66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
/**
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* =========================================================================
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* File : gfx.cpp
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* Project : 0 A.D.
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* Description : graphics card detection.
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*
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* @author Jan.Wassenberg@stud.uni-karlsruhe.de
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* =========================================================================
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*/
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/*
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* Copyright (c) 2004-2005 Jan Wassenberg
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*
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* Redistribution and/or modification are also permitted under the
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* terms of the GNU General Public License as published by the
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* Free Software Foundation (version 2 or later, at your option).
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include "precompiled.h"
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#include "lib/lib.h"
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#include "lib/sdl.h"
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#include "gfx.h"
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char gfx_card[GFX_CARD_LEN] = "";
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char gfx_drv_ver[GFX_DRV_VER_LEN] = "";
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int gfx_mem = -1; // [MiB]; approximate
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extern "C" LibError ogl_get_gfx_info();
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// detect graphics card and set the above information.
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void gfx_detect()
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{
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// TODO: add sizeof(FB)?
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gfx_mem = (SDL_GetVideoInfo()->video_mem) / 1048576; // [MiB]
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// try platform-specific version: they return more
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// detailed information, and don't require OpenGL to be ready.
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#if OS_WIN
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extern LibError win_get_gfx_info();
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if(win_get_gfx_info() < 0)
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#endif
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{
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// the OpenGL version should always work, unless OpenGL isn't ready for use,
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// or we were called between glBegin and glEnd.
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ogl_get_gfx_info();
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}
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// remove crap from vendor names. (don't dare touch the model name -
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// it's too risky, there are too many different strings)
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#define SHORTEN(what, chars_to_keep)\
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if(!strncmp(gfx_card, what, ARRAY_SIZE(what)-1))\
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memmove(gfx_card+chars_to_keep, gfx_card+ARRAY_SIZE(what)-1, strlen(gfx_card)-(ARRAY_SIZE(what)-1)+1);
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SHORTEN("ATI Technologies Inc.", 3);
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SHORTEN("NVIDIA Corporation", 6);
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SHORTEN("S3 Graphics", 2); // returned by EnumDisplayDevices
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SHORTEN("S3 Graphics, Incorporated", 2); // returned by GL_VENDOR
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#undef SHORTEN
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}
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