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116 lines
4 KiB
C
116 lines
4 KiB
C
// SONIC ROBO BLAST 2
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//-----------------------------------------------------------------------------
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// Copyright (C) 1993-1996 by id Software, Inc.
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// Copyright (C) 1998-2000 by DooM Legacy Team.
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// Copyright (C) 1999-2019 by Sonic Team Junior.
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//
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// This program is free software distributed under the
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// terms of the GNU General Public License, version 2.
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// See the 'LICENSE' file for more details.
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//-----------------------------------------------------------------------------
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/// \file
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/// \brief defines structures and exports for the standard GPU driver
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#ifndef _HWR_DATA_
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#define _HWR_DATA_
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#include "../doomdef.h"
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#include "../screen.h"
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// ==========================================================================
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// TEXTURE INFO
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// ==========================================================================
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//
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// hw_glide.h
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//
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typedef long GLAspectRatio_t;
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#define GR_ASPECT_LOG2_8x1 3 /* 8W x 1H */
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#define GR_ASPECT_LOG2_4x1 2 /* 4W x 1H */
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#define GR_ASPECT_LOG2_2x1 1 /* 2W x 1H */
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#define GR_ASPECT_LOG2_1x1 0 /* 1W x 1H */
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#define GR_ASPECT_LOG2_1x2 -1 /* 1W x 2H */
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#define GR_ASPECT_LOG2_1x4 -2 /* 1W x 4H */
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#define GR_ASPECT_LOG2_1x8 -3 /* 1W x 8H */
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typedef long GLlod_t;
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#define GR_LOD_LOG2_256 0x8
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#define GR_LOD_LOG2_128 0x7
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#define GR_LOD_LOG2_64 0x6
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#define GR_LOD_LOG2_32 0x5
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#define GR_LOD_LOG2_16 0x4
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#define GR_LOD_LOG2_8 0x3
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#define GR_LOD_LOG2_4 0x2
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#define GR_LOD_LOG2_2 0x1
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#define GR_LOD_LOG2_1 0x0
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typedef long GLTextureFormat_t;
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#define GR_TEXFMT_ALPHA_8 0x2 /* (0..0xFF) alpha */
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#define GR_TEXFMT_INTENSITY_8 0x3 /* (0..0xFF) intensity */
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#define GR_TEXFMT_ALPHA_INTENSITY_44 0x4
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#define GR_TEXFMT_P_8 0x5 /* 8-bit palette */
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#define GR_TEXFMT_RGB_565 0xa
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#define GR_TEXFMT_ARGB_1555 0xb
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#define GR_TEXFMT_ARGB_4444 0xc
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#define GR_TEXFMT_ALPHA_INTENSITY_88 0xd
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#define GR_TEXFMT_AP_88 0xe /* 8-bit alpha 8-bit palette */
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#define GR_RGBA 0x6 // 32 bit RGBA !
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typedef struct
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{
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GLlod_t smallLodLog2;
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GLlod_t largeLodLog2;
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GLAspectRatio_t aspectRatioLog2;
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GLTextureFormat_t format;
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void *data;
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} GLTexInfo;
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// grInfo.data holds the address of the graphics data cached in heap memory
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// NULL if the texture is not in Doom heap cache.
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struct GLMipmap_s
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{
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GLTexInfo grInfo;
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unsigned long flags;
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UINT16 width, height;
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UINT32 downloaded; // tex_downloaded
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struct GLMipmap_s *nextmipmap;
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struct GLMipmap_s *nextcolormap;
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const UINT8 *colormap;
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};
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typedef struct GLMipmap_s GLMipmap_t;
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//
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// Doom texture info, as cached for hardware rendering
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//
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struct GLTexture_s
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{
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GLMipmap_t mipmap;
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float scaleX; //used for scaling textures on walls
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float scaleY;
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};
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typedef struct GLTexture_s GLTexture_t;
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// a cached patch as converted to hardware format, holding the original patch_t
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// header so that the existing code can retrieve ->width, ->height as usual
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// This is returned by W_CachePatchNum()/W_CachePatchName(), when rendermode
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// is 'render_opengl'. Else it returns the normal patch_t data.
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struct GLPatch_s
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{
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// the 4 first fields come right away from the original patch_t
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INT16 width;
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INT16 height;
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INT16 leftoffset; // pixels to the left of origin
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INT16 topoffset; // pixels below the origin
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//
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float max_s,max_t;
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UINT16 wadnum; // the software patch lump num for when the hardware patch
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UINT16 lumpnum; // was flushed, and we need to re-create it
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GLMipmap_t *mipmap;
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boolean notfound; // if the texture file was not found, mark it here (used in model texture loading)
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} ATTRPACK;
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typedef struct GLPatch_s GLPatch_t;
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#endif //_HWR_DATA_
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