Bool
fakeMapFramebuffer (KdScreenInfo *screen)
{
FakeScrPriv *scrpriv = screen->driver;
KdPointerMatrix m;
FakePriv *priv = screen->card->driver;
scrpriv->shadow = FALSE;
KdComputePointerMatrix (&m, scrpriv->randr, screen->width, screen->height);
KdSetPointerMatrix (&m);
priv->bytes_per_line = ((screen->width * screen->fb.bitsPerPixel + 31) >> 5) << 2;
free(priv->base);
priv->base = malloc (priv->bytes_per_line * screen->height);
if (scrpriv->shadow)
{
if (!KdShadowFbAlloc (screen, scrpriv->randr & (RR_Rotate_90|RR_Rotate_270)))
return FALSE;
}
else
{
screen->fb.byteStride = priv->bytes_per_line;
screen->fb.pixelStride = (priv->bytes_per_line * 8/
screen->fb.bitsPerPixel);
screen->fb.frameBuffer = (CARD8 *) (priv->base);
}
return TRUE;
}
Bool
sdlMapFramebuffer (KdScreenInfo *screen)
{
SdlDriver *driver = screen->driver;
KdPointerMatrix m;
if (driver->randr != RR_Rotate_0)
driver->shadow = TRUE;
else
driver->shadow = FALSE;
KdComputePointerMatrix (&m, driver->randr, screen->width, screen->height);
KdSetPointerMatrix (&m);
screen->width = driver->screen->w;
screen->height = driver->screen->h;
printf("%s: shadow %d\n", __func__, driver->shadow);
if (driver->shadow)
{
if (!KdShadowFbAlloc (screen,
driver->randr & (RR_Rotate_90|RR_Rotate_270)))
return FALSE;
}
else
{
screen->fb.byteStride = driver->screen->pitch;
screen->fb.pixelStride = driver->screen->w;
screen->fb.frameBuffer = (CARD8 *) (driver->screen->pixels);
}
return TRUE;
}
Bool
ephyrMapFramebuffer(KdScreenInfo * screen)
{
EphyrScrPriv *scrpriv = screen->driver;
EphyrPriv *priv = screen->card->driver;
KdPointerMatrix m;
int buffer_height;
EPHYR_LOG("screen->width: %d, screen->height: %d index=%d",
screen->width, screen->height, screen->mynum);
/*
* Use the rotation last applied to ourselves (in the Xephyr case the fb
* coordinate system moves independently of the pointer coordiante system).
*/
KdComputePointerMatrix(&m, ephyrRandr, screen->width, screen->height);
KdSetPointerMatrix(&m);
buffer_height = ephyrBufferHeight(screen);
priv->base =
hostx_screen_init(screen, screen->x, screen->y,
screen->width, screen->height, buffer_height,
&priv->bytes_per_line, &screen->fb.bitsPerPixel);
if ((scrpriv->randr & RR_Rotate_0) && !(scrpriv->randr & RR_Reflect_All)) {
scrpriv->shadow = FALSE;
screen->fb.byteStride = priv->bytes_per_line;
screen->fb.pixelStride = screen->width;
screen->fb.frameBuffer = (CARD8 *) (priv->base);
}
else {
/* Rotated/Reflected so we need to use shadow fb */
scrpriv->shadow = TRUE;
EPHYR_LOG("allocing shadow");
KdShadowFbAlloc(screen,
scrpriv->randr & (RR_Rotate_90 | RR_Rotate_270));
}
return TRUE;
}