1 files changed, 580 insertions, 0 deletions
diff --git a/EdkUnixPkg/Sec/UgaX11.c b/EdkUnixPkg/Sec/UgaX11.c
new file mode 100644
index 0000000000..565689a727
--- /dev/null
+++ b/EdkUnixPkg/Sec/UgaX11.c
@@ -0,0 +1,580 @@
+#include "Uefi/UefiSpec.h"
+#include "Protocol/UnixThunk.h"
+#include "Protocol/SimpleTextIn.h"
+#include "Protocol/UgaDraw.h"
+#include "Protocol/UnixUgaIo.h"
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xos.h>
+#include <X11/extensions/XShm.h>
+#include <X11/keysym.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+/* XQueryPointer  */
+
+struct uga_drv_shift_mask
+{
+  unsigned char shift;
+  unsigned char size;
+  unsigned char csize;
+};
+
+#define NBR_KEYS 32
+typedef struct
+{
+  EFI_UNIX_UGA_IO_PROTOCOL UgaIo;
+
+  Display *display;
+  int screen;			/* values for window_size in main */
+  Window win;
+  GC gc;
+  Visual *visual;
+
+  int depth;
+  unsigned int width;
+  unsigned int height;
+  unsigned int line_bytes;
+  unsigned int pixel_shift;
+  unsigned char *image_data;
+
+  struct uga_drv_shift_mask r, g, b;
+
+  int use_shm;
+  XShmSegmentInfo xshm_info;
+  XImage *image;
+
+  unsigned int key_rd;
+  unsigned int key_wr;
+  unsigned int key_count;
+  EFI_INPUT_KEY keys[NBR_KEYS];
+} UGA_IO_PRIVATE;
+
+static void
+HandleEvents(UGA_IO_PRIVATE *drv);
+
+static void
+fill_shift_mask (struct uga_drv_shift_mask *sm, unsigned long mask)
+{
+  sm->shift = 0;
+  sm->size = 0;
+  while ((mask & 1) == 0)
+    {
+      mask >>= 1;
+      sm->shift++;
+    }
+  while (mask & 1)
+    {
+      sm->size++;
+      mask >>= 1;
+    }
+  sm->csize = 8 - sm->size;
+}
+
+static int
+TryCreateShmImage(UGA_IO_PRIVATE *drv)
+{
+  drv->image = XShmCreateImage (drv->display, drv->visual,
+				drv->depth, ZPixmap, NULL, &drv->xshm_info,
+				drv->width, drv->height);
+  if (drv->image == NULL)
+    return 0;
+
+  switch (drv->image->bitmap_unit) {
+  case 32:
+    drv->pixel_shift = 2;
+    break;
+  case 16:
+    drv->pixel_shift = 1;
+    break;
+  case 8:
+    drv->pixel_shift = 0;
+    break;
+  }
+
+  drv->xshm_info.shmid = shmget
+	(IPC_PRIVATE, drv->image->bytes_per_line * drv->image->height,
+	 IPC_CREAT | 0777);
+  if (drv->xshm_info.shmid < 0)
+    {
+      XDestroyImage(drv->image);
+      return 0;
+    }
+      
+  drv->image_data = shmat (drv->xshm_info.shmid, NULL, 0);
+  if(!drv->image_data)
+    {
+      shmctl (drv->xshm_info.shmid, IPC_RMID, NULL);
+      XDestroyImage(drv->image);
+      return 0;
+    }
+  /* Can this fail ?  */
+  shmctl (drv->xshm_info.shmid, IPC_RMID, NULL);
+
+  drv->xshm_info.shmaddr = drv->image_data;
+  drv->image->data = drv->image_data;
+	  
+  if (!XShmAttach (drv->display, &drv->xshm_info))
+    {
+      shmdt (drv->image_data);
+      XDestroyImage(drv->image);
+      return 0;
+    }
+  return 1;
+}
+
+static
+EFI_STATUS
+UgaClose (EFI_UNIX_UGA_IO_PROTOCOL *UgaIo)
+{
+  UGA_IO_PRIVATE *drv = (UGA_IO_PRIVATE *)UgaIo;
+
+  if (drv == NULL)
+    return EFI_SUCCESS;
+  if (drv->image != NULL)
+    {
+      XDestroyImage(drv->image);
+
+      if (drv->use_shm)
+	shmdt (drv->image_data);
+
+      drv->image_data = NULL;
+      drv->image = NULL;
+    }
+  XDestroyWindow(drv->display, drv->win);
+  XCloseDisplay(drv->display);
+  free(drv);
+  return EFI_SUCCESS;
+}
+
+static
+EFI_STATUS
+UgaSize(EFI_UNIX_UGA_IO_PROTOCOL *UgaIo, UINT32 Width, UINT32 Height)
+{
+  UGA_IO_PRIVATE *drv = (UGA_IO_PRIVATE *)UgaIo;
+  XSizeHints size_hints;
+
+  /* Destroy current buffer if created.  */
+  if (drv->image != NULL)
+    {
+      XDestroyImage(drv->image);
+
+      if (drv->use_shm)
+	shmdt (drv->image_data);
+
+      drv->image_data = NULL;
+      drv->image = NULL;
+    }
+
+  drv->width = Width;
+  drv->height = Height;
+  XResizeWindow (drv->display, drv->win, Width, Height);
+
+  /* Allocate image.  */
+  if (XShmQueryExtension(drv->display) && TryCreateShmImage(drv))
+    {
+      drv->use_shm = 1;
+    }	
+  else	
+    {
+      drv->use_shm = 0;
+      if (drv->depth > 16)
+	drv->pixel_shift = 2;
+      else if (drv->depth > 8)
+	drv->pixel_shift = 1;
+      else
+	drv->pixel_shift = 0;
+      
+      drv->image_data = malloc((drv->width * drv->height) << drv->pixel_shift);
+      drv->image = XCreateImage (drv->display, drv->visual, drv->depth,
+				 ZPixmap, 0, drv->image_data,
+				 drv->width, drv->height,
+				 8 << drv->pixel_shift, 0);
+    }
+  drv->line_bytes = drv->image->bytes_per_line;
+  fill_shift_mask (&drv->r, drv->image->red_mask);
+  fill_shift_mask (&drv->g, drv->image->green_mask);
+  fill_shift_mask (&drv->b, drv->image->blue_mask);
+
+  /* Set WM hints.  */
+  size_hints.flags = PSize | PMinSize | PMaxSize;
+  size_hints.min_width = size_hints.max_width = size_hints.base_width = Width;
+  size_hints.min_height = size_hints.max_height = size_hints.base_height = Height;
+  XSetWMNormalHints (drv->display, drv->win, &size_hints);
+
+  XMapWindow (drv->display, drv->win);
+  HandleEvents(drv);
+  return EFI_SUCCESS;
+}
+
+static void
+handleKeyEvent(UGA_IO_PRIVATE *drv, XEvent *ev)
+{
+  KeySym keysym;
+  char str[4];
+  EFI_INPUT_KEY Key;
+  int res;
+
+  if (drv->key_count == NBR_KEYS)
+    return;
+
+  res = XLookupString(&ev->xkey, str, sizeof(str), &keysym, NULL);
+  Key.ScanCode = 0;
+  Key.UnicodeChar = 0;
+  switch (keysym) {
+  case XK_Home:       Key.ScanCode = SCAN_HOME;       break;
+  case XK_End:        Key.ScanCode = SCAN_END;        break;
+  case XK_Left:       Key.ScanCode = SCAN_LEFT;       break;
+  case XK_Right:      Key.ScanCode = SCAN_RIGHT;      break;
+  case XK_Up:         Key.ScanCode = SCAN_UP;         break;
+  case XK_Down:       Key.ScanCode = SCAN_DOWN;       break;
+  case XK_Delete:     Key.ScanCode = SCAN_DELETE;     break;
+  case XK_Insert:     Key.ScanCode = SCAN_INSERT;     break;
+  case XK_Page_Up:    Key.ScanCode = SCAN_PAGE_UP;    break;
+  case XK_Page_Down:  Key.ScanCode = SCAN_PAGE_DOWN;  break;
+  case XK_Escape:     Key.ScanCode = SCAN_ESC;        break;
+
+  case XK_F1:   Key.ScanCode = SCAN_F1;   break;
+  case XK_F2:   Key.ScanCode = SCAN_F2;   break;
+  case XK_F3:   Key.ScanCode = SCAN_F3;   break;
+  case XK_F4:   Key.ScanCode = SCAN_F4;   break;
+  case XK_F5:   Key.ScanCode = SCAN_F5;   break;
+  case XK_F6:   Key.ScanCode = SCAN_F6;   break;
+  case XK_F7:   Key.ScanCode = SCAN_F7;   break;
+  case XK_F8:   Key.ScanCode = SCAN_F8;   break;
+  case XK_F9:   Key.ScanCode = SCAN_F9;   break;
+
+  default:
+    if (res == 1) {
+      Key.UnicodeChar = str[0];
+    } else {
+      return;
+    }
+  }
+
+  drv->keys[drv->key_wr] = Key;
+  drv->key_wr = (drv->key_wr + 1) % NBR_KEYS;
+  drv->key_count++;
+}
+
+static void
+Redraw(UGA_IO_PRIVATE *drv, UINTN X, UINTN Y, UINTN Width, UINTN Height)
+{
+  if (drv->use_shm)
+    XShmPutImage (drv->display, drv->win, drv->gc, drv->image,
+		  X, Y, X, Y, Width, Height, False);
+  else
+    XPutImage (drv->display, drv->win, drv->gc, drv->image,
+		  X, Y, X, Y, Width, Height);
+}
+
+static void
+HandleEvent(UGA_IO_PRIVATE *drv, XEvent *ev)
+{
+  switch (ev->type)
+    {
+    case Expose:
+      Redraw(drv, ev->xexpose.x, ev->xexpose.y,
+	     ev->xexpose.width, ev->xexpose.height);
+      break;
+    case GraphicsExpose:
+      Redraw(drv, ev->xgraphicsexpose.x, ev->xgraphicsexpose.y,
+	     ev->xgraphicsexpose.width, ev->xgraphicsexpose.height);
+      break;
+    case KeyPress:
+      handleKeyEvent(drv, ev);
+      break;
+    case MappingNotify:
+      XRefreshKeyboardMapping(&ev->xmapping);
+      break;
+#if 0
+    case DestroyNotify:
+      XCloseDisplay (drv->display);
+      exit (1);
+      break;
+#endif
+    case NoExpose:
+    default:
+      break;
+    }
+}
+
+static void
+HandleEvents(UGA_IO_PRIVATE *drv)
+{
+  while (XPending(drv->display) != 0)
+    {
+      XEvent ev;
+	  
+      XNextEvent (drv->display, &ev);
+      HandleEvent(drv, &ev);
+    }
+}
+
+static
+unsigned long
+UgaPixelToColor (UGA_IO_PRIVATE *drv, EFI_UGA_PIXEL pixel)
+{
+  return ((pixel.Red >> drv->r.csize) << drv->r.shift)
+    | ((pixel.Green >> drv->g.csize) << drv->g.shift)
+    | ((pixel.Blue >> drv->b.csize) << drv->b.shift);
+}
+
+static
+EFI_UGA_PIXEL
+UgaColorToPixel (UGA_IO_PRIVATE *drv, unsigned long val)
+{
+  EFI_UGA_PIXEL res;
+
+  /* FIXME: should round instead of truncate.  */
+  res.Red = (val >> drv->r.shift) << drv->r.csize;
+  res.Green = (val >> drv->g.shift) << drv->g.csize;
+  res.Blue = (val >> drv->b.shift) << drv->b.csize;
+
+  return res;
+}
+
+static
+EFI_STATUS
+UgaCheckKey(EFI_UNIX_UGA_IO_PROTOCOL *UgaIo)
+{
+  UGA_IO_PRIVATE *drv = (UGA_IO_PRIVATE *)UgaIo;
+  HandleEvents(drv);
+  if (drv->key_count != 0)
+    return EFI_SUCCESS;
+  else {
+    /* EFI is certainly polling.  Be CPU-friendly.  */
+    usleep (50000);
+    return EFI_NOT_READY;
+  }
+}
+
+static
+EFI_STATUS
+UgaGetKey(EFI_UNIX_UGA_IO_PROTOCOL *UgaIo, EFI_INPUT_KEY *key)
+{
+  UGA_IO_PRIVATE *drv = (UGA_IO_PRIVATE *)UgaIo;
+  EFI_STATUS status;
+
+  status = UgaCheckKey(UgaIo);
+  if (status != EFI_SUCCESS)
+    return status;
+
+  *key = drv->keys[drv->key_rd];
+  drv->key_rd = (drv->key_rd + 1) % NBR_KEYS;
+  drv->key_count--;
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+UgaBlt(EFI_UNIX_UGA_IO_PROTOCOL *UgaIo,
+       IN  EFI_UGA_PIXEL                           *BltBuffer OPTIONAL,
+       IN  EFI_UGA_BLT_OPERATION                   BltOperation,
+       IN  UINTN                                   SourceX,
+       IN  UINTN                                   SourceY,
+       IN  UINTN                                   DestinationX,
+       IN  UINTN                                   DestinationY,
+       IN  UINTN                                   Width,
+       IN  UINTN                                   Height,
+       IN  UINTN                                   Delta OPTIONAL
+  )
+{
+  UGA_IO_PRIVATE *Private = (UGA_IO_PRIVATE *)UgaIo;
+  UINTN             DstY;
+  UINTN             SrcY;
+  UINTN             DstX;
+  UINTN             SrcX;
+  UINTN             Index;
+  EFI_UGA_PIXEL     *Blt;
+  UINT8             *Dst;
+  UINT8             *Src;
+  UINTN             Nbr;
+  unsigned long     Color;
+
+  //
+  //  Check bounds
+  //
+  if (BltOperation == EfiUgaVideoToBltBuffer
+      || BltOperation == EfiUgaVideoToVideo) {
+    //
+    // Source is Video.
+    //
+    if (SourceY + Height > Private->height) {
+      return EFI_INVALID_PARAMETER;
+    }
+
+    if (SourceX + Width > Private->width) {
+      return EFI_INVALID_PARAMETER;
+    }
+  }
+
+  if (BltOperation == EfiUgaBltBufferToVideo
+      || BltOperation == EfiUgaVideoToVideo
+      || BltOperation == EfiUgaVideoFill) {
+    //
+    // Destination is Video
+    //
+    if (DestinationY + Height > Private->height) {
+      return EFI_INVALID_PARAMETER;
+    }
+
+    if (DestinationX + Width > Private->width) {
+      return EFI_INVALID_PARAMETER;
+    }
+  }
+
+  switch (BltOperation) {
+  case EfiUgaVideoToBltBuffer:
+    Blt = BltBuffer;
+    Delta -= Width * sizeof (EFI_UGA_PIXEL);
+    for (SrcY = SourceY; SrcY < (Height + SourceY); SrcY++) {
+      for (SrcX = SourceX; SrcX < (Width + SourceX); SrcX++) {
+	*Blt++ = UgaColorToPixel(Private,
+				 XGetPixel(Private->image, SrcX, SrcY));
+      }
+      Blt = (EFI_UGA_PIXEL *) ((UINT8 *) Blt + Delta);
+    }
+    break;
+  case EfiUgaBltBufferToVideo:
+    Blt = BltBuffer;
+    Delta -= Width * sizeof (EFI_UGA_PIXEL);
+    for (DstY = DestinationY; DstY < (Height + DestinationY); DstY++) {
+      for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {
+	XPutPixel(Private->image, DstX, DstY, UgaPixelToColor(Private, *Blt));
+	Blt++;
+      }
+      Blt = (EFI_UGA_PIXEL *) ((UINT8 *) Blt + Delta);
+    }
+    break;
+  case EfiUgaVideoToVideo:
+    Dst = Private->image_data + (DestinationX << Private->pixel_shift)
+      + DestinationY * Private->line_bytes;
+    Src = Private->image_data + (SourceX << Private->pixel_shift)
+      + SourceY * Private->line_bytes;
+    Nbr = Width << Private->pixel_shift;
+    if (DestinationY < SourceY) {
+      for (Index = 0; Index < Height; Index++) {
+	memcpy (Dst, Src, Nbr);
+	Dst += Private->line_bytes;
+	Src += Private->line_bytes;
+      }
+    }
+    else {
+      Dst += (Height - 1) * Private->line_bytes;
+      Src += (Height - 1) * Private->line_bytes;
+      for (Index = 0; Index < Height; Index++) {
+	//
+	// Source and Destination Y may be equal, therefore Dst and Src may
+	// overlap.
+	//
+	memmove (Dst, Src, Nbr);
+	Dst -= Private->line_bytes;
+	Src -= Private->line_bytes;
+      }
+    }
+    break;
+  case EfiUgaVideoFill:
+    Color = UgaPixelToColor(Private, *BltBuffer);
+    for (DstY = DestinationY; DstY < (Height + DestinationY); DstY++) {
+      for (DstX = DestinationX; DstX < (Width + DestinationX); DstX++) {
+	XPutPixel(Private->image, DstX, DstY, Color);
+      }
+    }
+    break;
+  default:
+      return EFI_INVALID_PARAMETER;
+  }
+
+  //
+  //  Refresh screen.
+  //
+  switch (BltOperation) {
+  case EfiUgaVideoToVideo:
+    XCopyArea(Private->display, Private->win, Private->win, Private->gc,
+	      SourceX, SourceY, Width, Height, DestinationX, DestinationY);
+    while (1) {
+      XEvent ev;
+	  
+      XNextEvent (Private->display, &ev);
+      HandleEvent(Private, &ev);
+      if (ev.type == NoExpose || ev.type == GraphicsExpose)
+	break;
+    }
+    break;
+  case EfiUgaVideoFill:
+    Color = UgaPixelToColor(Private, *BltBuffer);
+    XSetForeground(Private->display, Private->gc, Color);
+    XFillRectangle(Private->display, Private->win, Private->gc,
+		   DestinationX, DestinationY, Width, Height);
+    break;
+  case EfiUgaBltBufferToVideo:
+    Redraw(Private, DestinationX, DestinationY, Width, Height);
+    break;
+  default:
+    break;
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+UgaCreate (EFI_UNIX_UGA_IO_PROTOCOL **Uga, CONST CHAR16 *Title)
+{
+  UGA_IO_PRIVATE *drv;
+  unsigned int border_width = 0;
+  char *display_name = NULL;
+  int title_len;
+
+  drv = (UGA_IO_PRIVATE *)
+    malloc (sizeof (UGA_IO_PRIVATE));
+  if (drv == NULL)
+    return EFI_OUT_OF_RESOURCES;
+
+  drv->UgaIo.UgaClose = UgaClose;
+  drv->UgaIo.UgaSize = UgaSize;
+  drv->UgaIo.UgaCheckKey = UgaCheckKey;
+  drv->UgaIo.UgaGetKey = UgaGetKey;
+  drv->UgaIo.UgaBlt = UgaBlt;
+
+  drv->key_count = 0;
+  drv->key_rd = 0;
+  drv->key_wr = 0;
+  drv->display = XOpenDisplay (display_name);
+  if (drv->display == NULL)
+    {
+      fprintf (stderr, "uga: cannot connect to X server %s\n",
+	       XDisplayName (display_name));
+      free (drv);
+      return EFI_DEVICE_ERROR;
+    }
+  drv->screen = DefaultScreen (drv->display);
+  drv->visual = DefaultVisual (drv->display, drv->screen);
+  drv->win = XCreateSimpleWindow
+	(drv->display, RootWindow (drv->display, drv->screen),
+	 0, 0, 4, 4, border_width,
+	 BlackPixel (drv->display, drv->screen),
+	 WhitePixel (drv->display, drv->screen));
+
+  drv->depth = DefaultDepth (drv->display, drv->screen);
+
+  /* Compute title len and convert to Ascii.  */
+  for (title_len = 0; Title[title_len] != 0; title_len++)
+    ;
+  {
+    char title[title_len + 1];
+    int i;
+    for (i = 0; i < title_len; i++)
+      title[i] = Title[i];
+    title[i] = 0;
+    
+    XStoreName (drv->display, drv->win, title);
+  }
+
+  XSelectInput (drv->display, drv->win,
+		ExposureMask | KeyPressMask);
+  drv->gc = DefaultGC (drv->display, drv->screen);
+
+  *Uga = (EFI_UNIX_UGA_IO_PROTOCOL *)drv;
+  return EFI_SUCCESS;
+}