linux-kernel - [PATCH v3 5/6] venus: Add a handling of QC10C compressed format

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Date:   Mon, 17 Jan 2022 17:55:58 +0200
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org
Cc:     hverkuil-cisco@...all.nl,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>
Subject: [PATCH v3 5/6] venus: Add a handling of QC10C compressed format

This adds QC10C compressed pixel format in the Venus driver, and
make it possible to discover from v4l2 clients.

Note: The QC10C format shouldn't be possible to discpver by the
client if the decoded bitstream is not 10-bits.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
---
 drivers/media/platform/qcom/venus/helpers.c | 26 ++++-----------------
 drivers/media/platform/qcom/venus/vdec.c    | 19 ++++++++++++---
 2 files changed, 20 insertions(+), 25 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index adbfa4fbe139..69a9a9471a27 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -594,6 +594,8 @@ static u32 to_hfi_raw_fmt(u32 v4l2_fmt)
 		return HFI_COLOR_FORMAT_NV21;
 	case V4L2_PIX_FMT_QC08C:
 		return HFI_COLOR_FORMAT_NV12_UBWC;
+	case V4L2_PIX_FMT_QC10C:
+		return HFI_COLOR_FORMAT_YUV420_TP10_UBWC;
 	default:
 		break;
 	}
@@ -1176,7 +1178,8 @@ int venus_helper_set_format_constraints(struct venus_inst *inst)
 	if (!IS_V6(inst->core))
 		return 0;
 
-	if (inst->opb_fmt == HFI_COLOR_FORMAT_NV12_UBWC)
+	if (inst->opb_fmt == HFI_COLOR_FORMAT_NV12_UBWC ||
+	    inst->opb_fmt == HFI_COLOR_FORMAT_YUV420_TP10_UBWC)
 		return 0;
 
 	pconstraint.buffer_type = HFI_BUFFER_OUTPUT2;
@@ -1747,27 +1750,6 @@ int venus_helper_get_out_fmts(struct venus_inst *inst, u32 v4l2_fmt,
 	if (!caps)
 		return -EINVAL;
 
-	if (inst->bit_depth == VIDC_BITDEPTH_10 &&
-	    inst->session_type == VIDC_SESSION_TYPE_DEC) {
-		found_ubwc =
-			find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT,
-					   HFI_COLOR_FORMAT_YUV420_TP10_UBWC);
-		found = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT2,
-					   HFI_COLOR_FORMAT_NV12);
-		if (found_ubwc && found) {
-			/*
-			 * Hard-code DPB buffers to be 10bit UBWC and decoder
-			 * output buffers in 8bit NV12 until V4L2 is able to
-			 * expose compressed/tiled formats to applications.
-			 */
-			*out_fmt = HFI_COLOR_FORMAT_YUV420_TP10_UBWC;
-			*out2_fmt = HFI_COLOR_FORMAT_NV12;
-			return 0;
-		}
-
-		return -EINVAL;
-	}
-
 	if (ubwc) {
 		ubwc_fmt = fmt | HFI_COLOR_FORMAT_UBWC_BASE;
 		found_ubwc = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT,
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index eb02e45a512b..c8261c6cb0fb 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -35,6 +35,10 @@ static const struct venus_format vdec_formats[] = {
 		.num_planes = 1,
 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
 	}, {
+		.pixfmt = V4L2_PIX_FMT_QC10C,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
+	},{
 		.pixfmt = V4L2_PIX_FMT_NV12,
 		.num_planes = 1,
 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
@@ -114,6 +118,10 @@ find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
 	    !venus_helper_check_format(inst, fmt[i].pixfmt))
 		return NULL;
 
+	if (V4L2_TYPE_IS_CAPTURE(type) && fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
+	    !(inst->bit_depth == VIDC_BITDEPTH_10))
+		return NULL;
+
 	return &fmt[i];
 }
 
@@ -133,11 +141,16 @@ find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
 		if (fmt[i].type != type)
 			continue;
 
-		if (V4L2_TYPE_IS_OUTPUT(type))
+		if (V4L2_TYPE_IS_OUTPUT(type)) {
 			valid = venus_helper_check_codec(inst, fmt[i].pixfmt);
-		else if (V4L2_TYPE_IS_CAPTURE(type))
+		} else if (V4L2_TYPE_IS_CAPTURE(type)) {
 			valid = venus_helper_check_format(inst, fmt[i].pixfmt);
 
+			if (fmt[i].pixfmt == V4L2_PIX_FMT_QC10C &&
+			    !(inst->bit_depth == VIDC_BITDEPTH_10))
+				valid = false;
+		}
+
 		if (k == index && valid)
 			break;
 		if (valid)
@@ -1537,7 +1550,7 @@ static const struct hfi_inst_ops vdec_hfi_ops = {
 static void vdec_inst_init(struct venus_inst *inst)
 {
 	inst->hfi_codec = HFI_VIDEO_CODEC_H264;
-	inst->fmt_out = &vdec_formats[7];
+	inst->fmt_out = &vdec_formats[8];
 	inst->fmt_cap = &vdec_formats[0];
 	inst->width = frame_width_min(inst);
 	inst->height = ALIGN(frame_height_min(inst), 32);
-- 
2.25.1