2006-04-12 01:59:08 +02:00
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/**
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* =========================================================================
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* File : gfx.h
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* Project : 0 A.D.
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* Description : graphics card detection.
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* =========================================================================
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*/
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2007-05-07 18:33:24 +02:00
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// license: GPL; see lib/license.txt
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2006-04-12 01:59:08 +02:00
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2007-05-07 18:33:24 +02:00
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#ifndef INCLUDED_GFX
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#define INCLUDED_GFX
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2005-01-23 18:45:25 +01:00
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2005-03-20 22:34:01 +01:00
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const size_t GFX_CARD_LEN = 128;
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2006-07-14 16:00:00 +02:00
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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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2006-04-10 22:12:25 +02:00
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2006-07-14 16:00:00 +02:00
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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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2004-06-19 16:45:04 +02:00
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2006-07-14 16:00:00 +02:00
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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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2005-06-16 23:46:33 +02:00
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2006-07-14 16:00:00 +02:00
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/**
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* detect graphics card and set the above information.
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**/
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2006-04-10 22:12:25 +02:00
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extern void gfx_detect(void);
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2006-07-14 16:00:00 +02:00
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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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2006-09-22 15:19:40 +02:00
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* @return LibError; INFO::OK unless: some information was requested
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2006-07-14 16:00:00 +02:00
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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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2006-04-10 22:12:25 +02:00
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extern LibError gfx_get_video_mode(int* xres, int* yres, int* bpp, int* freq);
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2006-07-14 16:00:00 +02:00
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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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2006-04-10 22:12:25 +02:00
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extern LibError gfx_get_monitor_size(int& width_mm, int& height_mm);
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2007-05-07 18:33:24 +02:00
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#endif // #ifndef INCLUDED_GFX
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