patch to import Jon Smirl's work from Bitkeeper

1 files changed, 194 insertions, 0 deletions

diff --git a/src/glx/mini/miniglxP.h b/src/glx/mini/miniglxP.h
new file mode 100644
index 0000000000..a32429a677
--- /dev/null
+++ b/src/glx/mini/miniglxP.h
@@ -0,0 +1,194 @@
+/**
+ * \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 "dri.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. */
+   /*@}*/
+    
+   /**
+   * \name From __GLXdisplayPrivate
+   */
+   /*@{*/
+   driCreateScreenFunc *createScreen; /**< \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 __DRIscreen *__glXFindDRIScreen(Display *dpy, int scrn);
+
+extern Bool __glXWindowExists(Display *dpy, GLXDrawable draw);
+
+extern int __miniglx_open_connections( Display *dpy );
+extern void __miniglx_close_connections( Display *dpy );
+
+#endif /* !_mini_GLX_client_h_ */