82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* graphics card detection.
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*/
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#ifndef INCLUDED_GFX
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#define INCLUDED_GFX
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const size_t GFX_CARD_LEN = 128;
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/**
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* description of graphics card.
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* initial value is "".
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**/
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extern char gfx_card[GFX_CARD_LEN];
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// note: increased from 64 by Joe Cocovich; this large size is necessary
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// because there must be enough space to list the versions of all drivers
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// mentioned in the registry (including unused remnants).
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const size_t GFX_DRV_VER_LEN = 256;
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/**
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* (OpenGL) graphics driver identification and version.
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* initial value is "".
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**/
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extern char gfx_drv_ver[GFX_DRV_VER_LEN];
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/**
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* approximate amount of graphics memory [MiB]
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**/
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extern int gfx_mem;
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/**
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* detect graphics card and set the above information.
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**/
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extern void gfx_detect(void);
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/**
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* get current video mode.
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*
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* this is useful when choosing a new video mode.
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*
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* @param xres, yres (optional out) resolution [pixels]
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* @param bpp (optional out) bits per pixel
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* @param freq (optional out) vertical refresh rate [Hz]
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* @return LibError; INFO::OK unless: some information was requested
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* (i.e. pointer is non-NULL) but cannot be returned.
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* on failure, the outputs are all left unchanged (they are
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* assumed initialized to defaults)
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**/
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extern LibError gfx_get_video_mode(int* xres, int* yres, int* bpp, int* freq);
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/**
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* get monitor dimensions.
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*
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* this is useful for determining aspect ratio.
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*
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* @param width_mm (out) screen width [mm]
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* @param height_mm (out) screen height [mm]
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* @return LibError. on failure, the outputs are all left unchanged
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* on failure, the outputs are all left unchanged (they are
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* assumed initialized to defaults)
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**/
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extern LibError gfx_get_monitor_size(int& width_mm, int& height_mm);
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#endif // #ifndef INCLUDED_GFX
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