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Readded external lightmap support

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This commit is contained in:
Walter Julius Hennecke 2012-08-01 15:49:12 +02:00
parent b90a89ea61
commit 21151db397
2 changed files with 165 additions and 63 deletions
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125
code/renderer/tr_bsp.c
View file

@ -125,25 +125,98 @@ static void R_ColorShiftLightingBytes( byte in[4], byte out[4] ) {
out[3] = in[3];
}
/*
===============
LightmapNameCompare
===============
*/
static int QDECL LightmapNameCompare(const void *a, const void *b)
{
char *s1, *s2;
int c1, c2;
s1 = *(char **)a;
s2 = *(char **)b;
do
{
c1 = *s1++;
c2 = *s2++;
if(c1 >= 'a' && c1 <= 'z')
{
c1 -= ('a' - 'A');
}
if(c2 >= 'a' && c2 <= 'z')
{
c2 -= ('a' - 'A');
}
if(c1 == '\\' || c1 == ':')
{
c1 = '/';
}
if(c2 == '\\' || c2 == ':')
{
c2 = '/';
}
if(c1 < c2)
{
// strings not equal
return -1;
}
if(c1 > c2)
{
return 1;
}
} while(c1);
// strings are equal
return 0;
}
#define LIGHTMAP_SIZE 128
/*
===============
R_LoadLightmaps
===============
*/
#define LIGHTMAP_SIZE 128
static void R_LoadLightmaps( lump_t *l ) {
static void R_LoadLightmaps(lump_t * l, const char *bspName)
{
byte *buf, *buf_p;
int len;
byte image[LIGHTMAP_SIZE*LIGHTMAP_SIZE*4];
int i, j;
char mapName[MAX_QPATH];
char **lightmapFiles;
int numLightmaps;
byte oldimage[LIGHTMAP_SIZE*LIGHTMAP_SIZE*4];
float maxIntensity = 0;
double sumIntensity = 0;
len = l->filelen;
Q_strncpyz(mapName, bspName, sizeof(mapName));
COM_StripExtension(mapName, mapName, sizeof(mapName));
strcat(mapName, "/lightmaps"); //HACK: Loads external lightmaps inside mapName/lightmaps/lm_0000.tga etc etc
lightmapFiles = ri.FS_ListFiles(mapName, ".tga", &numLightmaps);
if(len) {
if(!lightmapFiles || !numLightmaps)
{
lightmapFiles = ri.FS_ListFiles(mapName, ".tga", &numLightmaps);
if(!lightmapFiles || !numLightmaps){
ri.Printf(PRINT_WARNING, "WARNING: no External lightmap files found Falling back to Quake3 Lightmapping\n");
if ( !len ) {
return;
}
buf = fileBase + l->fileofs;
// we are about to upload textures
@ -155,6 +228,9 @@ static void R_LoadLightmaps( lump_t *l ) {
//FIXME: HACK: maps with only one lightmap turn up fullbright for some reason.
//this avoids this, but isn't the correct solution.
tr.numLightmaps++;
} else if ( tr.numLightmaps >= MAX_LIGHTMAPS ) { // 20051020 misantropia
ri.Printf( PRINT_WARNING, "WARNING: number of lightmaps > MAX_LIGHTMAPS\n" );
tr.numLightmaps = MAX_LIGHTMAPS;
}
// if we are in r_vertexLight mode, we don't need the lightmaps at all
@ -162,7 +238,6 @@ static void R_LoadLightmaps( lump_t *l ) {
return;
}
tr.lightmaps = ri.Hunk_Alloc( tr.numLightmaps * sizeof(image_t *), h_low );
for ( i = 0 ; i < tr.numLightmaps ; i++ ) {
// expand the 24 bit on-disk to 32 bit
buf_p = buf + i * LIGHTMAP_SIZE*LIGHTMAP_SIZE * 3;
@ -189,26 +264,52 @@ static void R_LoadLightmaps( lump_t *l ) {
HSVtoRGB( intensity, 1.00, 0.50, out );
image[j*4+0] = out[0] * 255;
image[j*4+1] = out[1] * 255;
image[j*4+2] = out[2] * 255;
image[j*4+3] = 255;
oldimage[j*4+0] = out[0] * 255;
oldimage[j*4+1] = out[1] * 255;
oldimage[j*4+2] = out[2] * 255;
oldimage[j*4+3] = 255;
sumIntensity += intensity;
}
} else {
for ( j = 0 ; j < LIGHTMAP_SIZE * LIGHTMAP_SIZE; j++ ) {
R_ColorShiftLightingBytes( &buf_p[j*3], &image[j*4] );
image[j*4+3] = 255;
R_ColorShiftLightingBytes( &buf_p[j*3], &oldimage[j*4] );
oldimage[j*4+3] = 255;
}
}
tr.lightmaps[i] = R_CreateImage( va("*lightmap%d",i), image,
tr.lightmaps[i] = R_CreateImage( va("*lightmap%d",i), oldimage,
LIGHTMAP_SIZE, LIGHTMAP_SIZE, qfalse, qfalse, GL_CLAMP_TO_EDGE );
}
if ( r_lightmap->integer == 2 ) {
ri.Printf( PRINT_ALL, "Brightest lightmap value: %d\n", ( int ) ( maxIntensity * 255 ) );
}
return;
}
}
} else {
qsort(lightmapFiles, numLightmaps, sizeof(char *), LightmapNameCompare);
if(numLightmaps > MAX_LIGHTMAPS)
{
ri.Error(ERR_DROP, "R_LoadLightmaps: too many lightmaps for %s", bspName);
numLightmaps = MAX_LIGHTMAPS;
}
tr.numLightmaps = numLightmaps;
ri.Printf(PRINT_ALL, "...loading %i lightmaps\n", tr.numLightmaps);
// we are about to upload textures
R_SyncRenderThread();
for(i = 0; i < numLightmaps; i++)
{
ri.Printf(PRINT_ALL, "...loading external lightmap '%s/%s'\n", mapName, lightmapFiles[i]);
tr.lightmaps[i] = R_FindImageFile(va("%s/%s", mapName, lightmapFiles[i]),qfalse,qfalse, GL_CLAMP_TO_EDGE );
}
}
}
@ -1848,7 +1949,7 @@ void RE_LoadWorldMap( const char *name ) {
// load into heap
R_LoadShaders( &header->lumps[LUMP_SHADERS] );
R_LoadLightmaps( &header->lumps[LUMP_LIGHTMAPS] );
R_LoadLightmaps( &header->lumps[LUMP_LIGHTMAPS], name );
R_LoadPlanes (&header->lumps[LUMP_PLANES]);
R_LoadFogs( &header->lumps[LUMP_FOGS], &header->lumps[LUMP_BRUSHES], &header->lumps[LUMP_BRUSHSIDES] );
R_LoadSurfaces( &header->lumps[LUMP_SURFACES], &header->lumps[LUMP_DRAWVERTS], &header->lumps[LUMP_DRAWINDEXES] );

3
code/renderer/tr_local.h
View file

@ -810,6 +810,7 @@ void R_Modellist_f (void);
extern refimport_t ri;
#define MAX_DRAWIMAGES 2048
#define MAX_LIGHTMAPS 256
#define MAX_SKINS 1024
@ -946,7 +947,7 @@ typedef struct {
shader_t *sunShader;
int numLightmaps;
image_t **lightmaps;
image_t *lightmaps[MAX_LIGHTMAPS];
trRefEntity_t *currentEntity;
trRefEntity_t worldEntity; // point currentEntity at this when rendering world