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[media] media: ti-vpe: vpe: allow use of user specified stride
Bytesperline/stride was always overwritten by VPE to the most adequate value based on needed alignment. However in order to make use of arbitrary size DMA buffer it is better to use the user space provide stride instead. The driver will still calculate an appropriate stride but will use the provided one when it is larger than the calculated one. Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -1597,6 +1597,7 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
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struct v4l2_plane_pix_format *plane_fmt;
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unsigned int w_align;
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int i, depth, depth_bytes, height;
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unsigned int stride = 0;
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if (!fmt || !(fmt->types & type)) {
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vpe_err(ctx->dev, "Fourcc format (0x%08x) invalid.\n",
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@ -1683,16 +1684,27 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
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plane_fmt = &pix->plane_fmt[i];
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depth = fmt->vpdma_fmt[i]->depth;
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if (i == VPE_LUMA)
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plane_fmt->bytesperline = (pix->width * depth) >> 3;
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else
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plane_fmt->bytesperline = pix->width;
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stride = (pix->width * fmt->vpdma_fmt[VPE_LUMA]->depth) >> 3;
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if (stride > plane_fmt->bytesperline)
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plane_fmt->bytesperline = stride;
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plane_fmt->bytesperline = ALIGN(plane_fmt->bytesperline,
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VPDMA_STRIDE_ALIGN);
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if (i == VPE_LUMA) {
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plane_fmt->sizeimage = pix->height *
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plane_fmt->bytesperline;
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if (pix->num_planes == 1 && fmt->coplanar)
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depth += fmt->vpdma_fmt[VPE_CHROMA]->depth;
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plane_fmt->sizeimage =
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(pix->height * pix->width * depth) >> 3;
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plane_fmt->sizeimage += pix->height *
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plane_fmt->bytesperline *
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fmt->vpdma_fmt[VPE_CHROMA]->depth >> 3;
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} else { /* i == VIP_CHROMA */
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plane_fmt->sizeimage = (pix->height *
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plane_fmt->bytesperline *
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depth) >> 3;
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}
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memset(plane_fmt->reserved, 0, sizeof(plane_fmt->reserved));
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}
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