Re: [PATCH v3 17/23] camss: vfe: Add interface for scaling
Hi Todor, Todor Tomov wrote: > Hi Sakari, > > Thank you for review. > > On 20.07.2017 18:20, Sakari Ailus wrote: >> Hi Todor, >> >> On Mon, Jul 17, 2017 at 01:33:43PM +0300, Todor Tomov wrote: >>> Add compose selection ioctls to handle scaling configuration. >>> >>> Signed-off-by: Todor Tomov >>> --- >>> drivers/media/platform/qcom/camss-8x16/camss-vfe.c | 189 >>> - >>> drivers/media/platform/qcom/camss-8x16/camss-vfe.h | 1 + >>> 2 files changed, 188 insertions(+), 2 deletions(-) >>> >>> diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >>> b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >>> index 327f158..8ec6ce7 100644 >>> --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >>> +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >>> @@ -211,6 +211,8 @@ >>> #define CAMIF_TIMEOUT_SLEEP_US 1000 >>> #define CAMIF_TIMEOUT_ALL_US 100 >>> >>> +#define SCALER_RATIO_MAX 16 >>> + >>> static const u32 vfe_formats[] = { >>> MEDIA_BUS_FMT_UYVY8_2X8, >>> MEDIA_BUS_FMT_VYUY8_2X8, >>> @@ -1905,6 +1907,25 @@ __vfe_get_format(struct vfe_line *line, >>> return &line->fmt[pad]; >>> } >>> >>> +/* >>> + * __vfe_get_compose - Get pointer to compose selection structure >>> + * @line: VFE line >>> + * @cfg: V4L2 subdev pad configuration >>> + * @which: TRY or ACTIVE format >>> + * >>> + * Return pointer to TRY or ACTIVE compose rectangle structure >>> + */ >>> +static struct v4l2_rect * >>> +__vfe_get_compose(struct vfe_line *line, >>> + struct v4l2_subdev_pad_config *cfg, >>> + enum v4l2_subdev_format_whence which) >>> +{ >>> + if (which == V4L2_SUBDEV_FORMAT_TRY) >>> + return v4l2_subdev_get_try_compose(&line->subdev, cfg, >>> + MSM_VFE_PAD_SINK); >>> + >>> + return &line->compose; >>> +} >>> >>> /* >>> * vfe_try_format - Handle try format by pad subdev method >>> @@ -1951,7 +1972,14 @@ static void vfe_try_format(struct vfe_line *line, >>> *fmt = *__vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, >>> which); >>> >>> - if (line->id == VFE_LINE_PIX) >>> + if (line->id == VFE_LINE_PIX) { >>> + struct v4l2_rect *rect; >>> + >>> + rect = __vfe_get_compose(line, cfg, which); >>> + >>> + fmt->width = rect->width; >>> + fmt->height = rect->height; >>> + >>> switch (fmt->code) { >>> case MEDIA_BUS_FMT_YUYV8_2X8: >>> if (code == MEDIA_BUS_FMT_YUYV8_1_5X8) >>> @@ -1979,6 +2007,7 @@ static void vfe_try_format(struct vfe_line *line, >>> fmt->code = MEDIA_BUS_FMT_VYUY8_2X8; >>> break; >>> } >>> + } >>> >>> break; >>> } >>> @@ -1987,6 +2016,50 @@ static void vfe_try_format(struct vfe_line *line, >>> } >>> >>> /* >>> + * vfe_try_compose - Handle try compose selection by pad subdev method >>> + * @line: VFE line >>> + * @cfg: V4L2 subdev pad configuration >>> + * @rect: pointer to v4l2 rect structure >>> + * @which: wanted subdev format >>> + */ >>> +static void vfe_try_compose(struct vfe_line *line, >>> + struct v4l2_subdev_pad_config *cfg, >>> + struct v4l2_rect *rect, >>> + enum v4l2_subdev_format_whence which) >>> +{ >>> + struct v4l2_mbus_framefmt *fmt; >>> + >>> + rect->width = rect->width - rect->left; >>> + rect->left = 0; >> >> This is the compose rectangle i.e. left and top should be zero (unless it's >> about composing on e.g. a frame buffer). No need to decrement from width; >> similarly for height below. > > Yes, it is not composing, but does the user know that? If left and top are > set, it makes sense to keep the rectangle size unchanged I think - actually > decrement width and height (and then clear left and top). The API documentation tells these values are zero. If the user specifies non-zero values then I don't think that they should have an effect. This behaviour is in line with other drivers AFAIK. > >> >>> + rect->height = rect->height - rect->top; >>> + rect->top = 0; >>> + >>> + fmt = __vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, which); >>> + >>> + if (rect->width > fmt->width) >>> + rect->width = fmt->width; >>> + >>> + if (rect->height > fmt->height) >>> + rect->height = fmt->height; >>> + >>> + if (fmt->width > rect->width * SCALER_RATIO_MAX) >>> + rect->width = (fmt->width + SCALER_RATIO_MAX - 1) / >>> + SCALER_RATIO_MAX; >>> + >>> + rect->width &= ~0x1; >>> + >>> + if (fmt->height > rect->height * SCALER_RATIO_MAX) >>> + rect->height = (fmt->height + SCALER_RATIO_MAX - 1) / >>> + SCALER_RATIO_MAX; >>>
Re: [PATCH v3 17/23] camss: vfe: Add interface for scaling
Hi Sakari, Thank you for review. On 20.07.2017 18:20, Sakari Ailus wrote: > Hi Todor, > > On Mon, Jul 17, 2017 at 01:33:43PM +0300, Todor Tomov wrote: >> Add compose selection ioctls to handle scaling configuration. >> >> Signed-off-by: Todor Tomov >> --- >> drivers/media/platform/qcom/camss-8x16/camss-vfe.c | 189 >> - >> drivers/media/platform/qcom/camss-8x16/camss-vfe.h | 1 + >> 2 files changed, 188 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >> b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >> index 327f158..8ec6ce7 100644 >> --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >> +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c >> @@ -211,6 +211,8 @@ >> #define CAMIF_TIMEOUT_SLEEP_US 1000 >> #define CAMIF_TIMEOUT_ALL_US 100 >> >> +#define SCALER_RATIO_MAX 16 >> + >> static const u32 vfe_formats[] = { >> MEDIA_BUS_FMT_UYVY8_2X8, >> MEDIA_BUS_FMT_VYUY8_2X8, >> @@ -1905,6 +1907,25 @@ __vfe_get_format(struct vfe_line *line, >> return &line->fmt[pad]; >> } >> >> +/* >> + * __vfe_get_compose - Get pointer to compose selection structure >> + * @line: VFE line >> + * @cfg: V4L2 subdev pad configuration >> + * @which: TRY or ACTIVE format >> + * >> + * Return pointer to TRY or ACTIVE compose rectangle structure >> + */ >> +static struct v4l2_rect * >> +__vfe_get_compose(struct vfe_line *line, >> + struct v4l2_subdev_pad_config *cfg, >> + enum v4l2_subdev_format_whence which) >> +{ >> +if (which == V4L2_SUBDEV_FORMAT_TRY) >> +return v4l2_subdev_get_try_compose(&line->subdev, cfg, >> + MSM_VFE_PAD_SINK); >> + >> +return &line->compose; >> +} >> >> /* >> * vfe_try_format - Handle try format by pad subdev method >> @@ -1951,7 +1972,14 @@ static void vfe_try_format(struct vfe_line *line, >> *fmt = *__vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, >> which); >> >> -if (line->id == VFE_LINE_PIX) >> +if (line->id == VFE_LINE_PIX) { >> +struct v4l2_rect *rect; >> + >> +rect = __vfe_get_compose(line, cfg, which); >> + >> +fmt->width = rect->width; >> +fmt->height = rect->height; >> + >> switch (fmt->code) { >> case MEDIA_BUS_FMT_YUYV8_2X8: >> if (code == MEDIA_BUS_FMT_YUYV8_1_5X8) >> @@ -1979,6 +2007,7 @@ static void vfe_try_format(struct vfe_line *line, >> fmt->code = MEDIA_BUS_FMT_VYUY8_2X8; >> break; >> } >> +} >> >> break; >> } >> @@ -1987,6 +2016,50 @@ static void vfe_try_format(struct vfe_line *line, >> } >> >> /* >> + * vfe_try_compose - Handle try compose selection by pad subdev method >> + * @line: VFE line >> + * @cfg: V4L2 subdev pad configuration >> + * @rect: pointer to v4l2 rect structure >> + * @which: wanted subdev format >> + */ >> +static void vfe_try_compose(struct vfe_line *line, >> +struct v4l2_subdev_pad_config *cfg, >> +struct v4l2_rect *rect, >> +enum v4l2_subdev_format_whence which) >> +{ >> +struct v4l2_mbus_framefmt *fmt; >> + >> +rect->width = rect->width - rect->left; >> +rect->left = 0; > > This is the compose rectangle i.e. left and top should be zero (unless it's > about composing on e.g. a frame buffer). No need to decrement from width; > similarly for height below. Yes, it is not composing, but does the user know that? If left and top are set, it makes sense to keep the rectangle size unchanged I think - actually decrement width and height (and then clear left and top). > >> +rect->height = rect->height - rect->top; >> +rect->top = 0; >> + >> +fmt = __vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, which); >> + >> +if (rect->width > fmt->width) >> +rect->width = fmt->width; >> + >> +if (rect->height > fmt->height) >> +rect->height = fmt->height; >> + >> +if (fmt->width > rect->width * SCALER_RATIO_MAX) >> +rect->width = (fmt->width + SCALER_RATIO_MAX - 1) / >> +SCALER_RATIO_MAX; >> + >> +rect->width &= ~0x1; >> + >> +if (fmt->height > rect->height * SCALER_RATIO_MAX) >> +rect->height = (fmt->height + SCALER_RATIO_MAX - 1) / >> +SCALER_RATIO_MAX; >> + >> +if (rect->width < 16) >> +rect->width = 16; >> + >> +if (rect->height < 4) >> +rect->height = 4; >> +} >> + -- Best regards, Todor Tomov
Re: [PATCH v3 17/23] camss: vfe: Add interface for scaling
Hi Todor, On Mon, Jul 17, 2017 at 01:33:43PM +0300, Todor Tomov wrote: > Add compose selection ioctls to handle scaling configuration. > > Signed-off-by: Todor Tomov > --- > drivers/media/platform/qcom/camss-8x16/camss-vfe.c | 189 > - > drivers/media/platform/qcom/camss-8x16/camss-vfe.h | 1 + > 2 files changed, 188 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c > b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c > index 327f158..8ec6ce7 100644 > --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c > +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c > @@ -211,6 +211,8 @@ > #define CAMIF_TIMEOUT_SLEEP_US 1000 > #define CAMIF_TIMEOUT_ALL_US 100 > > +#define SCALER_RATIO_MAX 16 > + > static const u32 vfe_formats[] = { > MEDIA_BUS_FMT_UYVY8_2X8, > MEDIA_BUS_FMT_VYUY8_2X8, > @@ -1905,6 +1907,25 @@ __vfe_get_format(struct vfe_line *line, > return &line->fmt[pad]; > } > > +/* > + * __vfe_get_compose - Get pointer to compose selection structure > + * @line: VFE line > + * @cfg: V4L2 subdev pad configuration > + * @which: TRY or ACTIVE format > + * > + * Return pointer to TRY or ACTIVE compose rectangle structure > + */ > +static struct v4l2_rect * > +__vfe_get_compose(struct vfe_line *line, > + struct v4l2_subdev_pad_config *cfg, > + enum v4l2_subdev_format_whence which) > +{ > + if (which == V4L2_SUBDEV_FORMAT_TRY) > + return v4l2_subdev_get_try_compose(&line->subdev, cfg, > +MSM_VFE_PAD_SINK); > + > + return &line->compose; > +} > > /* > * vfe_try_format - Handle try format by pad subdev method > @@ -1951,7 +1972,14 @@ static void vfe_try_format(struct vfe_line *line, > *fmt = *__vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, >which); > > - if (line->id == VFE_LINE_PIX) > + if (line->id == VFE_LINE_PIX) { > + struct v4l2_rect *rect; > + > + rect = __vfe_get_compose(line, cfg, which); > + > + fmt->width = rect->width; > + fmt->height = rect->height; > + > switch (fmt->code) { > case MEDIA_BUS_FMT_YUYV8_2X8: > if (code == MEDIA_BUS_FMT_YUYV8_1_5X8) > @@ -1979,6 +2007,7 @@ static void vfe_try_format(struct vfe_line *line, > fmt->code = MEDIA_BUS_FMT_VYUY8_2X8; > break; > } > + } > > break; > } > @@ -1987,6 +2016,50 @@ static void vfe_try_format(struct vfe_line *line, > } > > /* > + * vfe_try_compose - Handle try compose selection by pad subdev method > + * @line: VFE line > + * @cfg: V4L2 subdev pad configuration > + * @rect: pointer to v4l2 rect structure > + * @which: wanted subdev format > + */ > +static void vfe_try_compose(struct vfe_line *line, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_rect *rect, > + enum v4l2_subdev_format_whence which) > +{ > + struct v4l2_mbus_framefmt *fmt; > + > + rect->width = rect->width - rect->left; > + rect->left = 0; This is the compose rectangle i.e. left and top should be zero (unless it's about composing on e.g. a frame buffer). No need to decrement from width; similarly for height below. > + rect->height = rect->height - rect->top; > + rect->top = 0; > + > + fmt = __vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, which); > + > + if (rect->width > fmt->width) > + rect->width = fmt->width; > + > + if (rect->height > fmt->height) > + rect->height = fmt->height; > + > + if (fmt->width > rect->width * SCALER_RATIO_MAX) > + rect->width = (fmt->width + SCALER_RATIO_MAX - 1) / > + SCALER_RATIO_MAX; > + > + rect->width &= ~0x1; > + > + if (fmt->height > rect->height * SCALER_RATIO_MAX) > + rect->height = (fmt->height + SCALER_RATIO_MAX - 1) / > + SCALER_RATIO_MAX; > + > + if (rect->width < 16) > + rect->width = 16; > + > + if (rect->height < 4) > + rect->height = 4; > +} > + > +/* > * vfe_enum_mbus_code - Handle pixel format enumeration > * @sd: VFE V4L2 subdevice > * @cfg: V4L2 subdev pad configuration > @@ -2081,6 +2154,10 @@ static int vfe_get_format(struct v4l2_subdev *sd, > return 0; > } > > +static int vfe_set_selection(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_selection *sel); > + > /* > * vfe_set_format - Handle set format by pads subdev method > * @sd: VFE V4L2 subdevice > @@ -2103,20