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audk/EdkUnixPkg/Sec/UgaX11.c

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#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 = (char*)drv->image_data;
drv->image->data = (char*)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, (char *)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;
memset (&res, 0, sizeof (EFI_UGA_PIXEL));
/* 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 *)
calloc (1, 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;
}
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