mirror of
https://github.com/id-Software/DOOM-3-BFG.git
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163 lines
No EOL
4.5 KiB
C++
163 lines
No EOL
4.5 KiB
C++
/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition Source Code 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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Doom 3 BFG Edition Source Code 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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You should have received a copy of the GNU General Public License
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along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#ifndef __IMAGEOPTS_H__
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#define __IMAGEOPTS_H__
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enum textureType_t
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{
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TT_DISABLED,
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TT_2D,
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TT_CUBIC
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};
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/*
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================================================
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The internal *Texture Format Types*, ::textureFormat_t, are:
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================================================
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*/
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enum textureFormat_t
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{
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FMT_NONE,
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//------------------------
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// Standard color image formats
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//------------------------
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FMT_RGBA8, // 32 bpp
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FMT_XRGB8, // 32 bpp
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//------------------------
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// Alpha channel only
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//------------------------
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// Alpha ends up being the same as L8A8 in our current implementation, because straight
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// alpha gives 0 for color, but we want 1.
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FMT_ALPHA,
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//------------------------
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// Luminance replicates the value across RGB with a constant A of 255
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// Intensity replicates the value across RGBA
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//------------------------
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FMT_L8A8, // 16 bpp
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FMT_LUM8, // 8 bpp
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FMT_INT8, // 8 bpp
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//------------------------
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// Compressed texture formats
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//------------------------
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FMT_DXT1, // 4 bpp
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FMT_DXT5, // 8 bpp
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//------------------------
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// Depth buffer formats
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//------------------------
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FMT_DEPTH, // 24 bpp
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//------------------------
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//
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//------------------------
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FMT_X16, // 16 bpp
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FMT_Y16_X16, // 32 bpp
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FMT_RGB565, // 16 bpp
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};
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int BitsForFormat( textureFormat_t format );
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/*
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================================================
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DXT5 color formats
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================================================
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*/
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enum textureColor_t
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{
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CFM_DEFAULT, // RGBA
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CFM_NORMAL_DXT5, // XY format and use the fast DXT5 compressor
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CFM_YCOCG_DXT5, // convert RGBA to CoCg_Y format
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CFM_GREEN_ALPHA // Copy the alpha channel to green
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};
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/*
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================================================
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idImageOpts hold parameters for texture operations.
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================================================
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*/
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class idImageOpts
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{
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public:
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idImageOpts();
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bool operator==( const idImageOpts& opts );
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//---------------------------------------------------
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// these determine the physical memory size and layout
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//---------------------------------------------------
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textureType_t textureType;
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textureFormat_t format;
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textureColor_t colorFormat;
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int width;
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int height; // not needed for cube maps
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int numLevels; // if 0, will be 1 for NEAREST / LINEAR filters, otherwise based on size
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bool gammaMips; // if true, mips will be generated with gamma correction
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bool readback; // 360 specific - cpu reads back from this texture, so allocate with cached memory
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};
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/*
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========================
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idImageOpts::idImageOpts
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========================
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*/
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ID_INLINE idImageOpts::idImageOpts()
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{
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format = FMT_NONE;
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colorFormat = CFM_DEFAULT;
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width = 0;
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height = 0;
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numLevels = 0;
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textureType = TT_2D;
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gammaMips = false;
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readback = false;
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};
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/*
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========================
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idImageOpts::operator==
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========================
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*/
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ID_INLINE bool idImageOpts::operator==( const idImageOpts& opts )
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{
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return ( memcmp( this, &opts, sizeof( *this ) ) == 0 );
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}
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#endif |