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jedioutcast/CODE-mp/renderer/tr_shader.cpp
James Monroe 6af9b594e1 Jedi Outcast Patch v1.03
2013-04-04 16:05:53 -05:00

3932 lines
101 KiB
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#include "tr_local.h"
// tr_shader.c -- this file deals with the parsing and definition of shaders
static char *s_shaderText;
// the shader is parsed into these global variables, then copied into
// dynamically allocated memory if it is valid.
static shaderStage_t stages[MAX_SHADER_STAGES];
static shader_t shader;
static texModInfo_t texMods[MAX_SHADER_STAGES][TR_MAX_TEXMODS];
static qboolean deferLoad;
#define FILE_HASH_SIZE 1024
static shader_t* hashTable[FILE_HASH_SIZE];
#define MAX_SHADERTEXT_HASH 2048
static char **shaderTextHashTable[MAX_SHADERTEXT_HASH];
const int lightmapsNone[MAXLIGHTMAPS] =
{
LIGHTMAP_NONE,
LIGHTMAP_NONE,
LIGHTMAP_NONE,
LIGHTMAP_NONE
};
const int lightmaps2d[MAXLIGHTMAPS] =
{
LIGHTMAP_2D,
LIGHTMAP_2D,
LIGHTMAP_2D,
LIGHTMAP_2D
};
const int lightmapsVertex[MAXLIGHTMAPS] =
{
LIGHTMAP_BY_VERTEX,
LIGHTMAP_BY_VERTEX,
LIGHTMAP_BY_VERTEX,
LIGHTMAP_BY_VERTEX
};
const int lightmapsFullBright[MAXLIGHTMAPS] =
{
LIGHTMAP_WHITEIMAGE,
LIGHTMAP_WHITEIMAGE,
LIGHTMAP_WHITEIMAGE,
LIGHTMAP_WHITEIMAGE
};
const byte stylesDefault[MAXLIGHTMAPS] =
{
LS_NORMAL,
LS_LSNONE,
LS_LSNONE,
LS_LSNONE
};
/*
Ghoul2 Insert Start
*/
hitMatReg_t hitMatReg[MAX_HITMAT_ENTRIES];
int hitMatCount;
// see if we already registered this hit / materials file
int R_FindHitMat(const char *fname)
{
int i;
// simple linear search, this should only be called during precache anyway
for (i=1; i<hitMatCount; i++)
{
if (!stricmp(hitMatReg[i].name, fname))
{
return i;
}
}
return 0;
}
/*
Ghoul2 Insert End
*/
/*
================
return a hash value for the filename
================
*/
static long generateHashValue( const char *fname, const int size ) {
int i;
long hash;
char letter;
hash = 0;
i = 0;
while (fname[i] != '\0') {
letter = tolower(fname[i]);
if (letter =='.') break; // don't include extension
if (letter =='\\') letter = '/'; // damn path names
if (letter == PATH_SEP) letter = '/'; // damn path names
hash+=(long)(letter)*(i+119);
i++;
}
hash = (hash ^ (hash >> 10) ^ (hash >> 20));
hash &= (size-1);
return hash;
}
void R_RemapShader(const char *shaderName, const char *newShaderName, const char *timeOffset) {
char strippedName[MAX_QPATH];
int hash;
shader_t *sh, *sh2;
qhandle_t h;
sh = R_FindShaderByName( shaderName );
if (sh == NULL || sh == tr.defaultShader) {
h = RE_RegisterShaderLightMap(shaderName, lightmapsNone, stylesDefault);
sh = R_GetShaderByHandle(h);
}
if (sh == NULL || sh == tr.defaultShader) {
ri.Printf( PRINT_WARNING, "WARNING: R_RemapShader: shader %s not found\n", shaderName );
return;
}
sh2 = R_FindShaderByName( newShaderName );
if (sh2 == NULL || sh2 == tr.defaultShader) {
h = RE_RegisterShaderLightMap(newShaderName, lightmapsNone, stylesDefault);
sh2 = R_GetShaderByHandle(h);
}
if (sh2 == NULL || sh2 == tr.defaultShader) {
ri.Printf( PRINT_WARNING, "WARNING: R_RemapShader: new shader %s not found\n", newShaderName );
return;
}
// remap all the shaders with the given name
// even tho they might have different lightmaps
COM_StripExtension( shaderName, strippedName );
hash = generateHashValue(strippedName, FILE_HASH_SIZE);
for (sh = hashTable[hash]; sh; sh = sh->next) {
if (Q_stricmp(sh->name, strippedName) == 0) {
if (sh != sh2) {
sh->remappedShader = sh2;
} else {
sh->remappedShader = NULL;
}
}
}
if (timeOffset) {
sh2->timeOffset = atof(timeOffset);
}
}
/*
===============
ParseVector
===============
*/
qboolean ParseVector( const char **text, int count, float *v ) {
char *token;
int i;
// FIXME: spaces are currently required after parens, should change parseext...
token = COM_ParseExt( text, qfalse );
if ( strcmp( token, "(" ) ) {
ri.Printf( PRINT_WARNING, "WARNING: missing parenthesis in shader '%s'\n", shader.name );
return qfalse;
}
for ( i = 0 ; i < count ; i++ ) {
token = COM_ParseExt( text, qfalse );
if ( !token[0] ) {
ri.Printf( PRINT_WARNING, "WARNING: missing vector element in shader '%s'\n", shader.name );
return qfalse;
}
v[i] = atof( token );
}
token = COM_ParseExt( text, qfalse );
if ( strcmp( token, ")" ) ) {
ri.Printf( PRINT_WARNING, "WARNING: missing parenthesis in shader '%s'\n", shader.name );
return qfalse;
}
return qtrue;
}
/*
===============
NameToAFunc
===============
*/
static unsigned NameToAFunc( const char *funcname )
{
if ( !Q_stricmp( funcname, "GT0" ) )
{
return GLS_ATEST_GT_0;
}
else if ( !Q_stricmp( funcname, "LT128" ) )
{
return GLS_ATEST_LT_80;
}
else if ( !Q_stricmp( funcname, "GE128" ) )
{
return GLS_ATEST_GE_80;
}
else if ( !Q_stricmp( funcname, "GE192" ) )
{
return GLS_ATEST_GE_C0;
}
ri.Printf( PRINT_WARNING, "WARNING: invalid alphaFunc name '%s' in shader '%s'\n", funcname, shader.name );
return 0;
}
/*
===============
NameToSrcBlendMode
===============
*/
static int NameToSrcBlendMode( const char *name )
{
if ( !Q_stricmp( name, "GL_ONE" ) )
{
return GLS_SRCBLEND_ONE;
}
else if ( !Q_stricmp( name, "GL_ZERO" ) )
{
return GLS_SRCBLEND_ZERO;
}
else if ( !Q_stricmp( name, "GL_DST_COLOR" ) )
{
return GLS_SRCBLEND_DST_COLOR;
}
else if ( !Q_stricmp( name, "GL_ONE_MINUS_DST_COLOR" ) )
{
return GLS_SRCBLEND_ONE_MINUS_DST_COLOR;
}
else if ( !Q_stricmp( name, "GL_SRC_ALPHA" ) )
{
return GLS_SRCBLEND_SRC_ALPHA;
}
else if ( !Q_stricmp( name, "GL_ONE_MINUS_SRC_ALPHA" ) )
{
return GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA;
}
else if ( !Q_stricmp( name, "GL_DST_ALPHA" ) )
{
return GLS_SRCBLEND_DST_ALPHA;
}
else if ( !Q_stricmp( name, "GL_ONE_MINUS_DST_ALPHA" ) )
{
return GLS_SRCBLEND_ONE_MINUS_DST_ALPHA;
}
else if ( !Q_stricmp( name, "GL_SRC_ALPHA_SATURATE" ) )
{
return GLS_SRCBLEND_ALPHA_SATURATE;
}
ri.Printf( PRINT_WARNING, "WARNING: unknown blend mode '%s' in shader '%s', substituting GL_ONE\n", name, shader.name );
return GLS_SRCBLEND_ONE;
}
/*
===============
NameToDstBlendMode
===============
*/
static int NameToDstBlendMode( const char *name )
{
if ( !Q_stricmp( name, "GL_ONE" ) )
{
return GLS_DSTBLEND_ONE;
}
else if ( !Q_stricmp( name, "GL_ZERO" ) )
{
return GLS_DSTBLEND_ZERO;
}
else if ( !Q_stricmp( name, "GL_SRC_ALPHA" ) )
{
return GLS_DSTBLEND_SRC_ALPHA;
}
else if ( !Q_stricmp( name, "GL_ONE_MINUS_SRC_ALPHA" ) )
{
return GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA;
}
else if ( !Q_stricmp( name, "GL_DST_ALPHA" ) )
{
return GLS_DSTBLEND_DST_ALPHA;
}
else if ( !Q_stricmp( name, "GL_ONE_MINUS_DST_ALPHA" ) )
{
return GLS_DSTBLEND_ONE_MINUS_DST_ALPHA;
}
else if ( !Q_stricmp( name, "GL_SRC_COLOR" ) )
{
return GLS_DSTBLEND_SRC_COLOR;
}
else if ( !Q_stricmp( name, "GL_ONE_MINUS_SRC_COLOR" ) )
{
return GLS_DSTBLEND_ONE_MINUS_SRC_COLOR;
}
ri.Printf( PRINT_WARNING, "WARNING: unknown blend mode '%s' in shader '%s', substituting GL_ONE\n", name, shader.name );
return GLS_DSTBLEND_ONE;
}
/*
===============
NameToGenFunc
===============
*/
static genFunc_t NameToGenFunc( const char *funcname )
{
if ( !Q_stricmp( funcname, "sin" ) )
{
return GF_SIN;
}
else if ( !Q_stricmp( funcname, "square" ) )
{
return GF_SQUARE;
}
else if ( !Q_stricmp( funcname, "triangle" ) )
{
return GF_TRIANGLE;
}
else if ( !Q_stricmp( funcname, "sawtooth" ) )
{
return GF_SAWTOOTH;
}
else if ( !Q_stricmp( funcname, "inversesawtooth" ) )
{
return GF_INVERSE_SAWTOOTH;
}
else if ( !Q_stricmp( funcname, "noise" ) )
{
return GF_NOISE;
}
else if ( !Q_stricmp( funcname, "random" ) )
{
return GF_RAND;
}
ri.Printf( PRINT_WARNING, "WARNING: invalid genfunc name '%s' in shader '%s'\n", funcname, shader.name );
return GF_SIN;
}
/*
===================
ParseWaveForm
===================
*/
static void ParseWaveForm( const char **text, waveForm_t *wave )
{
char *token;
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing waveform parm in shader '%s'\n", shader.name );
return;
}
wave->func = NameToGenFunc( token );
// BASE, AMP, PHASE, FREQ
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing waveform parm in shader '%s'\n", shader.name );
return;
}
wave->base = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing waveform parm in shader '%s'\n", shader.name );
return;
}
wave->amplitude = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing waveform parm in shader '%s'\n", shader.name );
return;
}
wave->phase = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing waveform parm in shader '%s'\n", shader.name );
return;
}
wave->frequency = atof( token );
}
/*
===================
ParseTexMod
===================
*/
static void ParseTexMod( const char *_text, shaderStage_t *stage )
{
const char *token;
const char **text = &_text;
texModInfo_t *tmi;
if ( stage->bundle[0].numTexMods == TR_MAX_TEXMODS ) {
ri.Error( ERR_DROP, "ERROR: too many tcMod stages in shader '%s'\n", shader.name );
return;
}
tmi = &stage->bundle[0].texMods[stage->bundle[0].numTexMods];
stage->bundle[0].numTexMods++;
token = COM_ParseExt( text, qfalse );
//
// turb
//
if ( !Q_stricmp( token, "turb" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing tcMod turb parms in shader '%s'\n", shader.name );
return;
}
tmi->wave.base = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing tcMod turb in shader '%s'\n", shader.name );
return;
}
tmi->wave.amplitude = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing tcMod turb in shader '%s'\n", shader.name );
return;
}
tmi->wave.phase = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing tcMod turb in shader '%s'\n", shader.name );
return;
}
tmi->wave.frequency = atof( token );
tmi->type = TMOD_TURBULENT;
}
//
// scale
//
else if ( !Q_stricmp( token, "scale" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing scale parms in shader '%s'\n", shader.name );
return;
}
tmi->scale[0] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing scale parms in shader '%s'\n", shader.name );
return;
}
tmi->scale[1] = atof( token );
tmi->type = TMOD_SCALE;
}
//
// scroll
//
else if ( !Q_stricmp( token, "scroll" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing scale scroll parms in shader '%s'\n", shader.name );
return;
}
tmi->scroll[0] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing scale scroll parms in shader '%s'\n", shader.name );
return;
}
tmi->scroll[1] = atof( token );
tmi->type = TMOD_SCROLL;
}
//
// stretch
//
else if ( !Q_stricmp( token, "stretch" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing stretch parms in shader '%s'\n", shader.name );
return;
}
tmi->wave.func = NameToGenFunc( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing stretch parms in shader '%s'\n", shader.name );
return;
}
tmi->wave.base = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing stretch parms in shader '%s'\n", shader.name );
return;
}
tmi->wave.amplitude = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing stretch parms in shader '%s'\n", shader.name );
return;
}
tmi->wave.phase = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing stretch parms in shader '%s'\n", shader.name );
return;
}
tmi->wave.frequency = atof( token );
tmi->type = TMOD_STRETCH;
}
//
// transform
//
else if ( !Q_stricmp( token, "transform" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing transform parms in shader '%s'\n", shader.name );
return;
}
tmi->matrix[0][0] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing transform parms in shader '%s'\n", shader.name );
return;
}
tmi->matrix[0][1] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing transform parms in shader '%s'\n", shader.name );
return;
}
tmi->matrix[1][0] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing transform parms in shader '%s'\n", shader.name );
return;
}
tmi->matrix[1][1] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing transform parms in shader '%s'\n", shader.name );
return;
}
tmi->translate[0] = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing transform parms in shader '%s'\n", shader.name );
return;
}
tmi->translate[1] = atof( token );
tmi->type = TMOD_TRANSFORM;
}
//
// rotate
//
else if ( !Q_stricmp( token, "rotate" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing tcMod rotate parms in shader '%s'\n", shader.name );
return;
}
tmi->rotateSpeed = atof( token );
tmi->type = TMOD_ROTATE;
}
//
// entityTranslate
//
else if ( !Q_stricmp( token, "entityTranslate" ) )
{
tmi->type = TMOD_ENTITY_TRANSLATE;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown tcMod '%s' in shader '%s'\n", token, shader.name );
}
}
/*
/////===== Part of the VERTIGON system =====/////
===================
ParseSurfaceSprites
===================
*/
// surfaceSprites <type> <width> <height> <density> <fadedist>
//
// NOTE: This parsing function used to be 12 pages long and very complex. The new version of surfacesprites
// utilizes optional parameters parsed in ParseSurfaceSpriteOptional.
static void ParseSurfaceSprites( const char *_text, shaderStage_t *stage )
{
const char *token;
const char **text = &_text;
float width, height, density, fadedist;
int sstype=SURFSPRITE_NONE;
//
// spritetype
//
token = COM_ParseExt( text, qfalse );
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfaceSprites params in shader '%s'\n", shader.name );
return;
}
if (!Q_stricmp(token, "vertical"))
{
sstype = SURFSPRITE_VERTICAL;
}
else if (!Q_stricmp(token, "oriented"))
{
sstype = SURFSPRITE_ORIENTED;
}
else if (!Q_stricmp(token, "effect"))
{
sstype = SURFSPRITE_EFFECT;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: invalid type in shader '%s'\n", shader.name );
return;
}
//
// width
//
token = COM_ParseExt( text, qfalse );
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfaceSprites params in shader '%s'\n", shader.name );
return;
}
width=atof(token);
if (width <= 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid width in shader '%s'\n", shader.name );
return;
}
//
// height
//
token = COM_ParseExt( text, qfalse );
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfaceSprites params in shader '%s'\n", shader.name );
return;
}
height=atof(token);
if (height <= 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid height in shader '%s'\n", shader.name );
return;
}
//
// density
//
token = COM_ParseExt( text, qfalse );
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfaceSprites params in shader '%s'\n", shader.name );
return;
}
density=atof(token);
if (density <= 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid density in shader '%s'\n", shader.name );
return;
}
//
// fadedist
//
token = COM_ParseExt( text, qfalse );
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfaceSprites params in shader '%s'\n", shader.name );
return;
}
fadedist=atof(token);
if (fadedist < 32)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid fadedist in shader '%s'\n", shader.name );
return;
}
// These are all set by the command lines.
stage->ss.surfaceSpriteType = sstype;
stage->ss.width = width;
stage->ss.height = height;
stage->ss.density = density;
stage->ss.fadeDist = fadedist;
// These are defaults that can be overwritten.
stage->ss.fadeMax = fadedist*1.33;
stage->ss.fadeScale = 0.0;
stage->ss.wind = 0.0;
stage->ss.windIdle = 0.0;
stage->ss.variance[0] = 0.0;
stage->ss.variance[1] = 0.0;
stage->ss.facing = SURFSPRITE_FACING_NORMAL;
// A vertical parameter that needs a default regardless
stage->ss.vertSkew;
// These are effect parameters that need defaults nonetheless.
stage->ss.fxDuration = 1000; // 1 second
stage->ss.fxGrow[0] = 0.0;
stage->ss.fxGrow[1] = 0.0;
stage->ss.fxAlphaStart = 1.0;
stage->ss.fxAlphaEnd = 0.0;
shader.needsNormal = qtrue;
}
/*
/////===== Part of the VERTIGON system =====/////
===========================
ParseSurfaceSpritesOptional
===========================
*/
//
// ssFademax <fademax>
// ssFadescale <fadescale>
// ssVariance <varwidth> <varheight>
// ssHangdown
// ssAnyangle
// ssFaceup
// ssWind <wind>
// ssWindIdle <windidle>
// ssVertSkew <skew>
// ssFXDuration <duration>
// ssFXGrow <growwidth> <growheight>
// ssFXAlphaRange <alphastart> <startend>
// ssFXWeather
//
// Optional parameters that will override the defaults set in the surfacesprites command above.
//
static void ParseSurfaceSpritesOptional( const char *param, const char *_text, shaderStage_t *stage )
{
const char *token;
const char **text = &_text;
float value;
//
// fademax
//
if (!Q_stricmp(param, "ssFademax"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite fademax in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value <= stage->ss.fadeDist)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite fademax in shader '%s'\n", shader.name );
return;
}
stage->ss.fadeMax=value;
return;
}
//
// fadescale
//
if (!Q_stricmp(param, "ssFadescale"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite fadescale in shader '%s'\n", shader.name );
return;
}
value = atof(token);
stage->ss.fadeScale=value;
return;
}
//
// variance
//
if (!Q_stricmp(param, "ssVariance"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite variance width in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite variance width in shader '%s'\n", shader.name );
return;
}
stage->ss.variance[0]=value;
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite variance height in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite variance height in shader '%s'\n", shader.name );
return;
}
stage->ss.variance[1]=value;
return;
}
//
// hangdown
//
if (!Q_stricmp(param, "ssHangdown"))
{
if (stage->ss.facing != SURFSPRITE_FACING_NORMAL)
{
ri.Printf( PRINT_WARNING, "WARNING: Hangdown facing overrides previous facing in shader '%s'\n", shader.name );
return;
}
stage->ss.facing=SURFSPRITE_FACING_DOWN;
return;
}
//
// anyangle
//
if (!Q_stricmp(param, "ssAnyangle"))
{
if (stage->ss.facing != SURFSPRITE_FACING_NORMAL)
{
ri.Printf( PRINT_WARNING, "WARNING: Anyangle facing overrides previous facing in shader '%s'\n", shader.name );
return;
}
stage->ss.facing=SURFSPRITE_FACING_ANY;
return;
}
//
// faceup
//
if (!Q_stricmp(param, "ssFaceup"))
{
if (stage->ss.facing != SURFSPRITE_FACING_NORMAL)
{
ri.Printf( PRINT_WARNING, "WARNING: Faceup facing overrides previous facing in shader '%s'\n", shader.name );
return;
}
stage->ss.facing=SURFSPRITE_FACING_UP;
return;
}
//
// wind
//
if (!Q_stricmp(param, "ssWind"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite wind in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0.0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite wind in shader '%s'\n", shader.name );
return;
}
stage->ss.wind=value;
if (stage->ss.windIdle <= 0)
{ // Also override the windidle, it usually is the same as wind
stage->ss.windIdle = value;
}
return;
}
//
// windidle
//
if (!Q_stricmp(param, "ssWindidle"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite windidle in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0.0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite windidle in shader '%s'\n", shader.name );
return;
}
stage->ss.windIdle=value;
return;
}
//
// vertskew
//
if (!Q_stricmp(param, "ssVertskew"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite vertskew in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0.0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite vertskew in shader '%s'\n", shader.name );
return;
}
stage->ss.vertSkew=value;
return;
}
//
// fxduration
//
if (!Q_stricmp(param, "ssFXDuration"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite duration in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value <= 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite duration in shader '%s'\n", shader.name );
return;
}
stage->ss.fxDuration=value;
return;
}
//
// fxgrow
//
if (!Q_stricmp(param, "ssFXGrow"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite grow width in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite grow width in shader '%s'\n", shader.name );
return;
}
stage->ss.fxGrow[0]=value;
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite grow height in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite grow height in shader '%s'\n", shader.name );
return;
}
stage->ss.fxGrow[1]=value;
return;
}
//
// fxalpharange
//
if (!Q_stricmp(param, "ssFXAlphaRange"))
{
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite fxalpha start in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0 || value > 1.0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite fxalpha start in shader '%s'\n", shader.name );
return;
}
stage->ss.fxAlphaStart=value;
token = COM_ParseExt( text, qfalse);
if (token[0]==0)
{
ri.Printf( PRINT_WARNING, "WARNING: missing surfacesprite fxalpha end in shader '%s'\n", shader.name );
return;
}
value = atof(token);
if (value < 0 || value > 1.0)
{
ri.Printf( PRINT_WARNING, "WARNING: invalid surfacesprite fxalpha end in shader '%s'\n", shader.name );
return;
}
stage->ss.fxAlphaEnd=value;
return;
}
//
// fxweather
//
if (!Q_stricmp(param, "ssFXWeather"))
{
if (stage->ss.surfaceSpriteType != SURFSPRITE_EFFECT)
{
ri.Printf( PRINT_WARNING, "WARNING: weather applied to non-effect surfacesprite in shader '%s'\n", shader.name );
return;
}
stage->ss.surfaceSpriteType = SURFSPRITE_WEATHERFX;
return;
}
//
// invalid ss command.
//
ri.Printf( PRINT_WARNING, "WARNING: invalid optional surfacesprite param '%s' in shader '%s'\n", param, shader.name );
return;
}
/*
===================
ParseStage
===================
*/
static qboolean ParseStage( shaderStage_t *stage, const char **text )
{
char *token;
int depthMaskBits = GLS_DEPTHMASK_TRUE, blendSrcBits = 0, blendDstBits = 0, atestBits = 0, depthFuncBits = 0;
qboolean depthMaskExplicit = qfalse;
stage->active = qtrue;
while ( 1 )
{
token = COM_ParseExt( text, qtrue );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: no matching '}' found\n" );
return qfalse;
}
if ( token[0] == '}' )
{
break;
}
//
// map <name>
//
else if ( !Q_stricmp( token, "map" ) )
{
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameter for 'map' keyword in shader '%s'\n", shader.name );
return qfalse;
}
if ( !Q_stricmp( token, "$whiteimage" ) )
{
stage->bundle[0].image[0] = tr.whiteImage;
continue;
}
else if ( !Q_stricmp( token, "$lightmap" ) )
{
stage->bundle[0].isLightmap = qtrue;
if ( shader.lightmapIndex[0] < 0 ) {
stage->bundle[0].image[0] = tr.whiteImage;
} else {
stage->bundle[0].image[0] = tr.lightmaps[shader.lightmapIndex[0]];
}
continue;
}
else
{
#ifdef DEDICATED
stage->bundle[0].image[0] = NULL;
return qfalse;
#else
stage->bundle[0].image[0] = R_FindImageFile( token, (qboolean)!shader.noMipMaps, (qboolean)!shader.noPicMip, (qboolean)!shader.noTC, GL_REPEAT );
if ( !stage->bundle[0].image[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: R_FindImageFile could not find '%s' in shader '%s'\n", token, shader.name );
return qfalse;
}
#endif // !DEDICATED
}
}
//
// clampmap <name>
//
else if ( !Q_stricmp( token, "clampmap" ) )
{
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameter for 'clampmap' keyword in shader '%s'\n", shader.name );
return qfalse;
}
#ifdef DEDICATED
stage->bundle[0].image[0] = NULL;
return qfalse;
#else
stage->bundle[0].image[0] = R_FindImageFile( token, (qboolean)!shader.noMipMaps, (qboolean)!shader.noPicMip, (qboolean)!shader.noTC, GL_CLAMP );
if ( !stage->bundle[0].image[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: R_FindImageFile could not find '%s' in shader '%s'\n", token, shader.name );
return qfalse;
}
#endif
}
//
// animMap <frequency> <image1> .... <imageN>
//
else if ( !Q_stricmp( token, "animMap" ) || !Q_stricmp( token, "clampanimMap" ) || !Q_stricmp( token, "oneshotanimMap" ))
{
qboolean bClamp = (qboolean)!Q_stricmp( token, "clampanimMap" );
qboolean oneShot = (qboolean)!Q_stricmp( token, "oneshotanimMap" );
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameter for '%s' keyword in shader '%s'\n", (bClamp ? "animMap":"clampanimMap"), shader.name );
return qfalse;
}
stage->bundle[0].imageAnimationSpeed = atof( token );
stage->bundle[0].oneShotAnimMap = oneShot;
// parse up to MAX_IMAGE_ANIMATIONS animations
while ( 1 ) {
int num;
token = COM_ParseExt( text, qfalse );
if ( !token[0] ) {
break;
}
num = stage->bundle[0].numImageAnimations;
if ( num < MAX_IMAGE_ANIMATIONS ) {
#ifdef DEDICATED
stage->bundle[0].image[num] = NULL;
return qfalse;
#else
stage->bundle[0].image[num] = R_FindImageFile( token, (qboolean)!shader.noMipMaps, (qboolean)!shader.noPicMip, (qboolean)!shader.noTC, bClamp?GL_CLAMP:GL_REPEAT );
if ( !stage->bundle[0].image[num] )
{
ri.Printf( PRINT_WARNING, "WARNING: R_FindImageFile could not find '%s' in shader '%s'\n", token, shader.name );
return qfalse;
}
stage->bundle[0].numImageAnimations++;
#endif
}
}
}
else if ( !Q_stricmp( token, "videoMap" ) )
{
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameter for 'videoMmap' keyword in shader '%s'\n", shader.name );
return qfalse;
}
stage->bundle[0].videoMapHandle = ri.CIN_PlayCinematic( token, 0, 0, 256, 256, (CIN_loop | CIN_silent | CIN_shader));
if (stage->bundle[0].videoMapHandle != -1) {
stage->bundle[0].isVideoMap = qtrue;
stage->bundle[0].image[0] = tr.scratchImage[stage->bundle[0].videoMapHandle];
}
}
//
// alphafunc <func>
//
else if ( !Q_stricmp( token, "alphaFunc" ) )
{
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameter for 'alphaFunc' keyword in shader '%s'\n", shader.name );
return qfalse;
}
atestBits = NameToAFunc( token );
}
//
// depthFunc <func>
//
else if ( !Q_stricmp( token, "depthfunc" ) )
{
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameter for 'depthfunc' keyword in shader '%s'\n", shader.name );
return qfalse;
}
if ( !Q_stricmp( token, "lequal" ) )
{
depthFuncBits = 0;
}
else if ( !Q_stricmp( token, "equal" ) )
{
depthFuncBits = GLS_DEPTHFUNC_EQUAL;
}
else if ( !Q_stricmp( token, "disable" ) )
{
depthFuncBits = GLS_DEPTHTEST_DISABLE;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown depthfunc '%s' in shader '%s'\n", token, shader.name );
continue;
}
}
//
// detail
//
else if ( !Q_stricmp( token, "detail" ) )
{
stage->isDetail = qtrue;
}
//
// blendfunc <srcFactor> <dstFactor>
// or blendfunc <add|filter|blend>
//
else if ( !Q_stricmp( token, "blendfunc" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parm for blendFunc in shader '%s'\n", shader.name );
continue;
}
// check for "simple" blends first
if ( !Q_stricmp( token, "add" ) ) {
blendSrcBits = GLS_SRCBLEND_ONE;
blendDstBits = GLS_DSTBLEND_ONE;
} else if ( !Q_stricmp( token, "filter" ) ) {
blendSrcBits = GLS_SRCBLEND_DST_COLOR;
blendDstBits = GLS_DSTBLEND_ZERO;
} else if ( !Q_stricmp( token, "blend" ) ) {
blendSrcBits = GLS_SRCBLEND_SRC_ALPHA;
blendDstBits = GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA;
} else {
// complex double blends
blendSrcBits = NameToSrcBlendMode( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parm for blendFunc in shader '%s'\n", shader.name );
continue;
}
blendDstBits = NameToDstBlendMode( token );
}
// clear depth mask for blended surfaces
if ( !depthMaskExplicit )
{
depthMaskBits = 0;
}
}
//
// rgbGen
//
else if ( !Q_stricmp( token, "rgbGen" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameters for rgbGen in shader '%s'\n", shader.name );
continue;
}
if ( !Q_stricmp( token, "wave" ) )
{
ParseWaveForm( text, &stage->rgbWave );
stage->rgbGen = CGEN_WAVEFORM;
}
else if ( !Q_stricmp( token, "const" ) )
{
vec3_t color;
ParseVector( text, 3, color );
stage->constantColor[0] = 255 * color[0];
stage->constantColor[1] = 255 * color[1];
stage->constantColor[2] = 255 * color[2];
stage->rgbGen = CGEN_CONST;
}
else if ( !Q_stricmp( token, "identity" ) )
{
stage->rgbGen = CGEN_IDENTITY;
}
else if ( !Q_stricmp( token, "identityLighting" ) )
{
stage->rgbGen = CGEN_IDENTITY_LIGHTING;
}
else if ( !Q_stricmp( token, "entity" ) )
{
stage->rgbGen = CGEN_ENTITY;
}
else if ( !Q_stricmp( token, "oneMinusEntity" ) )
{
stage->rgbGen = CGEN_ONE_MINUS_ENTITY;
}
else if ( !Q_stricmp( token, "vertex" ) )
{
stage->rgbGen = CGEN_VERTEX;
if ( stage->alphaGen == 0 ) {
stage->alphaGen = AGEN_VERTEX;
}
}
else if ( !Q_stricmp( token, "exactVertex" ) )
{
stage->rgbGen = CGEN_EXACT_VERTEX;
}
else if ( !Q_stricmp( token, "lightingDiffuse" ) )
{
stage->rgbGen = CGEN_LIGHTING_DIFFUSE;
}
else if ( !Q_stricmp( token, "oneMinusVertex" ) )
{
stage->rgbGen = CGEN_ONE_MINUS_VERTEX;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown rgbGen parameter '%s' in shader '%s'\n", token, shader.name );
continue;
}
}
//
// alphaGen
//
else if ( !Q_stricmp( token, "alphaGen" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parameters for alphaGen in shader '%s'\n", shader.name );
continue;
}
if ( !Q_stricmp( token, "wave" ) )
{
ParseWaveForm( text, &stage->alphaWave );
stage->alphaGen = AGEN_WAVEFORM;
}
else if ( !Q_stricmp( token, "const" ) )
{
token = COM_ParseExt( text, qfalse );
stage->constantColor[3] = 255 * atof( token );
stage->alphaGen = AGEN_CONST;
}
else if ( !Q_stricmp( token, "identity" ) )
{
stage->alphaGen = AGEN_IDENTITY;
}
else if ( !Q_stricmp( token, "entity" ) )
{
stage->alphaGen = AGEN_ENTITY;
}
else if ( !Q_stricmp( token, "oneMinusEntity" ) )
{
stage->alphaGen = AGEN_ONE_MINUS_ENTITY;
}
else if ( !Q_stricmp( token, "vertex" ) )
{
stage->alphaGen = AGEN_VERTEX;
}
else if ( !Q_stricmp( token, "lightingSpecular" ) )
{
stage->alphaGen = AGEN_LIGHTING_SPECULAR;
}
else if ( !Q_stricmp( token, "oneMinusVertex" ) )
{
stage->alphaGen = AGEN_ONE_MINUS_VERTEX;
}
else if ( !Q_stricmp( token, "portal" ) )
{
stage->alphaGen = AGEN_PORTAL;
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
shader.portalRange = 256;
ri.Printf( PRINT_WARNING, "WARNING: missing range parameter for alphaGen portal in shader '%s', defaulting to 256\n", shader.name );
}
else
{
shader.portalRange = atof( token );
}
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown alphaGen parameter '%s' in shader '%s'\n", token, shader.name );
continue;
}
}
//
// tcGen <function>
//
else if ( !Q_stricmp(token, "texgen") || !Q_stricmp( token, "tcGen" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing texgen parm in shader '%s'\n", shader.name );
continue;
}
if ( !Q_stricmp( token, "environment" ) )
{
stage->bundle[0].tcGen = TCGEN_ENVIRONMENT_MAPPED;
}
else if ( !Q_stricmp( token, "lightmap" ) )
{
stage->bundle[0].tcGen = TCGEN_LIGHTMAP;
}
else if ( !Q_stricmp( token, "texture" ) || !Q_stricmp( token, "base" ) )
{
stage->bundle[0].tcGen = TCGEN_TEXTURE;
}
else if ( !Q_stricmp( token, "vector" ) )
{
ParseVector( text, 3, stage->bundle[0].tcGenVectors[0] );
ParseVector( text, 3, stage->bundle[0].tcGenVectors[1] );
stage->bundle[0].tcGen = TCGEN_VECTOR;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown texgen parm in shader '%s'\n", shader.name );
}
}
//
// tcMod <type> <...>
//
else if ( !Q_stricmp( token, "tcMod" ) )
{
char buffer[1024] = "";
while ( 1 )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
break;
strcat( buffer, token );
strcat( buffer, " " );
}
ParseTexMod( buffer, stage );
continue;
}
//
// depthmask
//
else if ( !Q_stricmp( token, "depthwrite" ) )
{
depthMaskBits = GLS_DEPTHMASK_TRUE;
depthMaskExplicit = qtrue;
continue;
}
//
// surfaceSprites <type> ...
//
else if ( !Q_stricmp( token, "surfaceSprites" ) )
{
char buffer[1024] = "";
while ( 1 )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
break;
strcat( buffer, token );
strcat( buffer, " " );
}
ParseSurfaceSprites( buffer, stage );
continue;
}
//
// ssFademax <fademax>
// ssFadescale <fadescale>
// ssVariance <varwidth> <varheight>
// ssHangdown
// ssAnyangle
// ssFaceup
// ssWind <wind>
// ssWindIdle <windidle>
// ssDuration <duration>
// ssGrow <growwidth> <growheight>
// ssWeather
//
else if (!Q_stricmpn(token, "ss", 2)) // <--- NOTE ONLY COMPARING FIRST TWO LETTERS
{
char buffer[1024] = "";
char param[128];
strcpy(param,token);
while ( 1 )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
break;
strcat( buffer, token );
strcat( buffer, " " );
}
ParseSurfaceSpritesOptional( param, buffer, stage );
continue;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown parameter '%s' in shader '%s'\n", token, shader.name );
return qfalse;
}
}
//
// if cgen isn't explicitly specified, use either identity or identitylighting
//
if ( stage->rgbGen == CGEN_BAD ) {
if ( //blendSrcBits == 0 ||
blendSrcBits == GLS_SRCBLEND_ONE ||
blendSrcBits == GLS_SRCBLEND_SRC_ALPHA ) {
stage->rgbGen = CGEN_IDENTITY_LIGHTING;
} else {
stage->rgbGen = CGEN_IDENTITY;
}
}
//
// implicitly assume that a GL_ONE GL_ZERO blend mask disables blending
//
if ( ( blendSrcBits == GLS_SRCBLEND_ONE ) &&
( blendDstBits == GLS_DSTBLEND_ZERO ) )
{
blendDstBits = blendSrcBits = 0;
depthMaskBits = GLS_DEPTHMASK_TRUE;
}
// decide which agens we can skip
if ( stage->alphaGen == CGEN_IDENTITY ) {
if ( stage->rgbGen == CGEN_IDENTITY
|| stage->rgbGen == CGEN_LIGHTING_DIFFUSE ) {
stage->alphaGen = AGEN_SKIP;
}
}
//
// compute state bits
//
stage->stateBits = depthMaskBits |
blendSrcBits | blendDstBits |
atestBits |
depthFuncBits;
return qtrue;
}
/*
===============
ParseDeform
deformVertexes wave <spread> <waveform> <base> <amplitude> <phase> <frequency>
deformVertexes normal <frequency> <amplitude>
deformVertexes move <vector> <waveform> <base> <amplitude> <phase> <frequency>
deformVertexes bulge <bulgeWidth> <bulgeHeight> <bulgeSpeed>
deformVertexes projectionShadow
deformVertexes autoSprite
deformVertexes autoSprite2
deformVertexes text[0-7]
===============
*/
static void ParseDeform( const char **text ) {
char *token;
deformStage_t *ds;
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deform parm in shader '%s'\n", shader.name );
return;
}
if ( shader.numDeforms == MAX_SHADER_DEFORMS ) {
ri.Printf( PRINT_WARNING, "WARNING: MAX_SHADER_DEFORMS in '%s'\n", shader.name );
return;
}
ds = &shader.deforms[ shader.numDeforms ];
shader.numDeforms++;
if ( !Q_stricmp( token, "projectionShadow" ) ) {
ds->deformation = DEFORM_PROJECTION_SHADOW;
return;
}
if ( !Q_stricmp( token, "autosprite" ) ) {
ds->deformation = DEFORM_AUTOSPRITE;
return;
}
if ( !Q_stricmp( token, "autosprite2" ) ) {
ds->deformation = DEFORM_AUTOSPRITE2;
return;
}
if ( !Q_stricmpn( token, "text", 4 ) ) {
int n;
n = token[4] - '0';
if ( n < 0 || n > 7 ) {
n = 0;
}
ds->deformation = (deform_t)(DEFORM_TEXT0 + n);
return;
}
if ( !Q_stricmp( token, "bulge" ) ) {
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes bulge parm in shader '%s'\n", shader.name );
return;
}
ds->bulgeWidth = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes bulge parm in shader '%s'\n", shader.name );
return;
}
ds->bulgeHeight = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes bulge parm in shader '%s'\n", shader.name );
return;
}
ds->bulgeSpeed = atof( token );
ds->deformation = DEFORM_BULGE;
return;
}
if ( !Q_stricmp( token, "wave" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes parm in shader '%s'\n", shader.name );
return;
}
if ( atof( token ) != 0 )
{
ds->deformationSpread = 1.0f / atof( token );
}
else
{
ds->deformationSpread = 100.0f;
ri.Printf( PRINT_WARNING, "WARNING: illegal div value of 0 in deformVertexes command for shader '%s'\n", shader.name );
}
ParseWaveForm( text, &ds->deformationWave );
ds->deformation = DEFORM_WAVE;
return;
}
if ( !Q_stricmp( token, "normal" ) )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes parm in shader '%s'\n", shader.name );
return;
}
ds->deformationWave.amplitude = atof( token );
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes parm in shader '%s'\n", shader.name );
return;
}
ds->deformationWave.frequency = atof( token );
ds->deformation = DEFORM_NORMALS;
return;
}
if ( !Q_stricmp( token, "move" ) ) {
int i;
for ( i = 0 ; i < 3 ; i++ ) {
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 ) {
ri.Printf( PRINT_WARNING, "WARNING: missing deformVertexes parm in shader '%s'\n", shader.name );
return;
}
ds->moveVector[i] = atof( token );
}
ParseWaveForm( text, &ds->deformationWave );
ds->deformation = DEFORM_MOVE;
return;
}
ri.Printf( PRINT_WARNING, "WARNING: unknown deformVertexes subtype '%s' found in shader '%s'\n", token, shader.name );
}
/*
===============
ParseSkyParms
skyParms <outerbox> <cloudheight> <innerbox>
===============
*/
static void ParseSkyParms( const char **text ) {
char *token;
const char *suf[6] = {"rt", "lf", "bk", "ft", "up", "dn"};
char pathname[MAX_QPATH];
int i;
// outerbox
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 ) {
ri.Printf( PRINT_WARNING, "WARNING: 'skyParms' missing parameter in shader '%s'\n", shader.name );
return;
}
if ( strcmp( token, "-" ) ) {
for (i=0 ; i<6 ; i++) {
Com_sprintf( pathname, sizeof(pathname), "%s_%s", token, suf[i] );
#ifdef DEDICATED
shader.sky.outerbox[i] = NULL;
#else
shader.sky.outerbox[i] = R_FindImageFile( ( char * ) pathname, qtrue, qtrue, (qboolean)!shader.noTC, GL_CLAMP );
if ( !shader.sky.outerbox[i] ) {
if (i) {
shader.sky.outerbox[i] = shader.sky.outerbox[i-1];//not found, so let's use the previous image
}else{
shader.sky.outerbox[i] = tr.defaultImage;
}
}
#endif
}
}
// cloudheight
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 ) {
ri.Printf( PRINT_WARNING, "WARNING: 'skyParms' missing parameter in shader '%s'\n", shader.name );
return;
}
shader.sky.cloudHeight = atof( token );
if ( !shader.sky.cloudHeight ) {
shader.sky.cloudHeight = 512;
}
#ifndef DEDICATED
R_InitSkyTexCoords( shader.sky.cloudHeight );
#endif
// innerbox
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 ) {
ri.Printf( PRINT_WARNING, "WARNING: 'skyParms' missing parameter in shader '%s'\n", shader.name );
return;
}
if ( strcmp( token, "-" ) ) {
for (i=0 ; i<6 ; i++) {
Com_sprintf( pathname, sizeof(pathname), "%s_%s", token, suf[i] );
#ifdef DEDICATED
shader.sky.innerbox[i] = NULL;
#else
shader.sky.innerbox[i] = R_FindImageFile( ( char * ) pathname, qtrue, qtrue, (qboolean)!shader.noTC, GL_CLAMP );
if ( !shader.sky.innerbox[i] ) {
if (i) {
shader.sky.innerbox[i] = shader.sky.innerbox[i];//not found, so let's use the previous
}else{
shader.sky.innerbox[i] = tr.defaultImage;
}
}
#endif // !DEDICATED
}
}
shader.isSky = qtrue;
}
/*
=================
ParseSort
=================
*/
static void ParseSort( const char **text ) {
char *token;
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 ) {
ri.Printf( PRINT_WARNING, "WARNING: missing sort parameter in shader '%s'\n", shader.name );
return;
}
if ( !Q_stricmp( token, "portal" ) ) {
shader.sort = SS_PORTAL;
} else if ( !Q_stricmp( token, "sky" ) ) {
shader.sort = SS_ENVIRONMENT;
} else if ( !Q_stricmp( token, "opaque" ) ) {
shader.sort = SS_OPAQUE;
} else if ( !Q_stricmp( token, "decal" ) ) {
shader.sort = SS_DECAL;
} else if ( !Q_stricmp( token, "seeThrough" ) ) {
shader.sort = SS_SEE_THROUGH;
} else if ( !Q_stricmp( token, "banner" ) ) {
shader.sort = SS_BANNER;
} else if ( !Q_stricmp( token, "additive" ) ) {
shader.sort = SS_BLEND1;
} else if ( !Q_stricmp( token, "nearest" ) ) {
shader.sort = SS_NEAREST;
} else if ( !Q_stricmp( token, "underwater" ) ) {
shader.sort = SS_UNDERWATER;
} else if ( !Q_stricmp( token, "inside" ) ) {
shader.sort = SS_INSIDE;
} else if ( !Q_stricmp( token, "mid_inside" ) ) {
shader.sort = SS_MID_INSIDE;
} else if ( !Q_stricmp( token, "middle" ) ) {
shader.sort = SS_MIDDLE;
} else if ( !Q_stricmp( token, "mid_outside" ) ) {
shader.sort = SS_MID_OUTSIDE;
} else if ( !Q_stricmp( token, "outside" ) ) {
shader.sort = SS_OUTSIDE;
}
else {
shader.sort = atof( token );
}
}
/*
=================
ParseMaterial
=================
*/
const char *materialNames[MATERIAL_LAST] =
{
MATERIALS
};
void ParseMaterial( const char **text )
{
char *token;
int i;
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing material in shader '%s'\n", shader.name );
return;
}
for(i = 0; i < MATERIAL_LAST; i++)
{
if ( !Q_stricmp( token, materialNames[i] ) )
{
shader.surfaceFlags |= i;
break;
}
}
}
// this table is also present in q3map
typedef struct {
char *name;
int clearSolid, surfaceFlags, contents;
} infoParm_t;
infoParm_t infoParms[] = {
// Game content Flags
{"nonsolid", ~CONTENTS_SOLID, 0, 0 }, // special hack to clear solid flag
{"nonopaque", ~CONTENTS_OPAQUE, 0, 0 }, // special hack to clear opaque flag
{"lava", ~CONTENTS_SOLID, 0, CONTENTS_LAVA }, // very damaging
{"slime", ~CONTENTS_SOLID, 0, CONTENTS_SLIME }, // mildly damaging
{"water", ~CONTENTS_SOLID, 0, CONTENTS_WATER },
{"fog", ~CONTENTS_SOLID, 0, CONTENTS_FOG}, // carves surfaces entering
{"shotclip", ~CONTENTS_SOLID, 0, CONTENTS_SHOTCLIP }, /* block shots, but not people */
{"playerclip", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_PLAYERCLIP }, /* block only the player */
{"monsterclip", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_MONSTERCLIP },
{"botclip", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_BOTCLIP }, /* for bots */
{"trigger", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_TRIGGER },
{"nodrop", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_NODROP }, // don't drop items or leave bodies (death fog, lava, etc)
{"terrain", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_TERRAIN }, /* use special terrain collsion */
{"ladder", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_LADDER }, // climb up in it like water
{"abseil", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_ABSEIL }, // can abseil down this brush
{"outside", ~(CONTENTS_SOLID|CONTENTS_OPAQUE),0,CONTENTS_OUTSIDE }, // volume is considered to be in the outside (i.e. not indoors)
{"detail", -1, 0, CONTENTS_DETAIL }, // don't include in structural bsp
{"trans", -1, 0, CONTENTS_TRANSLUCENT }, // surface has an alpha component
/* Game surface flags */
{"sky", -1, SURF_SKY, 0 }, /* emit light from an environment map */
{"slick", -1, SURF_SLICK, 0 },
{"nodamage", -1, SURF_NODAMAGE, 0 },
{"noimpact", -1, SURF_NOIMPACT, 0 }, /* don't make impact explosions or marks */
{"nomarks", -1, SURF_NOMARKS, 0 }, /* don't make impact marks, but still explode */
{"nodraw", -1, SURF_NODRAW, 0 }, /* don't generate a drawsurface (or a lightmap) */
{"nosteps", -1, SURF_NOSTEPS, 0 },
{"nodlight", -1, SURF_NODLIGHT, 0 }, /* don't ever add dynamic lights */
{"metalsteps", -1, SURF_METALSTEPS,0 },
{"nomiscents", -1, SURF_NOMISCENTS,0 }, /* No misc ents on this surface */
{"forcefield", -1, SURF_FORCEFIELD,0 },
};
/*
===============
ParseSurfaceParm
surfaceparm <name>
===============
*/
static void ParseSurfaceParm( const char **text ) {
char *token;
int numInfoParms = sizeof(infoParms) / sizeof(infoParms[0]);
int i;
token = COM_ParseExt( text, qfalse );
for ( i = 0 ; i < numInfoParms ; i++ ) {
if ( !Q_stricmp( token, infoParms[i].name ) ) {
shader.surfaceFlags |= infoParms[i].surfaceFlags;
shader.contentFlags |= infoParms[i].contents;
shader.contentFlags &= infoParms[i].clearSolid;
break;
}
}
}
/*
=================
ParseShader
The current text pointer is at the explicit text definition of the
shader. Parse it into the global shader variable. Later functions
will optimize it.
=================
*/
static qboolean ParseShader( const char **text )
{
char *token;
int s;
s = 0;
token = COM_ParseExt( text, qtrue );
if ( token[0] != '{' )
{
ri.Printf( PRINT_WARNING, "WARNING: expecting '{', found '%s' instead in shader '%s'\n", token, shader.name );
return qfalse;
}
while ( 1 )
{
token = COM_ParseExt( text, qtrue );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: no concluding '}' in shader %s\n", shader.name );
return qfalse;
}
// end of shader definition
if ( token[0] == '}' )
{
break;
}
// stage definition
else if ( token[0] == '{' )
{
if ( !ParseStage( &stages[s], text ) )
{
return qfalse;
}
stages[s].active = qtrue;
s++;
continue;
}
// skip stuff that only the QuakeEdRadient needs
else if ( !Q_stricmpn( token, "qer", 3 ) ) {
SkipRestOfLine( text );
continue;
}
// material deprecated as of 11 Jan 01
// material undeprecated as of 7 May 01 - q3map_material deprecated
else if ( !Q_stricmp( token, "material" ) || !Q_stricmp( token, "q3map_material" ) )
{
ParseMaterial( text );
}
// sun parms
else if ( !Q_stricmp( token, "sun" ) || !Q_stricmp( token, "q3map_sun" ) )
{
token = COM_ParseExt( text, qfalse );
tr.sunLight[0] = atof( token );
token = COM_ParseExt( text, qfalse );
tr.sunLight[1] = atof( token );
token = COM_ParseExt( text, qfalse );
tr.sunLight[2] = atof( token );
VectorNormalize( tr.sunLight );
token = COM_ParseExt( text, qfalse );
float a = atof( token );
VectorScale( tr.sunLight, a, tr.sunLight);
token = COM_ParseExt( text, qfalse );
a = atof( token );
a = a / 180 * M_PI;
token = COM_ParseExt( text, qfalse );
float b = atof( token );
b = b / 180 * M_PI;
tr.sunDirection[0] = cos( a ) * cos( b );
tr.sunDirection[1] = sin( a ) * cos( b );
tr.sunDirection[2] = sin( b );
}
// q3map_surfacelight deprecated as of 16 Jul 01
else if ( !Q_stricmp( token, "surfacelight" ) || !Q_stricmp( token, "q3map_surfacelight" ) )
{
token = COM_ParseExt( text, qfalse );
shader.surfaceLight = atoi( token );
}
else if ( !Q_stricmp( token, "lightColor" ) )
{
if ( !ParseVector( text, 3, shader.lightColor ) )
{
return qfalse;
}
}
else if ( !Q_stricmp( token, "deformvertexes" ) || !Q_stricmp( token, "deform" )) {
ParseDeform( text );
continue;
}
else if ( !Q_stricmp( token, "tesssize" ) ) {
SkipRestOfLine( text );
continue;
}
else if ( !Q_stricmp( token, "clampTime" ) ) {
token = COM_ParseExt( text, qfalse );
if (token[0]) {
shader.clampTime = atof(token);
}
}
// skip stuff that only the q3map needs
else if ( !Q_stricmpn( token, "q3map", 5 ) ) {
SkipRestOfLine( text );
continue;
}
// skip stuff that only q3map or the server needs
else if ( !Q_stricmp( token, "surfaceParm" ) ) {
ParseSurfaceParm( text );
continue;
}
// no mip maps
else if ( !Q_stricmp( token, "nomipmaps" ) )
{
shader.noMipMaps = qtrue;
shader.noPicMip = qtrue;
continue;
}
// no picmip adjustment
else if ( !Q_stricmp( token, "nopicmip" ) )
{
shader.noPicMip = qtrue;
continue;
}
else if ( !Q_stricmp( token, "noglfog" ) )
{
shader.fogPass = FP_NONE;
continue;
}
// polygonOffset
else if ( !Q_stricmp( token, "polygonOffset" ) )
{
shader.polygonOffset = qtrue;
continue;
}
else if ( !Q_stricmp( token, "noTC" ) )
{
shader.noTC = qtrue;
continue;
}
// entityMergable, allowing sprite surfaces from multiple entities
// to be merged into one batch. This is a savings for smoke
// puffs and blood, but can't be used for anything where the
// shader calcs (not the surface function) reference the entity color or scroll
else if ( !Q_stricmp( token, "entityMergable" ) )
{
shader.entityMergable = qtrue;
continue;
}
// fogParms
else if ( !Q_stricmp( token, "fogParms" ) )
{
if ( !ParseVector( text, 3, shader.fogParms.color ) ) {
return qfalse;
}
token = COM_ParseExt( text, qfalse );
if ( !token[0] )
{
ri.Printf( PRINT_WARNING, "WARNING: missing parm for 'fogParms' keyword in shader '%s'\n", shader.name );
continue;
}
shader.fogParms.depthForOpaque = atof( token );
// skip any old gradient directions
SkipRestOfLine( text );
continue;
}
// portal
else if ( !Q_stricmp(token, "portal") )
{
shader.sort = SS_PORTAL;
continue;
}
// skyparms <cloudheight> <outerbox> <innerbox>
else if ( !Q_stricmp( token, "skyparms" ) )
{
ParseSkyParms( text );
continue;
}
// light <value> determines flaring in q3map, not needed here
else if ( !Q_stricmp(token, "light") )
{
token = COM_ParseExt( text, qfalse );
continue;
}
// cull <face>
else if ( !Q_stricmp( token, "cull") )
{
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
{
ri.Printf( PRINT_WARNING, "WARNING: missing cull parms in shader '%s'\n", shader.name );
continue;
}
if ( !Q_stricmp( token, "none" ) || !Q_stricmp( token, "twosided" ) || !Q_stricmp( token, "disable" ) )
{
shader.cullType = CT_TWO_SIDED;
}
else if ( !Q_stricmp( token, "back" ) || !Q_stricmp( token, "backside" ) || !Q_stricmp( token, "backsided" ) )
{
shader.cullType = CT_BACK_SIDED;
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: invalid cull parm '%s' in shader '%s'\n", token, shader.name );
}
continue;
}
// sort
else if ( !Q_stricmp( token, "sort" ) )
{
ParseSort( text );
continue;
}
/*
Ghoul2 Insert Start
*/
//
// location hit mesh load
//
else if ( !Q_stricmp( token, "hitLocation" ) )
{
byte *buffer = 0;
// grab the filename of the hit location texture
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
break;
// have we already loaded this?
shader.hitLocation = R_FindHitMat(token);
// nope, better load it in and register it
if (!shader.hitLocation)
{
// sanity check
if (hitMatCount == MAX_HITMAT_ENTRIES)
{
ri.Error(ERR_DROP, "Not enough entry space for hit location file %s\n", token);
}
// find us a new spot in the material list - and make sure we avoid the 0 spot in the list
hitMatCount++;
// now load that file in
LoadTGAPalletteImage(token, &buffer, &hitMatReg[hitMatCount].width, &hitMatReg[hitMatCount].height);
if (buffer)
{
hitMatReg[hitMatCount].loc = (byte *)ri.Hunk_Alloc(hitMatReg[hitMatCount].height * hitMatReg[hitMatCount].width, h_low);
shader.hitLocation = hitMatCount;
// copy data into new space in the hunk so we can free the temp malloced space
memcpy(hitMatReg[hitMatCount].loc, buffer,(hitMatReg[hitMatCount].height * hitMatReg[hitMatCount].width));
// now free original space we loaded it into
Z_Free(buffer);
Com_sprintf(hitMatReg[hitMatCount].name, MAX_QPATH, "%s", token);
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: missing hit location data file '%s' in shader %s\n", token, shader.name );
hitMatCount--;
}
}
continue;
}
//
// location hit material mesh load
//
else if ( !Q_stricmp( token, "hitMaterial" ) )
{
byte *buffer = 0;
// grab the filename of the hit location texture
token = COM_ParseExt( text, qfalse );
if ( token[0] == 0 )
break;
// have we already loaded this?
shader.hitMaterial = R_FindHitMat(token);
// nope, better load it in and register it
if (!shader.hitMaterial)
{
// sanity check
if (hitMatCount == MAX_HITMAT_ENTRIES)
{
ri.Error(ERR_DROP, "Not enough entry space for hit Material file %s\n", token);
}
// find us a new spot in the material list - and make sure we avoid the 0 spot in the list
hitMatCount++;
// now load that file in
LoadTGAPalletteImage(token, &buffer, &hitMatReg[hitMatCount].width, &hitMatReg[hitMatCount].height);
if (buffer)
{
hitMatReg[hitMatCount].loc = (byte *)ri.Hunk_Alloc(hitMatReg[hitMatCount].height * hitMatReg[hitMatCount].width, h_low);
shader.hitMaterial = hitMatCount;
// copy data into new space in the hunk so we can free the temp malloced space
memcpy(hitMatReg[hitMatCount].loc, buffer,(hitMatReg[hitMatCount].height * hitMatReg[hitMatCount].width));
// now free original space we loaded it into
Z_Free(buffer);
Com_sprintf(hitMatReg[hitMatCount].name, MAX_QPATH, "%s", token);
}
else
{
ri.Printf( PRINT_WARNING, "WARNING: missing hit material data file '%s' in shader %s\n", token, shader.name );
hitMatCount--;
}
}
continue;
}
/*
Ghoul2 Insert End
*/
else
{
ri.Printf( PRINT_WARNING, "WARNING: unknown general shader parameter '%s' in '%s'\n", token, shader.name );
return qfalse;
}
}
//
// ignore shaders that don't have any stages, unless it is a sky or fog
//
if ( s == 0 && !shader.isSky && !(shader.contentFlags & CONTENTS_FOG ) ) {
return qfalse;
}
shader.explicitlyDefined = qtrue;
return qtrue;
}
/*
========================================================================================
SHADER OPTIMIZATION AND FOGGING
========================================================================================
*/
/*
===================
ComputeStageIteratorFunc
See if we can use on of the simple fastpath stage functions,
otherwise set to the generic stage function
===================
*/
static void ComputeStageIteratorFunc( void )
{
shader.optimalStageIteratorFunc = RB_StageIteratorGeneric;
//
// see if this should go into the sky path
//
if ( shader.isSky )
{
shader.optimalStageIteratorFunc = RB_StageIteratorSky;
goto done;
}
if ( r_ignoreFastPath->integer )
{
return;
}
//
// see if this can go into the vertex lit fast path
//
if ( shader.numUnfoggedPasses == 1 )
{
if ( stages[0].rgbGen == CGEN_LIGHTING_DIFFUSE )
{
if ( stages[0].alphaGen == AGEN_IDENTITY )
{
if ( stages[0].bundle[0].tcGen == TCGEN_TEXTURE )
{
if ( !shader.polygonOffset )
{
if ( !shader.multitextureEnv )
{
if ( !shader.numDeforms )
{
shader.optimalStageIteratorFunc = RB_StageIteratorVertexLitTexture;
goto done;
}
}
}
}
}
}
}
//
// see if this can go into an optimized LM, multitextured path
//
if ( shader.numUnfoggedPasses == 1 )
{
if ( ( stages[0].rgbGen == CGEN_IDENTITY ) && ( stages[0].alphaGen == AGEN_IDENTITY ) )
{
if ( stages[0].bundle[0].tcGen == TCGEN_TEXTURE &&
stages[0].bundle[1].tcGen == TCGEN_LIGHTMAP )
{
if ( !shader.polygonOffset )
{
if ( !shader.numDeforms )
{
if ( shader.multitextureEnv )
{
shader.optimalStageIteratorFunc = RB_StageIteratorLightmappedMultitexture;
goto done;
}
}
}
}
}
}
done:
return;
}
typedef struct {
int blendA;
int blendB;
int multitextureEnv;
int multitextureBlend;
} collapse_t;
static collapse_t collapse[] = {
{ 0, GLS_DSTBLEND_SRC_COLOR | GLS_SRCBLEND_ZERO,
GL_MODULATE, 0 },
{ 0, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR,
GL_MODULATE, 0 },
{ GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR,
GL_MODULATE, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR },
{ GLS_DSTBLEND_SRC_COLOR | GLS_SRCBLEND_ZERO, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR,
GL_MODULATE, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR },
{ GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR, GLS_DSTBLEND_SRC_COLOR | GLS_SRCBLEND_ZERO,
GL_MODULATE, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR },
{ GLS_DSTBLEND_SRC_COLOR | GLS_SRCBLEND_ZERO, GLS_DSTBLEND_SRC_COLOR | GLS_SRCBLEND_ZERO,
GL_MODULATE, GLS_DSTBLEND_ZERO | GLS_SRCBLEND_DST_COLOR },
{ 0, GLS_DSTBLEND_ONE | GLS_SRCBLEND_ONE,
GL_ADD, 0 },
{ GLS_DSTBLEND_ONE | GLS_SRCBLEND_ONE, GLS_DSTBLEND_ONE | GLS_SRCBLEND_ONE,
GL_ADD, GLS_DSTBLEND_ONE | GLS_SRCBLEND_ONE },
#if 0
{ 0, GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_SRCBLEND_SRC_ALPHA,
GL_DECAL, 0 },
#endif
{ -1 }
};
/*
================
CollapseMultitexture
Attempt to combine two stages into a single multitexture stage
FIXME: I think modulated add + modulated add collapses incorrectly
=================
*/
static qboolean CollapseMultitexture( void ) {
int abits, bbits;
int i;
textureBundle_t tmpBundle;
if ( !qglActiveTextureARB ) {
return qfalse;
}
// make sure both stages are active
if ( !stages[0].active || !stages[1].active ) {
return qfalse;
}
abits = stages[0].stateBits;
bbits = stages[1].stateBits;
// make sure that both stages have identical state other than blend modes
if ( ( abits & ~( GLS_DSTBLEND_BITS | GLS_SRCBLEND_BITS | GLS_DEPTHMASK_TRUE ) ) !=
( bbits & ~( GLS_DSTBLEND_BITS | GLS_SRCBLEND_BITS | GLS_DEPTHMASK_TRUE ) ) ) {
return qfalse;
}
abits &= ( GLS_DSTBLEND_BITS | GLS_SRCBLEND_BITS );
bbits &= ( GLS_DSTBLEND_BITS | GLS_SRCBLEND_BITS );
// search for a valid multitexture blend function
for ( i = 0; collapse[i].blendA != -1 ; i++ ) {
if ( abits == collapse[i].blendA
&& bbits == collapse[i].blendB ) {
break;
}
}
// nothing found
if ( collapse[i].blendA == -1 ) {
return qfalse;
}
#ifdef DEDICATED
return qfalse;
#else
// GL_ADD is a separate extension
if ( collapse[i].multitextureEnv == GL_ADD && !glConfig.textureEnvAddAvailable ) {
return qfalse;
}
#endif //!DEDICATED
// make sure waveforms have identical parameters
if ( ( stages[0].rgbGen != stages[1].rgbGen ) ||
( stages[0].alphaGen != stages[1].alphaGen ) ) {
return qfalse;
}
// an add collapse can only have identity colors
if ( collapse[i].multitextureEnv == GL_ADD && stages[0].rgbGen != CGEN_IDENTITY ) {
return qfalse;
}
if ( stages[0].rgbGen == CGEN_WAVEFORM )
{
if ( memcmp( &stages[0].rgbWave,
&stages[1].rgbWave,
sizeof( stages[0].rgbWave ) ) )
{
return qfalse;
}
}
if ( stages[0].alphaGen == CGEN_WAVEFORM )
{
if ( memcmp( &stages[0].alphaWave,
&stages[1].alphaWave,
sizeof( stages[0].alphaWave ) ) )
{
return qfalse;
}
}
// make sure that lightmaps are in bundle 1 for 3dfx
if ( stages[0].bundle[0].isLightmap )
{
tmpBundle = stages[0].bundle[0];
stages[0].bundle[0] = stages[1].bundle[0];
stages[0].bundle[1] = tmpBundle;
}
else
{
stages[0].bundle[1] = stages[1].bundle[0];
}
// set the new blend state bits
shader.multitextureEnv = collapse[i].multitextureEnv;
stages[0].stateBits &= ~( GLS_DSTBLEND_BITS | GLS_SRCBLEND_BITS );
stages[0].stateBits |= collapse[i].multitextureBlend;
//
// move down subsequent shaders
//
memmove( &stages[1], &stages[2], sizeof( stages[0] ) * ( MAX_SHADER_STAGES - 2 ) );
Com_Memset( &stages[MAX_SHADER_STAGES-1], 0, sizeof( stages[0] ) );
return qtrue;
}
/*
==============
SortNewShader
Positions the most recently created shader in the tr.sortedShaders[]
array so that the shader->sort key is sorted reletive to the other
shaders.
Sets shader->sortedIndex
==============
*/
static void SortNewShader( void ) {
int i;
float sort;
shader_t *newShader;
newShader = tr.shaders[ tr.numShaders - 1 ];
sort = newShader->sort;
for ( i = tr.numShaders - 2 ; i >= 0 ; i-- ) {
if ( tr.sortedShaders[ i ]->sort <= sort ) {
break;
}
tr.sortedShaders[i+1] = tr.sortedShaders[i];
tr.sortedShaders[i+1]->sortedIndex++;
}
newShader->sortedIndex = i+1;
tr.sortedShaders[i+1] = newShader;
}
/*
====================
GeneratePermanentShader
====================
*/
static shader_t *GeneratePermanentShader( void ) {
shader_t *newShader;
int i, b;
int size, hash;
if ( tr.numShaders == MAX_SHADERS ) {
ri.Printf( PRINT_WARNING, "WARNING: GeneratePermanentShader - MAX_SHADERS hit\n");
return tr.defaultShader;
}
newShader = (struct shader_s *)ri.Hunk_Alloc( sizeof( shader_t ), h_low );
*newShader = shader;
/*
if (shader.sort <= SS_SEE_THROUGH) // rjr was SS_OPAQUE, but hard edge light map alphas didn't fog
{
// if (newShader->fogPass != FP_GLFOG)
{
newShader->fogPass = FP_EQUAL;
}
}
else if ( shader.contentFlags & CONTENTS_FOG )
{
// if (newShader->fogPass != FP_GLFOG)
{
newShader->fogPass = FP_LE;
}
}
else
{
newShader->fogPass = FP_NONE;
}
*/
//From SP:
if ( shader.sort <= SS_OPAQUE ) {
newShader->fogPass = FP_EQUAL;
} else if ( shader.contentFlags & CONTENTS_FOG ) {
newShader->fogPass = FP_LE;
}
tr.shaders[ tr.numShaders ] = newShader;
newShader->index = tr.numShaders;
tr.sortedShaders[ tr.numShaders ] = newShader;
newShader->sortedIndex = tr.numShaders;
tr.numShaders++;
for ( i = 0 ; i < newShader->numUnfoggedPasses ; i++ ) {
if ( !stages[i].active ) {
break;
}
newShader->stages[i] = (shaderStage_t *)ri.Hunk_Alloc( sizeof( stages[i] ), h_low );
*newShader->stages[i] = stages[i];
for ( b = 0 ; b < NUM_TEXTURE_BUNDLES ; b++ ) {
size = newShader->stages[i]->bundle[b].numTexMods * sizeof( texModInfo_t );
newShader->stages[i]->bundle[b].texMods = (texModInfo_t *)ri.Hunk_Alloc( size, h_low );
Com_Memcpy( newShader->stages[i]->bundle[b].texMods, stages[i].bundle[b].texMods, size );
}
}
SortNewShader();
hash = generateHashValue(newShader->name, FILE_HASH_SIZE);
newShader->next = hashTable[hash];
hashTable[hash] = newShader;
return newShader;
}
/*
=================
VertexLightingCollapse
If vertex lighting is enabled, only render a single
pass, trying to guess which is the correct one to best aproximate
what it is supposed to look like.
OUTPUT: Number of stages after the collapse (in the case of surfacesprites this isn't one).
=================
*/
//rww - no longer used, at least for now. destroys alpha shaders completely.
#if 0
static int VertexLightingCollapse( void ) {
int stage, nextopenstage;
shaderStage_t *bestStage;
int bestImageRank;
int rank;
int finalstagenum=1;
// if we aren't opaque, just use the first pass
if ( shader.sort == SS_OPAQUE ) {
// pick the best texture for the single pass
bestStage = &stages[0];
bestImageRank = -999999;
for ( stage = 0; stage < MAX_SHADER_STAGES; stage++ ) {
shaderStage_t *pStage = &stages[stage];
if ( !pStage->active ) {
break;
}
rank = 0;
if ( pStage->bundle[0].isLightmap ) {
rank -= 100;
}
if ( pStage->bundle[0].tcGen != TCGEN_TEXTURE ) {
rank -= 5;
}
if ( pStage->bundle[0].numTexMods ) {
rank -= 5;
}
if ( pStage->rgbGen != CGEN_IDENTITY && pStage->rgbGen != CGEN_IDENTITY_LIGHTING ) {
rank -= 3;
}
// SurfaceSprites are most certainly NOT desireable as the collapsed surface texture.
if ( pStage->ss.surfaceSpriteType)
{
rank -= 1000;
}
if ( rank > bestImageRank ) {
bestImageRank = rank;
bestStage = pStage;
}
}
stages[0].bundle[0] = bestStage->bundle[0];
stages[0].stateBits &= ~( GLS_DSTBLEND_BITS | GLS_SRCBLEND_BITS );
stages[0].stateBits |= GLS_DEPTHMASK_TRUE;
if ( shader.lightmapIndex[0] == LIGHTMAP_NONE ) {
stages[0].rgbGen = CGEN_LIGHTING_DIFFUSE;
} else {
stages[0].rgbGen = CGEN_EXACT_VERTEX;
}
stages[0].alphaGen = AGEN_SKIP;
} else {
// don't use a lightmap (tesla coils)
if ( stages[0].bundle[0].isLightmap ) {
stages[0] = stages[1];
}
// if we were in a cross-fade cgen, hack it to normal
if ( stages[0].rgbGen == CGEN_ONE_MINUS_ENTITY || stages[1].rgbGen == CGEN_ONE_MINUS_ENTITY ) {
stages[0].rgbGen = CGEN_IDENTITY_LIGHTING;
}
if ( ( stages[0].rgbGen == CGEN_WAVEFORM && stages[0].rgbWave.func == GF_SAWTOOTH )
&& ( stages[1].rgbGen == CGEN_WAVEFORM && stages[1].rgbWave.func == GF_INVERSE_SAWTOOTH ) ) {
stages[0].rgbGen = CGEN_IDENTITY_LIGHTING;
}
if ( ( stages[0].rgbGen == CGEN_WAVEFORM && stages[0].rgbWave.func == GF_INVERSE_SAWTOOTH )
&& ( stages[1].rgbGen == CGEN_WAVEFORM && stages[1].rgbWave.func == GF_SAWTOOTH ) ) {
stages[0].rgbGen = CGEN_IDENTITY_LIGHTING;
}
}
for ( stage=1, nextopenstage=1; stage < MAX_SHADER_STAGES; stage++ ) {
shaderStage_t *pStage = &stages[stage];
if ( !pStage->active ) {
break;
}
if (pStage->ss.surfaceSpriteType)
{
// Copy this stage to the next open stage list (that is, we don't want any inactive stages before this one)
if (nextopenstage != stage)
{
stages[nextopenstage] = *pStage;
stages[nextopenstage].bundle[0] = pStage->bundle[0];
}
nextopenstage++;
finalstagenum++;
continue;
}
Com_Memset( pStage, 0, sizeof( *pStage ) );
}
return finalstagenum;
}
#endif
/*
=========================
FinishShader
Returns a freshly allocated shader with all the needed info
from the current global working shader
=========================
*/
static shader_t *FinishShader( void ) {
int stage, lmStage;
qboolean hasLightmapStage;
qboolean vertexLightmap;
hasLightmapStage = qfalse;
vertexLightmap = qfalse;
//
// set sky stuff appropriate
//
if ( shader.isSky ) {
shader.sort = SS_ENVIRONMENT;
tr.sunSurfaceLight = shader.surfaceLight;
VectorCopy(shader.lightColor, tr.sunAmbient);
}
//
// set polygon offset
//
if ( shader.polygonOffset && !shader.sort ) {
shader.sort = SS_DECAL;
}
for(lmStage = 0; lmStage < MAX_SHADER_STAGES; lmStage++)
{
shaderStage_t *pStage = &stages[lmStage];
if (pStage->active && pStage->bundle[0].isLightmap)
{
break;
}
}
if (lmStage < MAX_SHADER_STAGES)
{
if (shader.lightmapIndex[0] == LIGHTMAP_BY_VERTEX)
{
if (lmStage < MAX_SHADER_STAGES - 1)
{
memmove(&stages[lmStage], &stages[lmStage + 1], sizeof(shaderStage_t) * (MAX_SHADER_STAGES - lmStage - 1));
}
memset(&stages[MAX_SHADER_STAGES - 1], 0, sizeof(shaderStage_t));
stages[lmStage].rgbGen = CGEN_VERTEX;
stages[lmStage].alphaGen = AGEN_SKIP;
stages[lmStage].stateBits = GLS_DEFAULT;
lmStage = MAX_SHADER_STAGES;
}
}
if (lmStage < MAX_SHADER_STAGES)// && !r_fullbright->value)
{
int numStyles;
int i;
for(numStyles = 0; numStyles < MAXLIGHTMAPS; numStyles++)
{
if (shader.styles[numStyles] >= LS_UNUSED)
{
break;
}
}
numStyles--;
if (numStyles > 0)
{
for(i = MAX_SHADER_STAGES - 1; i > lmStage + numStyles; i--)
{
stages[i] = stages[i - numStyles];
}
for(i = 0; i < numStyles; i++)
{
if (shader.lightmapIndex[i + 1] < 0)
{
ri.Error( ERR_DROP, "FinishShader: light style with no light map for shader %s", shader.name);
}
stages[lmStage +i + 1] = stages[lmStage];
stages[lmStage +i + 1].bundle[0].image[0] = tr.lightmaps[shader.lightmapIndex[i + 1]];
stages[lmStage +i + 1].bundle[0].tcGen = (texCoordGen_t)(TCGEN_LIGHTMAP + i + 1);
stages[lmStage +i + 1].rgbGen = (colorGen_t)(CGEN_LIGHTMAP1 + i);
stages[lmStage +i + 1].stateBits &= ~(GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS);
// stages[lmStage +i + 1].stateBits |= GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_COLOR;
stages[lmStage +i + 1].stateBits |= GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE;
}
if (shader.fogPass == FP_GLFOG)
{
shader.fogPass = FP_EQUAL;
}
}
for(i = 0; i <= numStyles; i++)
{
stages[lmStage + i].lightmapStyle = shader.styles[i];
}
}
//
// set appropriate stage information
//
for ( stage = 0; stage < MAX_SHADER_STAGES; stage++ ) {
shaderStage_t *pStage = &stages[stage];
if ( !pStage->active ) {
break;
}
// check for a missing texture
if ( !pStage->bundle[0].image[0] ) {
ri.Printf( PRINT_WARNING, "Shader %s has a stage with no image\n", shader.name );
pStage->active = qfalse;
continue;
}
//
// ditch this stage if it's detail and detail textures are disabled
//
if ( pStage->isDetail && !r_detailTextures->integer ) {
if ( stage < ( MAX_SHADER_STAGES - 1 ) ) {
memmove( pStage, pStage + 1, sizeof( *pStage ) * ( MAX_SHADER_STAGES - stage - 1 ) );
// rww - 9-13-01 [1-26-01-sof2]
memset( pStage + ( MAX_SHADER_STAGES - stage - 1 ), 0, sizeof( *pStage ) ); //clear the last one moved down
stage--; //look at this stage next time around
}
continue;
}
//
// default texture coordinate generation
//
if ( pStage->bundle[0].isLightmap ) {
if ( pStage->bundle[0].tcGen == TCGEN_BAD ) {
pStage->bundle[0].tcGen = TCGEN_LIGHTMAP;
}
hasLightmapStage = qtrue;
} else {
if ( pStage->bundle[0].tcGen == TCGEN_BAD ) {
pStage->bundle[0].tcGen = TCGEN_TEXTURE;
}
}
// not a true lightmap but we want to leave existing
// behaviour in place and not print out a warning
//if (pStage->rgbGen == CGEN_VERTEX) {
// vertexLightmap = qtrue;
//}
//
// determine sort order and fog color adjustment
//
if ( ( pStage->stateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) ) &&
( stages[0].stateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) ) ) {
int blendSrcBits = pStage->stateBits & GLS_SRCBLEND_BITS;
int blendDstBits = pStage->stateBits & GLS_DSTBLEND_BITS;
// fog color adjustment only works for blend modes that have a contribution
// that aproaches 0 as the modulate values aproach 0 --
// GL_ONE, GL_ONE
// GL_ZERO, GL_ONE_MINUS_SRC_COLOR
// GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA
// modulate, additive
if ( ( ( blendSrcBits == GLS_SRCBLEND_ONE ) && ( blendDstBits == GLS_DSTBLEND_ONE ) ) ||
( ( blendSrcBits == GLS_SRCBLEND_ZERO ) && ( blendDstBits == GLS_DSTBLEND_ONE_MINUS_SRC_COLOR ) ) ) {
pStage->adjustColorsForFog = ACFF_MODULATE_RGB;
}
// strict blend
else if ( ( blendSrcBits == GLS_SRCBLEND_SRC_ALPHA ) && ( blendDstBits == GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA ) )
{
pStage->adjustColorsForFog = ACFF_MODULATE_ALPHA;
}
// premultiplied alpha
else if ( ( blendSrcBits == GLS_SRCBLEND_ONE ) && ( blendDstBits == GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA ) )
{
pStage->adjustColorsForFog = ACFF_MODULATE_RGBA;
} else {
// we can't adjust this one correctly, so it won't be exactly correct in fog
}
// don't screw with sort order if this is a portal or environment
if ( !shader.sort ) {
// see through item, like a grill or grate
if ( pStage->stateBits & GLS_DEPTHMASK_TRUE )
{
shader.sort = SS_SEE_THROUGH;
}
else
{
/*
if (( blendSrcBits == GLS_SRCBLEND_ONE ) && ( blendDstBits == GLS_DSTBLEND_ONE ))
{
// GL_ONE GL_ONE needs to come a bit later
shader.sort = SS_BLEND2;
}
else if (( blendSrcBits == GLS_SRCBLEND_SRC_ALPHA ) && ( blendDstBits == GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA ))
{ //rww - Pushed SS_BLEND1 up to SS_BLEND2, inserting this so that saber glow will render above water and things.
//Unfortunately it still affects other shaders with the same blend settings, but it seems more or less alright.
shader.sort = SS_BLEND1;
}
else
{
shader.sort = SS_BLEND0;
}
*/
if (( blendSrcBits == GLS_SRCBLEND_ONE ) && ( blendDstBits == GLS_DSTBLEND_ONE ))
{
// GL_ONE GL_ONE needs to come a bit later
shader.sort = SS_BLEND1;
}
else
{
shader.sort = SS_BLEND0;
}
}
}
}
}
// there are times when you will need to manually apply a sort to
// opaque alpha tested shaders that have later blend passes
if ( !shader.sort ) {
shader.sort = SS_OPAQUE;
}
//
// if we are in r_vertexLight mode, never use a lightmap texture
//
if ( stage > 1 && (r_vertexLight->integer && !r_uiFullScreen->integer) ) {
//stage = VertexLightingCollapse();
//rww - since this does bad things, I am commenting it out for now. If you want to attempt a fix, feel free.
hasLightmapStage = qfalse;
}
//
// look for multitexture potential
//
if ( stage > 1 && CollapseMultitexture() ) {
stage--;
}
if ( shader.lightmapIndex[0] >= 0 && !hasLightmapStage )
{
if (vertexLightmap)
{
// ri.DPrintf( "WARNING: shader '%s' has VERTEX forced lightmap!\n", shader.name );
}
else
{
ri.Printf(PRINT_ALL, "WARNING: shader '%s' has lightmap but no lightmap stage!\n", shader.name );
memcpy(shader.lightmapIndex, lightmapsNone, sizeof(shader.lightmapIndex));
memcpy(shader.styles, stylesDefault, sizeof(shader.styles));
}
}
//
// compute number of passes
//
shader.numUnfoggedPasses = stage;
// fogonly shaders don't have any normal passes
if ( stage == 0 ) {
shader.sort = SS_FOG;
}
// determine which stage iterator function is appropriate
ComputeStageIteratorFunc();
shader.lastNonDetailStage = 0;
for ( stage = 1; stage < shader.numUnfoggedPasses; stage++ )
{
// Make sure stage is non detail and active
if(stages[stage].isDetail || !stages[stage].active)
{
break;
}
// MT lightmaps are always in bundle 1
if(stages[stage].bundle[0].isLightmap)
{
continue;
}
shader.lastNonDetailStage = stage;
}
return GeneratePermanentShader();
}
//========================================================================================
/*
====================
FindShaderInShaderText
Scans the combined text description of all the shader files for
the given shader name.
return NULL if not found
If found, it will return a valid shader
=====================
*/
static const char *FindShaderInShaderText( const char *shadername ) {
char *token;
const char *p;
int i, hash;
hash = generateHashValue(shadername, MAX_SHADERTEXT_HASH);
for (i = 0; shaderTextHashTable[hash][i]; i++) {
p = shaderTextHashTable[hash][i];
token = COM_ParseExt(&p, qtrue);
if ( !Q_stricmp( token, shadername ) ) {
return p;
}
}
p = s_shaderText;
if ( !p ) {
return NULL;
}
// look for label
while ( 1 ) {
token = COM_ParseExt( &p, qtrue );
if ( token[0] == 0 ) {
break;
}
if ( !Q_stricmp( token, shadername ) ) {
return p;
}
else {
// skip the definition
SkipBracedSection( &p );
}
}
return NULL;
}
/*
==================
R_FindShaderByName
Will always return a valid shader, but it might be the
default shader if the real one can't be found.
==================
*/
shader_t *R_FindShaderByName( const char *name ) {
char strippedName[MAX_QPATH];
int hash;
shader_t *sh;
if ( (name==NULL) || (name[0] == 0) ) { // bk001205
return tr.defaultShader;
}
COM_StripExtension( name, strippedName );
hash = generateHashValue(strippedName, FILE_HASH_SIZE);
//
// see if the shader is already loaded
//
for (sh=hashTable[hash]; sh; sh=sh->next) {
// NOTE: if there was no shader or image available with the name strippedName
// then a default shader is created with lightmapIndex == LIGHTMAP_NONE, so we
// have to check all default shaders otherwise for every call to R_FindShader
// with that same strippedName a new default shader is created.
if (Q_stricmp(sh->name, strippedName) == 0) {
// match found
return sh;
}
}
return tr.defaultShader;
}
inline qboolean IsShader(shader_t *sh, const char *name, const int *lightmapIndex, const byte *styles)
{
int i;
if (Q_stricmp(sh->name, name))
{
return qfalse;
}
if (!sh->defaultShader)
{
for(i=0;i<MAXLIGHTMAPS;i++)
{
if (sh->lightmapIndex[i] != lightmapIndex[i])
{
return qfalse;
}
if (sh->styles[i] != styles[i])
{
return qfalse;
}
}
}
return qtrue;
}
/*
===============
R_FindShader
Will always return a valid shader, but it might be the
default shader if the real one can't be found.
In the interest of not requiring an explicit shader text entry to
be defined for every single image used in the game, three default
shader behaviors can be auto-created for any image:
If lightmapIndex == LIGHTMAP_NONE, then the image will have
dynamic diffuse lighting applied to it, as apropriate for most
entity skin surfaces.
If lightmapIndex == LIGHTMAP_2D, then the image will be used
for 2D rendering unless an explicit shader is found
If lightmapIndex == LIGHTMAP_BY_VERTEX, then the image will use
the vertex rgba modulate values, as apropriate for misc_model
pre-lit surfaces.
Other lightmapIndex values will have a lightmap stage created
and src*dest blending applied with the texture, as apropriate for
most world construction surfaces.
===============
*/
shader_t *R_FindShader( const char *name, const int *lightmapIndex, const byte *styles, qboolean mipRawImage )
{
char strippedName[MAX_QPATH];
char fileName[MAX_QPATH];
int i, hash;
const char *shaderText;
image_t *image;
shader_t *sh;
if ( name[0] == 0 ) {
return tr.defaultShader;
}
// use (fullbright) vertex lighting if the bsp file doesn't have
// lightmaps
if ( lightmapIndex[0] >= 0 && lightmapIndex[0] >= tr.numLightmaps )
{
lightmapIndex = lightmapsVertex;
}
COM_StripExtension( name, strippedName );
hash = generateHashValue(strippedName, FILE_HASH_SIZE);
//
// see if the shader is already loaded
//
for (sh = hashTable[hash]; sh; sh = sh->next) {
// NOTE: if there was no shader or image available with the name strippedName
// then a default shader is created with lightmapIndex == LIGHTMAP_NONE, so we
// have to check all default shaders otherwise for every call to R_FindShader
// with that same strippedName a new default shader is created.
if (IsShader(sh, strippedName, lightmapIndex, styles))
{
return sh;
}
}
// make sure the render thread is stopped, because we are probably
// going to have to upload an image
if (r_smp->integer) {
R_SyncRenderThread();
}
// clear the global shader
Com_Memset( &shader, 0, sizeof( shader ) );
Com_Memset( &stages, 0, sizeof( stages ) );
Q_strncpyz(shader.name, strippedName, sizeof(shader.name));
memcpy(shader.lightmapIndex, lightmapIndex, sizeof(shader.lightmapIndex));
memcpy(shader.styles, styles, sizeof(shader.styles));
for ( i = 0 ; i < MAX_SHADER_STAGES ; i++ ) {
stages[i].bundle[0].texMods = texMods[i];
}
// FIXME: set these "need" values apropriately
shader.needsNormal = qtrue;
shader.needsST1 = qtrue;
shader.needsST2 = qtrue;
shader.needsColor = qtrue;
//
// attempt to define shader from an explicit parameter file
//
shaderText = FindShaderInShaderText( strippedName );
if ( shaderText ) {
// enable this when building a pak file to get a global list
// of all explicit shaders
if ( r_printShaders->integer ) {
ri.Printf( PRINT_ALL, "*SHADER* %s\n", name );
}
if ( !ParseShader( &shaderText ) ) {
// had errors, so use default shader
shader.defaultShader = qtrue;
}
sh = FinishShader();
return sh;
}
//
// if not defined in the in-memory shader descriptions,
// look for a single TGA, BMP, or PCX
//
COM_StripExtension(name,fileName);
#ifdef DEDICATED
shader.defaultShader = qtrue;
return FinishShader();
#else
image = R_FindImageFile( fileName, mipRawImage, mipRawImage, qtrue, mipRawImage ? GL_REPEAT : GL_CLAMP );
if ( !image ) {
ri.Printf( PRINT_DEVELOPER, "Couldn't find image for shader %s\n", name );
shader.defaultShader = qtrue;
return FinishShader();
}
#endif //!DEDICATED
//
// create the default shading commands
//
if ( shader.lightmapIndex[0] == LIGHTMAP_NONE ) {
// dynamic colors at vertexes
stages[0].bundle[0].image[0] = image;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_LIGHTING_DIFFUSE;
stages[0].stateBits = GLS_DEFAULT;
} else if ( shader.lightmapIndex[0] == LIGHTMAP_BY_VERTEX ) {
// explicit colors at vertexes
stages[0].bundle[0].image[0] = image;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_EXACT_VERTEX;
stages[0].alphaGen = AGEN_SKIP;
stages[0].stateBits = GLS_DEFAULT;
} else if ( shader.lightmapIndex[0] == LIGHTMAP_2D ) {
// GUI elements
stages[0].bundle[0].image[0] = image;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_VERTEX;
stages[0].alphaGen = AGEN_VERTEX;
stages[0].stateBits = GLS_DEPTHTEST_DISABLE |
GLS_SRCBLEND_SRC_ALPHA |
GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA;
} else if ( shader.lightmapIndex[0] == LIGHTMAP_WHITEIMAGE ) {
// fullbright level
stages[0].bundle[0].image[0] = tr.whiteImage;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_IDENTITY_LIGHTING;
stages[0].stateBits = GLS_DEFAULT;
stages[1].bundle[0].image[0] = image;
stages[1].active = qtrue;
stages[1].rgbGen = CGEN_IDENTITY;
stages[1].stateBits |= GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO;
} else {
// two pass lightmap
stages[0].bundle[0].image[0] = tr.lightmaps[shader.lightmapIndex[0]];
stages[0].bundle[0].isLightmap = qtrue;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_IDENTITY; // lightmaps are scaled on creation
// for identitylight
stages[0].stateBits = GLS_DEFAULT;
stages[1].bundle[0].image[0] = image;
stages[1].active = qtrue;
stages[1].rgbGen = CGEN_IDENTITY;
stages[1].stateBits |= GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO;
}
return FinishShader();
}
qhandle_t RE_RegisterShaderFromImage(const char *name, int *lightmapIndex, byte *styles, image_t *image, qboolean mipRawImage) {
int i, hash;
shader_t *sh;
hash = generateHashValue(name, FILE_HASH_SIZE);
//
// see if the shader is already loaded
//
for (sh=hashTable[hash]; sh; sh=sh->next) {
// NOTE: if there was no shader or image available with the name strippedName
// then a default shader is created with lightmapIndex == LIGHTMAP_NONE, so we
// have to check all default shaders otherwise for every call to R_FindShader
// with that same strippedName a new default shader is created.
if (IsShader(sh, name, lightmapIndex, styles))
{
return sh->index;
}
}
// make sure the render thread is stopped, because we are probably
// going to have to upload an image
if (r_smp->integer) {
R_SyncRenderThread();
}
// clear the global shader
Com_Memset( &shader, 0, sizeof( shader ) );
Com_Memset( &stages, 0, sizeof( stages ) );
Q_strncpyz(shader.name, name, sizeof(shader.name));
memcpy(shader.lightmapIndex, lightmapIndex, sizeof(shader.lightmapIndex));
memcpy(shader.styles, styles, sizeof(shader.styles));
for ( i = 0 ; i < MAX_SHADER_STAGES ; i++ ) {
stages[i].bundle[0].texMods = texMods[i];
}
// FIXME: set these "need" values apropriately
shader.needsNormal = qtrue;
shader.needsST1 = qtrue;
shader.needsST2 = qtrue;
shader.needsColor = qtrue;
//
// create the default shading commands
//
if ( shader.lightmapIndex[0] == LIGHTMAP_NONE ) {
// dynamic colors at vertexes
stages[0].bundle[0].image[0] = image;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_LIGHTING_DIFFUSE;
stages[0].stateBits = GLS_DEFAULT;
} else if ( shader.lightmapIndex[0] == LIGHTMAP_BY_VERTEX ) {
// explicit colors at vertexes
stages[0].bundle[0].image[0] = image;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_EXACT_VERTEX;
stages[0].alphaGen = AGEN_SKIP;
stages[0].stateBits = GLS_DEFAULT;
} else if ( shader.lightmapIndex[0] == LIGHTMAP_2D ) {
// GUI elements
stages[0].bundle[0].image[0] = image;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_VERTEX;
stages[0].alphaGen = AGEN_VERTEX;
stages[0].stateBits = GLS_DEPTHTEST_DISABLE |
GLS_SRCBLEND_SRC_ALPHA |
GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA;
} else if ( shader.lightmapIndex[0] == LIGHTMAP_WHITEIMAGE ) {
// fullbright level
stages[0].bundle[0].image[0] = tr.whiteImage;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_IDENTITY_LIGHTING;
stages[0].stateBits = GLS_DEFAULT;
stages[1].bundle[0].image[0] = image;
stages[1].active = qtrue;
stages[1].rgbGen = CGEN_IDENTITY;
stages[1].stateBits |= GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO;
} else {
// two pass lightmap
stages[0].bundle[0].image[0] = tr.lightmaps[shader.lightmapIndex[0]];
stages[0].bundle[0].isLightmap = qtrue;
stages[0].active = qtrue;
stages[0].rgbGen = CGEN_IDENTITY; // lightmaps are scaled on creation
// for identitylight
stages[0].stateBits = GLS_DEFAULT;
stages[1].bundle[0].image[0] = image;
stages[1].active = qtrue;
stages[1].rgbGen = CGEN_IDENTITY;
stages[1].stateBits |= GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO;
}
sh = FinishShader();
return sh->index;
}
/*
====================
RE_RegisterShader
This is the exported shader entry point for the rest of the system
It will always return an index that will be valid.
This should really only be used for explicit shaders, because there is no
way to ask for different implicit lighting modes (vertex, lightmap, etc)
====================
*/
qhandle_t RE_RegisterShaderLightMap( const char *name, const int *lightmapIndex, const byte *styles )
{
shader_t *sh;
if ( strlen( name ) >= MAX_QPATH ) {
Com_Printf( "Shader name exceeds MAX_QPATH\n" );
return 0;
}
sh = R_FindShader( name, lightmapIndex, styles, qtrue );
// we want to return 0 if the shader failed to
// load for some reason, but R_FindShader should
// still keep a name allocated for it, so if
// something calls RE_RegisterShader again with
// the same name, we don't try looking for it again
if ( sh->defaultShader ) {
return 0;
}
return sh->index;
}
/*
====================
RE_RegisterShader
This is the exported shader entry point for the rest of the system
It will always return an index that will be valid.
This should really only be used for explicit shaders, because there is no
way to ask for different implicit lighting modes (vertex, lightmap, etc)
====================
*/
qhandle_t RE_RegisterShader( const char *name ) {
shader_t *sh;
if ( strlen( name ) >= MAX_QPATH ) {
Com_Printf( "Shader name exceeds MAX_QPATH\n" );
return 0;
}
sh = R_FindShader( name, lightmaps2d, stylesDefault, qtrue );
// we want to return 0 if the shader failed to
// load for some reason, but R_FindShader should
// still keep a name allocated for it, so if
// something calls RE_RegisterShader again with
// the same name, we don't try looking for it again
if ( sh->defaultShader ) {
return 0;
}
return sh->index;
}
/*
====================
RE_RegisterShaderNoMip
For menu graphics that should never be picmiped
====================
*/
qhandle_t RE_RegisterShaderNoMip( const char *name ) {
shader_t *sh;
if ( strlen( name ) >= MAX_QPATH ) {
Com_Printf( "Shader name exceeds MAX_QPATH\n" );
return 0;
}
sh = R_FindShader( name, lightmaps2d, stylesDefault, qfalse );
// we want to return 0 if the shader failed to
// load for some reason, but R_FindShader should
// still keep a name allocated for it, so if
// something calls RE_RegisterShader again with
// the same name, we don't try looking for it again
if ( sh->defaultShader ) {
return 0;
}
return sh->index;
}
/*
====================
R_GetShaderByHandle
When a handle is passed in by another module, this range checks
it and returns a valid (possibly default) shader_t to be used internally.
====================
*/
shader_t *R_GetShaderByHandle( qhandle_t hShader ) {
if ( hShader < 0 ) {
ri.Printf( PRINT_WARNING, "R_GetShaderByHandle: out of range hShader '%d'\n", hShader ); // bk: FIXME name
return tr.defaultShader;
}
if ( hShader >= tr.numShaders ) {
ri.Printf( PRINT_WARNING, "R_GetShaderByHandle: out of range hShader '%d'\n", hShader );
return tr.defaultShader;
}
return tr.shaders[hShader];
}
/*
===============
R_ShaderList_f
Dump information on all valid shaders to the console
A second parameter will cause it to print in sorted order
===============
*/
void R_ShaderList_f (void) {
int i;
int count;
shader_t *shader;
ri.Printf (PRINT_ALL, "-----------------------\n");
count = 0;
for ( i = 0 ; i < tr.numShaders ; i++ ) {
if ( ri.Cmd_Argc() > 1 ) {
shader = tr.sortedShaders[i];
} else {
shader = tr.shaders[i];
}
ri.Printf( PRINT_ALL, "%i ", shader->numUnfoggedPasses );
if (shader->lightmapIndex[0] >= 0 ) {
ri.Printf (PRINT_ALL, "L ");
} else {
ri.Printf (PRINT_ALL, " ");
}
if ( shader->multitextureEnv == GL_ADD ) {
ri.Printf( PRINT_ALL, "MT(a) " );
} else if ( shader->multitextureEnv == GL_MODULATE ) {
ri.Printf( PRINT_ALL, "MT(m) " );
} else if ( shader->multitextureEnv == GL_DECAL ) {
ri.Printf( PRINT_ALL, "MT(d) " );
} else {
ri.Printf( PRINT_ALL, " " );
}
if ( shader->explicitlyDefined ) {
ri.Printf( PRINT_ALL, "E " );
} else {
ri.Printf( PRINT_ALL, " " );
}
if ( shader->optimalStageIteratorFunc == RB_StageIteratorGeneric ) {
ri.Printf( PRINT_ALL, "gen " );
} else if ( shader->optimalStageIteratorFunc == RB_StageIteratorSky ) {
ri.Printf( PRINT_ALL, "sky " );
} else if ( shader->optimalStageIteratorFunc == RB_StageIteratorLightmappedMultitexture ) {
ri.Printf( PRINT_ALL, "lmmt" );
} else if ( shader->optimalStageIteratorFunc == RB_StageIteratorVertexLitTexture ) {
ri.Printf( PRINT_ALL, "vlt " );
} else {
ri.Printf( PRINT_ALL, " " );
}
if ( shader->defaultShader ) {
ri.Printf (PRINT_ALL, ": %s (DEFAULTED)\n", shader->name);
} else {
ri.Printf (PRINT_ALL, ": %s\n", shader->name);
}
count++;
}
ri.Printf (PRINT_ALL, "%i total shaders\n", count);
ri.Printf (PRINT_ALL, "------------------\n");
}
/*
====================
ScanAndLoadShaderFiles
Finds and loads all .shader files, combining them into
a single large text block that can be scanned for shader names
=====================
*/
#define MAX_SHADER_FILES 4096
static void ScanAndLoadShaderFiles( const char *path )
{
char **shaderFiles;
char *buffers[MAX_SHADER_FILES];
char *p;
int numShaders;
int i;
char *oldp, *token, *hashMem;
int shaderTextHashTableSizes[MAX_SHADERTEXT_HASH], hash, size;
long sum = 0;
// scan for shader files
shaderFiles = ri.FS_ListFiles( path, ".shader", &numShaders );
if ( !shaderFiles || !numShaders )
{
ri.Printf( PRINT_WARNING, "WARNING: no shader files found\n" );
return;
}
if ( numShaders > MAX_SHADER_FILES ) {
numShaders = MAX_SHADER_FILES;
}
// load and parse shader files
for ( i = 0; i < numShaders; i++ )
{
char filename[MAX_QPATH];
Com_sprintf( filename, sizeof( filename ), "%s/%s", path, shaderFiles[i] );
ri.Printf( PRINT_ALL, "...loading '%s'\n", filename );
sum += ri.FS_ReadFile( filename, (void **)&buffers[i] );
if ( !buffers[i] ) {
ri.Error( ERR_DROP, "Couldn't load %s", filename );
}
}
// build single large buffer
s_shaderText = (char *)ri.Hunk_Alloc( sum + numShaders*2, h_low );
// free in reverse order, so the temp files are all dumped
for ( i = numShaders - 1; i >= 0 ; i-- ) {
strcat( s_shaderText, "\n" );
p = &s_shaderText[strlen(s_shaderText)];
strcat( s_shaderText, buffers[i] );
ri.FS_FreeFile( (void*) buffers[i] );
buffers[i] = p;
COM_Compress(p);
}
// free up memory
ri.FS_FreeFileList( shaderFiles );
Com_Memset(shaderTextHashTableSizes, 0, sizeof(shaderTextHashTableSizes));
size = 0;
//
for ( i = 0; i < numShaders; i++ ) {
// pointer to the first shader file
p = buffers[i];
// look for label
while ( 1 ) {
token = COM_ParseExt( (const char **)&p, qtrue );
if ( token[0] == 0 ) {
break;
}
hash = generateHashValue(token, MAX_SHADERTEXT_HASH);
shaderTextHashTableSizes[hash]++;
size++;
SkipBracedSection((const char **)&p);
// if we passed the pointer to the next shader file
if ( i < numShaders - 1 ) {
if ( p > buffers[i+1] ) {
break;
}
}
}
}
size += MAX_SHADERTEXT_HASH;
hashMem = (char *)ri.Hunk_Alloc( size * sizeof(char *), h_low );
for (i = 0; i < MAX_SHADERTEXT_HASH; i++) {
shaderTextHashTable[i] = (char **) hashMem;
hashMem = ((char *) hashMem) + ((shaderTextHashTableSizes[i] + 1) * sizeof(char *));
}
Com_Memset(shaderTextHashTableSizes, 0, sizeof(shaderTextHashTableSizes));
//
for ( i = 0; i < numShaders; i++ ) {
// pointer to the first shader file
p = buffers[i];
// look for label
while ( 1 ) {
oldp = p;
token = COM_ParseExt( (const char **)&p, qtrue );
if ( token[0] == 0 ) {
break;
}
hash = generateHashValue(token, MAX_SHADERTEXT_HASH);
shaderTextHashTable[hash][shaderTextHashTableSizes[hash]++] = oldp;
SkipBracedSection((const char **)&p);
// if we passed the pointer to the next shader file
if ( i < numShaders - 1 ) {
if ( p > buffers[i+1] ) {
break;
}
}
}
}
return;
}
/*
====================
CreateInternalShaders
====================
*/
static void CreateInternalShaders( void ) {
tr.numShaders = 0;
// init the default shader
Com_Memset( &shader, 0, sizeof( shader ) );
Com_Memset( &stages, 0, sizeof( stages ) );
Q_strncpyz( shader.name, "<default>", sizeof( shader.name ) );
memcpy(shader.lightmapIndex, lightmapsNone, sizeof(shader.lightmapIndex));
memcpy(shader.styles, stylesDefault, sizeof(shader.styles));
stages[0].bundle[0].image[0] = tr.defaultImage;
stages[0].active = qtrue;
stages[0].stateBits = GLS_DEFAULT;
tr.defaultShader = FinishShader();
// shadow shader is just a marker
Q_strncpyz( shader.name, "<stencil shadow>", sizeof( shader.name ) );
shader.sort = SS_STENCIL_SHADOW;
tr.shadowShader = FinishShader();
}
static void CreateExternalShaders( void ) {
tr.projectionShadowShader = R_FindShader( "projectionShadow", lightmapsNone, stylesDefault, qtrue );
tr.flareShader = R_FindShader( "flareShader", lightmapsNone, stylesDefault, qtrue );
tr.sunShader = R_FindShader( "sun", lightmapsNone, stylesDefault, qtrue );
}
/*
==================
R_InitShaders
==================
*/
void R_InitShaders( void ) {
ri.Printf( PRINT_ALL, "Initializing Shaders\n" );
Com_Memset(hashTable, 0, sizeof(hashTable));
deferLoad = qfalse;
/*
Ghoul2 Insert Start
*/
memset(hitMatReg, 0, sizeof(hitMatReg));
hitMatCount = 0;
/*
Ghoul2 Insert End
*/
CreateInternalShaders();
ScanAndLoadShaderFiles("shaders");
CreateExternalShaders();
}
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