unsigned int Wa, We, Ha, He;
unsigned int X, Y, HorDcm, VerDcm;
u32 reg;
- unsigned int mask_line_size;
tvn = zr->timing;
reg |= ZR36057_VDCR_Triton;
btwrite(reg, ZR36057_VDCR);
- /* (Ronald) don't write this if overlay_mask = NULL */
- if (zr->overlay_mask) {
- /* Write overlay clipping mask data, but don't enable overlay clipping */
- /* RJ: since this makes only sense on the screen, we use
- * zr->overlay_settings.width instead of video_width */
-
- mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
- reg = virt_to_bus(zr->overlay_mask);
- btwrite(reg, ZR36057_MMTR);
- reg = virt_to_bus(zr->overlay_mask + mask_line_size);
- btwrite(reg, ZR36057_MMBR);
- reg =
- mask_line_size - (zr->overlay_settings.width +
- 31) / 32;
- if (DispMode == 0)
- reg += mask_line_size;
- reg <<= ZR36057_OCR_MaskStride;
- btwrite(reg, ZR36057_OCR);
- }
-
zr36057_adjust_vfe(zr, zr->codec_mode);
}
-/*
- * Switch overlay on or off
- */
-
-void zr36057_overlay(struct zoran *zr, int on)
-{
- u32 reg;
-
- if (on) {
- /* do the necessary settings ... */
- btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */
-
- zr36057_set_vfe(zr,
- zr->overlay_settings.width,
- zr->overlay_settings.height,
- zr->overlay_settings.format);
-
- /* Start and length of each line MUST be 4-byte aligned.
- * This should be already checked before the call to this routine.
- * All error messages are internal driver checking only! */
-
- /* video display top and bottom registers */
- reg = (long)zr->vbuf_base +
- zr->overlay_settings.x *
- ((zr->overlay_settings.format->depth + 7) / 8) +
- zr->overlay_settings.y *
- zr->vbuf_bytesperline;
- btwrite(reg, ZR36057_VDTR);
- if (reg & 3)
- pci_err(zr->pci_dev, "zr36057_overlay() - video_address not aligned\n");
- if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
- reg += zr->vbuf_bytesperline;
- btwrite(reg, ZR36057_VDBR);
-
- /* video stride, status, and frame grab register */
- reg = zr->vbuf_bytesperline -
- zr->overlay_settings.width *
- ((zr->overlay_settings.format->depth + 7) / 8);
- if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
- reg += zr->vbuf_bytesperline;
- if (reg & 3)
- pci_err(zr->pci_dev, "zr36057_overlay() - video_stride not aligned\n");
- reg = (reg << ZR36057_VSSFGR_DispStride);
- reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */
- btwrite(reg, ZR36057_VSSFGR);
-
- /* Set overlay clipping */
- if (zr->overlay_settings.clipcount > 0)
- btor(ZR36057_OCR_OvlEnable, ZR36057_OCR);
-
- /* ... and switch it on */
- btor(ZR36057_VDCR_VidEn, ZR36057_VDCR);
- } else {
- /* Switch it off */
- btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
- }
-}
-
-/*
- * The overlay mask has one bit for each pixel on a scan line,
- * and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels.
- */
-
-void write_overlay_mask(struct zoran_fh *fh, struct v4l2_clip *vp, int count)
-{
- struct zoran *zr = fh->zr;
- unsigned int mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
- u32 *mask;
- int x, y, width, height;
- unsigned int i, j, k;
-
- /* fill mask with one bits */
- memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT);
-
- for (i = 0; i < count; ++i) {
- /* pick up local copy of clip */
- x = vp[i].c.left;
- y = vp[i].c.top;
- width = vp[i].c.width;
- height = vp[i].c.height;
-
- /* trim clips that extend beyond the window */
- if (x < 0) {
- width += x;
- x = 0;
- }
- if (y < 0) {
- height += y;
- y = 0;
- }
- if (x + width > zr->overlay_settings.width)
- width = zr->overlay_settings.width - x;
- if (y + height > zr->overlay_settings.height)
- height = zr->overlay_settings.height - y;
-
- /* ignore degenerate clips */
- if (height <= 0)
- continue;
- if (width <= 0)
- continue;
-
- /* apply clip for each scan line */
- for (j = 0; j < height; ++j) {
- /* reset bit for each pixel */
- /* this can be optimized later if need be */
- mask = fh->overlay_mask + (y + j) * mask_line_size;
- for (k = 0; k < width; ++k) {
- mask[(x + k) / 32] &=
- ~((u32)1 << (x + k) % 32);
- }
- }
- }
-}
-
/* Enable/Disable uncompressed memory grabbing of the 36057 */
void zr36057_set_memgrab(struct zoran *zr, int mode)
{
zr->v4l_grab_frame = NO_GRAB_ACTIVE;
/* re-enable grabbing to screen if it was running */
- if (zr->v4l_overlay_active) {
- zr36057_overlay(zr, 1);
- } else {
- btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
- btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
- }
+ btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
+ btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
}
}
projects / linux-2.6-microblaze.git / blobdiff