521 lines
12 KiB
521 lines
12 KiB
/* |
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img_mip.c - hl1 and q1 image mips |
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Copyright (C) 2007 Uncle Mike |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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#include "imagelib.h" |
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#include "mathlib.h" |
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#include "wadfile.h" |
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#include "studio.h" |
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#include "sprite.h" |
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#include "qfont.h" |
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/* |
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============ |
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Image_LoadPAL |
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============ |
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*/ |
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qboolean Image_LoadPAL( const char *name, const byte *buffer, size_t filesize ) |
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{ |
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int rendermode = LUMP_NORMAL; |
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if( filesize != 768 ) |
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{ |
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Con_DPrintf( S_ERROR "Image_LoadPAL: (%s) have invalid size (%d should be %d)\n", name, filesize, 768 ); |
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return false; |
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} |
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if( name[0] == '#' ) |
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{ |
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// using palette name as rendermode |
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if( Q_stristr( name, "normal" )) |
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rendermode = LUMP_NORMAL; |
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else if( Q_stristr( name, "masked" )) |
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rendermode = LUMP_MASKED; |
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else if( Q_stristr( name, "gradient" )) |
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rendermode = LUMP_GRADIENT; |
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else if( Q_stristr( name, "valve" )) |
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{ |
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rendermode = LUMP_HALFLIFE; |
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buffer = NULL; // force to get HL palette |
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} |
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else if( Q_stristr( name, "id" )) |
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{ |
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rendermode = LUMP_QUAKE1; |
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buffer = NULL; // force to get Q1 palette |
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} |
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} |
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// NOTE: image.d_currentpal not cleared with Image_Reset() |
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// and stay valid any time before new call of Image_SetPalette |
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Image_GetPaletteLMP( buffer, rendermode ); |
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Image_CopyPalette32bit(); |
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image.rgba = NULL; // only palette, not real image |
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image.size = 1024; // expanded palette |
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image.width = image.height = 0; |
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image.depth = 1; |
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return true; |
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} |
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/* |
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============ |
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Image_LoadFNT |
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============ |
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*/ |
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qboolean Image_LoadFNT( const char *name, const byte *buffer, size_t filesize ) |
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{ |
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qfont_t font; |
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const byte *pal, *fin; |
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size_t size; |
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int numcolors; |
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if( image.hint == IL_HINT_Q1 ) |
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return false; // Quake1 doesn't have qfonts |
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if( filesize < sizeof( font )) |
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return false; |
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memcpy( &font, buffer, sizeof( font )); |
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// last sixty four bytes - what the hell ???? |
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size = sizeof( qfont_t ) - 4 + ( font.height * font.width * QCHAR_WIDTH ) + sizeof( short ) + 768 + 64; |
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if( size != filesize ) |
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{ |
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// oldstyle font: "conchars" or "creditsfont" |
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image.width = 256; // hardcoded |
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image.height = font.height; |
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} |
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else |
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{ |
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// Half-Life 1.1.0.0 font style (qfont_t) |
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image.width = font.width * QCHAR_WIDTH; |
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image.height = font.height; |
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} |
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if( !Image_LumpValidSize( name )) |
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return false; |
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fin = buffer + sizeof( font ) - 4; |
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pal = fin + (image.width * image.height); |
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numcolors = *(short *)pal, pal += sizeof( short ); |
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if( numcolors == 768 || numcolors == 256 ) |
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{ |
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// g-cont. make sure that is didn't hit anything |
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Image_GetPaletteLMP( pal, LUMP_MASKED ); |
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image.flags |= IMAGE_HAS_ALPHA; // fonts always have transparency |
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} |
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else |
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{ |
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return false; |
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} |
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image.type = PF_INDEXED_32; // 32-bit palette |
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image.depth = 1; |
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return Image_AddIndexedImageToPack( fin, image.width, image.height ); |
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} |
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/* |
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====================== |
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Image_SetMDLPointer |
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Transfer buffer pointer before Image_LoadMDL |
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====================== |
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*/ |
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static void *g_mdltexdata; |
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void Image_SetMDLPointer(byte *p) |
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{ |
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g_mdltexdata = p; |
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} |
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/* |
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============ |
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Image_LoadMDL |
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============ |
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*/ |
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qboolean Image_LoadMDL( const char *name, const byte *buffer, size_t filesize ) |
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{ |
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byte *fin; |
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size_t pixels; |
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mstudiotexture_t *pin; |
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int flags; |
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pin = (mstudiotexture_t *)buffer; |
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flags = pin->flags; |
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image.width = pin->width; |
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image.height = pin->height; |
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pixels = image.width * image.height; |
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fin = (byte *)g_mdltexdata; |
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ASSERT(fin); |
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g_mdltexdata = NULL; |
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if( !Image_ValidSize( name )) |
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return false; |
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if( image.hint == IL_HINT_HL ) |
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{ |
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if( filesize < ( sizeof( *pin ) + pixels + 768 )) |
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return false; |
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if( FBitSet( flags, STUDIO_NF_MASKED )) |
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{ |
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byte *pal = fin + pixels; |
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Image_GetPaletteLMP( pal, LUMP_MASKED ); |
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image.flags |= IMAGE_HAS_ALPHA|IMAGE_ONEBIT_ALPHA; |
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} |
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else Image_GetPaletteLMP( fin + pixels, LUMP_NORMAL ); |
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} |
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else |
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{ |
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return false; // unknown or unsupported mode rejected |
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} |
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image.type = PF_INDEXED_32; // 32-bit palete |
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image.depth = 1; |
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return Image_AddIndexedImageToPack( fin, image.width, image.height ); |
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} |
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/* |
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============ |
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Image_LoadSPR |
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============ |
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*/ |
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qboolean Image_LoadSPR( const char *name, const byte *buffer, size_t filesize ) |
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{ |
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dspriteframe_t *pin; // identical for q1\hl sprites |
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qboolean truecolor = false; |
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if( image.hint == IL_HINT_HL ) |
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{ |
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if( !image.d_currentpal ) |
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return false; |
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} |
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else if( image.hint == IL_HINT_Q1 ) |
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{ |
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Image_GetPaletteQ1(); |
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} |
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else |
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{ |
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// unknown mode rejected |
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return false; |
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} |
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pin = (dspriteframe_t *)buffer; |
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image.width = pin->width; |
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image.height = pin->height; |
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if( filesize < image.width * image.height ) |
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return false; |
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if( filesize == ( image.width * image.height * 4 )) |
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truecolor = true; |
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// sorry, can't validate palette rendermode |
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if( !Image_LumpValidSize( name )) return false; |
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image.type = (truecolor) ? PF_RGBA_32 : PF_INDEXED_32; // 32-bit palete |
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image.depth = 1; |
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// detect alpha-channel by palette type |
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switch( image.d_rendermode ) |
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{ |
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case LUMP_MASKED: |
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SetBits( image.flags, IMAGE_ONEBIT_ALPHA ); |
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case LUMP_GRADIENT: |
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case LUMP_QUAKE1: |
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SetBits( image.flags, IMAGE_HAS_ALPHA ); |
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break; |
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} |
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if( truecolor ) |
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{ |
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// spr32 support |
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image.size = image.width * image.height * 4; |
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image.rgba = Mem_Malloc( host.imagepool, image.size ); |
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memcpy( image.rgba, (byte *)(pin + 1), image.size ); |
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SetBits( image.flags, IMAGE_HAS_COLOR ); // Color. True Color! |
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return true; |
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} |
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return Image_AddIndexedImageToPack( (byte *)(pin + 1), image.width, image.height ); |
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} |
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/* |
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============ |
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Image_LoadLMP |
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============ |
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*/ |
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qboolean Image_LoadLMP( const char *name, const byte *buffer, size_t filesize ) |
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{ |
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lmp_t lmp; |
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byte *fin, *pal; |
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int rendermode; |
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int i, pixels; |
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if( filesize < sizeof( lmp )) |
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return false; |
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// valve software trick (particle palette) |
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if( Q_stristr( name, "palette.lmp" )) |
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return Image_LoadPAL( name, buffer, filesize ); |
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// id software trick (image without header) |
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if( Q_stristr( name, "conchars" ) && filesize == 16384 ) |
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{ |
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image.width = image.height = 128; |
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rendermode = LUMP_QUAKE1; |
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filesize += sizeof( lmp ); |
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fin = (byte *)buffer; |
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// need to remap transparent color from first to last entry |
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for( i = 0; i < 16384; i++ ) if( !fin[i] ) fin[i] = 0xFF; |
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} |
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else |
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{ |
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fin = (byte *)buffer; |
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memcpy( &lmp, fin, sizeof( lmp )); |
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image.width = lmp.width; |
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image.height = lmp.height; |
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rendermode = LUMP_NORMAL; |
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fin += sizeof( lmp ); |
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} |
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pixels = image.width * image.height; |
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if( filesize < sizeof( lmp ) + pixels ) |
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return false; |
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if( !Image_ValidSize( name )) |
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return false; |
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if( image.hint != IL_HINT_Q1 && filesize > (int)sizeof(lmp) + pixels ) |
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{ |
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int numcolors; |
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for( i = 0; i < pixels; i++ ) |
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{ |
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if( fin[i] == 255 ) |
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{ |
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image.flags |= IMAGE_HAS_ALPHA; |
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rendermode = LUMP_MASKED; |
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break; |
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} |
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} |
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pal = fin + pixels; |
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numcolors = *(short *)pal; |
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if( numcolors != 256 ) pal = NULL; // corrupted lump ? |
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else pal += sizeof( short ); |
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} |
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else if( image.hint != IL_HINT_HL ) |
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{ |
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image.flags |= IMAGE_HAS_ALPHA; |
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rendermode = LUMP_QUAKE1; |
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pal = NULL; |
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} |
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else |
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{ |
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// unknown mode rejected |
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return false; |
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} |
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Image_GetPaletteLMP( pal, rendermode ); |
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image.type = PF_INDEXED_32; // 32-bit palete |
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image.depth = 1; |
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return Image_AddIndexedImageToPack( fin, image.width, image.height ); |
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} |
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/* |
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============= |
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Image_LoadMIP |
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============= |
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*/ |
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qboolean Image_LoadMIP( const char *name, const byte *buffer, size_t filesize ) |
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{ |
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mip_t mip; |
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qboolean hl_texture; |
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byte *fin, *pal; |
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int ofs[4], rendermode; |
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int i, pixels, numcolors; |
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int reflectivity[3] = { 0, 0, 0 }; |
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if( filesize < sizeof( mip )) |
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return false; |
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memcpy( &mip, buffer, sizeof( mip )); |
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image.width = mip.width; |
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image.height = mip.height; |
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if( !Image_ValidSize( name )) |
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return false; |
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memcpy( ofs, mip.offsets, sizeof( ofs )); |
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pixels = image.width * image.height; |
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if( image.hint != IL_HINT_Q1 && filesize >= (int)sizeof(mip) + ((pixels * 85)>>6) + sizeof(short) + 768) |
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{ |
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// half-life 1.0.0.1 mip version with palette |
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fin = (byte *)buffer + mip.offsets[0]; |
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pal = (byte *)buffer + mip.offsets[0] + (((image.width * image.height) * 85)>>6); |
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numcolors = *(short *)pal; |
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if( numcolors != 256 ) pal = NULL; // corrupted mip ? |
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else pal += sizeof( short ); // skip colorsize |
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hl_texture = true; |
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// setup rendermode |
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if( Q_strrchr( name, '{' )) |
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{ |
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// NOTE: decals with 'blue base' can be interpret as colored decals |
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if( !Image_CheckFlag( IL_LOAD_DECAL ) || ( pal[765] == 0 && pal[766] == 0 && pal[767] == 255 )) |
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{ |
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SetBits( image.flags, IMAGE_ONEBIT_ALPHA ); |
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rendermode = LUMP_MASKED; |
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} |
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else |
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{ |
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// classic gradient decals |
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SetBits( image.flags, IMAGE_COLORINDEX ); |
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rendermode = LUMP_GRADIENT; |
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} |
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SetBits( image.flags, IMAGE_HAS_ALPHA ); |
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} |
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else |
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{ |
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int pal_type; |
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// NOTE: we can have luma-pixels if quake1 texture |
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// converted into the hl texture but palette leave unchanged |
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// this is a good reason for using fullbright pixels |
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pal_type = Image_ComparePalette( pal ); |
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// check for luma pixels (but ignore liquid textures because they have no lightmap) |
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if( mip.name[0] != '*' && mip.name[0] != '!' && pal_type == PAL_QUAKE1 ) |
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{ |
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for( i = 0; i < image.width * image.height; i++ ) |
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{ |
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if( fin[i] > 224 ) |
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{ |
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image.flags |= IMAGE_HAS_LUMA; |
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break; |
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} |
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} |
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} |
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if( pal_type == PAL_QUAKE1 ) |
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SetBits( image.flags, IMAGE_QUAKEPAL ); |
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rendermode = LUMP_NORMAL; |
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} |
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Image_GetPaletteLMP( pal, rendermode ); |
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image.d_currentpal[255] &= 0xFFFFFF; |
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} |
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else if( image.hint != IL_HINT_HL && filesize >= (int)sizeof(mip) + ((pixels * 85)>>6)) |
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{ |
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// quake1 1.01 mip version without palette |
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fin = (byte *)buffer + mip.offsets[0]; |
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pal = NULL; // clear palette |
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rendermode = LUMP_NORMAL; |
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hl_texture = false; |
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// check for luma and alpha pixels |
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if( !image.custom_palette ) |
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{ |
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for( i = 0; i < image.width * image.height; i++ ) |
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{ |
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if( fin[i] > 224 && fin[i] != 255 ) |
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{ |
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// don't apply luma to water surfaces because they have no lightmap |
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if( mip.name[0] != '*' && mip.name[0] != '!' ) |
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image.flags |= IMAGE_HAS_LUMA; |
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break; |
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} |
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} |
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} |
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// Arcane Dimensions has the transparent textures |
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if( Q_strrchr( name, '{' )) |
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{ |
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for( i = 0; i < image.width * image.height; i++ ) |
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{ |
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if( fin[i] == 255 ) |
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{ |
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// don't set ONEBIT_ALPHA flag for some reasons |
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image.flags |= IMAGE_HAS_ALPHA; |
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break; |
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} |
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} |
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} |
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SetBits( image.flags, IMAGE_QUAKEPAL ); |
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Image_GetPaletteQ1(); |
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} |
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else |
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{ |
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return false; // unknown or unsupported mode rejected |
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} |
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// check for quake-sky texture |
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if( !Q_strncmp( mip.name, "sky", 3 ) && image.width == ( image.height * 2 )) |
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{ |
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// g-cont: we need to run additional checks for palette type and colors ? |
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image.flags |= IMAGE_QUAKESKY; |
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} |
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// check for half-life water texture |
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if( hl_texture && ( mip.name[0] == '!' || !Q_strnicmp( mip.name, "water", 5 ))) |
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{ |
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// grab the fog color |
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image.fogParams[0] = pal[3*3+0]; |
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image.fogParams[1] = pal[3*3+1]; |
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image.fogParams[2] = pal[3*3+2]; |
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// grab the fog density |
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image.fogParams[3] = pal[4*3+0]; |
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} |
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else if( hl_texture && ( rendermode == LUMP_GRADIENT )) |
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{ |
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// grab the decal color |
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image.fogParams[0] = pal[255*3+0]; |
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image.fogParams[1] = pal[255*3+1]; |
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image.fogParams[2] = pal[255*3+2]; |
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// calc the decal reflectivity |
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image.fogParams[3] = VectorAvg( image.fogParams ); |
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} |
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else if( pal != NULL ) |
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{ |
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// calc texture reflectivity |
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for( i = 0; i < 256; i++ ) |
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{ |
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reflectivity[0] += pal[i*3+0]; |
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reflectivity[1] += pal[i*3+1]; |
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reflectivity[2] += pal[i*3+2]; |
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} |
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VectorDivide( reflectivity, 256, image.fogParams ); |
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} |
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image.type = PF_INDEXED_32; // 32-bit palete |
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image.depth = 1; |
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return Image_AddIndexedImageToPack( fin, image.width, image.height ); |
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}
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