From bb7a231e19587d8baeb36a6bf8f54ef35ce8b0a0 Mon Sep 17 00:00:00 2001 From: divverent Date: Sat, 13 Sep 2008 06:50:30 +0000 Subject: [PATCH] experimental (not yet tested) support for q3map2 -lightmapsize written external higher-resolution lightmaps git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@8504 d7cf8633-e32d-0410-b094-e92efae38249 --- model_brush.c | 134 ++++++++++++++++++++++++++++++++++++++----------- model_shared.h | 3 ++ 2 files changed, 108 insertions(+), 29 deletions(-) diff --git a/model_brush.c b/model_brush.c index 284e4d68..2aea6f85 100644 --- a/model_brush.c +++ b/model_brush.c @@ -4455,20 +4455,76 @@ static void Mod_Q3BSP_LoadTriangles(lump_t *l) static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump) { - q3dlightmap_t *in; + q3dlightmap_t *input_pointer; int i, j, k, count, power, power2, mask, endlightmap, mergewidth, mergeheight; unsigned char *c; - unsigned char convertedpixels[128*128*4]; - if (!l->filelen) - return; + unsigned char *convertedpixels; + char mapname[MAX_QPATH]; + int size, bytesperpixel, rgbmap[3]; + qboolean external; + unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits) + + // defaults for q3bsp + size = 128; + bytesperpixel = 3; + rgbmap[0] = 2; + rgbmap[1] = 1; + rgbmap[2] = 0; + external = false; + loadmodel->brushq3.lightmapsize = 128; + if (cls.state == ca_dedicated) return; - in = (q3dlightmap_t *)(mod_base + l->fileofs); - if (l->filelen % sizeof(*in)) - Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name); - count = l->filelen / sizeof(*in); - loadmodel->brushq3.num_originallightmaps = count; + + FS_StripExtension(loadmodel->name, mapname, sizeof(mapname)); + inpixels[0] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, 0), false, false); + if(inpixels[0]) + { + // using EXTERNAL lightmaps instead + if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height) + { + Mem_Free(inpixels[0]); + Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name); + } + + size = image_width; + bytesperpixel = 4; + rgbmap[0] = 0; + rgbmap[1] = 1; + rgbmap[2] = 2; + external = true; + + for(count = 1; ; ++count) + { + inpixels[count] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, count), false, false); + if(!inpixels[count]) + break; // we got all of them + if(image_width != size || image_height != size) + { + for(i = 0; i <= count; ++i) + Mem_Free(inpixels[i]); + Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name); + } + } + } + else + { + if (!l->filelen) + { + return; + } + input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*input_pointer)) + Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*input_pointer); + loadmodel->brushq3.num_originallightmaps = count; + for(i = 0; i < count; ++i) + inpixels[i] = input_pointer[i].rgb; + } + + convertedpixels = Mem_Alloc(tempmempool, size*size*4); // TODO free this + loadmodel->brushq3.lightmapsize = size; // now check the surfaces to see if any of them index an odd numbered // lightmap, if so this is not a deluxemapped bsp file @@ -4510,11 +4566,17 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump) // blank lightmaps, which must be handled properly as well if (endlightmap == 1 && count > 1) { - c = in[1].rgb; - for (i = 0;i < 128*128*3;i++) - if (c[i]) + c = inpixels[1]; + for (i = 0;i < size*size;i++) + { + if (c[bytesperpixel*i + rgbmap[0]]) break; - if (i == 128*128*3) + if (c[bytesperpixel*i + rgbmap[1]]) + break; + if (c[bytesperpixel*i + rgbmap[2]]) + break; + } + if (i == size*size) { // all pixels in the unused lightmap were black... loadmodel->brushq3.deluxemapping = false; @@ -4527,6 +4589,14 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump) loadmodel->brushq3.num_lightmapmergepower = 0; for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (128 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++) loadmodel->brushq3.num_lightmapmergepower = power; + + // as the lightmap size may actually be another power of 2, adjust for this + // (and interpret it as the power for 128x128 lightmaps above) + for(i = 0; (128 << i) < size; ++i) + loadmodel->brushq3.num_lightmapmergepower -= 1; + if(loadmodel->brushq3.num_lightmapmergepower < 0) + loadmodel->brushq3.num_lightmapmergepower = 0; + loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower; loadmodel->brushq3.num_mergedlightmaps = ((count >> loadmodel->brushq3.deluxemapping) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2); @@ -4545,11 +4615,11 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump) { // figure out which merged lightmap texture this fits into int lightmapindex = i >> (loadmodel->brushq3.deluxemapping + power2); - for (k = 0;k < 128*128;k++) + for (k = 0;k < size*size;k++) { - convertedpixels[k*4+2] = in[i].rgb[k*3+0]; - convertedpixels[k*4+1] = in[i].rgb[k*3+1]; - convertedpixels[k*4+0] = in[i].rgb[k*3+2]; + convertedpixels[k*4+0] = inpixels[i][k*bytesperpixel+rgbmap[0]]; + convertedpixels[k*4+1] = inpixels[i][k*bytesperpixel+rgbmap[1]]; + convertedpixels[k*4+2] = inpixels[i][k*bytesperpixel+rgbmap[2]]; convertedpixels[k*4+3] = 255; } if (loadmodel->brushq3.num_lightmapmergepower > 0) @@ -4558,7 +4628,7 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump) if (!loadmodel->brushq3.data_lightmaps[lightmapindex]) { // create a lightmap only as large as necessary to hold the - // remaining 128x128 blocks + // remaining size*size blocks // if there are multiple merged lightmap textures then they will // all be full size except the last one which may be smaller // because it only needs to the remaining blocks, and it will often @@ -4569,28 +4639,34 @@ static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump) for (mergeheight = 1;mergewidth*mergeheight < j && mergeheight < (1 << power);mergeheight *= 2) ; if (developer_loading.integer) - Con_Printf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*128, mergeheight*128, min(j, mergewidth*mergeheight), mergewidth*mergeheight); - loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL); + Con_Printf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*size, mergeheight*size, min(j, mergewidth*mergeheight), mergewidth*mergeheight); + loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL); if (loadmodel->brushq3.data_deluxemaps) - loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL); + loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL); } - mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128; - mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128; + mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size; + mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size; j = (i >> loadmodel->brushq3.deluxemapping) & ((1 << power2) - 1); if (loadmodel->brushq3.deluxemapping && (i & 1)) - R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128); + R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size); else - R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128); + R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size); } else { // figure out which merged lightmap texture this fits into if (loadmodel->brushq3.deluxemapping && (i & 1)) - loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), 128, 128, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL); + loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL); else - loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), 128, 128, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL); + loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL); } } + + if(external) + { + for(i = 0; i < count; ++i) + Mem_Free(inpixels[i]); + } } static void Mod_Q3BSP_LoadFaces(lump_t *l) @@ -4899,8 +4975,8 @@ static void Mod_Q3BSP_LoadFaces(lump_t *l) { // figure out which part of the merged lightmap this fits into int lightmapindex = LittleLong(in->lightmapindex) >> loadmodel->brushq3.deluxemapping; - int mergewidth = R_TextureWidth(out->lightmaptexture) / 128; - int mergeheight = R_TextureHeight(out->lightmaptexture) / 128; + int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize; + int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize; lightmapindex &= mergewidth * mergeheight - 1; lightmaptcscale[0] = 1.0f / mergewidth; lightmaptcscale[1] = 1.0f / mergeheight; diff --git a/model_shared.h b/model_shared.h index c417733b..e8b918c0 100644 --- a/model_shared.h +++ b/model_shared.h @@ -776,6 +776,9 @@ typedef struct model_brushq3_s // true if the detected deluxemaps are the modelspace kind, rather than // the faster tangentspace kind qboolean deluxemapping_modelspace; + // size of lightmaps (128 by default, but may be another poweroftwo if + // external lightmaps are used (q3map2 -lightmapsize) + int lightmapsize; } model_brushq3_t; -- 2.39.2