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Subject: [media] vivid: fix test pattern movement for V4L2_FIELD_ALTERNATE Author: Hans Verkuil <[email protected]> Date: Sat Mar 7 12:38:42 2015 -0300 The successive TOP/BOTTOM fields did not move as they should: only every other field actually changed position. The cause was that the tpg needs to know if it is dealing with a FIELD_ALTERNATE case since that requires slightly different handling. So tell the TPG whether or not the field setting is for the ALTERNATE case or not. Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/platform/vivid/vivid-kthread-cap.c | 3 ++- drivers/media/platform/vivid/vivid-tpg.c | 4 +++- drivers/media/platform/vivid/vivid-tpg.h | 4 +++- drivers/media/platform/vivid/vivid-vid-cap.c | 5 ++++- 4 files changed, 12 insertions(+), 4 deletions(-) --- http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/?id=43047f6b7467c2c9e3ef0b8113469c40b0b78cc3 diff --git a/drivers/media/platform/vivid/vivid-kthread-cap.c b/drivers/media/platform/vivid/vivid-kthread-cap.c index 9898072..9976d45 100644 --- a/drivers/media/platform/vivid/vivid-kthread-cap.c +++ b/drivers/media/platform/vivid/vivid-kthread-cap.c @@ -436,7 +436,8 @@ static void vivid_fillbuff(struct vivid_dev *dev, struct vivid_buffer *buf) } else { buf->vb.v4l2_buf.field = dev->field_cap; } - tpg_s_field(&dev->tpg, buf->vb.v4l2_buf.field); + tpg_s_field(&dev->tpg, buf->vb.v4l2_buf.field, + dev->field_cap == V4L2_FIELD_ALTERNATE); tpg_s_perc_fill_blank(&dev->tpg, dev->must_blank[buf->vb.v4l2_buf.index]); vivid_precalc_copy_rects(dev); diff --git a/drivers/media/platform/vivid/vivid-tpg.c b/drivers/media/platform/vivid/vivid-tpg.c index acb73b6..f4e9108 100644 --- a/drivers/media/platform/vivid/vivid-tpg.c +++ b/drivers/media/platform/vivid/vivid-tpg.c @@ -1413,7 +1413,9 @@ void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf) linestart_older += line_offset; linestart_newer += line_offset; } - if (is_60hz) { + if (tpg->field_alternate) { + linestart_top = linestart_bottom = linestart_older; + } else if (is_60hz) { linestart_top = linestart_newer; linestart_bottom = linestart_older; } else { diff --git a/drivers/media/platform/vivid/vivid-tpg.h b/drivers/media/platform/vivid/vivid-tpg.h index bd8b1c7..8100425 100644 --- a/drivers/media/platform/vivid/vivid-tpg.h +++ b/drivers/media/platform/vivid/vivid-tpg.h @@ -98,6 +98,7 @@ struct tpg_data { /* Scaled output frame size */ unsigned scaled_width; u32 field; + bool field_alternate; /* crop coordinates are frame-based */ struct v4l2_rect crop; /* compose coordinates are format-based */ @@ -348,9 +349,10 @@ static inline void tpg_s_buf_height(struct tpg_data *tpg, unsigned h) tpg->buf_height = h; } -static inline void tpg_s_field(struct tpg_data *tpg, unsigned field) +static inline void tpg_s_field(struct tpg_data *tpg, unsigned field, bool alternate) { tpg->field = field; + tpg->field_alternate = alternate; } static inline void tpg_s_perc_fill(struct tpg_data *tpg, diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c index 49f79a0..d41ac44 100644 --- a/drivers/media/platform/vivid/vivid-vid-cap.c +++ b/drivers/media/platform/vivid/vivid-vid-cap.c @@ -733,7 +733,10 @@ int vivid_s_fmt_vid_cap(struct file *file, void *priv, if (tpg_g_planes(&dev->tpg) > 1) tpg_s_bytesperline(&dev->tpg, 1, mp->plane_fmt[1].bytesperline); dev->field_cap = mp->field; - tpg_s_field(&dev->tpg, dev->field_cap); + if (dev->field_cap == V4L2_FIELD_ALTERNATE) + tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true); + else + tpg_s_field(&dev->tpg, dev->field_cap, false); tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap); tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc); if (vivid_is_sdtv_cap(dev)) _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
