// SONIC ROBO BLAST 2 //----------------------------------------------------------------------------- // Copyright (C) 1993-1996 by id Software, Inc. // Copyright (C) 1998-2000 by DooM Legacy Team. // Copyright (C) 1999-2020 by Sonic Team Junior. // // This program is free software distributed under the // terms of the GNU General Public License, version 2. // See the 'LICENSE' file for more details. //----------------------------------------------------------------------------- /// \file r_textures.c /// \brief Texture generation. #include "doomdef.h" #include "g_game.h" #include "i_video.h" #include "r_local.h" #include "r_sky.h" #include "p_local.h" #include "m_misc.h" #include "r_data.h" #include "r_textures.h" #include "r_picformats.h" #include "w_wad.h" #include "z_zone.h" #include "p_setup.h" // levelflats #include "byteptr.h" #include "dehacked.h" // I don't know what this is even for, but r_data.c had it. #ifdef _WIN32 #include // alloca(sizeof) #endif #ifdef HWRENDER #include "hardware/hw_main.h" // HWR_LoadTextures #endif #include // // TEXTURE_T CACHING // When a texture is first needed, it counts the number of composite columns // required in the texture and allocates space for a column directory and // any new columns. // The directory will simply point inside other patches if there is only one // patch in a given column, but any columns with multiple patches will have // new column_ts generated. // INT32 numtextures = 0; // total number of textures found, // size of following tables texture_t **textures = NULL; UINT32 **texturecolumnofs; // column offset lookup table for each texture UINT8 **texturecache; // graphics data for each generated full-size texture INT32 *texturewidth; fixed_t *textureheight; // needed for texture pegging INT32 *texturetranslation; // Painfully simple texture id cacheing to make maps load faster. :3 static struct { char name[9]; INT32 id; } *tidcache = NULL; static INT32 tidcachelen = 0; // // R_DrawColumnInCache // Clip and draw a column from a patch into a cached post. // static inline void R_DrawColumnInCache(column_t *patch, UINT8 *cache, texpatch_t *originPatch, INT32 cacheheight, INT32 patchheight) { INT32 count, position; UINT8 *source; INT32 topdelta, prevdelta = -1; INT32 originy = originPatch->originy; (void)patchheight; // This parameter is unused while (patch->topdelta != 0xff) { topdelta = patch->topdelta; if (topdelta <= prevdelta) topdelta += prevdelta; prevdelta = topdelta; source = (UINT8 *)patch + 3; count = patch->length; position = originy + topdelta; if (position < 0) { count += position; source -= position; // start further down the column position = 0; } if (position + count > cacheheight) count = cacheheight - position; if (count > 0) M_Memcpy(cache + position, source, count); patch = (column_t *)((UINT8 *)patch + patch->length + 4); } } // // R_DrawFlippedColumnInCache // Similar to R_DrawColumnInCache; it draws the column inverted, however. // static inline void R_DrawFlippedColumnInCache(column_t *patch, UINT8 *cache, texpatch_t *originPatch, INT32 cacheheight, INT32 patchheight) { INT32 count, position; UINT8 *source, *dest; INT32 topdelta, prevdelta = -1; INT32 originy = originPatch->originy; while (patch->topdelta != 0xff) { topdelta = patch->topdelta; if (topdelta <= prevdelta) topdelta += prevdelta; prevdelta = topdelta; topdelta = patchheight-patch->length-topdelta; source = (UINT8 *)patch + 2 + patch->length; // patch + 3 + (patch->length-1) count = patch->length; position = originy + topdelta; if (position < 0) { count += position; source += position; // start further UP the column position = 0; } if (position + count > cacheheight) count = cacheheight - position; dest = cache + position; if (count > 0) { for (; dest < cache + position + count; --source) *dest++ = *source; } patch = (column_t *)((UINT8 *)patch + patch->length + 4); } } // // R_DrawBlendColumnInCache // Draws a translucent column into the cache, applying a half-cooked equation to get a proper translucency value (Needs code in R_GenerateTexture()). // static inline void R_DrawBlendColumnInCache(column_t *patch, UINT8 *cache, texpatch_t *originPatch, INT32 cacheheight, INT32 patchheight) { INT32 count, position; UINT8 *source, *dest; INT32 topdelta, prevdelta = -1; INT32 originy = originPatch->originy; (void)patchheight; // This parameter is unused while (patch->topdelta != 0xff) { topdelta = patch->topdelta; if (topdelta <= prevdelta) topdelta += prevdelta; prevdelta = topdelta; source = (UINT8 *)patch + 3; count = patch->length; position = originy + topdelta; if (position < 0) { count += position; source -= position; // start further down the column position = 0; } if (position + count > cacheheight) count = cacheheight - position; dest = cache + position; if (count > 0) { for (; dest < cache + position + count; source++, dest++) if (*source != 0xFF) *dest = ASTBlendPixel_8bpp(*dest, *source, originPatch->style, originPatch->alpha); } patch = (column_t *)((UINT8 *)patch + patch->length + 4); } } // // R_DrawBlendFlippedColumnInCache // Similar to the one above except that the column is inverted. // static inline void R_DrawBlendFlippedColumnInCache(column_t *patch, UINT8 *cache, texpatch_t *originPatch, INT32 cacheheight, INT32 patchheight) { INT32 count, position; UINT8 *source, *dest; INT32 topdelta, prevdelta = -1; INT32 originy = originPatch->originy; while (patch->topdelta != 0xff) { topdelta = patch->topdelta; if (topdelta <= prevdelta) topdelta += prevdelta; prevdelta = topdelta; topdelta = patchheight-patch->length-topdelta; source = (UINT8 *)patch + 2 + patch->length; // patch + 3 + (patch->length-1) count = patch->length; position = originy + topdelta; if (position < 0) { count += position; source += position; // start further UP the column position = 0; } if (position + count > cacheheight) count = cacheheight - position; dest = cache + position; if (count > 0) { for (; dest < cache + position + count; --source, dest++) if (*source != 0xFF) *dest = ASTBlendPixel_8bpp(*dest, *source, originPatch->style, originPatch->alpha); } patch = (column_t *)((UINT8 *)patch + patch->length + 4); } } // // R_GenerateTexture // // Allocate space for full size texture, either single patch or 'composite' // Build the full textures from patches. // The texture caching system is a little more hungry of memory, but has // been simplified for the sake of highcolor (lol), dynamic ligthing, & speed. // // This is not optimised, but it's supposed to be executed only once // per level, when enough memory is available. // UINT8 *R_GenerateTexture(size_t texnum) { UINT8 *block; UINT8 *blocktex; texture_t *texture; texpatch_t *patch; patch_t *realpatch; UINT8 *pdata; int x, x1, x2, i, width, height; size_t blocksize; column_t *patchcol; UINT8 *colofs; UINT16 wadnum; lumpnum_t lumpnum; size_t lumplength; I_Assert(texnum <= (size_t)numtextures); texture = textures[texnum]; I_Assert(texture != NULL); // allocate texture column offset lookup // single-patch textures can have holes in them and may be used on // 2sided lines so they need to be kept in 'packed' format // BUT this is wrong for skies and walls with over 255 pixels, // so check if there's holes and if not strip the posts. if (texture->patchcount == 1) { boolean holey = false; patch = texture->patches; wadnum = patch->wad; lumpnum = patch->lump; lumplength = W_LumpLengthPwad(wadnum, lumpnum); pdata = W_CacheLumpNumPwad(wadnum, lumpnum, PU_CACHE); realpatch = (patch_t *)pdata; #ifndef NO_PNG_LUMPS if (Picture_IsLumpPNG((UINT8 *)realpatch, lumplength)) goto multipatch; #endif #ifdef WALLFLATS if (texture->type == TEXTURETYPE_FLAT) goto multipatch; #endif // Check the patch for holes. if (texture->width > SHORT(realpatch->width) || texture->height > SHORT(realpatch->height)) holey = true; colofs = (UINT8 *)realpatch->columnofs; for (x = 0; x < texture->width && !holey; x++) { column_t *col = (column_t *)((UINT8 *)realpatch + LONG(*(UINT32 *)&colofs[x<<2])); INT32 topdelta, prevdelta = -1, y = 0; while (col->topdelta != 0xff) { topdelta = col->topdelta; if (topdelta <= prevdelta) topdelta += prevdelta; prevdelta = topdelta; if (topdelta > y) break; y = topdelta + col->length + 1; col = (column_t *)((UINT8 *)col + col->length + 4); } if (y < texture->height) holey = true; // this texture is HOLEy! D: } // If the patch uses transparency, we have to save it this way. if (holey) { texture->holes = true; texture->flip = patch->flip; blocksize = lumplength; block = Z_Calloc(blocksize, PU_STATIC, // will change tag at end of this function &texturecache[texnum]); M_Memcpy(block, realpatch, blocksize); texturememory += blocksize; // use the patch's column lookup colofs = (block + 8); texturecolumnofs[texnum] = (UINT32 *)colofs; blocktex = block; if (patch->flip & 1) // flip the patch horizontally { UINT8 *realcolofs = (UINT8 *)realpatch->columnofs; for (x = 0; x < texture->width; x++) *(UINT32 *)&colofs[x<<2] = realcolofs[( texture->width-1-x )<<2]; // swap with the offset of the other side of the texture } // we can't as easily flip the patch vertically sadly though, // we have wait until the texture itself is drawn to do that for (x = 0; x < texture->width; x++) *(UINT32 *)&colofs[x<<2] = LONG(LONG(*(UINT32 *)&colofs[x<<2]) + 3); goto done; } // Otherwise, do multipatch format. } // multi-patch textures (or 'composite') multipatch: texture->holes = false; texture->flip = 0; blocksize = (texture->width * 4) + (texture->width * texture->height); texturememory += blocksize; block = Z_Malloc(blocksize+1, PU_STATIC, &texturecache[texnum]); memset(block, TRANSPARENTPIXEL, blocksize+1); // Transparency hack // columns lookup table colofs = block; texturecolumnofs[texnum] = (UINT32 *)colofs; // texture data after the lookup table blocktex = block + (texture->width*4); // Composite the columns together. for (i = 0, patch = texture->patches; i < texture->patchcount; i++, patch++) { boolean dealloc = true; static void (*ColumnDrawerPointer)(column_t *, UINT8 *, texpatch_t *, INT32, INT32); // Column drawing function pointer. if (patch->style != AST_COPY) ColumnDrawerPointer = (patch->flip & 2) ? R_DrawBlendFlippedColumnInCache : R_DrawBlendColumnInCache; else ColumnDrawerPointer = (patch->flip & 2) ? R_DrawFlippedColumnInCache : R_DrawColumnInCache; wadnum = patch->wad; lumpnum = patch->lump; pdata = W_CacheLumpNumPwad(wadnum, lumpnum, PU_CACHE); lumplength = W_LumpLengthPwad(wadnum, lumpnum); realpatch = (patch_t *)pdata; dealloc = true; #ifndef NO_PNG_LUMPS if (Picture_IsLumpPNG((UINT8 *)realpatch, lumplength)) { // Dummy variables. INT32 pngwidth, pngheight; realpatch = (patch_t *)Picture_PNGConvert((UINT8 *)realpatch, PICFMT_PATCH, &pngwidth, &pngheight, NULL, NULL, lumplength, NULL, 0); } else #endif #ifdef WALLFLATS if (texture->type == TEXTURETYPE_FLAT) realpatch = (patch_t *)Picture_Convert(PICFMT_FLAT, pdata, PICFMT_PATCH, 0, NULL, texture->width, texture->height, 0, 0, 0); else #endif { (void)lumplength; dealloc = false; } x1 = patch->originx; width = SHORT(realpatch->width); height = SHORT(realpatch->height); x2 = x1 + width; if (x1 > texture->width || x2 < 0) { if (dealloc) Z_Free(realpatch); continue; // patch not located within texture's x bounds, ignore } if (patch->originy > texture->height || (patch->originy + height) < 0) { if (dealloc) Z_Free(realpatch); continue; // patch not located within texture's y bounds, ignore } // patch is actually inside the texture! // now check if texture is partly off-screen and adjust accordingly // left edge if (x1 < 0) x = 0; else x = x1; // right edge if (x2 > texture->width) x2 = texture->width; for (; x < x2; x++) { if (patch->flip & 1) patchcol = (column_t *)((UINT8 *)realpatch + LONG(realpatch->columnofs[(x1+width-1)-x])); else patchcol = (column_t *)((UINT8 *)realpatch + LONG(realpatch->columnofs[x-x1])); // generate column ofset lookup *(UINT32 *)&colofs[x<<2] = LONG((x * texture->height) + (texture->width*4)); ColumnDrawerPointer(patchcol, block + LONG(*(UINT32 *)&colofs[x<<2]), patch, texture->height, height); } if (dealloc) Z_Free(realpatch); } done: // Now that the texture has been built in column cache, it is purgable from zone memory. Z_ChangeTag(block, PU_CACHE); return blocktex; } // // R_GenerateTextureAsFlat // // Generates a flat picture for a texture. // UINT8 *R_GenerateTextureAsFlat(size_t texnum) { texture_t *texture = textures[texnum]; UINT8 *converted = NULL; size_t size = (texture->width * texture->height); // The flat picture for this texture was not generated yet. if (!texture->flat) { // Well, let's do it now, then. texture->flat = Z_Malloc(size, PU_STATIC, NULL); // Picture_TextureToFlat handles everything for us. converted = (UINT8 *)Picture_TextureToFlat(texnum); M_Memcpy(texture->flat, converted, size); Z_Free(converted); } return texture->flat; } // // R_GetTextureNum // // Returns the actual texture id that we should use. // This can either be texnum, the current frame for texnum's anim (if animated), // or 0 if not valid. // INT32 R_GetTextureNum(INT32 texnum) { if (texnum < 0 || texnum >= numtextures) return 0; return texturetranslation[texnum]; } // // R_CheckTextureCache // // Use this if you need to make sure the texture is cached before R_GetColumn calls // e.g.: midtextures and FOF walls // void R_CheckTextureCache(INT32 tex) { if (!texturecache[tex]) R_GenerateTexture(tex); } // // R_GetColumn // UINT8 *R_GetColumn(fixed_t tex, INT32 col) { UINT8 *data; INT32 width = texturewidth[tex]; if (width & (width - 1)) col = (UINT32)col % width; else col &= (width - 1); data = texturecache[tex]; if (!data) data = R_GenerateTexture(tex); return data + LONG(texturecolumnofs[tex][col]); } void *R_GetFlat(lumpnum_t flatlumpnum) { return W_CacheLumpNum(flatlumpnum, PU_CACHE); } // // R_GetLevelFlat // // If needed, convert a texture or patch to a flat. // void *R_GetLevelFlat(levelflat_t *levelflat) { boolean isleveltexture = (levelflat->type == LEVELFLAT_TEXTURE); texture_t *texture = (isleveltexture ? textures[levelflat->u.texture.num] : NULL); boolean texturechanged = (isleveltexture ? (levelflat->u.texture.num != levelflat->u.texture.lastnum) : false); UINT8 *flatdata = NULL; // Check if the texture changed. if (isleveltexture && (!texturechanged)) { if (texture->flat) { flatdata = texture->flat; ds_flatwidth = texture->width; ds_flatheight = texture->height; texturechanged = false; } else texturechanged = true; } // If the texture changed, or the flat wasn't generated, convert. if (levelflat->picture == NULL || texturechanged) { // Level texture if (isleveltexture) { levelflat->picture = R_GenerateTextureAsFlat(levelflat->u.texture.num); ds_flatwidth = levelflat->width = texture->width; ds_flatheight = levelflat->height = texture->height; } else { #ifndef NO_PNG_LUMPS if (levelflat->type == LEVELFLAT_PNG) { INT32 pngwidth, pngheight; levelflat->picture = Picture_PNGConvert(W_CacheLumpNum(levelflat->u.flat.lumpnum, PU_CACHE), PICFMT_FLAT, &pngwidth, &pngheight, NULL, NULL, W_LumpLength(levelflat->u.flat.lumpnum), NULL, 0); levelflat->width = (UINT16)pngwidth; levelflat->height = (UINT16)pngheight; ds_flatwidth = levelflat->width; ds_flatheight = levelflat->height; } else #endif if (levelflat->type == LEVELFLAT_PATCH) { UINT8 *converted; size_t size; patch_t *patch = W_CacheLumpNum(levelflat->u.flat.lumpnum, PU_CACHE); levelflat->width = ds_flatwidth = SHORT(patch->width); levelflat->height = ds_flatheight = SHORT(patch->height); levelflat->picture = Z_Malloc(levelflat->width * levelflat->height, PU_LEVEL, NULL); converted = Picture_FlatConvert(PICFMT_PATCH, patch, PICFMT_FLAT, 0, &size, levelflat->width, levelflat->height, patch->topoffset, patch->leftoffset, 0); M_Memcpy(levelflat->picture, converted, size); Z_Free(converted); } } } else { ds_flatwidth = levelflat->width; ds_flatheight = levelflat->height; } levelflat->u.texture.lastnum = levelflat->u.texture.num; if (flatdata == NULL) flatdata = levelflat->picture; return flatdata; } // // R_CheckPowersOfTwo // // Self-explanatory? // boolean R_CheckPowersOfTwo(void) { boolean wpow2 = (!(ds_flatwidth & (ds_flatwidth - 1))); boolean hpow2 = (!(ds_flatheight & (ds_flatheight - 1))); // Initially, the flat isn't powers-of-two-sized. ds_powersoftwo = false; // But if the width and height are powers of two, // and are EQUAL, then it's okay :] if ((ds_flatwidth == ds_flatheight) && (wpow2 && hpow2)) ds_powersoftwo = true; // Just return ds_powersoftwo. return ds_powersoftwo; } // // R_CheckFlatLength // // Determine the flat's dimensions from its lump length. // void R_CheckFlatLength(size_t size) { switch (size) { case 4194304: // 2048x2048 lump nflatmask = 0x3FF800; nflatxshift = 21; nflatyshift = 10; nflatshiftup = 5; ds_flatwidth = ds_flatheight = 2048; break; case 1048576: // 1024x1024 lump nflatmask = 0xFFC00; nflatxshift = 22; nflatyshift = 12; nflatshiftup = 6; ds_flatwidth = ds_flatheight = 1024; break; case 262144:// 512x512 lump nflatmask = 0x3FE00; nflatxshift = 23; nflatyshift = 14; nflatshiftup = 7; ds_flatwidth = ds_flatheight = 512; break; case 65536: // 256x256 lump nflatmask = 0xFF00; nflatxshift = 24; nflatyshift = 16; nflatshiftup = 8; ds_flatwidth = ds_flatheight = 256; break; case 16384: // 128x128 lump nflatmask = 0x3F80; nflatxshift = 25; nflatyshift = 18; nflatshiftup = 9; ds_flatwidth = ds_flatheight = 128; break; case 1024: // 32x32 lump nflatmask = 0x3E0; nflatxshift = 27; nflatyshift = 22; nflatshiftup = 11; ds_flatwidth = ds_flatheight = 32; break; default: // 64x64 lump nflatmask = 0xFC0; nflatxshift = 26; nflatyshift = 20; nflatshiftup = 10; ds_flatwidth = ds_flatheight = 64; break; } } // // Empty the texture cache (used for load wad at runtime) // void R_FlushTextureCache(void) { INT32 i; if (numtextures) for (i = 0; i < numtextures; i++) Z_Free(texturecache[i]); } // Need these prototypes for later; defining them here instead of r_textures.h so they're "private" int R_CountTexturesInTEXTURESLump(UINT16 wadNum, UINT16 lumpNum); void R_ParseTEXTURESLump(UINT16 wadNum, UINT16 lumpNum, INT32 *index); #ifdef WALLFLATS static INT32 Rloadflats (INT32 i, INT32 w) { UINT16 j; UINT16 texstart, texend; texture_t *texture; texpatch_t *patch; // Yes if (wadfiles[w]->type == RET_PK3) { texstart = W_CheckNumForFolderStartPK3("flats/", (UINT16)w, 0); texend = W_CheckNumForFolderEndPK3("flats/", (UINT16)w, texstart); } else { texstart = W_CheckNumForMarkerStartPwad("F_START", (UINT16)w, 0); texend = W_CheckNumForNamePwad("F_END", (UINT16)w, texstart); } if (!( texstart == INT16_MAX || texend == INT16_MAX )) { // Work through each lump between the markers in the WAD. for (j = 0; j < (texend - texstart); j++) { UINT8 *flatlump; UINT16 wadnum = (UINT16)w; lumpnum_t lumpnum = texstart + j; size_t lumplength; size_t flatsize = 0; if (wadfiles[w]->type == RET_PK3) { if (W_IsLumpFolder(wadnum, lumpnum)) // Check if lump is a folder continue; // If it is then SKIP IT } flatlump = W_CacheLumpNumPwad(wadnum, lumpnum, PU_CACHE); lumplength = W_LumpLengthPwad(wadnum, lumpnum); switch (lumplength) { case 4194304: // 2048x2048 lump flatsize = 2048; break; case 1048576: // 1024x1024 lump flatsize = 1024; break; case 262144:// 512x512 lump flatsize = 512; break; case 65536: // 256x256 lump flatsize = 256; break; case 16384: // 128x128 lump flatsize = 128; break; case 1024: // 32x32 lump flatsize = 32; break; default: // 64x64 lump flatsize = 64; break; } //CONS_Printf("\n\"%s\" is a flat, dimensions %d x %d",W_CheckNameForNumPwad((UINT16)w,texstart+j),flatsize,flatsize); texture = textures[i] = Z_Calloc(sizeof(texture_t) + sizeof(texpatch_t), PU_STATIC, NULL); // Set texture properties. M_Memcpy(texture->name, W_CheckNameForNumPwad(wadnum, lumpnum), sizeof(texture->name)); #ifndef NO_PNG_LUMPS if (Picture_IsLumpPNG((UINT8 *)flatlump, lumplength)) { INT16 width, height; Picture_PNGDimensions((UINT8 *)flatlump, &width, &height, lumplength); texture->width = width; texture->height = height; } else #endif texture->width = texture->height = flatsize; texture->type = TEXTURETYPE_FLAT; texture->patchcount = 1; texture->holes = false; texture->flip = 0; // Allocate information for the texture's patches. patch = &texture->patches[0]; patch->originx = patch->originy = 0; patch->wad = (UINT16)w; patch->lump = texstart + j; patch->flip = 0; Z_Unlock(flatlump); texturewidth[i] = texture->width; textureheight[i] = texture->height << FRACBITS; i++; } } return i; } #endif/*WALLFLATS*/ #define TX_START "TX_START" #define TX_END "TX_END" static INT32 Rloadtextures (INT32 i, INT32 w) { UINT16 j; UINT16 texstart, texend, texturesLumpPos; texture_t *texture; patch_t *patchlump; texpatch_t *patch; // Get the lump numbers for the markers in the WAD, if they exist. if (wadfiles[w]->type == RET_PK3) { texstart = W_CheckNumForFolderStartPK3("textures/", (UINT16)w, 0); texend = W_CheckNumForFolderEndPK3("textures/", (UINT16)w, texstart); texturesLumpPos = W_CheckNumForNamePwad("TEXTURES", (UINT16)w, 0); while (texturesLumpPos != INT16_MAX) { R_ParseTEXTURESLump(w, texturesLumpPos, &i); texturesLumpPos = W_CheckNumForNamePwad("TEXTURES", (UINT16)w, texturesLumpPos + 1); } } else { texstart = W_CheckNumForMarkerStartPwad(TX_START, (UINT16)w, 0); texend = W_CheckNumForNamePwad(TX_END, (UINT16)w, 0); texturesLumpPos = W_CheckNumForNamePwad("TEXTURES", (UINT16)w, 0); if (texturesLumpPos != INT16_MAX) R_ParseTEXTURESLump(w, texturesLumpPos, &i); } if (!( texstart == INT16_MAX || texend == INT16_MAX )) { // Work through each lump between the markers in the WAD. for (j = 0; j < (texend - texstart); j++) { UINT16 wadnum = (UINT16)w; lumpnum_t lumpnum = texstart + j; #ifndef NO_PNG_LUMPS size_t lumplength; #endif if (wadfiles[w]->type == RET_PK3) { if (W_IsLumpFolder(wadnum, lumpnum)) // Check if lump is a folder continue; // If it is then SKIP IT } patchlump = W_CacheLumpNumPwad(wadnum, lumpnum, PU_CACHE); #ifndef NO_PNG_LUMPS lumplength = W_LumpLengthPwad(wadnum, lumpnum); #endif //CONS_Printf("\n\"%s\" is a single patch, dimensions %d x %d",W_CheckNameForNumPwad((UINT16)w,texstart+j),patchlump->width, patchlump->height); texture = textures[i] = Z_Calloc(sizeof(texture_t) + sizeof(texpatch_t), PU_STATIC, NULL); // Set texture properties. M_Memcpy(texture->name, W_CheckNameForNumPwad(wadnum, lumpnum), sizeof(texture->name)); #ifndef NO_PNG_LUMPS if (Picture_IsLumpPNG((UINT8 *)patchlump, lumplength)) { INT16 width, height; Picture_PNGDimensions((UINT8 *)patchlump, &width, &height, lumplength); texture->width = width; texture->height = height; } else #endif { texture->width = SHORT(patchlump->width); texture->height = SHORT(patchlump->height); } texture->type = TEXTURETYPE_SINGLEPATCH; texture->patchcount = 1; texture->holes = false; texture->flip = 0; // Allocate information for the texture's patches. patch = &texture->patches[0]; patch->originx = patch->originy = 0; patch->wad = (UINT16)w; patch->lump = texstart + j; patch->flip = 0; Z_Unlock(patchlump); texturewidth[i] = texture->width; textureheight[i] = texture->height << FRACBITS; i++; } } return i; } // // R_LoadTextures // Initializes the texture list with the textures from the world map. // void R_LoadTextures(void) { INT32 i, w; UINT16 j; UINT16 texstart, texend, texturesLumpPos; // Free previous memory before numtextures change. if (numtextures) { for (i = 0; i < numtextures; i++) { Z_Free(textures[i]); Z_Free(texturecache[i]); } Z_Free(texturetranslation); Z_Free(textures); } // Load patches and textures. // Get the number of textures to check. // NOTE: Make SURE the system does not process // the markers. // This system will allocate memory for all duplicate/patched textures even if it never uses them, // but the alternative is to spend a ton of time checking and re-checking all previous entries just to skip any potentially patched textures. for (w = 0, numtextures = 0; w < numwadfiles; w++) { #ifdef WALLFLATS // Count flats if (wadfiles[w]->type == RET_PK3) { texstart = W_CheckNumForFolderStartPK3("flats/", (UINT16)w, 0); texend = W_CheckNumForFolderEndPK3("flats/", (UINT16)w, texstart); } else { texstart = W_CheckNumForMarkerStartPwad("F_START", (UINT16)w, 0); texend = W_CheckNumForNamePwad("F_END", (UINT16)w, texstart); } if (!( texstart == INT16_MAX || texend == INT16_MAX )) { // PK3s have subfolders, so we can't just make a simple sum if (wadfiles[w]->type == RET_PK3) { for (j = texstart; j < texend; j++) { if (!W_IsLumpFolder((UINT16)w, j)) // Check if lump is a folder; if not, then count it numtextures++; } } else // Add all the textures between F_START and F_END { numtextures += (UINT32)(texend - texstart); } } #endif/*WALLFLATS*/ // Count the textures from TEXTURES lumps texturesLumpPos = W_CheckNumForNamePwad("TEXTURES", (UINT16)w, 0); while (texturesLumpPos != INT16_MAX) { numtextures += R_CountTexturesInTEXTURESLump((UINT16)w, (UINT16)texturesLumpPos); texturesLumpPos = W_CheckNumForNamePwad("TEXTURES", (UINT16)w, texturesLumpPos + 1); } // Count single-patch textures if (wadfiles[w]->type == RET_PK3) { texstart = W_CheckNumForFolderStartPK3("textures/", (UINT16)w, 0); texend = W_CheckNumForFolderEndPK3("textures/", (UINT16)w, texstart); } else { texstart = W_CheckNumForMarkerStartPwad(TX_START, (UINT16)w, 0); texend = W_CheckNumForNamePwad(TX_END, (UINT16)w, 0); } if (texstart == INT16_MAX || texend == INT16_MAX) continue; // PK3s have subfolders, so we can't just make a simple sum if (wadfiles[w]->type == RET_PK3) { for (j = texstart; j < texend; j++) { if (!W_IsLumpFolder((UINT16)w, j)) // Check if lump is a folder; if not, then count it numtextures++; } } else // Add all the textures between TX_START and TX_END { numtextures += (UINT32)(texend - texstart); } } // If no textures found by this point, bomb out if (!numtextures) I_Error("No textures detected in any WADs!\n"); // Allocate memory and initialize to 0 for all the textures we are initialising. // There are actually 5 buffers allocated in one for convenience. textures = Z_Calloc((numtextures * sizeof(void *)) * 5, PU_STATIC, NULL); // Allocate texture column offset table. texturecolumnofs = (void *)((UINT8 *)textures + (numtextures * sizeof(void *))); // Allocate texture referencing cache. texturecache = (void *)((UINT8 *)textures + ((numtextures * sizeof(void *)) * 2)); // Allocate texture width table. texturewidth = (void *)((UINT8 *)textures + ((numtextures * sizeof(void *)) * 3)); // Allocate texture height table. textureheight = (void *)((UINT8 *)textures + ((numtextures * sizeof(void *)) * 4)); // Create translation table for global animation. texturetranslation = Z_Malloc((numtextures + 1) * sizeof(*texturetranslation), PU_STATIC, NULL); for (i = 0; i < numtextures; i++) texturetranslation[i] = i; for (i = 0, w = 0; w < numwadfiles; w++) { #ifdef WALLFLATS i = Rloadflats(i, w); #endif i = Rloadtextures(i, w); } #ifdef HWRENDER if (rendermode == render_opengl) HWR_LoadTextures(numtextures); #endif } static texpatch_t *R_ParsePatch(boolean actuallyLoadPatch) { char *texturesToken; size_t texturesTokenLength; char *endPos; char *patchName = NULL; INT16 patchXPos; INT16 patchYPos; UINT8 flip = 0; UINT8 alpha = 255; enum patchalphastyle style = AST_COPY; texpatch_t *resultPatch = NULL; lumpnum_t patchLumpNum; // Patch identifier texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch name should be"); } texturesTokenLength = strlen(texturesToken); if (texturesTokenLength>8) { I_Error("Error parsing TEXTURES lump: Patch name \"%s\" exceeds 8 characters",texturesToken); } else { if (patchName != NULL) { Z_Free(patchName); } patchName = (char *)Z_Malloc((texturesTokenLength+1)*sizeof(char),PU_STATIC,NULL); M_Memcpy(patchName,texturesToken,texturesTokenLength*sizeof(char)); patchName[texturesTokenLength] = '\0'; } // Comma 1 Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where comma after \"%s\"'s patch name should be",patchName); } if (strcmp(texturesToken,",")!=0) { I_Error("Error parsing TEXTURES lump: Expected \",\" after %s's patch name, got \"%s\"",patchName,texturesToken); } // XPos Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch \"%s\"'s x coordinate should be",patchName); } endPos = NULL; #ifndef AVOID_ERRNO errno = 0; #endif patchXPos = strtol(texturesToken,&endPos,10); (void)patchXPos; //unused for now if (endPos == texturesToken // Empty string || *endPos != '\0' // Not end of string #ifndef AVOID_ERRNO || errno == ERANGE // Number out-of-range #endif ) { I_Error("Error parsing TEXTURES lump: Expected an integer for patch \"%s\"'s x coordinate, got \"%s\"",patchName,texturesToken); } // Comma 2 Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where comma after patch \"%s\"'s x coordinate should be",patchName); } if (strcmp(texturesToken,",")!=0) { I_Error("Error parsing TEXTURES lump: Expected \",\" after patch \"%s\"'s x coordinate, got \"%s\"",patchName,texturesToken); } // YPos Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch \"%s\"'s y coordinate should be",patchName); } endPos = NULL; #ifndef AVOID_ERRNO errno = 0; #endif patchYPos = strtol(texturesToken,&endPos,10); (void)patchYPos; //unused for now if (endPos == texturesToken // Empty string || *endPos != '\0' // Not end of string #ifndef AVOID_ERRNO || errno == ERANGE // Number out-of-range #endif ) { I_Error("Error parsing TEXTURES lump: Expected an integer for patch \"%s\"'s y coordinate, got \"%s\"",patchName,texturesToken); } Z_Free(texturesToken); // Patch parameters block (OPTIONAL) // added by Monster Iestyn (22/10/16) // Left Curly Brace texturesToken = M_GetToken(NULL); if (texturesToken == NULL) ; // move on and ignore, R_ParseTextures will deal with this else { if (strcmp(texturesToken,"{")==0) { Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch \"%s\"'s parameters should be",patchName); } while (strcmp(texturesToken,"}")!=0) { if (stricmp(texturesToken, "ALPHA")==0) { Z_Free(texturesToken); texturesToken = M_GetToken(NULL); alpha = 255*strtof(texturesToken, NULL); } else if (stricmp(texturesToken, "STYLE")==0) { Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (stricmp(texturesToken, "TRANSLUCENT")==0) style = AST_TRANSLUCENT; else if (stricmp(texturesToken, "ADD")==0) style = AST_ADD; else if (stricmp(texturesToken, "SUBTRACT")==0) style = AST_SUBTRACT; else if (stricmp(texturesToken, "REVERSESUBTRACT")==0) style = AST_REVERSESUBTRACT; else if (stricmp(texturesToken, "MODULATE")==0) style = AST_MODULATE; } else if (stricmp(texturesToken, "FLIPX")==0) flip |= 1; else if (stricmp(texturesToken, "FLIPY")==0) flip |= 2; Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch \"%s\"'s parameters or right curly brace should be",patchName); } } } else { // this is not what we wanted... // undo last read so R_ParseTextures can re-get the token for its own purposes M_UnGetToken(); } Z_Free(texturesToken); } if (actuallyLoadPatch == true) { // Check lump exists patchLumpNum = W_GetNumForName(patchName); // If so, allocate memory for texpatch_t and fill 'er up resultPatch = (texpatch_t *)Z_Malloc(sizeof(texpatch_t),PU_STATIC,NULL); resultPatch->originx = patchXPos; resultPatch->originy = patchYPos; resultPatch->lump = patchLumpNum & 65535; resultPatch->wad = patchLumpNum>>16; resultPatch->flip = flip; resultPatch->alpha = alpha; resultPatch->style = style; // Clean up a little after ourselves Z_Free(patchName); // Then return it return resultPatch; } else { Z_Free(patchName); return NULL; } } static texture_t *R_ParseTexture(boolean actuallyLoadTexture) { char *texturesToken; size_t texturesTokenLength; char *endPos; INT32 newTextureWidth; INT32 newTextureHeight; texture_t *resultTexture = NULL; texpatch_t *newPatch; char newTextureName[9]; // no longer dynamically allocated // Texture name texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where texture name should be"); } texturesTokenLength = strlen(texturesToken); if (texturesTokenLength>8) { I_Error("Error parsing TEXTURES lump: Texture name \"%s\" exceeds 8 characters",texturesToken); } else { memset(&newTextureName, 0, 9); M_Memcpy(newTextureName, texturesToken, texturesTokenLength); // ^^ we've confirmed that the token is <= 8 characters so it will never overflow a 9 byte char buffer strupr(newTextureName); // Just do this now so we don't have to worry about it } Z_Free(texturesToken); // Comma 1 texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where comma after texture \"%s\"'s name should be",newTextureName); } else if (strcmp(texturesToken,",")!=0) { I_Error("Error parsing TEXTURES lump: Expected \",\" after texture \"%s\"'s name, got \"%s\"",newTextureName,texturesToken); } Z_Free(texturesToken); // Width texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where texture \"%s\"'s width should be",newTextureName); } endPos = NULL; #ifndef AVOID_ERRNO errno = 0; #endif newTextureWidth = strtol(texturesToken,&endPos,10); if (endPos == texturesToken // Empty string || *endPos != '\0' // Not end of string #ifndef AVOID_ERRNO || errno == ERANGE // Number out-of-range #endif || newTextureWidth < 0) // Number is not positive { I_Error("Error parsing TEXTURES lump: Expected a positive integer for texture \"%s\"'s width, got \"%s\"",newTextureName,texturesToken); } Z_Free(texturesToken); // Comma 2 texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where comma after texture \"%s\"'s width should be",newTextureName); } if (strcmp(texturesToken,",")!=0) { I_Error("Error parsing TEXTURES lump: Expected \",\" after texture \"%s\"'s width, got \"%s\"",newTextureName,texturesToken); } Z_Free(texturesToken); // Height texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where texture \"%s\"'s height should be",newTextureName); } endPos = NULL; #ifndef AVOID_ERRNO errno = 0; #endif newTextureHeight = strtol(texturesToken,&endPos,10); if (endPos == texturesToken // Empty string || *endPos != '\0' // Not end of string #ifndef AVOID_ERRNO || errno == ERANGE // Number out-of-range #endif || newTextureHeight < 0) // Number is not positive { I_Error("Error parsing TEXTURES lump: Expected a positive integer for texture \"%s\"'s height, got \"%s\"",newTextureName,texturesToken); } Z_Free(texturesToken); // Left Curly Brace texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where open curly brace for texture \"%s\" should be",newTextureName); } if (strcmp(texturesToken,"{")==0) { if (actuallyLoadTexture) { // Allocate memory for a zero-patch texture. Obviously, we'll be adding patches momentarily. resultTexture = (texture_t *)Z_Calloc(sizeof(texture_t),PU_STATIC,NULL); M_Memcpy(resultTexture->name, newTextureName, 8); resultTexture->width = newTextureWidth; resultTexture->height = newTextureHeight; resultTexture->type = TEXTURETYPE_COMPOSITE; } Z_Free(texturesToken); texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch definition for texture \"%s\" should be",newTextureName); } while (strcmp(texturesToken,"}")!=0) { if (stricmp(texturesToken, "PATCH")==0) { Z_Free(texturesToken); if (resultTexture) { // Get that new patch newPatch = R_ParsePatch(true); // Make room for the new patch resultTexture = Z_Realloc(resultTexture, sizeof(texture_t) + (resultTexture->patchcount+1)*sizeof(texpatch_t), PU_STATIC, NULL); // Populate the uninitialized values in the new patch entry of our array M_Memcpy(&resultTexture->patches[resultTexture->patchcount], newPatch, sizeof(texpatch_t)); // Account for the new number of patches in the texture resultTexture->patchcount++; // Then free up the memory assigned to R_ParsePatch, as it's unneeded now Z_Free(newPatch); } else { R_ParsePatch(false); } } else { I_Error("Error parsing TEXTURES lump: Expected \"PATCH\" in texture \"%s\", got \"%s\"",newTextureName,texturesToken); } texturesToken = M_GetToken(NULL); if (texturesToken == NULL) { I_Error("Error parsing TEXTURES lump: Unexpected end of file where patch declaration or right curly brace for texture \"%s\" should be",newTextureName); } } if (resultTexture && resultTexture->patchcount == 0) { I_Error("Error parsing TEXTURES lump: Texture \"%s\" must have at least one patch",newTextureName); } } else { I_Error("Error parsing TEXTURES lump: Expected \"{\" for texture \"%s\", got \"%s\"",newTextureName,texturesToken); } Z_Free(texturesToken); if (actuallyLoadTexture) return resultTexture; else return NULL; } // Parses the TEXTURES lump... but just to count the number of textures. int R_CountTexturesInTEXTURESLump(UINT16 wadNum, UINT16 lumpNum) { char *texturesLump; size_t texturesLumpLength; char *texturesText; UINT32 numTexturesInLump = 0; char *texturesToken; // Since lumps AREN'T \0-terminated like I'd assumed they should be, I'll // need to make a space of memory where I can ensure that it will terminate // correctly. Start by loading the relevant data from the WAD. texturesLump = (char *)W_CacheLumpNumPwad(wadNum, lumpNum, PU_STATIC); // If that didn't exist, we have nothing to do here. if (texturesLump == NULL) return 0; // If we're still here, then it DOES exist; figure out how long it is, and allot memory accordingly. texturesLumpLength = W_LumpLengthPwad(wadNum, lumpNum); texturesText = (char *)Z_Malloc((texturesLumpLength+1)*sizeof(char),PU_STATIC,NULL); // Now move the contents of the lump into this new location. memmove(texturesText,texturesLump,texturesLumpLength); // Make damn well sure the last character in our new memory location is \0. texturesText[texturesLumpLength] = '\0'; // Finally, free up the memory from the first data load, because we really // don't need it. Z_Free(texturesLump); texturesToken = M_GetToken(texturesText); while (texturesToken != NULL) { if (stricmp(texturesToken, "WALLTEXTURE") == 0 || stricmp(texturesToken, "TEXTURE") == 0) { numTexturesInLump++; Z_Free(texturesToken); R_ParseTexture(false); } else { I_Error("Error parsing TEXTURES lump: Expected \"WALLTEXTURE\" or \"TEXTURE\", got \"%s\"",texturesToken); } texturesToken = M_GetToken(NULL); } Z_Free(texturesToken); Z_Free((void *)texturesText); return numTexturesInLump; } // Parses the TEXTURES lump... for real, this time. void R_ParseTEXTURESLump(UINT16 wadNum, UINT16 lumpNum, INT32 *texindex) { char *texturesLump; size_t texturesLumpLength; char *texturesText; char *texturesToken; texture_t *newTexture; I_Assert(texindex != NULL); // Since lumps AREN'T \0-terminated like I'd assumed they should be, I'll // need to make a space of memory where I can ensure that it will terminate // correctly. Start by loading the relevant data from the WAD. texturesLump = (char *)W_CacheLumpNumPwad(wadNum, lumpNum, PU_STATIC); // If that didn't exist, we have nothing to do here. if (texturesLump == NULL) return; // If we're still here, then it DOES exist; figure out how long it is, and allot memory accordingly. texturesLumpLength = W_LumpLengthPwad(wadNum, lumpNum); texturesText = (char *)Z_Malloc((texturesLumpLength+1)*sizeof(char),PU_STATIC,NULL); // Now move the contents of the lump into this new location. memmove(texturesText,texturesLump,texturesLumpLength); // Make damn well sure the last character in our new memory location is \0. texturesText[texturesLumpLength] = '\0'; // Finally, free up the memory from the first data load, because we really // don't need it. Z_Free(texturesLump); texturesToken = M_GetToken(texturesText); while (texturesToken != NULL) { if (stricmp(texturesToken, "WALLTEXTURE") == 0 || stricmp(texturesToken, "TEXTURE") == 0) { Z_Free(texturesToken); // Get the new texture newTexture = R_ParseTexture(true); // Store the new texture textures[*texindex] = newTexture; texturewidth[*texindex] = newTexture->width; textureheight[*texindex] = newTexture->height << FRACBITS; // Increment i back in R_LoadTextures() (*texindex)++; } else { I_Error("Error parsing TEXTURES lump: Expected \"WALLTEXTURE\" or \"TEXTURE\", got \"%s\"",texturesToken); } texturesToken = M_GetToken(NULL); } Z_Free(texturesToken); Z_Free((void *)texturesText); } // Search for flat name. lumpnum_t R_GetFlatNumForName(const char *name) { INT32 i; lumpnum_t lump; lumpnum_t start; lumpnum_t end; // Scan wad files backwards so patched flats take preference. for (i = numwadfiles - 1; i >= 0; i--) { switch (wadfiles[i]->type) { case RET_WAD: if ((start = W_CheckNumForMarkerStartPwad("F_START", (UINT16)i, 0)) == INT16_MAX) { if ((start = W_CheckNumForMarkerStartPwad("FF_START", (UINT16)i, 0)) == INT16_MAX) continue; else if ((end = W_CheckNumForNamePwad("FF_END", (UINT16)i, start)) == INT16_MAX) continue; } else if ((end = W_CheckNumForNamePwad("F_END", (UINT16)i, start)) == INT16_MAX) continue; break; case RET_PK3: if ((start = W_CheckNumForFolderStartPK3("Flats/", i, 0)) == INT16_MAX) continue; if ((end = W_CheckNumForFolderEndPK3("Flats/", i, start)) == INT16_MAX) continue; break; default: continue; } // Now find lump with specified name in that range. lump = W_CheckNumForNamePwad(name, (UINT16)i, start); if (lump < end) { lump += (i<<16); // found it, in our constraints break; } lump = LUMPERROR; } return lump; } void R_ClearTextureNumCache(boolean btell) { if (tidcache) Z_Free(tidcache); tidcache = NULL; if (btell) CONS_Debug(DBG_SETUP, "Fun Fact: There are %d textures used in this map.\n", tidcachelen); tidcachelen = 0; } // // R_CheckTextureNumForName // // Check whether texture is available. Filter out NoTexture indicator. // INT32 R_CheckTextureNumForName(const char *name) { INT32 i; // "NoTexture" marker. if (name[0] == '-') return 0; for (i = 0; i < tidcachelen; i++) if (!strncasecmp(tidcache[i].name, name, 8)) return tidcache[i].id; // Need to parse the list backwards, so textures loaded more recently are used in lieu of ones loaded earlier //for (i = 0; i < numtextures; i++) <- old for (i = (numtextures - 1); i >= 0; i--) // <- new if (!strncasecmp(textures[i]->name, name, 8)) { tidcachelen++; Z_Realloc(tidcache, tidcachelen * sizeof(*tidcache), PU_STATIC, &tidcache); strncpy(tidcache[tidcachelen-1].name, name, 8); tidcache[tidcachelen-1].name[8] = '\0'; #ifndef ZDEBUG CONS_Debug(DBG_SETUP, "texture #%s: %s\n", sizeu1(tidcachelen), tidcache[tidcachelen-1].name); #endif tidcache[tidcachelen-1].id = i; return i; } return -1; } // // R_TextureNumForName // // Calls R_CheckTextureNumForName, aborts with error message. // INT32 R_TextureNumForName(const char *name) { const INT32 i = R_CheckTextureNumForName(name); if (i == -1) { static INT32 redwall = -2; CONS_Debug(DBG_SETUP, "WARNING: R_TextureNumForName: %.8s not found\n", name); if (redwall == -2) redwall = R_CheckTextureNumForName("REDWALL"); if (redwall != -1) return redwall; return 1; } return i; }