mirror of
https://github.com/scp-fs2open/fs2open.github.com.git
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taylor
ed0631ce6b
git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@3263 387891d4-d844-0410-90c0-e4c51a9137d3
212 lines
8.9 KiB
C
212 lines
8.9 KiB
C
/*
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* Copyright (C) Volition, Inc. 1999. All rights reserved.
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*
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* All source code herein is the property of Volition, Inc. You may not sell
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* or otherwise commercially exploit the source or things you created based on the
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* source.
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*
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*/
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/*
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* $Logfile: /Freespace2/code/Graphics/GrOpenGLTexture.h $
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* $Revision: 1.20 $
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* $Date: 2006-06-27 05:03:42 $
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* $Author: taylor $
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*
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* This file contains function and structure definitions
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* that are needed for managing texture mapping
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*
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* $Log: not supported by cvs2svn $
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* Revision 1.19 2006/05/13 07:29:52 taylor
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* OpenGL envmap support
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* newer OpenGL extension support
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* add GL_ARB_texture_rectangle support for non-power-of-2 textures as interface graphics
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* add cubemap reading and writing support to DDS loader
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* fix bug in DDS loader that made compressed images with mipmaps use more memory than they really required
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* add support for a default envmap named "cubemap.dds"
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* new mission flag "$Environment Map:" to use a pre-existing envmap
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* minor cleanup of compiler warning messages
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* get rid of wasteful math from gr_set_proj_matrix()
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* remove extra gr_set_*_matrix() calls from starfield.cpp as there was no longer a reason for them to be there
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* clean up bmpman flags in reguards to cubemaps and render targets
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* disable D3D envmap code until it can be upgraded to current level of code
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* remove bumpmap code from OpenGL stuff (sorry but it was getting in the way, if it was more than copy-paste it would be worth keeping)
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* replace gluPerspective() call with glFrustum() call, it's a lot less math this way and saves the extra function call
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*
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* Revision 1.18 2006/01/30 06:52:15 taylor
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* better lighting for OpenGL
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* remove some extra stuff that was from sectional bitmaps since we don't need it anymore
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*
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* Revision 1.17 2006/01/03 02:59:14 taylor
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* fix a couple of minor mipmap problems
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* add resizing with mipmaps rather than a physical change in memory when detail levels dictate scaling (maybe this won't blow up)
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*
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* Revision 1.16 2005/12/28 22:28:44 taylor
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* add support for glCompressedTexSubImage2D(), we don't use it yet but there is nothing wrong with adding it already
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* better support for mipmaps and mipmap filtering
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* add reg option "TextureFilter" to set bilinear or trilinear filter
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* clean up bitmap_id/bitmap_handle/texture_handle madness that made things difficult to understand
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* small fix for using 24-bit images on 16-bit bpp visual (untested)
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*
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* Revision 1.15 2005/12/16 06:48:28 taylor
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* "House Keeping!!"
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* - minor cleanup of things that have bothered me at one time or another
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* - slight speedup from state switching
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* - slightly better specmap handling, fixes a couple of (not frequent) strange and sorta random issues
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* - make sure to only disable HTL arb stuff when in HTL mode
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* - handle any extra lighting pass before spec pass so the light can be applied properly
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*
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* Revision 1.14 2005/12/06 02:50:41 taylor
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* clean up some init stuff and fix a minor SDL annoyance
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* make debug messages a bit more readable
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* clean up the debug console commands for minimize and anisotropic filter setting
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* make anisotropic filter actually work correctly and have it settable with a reg option
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* give opengl_set_arb() the ability to disable all features on all arbs at once so I don't have to everywhere
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*
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* Revision 1.13 2005/11/13 06:44:18 taylor
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* small bit of EFF cleanup
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* add -img2dds support
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* cleanup some D3D stuff (missing a lot since the old code is so unstable I couldn't get it working like I wanted)
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* some minor OGL cleanup and small performance changes
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* converge the various pcx_read_bitmap* functions into one
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* cleanup/rename/remove some cmdline options
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*
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* Revision 1.12 2005/09/20 02:46:53 taylor
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* slight speedup for font rendering
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* fix a couple of things that Valgrind complained about
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*
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* Revision 1.11 2005/09/05 09:36:41 taylor
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* merge of OSX tree
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* fix OGL fullscreen switch for SDL since the old way only worked under Linux and not OSX or Windows
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* fix OGL version check, it would allow a required major version to be higher if the required minor version was lower than current
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*
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* Revision 1.10 2005/07/13 03:15:51 Goober5000
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* remove PreProcDefine #includes in FS2
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* --Goober5000
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*
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* Revision 1.9 2005/04/24 12:56:43 taylor
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* really are too many changes here:
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* - remove all bitmap section support and fix problems with previous attempt
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* ( code/bmpman/bmpman.cpp, code/bmpman/bmpman.h, code/globalincs/pstypes.h,
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* code/graphics/2d.cpp, code/graphics/2d.h code/graphics/grd3dbmpman.cpp,
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* code/graphics/grd3dinternal.h, code/graphics/grd3drender.cpp, code/graphics/grd3dtexture.cpp,
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* code/graphics/grinternal.h, code/graphics/gropengl.cpp, code/graphics/gropengl.h,
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* code/graphics/gropengllight.cpp, code/graphics/gropengltexture.cpp, code/graphics/gropengltexture.h,
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* code/graphics/tmapper.h, code/network/multi_pinfo.cpp, code/radar/radarorb.cpp
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* code/render/3ddraw.cpp )
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* - use CLAMP() define in gropengl.h for gropengllight instead of single clamp() function
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* - remove some old/outdated code from gropengl.cpp and gropengltexture.cpp
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*
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* Revision 1.8 2005/04/23 01:17:09 wmcoolmon
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* Removed GL_SECTIONS
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*
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* Revision 1.7 2005/01/21 08:54:53 taylor
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* slightly better memory management
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*
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* Revision 1.6 2005/01/21 08:25:15 taylor
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* fill in gr_opengl_set_texture_addressing()
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* add support for non-power-of-two textures for cards that have it
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* temporary crash fix from multiple mipmap levels in uncompressed formats
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*
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* Revision 1.5 2005/01/01 11:24:23 taylor
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* good OpenGL spec mapping
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* fix VBO crash with multitexture using same uv coord data
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* little speedup of opengl_tcache_frame()
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* error message to make sure hardware supports the minimum texture size
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* move OpenGL version check out of the extention printout code
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* disable 2d_poof with OpenGL
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*
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* Revision 1.4 2004/08/11 05:06:24 Kazan
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* added preprocdefines.h to prevent what happened with fred -- make sure to make all fred2 headers include this file as the _first_ include -- i have already modified fs2 files to do this
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*
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* Revision 1.3 2004/07/17 18:43:46 taylor
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* don't use bitmap sections by default, openil_close()
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*
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* Revision 1.2 2004/07/01 01:12:31 bobboau
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* implemented index buffered background bitmaps,
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* OGL people you realy should get this implemented
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*
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* Revision 1.1 2004/05/24 07:25:32 taylor
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* filename case change
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*
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* Revision 2.4 2004/04/26 12:43:58 taylor
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* minor fixes, HTL lines, 32-bit texture support
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*
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* Revision 2.3 2004/04/13 01:55:41 phreak
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* put in the correct fields for the CVS comments to register
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* fixed a glowmap problem that occured when rendering glowmapped and non-glowmapped ships
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*
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*
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* $NoKeywords: $
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*/
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#ifndef _GROPENGLTEXTURE_H
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#define _GROPENGLTEXTURE_H
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#include "globalincs/pstypes.h"
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#include "graphics/gropengl.h"
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//turns on/off GL_TEXTUREx_ARB
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void opengl_switch_arb(int unit, int state);
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typedef struct tcache_slot_opengl {
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GLuint texture_id;
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GLenum texture_target;
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float u_scale, v_scale;
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int bitmap_handle;
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int size;
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int time_created;
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ushort w,h;
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ubyte bpp;
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ubyte mipmap_levels;
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} tcache_slot_opengl;
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extern int GL_texture_sections;
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extern int GL_texture_ram;
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extern int GL_frame_count;
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extern int GL_min_texture_width;
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extern GLint GL_max_texture_width;
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extern int GL_min_texture_height;
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extern GLint GL_max_texture_height;
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extern int GL_square_textures;
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extern int GL_textures_in;
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extern int GL_textures_in_frame;
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extern int GL_last_bitmap_id;
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extern int GL_last_detail;
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extern int GL_last_bitmap_type;
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extern int GL_last_section_x;
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extern int GL_last_section_y;
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extern GLint GL_supported_texture_units;
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extern int GL_should_preload;
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extern ubyte GL_xlat[256];
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extern int GL_mipmap_filter;
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extern GLenum GL_texture_target;
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extern GLenum GL_texture_face;
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void opengl_tcache_init();
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void opengl_free_texture_slot(int n);
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void opengl_tcache_flush();
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void opengl_tcache_cleanup();
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void opengl_tcache_frame();
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int gr_opengl_tcache_set(int bitmap_handle, int bitmap_type, float *u_scale, float *v_scale, int fail_on_full = 0, int force = 0, int stage = 0);
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void opengl_set_additive_tex_env();
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void opengl_set_modulate_tex_env();
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void gr_opengl_set_tex_env_scale(float scale);
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int gr_opengl_preload(int bitmap_num, int is_aabitmap);
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void gr_opengl_preload_init();
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GLfloat opengl_get_max_anisotropy();
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void opengl_set_anisotropy(GLfloat aniso_value = 0.0f);
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void gr_opengl_set_texture_panning(float u, float v, bool enable);
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void gr_opengl_set_texture_addressing(int mode);
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void opengl_kill_render_target(int slot);
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int opengl_make_render_target(int handle, int slot, int *w, int *h, ubyte *bpp, int *mm_lvl, int flags);
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int opengl_set_render_target(int slot, int face = -1, int is_static = 0);
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int opengl_export_image(int slot, int width, int height, int alpha, int num_mipmaps, ubyte *image_data = NULL);
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void opengl_set_texture_target(GLenum target = GL_TEXTURE_2D);
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void opengl_set_texture_face(GLenum face = GL_TEXTURE_2D);
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#endif //_GROPENGLTEXTURE_H
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