From 7efa934859d354d8c331d2c99a6126020ce0310d Mon Sep 17 00:00:00 2001 From: Dave Stevenson <6by9@users.noreply.github.com> Date: Thu, 10 May 2018 12:42:07 -0700 Subject: [PATCH 367/454] staging: bcm2835-camera: Skip ISP pass to eliminate padding. commit dd9bb50522733befceac9cbe0b68f5ad4e5106ff upstream. Interleaved RGB and single plane YUV formats can be delivered by the GPU without the secondary step of removing padding, as the bytesperline field can be set appropriately. Planar YUV needs the GPU to still remove padding, as there is no way to report that there is padding between the planes (ie on the height). The multi-planar formats are NOT applicable, as there is no easy way to make them contiguous in memory (ie one large allocation that gets broken up). The whole task is passed across to videobuf2 which has no notion of that requirement. v2: Changes by anholt from the downstream driver: Flag two more planar formats as needing padding removal, and remove broken userspace workaround. Signed-off-by: Dave Stevenson Signed-off-by: Eric Anholt Signed-off-by: Greg Kroah-Hartman --- .../bcm2835-camera/bcm2835-camera.c | 44 ++++++++++++++----- .../bcm2835-camera/mmal-common.h | 3 ++ 2 files changed, 35 insertions(+), 12 deletions(-) --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c @@ -88,6 +88,7 @@ static struct mmal_fmt formats[] = { .depth = 12, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 1, + .remove_padding = 1, }, { .name = "4:2:2, packed, YUYV", @@ -97,6 +98,7 @@ static struct mmal_fmt formats[] = { .depth = 16, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 2, + .remove_padding = 0, }, { .name = "RGB24 (LE)", @@ -106,6 +108,7 @@ static struct mmal_fmt formats[] = { .depth = 24, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 3, + .remove_padding = 0, }, { .name = "JPEG", @@ -115,6 +118,7 @@ static struct mmal_fmt formats[] = { .depth = 8, .mmal_component = MMAL_COMPONENT_IMAGE_ENCODE, .ybbp = 0, + .remove_padding = 0, }, { .name = "H264", @@ -124,6 +128,7 @@ static struct mmal_fmt formats[] = { .depth = 8, .mmal_component = MMAL_COMPONENT_VIDEO_ENCODE, .ybbp = 0, + .remove_padding = 0, }, { .name = "MJPEG", @@ -133,6 +138,7 @@ static struct mmal_fmt formats[] = { .depth = 8, .mmal_component = MMAL_COMPONENT_VIDEO_ENCODE, .ybbp = 0, + .remove_padding = 0, }, { .name = "4:2:2, packed, YVYU", @@ -142,6 +148,7 @@ static struct mmal_fmt formats[] = { .depth = 16, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 2, + .remove_padding = 0, }, { .name = "4:2:2, packed, VYUY", @@ -151,6 +158,7 @@ static struct mmal_fmt formats[] = { .depth = 16, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 2, + .remove_padding = 0, }, { .name = "4:2:2, packed, UYVY", @@ -160,6 +168,7 @@ static struct mmal_fmt formats[] = { .depth = 16, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 2, + .remove_padding = 0, }, { .name = "4:2:0, planar, NV12", @@ -169,6 +178,7 @@ static struct mmal_fmt formats[] = { .depth = 12, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 1, + .remove_padding = 1, }, { .name = "RGB24 (BE)", @@ -178,6 +188,7 @@ static struct mmal_fmt formats[] = { .depth = 24, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 3, + .remove_padding = 0, }, { .name = "4:2:0, planar, YVU", @@ -187,6 +198,7 @@ static struct mmal_fmt formats[] = { .depth = 12, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 1, + .remove_padding = 1, }, { .name = "4:2:0, planar, NV21", @@ -196,6 +208,7 @@ static struct mmal_fmt formats[] = { .depth = 12, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 1, + .remove_padding = 1, }, { .name = "RGB32 (BE)", @@ -205,6 +218,7 @@ static struct mmal_fmt formats[] = { .depth = 32, .mmal_component = MMAL_COMPONENT_CAMERA, .ybbp = 4, + .remove_padding = 0, }, }; @@ -962,9 +976,19 @@ static int vidioc_try_fmt_vid_cap(struct &f->fmt.pix.height, MIN_HEIGHT, dev->max_height, 1, 0); f->fmt.pix.bytesperline = f->fmt.pix.width * mfmt->ybbp; + if (!mfmt->remove_padding) { + int align_mask = ((32 * mfmt->depth) >> 3) - 1; + /* GPU isn't removing padding, so stride is aligned to 32 */ + f->fmt.pix.bytesperline = + (f->fmt.pix.bytesperline + align_mask) & ~align_mask; + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Not removing padding, so bytes/line = %d, " + "(align_mask %d)\n", + f->fmt.pix.bytesperline, align_mask); + } /* Image buffer has to be padded to allow for alignment, even though - * we then remove that padding before delivering the buffer. + * we sometimes then remove that padding before delivering the buffer. */ f->fmt.pix.sizeimage = ((f->fmt.pix.height + 15) & ~15) * (((f->fmt.pix.width + 31) & ~31) * mfmt->depth) >> 3; @@ -997,6 +1021,7 @@ static int mmal_setup_components(struct struct vchiq_mmal_port *port = NULL, *camera_port = NULL; struct vchiq_mmal_component *encode_component = NULL; struct mmal_fmt *mfmt = get_format(f); + u32 remove_padding; BUG_ON(!mfmt); @@ -1065,6 +1090,12 @@ static int mmal_setup_components(struct camera_port->format.encoding = MMAL_ENCODING_RGB24; } + remove_padding = mfmt->remove_padding; + vchiq_mmal_port_parameter_set(dev->instance, + camera_port, + MMAL_PARAMETER_NO_IMAGE_PADDING, + &remove_padding, sizeof(remove_padding)); + camera_port->format.encoding_variant = 0; camera_port->es.video.width = f->fmt.pix.width; camera_port->es.video.height = f->fmt.pix.height; @@ -1542,7 +1573,6 @@ static int __init mmal_init(struct bm283 { int ret; struct mmal_es_format_local *format; - u32 bool_true = 1; u32 supported_encodings[MAX_SUPPORTED_ENCODINGS]; int param_size; struct vchiq_mmal_component *camera; @@ -1626,11 +1656,6 @@ static int __init mmal_init(struct bm283 format->es->video.frame_rate.num = 0; /* Rely on fps_range */ format->es->video.frame_rate.den = 1; - vchiq_mmal_port_parameter_set(dev->instance, - &camera->output[MMAL_CAMERA_PORT_VIDEO], - MMAL_PARAMETER_NO_IMAGE_PADDING, - &bool_true, sizeof(bool_true)); - format = &camera->output[MMAL_CAMERA_PORT_CAPTURE].format; format->encoding = MMAL_ENCODING_OPAQUE; @@ -1652,11 +1677,6 @@ static int __init mmal_init(struct bm283 dev->capture.enc_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH; dev->capture.enc_level = V4L2_MPEG_VIDEO_H264_LEVEL_4_0; - vchiq_mmal_port_parameter_set(dev->instance, - &camera->output[MMAL_CAMERA_PORT_CAPTURE], - MMAL_PARAMETER_NO_IMAGE_PADDING, - &bool_true, sizeof(bool_true)); - /* get the preview component ready */ ret = vchiq_mmal_component_init( dev->instance, "ril.video_render", --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h @@ -31,6 +31,9 @@ struct mmal_fmt { int depth; u32 mmal_component; /* MMAL component index to be used to encode */ u32 ybbp; /* depth of first Y plane for planar formats */ + bool remove_padding; /* Does the GPU have to remove padding, + * or can we do hide padding via bytesperline. + */ }; /* buffer for one video frame */