Re: [PATCH] Add drmModeAddFB2WithModifiers() which takes format modifiers

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On 09/14/2016 07:07 AM, Kristian H. Kristensen wrote:
> The only current user of this open codes the ioctl. Let's add an entry
> point for this to libdrm.

Tested-by: Alexandre Courbot <acourbot@xxxxxxxxxx>

Replaced one custom (staging) ioctl on Tegra with FB modifiers, noticed
this was missing!

> 
> Signed-off-by: Kristian H. Kristensen <hoegsberg@xxxxxxxxxxxx>
> ---
>  xf86drmMode.c | 21 +++++++++++++++++----
>  xf86drmMode.h |  7 +++++++
>  2 files changed, 24 insertions(+), 4 deletions(-)
> 
> diff --git a/xf86drmMode.c b/xf86drmMode.c
> index f7b5948..2907c5c 100644
> --- a/xf86drmMode.c
> +++ b/xf86drmMode.c
> @@ -270,10 +270,10 @@ int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
>  	return 0;
>  }
>  
> -int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
> -		  uint32_t pixel_format, uint32_t bo_handles[4],
> -		  uint32_t pitches[4], uint32_t offsets[4],
> -		  uint32_t *buf_id, uint32_t flags)
> +int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
> +                               uint32_t pixel_format, uint32_t bo_handles[4],
> +                               uint32_t pitches[4], uint32_t offsets[4],
> +                               uint64_t modifier[4], uint32_t *buf_id, uint32_t flags)
>  {
>  	struct drm_mode_fb_cmd2 f;
>  	int ret;
> @@ -286,6 +286,8 @@ int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
>  	memcpy(f.handles, bo_handles, 4 * sizeof(bo_handles[0]));
>  	memcpy(f.pitches, pitches, 4 * sizeof(pitches[0]));
>  	memcpy(f.offsets, offsets, 4 * sizeof(offsets[0]));
> +        if (modifier)
> +		memcpy(f.modifier, modifier, 4 * sizeof(modifier[0]));
>  
>  	if ((ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_ADDFB2, &f)))
>  		return ret;
> @@ -294,6 +296,17 @@ int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
>  	return 0;
>  }
>  
> +int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
> +                  uint32_t pixel_format, uint32_t bo_handles[4],
> +                  uint32_t pitches[4], uint32_t offsets[4],
> +                  uint32_t *buf_id, uint32_t flags)
> +{
> +  return drmModeAddFB2WithModifiers(fd, width, height,
> +                                    pixel_format, bo_handles,
> +                                    pitches, offsets, NULL,
> +                                    buf_id, flags);
> +}
> +
>  int drmModeRmFB(int fd, uint32_t bufferId)
>  {
>  	return DRM_IOCTL(fd, DRM_IOCTL_MODE_RMFB, &bufferId);
> diff --git a/xf86drmMode.h b/xf86drmMode.h
> index 4de7bbb..02190ea 100644
> --- a/xf86drmMode.h
> +++ b/xf86drmMode.h
> @@ -369,6 +369,13 @@ extern int drmModeAddFB2(int fd, uint32_t width, uint32_t height,
>  			 uint32_t pixel_format, uint32_t bo_handles[4],
>  			 uint32_t pitches[4], uint32_t offsets[4],
>  			 uint32_t *buf_id, uint32_t flags);
> +
> +/* ...with format modifiers */
> +int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
> +                               uint32_t pixel_format, uint32_t bo_handles[4],
> +                               uint32_t pitches[4], uint32_t offsets[4],
> +                               uint64_t modifier[4], uint32_t *buf_id, uint32_t flags);
> +
>  /**
>   * Destroies the given framebuffer.
>   */
> 

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