mirror of
https://github.com/scp-fs2open/fs2open.github.com.git
synced 2026-11-11 04:31:35 -10:00
3626 lines
89 KiB
C++
3626 lines
89 KiB
C++
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/*
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* $Logfile: /Freespace2/code/Graphics/GrOpenGL.cpp $
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* $Revision: 2.17 $
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* $Date: 2003-03-18 10:07:02 $
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* $Author: unknownplayer $
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*
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* Code that uses the OpenGL graphics library
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*
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* $Log: not supported by cvs2svn $
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* Revision 2.16 2003/03/07 00:15:45 phreak
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* added some hacks that shutdown and restore opengl because of cutscenes
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*
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* Revision 2.15 2003/02/16 18:43:13 phreak
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* tweaked some more stuff
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*
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* Revision 2.14 2003/02/01 02:57:42 phreak
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* started to finalize before 3.50 release.
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* added support for GL_EXT_texture_filter_ansiotropic
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*
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* Revision 2.13 2003/01/26 23:30:53 DTP
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* temporary fix, added some // so that we can do debug builds. i expect Goober5000 will fix it soon.
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*
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* Revision 2.12 2003/01/19 22:45:34 Goober5000
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* cleaned up build output a bit
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* --Goober5000
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*
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* Revision 2.11 2003/01/19 01:07:41 bobboau
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* redid the way glowmaps are handeled, you now must set the global int GLOWMAP (no longer an array) before you render a poly that uses a glow map then set GLOWMAP to -1 when you're done with, fixed a few other misc bugs it
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*
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* Revision 2.10 2003/01/18 19:49:45 phreak
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* texture mapper now supports DXTC compressed textures
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*
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* Revision 2.9 2003/01/09 21:19:54 phreak
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* glowmaps in OpenGL, yay!
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*
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* Revision 2.8 2002/12/23 19:25:39 phreak
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* dumb typo
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*
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* Revision 2.7 2002/12/23 17:52:51 phreak
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* added code that displays an error if user's OGL version is less than 1.2
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*
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* Revision 2.6 2002/12/16 23:28:52 phreak
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* optimized fullscreen/minimized functions.. alot faster
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*
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* Revision 2.5 2002/12/15 18:59:57 DTP
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* fixed a minor glitch, replaced <> with ", so that it takes project glXXX.h, and not compilers glXXX.h
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*
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* Revision 2.4 2002/12/14 16:14:52 phreak
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* copied from grgpenglw32x.cpp.
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*
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* Revision 1.7 2002/12/05 00:49:25 phreak
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* extension framework implemented(no extensions work YET) -phreak
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*
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* Revision 1.6 2002/11/22 20:54:16 phreak
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* finished off all remaining problems with 32 bit mode, fullscreen mode
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* and colors. Still needs some tweaking, but works near perfect
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*
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* Revision 1.5 2002/11/18 21:31:36 phreak
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* complete overhaul, works in 16 bit mode -phreak
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*
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* Revision 1.4 2002/10/14 19:49:08 phreak
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* screenshots, yay!
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*
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* Revision 1.3 2002/10/13 21:43:24 phreak
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* further optimizations
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*
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* Revision 1.2 2002/10/12 17:48:11 phreak
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* fixed text
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*
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* Revision 1.1 2002/10/11 21:31:17 phreak
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* first run at opengl for w32, only useful in main hall, barracks and campaign room
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*
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* Revision 1.1.1.1 2002/06/06 06:25:26 drevil
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* initial import of June 6th, 2002 sources
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*
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* Revision 1.46 2002/06/05 04:03:32 relnev
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* finished cfilesystem.
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*
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* removed some old code.
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*
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* fixed mouse save off-by-one.
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*
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* sound cleanups.
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*
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* Revision 1.45 2002/06/03 09:25:37 relnev
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* implement mouse cursor and screen save/restore
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*
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* Revision 1.44 2002/06/02 18:46:59 relnev
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* updated
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*
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* Revision 1.43 2002/06/02 11:34:00 relnev
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* adjust z coords
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*
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* Revision 1.42 2002/06/02 10:28:17 relnev
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* fix texture handle leak
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* Revision 2.3.2.2 2002/11/04 16:04:21 randomtiger
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*
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* Tided up some bumpman stuff and added a few function points to gr_screen. - RT
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*
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* Revision 2.3.2.1 2002/11/04 03:02:29 randomtiger
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*
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* I have made some fairly drastic changes to the bumpman system. Now functionality can be engine dependant.
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* This is so D3D8 can call its own loading code that will allow good efficient loading and use of textures that it desparately needs without
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* turning bumpman.cpp into a total hook infested nightmare. Note the new bumpman code is still relying on a few of the of the old functions and all of the old bumpman arrays.
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*
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* I have done this by adding to the gr_screen list of function pointers that are set up by the engines init functions.
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* I have named the define calls the same name as the original 'bm_' functions so that I havent had to change names all through the code.
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*
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* Rolled back to an old version of bumpman and made a few changes.
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* Added new files: grd3dbumpman.cpp and .h
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* Moved the bitmap init function to after the 3D engine is initialised
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* Added includes where needed
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* Disabled (for now) the D3D8 TGA loading - RT
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*
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* Revision 2.3 2002/08/01 01:41:05 penguin
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* The big include file move
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*
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* Revision 1.41 2002/06/01 09:00:34 relnev
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* silly debug memmanager
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*
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* Revision 1.40 2002/06/01 07:12:33 relnev
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* a few NDEBUG updates.
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*
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* removed a few warnings.
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*
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* Revision 1.39 2002/06/01 05:33:15 relnev
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* copied more code over.
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*
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* added scissor clipping.
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*
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* Revision 1.38 2002/06/01 03:35:27 relnev
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* fix typo
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*
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* Revision 1.37 2002/06/01 03:32:00 relnev
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* fix texture loading mistake.
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*
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* enable some d3d stuff for opengl also
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*
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* Revision 1.36 2002/05/31 23:25:03 relnev
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* line fixes
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*
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* Revision 1.34 2002/05/31 22:15:22 relnev
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* BGRA
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*
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* Revision 1.33 2002/05/31 22:04:55 relnev
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* use d3d rect_internal
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*
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* Revision 1.32 2002/05/31 06:28:23 relnev
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* more stuff
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*
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* Revision 1.31 2002/05/31 06:04:39 relnev
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* fog
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*
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* Revision 1.30 2002/05/31 03:56:11 theoddone33
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* Change tmapper polygon winding and enable culling
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*
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* Revision 1.29 2002/05/31 03:34:02 theoddone33
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* Fix Keyboard
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* Add titlebar
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*
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* Revision 1.28 2002/05/31 00:06:59 relnev
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* minor change
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*
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* Revision 1.27 2002/05/30 23:46:29 theoddone33
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* some minor key changes (not necessarily fixes)
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*
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* Revision 1.26 2002/05/30 23:33:12 relnev
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* implemented a few more functions.
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*
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* Revision 1.25 2002/05/30 23:01:16 relnev
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* implement gr_opengl_set_state.
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*
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* Revision 1.24 2002/05/30 22:12:57 relnev
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* finish default texture case
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*
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* Revision 1.23 2002/05/30 22:02:30 theoddone33
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* More gl changes
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*
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* Revision 1.22 2002/05/30 21:44:48 relnev
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* implemented some missing texture stuff.
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*
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* enable bitmap polys for opengl.
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*
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* work around greenness in bitmaps.
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*
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* Revision 1.21 2002/05/30 17:29:30 theoddone33
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* Fix some more stubs, change at least one polygon winding since culling is now
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* enabled.
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*
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* Revision 1.20 2002/05/30 16:50:24 theoddone33
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* Keyboard partially fixed
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*
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* Revision 1.19 2002/05/30 08:13:14 relnev
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* fonts are fixed
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*
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* Revision 1.18 2002/05/29 23:37:36 relnev
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* fix bitmap bug
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*
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* Revision 1.17 2002/05/29 23:17:49 theoddone33
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* Non working text code and fixed keys
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*
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* Revision 1.16 2002/05/29 19:45:13 theoddone33
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* More changes on texture loading
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*
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* Revision 1.15 2002/05/29 19:06:48 theoddone33
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* Enable string printing. Enable texture mapping
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*
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* Revision 1.14 2002/05/29 08:54:40 relnev
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* "fixed" bitmap drawing.
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*
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* copied more d3d code over.
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*
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* Revision 1.13 2002/05/29 06:25:13 theoddone33
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* Keyboard input, mouse tracking now work
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*
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* Revision 1.12 2002/05/29 04:52:45 relnev
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* bitmap
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*
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* Revision 1.11 2002/05/29 04:29:56 relnev
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* removed some unncessary stubbing, implemented opengl rect
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*
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* Revision 1.10 2002/05/29 04:13:27 theoddone33
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* enable opengl_line
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*
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* Revision 1.9 2002/05/29 03:35:51 relnev
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* added rest of init
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*
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* Revision 1.8 2002/05/29 03:30:05 relnev
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* update opengl stubs
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*
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* Revision 1.7 2002/05/29 02:52:32 theoddone33
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* Enable OpenGL renderer
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*
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* Revision 1.6 2002/05/28 04:56:51 theoddone33
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* runs a little bit now
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*
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* Revision 1.5 2002/05/28 04:07:28 theoddone33
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* New graphics stubbing arrangement
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*
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* Revision 1.4 2002/05/27 23:39:34 relnev
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* 0
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*
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* Revision 1.3 2002/05/27 22:35:01 theoddone33
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* more symbols
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*
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* Revision 1.2 2002/05/27 22:32:02 theoddone33
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* throw all d3d stuff at opengl
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*
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* Revision 1.1.1.1 2002/05/03 03:28:09 root
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* Initial import.
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*
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*
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* 10 7/14/99 9:42a Dave
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* Put in clear_color debug function. Put in base for 3dnow stuff / P3
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* stuff
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*
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* 9 7/09/99 9:51a Dave
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* Added thick polyline code.
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*
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* 8 6/29/99 10:35a Dave
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* Interface polygon bitmaps! Whee!
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*
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* 7 2/03/99 11:44a Dave
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* Fixed d3d transparent textures.
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*
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* 6 1/24/99 11:37p Dave
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* First full rev of beam weapons. Very customizable. Removed some bogus
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* Int3()'s in low level net code.
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*
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* 5 12/18/98 1:13a Dave
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* Rough 1024x768 support for Direct3D. Proper detection and usage through
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* the launcher.
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*
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* 4 12/06/98 2:36p Dave
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* Drastically improved nebula fogging.
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*
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* 3 11/11/98 5:37p Dave
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* Checkin for multiplayer testing.
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*
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* 2 10/07/98 10:53a Dave
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* Initial checkin.
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*
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* 1 10/07/98 10:49a Dave
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*
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* 14 5/20/98 9:46p John
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* added code so the places in code that change half the palette don't
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* have to clear the screen.
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*
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* 13 5/06/98 5:30p John
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* Removed unused cfilearchiver. Removed/replaced some unused/little used
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* graphics functions, namely gradient_h and _v and pixel_sp. Put in new
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* DirectX header files and libs that fixed the Direct3D alpha blending
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* problems.
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*
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* 12 4/14/98 12:15p John
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* Made 16-bpp movies work.
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*
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* 11 3/12/98 5:36p John
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* Took out any unused shaders. Made shader code take rgbc instead of
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* matrix and vector since noone used it like a matrix and it would have
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* been impossible to do in hardware. Made Glide implement a basic
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* shader for online help.
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*
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* 10 3/10/98 4:18p John
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* Cleaned up graphics lib. Took out most unused gr functions. Made D3D
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* & Glide have popups and print screen. Took out all >8bpp software
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* support. Made Fred zbuffer. Made zbuffer allocate dynamically to
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* support Fred. Made zbuffering key off of functions rather than one
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* global variable.
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*
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* 9 12/02/97 4:00p John
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* Added first rev of thruster glow, along with variable levels of
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* translucency, which retquired some restructing of palman.
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*
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* 8 10/03/97 9:10a John
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* added better antialiased line drawer
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*
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* 7 9/23/97 10:45a John
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* made so you can tell bitblt code to rle a bitmap by passing flag to
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* gr_set_bitmap
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*
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* 6 9/09/97 11:01a Sandeep
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* fixed warning level 4 bugs
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*
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* 5 7/10/97 2:06p John
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* added code to specify alphablending type for bitmaps.
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*
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* 4 6/17/97 7:04p John
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* added d3d support for gradients.
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* fixed some color bugs by adding screen signatures instead of watching
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* flags and palette changes.
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*
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* 3 6/12/97 2:50a Lawrance
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* bm_unlock() now passed bitmap number, not pointer
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*
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* 2 6/11/97 1:12p John
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* Started fixing all the text colors in the game.
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*
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* 1 5/12/97 12:14p John
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*
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* $NoKeywords: $
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*/
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/*
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This file combines penguin's, phreak's and the Icculus OpenGL code
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--STUFF WE STILL NEED TO DO--
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-----------------------------
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1. Switch to true 3d graphics (not ortho)
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2. Start extenstion implentation (last)
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*/
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#ifdef WIN32
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#define STUB_FUNCTION 0
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#include <windows.h>
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#include <windowsx.h>
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#include "gl/gl.h"
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#include "gl/glu.h"
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#include "gl/glext.h"
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#include "globalincs/pstypes.h"
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#include "osapi/osapi.h"
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#include "graphics/2d.h"
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#include "render/3d.h"
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#include "bmpman/bmpman.h"
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#include "math/floating.h"
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#include "palman/palman.h"
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#include "globalincs/systemvars.h"
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#include "graphics/grinternal.h"
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#include "graphics/gropengl.h"
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#include "graphics/line.h"
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#include "nebula/neb.h"
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#include "io/mouse.h"
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#include "osapi/osregistry.h"
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#include "cfile/cfile.h"
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#include "io/timer.h"
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#include "ddsutils/ddsutils.h"
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#pragma comment (lib, "opengl32")
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#pragma comment (lib, "glu32")
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#define REQUIRED_GL_VERSION 1.2f
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extern int OGL_inited;
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int vram_full = 0; // UnknownPlayer
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//0==no fog
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//1==linear
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//2==fog coord EXT
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//3==secondary color EXT
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static int OGL_fogmode=0;
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static HDC dev_context = NULL;
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static HGLRC rend_context = NULL;
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static PIXELFORMATDESCRIPTOR pfd;
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//EXTENSIONS!!!!
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//be sure to check for this at startup and handle not finding it gracefully
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//to add extensions:
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//define an index after the last one
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//increment GL_NUM_EXTENSIONS
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//add function macro
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//add function info to GL_Extensions struct
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//I included three as examples
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typedef struct ogl_extension
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{
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int enabled; //is this extension enabled
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uint func_pointer; //address of function
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const char* function_name; //name passed to wglGetProcAddress()
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const char* extension_name; //name found in extension string
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int required_to_run; //is this extension required for use
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} ogl_extension;
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#define GL_FOG_COORDF 0 // coordinate fog system
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#define GL_FOG_COORD_POINTER 1 // used with vertex arrays
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#define GL_MULTITEXTURE_COORD2F 2 // multitex coordinated
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#define GL_ACTIVE_TEX 3 // currenly active multitexture
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#define GL_SECONDARY_COLOR3F 4 // secondary color (3 floats)
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#define GL_SECONDARY_COLOR3UB 5 // secondary color (3 unsinged bytes)
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#define GL_SECONDARY_COLOR_POINTER 6 // secondary color array
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#define GL_TEXTURE_ENV_ADD 7 // additive texture environment
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#define GL_COMP_TEX 8 // texture compression
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#define GL_TEX_COMP_S3TC 9 // S3TC/DXTC compression format
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#define GL_TEX_FILTER_ANSIO 10 // ansiotrophic filtering
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#define GL_NUM_EXTENSIONS 11
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static ogl_extension GL_Extensions[GL_NUM_EXTENSIONS]=
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{
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{0, NULL, "glFogCoordfEXT", "GL_EXT_fog_coord",0},
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{0, NULL, "glFogCoordPointerEXT", "GL_EXT_fog_coord",0},
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{0, NULL, "glMultiTexCoord2fARB", "GL_ARB_multitexture",1}, //required for glow maps
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{0, NULL, "glActiveTextureARB", "GL_ARB_multitexture",1}, //required for glow maps
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{0, NULL, "glSecondaryColor3fEXT", "GL_EXT_secondary_color",0},
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{0, NULL, "glSecondaryColor3ubEXT", "GL_EXT_secondary_color",0},
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{0, NULL, "glSecondaryColorPointerEXT", "GL_EXT_secondary_color",0},
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{0, NULL, NULL, "GL_ARB_texture_env_add", 1}, //required for glow maps
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{0, NULL, "glCompressedTexImage2D", "GL_ARB_texture_compression",0},
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{0, NULL, NULL, "GL_EXT_texture_compression_s3tc",0},
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{0, NULL, NULL, "GL_EXT_texture_filter_anisotropic", 0}
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};
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#define GLEXT_CALL(x,i) if (GL_Extensions[i].enabled)\
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((x)GL_Extensions[i].func_pointer)
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#define glFogCoordfEXT GLEXT_CALL(PFNGLFOGCOORDFEXTPROC, GL_FOG_COORDF)
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#define glFogCoordPointerEXT GLEXT_CALL(PFNGLFOGCOORDPOINTEREXTPROC, GL_FOG_COORD_POINTER);
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#define glMultiTexCoord2fARB GLEXT_CALL(PFNGLMULTITEXCOORD2FARBPROC, GL_MULTITEXTURE_COORD2F)
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#define glActiveTextureARB GLEXT_CALL(PFNGLACTIVETEXTUREARBPROC, GL_ACTIVE_TEX)
|
|
|
|
#define glSecondaryColor3fEXT GLEXT_CALL(PFNGLSECONDARYCOLOR3FEXTPROC, GL_SECONDARY_COLOR3F)
|
|
|
|
#define glSecondaryColor3ubEXT GLEXT_CALL(PFNGLSECONDARYCOLOR3UBEXTPROC, GL_SECONDARY_COLOR3UB)
|
|
|
|
#define glSecondaryColorPointerEXT GLEXT_CALL(PFNGLSECONDARYCOLORPOINTEREXTPROC, GL_SECONDARY_COLOR_POINTER)
|
|
|
|
#define glCompressedTexImage2D GLEXT_CALL(PFNGLCOMPRESSEDTEXIMAGE2DPROC, GL_COMP_TEX)
|
|
|
|
extern int Texture_compression_enabled;
|
|
|
|
typedef enum gr_texture_source {
|
|
TEXTURE_SOURCE_NONE,
|
|
TEXTURE_SOURCE_DECAL,
|
|
TEXTURE_SOURCE_NO_FILTERING,
|
|
TEXTURE_SOURCE_ADD
|
|
} gr_texture_source;
|
|
|
|
typedef enum gr_alpha_blend {
|
|
ALPHA_BLEND_NONE, // 1*SrcPixel + 0*DestPixel
|
|
ALPHA_BLEND_ALPHA_ADDITIVE, // Alpha*SrcPixel + 1*DestPixel
|
|
ALPHA_BLEND_ALPHA_BLEND_ALPHA, // Alpha*SrcPixel + (1-Alpha)*DestPixel
|
|
ALPHA_BLEND_ALPHA_BLEND_SRC_COLOR, // Alpha*SrcPixel + (1-SrcPixel)*DestPixel
|
|
} gr_alpha_blend;
|
|
|
|
typedef enum gr_zbuffer_type {
|
|
ZBUFFER_TYPE_NONE,
|
|
ZBUFFER_TYPE_READ,
|
|
ZBUFFER_TYPE_WRITE,
|
|
ZBUFFER_TYPE_FULL,
|
|
} gr_zbuffer_type;
|
|
|
|
#define NEBULA_COLORS 20
|
|
|
|
volatile int GL_activate = 0;
|
|
volatile int GL_deactivate = 0;
|
|
|
|
static char *Gr_saved_screen = NULL;
|
|
static int Gr_saved_screen_bitmap;
|
|
|
|
|
|
static int Gr_opengl_mouse_saved = 0;
|
|
static int Gr_opengl_mouse_saved_x1 = 0;
|
|
static int Gr_opengl_mouse_saved_y1 = 0;
|
|
static int Gr_opengl_mouse_saved_x2 = 0;
|
|
static int Gr_opengl_mouse_saved_y2 = 0;
|
|
static int Gr_opengl_mouse_saved_w = 0;
|
|
static int Gr_opengl_mouse_saved_h = 0;
|
|
|
|
extern int Cmdline_window;
|
|
|
|
static const char* OGL_extensions;
|
|
|
|
//tries to find a certain extension
|
|
int opengl_find_extension(const char* ext_to_find)
|
|
{
|
|
|
|
return (strstr(OGL_extensions,ext_to_find)!=NULL);
|
|
}
|
|
|
|
//finds OGL extension functions
|
|
//returns number found
|
|
|
|
int opengl_get_extensions()
|
|
{
|
|
int num_found=0;
|
|
ogl_extension *cur=NULL;
|
|
|
|
for (int i=0; i < GL_NUM_EXTENSIONS; i++)
|
|
{
|
|
cur=&GL_Extensions[i];
|
|
if (opengl_find_extension(cur->extension_name))
|
|
{
|
|
//some extensions do not have functions
|
|
if (cur->function_name==NULL)
|
|
{
|
|
mprintf(("found extension %s\n", cur->extension_name));
|
|
cur->enabled=1;
|
|
num_found++;
|
|
continue;
|
|
}
|
|
|
|
cur->func_pointer=(uint)wglGetProcAddress(cur->function_name);
|
|
if (cur->func_pointer)
|
|
{
|
|
cur->enabled=1;
|
|
mprintf(("found extension function: %s -- extension: %s\n", cur->function_name, cur->extension_name));
|
|
num_found++;
|
|
}
|
|
else
|
|
{
|
|
mprintf(("found extension, but not function: %s -- extension:%s\n", cur->function_name, cur->extension_name));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mprintf(("did not find extension: %s\n", cur->extension_name));
|
|
if (cur->required_to_run)
|
|
{
|
|
Error(__FILE__,__LINE__,"The required OpenGL extension %s is not supported by your graphics card, please use the Glide or Direct3D rendering engines.\n\n",cur->extension_name);
|
|
}
|
|
}
|
|
}
|
|
return num_found;
|
|
}
|
|
|
|
void opengl_go_fullscreen(HWND wnd)
|
|
{
|
|
DEVMODE dm;
|
|
|
|
if (Cmdline_window)
|
|
return;
|
|
|
|
mprintf(("opengl_go_fullscreen\n"));
|
|
|
|
os_suspend();
|
|
SetWindowLong( wnd, GWL_EXSTYLE, 0 );
|
|
SetWindowLong( wnd, GWL_STYLE, WS_POPUP );
|
|
ShowWindow(wnd, SW_SHOWNORMAL );
|
|
SetWindowPos( wnd, HWND_TOPMOST, 0, 0, gr_screen.max_w, gr_screen.max_h, 0 );
|
|
SetActiveWindow(wnd);
|
|
SetForegroundWindow(wnd);
|
|
|
|
memset((void*)&dm,0,sizeof(DEVMODE));
|
|
dm.dmSize=sizeof(DEVMODE);
|
|
dm.dmPelsHeight=gr_screen.max_h;
|
|
dm.dmPelsWidth=gr_screen.max_w;
|
|
dm.dmBitsPerPel=gr_screen.bits_per_pixel;
|
|
dm.dmFields=DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
|
|
ChangeDisplaySettings(&dm,CDS_FULLSCREEN);
|
|
os_resume();
|
|
}
|
|
|
|
void opengl_minimize()
|
|
{
|
|
HWND wnd=(HWND)os_get_window();
|
|
mprintf(("opengl_minimize\n"));
|
|
|
|
os_suspend();
|
|
ShowWindow(wnd, SW_MINIMIZE);
|
|
ChangeDisplaySettings(NULL,0);
|
|
os_resume();
|
|
}
|
|
|
|
|
|
void gr_opengl_set_state(gr_texture_source ts, gr_alpha_blend ab, gr_zbuffer_type zt)
|
|
{
|
|
switch (ts) {
|
|
case TEXTURE_SOURCE_NONE:
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
gr_tcache_set(-1, -1, NULL, NULL );
|
|
break;
|
|
case TEXTURE_SOURCE_DECAL:
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
break;
|
|
case TEXTURE_SOURCE_NO_FILTERING:
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
break;
|
|
case TEXTURE_SOURCE_ADD:
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (ab) {
|
|
case ALPHA_BLEND_NONE:
|
|
glBlendFunc(GL_ONE, GL_ZERO);
|
|
break;
|
|
case ALPHA_BLEND_ALPHA_ADDITIVE:
|
|
glBlendFunc(GL_ONE, GL_ONE);
|
|
break;
|
|
case ALPHA_BLEND_ALPHA_BLEND_ALPHA:
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
break;
|
|
case ALPHA_BLEND_ALPHA_BLEND_SRC_COLOR:
|
|
glBlendFunc(GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (zt) {
|
|
case ZBUFFER_TYPE_NONE:
|
|
glDepthFunc(GL_ALWAYS);
|
|
glDepthMask(GL_FALSE);
|
|
break;
|
|
case ZBUFFER_TYPE_READ:
|
|
glDepthFunc(GL_LESS);
|
|
glDepthMask(GL_FALSE);
|
|
break;
|
|
case ZBUFFER_TYPE_WRITE:
|
|
glDepthFunc(GL_ALWAYS);
|
|
glDepthMask(GL_TRUE);
|
|
break;
|
|
case ZBUFFER_TYPE_FULL:
|
|
glDepthFunc(GL_LESS);
|
|
glDepthMask(GL_TRUE);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void gr_opengl_activate(int active)
|
|
{
|
|
HWND wnd=(HWND)os_get_window();
|
|
if (active) {
|
|
GL_activate++;
|
|
opengl_go_fullscreen(wnd);
|
|
|
|
} else {
|
|
GL_deactivate++;
|
|
opengl_minimize();
|
|
}
|
|
|
|
STUB_FUNCTION;
|
|
}
|
|
|
|
|
|
void opengl_tcache_flush ();
|
|
|
|
void gr_opengl_preload_init()
|
|
{
|
|
if (gr_screen.mode != GR_OPENGL) {
|
|
return;
|
|
}
|
|
|
|
opengl_tcache_flush ();
|
|
}
|
|
|
|
int GL_should_preload = 0;
|
|
int gr_opengl_preload(int bitmap_num, int is_aabitmap)
|
|
{
|
|
if ( gr_screen.mode != GR_OPENGL) {
|
|
return 0;
|
|
}
|
|
|
|
if ( !GL_should_preload ) {
|
|
return 0;
|
|
}
|
|
|
|
float u_scale, v_scale;
|
|
|
|
int retval;
|
|
if ( is_aabitmap ) {
|
|
retval = gr_tcache_set(bitmap_num, TCACHE_TYPE_AABITMAP, &u_scale, &v_scale, 1 );
|
|
} else {
|
|
retval = gr_tcache_set(bitmap_num, TCACHE_TYPE_NORMAL, &u_scale, &v_scale, 1 );
|
|
}
|
|
|
|
if ( !retval ) {
|
|
mprintf(("Texture upload failed!\n" ));
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
void gr_opengl_pixel(int x, int y)
|
|
{
|
|
gr_line(x,y,x,y);
|
|
}
|
|
|
|
void gr_opengl_clear()
|
|
{
|
|
glClearColor(gr_screen.current_clear_color.red / 255.0f,
|
|
gr_screen.current_clear_color.green / 255.0f,
|
|
gr_screen.current_clear_color.blue / 255.0f, 1.0f);
|
|
|
|
glClear ( GL_COLOR_BUFFER_BIT );
|
|
}
|
|
|
|
void gr_opengl_save_mouse_area(int x, int y, int w, int h);
|
|
void opengl_tcache_frame ();
|
|
void gr_opengl_flip()
|
|
{
|
|
if (!OGL_inited) return;
|
|
|
|
gr_reset_clip();
|
|
|
|
mouse_eval_deltas();
|
|
|
|
Gr_opengl_mouse_saved = 0;
|
|
|
|
if ( mouse_is_visible() ) {
|
|
int mx, my;
|
|
|
|
gr_reset_clip();
|
|
mouse_get_pos( &mx, &my );
|
|
|
|
gr_opengl_save_mouse_area(mx,my,24,24);
|
|
|
|
if ( Gr_cursor == -1 ) {
|
|
// stuff
|
|
} else {
|
|
gr_set_bitmap(Gr_cursor);
|
|
gr_bitmap( mx, my );
|
|
}
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
GLenum error = glGetError();
|
|
int ic = 0;
|
|
do {
|
|
error = glGetError();
|
|
|
|
if (error != GL_NO_ERROR) {
|
|
nprintf(("Warning", "!!DEBUG!! OpenGL Error: %d (%d this frame)\n", gluErrorString(error), ic));
|
|
}
|
|
ic++;
|
|
} while (error != GL_NO_ERROR);
|
|
#endif
|
|
|
|
if(!SwapBuffers(GetDC((HWND)os_get_window())))
|
|
{
|
|
MessageBox((HWND)os_get_window(), "unable to swap buffers", "error", MB_OK);
|
|
exit(2);
|
|
}
|
|
|
|
opengl_tcache_frame ();
|
|
|
|
int cnt = GL_activate;
|
|
if ( cnt ) {
|
|
GL_activate-=cnt;
|
|
opengl_tcache_flush();
|
|
// gr_opengl_clip_cursor(1); /* mouse grab, see opengl_activate */
|
|
}
|
|
|
|
cnt = GL_deactivate;
|
|
if ( cnt ) {
|
|
GL_deactivate-=cnt;
|
|
// gr_opengl_clip_cursor(0); /* mouse grab, see opengl_activate */
|
|
}
|
|
}
|
|
|
|
void gr_opengl_flip_window(uint _hdc, int x, int y, int w, int h )
|
|
{
|
|
// Not used.
|
|
}
|
|
|
|
void gr_opengl_set_clip(int x,int y,int w,int h)
|
|
{
|
|
// check for sanity of parameters
|
|
if (x < 0)
|
|
x = 0;
|
|
if (y < 0)
|
|
y = 0;
|
|
|
|
if (x >= gr_screen.max_w)
|
|
x = gr_screen.max_w - 1;
|
|
if (y >= gr_screen.max_h)
|
|
y = gr_screen.max_h - 1;
|
|
|
|
if (x + w > gr_screen.max_w)
|
|
w = gr_screen.max_w - x;
|
|
if (y + h > gr_screen.max_h)
|
|
h = gr_screen.max_h - y;
|
|
|
|
if (w > gr_screen.max_w)
|
|
w = gr_screen.max_w;
|
|
if (h > gr_screen.max_h)
|
|
h = gr_screen.max_h;
|
|
|
|
gr_screen.offset_x = x;
|
|
gr_screen.offset_y = y;
|
|
gr_screen.clip_left = 0;
|
|
gr_screen.clip_right = w-1;
|
|
gr_screen.clip_top = 0;
|
|
gr_screen.clip_bottom = h-1;
|
|
gr_screen.clip_width = w;
|
|
gr_screen.clip_height = h;
|
|
|
|
glEnable(GL_SCISSOR_TEST);
|
|
glScissor(x, gr_screen.max_h-y-h, w, h);
|
|
}
|
|
|
|
void gr_opengl_reset_clip()
|
|
{
|
|
gr_screen.offset_x = 0;
|
|
gr_screen.offset_y = 0;
|
|
gr_screen.clip_left = 0;
|
|
gr_screen.clip_top = 0;
|
|
gr_screen.clip_right = gr_screen.max_w - 1;
|
|
gr_screen.clip_bottom = gr_screen.max_h - 1;
|
|
gr_screen.clip_width = gr_screen.max_w;
|
|
gr_screen.clip_height = gr_screen.max_h;
|
|
|
|
glDisable(GL_SCISSOR_TEST);
|
|
// glScissor(0, 0, gr_screen.max_w, gr_screen.max_h);
|
|
}
|
|
|
|
void gr_opengl_set_bitmap( int bitmap_num, int alphablend_mode, int bitblt_mode, float alpha, int sx, int sy )
|
|
{
|
|
gr_screen.current_alpha = alpha;
|
|
gr_screen.current_alphablend_mode = alphablend_mode;
|
|
gr_screen.current_bitblt_mode = bitblt_mode;
|
|
gr_screen.current_bitmap = bitmap_num;
|
|
|
|
gr_screen.current_bitmap_sx = sx;
|
|
gr_screen.current_bitmap_sy = sy;
|
|
}
|
|
|
|
void gr_opengl_create_shader(shader * shade, float r, float g, float b, float c )
|
|
{
|
|
shade->screen_sig = gr_screen.signature;
|
|
shade->r = r;
|
|
shade->g = g;
|
|
shade->b = b;
|
|
shade->c = c;
|
|
}
|
|
|
|
void gr_opengl_set_shader( shader * shade )
|
|
{
|
|
if ( shade ) {
|
|
if (shade->screen_sig != gr_screen.signature) {
|
|
gr_create_shader( shade, shade->r, shade->g, shade->b, shade->c );
|
|
}
|
|
gr_screen.current_shader = *shade;
|
|
} else {
|
|
gr_create_shader( &gr_screen.current_shader, 0.0f, 0.0f, 0.0f, 0.0f );
|
|
}
|
|
}
|
|
|
|
void gr_opengl_rect_internal(int x, int y, int w, int h, int r, int g, int b, int a)
|
|
{
|
|
int saved_zbuf;
|
|
vertex v[4];
|
|
vertex *verts[4] = {&v[0], &v[1], &v[2], &v[3]};
|
|
|
|
saved_zbuf = gr_zbuffer_get();
|
|
|
|
// start the frame, no zbuffering, no culling
|
|
g3_start_frame(1);
|
|
gr_zbuffer_set(GR_ZBUFF_NONE);
|
|
gr_set_cull(0);
|
|
|
|
// stuff coords
|
|
v[0].sx = i2fl(x);
|
|
v[0].sy = i2fl(y);
|
|
v[0].sw = 0.0f;
|
|
v[0].u = 0.0f;
|
|
v[0].v = 0.0f;
|
|
v[0].flags = PF_PROJECTED;
|
|
v[0].codes = 0;
|
|
v[0].r = (ubyte)r;
|
|
v[0].g = (ubyte)g;
|
|
v[0].b = (ubyte)b;
|
|
v[0].a = (ubyte)a;
|
|
|
|
v[1].sx = i2fl(x + w);
|
|
v[1].sy = i2fl(y);
|
|
v[1].sw = 0.0f;
|
|
v[1].u = 0.0f;
|
|
v[1].v = 0.0f;
|
|
v[1].flags = PF_PROJECTED;
|
|
v[1].codes = 0;
|
|
v[1].r = (ubyte)r;
|
|
v[1].g = (ubyte)g;
|
|
v[1].b = (ubyte)b;
|
|
v[1].a = (ubyte)a;
|
|
|
|
v[2].sx = i2fl(x + w);
|
|
v[2].sy = i2fl(y + h);
|
|
v[2].sw = 0.0f;
|
|
v[2].u = 0.0f;
|
|
v[2].v = 0.0f;
|
|
v[2].flags = PF_PROJECTED;
|
|
v[2].codes = 0;
|
|
v[2].r = (ubyte)r;
|
|
v[2].g = (ubyte)g;
|
|
v[2].b = (ubyte)b;
|
|
v[2].a = (ubyte)a;
|
|
|
|
v[3].sx = i2fl(x);
|
|
v[3].sy = i2fl(y + h);
|
|
v[3].sw = 0.0f;
|
|
v[3].u = 0.0f;
|
|
v[3].v = 0.0f;
|
|
v[3].flags = PF_PROJECTED;
|
|
v[3].codes = 0;
|
|
v[3].r = (ubyte)r;
|
|
v[3].g = (ubyte)g;
|
|
v[3].b = (ubyte)b;
|
|
v[3].a = (ubyte)a;
|
|
|
|
// draw the polys
|
|
g3_draw_poly_constant_sw(4, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB | TMAP_FLAG_ALPHA, 0.1f);
|
|
|
|
g3_end_frame();
|
|
|
|
// restore zbuffer and culling
|
|
gr_zbuffer_set(saved_zbuf);
|
|
gr_set_cull(1);
|
|
}
|
|
|
|
void gr_opengl_rect(int x,int y,int w,int h)
|
|
{
|
|
gr_opengl_rect_internal(x, y, w, h, gr_screen.current_color.red, gr_screen.current_color.green, gr_screen.current_color.blue, gr_screen.current_color.alpha);
|
|
}
|
|
|
|
void gr_opengl_shade(int x,int y,int w,int h)
|
|
{
|
|
int r,g,b,a;
|
|
|
|
float shade1 = 1.0f;
|
|
float shade2 = 6.0f;
|
|
|
|
r = fl2i(gr_screen.current_shader.r*255.0f*shade1);
|
|
if ( r < 0 ) r = 0; else if ( r > 255 ) r = 255;
|
|
g = fl2i(gr_screen.current_shader.g*255.0f*shade1);
|
|
if ( g < 0 ) g = 0; else if ( g > 255 ) g = 255;
|
|
b = fl2i(gr_screen.current_shader.b*255.0f*shade1);
|
|
if ( b < 0 ) b = 0; else if ( b > 255 ) b = 255;
|
|
a = fl2i(gr_screen.current_shader.c*255.0f*shade2);
|
|
if ( a < 0 ) a = 0; else if ( a > 255 ) a = 255;
|
|
|
|
gr_opengl_rect_internal(x, y, w, h, r, g, b, a);
|
|
}
|
|
|
|
void gr_opengl_aabitmap_ex_internal(int x,int y,int w,int h,int sx,int sy)
|
|
{
|
|
// mprintf(("gr_opengl_aabitmap_ex_internal: at (%3d,%3d) size (%3d,%3d) name %s\n",
|
|
// x, y, w, h,
|
|
// bm_get_filename(gr_screen.current_bitmap)));
|
|
if ( w < 1 ) return;
|
|
if ( h < 1 ) return;
|
|
|
|
if ( !gr_screen.current_color.is_alphacolor ) return;
|
|
|
|
float u_scale, v_scale;
|
|
|
|
gr_opengl_set_state( TEXTURE_SOURCE_NO_FILTERING, ALPHA_BLEND_ALPHA_BLEND_ALPHA, ZBUFFER_TYPE_NONE );
|
|
|
|
if ( !gr_tcache_set( gr_screen.current_bitmap, TCACHE_TYPE_AABITMAP, &u_scale, &v_scale ) ) {
|
|
// Couldn't set texture
|
|
mprintf(( "WARNING: Error setting aabitmap texture!\n" ));
|
|
return;
|
|
}
|
|
|
|
float u0, u1, v0, v1;
|
|
float x1, x2, y1, y2;
|
|
int bw, bh;
|
|
|
|
bm_get_info( gr_screen.current_bitmap, &bw, &bh );
|
|
|
|
u0 = u_scale*i2fl(sx)/i2fl(bw);
|
|
v0 = v_scale*i2fl(sy)/i2fl(bh);
|
|
|
|
u1 = u_scale*i2fl(sx+w)/i2fl(bw);
|
|
v1 = v_scale*i2fl(sy+h)/i2fl(bh);
|
|
|
|
x1 = i2fl(x+gr_screen.offset_x);
|
|
y1 = i2fl(y+gr_screen.offset_y);
|
|
x2 = i2fl(x+w+gr_screen.offset_x);
|
|
y2 = i2fl(y+h+gr_screen.offset_y);
|
|
|
|
if ( gr_screen.current_color.is_alphacolor ) {
|
|
glColor4ub(gr_screen.current_color.red, gr_screen.current_color.green, gr_screen.current_color.blue,gr_screen.current_color.alpha);
|
|
//glColor3ub(255,255,255);
|
|
} else {
|
|
glColor3ub(gr_screen.current_color.red, gr_screen.current_color.green, gr_screen.current_color.blue);
|
|
//glColor3ub(255,255,255);
|
|
}
|
|
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (u0, v1);
|
|
glVertex3f (x1, y2, -0.99f);
|
|
|
|
glTexCoord2f (u1, v1);
|
|
glVertex3f (x2, y2, -0.99f);
|
|
|
|
glTexCoord2f (u1, v0);
|
|
glVertex3f (x2, y1, -0.99f);
|
|
|
|
glTexCoord2f (u0, v0);
|
|
glVertex3f (x1, y1, -0.99f);
|
|
glEnd ();
|
|
|
|
}
|
|
|
|
void gr_opengl_aabitmap_ex(int x,int y,int w,int h,int sx,int sy)
|
|
{
|
|
int reclip;
|
|
#ifndef NDEBUG
|
|
int count = 0;
|
|
#endif
|
|
|
|
int dx1=x, dx2=x+w-1;
|
|
int dy1=y, dy2=y+h-1;
|
|
|
|
int bw, bh;
|
|
bm_get_info( gr_screen.current_bitmap, &bw, &bh, NULL );
|
|
|
|
do {
|
|
reclip = 0;
|
|
#ifndef NDEBUG
|
|
if ( count > 1 ) Int3();
|
|
count++;
|
|
#endif
|
|
|
|
if ((dx1 > gr_screen.clip_right ) || (dx2 < gr_screen.clip_left)) return;
|
|
if ((dy1 > gr_screen.clip_bottom ) || (dy2 < gr_screen.clip_top)) return;
|
|
if ( dx1 < gr_screen.clip_left ) { sx += gr_screen.clip_left-dx1; dx1 = gr_screen.clip_left; }
|
|
if ( dy1 < gr_screen.clip_top ) { sy += gr_screen.clip_top-dy1; dy1 = gr_screen.clip_top; }
|
|
if ( dx2 > gr_screen.clip_right ) { dx2 = gr_screen.clip_right; }
|
|
if ( dy2 > gr_screen.clip_bottom ) { dy2 = gr_screen.clip_bottom; }
|
|
|
|
if ( sx < 0 ) {
|
|
dx1 -= sx;
|
|
sx = 0;
|
|
reclip = 1;
|
|
}
|
|
|
|
if ( sy < 0 ) {
|
|
dy1 -= sy;
|
|
sy = 0;
|
|
reclip = 1;
|
|
}
|
|
|
|
w = dx2-dx1+1;
|
|
h = dy2-dy1+1;
|
|
|
|
if ( sx + w > bw ) {
|
|
w = bw - sx;
|
|
dx2 = dx1 + w - 1;
|
|
}
|
|
|
|
if ( sy + h > bh ) {
|
|
h = bh - sy;
|
|
dy2 = dy1 + h - 1;
|
|
}
|
|
|
|
if ( w < 1 ) return; // clipped away!
|
|
if ( h < 1 ) return; // clipped away!
|
|
|
|
} while (reclip);
|
|
|
|
// Make sure clipping algorithm works
|
|
#ifndef NDEBUG
|
|
Assert( w > 0 );
|
|
Assert( h > 0 );
|
|
Assert( w == (dx2-dx1+1) );
|
|
Assert( h == (dy2-dy1+1) );
|
|
Assert( sx >= 0 );
|
|
Assert( sy >= 0 );
|
|
Assert( sx+w <= bw );
|
|
Assert( sy+h <= bh );
|
|
Assert( dx2 >= dx1 );
|
|
Assert( dy2 >= dy1 );
|
|
Assert( (dx1 >= gr_screen.clip_left ) && (dx1 <= gr_screen.clip_right) );
|
|
Assert( (dx2 >= gr_screen.clip_left ) && (dx2 <= gr_screen.clip_right) );
|
|
Assert( (dy1 >= gr_screen.clip_top ) && (dy1 <= gr_screen.clip_bottom) );
|
|
Assert( (dy2 >= gr_screen.clip_top ) && (dy2 <= gr_screen.clip_bottom) );
|
|
#endif
|
|
|
|
// We now have dx1,dy1 and dx2,dy2 and sx, sy all set validly within clip regions.
|
|
gr_opengl_aabitmap_ex_internal(dx1,dy1,dx2-dx1+1,dy2-dy1+1,sx,sy);
|
|
}
|
|
|
|
void gr_opengl_aabitmap(int x, int y)
|
|
{
|
|
int w, h;
|
|
|
|
bm_get_info( gr_screen.current_bitmap, &w, &h, NULL );
|
|
int dx1=x, dx2=x+w-1;
|
|
int dy1=y, dy2=y+h-1;
|
|
int sx=0, sy=0;
|
|
|
|
if ((dx1 > gr_screen.clip_right ) || (dx2 < gr_screen.clip_left)) return;
|
|
if ((dy1 > gr_screen.clip_bottom ) || (dy2 < gr_screen.clip_top)) return;
|
|
if ( dx1 < gr_screen.clip_left ) { sx = gr_screen.clip_left-dx1; dx1 = gr_screen.clip_left; }
|
|
if ( dy1 < gr_screen.clip_top ) { sy = gr_screen.clip_top-dy1; dy1 = gr_screen.clip_top; }
|
|
if ( dx2 > gr_screen.clip_right ) { dx2 = gr_screen.clip_right; }
|
|
if ( dy2 > gr_screen.clip_bottom ) { dy2 = gr_screen.clip_bottom; }
|
|
|
|
if ( sx < 0 ) return;
|
|
if ( sy < 0 ) return;
|
|
if ( sx >= w ) return;
|
|
if ( sy >= h ) return;
|
|
|
|
// Draw bitmap bm[sx,sy] into (dx1,dy1)-(dx2,dy2)
|
|
gr_aabitmap_ex(dx1,dy1,dx2-dx1+1,dy2-dy1+1,sx,sy);
|
|
}
|
|
|
|
|
|
void gr_opengl_string( int sx, int sy, char *s )
|
|
{
|
|
int width, spacing, letter;
|
|
int x, y;
|
|
|
|
if ( !Current_font ) {
|
|
return;
|
|
}
|
|
|
|
gr_set_bitmap(Current_font->bitmap_id);
|
|
|
|
x = sx;
|
|
y = sy;
|
|
|
|
if (sx==0x8000) { //centered
|
|
x = get_centered_x(s);
|
|
} else {
|
|
x = sx;
|
|
}
|
|
|
|
spacing = 0;
|
|
|
|
while (*s) {
|
|
x += spacing;
|
|
|
|
while (*s== '\n' ) {
|
|
s++;
|
|
y += Current_font->h;
|
|
if (sx==0x8000) { //centered
|
|
x = get_centered_x(s);
|
|
} else {
|
|
x = sx;
|
|
}
|
|
}
|
|
if (*s == 0 ) break;
|
|
|
|
letter = get_char_width(s[0],s[1],&width,&spacing);
|
|
s++;
|
|
|
|
//not in font, draw as space
|
|
if (letter<0) {
|
|
continue;
|
|
}
|
|
|
|
int xd, yd, xc, yc;
|
|
int wc, hc;
|
|
|
|
// Check if this character is totally clipped
|
|
if ( x + width < gr_screen.clip_left ) continue;
|
|
if ( y + Current_font->h < gr_screen.clip_top ) continue;
|
|
if ( x > gr_screen.clip_right ) continue;
|
|
if ( y > gr_screen.clip_bottom ) continue;
|
|
|
|
xd = yd = 0;
|
|
if ( x < gr_screen.clip_left ) xd = gr_screen.clip_left - x;
|
|
if ( y < gr_screen.clip_top ) yd = gr_screen.clip_top - y;
|
|
xc = x+xd;
|
|
yc = y+yd;
|
|
|
|
wc = width - xd; hc = Current_font->h - yd;
|
|
if ( xc + wc > gr_screen.clip_right ) wc = gr_screen.clip_right - xc;
|
|
if ( yc + hc > gr_screen.clip_bottom ) hc = gr_screen.clip_bottom - yc;
|
|
|
|
if ( wc < 1 ) continue;
|
|
if ( hc < 1 ) continue;
|
|
|
|
int u = Current_font->bm_u[letter];
|
|
int v = Current_font->bm_v[letter];
|
|
|
|
gr_opengl_aabitmap_ex_internal( xc, yc, wc, hc, u+xd, v+yd );
|
|
}
|
|
}
|
|
|
|
void gr_opengl_line(int x1,int y1,int x2,int y2)
|
|
{
|
|
int clipped = 0, swapped=0;
|
|
|
|
gr_opengl_set_state( TEXTURE_SOURCE_NONE, ALPHA_BLEND_ALPHA_BLEND_ALPHA, ZBUFFER_TYPE_NONE );
|
|
|
|
INT_CLIPLINE(x1,y1,x2,y2,gr_screen.clip_left,gr_screen.clip_top,gr_screen.clip_right,gr_screen.clip_bottom,return,clipped=1,swapped=1);
|
|
|
|
float sx1, sy1;
|
|
float sx2, sy2;
|
|
|
|
sx1 = i2fl(x1 + gr_screen.offset_x);
|
|
sy1 = i2fl(y1 + gr_screen.offset_y);
|
|
sx2 = i2fl(x2 + gr_screen.offset_x);
|
|
sy2 = i2fl(y2 + gr_screen.offset_y);
|
|
|
|
if ( x1 == x2 && y1 == y2 ) {
|
|
glBegin (GL_POINTS);
|
|
glColor4ub (gr_screen.current_color.red, gr_screen.current_color.green, gr_screen.current_color.blue, gr_screen.current_color.alpha);
|
|
glVertex3f (sx1, sy1, -0.99f);
|
|
glEnd ();
|
|
|
|
return;
|
|
}
|
|
|
|
if ( x1 == x2 ) {
|
|
if ( sy1 < sy2 ) {
|
|
sy2 += 0.5f;
|
|
} else {
|
|
sy1 += 0.5f;
|
|
}
|
|
} else if ( y1 == y2 ) {
|
|
if ( sx1 < sx2 ) {
|
|
sx2 += 0.5f;
|
|
} else {
|
|
sx1 += 0.5f;
|
|
}
|
|
}
|
|
|
|
glBegin (GL_LINES);
|
|
glColor4ub (gr_screen.current_color.red, gr_screen.current_color.green, gr_screen.current_color.blue, gr_screen.current_color.alpha);
|
|
glVertex3f (sx2, sy2, -0.99f);
|
|
glVertex3f (sx1, sy1, -0.99f);
|
|
glEnd ();
|
|
}
|
|
|
|
void gr_opengl_aaline(vertex *v1, vertex *v2)
|
|
{
|
|
gr_opengl_line( fl2i(v1->sx), fl2i(v1->sy), fl2i(v2->sx), fl2i(v2->sy) );
|
|
}
|
|
|
|
void gr_opengl_gradient(int x1,int y1,int x2,int y2)
|
|
{
|
|
int clipped = 0, swapped=0;
|
|
|
|
if ( !gr_screen.current_color.is_alphacolor ) {
|
|
gr_line( x1, y1, x2, y2 );
|
|
return;
|
|
}
|
|
|
|
INT_CLIPLINE(x1,y1,x2,y2,gr_screen.clip_left,gr_screen.clip_top,gr_screen.clip_right,gr_screen.clip_bottom,return,clipped=1,swapped=1);
|
|
|
|
gr_opengl_set_state( TEXTURE_SOURCE_NONE, ALPHA_BLEND_ALPHA_BLEND_ALPHA, ZBUFFER_TYPE_NONE );
|
|
|
|
int aa = swapped ? 0 : gr_screen.current_color.alpha;
|
|
int ba = swapped ? gr_screen.current_color.alpha : 0;
|
|
|
|
float sx1, sy1;
|
|
float sx2, sy2;
|
|
|
|
sx1 = i2fl(x1 + gr_screen.offset_x);
|
|
sy1 = i2fl(y1 + gr_screen.offset_y);
|
|
sx2 = i2fl(x2 + gr_screen.offset_x);
|
|
sy2 = i2fl(y2 + gr_screen.offset_y);
|
|
|
|
if ( x1 == x2 ) {
|
|
if ( sy1 < sy2 ) {
|
|
sy2 += 0.5f;
|
|
} else {
|
|
sy1 += 0.5f;
|
|
}
|
|
} else if ( y1 == y2 ) {
|
|
if ( sx1 < sx2 ) {
|
|
sx2 += 0.5f;
|
|
} else {
|
|
sx1 += 0.5f;
|
|
}
|
|
}
|
|
|
|
glBegin (GL_LINES);
|
|
glColor4ub ((ubyte)gr_screen.current_color.red, (ubyte)gr_screen.current_color.green, (ubyte)gr_screen.current_color.blue, (ubyte)ba);
|
|
glVertex3f (sx2, sy2, -0.99f);
|
|
glColor4ub ((ubyte)gr_screen.current_color.red, (ubyte)gr_screen.current_color.green, (ubyte)gr_screen.current_color.blue, (ubyte)aa);
|
|
glVertex3f (sx1, sy1, -0.99f);
|
|
glEnd ();
|
|
}
|
|
|
|
void gr_opengl_circle( int xc, int yc, int d )
|
|
{
|
|
int p,x, y, r;
|
|
|
|
r = d/2;
|
|
p=3-d;
|
|
x=0;
|
|
y=r;
|
|
|
|
// Big clip
|
|
if ( (xc+r) < gr_screen.clip_left ) return;
|
|
if ( (xc-r) > gr_screen.clip_right ) return;
|
|
if ( (yc+r) < gr_screen.clip_top ) return;
|
|
if ( (yc-r) > gr_screen.clip_bottom ) return;
|
|
|
|
while(x<y) {
|
|
// Draw the first octant
|
|
gr_opengl_line( xc-y, yc-x, xc+y, yc-x );
|
|
gr_opengl_line( xc-y, yc+x, xc+y, yc+x );
|
|
|
|
if (p<0)
|
|
p=p+(x<<2)+6;
|
|
else {
|
|
// Draw the second octant
|
|
gr_opengl_line( xc-x, yc-y, xc+x, yc-y );
|
|
gr_opengl_line( xc-x, yc+y, xc+x, yc+y );
|
|
|
|
p=p+((x-y)<<2)+10;
|
|
y--;
|
|
}
|
|
x++;
|
|
}
|
|
if(x==y) {
|
|
gr_opengl_line( xc-x, yc-y, xc+x, yc-y );
|
|
gr_opengl_line( xc-x, yc+y, xc+x, yc+y );
|
|
}
|
|
return;
|
|
}
|
|
|
|
void gr_opengl_stuff_fog_value(float z, int *r, int *g, int *b, int *a)
|
|
{
|
|
float f_float;
|
|
|
|
f_float = (gr_screen.fog_far - z) / (gr_screen.fog_far - gr_screen.fog_near);
|
|
if (f_float < 0.0f) {
|
|
f_float = 0.0f;
|
|
} else {
|
|
f_float = 1.0f;
|
|
}
|
|
*r = 0;
|
|
*g = 0;
|
|
*b = 0;
|
|
*a = (int)(f_float * 255.0);
|
|
}
|
|
|
|
void gr_opengl_tmapper_internal( int nv, vertex ** verts, uint flags, int is_scaler )
|
|
{
|
|
int i;
|
|
float u_scale = 1.0f, v_scale = 1.0f;
|
|
#ifndef NDEBUG
|
|
// int bitmapidx=gr_screen.current_bitmap % MAX_BITMAPS;
|
|
#endif
|
|
int do_glow=(GLOWMAP > 0);
|
|
|
|
// if (do_glow)
|
|
// Int3();
|
|
// Make nebula use the texture mapper... this blends the colors better.
|
|
if ( flags & TMAP_FLAG_NEBULA ){
|
|
Int3 ();
|
|
}
|
|
|
|
gr_texture_source texture_source = (gr_texture_source)-1;
|
|
gr_alpha_blend alpha_blend = (gr_alpha_blend)-1;
|
|
gr_zbuffer_type zbuffer_type = (gr_zbuffer_type)-1;
|
|
|
|
if ( gr_zbuffering ) {
|
|
if ( is_scaler || (gr_screen.current_alphablend_mode == GR_ALPHABLEND_FILTER) ) {
|
|
zbuffer_type = ZBUFFER_TYPE_READ;
|
|
} else {
|
|
zbuffer_type = ZBUFFER_TYPE_FULL;
|
|
}
|
|
} else {
|
|
zbuffer_type = ZBUFFER_TYPE_NONE;
|
|
}
|
|
|
|
int alpha;
|
|
|
|
int tmap_type = TCACHE_TYPE_NORMAL;
|
|
|
|
int r, g, b;
|
|
|
|
if ( flags & TMAP_FLAG_TEXTURED ) {
|
|
r = g = b = 255;
|
|
} else {
|
|
r = gr_screen.current_color.red;
|
|
g = gr_screen.current_color.green;
|
|
b = gr_screen.current_color.blue;
|
|
}
|
|
|
|
if ( gr_screen.current_alphablend_mode == GR_ALPHABLEND_FILTER )
|
|
{
|
|
if (1) {
|
|
tmap_type = TCACHE_TYPE_NORMAL;
|
|
alpha_blend = ALPHA_BLEND_ALPHA_ADDITIVE;
|
|
|
|
// Blend with screen pixel using src*alpha+dst
|
|
float factor = gr_screen.current_alpha;
|
|
|
|
alpha = 255;
|
|
|
|
if ( factor <= 1.0f ) {
|
|
int tmp_alpha = fl2i(gr_screen.current_alpha*255.0f);
|
|
r = (r*tmp_alpha)/255;
|
|
g = (g*tmp_alpha)/255;
|
|
b = (b*tmp_alpha)/255;
|
|
}
|
|
} else {
|
|
tmap_type = TCACHE_TYPE_XPARENT;
|
|
|
|
alpha_blend = ALPHA_BLEND_ALPHA_BLEND_ALPHA;
|
|
|
|
// Blend with screen pixel using src*alpha+dst
|
|
float factor = gr_screen.current_alpha;
|
|
|
|
if ( factor > 1.0f ) {
|
|
alpha = 255;
|
|
} else {
|
|
alpha = fl2i(gr_screen.current_alpha*255.0f);
|
|
}
|
|
}
|
|
} else {
|
|
if(Bm_pixel_format == BM_PIXEL_FORMAT_ARGB) {
|
|
alpha_blend = ALPHA_BLEND_ALPHA_BLEND_ALPHA;
|
|
} else {
|
|
alpha_blend = ALPHA_BLEND_NONE;
|
|
}
|
|
alpha = 255;
|
|
}
|
|
|
|
if(flags & TMAP_FLAG_BITMAP_SECTION){
|
|
tmap_type = TCACHE_TYPE_BITMAP_SECTION;
|
|
}
|
|
|
|
texture_source = TEXTURE_SOURCE_NONE;
|
|
|
|
if ( flags & TMAP_FLAG_TEXTURED ) {
|
|
if (do_glow)
|
|
{
|
|
#ifdef _DEBUG
|
|
// mprintf(("rendering a glow texture %s\n", bm_get_filename(GLOWMAP[bitmapidx])));
|
|
#endif
|
|
glPushAttrib(GL_TEXTURE_BIT);
|
|
glActiveTextureARB(GL_TEXTURE0_ARB); //texture is bound in gr_opengl_tcache_set
|
|
glEnable(GL_TEXTURE_2D);
|
|
texture_source=TEXTURE_SOURCE_DECAL;
|
|
}
|
|
|
|
if ( !gr_tcache_set(gr_screen.current_bitmap, tmap_type, &u_scale, &v_scale, 0, gr_screen.current_bitmap_sx, gr_screen.current_bitmap_sy ))
|
|
{
|
|
mprintf(( "Not rendering a texture because it didn't fit in VRAM!\n" ));
|
|
return;
|
|
}
|
|
|
|
if (do_glow)
|
|
{
|
|
gr_opengl_set_state(texture_source, alpha_blend, zbuffer_type);
|
|
gr_set_bitmap(GLOWMAP, GR_ALPHABLEND_FILTER, GR_BITBLT_MODE_NORMAL, 0.0f);
|
|
glActiveTextureARB(GL_TEXTURE1_ARB);
|
|
glEnable(GL_TEXTURE_2D);
|
|
texture_source=TEXTURE_SOURCE_ADD;
|
|
//texture is bound in gr_opengl_tcache_set
|
|
if ( !gr_tcache_set(gr_screen.current_bitmap, tmap_type, &u_scale, &v_scale, 0, gr_screen.current_bitmap_sx, gr_screen.current_bitmap_sy ))
|
|
{
|
|
mprintf(( "Not rendering a texture because it didn't fit in VRAM!\n" ));
|
|
return;
|
|
}
|
|
gr_opengl_set_state(texture_source, alpha_blend, zbuffer_type);
|
|
}
|
|
|
|
|
|
|
|
// use nonfiltered textures for bitmap sections
|
|
if(flags & TMAP_FLAG_BITMAP_SECTION){
|
|
texture_source = TEXTURE_SOURCE_NO_FILTERING;
|
|
} else {
|
|
texture_source = TEXTURE_SOURCE_DECAL;
|
|
}
|
|
}
|
|
|
|
|
|
if (!do_glow)
|
|
gr_opengl_set_state( texture_source, alpha_blend, zbuffer_type );
|
|
|
|
if ( flags & TMAP_FLAG_TEXTURED )
|
|
{
|
|
// rendition junk
|
|
// STUB_FUNCTION;
|
|
}
|
|
|
|
if (flags & TMAP_FLAG_PIXEL_FOG) {
|
|
int r, g, b;
|
|
int ra, ga, ba;
|
|
ra = ga = ba = 0;
|
|
|
|
/* argh */
|
|
for (i=nv-1;i>=0;i--) // DDOI - change polygon winding
|
|
{
|
|
vertex * va = verts[i];
|
|
float sx, sy;
|
|
|
|
int x, y;
|
|
x = fl2i(va->sx*16.0f);
|
|
y = fl2i(va->sy*16.0f);
|
|
|
|
x += gr_screen.offset_x*16;
|
|
y += gr_screen.offset_y*16;
|
|
|
|
sx = i2fl(x) / 16.0f;
|
|
sy = i2fl(y) / 16.0f;
|
|
|
|
neb2_get_pixel((int)sx, (int)sy, &r, &g, &b);
|
|
|
|
ra += r;
|
|
ga += g;
|
|
ba += b;
|
|
}
|
|
|
|
ra /= nv;
|
|
ga /= nv;
|
|
ba /= nv;
|
|
|
|
gr_fog_set(GR_FOGMODE_FOG, ra, ga, ba);
|
|
}
|
|
|
|
glBegin(GL_TRIANGLE_FAN);
|
|
for (i = nv-1; i >= 0; i--) {
|
|
vertex * va = verts[i];
|
|
float sx, sy, sz;
|
|
float tu, tv;
|
|
float rhw;
|
|
int a;
|
|
|
|
if ( gr_zbuffering || (flags & TMAP_FLAG_NEBULA) ) {
|
|
sz = float(1.0 - 1.0 / (1.0 + va->z / (32768.0 / 256.0)));
|
|
|
|
if ( sz > 0.98f ) {
|
|
sz = 0.98f;
|
|
}
|
|
} else {
|
|
sz = 0.99f;
|
|
}
|
|
|
|
if ( flags & TMAP_FLAG_CORRECT ) {
|
|
rhw = va->sw;
|
|
} else {
|
|
rhw = 1.0f;
|
|
}
|
|
|
|
if (flags & TMAP_FLAG_ALPHA) {
|
|
a = verts[i]->a;
|
|
} else {
|
|
a = alpha;
|
|
}
|
|
|
|
if (flags & TMAP_FLAG_NEBULA ) {
|
|
int pal = (verts[i]->b*(NEBULA_COLORS-1))/255;
|
|
r = gr_palette[pal*3+0];
|
|
g = gr_palette[pal*3+1];
|
|
b = gr_palette[pal*3+2];
|
|
} else if ( (flags & TMAP_FLAG_RAMP) && (flags & TMAP_FLAG_GOURAUD) ) {
|
|
r = Gr_gamma_lookup[verts[i]->b];
|
|
g = Gr_gamma_lookup[verts[i]->b];
|
|
b = Gr_gamma_lookup[verts[i]->b];
|
|
} else if ( (flags & TMAP_FLAG_RGB) && (flags & TMAP_FLAG_GOURAUD) ) {
|
|
// Make 0.75 be 256.0f
|
|
r = Gr_gamma_lookup[verts[i]->r];
|
|
g = Gr_gamma_lookup[verts[i]->g];
|
|
b = Gr_gamma_lookup[verts[i]->b];
|
|
} else {
|
|
// use constant RGB values...
|
|
}
|
|
|
|
glColor4ub ((ubyte)r,(ubyte)g,(ubyte)b,(ubyte)a);
|
|
|
|
if((gr_screen.current_fog_mode != GR_FOGMODE_NONE) && (OGL_fogmode == 3)){
|
|
int sr, sg, sb, sa;
|
|
|
|
/* this is for GL_EXT_SECONDARY_COLOR */
|
|
gr_opengl_stuff_fog_value(va->z, &sr, &sg, &sb, &sa);
|
|
/* do separate color call here */
|
|
|
|
STUB_FUNCTION;
|
|
}
|
|
|
|
int x, y;
|
|
x = fl2i(va->sx*16.0f);
|
|
y = fl2i(va->sy*16.0f);
|
|
|
|
x += gr_screen.offset_x*16;
|
|
y += gr_screen.offset_y*16;
|
|
|
|
sx = i2fl(x) / 16.0f;
|
|
sy = i2fl(y) / 16.0f;
|
|
|
|
if ( flags & TMAP_FLAG_TEXTURED ) {
|
|
tu = va->u*u_scale;
|
|
tv = va->v*v_scale;
|
|
if (do_glow)
|
|
{
|
|
//use opengl hardware multitexturing
|
|
glMultiTexCoord2fARB(GL_TEXTURE0_ARB,tu,tv);
|
|
glMultiTexCoord2fARB(GL_TEXTURE1_ARB,tu,tv);
|
|
}
|
|
else
|
|
{
|
|
glTexCoord2f(tu, tv);
|
|
}
|
|
}
|
|
|
|
glVertex4f(sx/rhw, sy/rhw, -sz/rhw, 1.0f/rhw);
|
|
}
|
|
glEnd();
|
|
|
|
if (do_glow)
|
|
{
|
|
glPopAttrib();
|
|
}
|
|
}
|
|
|
|
|
|
void gr_opengl_tmapper( int nverts, vertex **verts, uint flags )
|
|
{
|
|
gr_opengl_tmapper_internal( nverts, verts, flags, 0 );
|
|
}
|
|
|
|
#define FIND_SCALED_NUM(x,x0,x1,y0,y1) (((((x)-(x0))*((y1)-(y0)))/((x1)-(x0)))+(y0))
|
|
|
|
void gr_opengl_scaler(vertex *va, vertex *vb )
|
|
{
|
|
float x0, y0, x1, y1;
|
|
float u0, v0, u1, v1;
|
|
float clipped_x0, clipped_y0, clipped_x1, clipped_y1;
|
|
float clipped_u0, clipped_v0, clipped_u1, clipped_v1;
|
|
float xmin, xmax, ymin, ymax;
|
|
int dx0, dy0, dx1, dy1;
|
|
|
|
//============= CLIP IT =====================
|
|
|
|
x0 = va->sx; y0 = va->sy;
|
|
x1 = vb->sx; y1 = vb->sy;
|
|
|
|
xmin = i2fl(gr_screen.clip_left); ymin = i2fl(gr_screen.clip_top);
|
|
xmax = i2fl(gr_screen.clip_right); ymax = i2fl(gr_screen.clip_bottom);
|
|
|
|
u0 = va->u; v0 = va->v;
|
|
u1 = vb->u; v1 = vb->v;
|
|
|
|
// Check for obviously offscreen bitmaps...
|
|
if ( (y1<=y0) || (x1<=x0) ) return;
|
|
if ( (x1<xmin ) || (x0>xmax) ) return;
|
|
if ( (y1<ymin ) || (y0>ymax) ) return;
|
|
|
|
clipped_u0 = u0; clipped_v0 = v0;
|
|
clipped_u1 = u1; clipped_v1 = v1;
|
|
|
|
clipped_x0 = x0; clipped_y0 = y0;
|
|
clipped_x1 = x1; clipped_y1 = y1;
|
|
|
|
// Clip the left, moving u0 right as necessary
|
|
if ( x0 < xmin ) {
|
|
clipped_u0 = FIND_SCALED_NUM(xmin,x0,x1,u0,u1);
|
|
clipped_x0 = xmin;
|
|
}
|
|
|
|
// Clip the right, moving u1 left as necessary
|
|
if ( x1 > xmax ) {
|
|
clipped_u1 = FIND_SCALED_NUM(xmax,x0,x1,u0,u1);
|
|
clipped_x1 = xmax;
|
|
}
|
|
|
|
// Clip the top, moving v0 down as necessary
|
|
if ( y0 < ymin ) {
|
|
clipped_v0 = FIND_SCALED_NUM(ymin,y0,y1,v0,v1);
|
|
clipped_y0 = ymin;
|
|
}
|
|
|
|
// Clip the bottom, moving v1 up as necessary
|
|
if ( y1 > ymax ) {
|
|
clipped_v1 = FIND_SCALED_NUM(ymax,y0,y1,v0,v1);
|
|
clipped_y1 = ymax;
|
|
}
|
|
|
|
dx0 = fl2i(clipped_x0); dx1 = fl2i(clipped_x1);
|
|
dy0 = fl2i(clipped_y0); dy1 = fl2i(clipped_y1);
|
|
|
|
if (dx1<=dx0) return;
|
|
if (dy1<=dy0) return;
|
|
|
|
//============= DRAW IT =====================
|
|
|
|
vertex v[4];
|
|
vertex *vl[4];
|
|
|
|
vl[0] = &v[0];
|
|
v->sx = clipped_x0;
|
|
v->sy = clipped_y0;
|
|
v->sw = va->sw;
|
|
v->z = va->z;
|
|
v->u = clipped_u0;
|
|
v->v = clipped_v0;
|
|
|
|
vl[1] = &v[1];
|
|
v[1].sx = clipped_x1;
|
|
v[1].sy = clipped_y0;
|
|
v[1].sw = va->sw;
|
|
v[1].z = va->z;
|
|
v[1].u = clipped_u1;
|
|
v[1].v = clipped_v0;
|
|
|
|
vl[2] = &v[2];
|
|
v[2].sx = clipped_x1;
|
|
v[2].sy = clipped_y1;
|
|
v[2].sw = va->sw;
|
|
v[2].z = va->z;
|
|
v[2].u = clipped_u1;
|
|
v[2].v = clipped_v1;
|
|
|
|
vl[3] = &v[3];
|
|
v[3].sx = clipped_x0;
|
|
v[3].sy = clipped_y1;
|
|
v[3].sw = va->sw;
|
|
v[3].z = va->z;
|
|
v[3].u = clipped_u0;
|
|
v[3].v = clipped_v1;
|
|
|
|
gr_opengl_tmapper_internal( 4, vl, TMAP_FLAG_TEXTURED, 1 );
|
|
}
|
|
|
|
void gr_opengl_set_palette(ubyte *new_palette, int is_alphacolor)
|
|
{
|
|
}
|
|
|
|
void gr_opengl_get_color( int * r, int * g, int * b )
|
|
{
|
|
if (r) *r = gr_screen.current_color.red;
|
|
if (g) *g = gr_screen.current_color.green;
|
|
if (b) *b = gr_screen.current_color.blue;
|
|
}
|
|
|
|
void gr_opengl_init_color(color *c, int r, int g, int b)
|
|
{
|
|
c->screen_sig = gr_screen.signature;
|
|
c->red = (unsigned char)r;
|
|
c->green = (unsigned char)g;
|
|
c->blue = (unsigned char)b;
|
|
c->alpha = 255;
|
|
c->ac_type = AC_TYPE_NONE;
|
|
c->alphacolor = -1;
|
|
c->is_alphacolor = 0;
|
|
c->magic = 0xAC01;
|
|
}
|
|
|
|
void gr_opengl_init_alphacolor( color *clr, int r, int g, int b, int alpha, int type )
|
|
{
|
|
if ( r < 0 ) r = 0; else if ( r > 255 ) r = 255;
|
|
if ( g < 0 ) g = 0; else if ( g > 255 ) g = 255;
|
|
if ( b < 0 ) b = 0; else if ( b > 255 ) b = 255;
|
|
if ( alpha < 0 ) alpha = 0; else if ( alpha > 255 ) alpha = 255;
|
|
|
|
gr_opengl_init_color( clr, r, g, b );
|
|
|
|
clr->alpha = (unsigned char)alpha;
|
|
clr->ac_type = (ubyte)type;
|
|
clr->alphacolor = -1;
|
|
clr->is_alphacolor = 1;
|
|
}
|
|
|
|
void gr_opengl_set_color( int r, int g, int b )
|
|
{
|
|
Assert((r >= 0) && (r < 256));
|
|
Assert((g >= 0) && (g < 256));
|
|
Assert((b >= 0) && (b < 256));
|
|
|
|
gr_opengl_init_color( &gr_screen.current_color, r, g, b );
|
|
}
|
|
|
|
void gr_opengl_set_color_fast(color *dst)
|
|
{
|
|
if ( dst->screen_sig != gr_screen.signature ) {
|
|
if ( dst->is_alphacolor ) {
|
|
gr_opengl_init_alphacolor( dst, dst->red, dst->green, dst->blue, dst->alpha, dst->ac_type );
|
|
} else {
|
|
gr_opengl_init_color( dst, dst->red, dst->green, dst->blue );
|
|
}
|
|
}
|
|
gr_screen.current_color = *dst;
|
|
}
|
|
|
|
void gr_opengl_print_screen(char *filename)
|
|
{
|
|
ubyte buf[1024*3];
|
|
|
|
memset(buf,0,1024*3);
|
|
char tmp[1024];
|
|
|
|
strcpy( tmp, NOX(".\\gl")); // specify a path mean files goes in root
|
|
strcat( tmp, filename );
|
|
strcat( tmp, NOX(".tga"));
|
|
|
|
CFILE *f = cfopen(tmp, "wb");
|
|
|
|
// Write the TGA header
|
|
cfwrite_ubyte( 0, f ); // IDLength;
|
|
cfwrite_ubyte( 0, f ); // ColorMapType;
|
|
cfwrite_ubyte( 2, f ); // ImageType; // 2 = 24bpp, uncompressed, 10=24bpp rle compressed
|
|
cfwrite_ushort( 0, f ); // CMapStart;
|
|
cfwrite_ushort( 0, f ); // CMapLength;
|
|
cfwrite_ubyte( 0, f ); // CMapDepth;
|
|
cfwrite_ushort( 0, f ); // XOffset;
|
|
cfwrite_ushort( 0, f ); // YOffset;
|
|
cfwrite_ushort( (ushort)gr_screen.max_w, f ); // Width;
|
|
cfwrite_ushort( (ushort)gr_screen.max_h, f ); // Height;
|
|
cfwrite_ubyte( 24, f ); //PixelDepth;
|
|
cfwrite_ubyte( 0, f ); //ImageDesc;
|
|
|
|
int h=gr_screen.max_h;
|
|
int w=gr_screen.max_w;
|
|
|
|
for (int i=0; i < h; i++)
|
|
{
|
|
glReadPixels(0,i,w,1,GL_BGR_EXT, GL_UNSIGNED_BYTE, buf);
|
|
cfwrite(buf,w*3,1,f);
|
|
}
|
|
|
|
cfclose(f);
|
|
|
|
}
|
|
|
|
int gr_opengl_supports_res_ingame(int res)
|
|
{
|
|
STUB_FUNCTION;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int gr_opengl_supports_res_interface(int res)
|
|
{
|
|
STUB_FUNCTION;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void opengl_tcache_cleanup ();
|
|
void gr_opengl_cleanup(int minimize)
|
|
{
|
|
HWND wnd=(HWND)os_get_window();
|
|
if ( !OGL_inited ) return;
|
|
|
|
|
|
gr_reset_clip();
|
|
gr_clear();
|
|
gr_flip();
|
|
|
|
|
|
if ( !OGL_inited ) return;
|
|
|
|
gr_reset_clip();
|
|
gr_clear();
|
|
gr_flip();
|
|
|
|
OGL_inited = 0;
|
|
|
|
if (rend_context)
|
|
{
|
|
if (!wglMakeCurrent(NULL, NULL))
|
|
{
|
|
MessageBox(wnd, "SHUTDOWN ERROR", "error", MB_OK);
|
|
}
|
|
if (!wglDeleteContext(rend_context))
|
|
{
|
|
MessageBox(wnd, "Unable to delete rendering context", "error", MB_OK);
|
|
}
|
|
rend_context=NULL;
|
|
}
|
|
|
|
opengl_minimize();
|
|
if (minimize)
|
|
{
|
|
if (!Cmdline_window)
|
|
ChangeDisplaySettings(NULL, 0);
|
|
}
|
|
}
|
|
|
|
void gr_opengl_fog_set(int fog_mode, int r, int g, int b, float fog_near, float fog_far)
|
|
{
|
|
// mprintf(("gr_opengl_fog_set(%d,%d,%d,%d,%f,%f)\n",fog_mode,r,g,b,fog_near,fog_far));
|
|
|
|
Assert((r >= 0) && (r < 256));
|
|
Assert((g >= 0) && (g < 256));
|
|
Assert((b >= 0) && (b < 256));
|
|
|
|
if (fog_mode == GR_FOGMODE_NONE) {
|
|
if (gr_screen.current_fog_mode != fog_mode) {
|
|
glDisable(GL_FOG);
|
|
}
|
|
gr_screen.current_fog_mode = fog_mode;
|
|
|
|
return;
|
|
}
|
|
|
|
if (gr_screen.current_fog_mode != fog_mode) {
|
|
glEnable(GL_FOG);
|
|
|
|
if (OGL_fogmode == 1) {
|
|
glFogi(GL_FOG_MODE, GL_EXP2);
|
|
}
|
|
|
|
gr_screen.current_fog_mode = fog_mode;
|
|
}
|
|
|
|
if ( (gr_screen.current_fog_color.red != r) ||
|
|
(gr_screen.current_fog_color.green != g) ||
|
|
(gr_screen.current_fog_color.blue != b) ) {
|
|
GLfloat fc[4];
|
|
|
|
gr_opengl_init_color( &gr_screen.current_fog_color, r, g, b );
|
|
|
|
fc[0] = (float)r/255.0f;
|
|
fc[1] = (float)g/255.0f;
|
|
fc[2] = (float)b/255.0f;
|
|
fc[3] = 1.0f;
|
|
|
|
glFogfv(GL_FOG_COLOR, fc);
|
|
}
|
|
|
|
if( (fog_near >= 0.0f) && (fog_far >= 0.0f) &&
|
|
((fog_near != gr_screen.fog_near) ||
|
|
(fog_far != gr_screen.fog_far)) ) {
|
|
gr_screen.fog_near = fog_near;
|
|
gr_screen.fog_far = fog_far;
|
|
|
|
if (OGL_fogmode == 1) {
|
|
glFogf(GL_FOG_DENSITY, .6f);
|
|
}
|
|
}
|
|
}
|
|
|
|
void gr_opengl_get_pixel(int x, int y, int *r, int *g, int *b)
|
|
{
|
|
// Not used.
|
|
}
|
|
|
|
void gr_opengl_set_cull(int cull)
|
|
{
|
|
if (cull) {
|
|
glEnable (GL_CULL_FACE);
|
|
glFrontFace (GL_CCW);
|
|
} else {
|
|
glDisable (GL_CULL_FACE);
|
|
}
|
|
}
|
|
|
|
void gr_opengl_filter_set(int filter)
|
|
{
|
|
}
|
|
|
|
// cross fade
|
|
void gr_opengl_cross_fade(int bmap1, int bmap2, int x1, int y1, int x2, int y2, float pct)
|
|
{
|
|
if ( pct <= 50 ) {
|
|
gr_set_bitmap(bmap1);
|
|
gr_bitmap(x1, y1);
|
|
} else {
|
|
gr_set_bitmap(bmap2);
|
|
gr_bitmap(x2, y2);
|
|
}
|
|
}
|
|
|
|
|
|
typedef struct tcache_slot_opengl {
|
|
GLuint texture_handle;
|
|
float u_scale, v_scale;
|
|
int bitmap_id;
|
|
int size;
|
|
char used_this_frame;
|
|
int time_created;
|
|
ushort w,h;
|
|
|
|
// sections
|
|
tcache_slot_opengl *data_sections[MAX_BMAP_SECTIONS_X][MAX_BMAP_SECTIONS_Y];
|
|
tcache_slot_opengl *parent;
|
|
} tcache_slot_opengl;
|
|
|
|
static void *Texture_sections = NULL;
|
|
static tcache_slot_opengl *Textures = NULL;
|
|
|
|
int GL_texture_sections = 0;
|
|
int GL_texture_ram = 0;
|
|
int GL_frame_count = 0;
|
|
int GL_min_texture_width = 0;
|
|
int GL_max_texture_width = 0;
|
|
int GL_min_texture_height = 0;
|
|
int GL_max_texture_height = 0;
|
|
int GL_square_textures = 0;
|
|
int GL_textures_in = 0;
|
|
int GL_textures_in_frame = 0;
|
|
int GL_last_bitmap_id = -1;
|
|
int GL_last_detail = -1;
|
|
int GL_last_bitmap_type = -1;
|
|
int GL_last_section_x = -1;
|
|
int GL_last_section_y = -1;
|
|
|
|
extern int vram_full;
|
|
|
|
void opengl_tcache_init (int use_sections)
|
|
{
|
|
int i, idx, s_idx;
|
|
|
|
// DDOI - FIXME skipped a lot of stuff here
|
|
GL_should_preload = 0;
|
|
|
|
//uint tmp_pl = os_config_read_uint( NULL, NOX("D3DPreloadTextures"), 255 );
|
|
uint tmp_pl = 1;
|
|
|
|
if ( tmp_pl == 0 ) {
|
|
GL_should_preload = 0;
|
|
} else if ( tmp_pl == 1 ) {
|
|
GL_should_preload = 1;
|
|
} else {
|
|
GL_should_preload = 1;
|
|
}
|
|
|
|
GL_min_texture_width = 16;
|
|
GL_min_texture_height = 16;
|
|
GL_max_texture_width = 256;
|
|
GL_max_texture_height = 256;
|
|
|
|
GL_square_textures = 1;
|
|
|
|
Textures = (tcache_slot_opengl *)malloc(MAX_BITMAPS*sizeof(tcache_slot_opengl));
|
|
if ( !Textures ) {
|
|
exit(1);
|
|
}
|
|
|
|
if(use_sections){
|
|
Texture_sections = (tcache_slot_opengl*)malloc(MAX_BITMAPS * MAX_BMAP_SECTIONS_X * MAX_BMAP_SECTIONS_Y * sizeof(tcache_slot_opengl));
|
|
if(!Texture_sections){
|
|
exit(1);
|
|
}
|
|
memset(Texture_sections, 0, MAX_BITMAPS * MAX_BMAP_SECTIONS_X * MAX_BMAP_SECTIONS_Y * sizeof(tcache_slot_opengl));
|
|
}
|
|
|
|
// Init the texture structures
|
|
int section_count = 0;
|
|
for( i=0; i<MAX_BITMAPS; i++ ) {
|
|
/*
|
|
Textures[i].vram_texture = NULL;
|
|
Textures[i].vram_texture_surface = NULL;
|
|
*/
|
|
Textures[i].texture_handle = 0;
|
|
|
|
Textures[i].bitmap_id = -1;
|
|
Textures[i].size = 0;
|
|
Textures[i].used_this_frame = 0;
|
|
|
|
Textures[i].parent = NULL;
|
|
|
|
// allocate sections
|
|
if(use_sections){
|
|
for(idx=0; idx<MAX_BMAP_SECTIONS_X; idx++){
|
|
for(s_idx=0; s_idx<MAX_BMAP_SECTIONS_Y; s_idx++){
|
|
Textures[i].data_sections[idx][s_idx] = &((tcache_slot_opengl*)Texture_sections)[section_count++];
|
|
Textures[i].data_sections[idx][s_idx]->parent = &Textures[i];
|
|
/*
|
|
Textures[i].data_sections[idx][s_idx]->vram_texture = NULL;
|
|
Textures[i].data_sections[idx][s_idx]->vram_texture_surface = NULL;
|
|
*/
|
|
Textures[i].data_sections[idx][s_idx]->texture_handle = 0;
|
|
Textures[i].data_sections[idx][s_idx]->bitmap_id = -1;
|
|
Textures[i].data_sections[idx][s_idx]->size = 0;
|
|
Textures[i].data_sections[idx][s_idx]->used_this_frame = 0;
|
|
}
|
|
}
|
|
} else {
|
|
for(idx=0; idx<MAX_BMAP_SECTIONS_X; idx++){
|
|
for(s_idx=0; s_idx<MAX_BMAP_SECTIONS_Y; s_idx++){
|
|
Textures[i].data_sections[idx][s_idx] = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
GL_texture_sections = use_sections;
|
|
|
|
//GL_last_detail = Detail.hardware_textures;
|
|
GL_last_bitmap_id = -1;
|
|
GL_last_bitmap_type = -1;
|
|
|
|
GL_last_section_x = -1;
|
|
GL_last_section_y = -1;
|
|
|
|
GL_textures_in = 0;
|
|
GL_textures_in_frame = 0;
|
|
}
|
|
|
|
int opengl_free_texture (tcache_slot_opengl *t);
|
|
|
|
void opengl_free_texture_with_handle(int handle)
|
|
{
|
|
for(int i=0; i<MAX_BITMAPS; i++ ) {
|
|
if (Textures[i].bitmap_id == handle) {
|
|
Textures[i].used_this_frame = 0; // this bmp doesn't even exist any longer...
|
|
opengl_free_texture ( &Textures[i] );
|
|
}
|
|
}
|
|
}
|
|
|
|
void opengl_tcache_flush ()
|
|
{
|
|
int i;
|
|
|
|
for( i=0; i<MAX_BITMAPS; i++ ) {
|
|
opengl_free_texture ( &Textures[i] );
|
|
}
|
|
if (GL_textures_in != 0) {
|
|
mprintf(( "WARNING: VRAM is at %d instead of zero after flushing!\n", GL_textures_in ));
|
|
GL_textures_in = 0;
|
|
}
|
|
|
|
GL_last_bitmap_id = -1;
|
|
GL_last_section_x = -1;
|
|
GL_last_section_y = -1;
|
|
}
|
|
|
|
void opengl_tcache_cleanup ()
|
|
{
|
|
opengl_tcache_flush ();
|
|
|
|
GL_textures_in = 0;
|
|
GL_textures_in_frame = 0;
|
|
|
|
if ( Textures ) {
|
|
free(Textures);
|
|
Textures = NULL;
|
|
}
|
|
|
|
if( Texture_sections != NULL ){
|
|
free(Texture_sections);
|
|
Texture_sections = NULL;
|
|
}
|
|
}
|
|
|
|
void opengl_tcache_frame ()
|
|
{
|
|
int idx, s_idx;
|
|
|
|
GL_last_bitmap_id = -1;
|
|
GL_textures_in_frame = 0;
|
|
|
|
GL_frame_count++;
|
|
|
|
int i;
|
|
for( i=0; i<MAX_BITMAPS; i++ ) {
|
|
Textures[i].used_this_frame = 0;
|
|
|
|
// data sections
|
|
if(Textures[i].data_sections[0][0] != NULL){
|
|
Assert(GL_texture_sections);
|
|
if(GL_texture_sections){
|
|
for(idx=0; idx<MAX_BMAP_SECTIONS_X; idx++){
|
|
for(s_idx=0; s_idx<MAX_BMAP_SECTIONS_Y; s_idx++){
|
|
if(Textures[i].data_sections[idx][s_idx] != NULL){
|
|
Textures[i].data_sections[idx][s_idx]->used_this_frame = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( vram_full ) {
|
|
opengl_tcache_flush();
|
|
vram_full = 0;
|
|
}
|
|
}
|
|
|
|
int opengl_free_texture ( tcache_slot_opengl *t )
|
|
{
|
|
int idx, s_idx;
|
|
|
|
|
|
// Bitmap changed!!
|
|
if ( t->bitmap_id > -1 ) {
|
|
// if I, or any of my children have been used this frame, bail
|
|
if(t->used_this_frame){
|
|
return 0;
|
|
}
|
|
for(idx=0; idx<MAX_BMAP_SECTIONS_X; idx++){
|
|
for(s_idx=0; s_idx<MAX_BMAP_SECTIONS_Y; s_idx++){
|
|
if((t->data_sections[idx][s_idx] != NULL) && (t->data_sections[idx][s_idx]->used_this_frame)){
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// ok, now we know its legal to free everything safely
|
|
glDeleteTextures (1, &t->texture_handle);
|
|
t->texture_handle = 0;
|
|
|
|
if ( GL_last_bitmap_id == t->bitmap_id ) {
|
|
GL_last_bitmap_id = -1;
|
|
}
|
|
|
|
// if this guy has children, free them too, since the children
|
|
// actually make up his size
|
|
for(idx=0; idx<MAX_BMAP_SECTIONS_X; idx++){
|
|
for(s_idx=0; s_idx<MAX_BMAP_SECTIONS_Y; s_idx++){
|
|
if(t->data_sections[idx][s_idx] != NULL){
|
|
opengl_free_texture(t->data_sections[idx][s_idx]);
|
|
}
|
|
}
|
|
}
|
|
|
|
t->bitmap_id = -1;
|
|
t->used_this_frame = 0;
|
|
GL_textures_in -= t->size;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void opengl_tcache_get_adjusted_texture_size(int w_in, int h_in, int *w_out, int *h_out)
|
|
{
|
|
int tex_w, tex_h;
|
|
|
|
// bogus
|
|
if((w_out == NULL) || (h_out == NULL)){
|
|
return;
|
|
}
|
|
|
|
// starting size
|
|
tex_w = w_in;
|
|
tex_h = h_in;
|
|
|
|
if (1) {
|
|
int i;
|
|
for (i=0; i<16; i++ ) {
|
|
if ( (tex_w > (1<<i)) && (tex_w <= (1<<(i+1))) ) {
|
|
tex_w = 1 << (i+1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i=0; i<16; i++ ) {
|
|
if ( (tex_h > (1<<i)) && (tex_h <= (1<<(i+1))) ) {
|
|
tex_h = 1 << (i+1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( tex_w < GL_min_texture_width ) {
|
|
tex_w = GL_min_texture_width;
|
|
} else if ( tex_w > GL_max_texture_width ) {
|
|
tex_w = GL_max_texture_width;
|
|
}
|
|
|
|
if ( tex_h < GL_min_texture_height ) {
|
|
tex_h = GL_min_texture_height;
|
|
} else if ( tex_h > GL_max_texture_height ) {
|
|
tex_h = GL_max_texture_height;
|
|
}
|
|
|
|
if ( GL_square_textures ) {
|
|
int new_size;
|
|
// Make the both be equal to larger of the two
|
|
new_size = max(tex_w, tex_h);
|
|
tex_w = new_size;
|
|
tex_h = new_size;
|
|
}
|
|
|
|
// store the outgoing size
|
|
*w_out = tex_w;
|
|
*h_out = tex_h;
|
|
}
|
|
|
|
// data == start of bitmap data
|
|
// sx == x offset into bitmap
|
|
// sy == y offset into bitmap
|
|
// src_w == absolute width of section on source bitmap
|
|
// src_h == absolute height of section on source bitmap
|
|
// bmap_w == width of source bitmap
|
|
// bmap_h == height of source bitmap
|
|
// tex_w == width of final texture
|
|
// tex_h == height of final texture
|
|
int opengl_create_texture_sub(int bitmap_type, int texture_handle, ushort *data, int sx, int sy, int src_w, int src_h, int bmap_w, int bmap_h, int tex_w, int tex_h, tcache_slot_opengl *t, int reload, int fail_on_full)
|
|
{
|
|
int ret_val = 1;
|
|
|
|
// bogus
|
|
if(t == NULL){
|
|
return 0;
|
|
}
|
|
|
|
if ( t->used_this_frame ) {
|
|
mprintf(( "ARGHH!!! Texture already used this frame! Cannot free it!\n" ));
|
|
return 0;
|
|
}
|
|
if ( !reload ) {
|
|
// gah
|
|
if(!opengl_free_texture(t)){
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// get final texture size
|
|
opengl_tcache_get_adjusted_texture_size(tex_w, tex_h, &tex_w, &tex_h);
|
|
|
|
if ( (tex_w < 1) || (tex_h < 1) ) {
|
|
mprintf(("Bitmap is to small at %dx%d.\n", tex_w, tex_h ));
|
|
return 0;
|
|
}
|
|
|
|
if ( bitmap_type == TCACHE_TYPE_AABITMAP ) {
|
|
t->u_scale = (float)bmap_w / (float)tex_w;
|
|
t->v_scale = (float)bmap_h / (float)tex_h;
|
|
} else if(bitmap_type == TCACHE_TYPE_BITMAP_SECTION){
|
|
t->u_scale = (float)src_w / (float)tex_w;
|
|
t->v_scale = (float)src_h / (float)tex_h;
|
|
} else {
|
|
t->u_scale = 1.0f;
|
|
t->v_scale = 1.0f;
|
|
}
|
|
|
|
if (!reload) {
|
|
glGenTextures (1, &t->texture_handle);
|
|
}
|
|
|
|
if (t->texture_handle == 0) {
|
|
nprintf(("Error", "!!DEBUG!! t->texture_handle == 0"));
|
|
return 0;
|
|
}
|
|
|
|
glBindTexture (GL_TEXTURE_2D, t->texture_handle);
|
|
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
|
|
//compression takes precedence
|
|
if (bitmap_type & TCACHE_TYPE_COMPRESSED)
|
|
{
|
|
GLenum ctype(0);
|
|
switch (bm_is_compressed(texture_handle))
|
|
{
|
|
case 1:
|
|
ctype=GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
|
|
break;
|
|
|
|
case 2:
|
|
ctype=GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
|
|
break;
|
|
|
|
case 3:
|
|
ctype=GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
|
|
break;
|
|
|
|
default:
|
|
Assert(0);
|
|
}
|
|
glCompressedTexImage2D(GL_TEXTURE_2D, 0, ctype, tex_w, tex_h,0, bm_get_size(texture_handle), (ubyte*)data);
|
|
}
|
|
else
|
|
{
|
|
|
|
switch (bitmap_type) {
|
|
|
|
case TCACHE_TYPE_AABITMAP:
|
|
{
|
|
int i,j;
|
|
ubyte *bmp_data = ((ubyte*)data);
|
|
ubyte *texmem = (ubyte *) malloc (tex_w*tex_h*2);
|
|
ubyte *texmemp = texmem;
|
|
ubyte xlat[256];
|
|
|
|
for (i=0; i<16; i++) {
|
|
xlat[i] = (ubyte)Gr_gamma_lookup[(i*255)/15];
|
|
}
|
|
xlat[15] = xlat[1];
|
|
for ( ; i<256; i++ ) {
|
|
xlat[i] = xlat[0];
|
|
}
|
|
|
|
for (i=0;i<tex_h;i++)
|
|
{
|
|
for (j=0;j<tex_w;j++)
|
|
{
|
|
if (i < bmap_h && j < bmap_w) {
|
|
*texmemp++ = 0xff;
|
|
*texmemp++ = xlat[bmp_data[i*bmap_w+j]];
|
|
} else {
|
|
*texmemp++ = 0;
|
|
*texmemp++ = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, tex_w, tex_h, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, texmem);
|
|
|
|
free (texmem);
|
|
}
|
|
break;
|
|
|
|
|
|
case TCACHE_TYPE_BITMAP_SECTION:
|
|
{
|
|
int i,j;
|
|
ubyte *bmp_data = ((ubyte*)data);
|
|
ubyte *texmem = (ubyte *) malloc (tex_w*tex_h*2);
|
|
ubyte *texmemp = texmem;
|
|
|
|
for (i=0;i<tex_h;i++)
|
|
{
|
|
for (j=0;j<tex_w;j++)
|
|
{
|
|
if (i < src_h && j < src_w) {
|
|
*texmemp++ = bmp_data[((i+sy)*bmap_w+(j+sx))*2+0];
|
|
*texmemp++ = bmp_data[((i+sy)*bmap_w+(j+sx))*2+1];
|
|
} else {
|
|
*texmemp++ = 0;
|
|
*texmemp++ = 0;
|
|
}
|
|
}
|
|
}
|
|
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, tex_w, tex_h, 0, GL_BGRA,
|
|
GL_UNSIGNED_SHORT_1_5_5_5_REV, texmem);
|
|
|
|
free(texmem);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
int i,j;
|
|
ubyte *bmp_data = ((ubyte*)data);
|
|
ubyte *texmem = (ubyte *) malloc (tex_w*tex_h*2);
|
|
ubyte *texmemp = texmem;
|
|
|
|
fix u, utmp, v, du, dv;
|
|
|
|
u = v = 0;
|
|
|
|
du = ( (bmap_w-1)*F1_0 ) / tex_w;
|
|
dv = ( (bmap_h-1)*F1_0 ) / tex_h;
|
|
|
|
for (j=0;j<tex_h;j++)
|
|
{
|
|
utmp = u;
|
|
for (i=0;i<tex_w;i++)
|
|
{
|
|
*texmemp++ = bmp_data[(f2i(v)*bmap_w+f2i(utmp))*2+0];
|
|
*texmemp++ = bmp_data[(f2i(v)*bmap_w+f2i(utmp))*2+1];
|
|
utmp += du;
|
|
}
|
|
v += dv;
|
|
}
|
|
|
|
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, tex_w, tex_h, 0, GL_BGRA,
|
|
GL_UNSIGNED_SHORT_1_5_5_5_REV, texmem);
|
|
|
|
free(texmem);
|
|
break;
|
|
}
|
|
}//end switch
|
|
}//end else
|
|
|
|
t->bitmap_id = texture_handle;
|
|
t->time_created = GL_frame_count;
|
|
t->used_this_frame = 0;
|
|
if (bitmap_type & TCACHE_TYPE_COMPRESSED) t->size=bm_get_size(texture_handle);
|
|
else t->size = tex_w * tex_h * 2;
|
|
t->w = (ushort)tex_w;
|
|
t->h = (ushort)tex_h;
|
|
GL_textures_in_frame += t->size;
|
|
if (!reload) {
|
|
GL_textures_in += t->size;
|
|
}
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
int opengl_create_texture (int bitmap_handle, int bitmap_type, tcache_slot_opengl *tslot, int fail_on_full)
|
|
{
|
|
ubyte flags;
|
|
bitmap *bmp;
|
|
int final_w, final_h;
|
|
ubyte bpp = 16;
|
|
int reload = 0;
|
|
|
|
// setup texture/bitmap flags
|
|
flags = 0;
|
|
switch(bitmap_type){
|
|
case TCACHE_TYPE_AABITMAP:
|
|
flags |= BMP_AABITMAP;
|
|
bpp = 8;
|
|
break;
|
|
case TCACHE_TYPE_NORMAL:
|
|
flags |= BMP_TEX_OTHER;
|
|
case TCACHE_TYPE_XPARENT:
|
|
flags |= BMP_TEX_XPARENT;
|
|
break;
|
|
case TCACHE_TYPE_NONDARKENING:
|
|
Int3();
|
|
flags |= BMP_TEX_NONDARK;
|
|
break;
|
|
}
|
|
|
|
switch (bm_is_compressed(bitmap_handle))
|
|
{
|
|
case 1: //dxt1
|
|
bpp=24;
|
|
flags |=BMP_TEX_DXT1;
|
|
bitmap_type|=TCACHE_TYPE_COMPRESSED;
|
|
break;
|
|
|
|
case 2: //dxt3
|
|
bpp=32;
|
|
flags |=BMP_TEX_DXT3;
|
|
bitmap_type|=TCACHE_TYPE_COMPRESSED;
|
|
break;
|
|
|
|
case 3: //dxt5
|
|
bpp=32;
|
|
flags |=BMP_TEX_DXT5;
|
|
bitmap_type|=TCACHE_TYPE_COMPRESSED;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// lock the bitmap into the proper format
|
|
bmp = bm_lock(bitmap_handle, bpp, flags);
|
|
if ( bmp == NULL ) {
|
|
mprintf(("Couldn't lock bitmap %d.\n", bitmap_handle ));
|
|
return 0;
|
|
}
|
|
|
|
int max_w = bmp->w;
|
|
int max_h = bmp->h;
|
|
|
|
|
|
// DDOI - TODO
|
|
if ( bitmap_type != TCACHE_TYPE_AABITMAP ) {
|
|
// max_w /= D3D_texture_divider;
|
|
// max_h /= D3D_texture_divider;
|
|
|
|
// Detail.debris_culling goes from 0 to 4.
|
|
max_w /= (16 >> Detail.hardware_textures);
|
|
max_h /= (16 >> Detail.hardware_textures);
|
|
}
|
|
|
|
|
|
// get final texture size as it will be allocated as a DD surface
|
|
opengl_tcache_get_adjusted_texture_size(max_w, max_h, &final_w, &final_h);
|
|
|
|
// if this tcache slot has no bitmap
|
|
if ( tslot->bitmap_id < 0) {
|
|
reload = 0;
|
|
}
|
|
// different bitmap altogether - determine if the new one can use the old one's slot
|
|
else if (tslot->bitmap_id != bitmap_handle) {
|
|
if((final_w == tslot->w) && (final_h == tslot->h)){
|
|
reload = 1;
|
|
//ml_printf("Reloading texture %d\n", bitmap_handle);
|
|
} else {
|
|
reload = 0;
|
|
}
|
|
}
|
|
|
|
// call the helper
|
|
int ret_val = opengl_create_texture_sub(bitmap_type, bitmap_handle, (ushort*)bmp->data, 0, 0, bmp->w, bmp->h, bmp->w, bmp->h, max_w, max_h, tslot, reload, fail_on_full);
|
|
|
|
// unlock the bitmap
|
|
bm_unlock(bitmap_handle);
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
int opengl_create_texture_sectioned(int bitmap_handle, int bitmap_type, tcache_slot_opengl *tslot, int sx, int sy, int fail_on_full)
|
|
{
|
|
ubyte flags;
|
|
bitmap *bmp;
|
|
int final_w, final_h;
|
|
int section_x, section_y;
|
|
int reload = 0;
|
|
|
|
// setup texture/bitmap flags
|
|
Assert(bitmap_type == TCACHE_TYPE_BITMAP_SECTION);
|
|
if(bitmap_type != TCACHE_TYPE_BITMAP_SECTION){
|
|
bitmap_type = TCACHE_TYPE_BITMAP_SECTION;
|
|
}
|
|
flags = BMP_TEX_XPARENT;
|
|
|
|
// lock the bitmap in the proper format
|
|
bmp = bm_lock(bitmap_handle, 16, flags);
|
|
if ( bmp == NULL ) {
|
|
mprintf(("Couldn't lock bitmap %d.\n", bitmap_handle ));
|
|
return 0;
|
|
}
|
|
// determine the width and height of this section
|
|
bm_get_section_size(bitmap_handle, sx, sy, §ion_x, §ion_y);
|
|
|
|
// get final texture size as it will be allocated as an opengl texture
|
|
opengl_tcache_get_adjusted_texture_size(section_x, section_y, &final_w, &final_h);
|
|
|
|
// if this tcache slot has no bitmap
|
|
if ( tslot->bitmap_id < 0) {
|
|
reload = 0;
|
|
}
|
|
// different bitmap altogether - determine if the new one can use the old one's slot
|
|
else if (tslot->bitmap_id != bitmap_handle) {
|
|
if((final_w == tslot->w) && (final_h == tslot->h)){
|
|
reload = 1;
|
|
} else {
|
|
reload = 0;
|
|
}
|
|
}
|
|
|
|
// call the helper
|
|
int ret_val = opengl_create_texture_sub(bitmap_type, bitmap_handle, (ushort*)bmp->data, bmp->sections.sx[sx], bmp->sections.sy[sy], section_x, section_y, bmp->w, bmp->h, section_x, section_y, tslot, reload, fail_on_full);
|
|
|
|
// unlock the bitmap
|
|
bm_unlock(bitmap_handle);
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
|
|
//extern int bm_get_cache_slot( int bitmap_id, int separate_ani_frames );
|
|
int gr_opengl_tcache_set(int bitmap_id, int bitmap_type, float *u_scale, float *v_scale, int fail_on_full = 0, int sx = -1, int sy = -1, int force = 0)
|
|
{
|
|
bitmap *bmp = NULL;
|
|
|
|
int idx, s_idx;
|
|
int ret_val = 1;
|
|
|
|
if (bitmap_id < 0)
|
|
{
|
|
GL_last_bitmap_id = -1;
|
|
return 0;
|
|
}
|
|
|
|
if ( GL_last_detail != Detail.hardware_textures ) {
|
|
GL_last_detail = Detail.hardware_textures;
|
|
opengl_tcache_flush();
|
|
}
|
|
|
|
if (vram_full) {
|
|
return 0;
|
|
}
|
|
|
|
int n = bm_get_cache_slot (bitmap_id, 1);
|
|
tcache_slot_opengl *t = &Textures[n];
|
|
|
|
if ( (GL_last_bitmap_id == bitmap_id) && (GL_last_bitmap_type==bitmap_type) && (t->bitmap_id == bitmap_id) && (GL_last_section_x == sx) && (GL_last_section_y == sy)) {
|
|
t->used_this_frame++;
|
|
|
|
// mark all children as used
|
|
if(GL_texture_sections){
|
|
for(idx=0; idx<MAX_BMAP_SECTIONS_X; idx++){
|
|
for(s_idx=0; s_idx<MAX_BMAP_SECTIONS_Y; s_idx++){
|
|
if(t->data_sections[idx][s_idx] != NULL){
|
|
t->data_sections[idx][s_idx]->used_this_frame++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*u_scale = t->u_scale;
|
|
*v_scale = t->v_scale;
|
|
return 1;
|
|
}
|
|
|
|
if (bitmap_type == TCACHE_TYPE_BITMAP_SECTION){
|
|
Assert((sx >= 0) && (sy >= 0) && (sx < MAX_BMAP_SECTIONS_X) && (sy < MAX_BMAP_SECTIONS_Y));
|
|
if(!((sx >= 0) && (sy >= 0) && (sx < MAX_BMAP_SECTIONS_X) && (sy < MAX_BMAP_SECTIONS_Y))){
|
|
return 0;
|
|
}
|
|
|
|
ret_val = 1;
|
|
|
|
// if the texture sections haven't been created yet
|
|
if((t->bitmap_id < 0) || (t->bitmap_id != bitmap_id)){
|
|
|
|
// lock the bitmap in the proper format
|
|
bmp = bm_lock(bitmap_id, 16, BMP_TEX_XPARENT);
|
|
bm_unlock(bitmap_id);
|
|
|
|
// now lets do something for each texture
|
|
|
|
for(idx=0; idx<bmp->sections.num_x; idx++){
|
|
for(s_idx=0; s_idx<bmp->sections.num_y; s_idx++){
|
|
// hmm. i'd rather we didn't have to do it this way...
|
|
if(!opengl_create_texture_sectioned(bitmap_id, bitmap_type, t->data_sections[idx][s_idx], idx, s_idx, fail_on_full)){
|
|
ret_val = 0;
|
|
}
|
|
|
|
// not used this frame
|
|
t->data_sections[idx][s_idx]->used_this_frame = 0;
|
|
}
|
|
}
|
|
|
|
// zero out pretty much everything in the parent struct since he's just the root
|
|
t->bitmap_id = bitmap_id;
|
|
t->texture_handle = 0;
|
|
t->time_created = t->data_sections[sx][sy]->time_created;
|
|
t->used_this_frame = 0;
|
|
/*
|
|
t->vram_texture = NULL;
|
|
t->vram_texture_surface = NULL
|
|
*/
|
|
}
|
|
|
|
// argh. we failed to upload. free anything we can
|
|
if(!ret_val){
|
|
opengl_free_texture(t);
|
|
}
|
|
// swap in the texture we want
|
|
else {
|
|
t = t->data_sections[sx][sy];
|
|
}
|
|
}
|
|
|
|
// all other "normal" textures
|
|
else if((bitmap_id < 0) || (bitmap_id != t->bitmap_id)){
|
|
ret_val = opengl_create_texture( bitmap_id, bitmap_type, t, fail_on_full );
|
|
}
|
|
|
|
// everything went ok
|
|
if(ret_val && (t->texture_handle) && !vram_full){
|
|
*u_scale = t->u_scale;
|
|
*v_scale = t->v_scale;
|
|
|
|
glBindTexture (GL_TEXTURE_2D, t->texture_handle );
|
|
|
|
GL_last_bitmap_id = t->bitmap_id;
|
|
GL_last_bitmap_type = bitmap_type;
|
|
GL_last_section_x = sx;
|
|
GL_last_section_y = sy;
|
|
t->used_this_frame++;
|
|
}
|
|
// gah
|
|
else {
|
|
glBindTexture (GL_TEXTURE_2D, 0); // test - DDOI
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void gr_opengl_set_clear_color(int r, int g, int b)
|
|
{
|
|
gr_init_color (&gr_screen.current_clear_color, r, g, b);
|
|
}
|
|
|
|
void gr_opengl_flash(int r, int g, int b)
|
|
{
|
|
CAP(r,0,255);
|
|
CAP(g,0,255);
|
|
CAP(b,0,255);
|
|
|
|
if ( r || g || b ) {
|
|
gr_opengl_set_state( TEXTURE_SOURCE_NONE, ALPHA_BLEND_ALPHA_ADDITIVE, ZBUFFER_TYPE_NONE );
|
|
|
|
float x1, x2, y1, y2;
|
|
x1 = i2fl(gr_screen.clip_left+gr_screen.offset_x);
|
|
y1 = i2fl(gr_screen.clip_top+gr_screen.offset_y);
|
|
x2 = i2fl(gr_screen.clip_right+gr_screen.offset_x);
|
|
y2 = i2fl(gr_screen.clip_bottom+gr_screen.offset_y);
|
|
|
|
glColor4ub((ubyte)r, (ubyte)g, (ubyte)b, 255);
|
|
glBegin (GL_QUADS);
|
|
glVertex3f (x1, y2, -0.99f);
|
|
|
|
glVertex3f (x2, y2, -0.99f);
|
|
|
|
glVertex3f (x2, y1, -0.99f);
|
|
|
|
glVertex3f (x1, y1, -0.99f);
|
|
glEnd ();
|
|
}
|
|
}
|
|
|
|
int gr_opengl_zbuffer_get()
|
|
{
|
|
if ( !gr_global_zbuffering ) {
|
|
return GR_ZBUFF_NONE;
|
|
}
|
|
return gr_zbuffering_mode;
|
|
}
|
|
|
|
int gr_opengl_zbuffer_set(int mode)
|
|
{
|
|
int tmp = gr_zbuffering_mode;
|
|
|
|
gr_zbuffering_mode = mode;
|
|
|
|
if (gr_zbuffering_mode == GR_ZBUFF_NONE ) {
|
|
gr_zbuffering = 0;
|
|
} else {
|
|
gr_zbuffering = 1;
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
void gr_opengl_zbuffer_clear(int mode)
|
|
{
|
|
if (mode) {
|
|
gr_zbuffering = 1;
|
|
gr_zbuffering_mode = GR_ZBUFF_FULL;
|
|
gr_global_zbuffering = 1;
|
|
|
|
gr_opengl_set_state( TEXTURE_SOURCE_NONE, ALPHA_BLEND_NONE, ZBUFFER_TYPE_FULL );
|
|
glClear ( GL_DEPTH_BUFFER_BIT );
|
|
} else {
|
|
gr_zbuffering = 0;
|
|
gr_zbuffering_mode = GR_ZBUFF_NONE;
|
|
gr_global_zbuffering = 0;
|
|
}
|
|
}
|
|
|
|
void gr_opengl_set_gamma(float gamma)
|
|
{
|
|
Gr_gamma = gamma;
|
|
Gr_gamma_int = int (Gr_gamma*10);
|
|
|
|
// Create the Gamma lookup table
|
|
int i;
|
|
for (i=0;i<256; i++) {
|
|
int v = fl2i(pow(i2fl(i)/255.0f, 1.0f/Gr_gamma)*255.0f);
|
|
if ( v > 255 ) {
|
|
v = 255;
|
|
} else if ( v < 0 ) {
|
|
v = 0;
|
|
}
|
|
Gr_gamma_lookup[i] = v;
|
|
}
|
|
|
|
// Flush any existing textures
|
|
opengl_tcache_flush();
|
|
}
|
|
|
|
void gr_opengl_fade_in(int instantaneous)
|
|
{
|
|
// Empty - DDOI
|
|
}
|
|
|
|
void gr_opengl_fade_out(int instantaneous)
|
|
{
|
|
// Empty - DDOI
|
|
}
|
|
|
|
void gr_opengl_get_region(int front, int w, int h, ubyte *data)
|
|
{
|
|
if (front) {
|
|
glReadBuffer(GL_FRONT);
|
|
} else {
|
|
glReadBuffer(GL_BACK);
|
|
}
|
|
|
|
gr_opengl_set_state(TEXTURE_SOURCE_NO_FILTERING, ALPHA_BLEND_NONE, ZBUFFER_TYPE_NONE);
|
|
|
|
glPixelStorei(GL_PACK_ROW_LENGTH, gr_screen.max_w);
|
|
|
|
if (gr_screen.bits_per_pixel == 16) {
|
|
glReadPixels(0, gr_screen.max_h-h-1, w, h, GL_BGRA_EXT, GL_UNSIGNED_SHORT, data);
|
|
} else if (gr_screen.bits_per_pixel == 32) {
|
|
glReadPixels(0, gr_screen.max_h-h-1, w, h, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
|
}
|
|
|
|
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
|
|
}
|
|
|
|
#define MAX_SAVE_SIZE (24*24)
|
|
static ubyte Gr_opengl_mouse_saved_data[MAX_SAVE_SIZE*2];
|
|
|
|
#define CLAMP(x,r1,r2) do { if ( (x) < (r1) ) (x) = (r1); else if ((x) > (r2)) (x) = (r2); } while(0)
|
|
|
|
void gr_opengl_save_mouse_area(int x, int y, int w, int h)
|
|
{
|
|
/* Gr_opengl_mouse_saved_x1 = x;
|
|
Gr_opengl_mouse_saved_y1 = y;
|
|
Gr_opengl_mouse_saved_x2 = x+w-1;
|
|
Gr_opengl_mouse_saved_y2 = y+h-1;
|
|
|
|
CLAMP(Gr_opengl_mouse_saved_x1, gr_screen.clip_left, gr_screen.clip_right );
|
|
CLAMP(Gr_opengl_mouse_saved_x2, gr_screen.clip_left, gr_screen.clip_right );
|
|
CLAMP(Gr_opengl_mouse_saved_y1, gr_screen.clip_top, gr_screen.clip_bottom );
|
|
CLAMP(Gr_opengl_mouse_saved_y2, gr_screen.clip_top, gr_screen.clip_bottom );
|
|
|
|
Gr_opengl_mouse_saved_w = Gr_opengl_mouse_saved_x2 - Gr_opengl_mouse_saved_x1 + 1;
|
|
Gr_opengl_mouse_saved_h = Gr_opengl_mouse_saved_y2 - Gr_opengl_mouse_saved_y1 + 1;
|
|
|
|
if ( Gr_opengl_mouse_saved_w < 1 ) return;
|
|
if ( Gr_opengl_mouse_saved_h < 1 ) return;
|
|
|
|
Assert( (Gr_opengl_mouse_saved_w*Gr_opengl_mouse_saved_h) <= MAX_SAVE_SIZE );
|
|
|
|
gr_opengl_set_state(TEXTURE_SOURCE_NO_FILTERING, ALPHA_BLEND_NONE, ZBUFFER_TYPE_NONE);
|
|
|
|
glReadBuffer(GL_BACK);
|
|
glReadPixels(x, gr_screen.max_h-y-1-h, w, h, GL_BGRA_EXT, GL_UNSIGNED_SHORT, Gr_opengl_mouse_saved_data);
|
|
|
|
Gr_opengl_mouse_saved = 1;*/
|
|
}
|
|
|
|
ubyte *opengl_screen=NULL;
|
|
GLenum screen_tex_handle;
|
|
|
|
int gr_opengl_save_screen()
|
|
{
|
|
GLenum fmt=0;
|
|
gr_reset_clip();
|
|
|
|
if ( opengl_screen ) {
|
|
mprintf(( "Screen already saved!\n" ));
|
|
return -1;
|
|
}
|
|
|
|
if (gr_screen.bits_per_pixel==32)
|
|
{
|
|
fmt=GL_UNSIGNED_BYTE;
|
|
opengl_screen = (ubyte*)malloc( gr_screen.max_w * gr_screen.max_h * 4);
|
|
}
|
|
else
|
|
{
|
|
fmt=GL_UNSIGNED_SHORT_1_5_5_5_REV;
|
|
opengl_screen = (ubyte*)malloc( gr_screen.max_w * gr_screen.max_h * 2);
|
|
}
|
|
|
|
if (!opengl_screen) {
|
|
mprintf(( "Couldn't get memory for saved screen!\n" ));
|
|
return -1;
|
|
}
|
|
|
|
|
|
glReadBuffer(GL_FRONT);
|
|
glReadPixels(0,0,gr_screen.max_w-1,gr_screen.max_h-1,GL_RGBA, fmt, opengl_screen);
|
|
|
|
glGenTextures(1, &screen_tex_handle);
|
|
glBindTexture(GL_TEXTURE_2D, screen_tex_handle);
|
|
gr_opengl_set_state(TEXTURE_SOURCE_NO_FILTERING, ALPHA_BLEND_NONE, ZBUFFER_TYPE_NONE);
|
|
|
|
|
|
int wtemp,htemp;
|
|
|
|
htemp=(int)pow(2,ceil(log10(gr_screen.max_h)/log10(2)));
|
|
wtemp=(int)pow(2,ceil(log10(gr_screen.max_w)/log10(2)));
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, 3,wtemp,htemp,0,GL_RGBA, fmt, NULL);
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0,0,0,gr_screen.max_w,gr_screen.max_h,GL_RGBA,fmt, opengl_screen);
|
|
|
|
|
|
return 1;
|
|
}
|
|
|
|
void gr_opengl_restore_screen(int id)
|
|
{
|
|
gr_reset_clip();
|
|
|
|
if ( !opengl_screen ) {
|
|
gr_clear();
|
|
return;
|
|
}
|
|
|
|
glBindTexture(GL_TEXTURE_2D, screen_tex_handle);
|
|
gr_opengl_set_state(TEXTURE_SOURCE_NO_FILTERING, ALPHA_BLEND_NONE, ZBUFFER_TYPE_NONE);
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0,0);
|
|
glVertex2i(0,0);
|
|
|
|
glTexCoord2f(1,0);
|
|
glVertex2i(gr_screen.max_w,0);
|
|
|
|
glTexCoord2f(1,1);
|
|
glVertex2i(gr_screen.max_w,gr_screen.max_h);
|
|
|
|
glTexCoord2f(0,1);
|
|
glVertex2i(0,gr_screen.max_h);
|
|
|
|
glEnd();
|
|
|
|
|
|
}
|
|
|
|
void gr_opengl_free_screen(int id)
|
|
{
|
|
if (!opengl_screen)
|
|
return;
|
|
|
|
free(opengl_screen);
|
|
opengl_screen=NULL;
|
|
|
|
glDeleteTextures(1, &screen_tex_handle);
|
|
}
|
|
|
|
void gr_opengl_dump_frame_start(int first_frame, int frames_between_dumps)
|
|
{
|
|
STUB_FUNCTION;
|
|
}
|
|
|
|
void gr_opengl_dump_frame_stop()
|
|
{
|
|
STUB_FUNCTION;
|
|
}
|
|
|
|
void gr_opengl_dump_frame()
|
|
{
|
|
STUB_FUNCTION;
|
|
}
|
|
|
|
uint gr_opengl_lock()
|
|
{
|
|
STUB_FUNCTION;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void gr_opengl_unlock()
|
|
{
|
|
}
|
|
|
|
void opengl_zbias(int bias)
|
|
{
|
|
if (bias) {
|
|
glEnable(GL_POLYGON_OFFSET_FILL);
|
|
glPolygonOffset(0.0, -i2fl(bias));
|
|
} else {
|
|
glDisable(GL_POLYGON_OFFSET_FILL);
|
|
}
|
|
}
|
|
|
|
void gr_opengl_bitmap_internal(int x,int y,int w,int h,int sx,int sy)
|
|
{
|
|
|
|
//int i,j,k;
|
|
unsigned int tex=0; //gl texture number
|
|
|
|
bitmap * bmp;
|
|
int size;
|
|
|
|
|
|
int htemp=(int)pow(2,ceil(log10(h)/log10(2)));
|
|
int wtemp=(int)pow(2,ceil(log10(w)/log10(2)));
|
|
|
|
//gr_opengl_set_state(TEXTURE_SOURCE_NO_FILTERING, ALPHA_BLEND_NONE, ZBUFFER_TYPE_NONE);
|
|
|
|
glGenTextures(1, &tex);
|
|
|
|
Assert(tex !=0);
|
|
//Assert(opengl_screen != NULL);
|
|
//Assert(opengl_bmp_buffer != NULL);
|
|
|
|
// mharris mod - not sure if this is right...
|
|
bmp = bm_lock( gr_screen.current_bitmap, 16, 0 );
|
|
size=w*h*4;
|
|
|
|
/*mprintf(("gr_opengl_bitmap_ex_internal: at (%3d,%3d) size (%3d,%3d) name %s -- temp (%d,%d)\n",
|
|
x, y, w, h,
|
|
bm_get_filename(gr_screen.current_bitmap),wtemp,htemp));*/
|
|
|
|
const ushort * sptr = (const ushort*)bmp->data;
|
|
|
|
glColor3ub(255,255,255);
|
|
|
|
glBindTexture(GL_TEXTURE_2D,tex);
|
|
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, 4, wtemp, htemp, 0, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, NULL);
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0,0,0,w,h, GL_BGRA,GL_UNSIGNED_SHORT_1_5_5_5_REV, sptr);
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0,0);
|
|
glVertex2i(x,y);
|
|
|
|
glTexCoord2f(0,i2fl(h)/i2fl(htemp));
|
|
glVertex2i(x,y+h);
|
|
|
|
glTexCoord2f(i2fl(w)/i2fl(wtemp),i2fl(h)/i2fl(htemp));
|
|
glVertex2i(x+w,y+h);
|
|
|
|
glTexCoord2f(i2fl(w)/i2fl(wtemp),0);
|
|
glVertex2i(x+w,y);
|
|
glEnd();
|
|
|
|
bm_unlock(gr_screen.current_bitmap);
|
|
|
|
glDeleteTextures(1, &tex);
|
|
|
|
// // set the raster pos
|
|
/* int gl_y_origin = y+h;
|
|
|
|
glRasterPos2i(gr_screen.offset_x + x, gl_y_origin);
|
|
|
|
// put the bitmap into the GL framebuffer
|
|
// BAD BAD BAD - change this asap
|
|
glDrawPixels(w, h, // width, height
|
|
GL_RGBA, // format
|
|
GL_UNSIGNED_BYTE, // type
|
|
data);
|
|
*/
|
|
}
|
|
|
|
|
|
//these are penguins bitmap functions
|
|
void gr_opengl_bitmap_ex(int x,int y,int w,int h,int sx,int sy)
|
|
{
|
|
int reclip;
|
|
#ifndef NDEBUG
|
|
int count = 0;
|
|
#endif
|
|
|
|
int dx1=x, dx2=x+w-1;
|
|
int dy1=y, dy2=y+h-1;
|
|
|
|
int bw, bh;
|
|
bm_get_info( gr_screen.current_bitmap, &bw, &bh, NULL );
|
|
|
|
do {
|
|
reclip = 0;
|
|
#ifndef NDEBUG
|
|
if ( count > 1 ) Int3();
|
|
count++;
|
|
#endif
|
|
|
|
if ((dx1 > gr_screen.clip_right ) || (dx2 < gr_screen.clip_left)) return;
|
|
if ((dy1 > gr_screen.clip_bottom ) || (dy2 < gr_screen.clip_top)) return;
|
|
if ( dx1 < gr_screen.clip_left ) { sx += gr_screen.clip_left-dx1; dx1 = gr_screen.clip_left; }
|
|
if ( dy1 < gr_screen.clip_top ) { sy += gr_screen.clip_top-dy1; dy1 = gr_screen.clip_top; }
|
|
if ( dx2 > gr_screen.clip_right ) { dx2 = gr_screen.clip_right; }
|
|
if ( dy2 > gr_screen.clip_bottom ) { dy2 = gr_screen.clip_bottom; }
|
|
|
|
if ( sx < 0 ) {
|
|
dx1 -= sx;
|
|
sx = 0;
|
|
reclip = 1;
|
|
}
|
|
|
|
if ( sy < 0 ) {
|
|
dy1 -= sy;
|
|
sy = 0;
|
|
reclip = 1;
|
|
}
|
|
|
|
w = dx2-dx1+1;
|
|
h = dy2-dy1+1;
|
|
|
|
if ( sx + w > bw ) {
|
|
w = bw - sx;
|
|
dx2 = dx1 + w - 1;
|
|
}
|
|
|
|
if ( sy + h > bh ) {
|
|
h = bh - sy;
|
|
dy2 = dy1 + h - 1;
|
|
}
|
|
|
|
if ( w < 1 ) return; // clipped away!
|
|
if ( h < 1 ) return; // clipped away!
|
|
|
|
} while (reclip);
|
|
|
|
// Make sure clipping algorithm works
|
|
#ifndef NDEBUG
|
|
Assert( w > 0 );
|
|
Assert( h > 0 );
|
|
Assert( w == (dx2-dx1+1) );
|
|
Assert( h == (dy2-dy1+1) );
|
|
Assert( sx >= 0 );
|
|
Assert( sy >= 0 );
|
|
Assert( sx+w <= bw );
|
|
Assert( sy+h <= bh );
|
|
Assert( dx2 >= dx1 );
|
|
Assert( dy2 >= dy1 );
|
|
Assert( (dx1 >= gr_screen.clip_left ) && (dx1 <= gr_screen.clip_right) );
|
|
Assert( (dx2 >= gr_screen.clip_left ) && (dx2 <= gr_screen.clip_right) );
|
|
Assert( (dy1 >= gr_screen.clip_top ) && (dy1 <= gr_screen.clip_bottom) );
|
|
Assert( (dy2 >= gr_screen.clip_top ) && (dy2 <= gr_screen.clip_bottom) );
|
|
#endif
|
|
|
|
gr_opengl_bitmap_internal(x,y,w,h,sx,sy);
|
|
|
|
}
|
|
|
|
void gr_opengl_bitmap(int x, int y)
|
|
{
|
|
int w, h;
|
|
|
|
bm_get_info( gr_screen.current_bitmap, &w, &h, NULL );
|
|
int dx1=x, dx2=x+w-1;
|
|
int dy1=y, dy2=y+h-1;
|
|
int sx=0, sy=0;
|
|
|
|
if ((dx1 > gr_screen.clip_right ) || (dx2 < gr_screen.clip_left)) return;
|
|
if ((dy1 > gr_screen.clip_bottom ) || (dy2 < gr_screen.clip_top)) return;
|
|
if ( dx1 < gr_screen.clip_left ) { sx = gr_screen.clip_left-dx1; dx1 = gr_screen.clip_left; }
|
|
if ( dy1 < gr_screen.clip_top ) { sy = gr_screen.clip_top-dy1; dy1 = gr_screen.clip_top; }
|
|
if ( dx2 > gr_screen.clip_right ) { dx2 = gr_screen.clip_right; }
|
|
if ( dy2 > gr_screen.clip_bottom ) { dy2 = gr_screen.clip_bottom; }
|
|
|
|
if ( sx < 0 ) return;
|
|
if ( sy < 0 ) return;
|
|
if ( sx >= w ) return;
|
|
if ( sy >= h ) return;
|
|
|
|
// Draw bitmap bm[sx,sy] into (dx1,dy1)-(dx2,dy2)
|
|
|
|
gr_bitmap_ex(dx1,dy1,dx2-dx1+1,dy2-dy1+1,sx,sy);
|
|
}
|
|
|
|
extern char *Osreg_title;
|
|
void gr_opengl_init(int reinit)
|
|
{
|
|
char *extlist;
|
|
char *curext;
|
|
char *ver;
|
|
char curver[3];
|
|
int bpp = gr_screen.bits_per_pixel;
|
|
|
|
|
|
memset(&pfd,0,sizeof(PIXELFORMATDESCRIPTOR));
|
|
|
|
switch( bpp ) {
|
|
case 16:
|
|
/*
|
|
Gr_red=Gr_t_red;
|
|
Gr_green=Gr_t_green;
|
|
Gr_blue=Gr_t_blue;
|
|
Gr_alpha=Gr_t_alpha;
|
|
*/
|
|
Gr_red.bits = 5;
|
|
Gr_red.shift = 11;
|
|
Gr_red.scale = 8;
|
|
Gr_red.mask = 0xF800;
|
|
|
|
Gr_green.bits = 6;
|
|
Gr_green.shift = 5;
|
|
Gr_green.scale = 4;
|
|
Gr_green.mask = 0x7E0;
|
|
|
|
Gr_blue.bits = 5;
|
|
Gr_blue.shift = 0;
|
|
Gr_blue.scale = 8;
|
|
Gr_blue.mask = 0x1F;
|
|
|
|
break;
|
|
|
|
case 32:
|
|
Gr_red.bits = 8;
|
|
Gr_red.shift = 16;
|
|
Gr_red.scale = 1;
|
|
Gr_red.mask = 0xff;
|
|
|
|
Gr_green.bits = 8;
|
|
Gr_green.shift = 8;
|
|
Gr_green.scale = 1;
|
|
Gr_green.mask = 0xff00;
|
|
|
|
Gr_blue.bits = 8;
|
|
Gr_blue.shift = 0;
|
|
Gr_blue.scale = 1;
|
|
Gr_blue.mask = 0x0000ff;
|
|
|
|
Gr_alpha.bits=8;
|
|
Gr_alpha.shift=24;
|
|
Gr_alpha.mask=0xff000000;
|
|
Gr_alpha.scale=1;
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
mprintf(("Illegal BPP passed to gr_opengl_init() -- %d",bpp));
|
|
Int3(); // Illegal bpp
|
|
}
|
|
|
|
Gr_t_red.bits=5;
|
|
Gr_t_red.mask = 0x7c00;
|
|
Gr_t_red.shift = 10;
|
|
Gr_t_red.scale = 8;
|
|
|
|
Gr_t_green.bits=5;
|
|
Gr_t_green.mask = 0x03e0;
|
|
Gr_t_green.shift = 5;
|
|
Gr_t_green.scale = 8;
|
|
|
|
Gr_t_blue.bits=5;
|
|
Gr_t_blue.mask = 0x001f;
|
|
Gr_t_blue.shift = 0;
|
|
Gr_t_blue.scale = 8;
|
|
|
|
Gr_t_alpha.bits=1;
|
|
Gr_t_alpha.mask=0x8000;
|
|
Gr_t_alpha.scale=255;
|
|
Gr_t_alpha.shift=15;
|
|
|
|
/*
|
|
Gr_ta_red: bits=0, mask=f00, scale=17, shift=8
|
|
Gr_ta_green: bits=0, mask=f00, scale=17, shift=4
|
|
Gr_ta_blue: bits=0, mask=f00, scale=17, shift=0
|
|
Gr_ta_alpha: bits=0, mask=f000, scale=17, shift=c
|
|
*/
|
|
// DDOI - set these so no one else does!
|
|
Gr_ta_red.bits=4;
|
|
Gr_ta_red.mask = 0x0f00;
|
|
Gr_ta_red.shift = 8;
|
|
Gr_ta_red.scale = 17;
|
|
|
|
Gr_ta_green.bits=4;
|
|
Gr_ta_green.mask = 0x00f0;
|
|
Gr_ta_green.shift = 4;
|
|
Gr_ta_green.scale = 17;
|
|
|
|
Gr_ta_blue.bits=4;
|
|
Gr_ta_blue.mask = 0x000f;
|
|
Gr_ta_blue.shift = 0;
|
|
Gr_ta_blue.scale = 17;
|
|
|
|
Gr_ta_alpha.bits=4;
|
|
Gr_ta_alpha.mask = 0xf000;
|
|
Gr_ta_alpha.shift = 12;
|
|
Gr_ta_alpha.scale = 17;
|
|
|
|
if ( OGL_inited ) {
|
|
gr_opengl_cleanup();
|
|
OGL_inited = 0;
|
|
}
|
|
|
|
mprintf(( "Initializing opengl graphics device...\nRes:%dx%dx%d\n",gr_screen.max_w,gr_screen.max_h,gr_screen.bits_per_pixel ));
|
|
|
|
pfd.nSize=sizeof(PIXELFORMATDESCRIPTOR);
|
|
pfd.nVersion=1;
|
|
pfd.cColorBits=(ubyte)bpp;
|
|
pfd.dwFlags=PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
|
|
pfd.cDepthBits=16;
|
|
pfd.iPixelType=PFD_TYPE_RGBA;
|
|
pfd.cRedBits=(ubyte)Gr_red.bits;
|
|
pfd.cRedShift=(ubyte)Gr_red.shift;
|
|
pfd.cBlueBits=(ubyte)Gr_blue.bits;
|
|
pfd.cBlueShift=(ubyte)Gr_blue.shift;
|
|
pfd.cGreenBits=(ubyte)Gr_green.bits;
|
|
pfd.cGreenShift=(ubyte)Gr_green.shift;
|
|
|
|
|
|
int PixelFormat;
|
|
|
|
HWND wnd=(HWND)os_get_window();
|
|
|
|
|
|
dev_context=GetDC(wnd);
|
|
if (!dev_context)
|
|
{
|
|
MessageBox(wnd, "Unable to get Device context for OpenGL W32!", "error", MB_ICONERROR | MB_OK);
|
|
exit(1);
|
|
}
|
|
|
|
PixelFormat=ChoosePixelFormat(dev_context, &pfd);
|
|
if (!PixelFormat)
|
|
{
|
|
MessageBox(wnd, "Unable to choose pixel format for OpenGL W32!","error", MB_ICONERROR | MB_OK);
|
|
exit(1);
|
|
}
|
|
|
|
if (!SetPixelFormat(dev_context, PixelFormat, &pfd))
|
|
{
|
|
MessageBox(wnd, "Unable to set pixel format for OpenGL W32!", "error", MB_ICONERROR | MB_OK);
|
|
exit(1);
|
|
}
|
|
|
|
rend_context=wglCreateContext(dev_context);
|
|
if (!rend_context)
|
|
{
|
|
MessageBox(wnd, "Unable to create rendering context for OpenGL W32!", "error", MB_ICONERROR | MB_OK);
|
|
exit(1);
|
|
}
|
|
|
|
if (!wglMakeCurrent(dev_context, rend_context))
|
|
{
|
|
MessageBox(wnd, "Unable to make current thread for OpenGL W32!", "error", MB_ICONERROR | MB_OK);
|
|
exit(1);
|
|
}
|
|
|
|
ver=(char*)glGetString(GL_VERSION);
|
|
OGL_inited = 1;
|
|
if (!reinit)
|
|
{
|
|
mprintf(("OPENGL INITED!\n"));
|
|
mprintf(("\n"));
|
|
mprintf(( "Vendor : %s\n", glGetString( GL_VENDOR ) ));
|
|
mprintf(( "Renderer : %s\n", glGetString( GL_RENDERER ) ));
|
|
mprintf(( "Version : %s\n", ver ));
|
|
mprintf(( "Extensions : \n" ));
|
|
|
|
//print out extensions
|
|
OGL_extensions=(const char*)glGetString(GL_EXTENSIONS);
|
|
|
|
extlist=(char*)malloc(strlen(OGL_extensions));
|
|
memcpy(extlist, OGL_extensions, strlen(OGL_extensions));
|
|
memcpy(curver, ver,3);
|
|
|
|
float version_float=(float)atof(curver);
|
|
if (version_float < REQUIRED_GL_VERSION)
|
|
{
|
|
Error(LOCATION,"Current GL Version of %f is less than required version of %f\nSwitch video modes or update drivers", version_float, REQUIRED_GL_VERSION);
|
|
}
|
|
|
|
curext=strtok(extlist, " ");
|
|
while (curext)
|
|
{
|
|
mprintf(( "%s\n", curext ));
|
|
curext=strtok(NULL, " ");
|
|
}
|
|
free(extlist);
|
|
}
|
|
|
|
|
|
|
|
glViewport(0, 0, gr_screen.max_w, gr_screen.max_h);
|
|
|
|
if (!Cmdline_window)
|
|
{
|
|
opengl_go_fullscreen(wnd);
|
|
}
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glOrtho(0, gr_screen.max_w, gr_screen.max_h,0, 0.0, 1.0);
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
glShadeModel(GL_SMOOTH);
|
|
glEnable(GL_DITHER);
|
|
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
|
|
glHint(GL_FOG_HINT, GL_NICEST);
|
|
|
|
glEnable(GL_DEPTH_TEST);
|
|
glEnable(GL_BLEND);
|
|
|
|
glEnable(GL_TEXTURE_2D);
|
|
|
|
glDepthRange(0.0, 1.0);
|
|
|
|
glPixelStorei(GL_PACK_ALIGNMENT, 1);
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
|
|
|
glFlush();
|
|
|
|
Bm_pixel_format = BM_PIXEL_FORMAT_ARGB;
|
|
Gr_bitmap_poly = 1;
|
|
OGL_fogmode=1;
|
|
|
|
|
|
if (!reinit)
|
|
{
|
|
//start extension
|
|
opengl_get_extensions();
|
|
|
|
opengl_tcache_init (1);
|
|
}
|
|
|
|
gr_opengl_clear();
|
|
|
|
Gr_current_red = &Gr_red;
|
|
Gr_current_blue = &Gr_blue;
|
|
Gr_current_green = &Gr_green;
|
|
Gr_current_alpha = &Gr_alpha;
|
|
|
|
gr_screen.gf_flip = gr_opengl_flip;
|
|
gr_screen.gf_flip_window = gr_opengl_flip_window;
|
|
gr_screen.gf_set_clip = gr_opengl_set_clip;
|
|
gr_screen.gf_reset_clip = gr_opengl_reset_clip;
|
|
gr_screen.gf_set_font = grx_set_font;
|
|
|
|
gr_screen.gf_set_color = gr_opengl_set_color;
|
|
gr_screen.gf_set_bitmap = gr_opengl_set_bitmap;
|
|
gr_screen.gf_create_shader = gr_opengl_create_shader;
|
|
gr_screen.gf_set_shader = gr_opengl_set_shader;
|
|
gr_screen.gf_clear = gr_opengl_clear;
|
|
// gr_screen.gf_bitmap = gr_opengl_bitmap;
|
|
// gr_screen.gf_bitmap_ex = gr_opengl_bitmap_ex;
|
|
gr_screen.gf_aabitmap = gr_opengl_aabitmap;
|
|
gr_screen.gf_aabitmap_ex = gr_opengl_aabitmap_ex;
|
|
|
|
gr_screen.gf_rect = gr_opengl_rect;
|
|
gr_screen.gf_shade = gr_opengl_shade;
|
|
gr_screen.gf_string = gr_opengl_string;
|
|
gr_screen.gf_circle = gr_opengl_circle;
|
|
|
|
gr_screen.gf_line = gr_opengl_line;
|
|
gr_screen.gf_aaline = gr_opengl_aaline;
|
|
gr_screen.gf_pixel = gr_opengl_pixel;
|
|
gr_screen.gf_scaler = gr_opengl_scaler;
|
|
gr_screen.gf_tmapper = gr_opengl_tmapper;
|
|
|
|
gr_screen.gf_gradient = gr_opengl_gradient;
|
|
|
|
gr_screen.gf_set_palette = gr_opengl_set_palette;
|
|
gr_screen.gf_get_color = gr_opengl_get_color;
|
|
gr_screen.gf_init_color = gr_opengl_init_color;
|
|
gr_screen.gf_init_alphacolor = gr_opengl_init_alphacolor;
|
|
gr_screen.gf_set_color_fast = gr_opengl_set_color_fast;
|
|
gr_screen.gf_print_screen = gr_opengl_print_screen;
|
|
|
|
gr_screen.gf_fade_in = gr_opengl_fade_in;
|
|
gr_screen.gf_fade_out = gr_opengl_fade_out;
|
|
gr_screen.gf_flash = gr_opengl_flash;
|
|
|
|
gr_screen.gf_zbuffer_get = gr_opengl_zbuffer_get;
|
|
gr_screen.gf_zbuffer_set = gr_opengl_zbuffer_set;
|
|
gr_screen.gf_zbuffer_clear = gr_opengl_zbuffer_clear;
|
|
|
|
gr_screen.gf_save_screen = gr_opengl_save_screen;
|
|
gr_screen.gf_restore_screen = gr_opengl_restore_screen;
|
|
gr_screen.gf_free_screen = gr_opengl_free_screen;
|
|
|
|
gr_screen.gf_dump_frame_start = gr_opengl_dump_frame_start;
|
|
gr_screen.gf_dump_frame_stop = gr_opengl_dump_frame_stop;
|
|
gr_screen.gf_dump_frame = gr_opengl_dump_frame;
|
|
|
|
gr_screen.gf_set_gamma = gr_opengl_set_gamma;
|
|
|
|
gr_screen.gf_lock = gr_opengl_lock;
|
|
gr_screen.gf_unlock = gr_opengl_unlock;
|
|
|
|
gr_screen.gf_fog_set = gr_opengl_fog_set;
|
|
|
|
// UnknownPlayer : Don't recognize this - MAY NEED DEBUGGING
|
|
gr_screen.gf_get_region = gr_opengl_get_region;
|
|
|
|
// now for the bitmap functions
|
|
gr_screen.gf_bm_get_next_handle = bm_gfx_get_next_handle;
|
|
gr_screen.gf_bm_close = bm_gfx_close;
|
|
gr_screen.gf_bm_init = bm_gfx_init;
|
|
gr_screen.gf_bm_get_frame_usage = bm_gfx_get_frame_usage;
|
|
gr_screen.gf_bm_create = bm_gfx_create;
|
|
gr_screen.gf_bm_load = bm_gfx_load;
|
|
gr_screen.gf_bm_load_duplicate = bm_gfx_load_duplicate;
|
|
gr_screen.gf_bm_load_animation = bm_gfx_load_animation;
|
|
gr_screen.gf_bm_get_info = bm_gfx_get_info;
|
|
gr_screen.gf_bm_lock = bm_gfx_lock;
|
|
gr_screen.gf_bm_unlock = bm_gfx_unlock;
|
|
gr_screen.gf_bm_get_palette = bm_gfx_get_palette;
|
|
gr_screen.gf_bm_release = bm_gfx_release;
|
|
gr_screen.gf_bm_unload = bm_gfx_unload;
|
|
gr_screen.gf_bm_unload_all = bm_gfx_unload_all;
|
|
gr_screen.gf_bm_page_in_texture = bm_gfx_page_in_texture;
|
|
gr_screen.gf_bm_page_in_start = bm_gfx_page_in_start;
|
|
gr_screen.gf_bm_page_in_stop = bm_gfx_page_in_stop;
|
|
gr_screen.gf_bm_get_cache_slot = bm_gfx_get_cache_slot;
|
|
gr_screen.gf_bm_24_to_16 = bm_gfx_24_to_16;
|
|
gr_screen.gf_bm_get_components = bm_gfx_get_components;
|
|
gr_screen.gf_bm_get_section_size = bm_gfx_get_section_size;
|
|
|
|
gr_screen.gf_bm_page_in_nondarkening_texture = bm_gfx_page_in_nondarkening_texture;
|
|
gr_screen.gf_bm_page_in_xparent_texture = bm_gfx_page_in_xparent_texture;
|
|
gr_screen.gf_bm_page_in_aabitmap = bm_gfx_page_in_aabitmap;
|
|
|
|
// RunGLTest( 0, NULL, 0, 0, 0, 0.0, 0 );
|
|
|
|
gr_screen.gf_get_pixel = gr_opengl_get_pixel;
|
|
|
|
gr_screen.gf_set_cull = gr_opengl_set_cull;
|
|
|
|
gr_screen.gf_cross_fade = gr_opengl_cross_fade;
|
|
|
|
gr_screen.gf_filter_set = gr_opengl_filter_set;
|
|
|
|
gr_screen.gf_tcache_set = gr_opengl_tcache_set;
|
|
|
|
gr_screen.gf_set_clear_color = gr_opengl_set_clear_color;
|
|
|
|
Mouse_hidden++;
|
|
gr_reset_clip();
|
|
gr_clear();
|
|
gr_flip();
|
|
Mouse_hidden--;
|
|
|
|
//if S3TC compression is found, then "GL_ARB_texture_compression" must be an extension
|
|
Texture_compression_enabled=((GL_Extensions[GL_TEX_COMP_S3TC].enabled) && (GL_Extensions[GL_COMP_TEX].enabled));
|
|
|
|
//setup ansiotropic filtering if found
|
|
if (GL_Extensions[GL_TEX_FILTER_ANSIO].enabled)
|
|
{
|
|
float max_ansio;
|
|
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &max_ansio);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, max_ansio);
|
|
}
|
|
}
|
|
#endif
|
|
|