diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-03-02 13:57:25 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-03-20 00:29:11 +0100 |
| commit | 3c161e82dfbd3ee67a1548691412d04d04ad6a37 (patch) | |
| tree | 108d5d3937d7c9436070d141450208cb4daa2360 /drivers/media/pci/bt8xx/btcx-risc.h | |
| parent | 50a5677d535e9941ed1dfe45f812792d78a63d35 (diff) | |
media: bttv: drop overlay support
Destructive overlay support (i.e. where the video frame is DMA-ed
straight into a framebuffer) is effectively dead. It was a
necessary evil in the early days when computers were not fast enough
to copy SDTV video frames around, but today that's no longer a problem.
It requires access to the framebuffer memory, which is a bad idea and
very hard to do safely. In addition, in drm it is today almost
impossible to get hold of the framebuffer address.
So drop support for this.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/pci/bt8xx/btcx-risc.h')
| -rw-r--r-- | drivers/media/pci/bt8xx/btcx-risc.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/media/pci/bt8xx/btcx-risc.h b/drivers/media/pci/bt8xx/btcx-risc.h index dc774a64cd1f..6ac79a15776f 100644 --- a/drivers/media/pci/bt8xx/btcx-risc.h +++ b/drivers/media/pci/bt8xx/btcx-risc.h @@ -16,12 +16,3 @@ int btcx_riscmem_alloc(struct pci_dev *pci, unsigned int size); void btcx_riscmem_free(struct pci_dev *pci, struct btcx_riscmem *risc); - -int btcx_screen_clips(int swidth, int sheight, struct v4l2_rect *win, - struct v4l2_clip *clips, unsigned int n); -int btcx_align(struct v4l2_rect *win, struct v4l2_clip *clips, - unsigned int n, int mask); -void btcx_sort_clips(struct v4l2_clip *clips, unsigned int nclips); -void btcx_calc_skips(int line, int width, int *maxy, - struct btcx_skiplist *skips, unsigned int *nskips, - const struct v4l2_clip *clips, unsigned int nclips); |