[PATCH V7 03/37] lib/igt_kms: Move get_writeback_formats_blob to lib

[Sharma, Swati2]

Hi Alex,

On 27-03-2025 05:05 am, Alex Hung wrote:
> From: Harry Wentland <harry.wentland at amd.com>
>
> We'll need it in other tests
>
> Signed-off-by: Harry Wentland <harry.wentland at amd.com>
> ---
>   lib/igt_kms.c         | 19 +++++++++++++++++++
>   lib/igt_kms.h         |  2 ++
>   tests/kms_writeback.c | 19 -------------------
>   3 files changed, 21 insertions(+), 19 deletions(-)
>
> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
> index 99c8707c7..884d78749 100644
> --- a/lib/igt_kms.c
> +++ b/lib/igt_kms.c
> @@ -7434,3 +7434,22 @@ int igt_backlight_write(int value, const char *fname, igt_backlight_context_t *c
>   
>   	return 0;
>   }
> +
> +drmModePropertyBlobRes *get_writeback_formats_blob(igt_output_t *output)
Please write function documentation comment.
> +{
> +	drmModePropertyBlobRes *blob = NULL;
> +	uint64_t blob_id;
> +	int ret;
> +
> +	ret = kmstest_get_property(output->display->drm_fd,
> +				   output->config.connector->connector_id,
> +				   DRM_MODE_OBJECT_CONNECTOR,
> +				   igt_connector_prop_names[IGT_CONNECTOR_WRITEBACK_PIXEL_FORMATS],
> +				   NULL, &blob_id, NULL);
> +	if (ret)
> +		blob = drmModeGetPropertyBlob(output->display->drm_fd, blob_id);
> +
> +	igt_assert(blob);
> +
> +	return blob;
> +}
> diff --git a/lib/igt_kms.h b/lib/igt_kms.h
> index 0381c82ad..9b5a940f7 100644
> --- a/lib/igt_kms.h
> +++ b/lib/igt_kms.h
> @@ -1280,4 +1280,6 @@ void igt_set_link_params(int drm_fd, igt_output_t *output,
>   int igt_backlight_read(int *result, const char *fname, igt_backlight_context_t *context);
>   int igt_backlight_write(int value, const char *fname, igt_backlight_context_t *context);
>   
> +drmModePropertyBlobRes *get_writeback_formats_blob(igt_output_t *output);
> +
>   #endif /* __IGT_KMS_H__ */
> diff --git a/tests/kms_writeback.c b/tests/kms_writeback.c
> index e3671c59b..f733f3ce6 100644
> --- a/tests/kms_writeback.c
> +++ b/tests/kms_writeback.c
> @@ -92,25 +92,6 @@ enum {
>   	XRGB2101010 = 1 << 1,
>   };
>   
> -static drmModePropertyBlobRes *get_writeback_formats_blob(igt_output_t *output)
> -{
> -	drmModePropertyBlobRes *blob = NULL;
> -	uint64_t blob_id;
> -	int ret;
> -
> -	ret = kmstest_get_property(output->display->drm_fd,
> -				   output->config.connector->connector_id,
> -				   DRM_MODE_OBJECT_CONNECTOR,
> -				   igt_connector_prop_names[IGT_CONNECTOR_WRITEBACK_PIXEL_FORMATS],
> -				   NULL, &blob_id, NULL);
> -	if (ret)
> -		blob = drmModeGetPropertyBlob(output->display->drm_fd, blob_id);
> -
> -	igt_assert(blob);
> -
> -	return blob;
> -}
> -
>   static bool check_writeback_config(igt_display_t *display, igt_output_t *output,
>   				    drmModeModeInfo override_mode)
>   {