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/**
* \file miniglxP.h
* \brief Define replacements for some X data types and define the DRI-related
* data structures.
*
* \note Cut down version of glxclient.h.
*
*/
#ifndef _mini_GLX_client_h_
#define _mini_GLX_client_h_
#include <signal.h>
#include <linux/fb.h>
#include <GL/miniglx.h>
#include "glheader.h"
#include "mtypes.h"
#include "driver.h"
#include "GL/internal/dri_interface.h"
/**
* \brief Supported pixel formats.
*/
enum PixelFormat {
PF_B8G8R8, /**< \brief 24-bit BGR */
PF_B8G8R8A8, /**< \brief 32-bit BGRA */
PF_B5G6R5, /**< \brief 16-bit BGR */
PF_B5G5R5, /**< \brief 15-bit BGR */
PF_CI8 /**< \brief 8-bit color index */
};
/**
* \brief X Visual type.
*
* \sa ::Visual, \ref datatypes.
*/
struct MiniGLXVisualRec {
/** \brief GLX visual information */
const __GLcontextModes *mode;
/** \brief pointer back to corresponding ::XVisualInfo */
XVisualInfo *visInfo;
/** \brief display handle */
Display *dpy;
/** \brief pixel format */
enum PixelFormat pixelFormat;
};
/**
* \brief X Window type.
*
* \sa ::Window, \ref datatypes.
*/
struct MiniGLXWindowRec {
Visual *visual;
/** \brief position (always 0,0) */
int x, y;
/** \brief size */
unsigned int w, h;
void *frontStart; /**< \brief start of front color buffer */
void *backStart; /**< \brief start of back color buffer */
size_t size; /**< \brief color buffer size, in bytes */
GLuint bytesPerPixel;
GLuint rowStride; /**< \brief in bytes */
GLubyte *frontBottom; /**< \brief pointer to last row */
GLubyte *backBottom; /**< \brief pointer to last row */
GLubyte *curBottom; /**< = frontBottom or backBottom */
__DRIdrawable driDrawable;
GLuint ismapped;
};
/**
* \brief GLXContext type.
*
* \sa ::GLXContext, \ref datatypes.
*/
struct MiniGLXContextRec {
Window drawBuffer; /**< \brief drawing buffer */
Window curBuffer; /**< \brief current buffer */
VisualID vid; /**< \brief visual ID */
__DRIcontext driContext; /**< \brief context dependent methods */
};
#define MINIGLX_BUF_SIZE 512
#define MINIGLX_MAX_SERVER_FDS 10
#define MINIGLX_MAX_CLIENT_FDS 1
#define MINIGLX_EVENT_QUEUE_SZ 16
#define MINIGLX_EVENT_QUEUE_MASK (MINIGLX_EVENT_QUEUE_SZ-1)
/**
* A connection to/from the server
*
* All information is to/from the server is buffered and then dispatched by
* __miniglx_Select() to avoid blocking the server.
*/
struct MiniGLXConnection {
int fd; /**< \brief file descriptor */
char readbuf[MINIGLX_BUF_SIZE]; /**< \brief read buffer */
char writebuf[MINIGLX_BUF_SIZE]; /**< \brief write buffer */
int readbuf_count; /**< \brief count of bytes waiting to be read */
int writebuf_count; /**< \brief count of bytes waiting to be written */
};
/**
* \brief X Display type
*
* \sa ::Display, \ref datatypes.
*/
struct MiniGLXDisplayRec {
/** \brief fixed framebuffer screen info */
struct fb_fix_screeninfo FixedInfo;
/** \brief original and current variable framebuffer screen info */
struct fb_var_screeninfo OrigVarInfo, VarInfo;
struct sigaction OrigSigUsr1;
struct sigaction OrigSigUsr2;
int OriginalVT;
int ConsoleFD; /**< \brief console TTY device file descriptor */
int FrameBufferFD; /**< \brief framebuffer device file descriptor */
int NumWindows; /**< \brief number of open windows */
Window TheWindow; /**< \brief open window - only allow one window for now */
int rotateMode;
volatile int vtSignalFlag;
volatile int haveVT; /**< \brief whether the VT is hold */
int hwActive; /**< \brief whether the hardware is active -- mimics
the variations of MiniGLXDisplayRec::haveVT */
int IsClient; /**< \brief whether it's a client or the server */
int clientID;
int nrFds; /**< \brief number of connections (usually just one for the clients) */
struct MiniGLXConnection *fd; /**< \brief connections */
struct {
int nr, head, tail;
XEvent queue[MINIGLX_EVENT_QUEUE_SZ];
} eventqueue;
/**
* \name Visuals
*
* Visuals (configs) in this screen.
*/
/*@{*/
int numModes; /**< \brief Number of modes. */
const __GLcontextModes *modes; /**< \brief Modes list pointer. */
const __GLcontextModes *driver_modes; /**< \brief Modes filtered by driver. */
/*@}*/
/**
* \name From __GLXdisplayPrivate
*/
/*@{*/
PFNCREATENEWSCREENFUNC createNewScreen; /**< \brief \e __driCreateScreen hook */
__DRIscreen driScreen; /**< \brief Screen dependent methods */
void *dlHandle; /**<
* \brief handle to the client dynamic
* library
*/
/*@}*/
/**
* \brief Mini GLX specific driver hooks
*/
struct DRIDriverRec *driver;
struct DRIDriverContextRec driverContext;
/**
* \name Configuration details
*
* They are read from a configuration file by __read_config_file().
*/
/*@{*/
const char *fbdevDevice;
const char *clientDriverName;
/*@}*/
};
extern Bool __glXWindowExists(__DRInativeDisplay *dpy, GLXDrawable draw);
extern int __miniglx_open_connections( Display *dpy );
extern void __miniglx_close_connections( Display *dpy );
#endif /* !_mini_GLX_client_h_ */
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