127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/***************************************************************************
|
|
*
|
|
* grdevice.h
|
|
*
|
|
* Graphics device interface
|
|
*
|
|
* Copyright 1999 - The FreeType Development Team - www.freetype.org
|
|
*
|
|
*
|
|
***************************************************************************/
|
|
|
|
#ifndef GRDEVICE_H
|
|
#define GRDEVICE_H
|
|
|
|
#include "graph.h"
|
|
|
|
|
|
/********************************************************************
|
|
*
|
|
* <FuncType>
|
|
* grDeviceInitFunc
|
|
*
|
|
* <Description>
|
|
* Simple device initialiser function
|
|
*
|
|
* <Return>
|
|
* error code. 0 means success
|
|
*
|
|
********************************************************************/
|
|
|
|
typedef int (*grDeviceInitFunc)( void );
|
|
|
|
|
|
/********************************************************************
|
|
*
|
|
* <FuncType>
|
|
* grDeviceDoneFunc
|
|
*
|
|
* <Description>
|
|
* Simple device finaliser function
|
|
*
|
|
* <Return>
|
|
* error code. 0 means success
|
|
*
|
|
********************************************************************/
|
|
|
|
typedef void (*grDeviceDoneFunc)( void );
|
|
|
|
|
|
/********************************************************************
|
|
*
|
|
* <FuncType>
|
|
* grDeviceInitSurfaceFunc
|
|
*
|
|
* <Description>
|
|
* initializes a new surface for the device. This may be a window
|
|
* or a video screen, depending on the device.
|
|
*
|
|
* <Input>
|
|
* surface :: handle to target surface
|
|
*
|
|
* <InOut>
|
|
* bitmap :: handle to bitmap descriptor
|
|
*
|
|
********************************************************************/
|
|
|
|
typedef int (*grDeviceInitSurfaceFunc)( grSurface* surface,
|
|
grBitmap* bitmap );
|
|
|
|
|
|
/********************************************************************
|
|
*
|
|
* <Struct>
|
|
* grDevice
|
|
*
|
|
* <Description>
|
|
* Simple device interface structure
|
|
*
|
|
* <Fields>
|
|
* surface_objsize :: size in bytes of a single surface object for
|
|
* this device.
|
|
*
|
|
* device_name :: name of device, e.g. "x11", "os2pm", "directx" etc..
|
|
* init :: device initialisation routine
|
|
* done :: device finalisation
|
|
* new_surface :: function used to create a new surface (screen or
|
|
* window) from the device
|
|
*
|
|
* num_pixel_modes :: the number of pixel modes supported by this
|
|
* device. This value _must_ be set to -1
|
|
* default, unless the device provides a
|
|
* static set of pixel modes (fullscreen).
|
|
*
|
|
* pixel_modes :: an array of pixel modes supported by this
|
|
* device
|
|
*
|
|
* <Note>
|
|
* the fields "num_pixel_modes" and "pixel_modes" must be
|
|
* set by the "init" function.
|
|
*
|
|
* This allows windowed devices to "discover" at run-time the
|
|
* available pixel modes they can provide depending on the
|
|
* current screen depth.
|
|
*
|
|
********************************************************************/
|
|
|
|
struct grDevice_
|
|
{
|
|
int surface_objsize;
|
|
const char* device_name; /* name of device */
|
|
|
|
grDeviceInitFunc init;
|
|
grDeviceDoneFunc done;
|
|
|
|
grDeviceInitSurfaceFunc init_surface;
|
|
|
|
int num_pixel_modes;
|
|
grPixelMode* pixel_modes;
|
|
};
|
|
|
|
|
|
extern grDeviceChain gr_device_chain[];
|
|
extern int gr_num_devices;
|
|
|
|
|
|
#endif /* GRDEVICE_H */
|