From patchwork Tue Mar 11 08:33:46 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Archit Taneja X-Patchwork-Id: 22979 X-Patchwork-Delegate: kamil@wypas.org Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1WNI9h-0001DF-Qk; Tue, 11 Mar 2014 09:35:22 +0100 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.72/mailfrontend-7) with esmtp id 1WNI9f-0006EE-0v; Tue, 11 Mar 2014 09:35:21 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754032AbaCKIfM (ORCPT + 1 other); Tue, 11 Mar 2014 04:35:12 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:45753 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753866AbaCKIfH (ORCPT ); Tue, 11 Mar 2014 04:35:07 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id s2B8Z4B0005094; Tue, 11 Mar 2014 03:35:04 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id s2B8Z4YI026151; Tue, 11 Mar 2014 03:35:04 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.3.174.1; Tue, 11 Mar 2014 03:35:04 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id s2B8Z4xu027412; Tue, 11 Mar 2014 03:35:04 -0500 Received: from localhost (a0393947pc.apr.dhcp.ti.com [172.24.145.166] (may be forged)) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id s2B8Z2t02042; Tue, 11 Mar 2014 03:35:02 -0500 (CDT) From: Archit Taneja To: , CC: , , Archit Taneja Subject: [PATCH v3 07/14] v4l: ti-vpe: Add selection API in VPE driver Date: Tue, 11 Mar 2014 14:03:46 +0530 Message-ID: <1394526833-24805-8-git-send-email-archit@ti.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1394526833-24805-1-git-send-email-archit@ti.com> References: <1393922965-15967-1-git-send-email-archit@ti.com> <1394526833-24805-1-git-send-email-archit@ti.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2014.3.11.82417 X-PMX-Spam: Gauge=IIIIIIIII, Probability=9%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, MSGID_ADDED_BY_MTA 0.05, BODY_SIZE_5000_5999 0, BODY_SIZE_7000_LESS 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __CT 0, __CT_TEXT_PLAIN 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __MULTIPLE_RCPTS_CC_X2 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_NO_WWW 0, __URI_NS ' Add selection ioctl ops. For VPE, cropping makes sense only for the input to VPE(or V4L2_BUF_TYPE_VIDEO_OUTPUT/MPLANE buffers) and composing makes sense only for the output of VPE(or V4L2_BUF_TYPE_VIDEO_CAPTURE/MPLANE buffers). For the CAPTURE type, V4L2_SEL_TGT_COMPOSE results in VPE writing the output in a rectangle within the capture buffer. For the OUTPUT type, V4L2_SEL_TGT_CROP results in selecting a rectangle region within the source buffer. Setting the crop/compose rectangles should successfully result in re-configuration of registers which are affected when either source or destination dimensions change, set_srcdst_params() is called for this purpose. Signed-off-by: Archit Taneja --- drivers/media/platform/ti-vpe/vpe.c | 141 ++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index ece9b96..4abb85c 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -410,8 +410,10 @@ static struct vpe_q_data *get_q_data(struct vpe_ctx *ctx, { switch (type) { case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT: return &ctx->q_data[Q_DATA_SRC]; case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + case V4L2_BUF_TYPE_VIDEO_CAPTURE: return &ctx->q_data[Q_DATA_DST]; default: BUG(); @@ -1587,6 +1589,142 @@ static int vpe_s_fmt(struct file *file, void *priv, struct v4l2_format *f) return set_srcdst_params(ctx); } +static int __vpe_try_selection(struct vpe_ctx *ctx, struct v4l2_selection *s) +{ + struct vpe_q_data *q_data; + + if ((s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)) + return -EINVAL; + + q_data = get_q_data(ctx, s->type); + if (!q_data) + return -EINVAL; + + switch (s->target) { + case V4L2_SEL_TGT_COMPOSE: + /* + * COMPOSE target is only valid for capture buffer type, for + * output buffer type, assign existing crop parameters to the + * selection rectangle + */ + if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + break; + + s->r = q_data->c_rect; + return 0; + + case V4L2_SEL_TGT_CROP: + /* + * CROP target is only valid for output buffer type, for capture + * buffer type, assign existing compose parameters to the + * selection rectangle + */ + if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + break; + + s->r = q_data->c_rect; + return 0; + + /* + * bound and default crop/compose targets are invalid targets to + * try/set + */ + default: + return -EINVAL; + } + + if (s->r.top < 0 || s->r.left < 0) { + vpe_err(ctx->dev, "negative values for top and left\n"); + s->r.top = s->r.left = 0; + } + + v4l_bound_align_image(&s->r.width, MIN_W, q_data->width, 1, + &s->r.height, MIN_H, q_data->height, H_ALIGN, S_ALIGN); + + /* adjust left/top if cropping rectangle is out of bounds */ + if (s->r.left + s->r.width > q_data->width) + s->r.left = q_data->width - s->r.width; + if (s->r.top + s->r.height > q_data->height) + s->r.top = q_data->height - s->r.height; + + return 0; +} + +static int vpe_g_selection(struct file *file, void *fh, + struct v4l2_selection *s) +{ + struct vpe_ctx *ctx = file2ctx(file); + struct vpe_q_data *q_data; + + if ((s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)) + return -EINVAL; + + q_data = get_q_data(ctx, s->type); + if (!q_data) + return -EINVAL; + + switch (s->target) { + /* return width and height from S_FMT of the respective buffer type */ + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + s->r.left = 0; + s->r.top = 0; + s->r.width = q_data->width; + s->r.height = q_data->height; + return 0; + + /* + * CROP target holds for the output buffer type, and COMPOSE target + * holds for the capture buffer type. We still return the c_rect params + * for both the target types. + */ + case V4L2_SEL_TGT_COMPOSE: + case V4L2_SEL_TGT_CROP: + s->r.left = q_data->c_rect.left; + s->r.top = q_data->c_rect.top; + s->r.width = q_data->c_rect.width; + s->r.height = q_data->c_rect.height; + return 0; + } + + return -EINVAL; +} + + +static int vpe_s_selection(struct file *file, void *fh, + struct v4l2_selection *s) +{ + struct vpe_ctx *ctx = file2ctx(file); + struct vpe_q_data *q_data; + struct v4l2_selection sel = *s; + int ret; + + ret = __vpe_try_selection(ctx, &sel); + if (ret) + return ret; + + q_data = get_q_data(ctx, sel.type); + if (!q_data) + return -EINVAL; + + if ((q_data->c_rect.left == sel.r.left) && + (q_data->c_rect.top == sel.r.top) && + (q_data->c_rect.width == sel.r.width) && + (q_data->c_rect.height == sel.r.height)) { + vpe_dbg(ctx->dev, + "requested crop/compose values are already set\n"); + return 0; + } + + q_data->c_rect = sel.r; + + return set_srcdst_params(ctx); +} + static int vpe_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *reqbufs) { @@ -1674,6 +1812,9 @@ static const struct v4l2_ioctl_ops vpe_ioctl_ops = { .vidioc_try_fmt_vid_out_mplane = vpe_try_fmt, .vidioc_s_fmt_vid_out_mplane = vpe_s_fmt, + .vidioc_g_selection = vpe_g_selection, + .vidioc_s_selection = vpe_s_selection, + .vidioc_reqbufs = vpe_reqbufs, .vidioc_querybuf = vpe_querybuf,