbgen == RGB_GEN_VERTEX_LIGHTING)
break;
}
if (i < s->numpasses)
{ // we found it
pass->flags |= SHADER_CULL_FRONT;
pass->flags &= ~SHADER_PASS_ANIMMAP;
pass->shaderbits &= ~SBITS_BLEND_BITS;
pass->blendmode = 0;
pass->shaderbits |= SBITS_MISC_DEPTHWRITE;
pass->alphagen = ALPHA_GEN_IDENTITY;
pass->numMergedPasses = 1;
s->flags |= SHADER_DEPTHWRITE;
s->sort = SHADER_SORT_OPAQUE;
s->numpasses = 1;
memcpy(&s->passes[0], pass, sizeof(shaderpass_t));
}
else
{ // we didn't find it - simply remove all lightmap passes
pass = s->passes;
for(i = 0; i < s->numpasses; i++, pass++)
{
if (pass->flags & SHADER_PASS_LIGHTMAP)
break;
}
if ( i == s->numpasses -1 )
{
s->numpasses--;
}
else if ( i < s->numpasses - 1 )
{
for ( ; i < s->numpasses - 1; i++, pass++ )
{
memcpy ( pass, &s->passes[i+1], sizeof(shaderpass_t) );
}
s->numpasses--;
}
if ( s->passes[0].numtcmods )
{
pass = s->passes;
for ( i = 0; i < s->numpasses; i++, pass++ )
{
if ( !pass->numtcmods )
break;
}
memcpy ( &s->passes[0], pass, sizeof(shaderpass_t) );
}
s->passes[0].rgbgen = RGB_GEN_VERTEX_LIGHTING;
s->passes[0].alphagen = ALPHA_GEN_IDENTITY;
s->passes[0].blendmode = 0;
s->passes[0].flags &= ~(SHADER_PASS_ANIMMAP|SHADER_PASS_NOCOLORARRAY);
s->passes[0].shaderbits &= ~SBITS_BLEND_BITS;
s->passes[0].shaderbits |= SBITS_MISC_DEPTHWRITE;
s->passes[0].numMergedPasses = 1;
s->numpasses = 1;
s->flags |= SHADER_DEPTHWRITE;
}
}
done:;
//if we've no specular map, try and find whatever the q3 syntax said. hopefully it'll be compatible...
if (!TEXVALID(s->defaulttextures.specular))
{
for (pass = s->passes, i = 0; i < s->numpasses; i++, pass++)
{
if (pass->alphagen == ALPHA_GEN_SPECULAR)
if (pass->texgen == T_GEN_ANIMMAP || pass->texgen == T_GEN_SINGLEMAP)
s->defaulttextures.specular = pass->anim_frames[0];
}
}
if (!TEXVALID(s->defaulttextures.base))
{
shaderpass_t *best = NULL;
int bestweight = 9999999;
int weight;
for (pass = s->passes, i = 0; i < s->numpasses; i++, pass++)
{
weight = 0;
if (pass->flags & SHADER_PASS_DETAIL)
weight += 500; //prefer not to use a detail pass. these are generally useless.
if (pass->numtcmods || pass->tcgen != TC_GEN_BASE)
weight += 200;
if (pass->rgbgen != RGB_GEN_IDENTITY && pass->rgbgen != RGB_GEN_IDENTITY_OVERBRIGHT && pass->rgbgen != RGB_GEN_IDENTITY_LIGHTING)
weight += 100;
if (pass->texgen != T_GEN_ANIMMAP && pass->texgen != T_GEN_SINGLEMAP && pass->texgen != T_GEN_VIDEOMAP)
weight += 1000;
if (weight < bestweight)
{
bestweight = weight;
best = pass;
}
}
if (best)
{
if (best->texgen == T_GEN_ANIMMAP || best->texgen == T_GEN_SINGLEMAP)
s->defaulttextures.base = best->anim_frames[0];
#ifndef NOMEDIA
else if (pass->texgen == T_GEN_VIDEOMAP && pass->cin)
s->defaulttextures.base = Media_UpdateForShader(best->cin);
#endif
}
}
pass = s->passes;
for (i = 0; i < s->numpasses; i++, pass++)
{
if (!(pass->shaderbits & (SBITS_BLEND_BITS|SBITS_MASK_BITS)))
{
break;
}
}
// all passes have blendfuncs
if (i == s->numpasses)
{
int opaque;
opaque = -1;
pass = s->passes;
for (i = 0; i < s->numpasses; i++, pass++ )
{
if (pass->shaderbits & SBITS_ATEST_BITS)
{
opaque = i;
}
if (pass->rgbgen == RGB_GEN_UNKNOWN)
{
if ( (pass->shaderbits & SBITS_SRCBLEND_BITS) == 0
|| (pass->shaderbits & SBITS_SRCBLEND_BITS) == SBITS_SRCBLEND_ONE
|| (pass->shaderbits & SBITS_SRCBLEND_BITS) == SBITS_SRCBLEND_SRC_ALPHA)
pass->rgbgen = RGB_GEN_IDENTITY_LIGHTING;
else
pass->rgbgen = RGB_GEN_IDENTITY;
}
Shader_SetBlendmode (pass);
if (pass->blendmode == PBM_ADD)
s->defaulttextures.fullbright = pass->anim_frames[0];
}
if (!(s->flags & SHADER_SKY ) && !s->sort)
{
if (opaque == -1)
s->sort = SHADER_SORT_BLEND;
else
s->sort = SHADER_SORT_SEETHROUGH;
}
}
else
{
int j;
shaderpass_t *sp;
sp = s->passes;
for (j = 0; j < s->numpasses; j++, sp++)
{
if (sp->rgbgen == RGB_GEN_UNKNOWN)
{
if (sp->flags & SHADER_PASS_LIGHTMAP)
sp->rgbgen = RGB_GEN_IDENTITY_LIGHTING;
else
sp->rgbgen = RGB_GEN_IDENTITY;
}
Shader_SetBlendmode (sp);
}
if (!s->sort)
{
if (pass->shaderbits & SBITS_ATEST_BITS)
s->sort = SHADER_SORT_SEETHROUGH;
}
if (!( s->flags & SHADER_DEPTHWRITE) &&
!(s->flags & SHADER_SKY))
{
pass->shaderbits |= SBITS_MISC_DEPTHWRITE;
s->flags |= SHADER_DEPTHWRITE;
}
}
if (s->numpasses >= 2)
{
int j;
pass = s->passes;
for (i = 0; i < s->numpasses;)
{
if (i == s->numpasses - 1)
break;
pass = s->passes + i;
for (j = 1; j < s->numpasses-i && j == i + pass->numMergedPasses && j < be_maxpasses; j++)
Shader_SetPassFlush (pass, pass + j);
i += pass->numMergedPasses;
}
}
if (!s->sort)
{
s->sort = SHADER_SORT_OPAQUE;
}
if ((s->flags & SHADER_SKY) && (s->flags & SHADER_DEPTHWRITE))
{
s->flags &= ~SHADER_DEPTHWRITE;
}
if (!s->bemoverrides[bemoverride_depthonly])
{
const char *mask = Shader_AlphaMaskProgArgs(s);
if (*mask)
s->bemoverrides[bemoverride_depthonly] = R_RegisterShader(va("depthonly%s", mask), SUF_NONE,
"{\n"
"program depthonly\n"
"{\n"
"map $diffuse\n"
"depthwrite\n"
"maskcolor\n"
"}\n"
"}\n");
}
if (!s->prog && sh_config.progs_required)
Shader_Programify(s);
if (s->prog)
{
if (!s->numpasses)
{
s->passes[0].texgen = T_GEN_DIFFUSE;
s->numpasses = 1;
}
s->passes->numMergedPasses = s->numpasses;
}
}
/*
void Shader_UpdateRegistration (void)
{
int i, j, l;
shader_t *shader;
shaderpass_t *pass;
shader = r_shaders;
for (i = 0; i < MAX_SHADERS; i++, shader++)
{
if (!shader->registration_sequence)
continue;
if (shader->registration_sequence != registration_sequence)
{
Shader_Free ( shader );
shader->registration_sequence = 0;
continue;
}
pass = shader->passes;
for (j = 0; j < shader->numpasses; j++, pass++)
{
if (pass->flags & SHADER_PASS_ANIMMAP)
{
for (l = 0; l < pass->anim_numframes; l++)
{
if (pass->anim_frames[l])
pass->anim_frames[l]->registration_sequence = registration_sequence;
}
}
else if ( pass->flags & SHADER_PASS_VIDEOMAP )
{
// Shader_RunCinematic will do the job
// pass->cin->frame = -1;
}
else if ( !(pass->flags & SHADER_PASS_LIGHTMAP) )
{
if ( pass->anim_frames[0] )
pass->anim_frames[0]->registration_sequence = registration_sequence;
}
}
}
}
*/
void R_BuildDefaultTexnums(texnums_t *tn, shader_t *shader)
{
char *h;
char imagename[MAX_QPATH];
strcpy(imagename, shader->name);
h = strchr(imagename, '#');
if (h)
*h = 0;
if (!tn)
tn = &shader->defaulttextures;
if (!TEXVALID(shader->defaulttextures.base))
{
/*dlights/realtime lighting needs some stuff*/
if (!TEXVALID(tn->base))
{
tn->base = R_LoadHiResTexture(imagename, NULL, IF_NOALPHA);
}
if (TEXVALID(tn->base))
shader->flags &= ~SHADER_NOIMAGE;
TEXASSIGN(shader->defaulttextures.base, tn->base);
}
COM_StripExtension(imagename, imagename, sizeof(imagename));
if (!TEXVALID(shader->defaulttextures.bump))
{
if (r_loadbumpmapping)
{
if (!TEXVALID(tn->bump))
tn->bump = R_LoadHiResTexture(va("%s_norm", imagename), NULL, IF_NOALPHA);
if (!TEXVALID(tn->bump))
tn->bump = R_LoadHiResTexture(va("%s_bump", imagename), NULL, IF_NOALPHA);
if (!TEXVALID(tn->bump))
tn->bump = R_LoadHiResTexture(va("normalmaps/%s", imagename), NULL, IF_NOALPHA);
}
TEXASSIGN(shader->defaulttextures.bump, tn->bump);
}
if (!TEXVALID(shader->defaulttextures.loweroverlay))
{
if (shader->flags & SHADER_HASTOPBOTTOM)
{
if (!TEXVALID(tn->loweroverlay))
tn->loweroverlay = R_LoadHiResTexture(va("%s_pants", imagename), NULL, 0); /*how rude*/
}
TEXASSIGN(shader->defaulttextures.loweroverlay, tn->loweroverlay);
}
if (!TEXVALID(shader->defaulttextures.upperoverlay))
{
if (shader->flags & SHADER_HASTOPBOTTOM)
{
if (!TEXVALID(tn->upperoverlay))
tn->upperoverlay = R_LoadHiResTexture(va("%s_shirt", imagename), NULL, 0);
}
TEXASSIGN(shader->defaulttextures.upperoverlay, tn->upperoverlay);
}
if (!TEXVALID(shader->defaulttextures.specular))
{
extern cvar_t gl_specular;
if ((shader->flags & SHADER_HASGLOSS) && gl_specular.value && gl_load24bit.value)
{
if (!TEXVALID(tn->specular))
tn->specular = R_LoadHiResTexture(va("%s_gloss", imagename), NULL, 0);
}
TEXASSIGN(shader->defaulttextures.specular, tn->specular);
}
if (!TEXVALID(shader->defaulttextures.fullbright))
TEXASSIGN(shader->defaulttextures.fullbright, tn->fullbright);
}
void Shader_DefaultScript(const char *shortname, shader_t *s, const void *args)
{
const char *f = args;
if (!args)
return;
while (*f == ' ' || *f == '\t' || *f == '\n' || *f == '\r')
f++;
if (*f == '{')
{
f++;
Shader_ReadShader(s, (void*)f, SPM_DEFAULT);
}
};
void Shader_DefaultBSPLM(const char *shortname, shader_t *s, const void *args)
{
char *builtin = NULL;
if (!builtin && r_drawflat.ival)
builtin = (
"{\n"
"program drawflat_wall\n"
"{\n"
"map $lightmap\n"
"tcgen lightmap\n"
"rgbgen const $r_floorcolour\n"
"}\n"
"}\n"
);
#ifdef D3D11QUAKE
if (qrenderer == QR_DIRECT3D11)
{
if (!builtin)
builtin = (
"{\n"
"program defaultwall\n"
"{\n"
"map $diffuse\n"
"}\n"
"{\n"
"map $lightmap\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $deluxmap\n"
"}\n"
"{\n"
"map $fullbright\n"
"}\n"
"{\n"
"map $specular\n"
"}\n"
"}\n"
);
}
#endif
#if 0//def D3D9QUAKE
if (qrenderer == QR_DIRECT3D9)
{
if (!builtin)
builtin = (
"{\n"
"program defaultwall\n"
"{\n"
"map $diffuse\n"
"}\n"
"{\n"
"map $lightmap\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $deluxmap\n"
"}\n"
"{\n"
"map $fullbright\n"
"}\n"
"{\n"
"map $specular\n"
"}\n"
"}\n"
);
}
#endif
#ifdef GLQUAKE
if (qrenderer == QR_OPENGL)
{
if (!builtin && r_lightprepass.ival)
{
builtin = (
"{\n"
"program lpp_wall\n"
"{\n"
"map $sourcecolour\n"
"}\n"
"{\n"
"map $diffuse\n"
"}\n"
"{\n"
"map $lightmap\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $deluxmap\n"
"}\n"
"{\n"
"map $fullbright\n"
"}\n"
"}\n"
);
}
if (!builtin && gl_config.arb_shader_objects)
{
builtin = (
"{\n"
"program defaultwall\n"
"{\n"
"map $diffuse\n"
"}\n"
"{\n"
"map $lightmap\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $deluxmap\n"
"}\n"
"{\n"
"map $fullbright\n"
"}\n"
"{\n"
"map $specular\n"
"}\n"
"}\n"
);
}
}
#endif
if (!builtin)
builtin = (
"{\n"
/* "if $deluxmap\n"
"{\n"
"map $normalmap\n"
"tcgen base\n"
"depthwrite\n"
"}\n"
"{\n"
"map $deluxmap\n"
"tcgen lightmap\n"
"}\n"
"endif\n"
*/// "if !r_fullbright\n"
"{\n"
"map $lightmap\n"
// "if $deluxmap\n"
// "blendfunc gl_dst_color gl_zero\n"
// "endif\n"
"}\n"
// "endif\n"
"{\n"
"map $diffuse\n"
"tcgen base\n"
// "if $deluxmap || !r_fullbright\n"
// "blendfunc gl_dst_color gl_zero\n"
"blendfunc filter\n"
// "endif\n"
"}\n"
"if gl_fb_bmodels\n"
"{\n"
"map $fullbright\n"
"blendfunc add\n"
"depthfunc equal\n"
"}\n"
"endif\n"
"}\n"
);
Shader_DefaultScript(shortname, s, builtin);
}
void Shader_DefaultCinematic(const char *shortname, shader_t *s, const void *args)
{
Shader_DefaultScript(shortname, s,
va(
"{\n"
"program default2d\n"
"{\n"
"videomap \"%s\"\n"
"}\n"
"}\n"
, (const char*)args)
);
}
/*shortname should begin with 'skybox_'*/
void Shader_DefaultSkybox(const char *shortname, shader_t *s, const void *args)
{
Shader_DefaultScript(shortname, s,
va(
"{\n"
"skyparms %s - -\n"
"}\n"
, shortname+7)
);
}
char *Shader_DefaultBSPWater(const char *shortname)
{
int wstyle;
if (r_wateralpha.value == 0)
wstyle = -1;
else if (r_fastturb.ival)
wstyle = 0;
#ifdef GLQUAKE
else if (qrenderer == QR_OPENGL && gl_config.arb_shader_objects && !strncmp(shortname, "*lava", 5) && *r_lavastyle.string)
wstyle = r_lavastyle.ival;
else if (qrenderer == QR_OPENGL && gl_config.arb_shader_objects && !strncmp(shortname, "*slime", 5) && *r_slimestyle.string)
wstyle = r_slimestyle.ival;
else if (qrenderer == QR_OPENGL && gl_config.arb_shader_objects && strncmp(shortname, "*lava", 5))
wstyle = r_waterstyle.ival<1?1:r_waterstyle.ival;
#endif
else
wstyle = 1;
#ifdef GLQUAKE
if (wstyle > 2 && !gl_config.ext_framebuffer_objects)
wstyle = 2;
#endif
switch(wstyle)
{
case -1: //invisible
return (
"{\n"
"surfaceparm nodraw\n"
"surfaceparm nodlight\n"
"}\n"
);
case 0: //fastturb
return (
"{\n"
"{\n"
"map $whiteimage\n"
"rgbgen const $r_fastturbcolour\n"
"}\n"
"surfaceparm nodlight\n"
"}\n"
);
default:
case 1: //vanilla style
return (
"{\n"
"program defaultwarp\n"
"{\n"
"map $diffuse\n"
"tcmod turb 0.02 0.1 0.5 0.1\n"
"if !$#ALPHA\n"
"if r_wateralpha < 1\n"
"alphagen const $r_wateralpha\n"
"blendfunc gl_src_alpha gl_one_minus_src_alpha\n"
"endif\n"
"else\n"
"if $#ALPHA < 1\n"
"alphagen const $#ALPHA\n"
"blendfunc gl_src_alpha gl_one_minus_src_alpha\n"
"endif\n"
"endif\n"
"}\n"
"surfaceparm nodlight\n"
"}\n"
);
case 2: //refraction of the underwater surface, with a fresnel
return (
"{\n"
"surfaceparm nodlight\n"
"{\n"
"map $refraction\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $diffuse\n"
"}\n"
// "{\n"
// "map $refractiondepth\n"
// "}\n"
"program altwater#FRESNEL=4\n"
"}\n"
);
case 3: //reflections
return (
"{\n"
"surfaceparm nodlight\n"
"{\n"
"map $refraction\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $reflection\n"
"}\n"
// "{\n"
// "map $refractiondepth\n"
// "}\n"
"program altwater#REFLECT#FRESNEL=4\n"
"}\n"
);
case 4: //ripples
return (
"{\n"
"surfaceparm nodlight\n"
"{\n"
"map $refraction\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $diffuse\n"
"}\n"
// "{\n"
// "map $refractiondepth\n"
// "}\n"
"{\n"
"map $ripplemap\n"
"}\n"
"program altwater#RIPPLEMAP#FRESNEL=4\n"
"}\n"
);
case 5: //ripples+reflections
return (
"{\n"
"surfaceparm nodlight\n"
"{\n"
"map $refraction\n"
"}\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $reflection\n"
"}\n"
// "{\n"
// "map $refractiondepth\n"
// "}\n"
"{\n"
"map $ripplemap\n"
"}\n"
"program altwater#REFLECT#RIPPLEMAP#FRESNEL=4\n"
"}\n"
);
}
}
void Shader_DefaultWaterShader(const char *shortname, shader_t *s, const void *args)
{
Shader_DefaultScript(shortname, s, Shader_DefaultBSPWater(shortname));
}
void Shader_DefaultBSPQ2(const char *shortname, shader_t *s, const void *args)
{
if (!strncmp(shortname, "sky/", 4))
{
Shader_DefaultScript(shortname, s,
"{\n"
"surfaceparm nodlight\n"
"skyparms - - -\n"
"}\n"
);
}
else if (!strncmp(shortname, "warp/", 5) || !strncmp(shortname, "warp33/", 7) || !strncmp(shortname, "warp66/", 7))
{
Shader_DefaultScript(shortname, s, Shader_DefaultBSPWater(shortname));
}
else if (!strncmp(shortname, "trans/", 6))
Shader_DefaultScript(shortname, s,
"{\n"
"{\n"
"map $diffuse\n"
"alphagen const $#ALPHA\n"
"blendfunc blend\n"
"}\n"
"}\n"
);
else
Shader_DefaultBSPLM(shortname, s, args);
}
void Shader_DefaultBSPQ1(const char *shortname, shader_t *s, const void *args)
{
char *builtin = NULL;
if (r_mirroralpha.value < 1 && !strcmp(shortname, "window02_1"))
{
if (r_mirroralpha.value < 0)
{
builtin = "{\n"
"portal\n"
"{\n"
"map $diffuse\n"
"blendfunc blend\n"
"alphagen portal 512\n"
"depthwrite\n"
"}\n"
"}\n";
}
else
{
builtin = "{\n"
"portal\n"
"{\n"
"map $diffuse\n"
"blendfunc blend\n"
"alphagen const $r_mirroralpha\n"
"depthwrite\n"
"}\n"
"surfaceparm nodlight\n"
"}\n";
}
}
if (!builtin && (*shortname == '*'))
{
builtin = Shader_DefaultBSPWater(shortname);
}
if (!builtin && !strncmp(shortname, "sky", 3))
{
//q1 sky
if (r_fastsky.ival)
{
builtin = (
"{\n"
"sort sky\n"
"{\n"
"map $whiteimage\n"
"rgbgen const $r_fastskycolour\n"
"}\n"
"surfaceparm nodlight\n"
"}\n"
);
}
else if (*r_skyboxname.string)
{
builtin = (
"{\n"
"sort sky\n"
"skyparms $r_skybox - -\n"
"surfaceparm nodlight\n"
"}\n"
);
Shader_DefaultScript(shortname, s, builtin);
if (s->flags & SHADER_SKY)
return;
builtin = NULL;
/*if the r_skybox failed to load or whatever, reset and fall through and just use the regular sky*/
Shader_Reset(s);
}
if (!builtin)
builtin = (
"{\n"
"sort sky\n"
"program defaultsky\n"
"skyparms - 512 -\n"
/*WARNING: these values are not authentic quake, only close aproximations*/
"{\n"
"map $diffuse\n"
"tcmod scale 10 10\n"
"tcmod scroll 0.04 0.04\n"
"depthwrite\n"
"}\n"
"{\n"
"map $fullbright\n"
"blendfunc blend\n"
"tcmod scale 10 10\n"
"tcmod scroll 0.02 0.02\n"
"}\n"
"}\n"
);
}
if (!builtin && *shortname == '{')
{
/*alpha test*/
builtin = (
"{\n"
/* "if $deluxmap\n"
"{\n"
"map $normalmap\n"
"tcgen base\n"
"}\n"
"{\n"
"map $deluxmap\n"
"tcgen lightmap\n"
"}\n"
"endif\n"*/
"{\n"
"map $diffuse\n"
"tcgen base\n"
"alphamask\n"
"}\n"
"if $lightmap\n"
"{\n"
"map $lightmap\n"
"blendfunc gl_dst_color gl_zero\n"
"depthfunc equal\n"
"}\n"
"endif\n"
"{\n"
"map $fullbright\n"
"blendfunc add\n"
"depthfunc equal\n"
"}\n"
"}\n"
);
}
/*Hack: note that halflife would normally expect you to use rendermode/renderampt*/
if (!builtin && (!strncmp(shortname, "glass", 5)/* || !strncmp(shortname, "window", 6)*/))
{
/*alpha bended*/
builtin = (
"{\n"
"{\n"
"map $diffuse\n"
"tcgen base\n"
"blendfunc blend\n"
"}\n"
"}\n"
);
}
if (builtin)
Shader_DefaultScript(shortname, s, builtin);
else
Shader_DefaultBSPLM(shortname, s, args);
}
void Shader_DefaultBSPVertex(char *shortname, shader_t *s, const void *args)
{
shaderpass_t *pass;
s->defaulttextures.base = R_LoadHiResTexture(va("%s_d.tga", shortname), NULL, 0);
if (Shader_ParseShader("defaultflare", s))
return;
pass = &s->passes[0];
pass->tcgen = TC_GEN_BASE;
pass->shaderbits |= SBITS_MISC_DEPTHWRITE;
pass->rgbgen = RGB_GEN_VERTEX_LIGHTING;
pass->alphagen = ALPHA_GEN_IDENTITY;
pass->numMergedPasses = 1;
Shader_SetBlendmode(pass);
if (TEXVALID(s->defaulttextures.base))
{
pass->texgen = T_GEN_DIFFUSE;
}
else
{
pass->anim_frames[0] = R_LoadHiResTexture(shortname, NULL, 0);
if (!TEXVALID(pass->anim_frames[0]))
{
Con_DPrintf (CON_WARNING "Shader %s has a stage with no image: %s.\n", s->name, shortname );
pass->anim_frames[0] = missing_texture;
}
}
s->numpasses = 1;
s->numdeforms = 0;
s->flags = SHADER_DEPTHWRITE|SHADER_CULL_FRONT;
s->sort = SHADER_SORT_OPAQUE;
s->uses = 1;
}
void Shader_DefaultBSPFlare(char *shortname, shader_t *s, const void *args)
{
shaderpass_t *pass;
if (Shader_ParseShader("defaultflare", s))
return;
pass = &s->passes[0];
pass->flags = SHADER_PASS_NOCOLORARRAY;
pass->shaderbits |= SBITS_SRCBLEND_ONE|SBITS_DSTBLEND_ONE;
pass->anim_frames[0] = R_LoadHiResTexture(shortname, NULL, 0);
pass->rgbgen = RGB_GEN_VERTEX_LIGHTING;
pass->alphagen = ALPHA_GEN_IDENTITY;
pass->numtcmods = 0;
pass->tcgen = TC_GEN_BASE;
pass->numMergedPasses = 1;
Shader_SetBlendmode(pass);
if (!TEXVALID(pass->anim_frames[0]))
{
Con_DPrintf (CON_WARNING "Shader %s has a stage with no image: %s.\n", s->name, shortname );
pass->anim_frames[0] = missing_texture;
}
s->numpasses = 1;
s->numdeforms = 0;
s->flags = SHADER_FLARE;
s->sort = SHADER_SORT_ADDITIVE;
s->uses = 1;
s->flags |= SHADER_NODRAW;
}
void Shader_DefaultSkin(char *shortname, shader_t *s, const void *args)
{
if (Shader_ParseShader("defaultskin", s))
return;
Shader_DefaultScript(shortname, s,
"{\n"
"if $lpp\n"
"program lpp_skin\n"
"else\n"
"program defaultskin\n"
"endif\n"
"if gl_affinemodels\n"
"affine\n"
"endif\n"
"{\n"
"map $diffuse\n"
"rgbgen lightingDiffuse\n"
"}\n"
"{\n"
"map $loweroverlay\n"
"rgbgen bottomcolor\n"
"blendfunc gl_src_alpha gl_one\n"
"}\n"
"{\n"
"map $upperoverlay\n"
"rgbgen topcolor\n"
"blendfunc gl_src_alpha gl_one\n"
"}\n"
"{\n"
"map $fullbright\n"
"blendfunc add\n"
"}\n"
"if $haveprogram\n"
"{\n"
"map $normalmap\n"
"}\n"
"{\n"
"map $specular\n"
"}\n"
"endif\n"
"}\n"
);
s->flags |= SHADER_NOIMAGE;
}
void Shader_DefaultSkinShell(const char *shortname, shader_t *s, const void *args)
{
if (Shader_ParseShader("defaultskinshell", s))
return;
Shader_DefaultScript(shortname, s,
"{\n"
"sort blend\n"
"deformvertexes normal 1 1\n"
"{\n"
"map $diffuse\n"
"rgbgen entity\n"
"alphagen entity\n"
"blendfunc blend\n"
"}\n"
"}\n"
);
}
void Shader_Default2D(char *shortname, shader_t *s, const void *genargs)
{
if (Shader_ParseShader("default2d", s))
return;
Shader_DefaultScript(shortname, s,
"{\n"
"if $nofixed\n"
"program default2d\n"
"endif\n"
"affine\n"
"nomipmaps\n"
"{\n"
"clampmap $diffuse\n"
"rgbgen vertex\n"
"alphagen vertex\n"
"blendfunc gl_src_alpha gl_one_minus_src_alpha\n"
"}\n"
"sort additive\n"
"}\n"
);
TEXASSIGN(s->defaulttextures.base, R_LoadHiResTexture(shortname, NULL, IF_UIPIC|IF_NOPICMIP|IF_NOMIPMAP|IF_CLAMP));
if (!TEXVALID(s->defaulttextures.base))
{
unsigned char data[4*4] = {0};
TEXASSIGN(s->defaulttextures.base, R_LoadTexture8("black", 4, 4, data, 0, 0));
s->flags |= SHADER_NOIMAGE;
}
else
{
s->flags &= ~SHADER_NOIMAGE;
s->width = image_width;
s->height = image_height;
}
}
qboolean Shader_ReadShaderTerms(shader_t *s, char **shadersource, int parsemode, int *conddepth, int maxconddepth, int *cond)
{
char *token;
#define COND_IGNORE 1
#define COND_IGNOREPARENT 2
#define COND_ALLOWELSE 4
if (!*shadersource)
return false;
token = COM_ParseExt (shadersource, true, true);
if ( !token[0] )
return true;
else if (!Q_stricmp(token, "if"))
{
if (*conddepth+1 == maxconddepth)
{
Con_Printf("if statements nest too deeply in shader %s\n", s->name);
return false;
}
*conddepth+=1;
cond[*conddepth] = (!Shader_EvaluateCondition(s, shadersource)?COND_IGNORE:0);
cond[*conddepth] |= COND_ALLOWELSE;
if (cond[*conddepth-1] & (COND_IGNORE|COND_IGNOREPARENT))
cond[*conddepth] |= COND_IGNOREPARENT;
}
else if (!Q_stricmp(token, "endif"))
{
if (!*conddepth)
{
Con_Printf("endif without if in shader %s\n", s->name);
return false;
}
*conddepth-=1;
}
else if (!Q_stricmp(token, "else"))
{
if (cond[*conddepth] & COND_ALLOWELSE)
{
cond[*conddepth] ^= COND_IGNORE;
cond[*conddepth] &= ~COND_ALLOWELSE;
}
else
Con_Printf("unexpected else statement in shader %s\n", s->name);
}
else if (cond[*conddepth] & (COND_IGNORE|COND_IGNOREPARENT))
{
//eat it.
while (**shadersource)
{
token = COM_ParseExt(shadersource, false, true);
if ( !token[0] )
break;
}
}
else
{
int i;
for (i = 0; shadermacros[i].name; i++)
{
if (!Q_stricmp (token, shadermacros[i].name))
{
#define SHADER_MACRO_ARGS 6
int argn = 0;
char *body;
char arg[SHADER_MACRO_ARGS][256];
int cond = 0;
//parse args until the end of the line
while (*shadersource)
{
token = COM_ParseExt(shadersource, false, true);
if ( !token[0] )
{
break;
}
if (argn <= SHADER_MACRO_ARGS)
{
Q_strncpyz(arg[argn], token, sizeof(arg[argn]));
argn++;
}
}
body = shadermacros[i].body;
Shader_ReadShaderTerms(s, &body, parsemode, &cond, 0, &cond);
return true;
}
}
if (token[0] == '}')
return false;
else if (token[0] == '{')
Shader_Readpass(s, shadersource);
else if (Shader_Parsetok(s, NULL, shaderkeys, token, shadersource))
return false;
}
return true;
}
//loads a shader string into an existing shader object, and finalises it and stuff
static void Shader_ReadShader(shader_t *s, char *shadersource, int parsemode)
{
int conddepth = 0;
int cond[8];
cond[0] = 0;
memset(&parsestate, 0, sizeof(parsestate));
parsestate.mode = parsemode;
// set defaults
s->flags = SHADER_CULL_FRONT;
s->uses = 1;
while (Shader_ReadShaderTerms(s, &shadersource, parsemode, &conddepth, sizeof(cond)/sizeof(cond[0]), cond))
{
}
if (conddepth)
{
Con_Printf("if statements without endif in shader %s\n", s->name);
}
Shader_Finish ( s );
}
static qboolean Shader_ParseShader(char *parsename, shader_t *s)
{
size_t offset = 0, length;
char *buf = NULL;
enum shaderparsemode_e parsemode = SPM_DEFAULT;
if (Shader_LocateSource(parsename, &buf, &length, &offset, &parsemode))
{
// the shader is in the shader scripts
if (buf && offset < length )
{
char *file, *token;
file = buf + offset;
token = COM_ParseExt (&file, true, true);
if ( !file || token[0] != '{' )
{
FS_FreeFile(buf);
return false;
}
Shader_Reset(s);
Shader_ReadShader(s, file, parsemode);
return true;
}
}
return false;
}
void R_UnloadShader(shader_t *shader)
{
if (shader->uses-- == 1)
Shader_Free(shader);
}
static shader_t *R_LoadShader (const char *name, unsigned int usageflags, shader_gen_t *defaultgen, const char *genargs)
{
int i, f = -1;
char cleanname[MAX_QPATH];
char shortname[MAX_QPATH];
char *argsstart;
shader_t *s;
if (!*name)
name = "gfx/unspecified";
Q_strncpyz(cleanname, name, sizeof(cleanname));
COM_CleanUpPath(cleanname);
// check the hash first
s = Hash_Get(&shader_active_hash, cleanname);
while (s)
{
//make sure the same texture can be used as either a lightmap or vertexlit shader
//if it has an explicit shader overriding it then that still takes precidence. we might just have multiple copies of it.
//q3 has a separate (internal) shader for every lightmap.
if (!((s->usageflags ^ usageflags) & SUF_LIGHTMAP))
{
s->uses++;
return s;
}
s = Hash_GetNext(&shader_active_hash, cleanname, s);
}
// not loaded, find a free slot
for (i = 0; i < r_numshaders; i++)
{
if (!r_shaders[i] || !r_shaders[i]->uses)
{
if ( f == -1 ) // free shader
{
f = i;
break;
}
}
}
if (f == -1)
{
shader_t **n;
int nm;
f = r_numshaders;
if (f == r_maxshaders)
{
nm = r_maxshaders * 2;
n = realloc(r_shaders, nm*sizeof(*n));
if (!n)
{
Sys_Error( "R_LoadShader: Shader limit exceeded.");
return NULL;
}
memset(n+r_maxshaders, 0, (nm - r_maxshaders)*sizeof(*n));
r_shaders = n;
r_maxshaders = nm;
}
}
if (strlen(cleanname) >= sizeof(s->name))
{
Sys_Error( "R_LoadShader: Shader name too long.");
return NULL;
}
s = r_shaders[f];
if (!s)
s = r_shaders[f] = Z_Malloc(sizeof(*s));
s->id = f;
if (r_numshaders < f+1)
r_numshaders = f+1;
Q_strncpyz(s->name, cleanname, sizeof(s->name));
s->usageflags = usageflags;
s->generator = defaultgen;
if (genargs)
s->genargs = strdup(genargs);
else
s->genargs = NULL;
//now determine the 'short name'. ie: the shader that is loaded off disk (no args, no extension)
argsstart = strchr(cleanname, '#');
if (argsstart)
*argsstart = 0;
COM_StripExtension (cleanname, shortname, sizeof(shortname));
if (ruleset_allow_shaders.ival)
{
if (sh_config.shadernamefmt)
{
if (Shader_ParseShader(va(sh_config.shadernamefmt, shortname), s))
{
return s;
}
}
if (Shader_ParseShader(shortname, s))
{
return s;
}
}
// make a default shader
if (s->generator)
{
Shader_Reset(s);
if (!strcmp(shortname, "textures/common/clip"))
Shader_DefaultScript(cleanname, s,
"{\n"
"surfaceparm nodraw\n"
"surfaceparm nodlight\n"
"}\n");
else
s->generator(cleanname, s, s->genargs);
return s;
}
else
{
Shader_Free(s);
}
return NULL;
}
void Shader_DoReload(void)
{
shader_t *s;
unsigned int i;
char shortname[MAX_QPATH];
int oldsort;
qboolean resort = false;
if (shader_rescan_needed && ruleset_allow_shaders.ival)
{
COM_EnumerateFiles("materials/*.mtr", Shader_InitCallback, NULL);
COM_EnumerateFiles("shaders/*.shader", Shader_InitCallback, NULL);
COM_EnumerateFiles("scripts/*.shader", Shader_InitCallback, NULL);
COM_EnumerateFiles("scripts/*.rscript", Shader_InitCallback, NULL);
shader_reload_needed = true;
shader_rescan_needed = false;
}
if (!shader_reload_needed)
return;
shader_reload_needed = false;
Font_InvalidateColour();
Shader_ReloadGenerics();
for (i = 0; i < r_numshaders; i++)
{
s = r_shaders[i];
if (!s || !s->uses)
continue;
strcpy(shortname, s->name);
if (ruleset_allow_shaders.ival)
{
if (sh_config.shadernamefmt && Shader_ParseShader(va(sh_config.shadernamefmt, shortname), s))
continue;
if (Shader_ParseShader(shortname, s))
continue;
}
if (s->generator)
{
oldsort = s->sort;
Shader_Reset(s);
s->generator(shortname, s, s->genargs);
if (s->sort != oldsort)
resort = true;
}
}
if (resort)
{
Mod_ResortShaders();
}
}
void Shader_NeedReload(qboolean rescanfs)
{
if (rescanfs)
shader_rescan_needed = true;
shader_reload_needed = true;
}
cin_t *R_ShaderGetCinematic(shader_t *s)
{
#ifndef NOMEDIA
int j;
if (!s)
return NULL;
for (j = 0; j < s->numpasses; j++)
if (s->passes[j].cin)
return s->passes[j].cin;
#endif
/*no cinematic in this shader!*/
return NULL;
}
cin_t *R_ShaderFindCinematic(const char *name)
{
#ifdef NOMEDIA
return NULL;
#else
int i;
char shortname[MAX_QPATH];
shader_t *s;
if (!r_shaders)
return NULL;
COM_StripExtension ( name, shortname, sizeof(shortname));
COM_CleanUpPath(shortname);
//try and find it
for (i = 0; i < r_numshaders; i++)
{
s = r_shaders[i];
if (!s || !s->uses)
continue;
if (!Q_stricmp (shortname, s->name) )
return R_ShaderGetCinematic(s);
}
return NULL;
#endif
}
void Shader_ResetRemaps(void)
{
shader_t *s;
int i;
for (i = 0; i < r_numshaders; i++)
{
s = r_shaders[i];
if (!s)
continue;
s->remapto = s;
s->remaptime = 0;
}
}
void R_RemapShader(const char *sourcename, const char *destname, float timeoffset)
{
shader_t *o;
shader_t *n;
//make sure all types of the shader are remapped properly.
//if there's a .shader file with it then it should 'just work'.
o = R_LoadShader (sourcename, SUF_NONE, NULL, NULL);
n = R_LoadShader (destname, SUF_NONE, NULL, NULL);
if (o)
{
if (!n)
n = o;
o->remapto = n;
o->remaptime = timeoffset; //this just feels wrong.
}
o = R_LoadShader (sourcename, SUF_2D, NULL, NULL);
n = R_LoadShader (destname, SUF_2D, NULL, NULL);
if (o)
{
if (!n)
n = o;
o->remapto = n;
o->remaptime = timeoffset;
}
o = R_LoadShader (sourcename, SUF_LIGHTMAP, NULL, NULL);
n = R_LoadShader (destname, SUF_LIGHTMAP, NULL, NULL);
if (o)
{
if (!n)
n = o;
o->remapto = n;
o->remaptime = timeoffset;
}
}
void Shader_RemapShader_f(void)
{
char *sourcename = Cmd_Argv(1);
char *destname = Cmd_Argv(2);
float timeoffset = atof(Cmd_Argv(3));
if (!Cmd_FromGamecode() && !atoi(Info_ValueForKey(cl.serverinfo, "*cheats")))
{
Con_Printf("%s may only be used from gamecode, or when cheats are enabled\n", Cmd_Argv(0));
return;
}
if (!*sourcename)
{
Con_Printf("%s originalshader remappedshader starttime\n", Cmd_Argv(0));
return;
}
R_RemapShader(sourcename, destname, timeoffset);
}
shader_t *R_RegisterPic (const char *name)
{
shader_t *shader;
/*don't get confused by other shaders*/
image_width = 64;
image_height = 64;
shader = R_LoadShader (name, SUF_2D, Shader_Default2D, NULL);
/*worth a try*/
if (shader->width <= 0)
shader->width = image_width;
if (shader->height <= 0)
shader->height = image_height;
/*last ditch attempt*/
if (shader->width <= 0)
shader->width = 64;
if (shader->height <= 0)
shader->height = 64;
return shader;
}
shader_t *R_RegisterShader (const char *name, unsigned int usageflags, const char *shaderscript)
{
return R_LoadShader (name, usageflags, Shader_DefaultScript, shaderscript);
}
shader_t *R_RegisterShader_Lightmap (const char *name)
{
return R_LoadShader (name, SUF_LIGHTMAP, Shader_DefaultBSPLM, NULL);
}
shader_t *R_RegisterShader_Vertex (const char *name)
{
return R_LoadShader (name, 0, Shader_DefaultBSPVertex, NULL);
}
shader_t *R_RegisterShader_Flare (const char *name)
{
return R_LoadShader (name, 0, Shader_DefaultBSPFlare, NULL);
}
shader_t *R_RegisterSkin (const char *shadername, const char *modname)
{
shader_t *shader;
#ifdef _DEBUG
if (shadername == com_token)
Con_Printf("R_RegisterSkin was passed com_token. that will bug out.\n");
#endif
if (modname && !strchr(shadername, '/') && *shadername)
{
char newsname[MAX_QPATH];
char *b = COM_SkipPath(modname);
if (b != modname && b-modname + strlen(shadername)+1 < sizeof(newsname))
{
memcpy(newsname, modname, b - modname);
memcpy(newsname + (b-modname), shadername, strlen(shadername)+1);
/*if the specified shader does not contain a path, try and load one relative to the name of the model*/
shader = R_LoadShader (newsname, 0, Shader_DefaultSkin, NULL);
R_BuildDefaultTexnums(&shader->defaulttextures, shader);
/*if its a valid shader with valid textures, use it*/
if (!(shader->flags & SHADER_NOIMAGE))
return shader;
}
}
shader = R_LoadShader (shadername, 0, Shader_DefaultSkin, NULL);
return shader;
}
shader_t *R_RegisterCustom (const char *name, unsigned int usageflags, shader_gen_t *defaultgen, const void *args)
{
return R_LoadShader (name, usageflags, defaultgen, args);
}
#endif //SERVERONLY
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