71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/**
|
|
* =========================================================================
|
|
* File : gfx.h
|
|
* Project : 0 A.D.
|
|
* Description : graphics card detection.
|
|
* =========================================================================
|
|
*/
|
|
|
|
// license: GPL; see lib/license.txt
|
|
|
|
#ifndef INCLUDED_GFX
|
|
#define INCLUDED_GFX
|
|
|
|
const size_t GFX_CARD_LEN = 128;
|
|
/**
|
|
* description of graphics card.
|
|
* initial value is "".
|
|
**/
|
|
extern char gfx_card[GFX_CARD_LEN];
|
|
|
|
// note: increased from 64 by Joe Cocovich; this large size is necessary
|
|
// because there must be enough space to list the versions of all drivers
|
|
// mentioned in the registry (including unused remnants).
|
|
const size_t GFX_DRV_VER_LEN = 256;
|
|
/**
|
|
* (OpenGL) graphics driver identification and version.
|
|
* initial value is "".
|
|
**/
|
|
extern char gfx_drv_ver[GFX_DRV_VER_LEN];
|
|
|
|
/**
|
|
* approximate amount of graphics memory [MiB]
|
|
**/
|
|
extern int gfx_mem;
|
|
|
|
/**
|
|
* detect graphics card and set the above information.
|
|
**/
|
|
extern void gfx_detect(void);
|
|
|
|
|
|
/**
|
|
* get current video mode.
|
|
*
|
|
* this is useful when choosing a new video mode.
|
|
*
|
|
* @param xres, yres (optional out) resolution [pixels]
|
|
* @param bpp (optional out) bits per pixel
|
|
* @param freq (optional out) vertical refresh rate [Hz]
|
|
* @return LibError; INFO::OK unless: some information was requested
|
|
* (i.e. pointer is non-NULL) but cannot be returned.
|
|
* on failure, the outputs are all left unchanged (they are
|
|
* assumed initialized to defaults)
|
|
**/
|
|
extern LibError gfx_get_video_mode(int* xres, int* yres, int* bpp, int* freq);
|
|
|
|
/**
|
|
* get monitor dimensions.
|
|
*
|
|
* this is useful for determining aspect ratio.
|
|
*
|
|
* @param width_mm (out) screen width [mm]
|
|
* @param height_mm (out) screen height [mm]
|
|
* @return LibError. on failure, the outputs are all left unchanged
|
|
* on failure, the outputs are all left unchanged (they are
|
|
* assumed initialized to defaults)
|
|
**/
|
|
extern LibError gfx_get_monitor_size(int& width_mm, int& height_mm);
|
|
|
|
#endif // #ifndef INCLUDED_GFX
|