linux-kernel - [PATCH v4 03/11] media: rkvdec: h264: Use bytesperline and buffer height as virstride

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Message-ID: <20231105165521.3592037-4-jonas@kwiboo.se>
Date:   Sun,  5 Nov 2023 16:55:02 +0000
From:   Jonas Karlman <jonas@...boo.se>
To:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Cc:     Alex Bee <knaerzche@...il.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Sebastian Fricke <sebastian.fricke@...labora.com>,
        Christopher Obbard <chris.obbard@...labora.com>,
        linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Jonas Karlman <jonas@...boo.se>
Subject: [PATCH v4 03/11] media: rkvdec: h264: Use bytesperline and buffer height as virstride

Use bytesperline and buffer height to calculate the strides configured.

This does not really change anything other than ensuring the
bytesperline that is signaled to userspace matches what is configured
in HW.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
v4:
- No change

v3:
- Remove unnecessary yuv_virstride +=

 drivers/staging/media/rkvdec/rkvdec-h264.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 4fc167b42cf0..7a1e76d423df 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -896,9 +896,9 @@ static void config_registers(struct rkvdec_ctx *ctx,
 	dma_addr_t rlc_addr;
 	dma_addr_t refer_addr;
 	u32 rlc_len;
-	u32 hor_virstride = 0;
-	u32 ver_virstride = 0;
-	u32 y_virstride = 0;
+	u32 hor_virstride;
+	u32 ver_virstride;
+	u32 y_virstride;
 	u32 yuv_virstride = 0;
 	u32 offset;
 	dma_addr_t dst_addr;
@@ -909,16 +909,16 @@ static void config_registers(struct rkvdec_ctx *ctx,
 
 	f = &ctx->decoded_fmt;
 	dst_fmt = &f->fmt.pix_mp;
-	hor_virstride = (sps->bit_depth_luma_minus8 + 8) * dst_fmt->width / 8;
-	ver_virstride = round_up(dst_fmt->height, 16);
+	hor_virstride = dst_fmt->plane_fmt[0].bytesperline;
+	ver_virstride = dst_fmt->height;
 	y_virstride = hor_virstride * ver_virstride;
 
 	if (sps->chroma_format_idc == 0)
 		yuv_virstride = y_virstride;
 	else if (sps->chroma_format_idc == 1)
-		yuv_virstride += y_virstride + y_virstride / 2;
+		yuv_virstride = y_virstride + y_virstride / 2;
 	else if (sps->chroma_format_idc == 2)
-		yuv_virstride += 2 * y_virstride;
+		yuv_virstride = 2 * y_virstride;
 
 	reg = RKVDEC_Y_HOR_VIRSTRIDE(hor_virstride / 16) |
 	      RKVDEC_UV_HOR_VIRSTRIDE(hor_virstride / 16) |
-- 
2.42.0