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OpenGL2: Non-square merged lightmaps.

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This commit is contained in:
SmileTheory 2016-10-10 03:06:03 -07:00
parent c80f341711
commit 239f539702
2 changed files with 47 additions and 85 deletions
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132
code/renderergl2/tr_bsp.c
View file

@ -201,13 +201,14 @@ R_LoadLightmaps
===============
*/
#define DEFAULT_LIGHTMAP_SIZE 128
#define MAX_LIGHTMAP_PAGES 2
static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
imgFlags_t imgFlags = IMGFLAG_NOLIGHTSCALE | IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE;
byte *buf, *buf_p;
dsurface_t *surf;
int len;
byte *image;
int i, j, numLightmaps, textureInternalFormat = 0;
int numLightmapsPerPage = 16;
float maxIntensity = 0;
double sumIntensity = 0;
@ -247,36 +248,24 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
if (tr.worldDeluxeMapping)
numLightmaps >>= 1;
if(numLightmaps == 1)
{
//FIXME: HACK: maps with only one lightmap turn up fullbright for some reason.
//this avoids this, but isn't the correct solution.
numLightmaps++;
}
else if (r_mergeLightmaps->integer && numLightmaps >= 1024 )
{
// FIXME: fat light maps don't support more than 1024 light maps
ri.Printf(PRINT_WARNING, "WARNING: number of lightmaps > 1024\n");
numLightmaps = 1024;
}
// use fat lightmaps of an appropriate size
// Use fat lightmaps of an appropriate size.
if (r_mergeLightmaps->integer)
{
tr.fatLightmapSize = 512;
tr.fatLightmapStep = tr.fatLightmapSize / tr.lightmapSize;
int maxLightmapsPerAxis = glConfig.maxTextureSize / tr.lightmapSize;
int lightmapCols = 4, lightmapRows = 4;
// at most MAX_LIGHTMAP_PAGES
while (tr.fatLightmapStep * tr.fatLightmapStep * MAX_LIGHTMAP_PAGES < numLightmaps && tr.fatLightmapSize != glConfig.maxTextureSize )
{
tr.fatLightmapSize <<= 1;
tr.fatLightmapStep = tr.fatLightmapSize / tr.lightmapSize;
}
// Increase width at first, then height.
while (lightmapCols * lightmapRows < numLightmaps && lightmapCols != maxLightmapsPerAxis)
lightmapCols <<= 1;
tr.numLightmaps = numLightmaps / (tr.fatLightmapStep * tr.fatLightmapStep);
while (lightmapCols * lightmapRows < numLightmaps && lightmapRows != maxLightmapsPerAxis)
lightmapRows <<= 1;
if (numLightmaps % (tr.fatLightmapStep * tr.fatLightmapStep) != 0)
tr.numLightmaps++;
tr.fatLightmapCols = lightmapCols;
tr.fatLightmapRows = lightmapRows;
numLightmapsPerPage = lightmapCols * lightmapRows;
tr.numLightmaps = (numLightmaps + (numLightmapsPerPage - 1)) / numLightmapsPerPage;
}
else
{
@ -286,9 +275,7 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
tr.lightmaps = ri.Hunk_Alloc( tr.numLightmaps * sizeof(image_t *), h_low );
if (tr.worldDeluxeMapping)
{
tr.deluxemaps = ri.Hunk_Alloc( tr.numLightmaps * sizeof(image_t *), h_low );
}
if (glRefConfig.floatLightmap)
textureInternalFormat = GL_RGBA16F_ARB;
@ -297,14 +284,15 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
if (r_mergeLightmaps->integer)
{
int width = tr.fatLightmapCols * tr.lightmapSize;
int height = tr.fatLightmapRows * tr.lightmapSize;
for (i = 0; i < tr.numLightmaps; i++)
{
tr.lightmaps[i] = R_CreateImage(va("_fatlightmap%d", i), NULL, tr.fatLightmapSize, tr.fatLightmapSize, IMGTYPE_COLORALPHA, IMGFLAG_NOLIGHTSCALE | IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, textureInternalFormat );
tr.lightmaps[i] = R_CreateImage(va("_fatlightmap%d", i), NULL, width, height, IMGTYPE_COLORALPHA, imgFlags, textureInternalFormat);
if (tr.worldDeluxeMapping)
{
tr.deluxemaps[i] = R_CreateImage(va("_fatdeluxemap%d", i), NULL, tr.fatLightmapSize, tr.fatLightmapSize, IMGTYPE_DELUXE, IMGFLAG_NOLIGHTSCALE | IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, 0 );
}
tr.deluxemaps[i] = R_CreateImage(va("_fatdeluxemap%d", i), NULL, width, height, IMGTYPE_DELUXE, imgFlags, 0);
}
}
@ -316,11 +304,11 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
if (r_mergeLightmaps->integer)
{
int lightmaponpage = i % (tr.fatLightmapStep * tr.fatLightmapStep);
xoff = (lightmaponpage % tr.fatLightmapStep) * tr.lightmapSize;
yoff = (lightmaponpage / tr.fatLightmapStep) * tr.lightmapSize;
int lightmaponpage = i % numLightmapsPerPage;
xoff = (lightmaponpage % tr.fatLightmapCols) * tr.lightmapSize;
yoff = (lightmaponpage / tr.fatLightmapCols) * tr.lightmapSize;
lightmapnum /= (tr.fatLightmapStep * tr.fatLightmapStep);
lightmapnum /= numLightmapsPerPage;
}
// if (tr.worldLightmapping)
@ -340,47 +328,37 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
if (hdrLightmap)
{
byte *p = hdrLightmap;
byte *p = hdrLightmap, *end = hdrLightmap + size;
//ri.Printf(PRINT_ALL, "found!\n");
/* FIXME: don't just skip over this header and actually parse it */
while (size && !(*p == '\n' && *(p+1) == '\n'))
{
size--;
while (p < end && !(*p == '\n' && *(p+1) == '\n'))
p++;
}
if (!size)
ri.Error(ERR_DROP, "Bad header for %s!", filename);
size -= 2;
p += 2;
while (size && !(*p == '\n'))
{
size--;
p++;
}
size--;
while (p < end && !(*p == '\n'))
p++;
buf_p = (byte *)p;
p++;
if (p >= end)
ri.Error(ERR_DROP, "Bad header for %s!", filename);
buf_p = p;
#if 0 // HDRFILE_RGBE
if (size != tr.lightmapSize * tr.lightmapSize * 4)
if ((int)(end - hdrLightmap) != tr.lightmapSize * tr.lightmapSize * 4)
ri.Error(ERR_DROP, "Bad size for %s (%i)!", filename, size);
#else // HDRFILE_FLOAT
if (size != tr.lightmapSize * tr.lightmapSize * 12)
if ((int)(end - hdrLightmap) != tr.lightmapSize * tr.lightmapSize * 12)
ri.Error(ERR_DROP, "Bad size for %s (%i)!", filename, size);
#endif
}
else
{
if (tr.worldDeluxeMapping)
buf_p = buf + (i * 2) * tr.lightmapSize * tr.lightmapSize * 3;
else
buf_p = buf + i * tr.lightmapSize * tr.lightmapSize * 3;
int imgOffset = tr.worldDeluxeMapping ? i * 2 : i;
buf_p = buf + imgOffset * tr.lightmapSize * tr.lightmapSize * 3;
}
for ( j = 0 ; j < tr.lightmapSize * tr.lightmapSize; j++ )
@ -475,7 +453,7 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
if (r_mergeLightmaps->integer)
R_UpdateSubImage(tr.lightmaps[lightmapnum], image, xoff, yoff, tr.lightmapSize, tr.lightmapSize);
else
tr.lightmaps[i] = R_CreateImage(va("*lightmap%d", i), image, tr.lightmapSize, tr.lightmapSize, IMGTYPE_COLORALPHA, IMGFLAG_NOLIGHTSCALE | IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, textureInternalFormat );
tr.lightmaps[i] = R_CreateImage(va("*lightmap%d", i), image, tr.lightmapSize, tr.lightmapSize, IMGTYPE_COLORALPHA, imgFlags, textureInternalFormat );
if (hdrLightmap)
ri.FS_FreeFile(hdrLightmap);
@ -502,13 +480,9 @@ static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
}
if (r_mergeLightmaps->integer)
{
R_UpdateSubImage(tr.deluxemaps[lightmapnum], image, xoff, yoff, tr.lightmapSize, tr.lightmapSize );
}
else
{
tr.deluxemaps[i] = R_CreateImage(va("*deluxemap%d", i), image, tr.lightmapSize, tr.lightmapSize, IMGTYPE_DELUXE, IMGFLAG_NOLIGHTSCALE | IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, 0 );
}
tr.deluxemaps[i] = R_CreateImage(va("*deluxemap%d", i), image, tr.lightmapSize, tr.lightmapSize, IMGTYPE_DELUXE, imgFlags, 0 );
}
}
@ -528,15 +502,10 @@ static float FatPackU(float input, int lightmapnum)
if (tr.worldDeluxeMapping)
lightmapnum >>= 1;
if(tr.fatLightmapSize > 0)
if (tr.fatLightmapCols > 0)
{
int x;
lightmapnum %= (tr.fatLightmapStep * tr.fatLightmapStep);
x = lightmapnum % tr.fatLightmapStep;
return (input / ((float)tr.fatLightmapStep)) + ((1.0 / ((float)tr.fatLightmapStep)) * (float)x);
lightmapnum %= (tr.fatLightmapCols * tr.fatLightmapRows);
return (input + (lightmapnum % tr.fatLightmapCols)) / (float)(tr.fatLightmapCols);
}
return input;
@ -550,15 +519,10 @@ static float FatPackV(float input, int lightmapnum)
if (tr.worldDeluxeMapping)
lightmapnum >>= 1;
if(tr.fatLightmapSize > 0)
if (tr.fatLightmapCols > 0)
{
int y;
lightmapnum %= (tr.fatLightmapStep * tr.fatLightmapStep);
y = lightmapnum / tr.fatLightmapStep;
return (input / ((float)tr.fatLightmapStep)) + ((1.0 / ((float)tr.fatLightmapStep)) * (float)y);
lightmapnum %= (tr.fatLightmapCols * tr.fatLightmapRows);
return (input + (lightmapnum / tr.fatLightmapCols)) / (float)(tr.fatLightmapRows);
}
return input;
@ -573,10 +537,8 @@ static int FatLightmap(int lightmapnum)
if (tr.worldDeluxeMapping)
lightmapnum >>= 1;
if (tr.fatLightmapSize > 0)
{
return lightmapnum / (tr.fatLightmapStep * tr.fatLightmapStep);
}
if (tr.fatLightmapCols > 0)
return lightmapnum / (tr.fatLightmapCols * tr.fatLightmapRows);
return lightmapnum;
}

4
code/renderergl2/tr_local.h
View file

@ -1550,8 +1550,8 @@ typedef struct {
image_t **lightmaps;
image_t **deluxemaps;
int fatLightmapSize;
int fatLightmapStep;
int fatLightmapCols;
int fatLightmapRows;
int numCubemaps;
cubemap_t *cubemaps;