[Intel-gfx] [PATCH i-g-t v1 02/32] lib/igt_kms: Avoid depencency on static plane count

[Mika Kahola]

Reviewed-by: Mika Kahola <mika.kahola at intel.com>

On Fri, 2017-01-20 at 12:45 -0500, Robert Foss wrote:
> Rework kmstest_crtc and kmstest_plane structs and their usage
> to not depend on a static plane count.
> 
> Signed-off-by: Robert Foss <robert.foss at collabora.com>
> ---
>  lib/igt_kms.c | 47 ++++++++++++++++++++++++++++++-----------------
>  lib/igt_kms.h |  4 ++--
>  2 files changed, 32 insertions(+), 19 deletions(-)
> 
> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
> index e1abcf0d..922bba63 100644
> --- a/lib/igt_kms.c
> +++ b/lib/igt_kms.c
> @@ -1227,7 +1227,7 @@ static void get_plane(char *str, int type,
> struct kmstest_plane *plane)
>  	int ret;
>  	char buf[256];
>  
> -	plane->plane = type;
> +	plane->type = type;
>  	ret = sscanf(str + 12, "%d%*c %*s %[^n]s",
>  		     &plane->id,
>  		     buf);
> @@ -1240,31 +1240,36 @@ static void get_plane(char *str, int type,
> struct kmstest_plane *plane)
>  	igt_assert_eq(ret, 2);
>  }
>  
> -static int parse_planes(FILE *fid, struct kmstest_plane *plane)
> +static int parse_planes(FILE *fid, struct kmstest_plane *planes)
>  {
>  	char tmp[256];
> -	int nplanes;
> +	int n_planes;
>  
> -	nplanes = 0;
> +	n_planes = 0;
>  	while (fgets(tmp, 256, fid) != NULL) {
> -		igt_assert_neq(nplanes, IGT_MAX_PLANES);
>  		if (strstr(tmp, "type=PRI") != NULL) {
> -			get_plane(tmp, DRM_PLANE_TYPE_PRIMARY,
> &plane[nplanes]);
> -			plane[nplanes].index = nplanes;
> -			nplanes++;
> +			if (planes) {
> +				get_plane(tmp,
> DRM_PLANE_TYPE_PRIMARY, &planes[n_planes]);
> +				planes[n_planes].index = n_planes;
> +			}
> +			n_planes++;
>  		} else if (strstr(tmp, "type=OVL") != NULL) {
> -			get_plane(tmp, DRM_PLANE_TYPE_OVERLAY,
> &plane[nplanes]);
> -			plane[nplanes].index = nplanes;
> -			nplanes++;
> +			if (planes) {
> +				get_plane(tmp,
> DRM_PLANE_TYPE_OVERLAY, &planes[n_planes]);
> +				planes[n_planes].index = n_planes;
> +			}
> +			n_planes++;
>  		} else if (strstr(tmp, "type=CUR") != NULL) {
> -			get_plane(tmp, DRM_PLANE_TYPE_CURSOR,
> &plane[nplanes]);
> -			plane[nplanes].index = nplanes;
> -			nplanes++;
> +			if (planes) {
> +				get_plane(tmp,
> DRM_PLANE_TYPE_CURSOR, &planes[n_planes]);
> +				planes[n_planes].index = n_planes;
> +			}
> +			n_planes++;
>  			break;
>  		}
>  	}
>  
> -	return nplanes;
> +	return n_planes;
>  }
>  
>  static void parse_crtc(char *info, struct kmstest_crtc *crtc)
> @@ -1304,7 +1309,12 @@ void kmstest_get_crtc(enum pipe pipe, struct
> kmstest_crtc *crtc)
>  			if (strstr(tmp, "active=yes") != NULL) {
>  				crtc->active = true;
>  				parse_crtc(tmp, crtc);
> -				crtc->nplanes = parse_planes(fid,
> crtc->plane);
> +
> +				crtc->nplanes = parse_planes(fid,
> NULL);
> +				crtc->plane = calloc(crtc->nplanes,
> sizeof(*crtc->plane));
> +				fseek(fid, 0, SEEK_END);
> +				fseek(fid, 0, SEEK_SET);
> +				parse_planes(fid, crtc->plane);
>  
>  				if (crtc->pipe != pipe)
>  					crtc = NULL;
> @@ -1330,7 +1340,10 @@ void igt_assert_plane_visible(enum pipe pipe,
> bool visibility)
>  	kmstest_get_crtc(pipe, &crtc);
>  
>  	visible = true;
> -	for (i = IGT_PLANE_2; i < crtc.nplanes; i++) {
> +	for (i = 0; i < crtc.nplanes; i++) {
> +		if (crtc.plane[i].type == DRM_PLANE_TYPE_PRIMARY)
> +			continue;
> +
>  		if (crtc.plane[i].pos_x > crtc.width) {
>  			visible = false;
>  			break;
> diff --git a/lib/igt_kms.h b/lib/igt_kms.h
> index d6cf8338..44602fdd 100644
> --- a/lib/igt_kms.h
> +++ b/lib/igt_kms.h
> @@ -135,8 +135,8 @@ struct kmstest_connector_config {
>  
>  struct kmstest_plane {
>  	int id;
> -	int plane;
>  	int index;
> +	int type;
>  	int pos_x;
>  	int pos_y;
>  	int width;
> @@ -150,7 +150,7 @@ struct kmstest_crtc {
>  	int width;
>  	int height;
>  	int nplanes;
> -	struct kmstest_plane plane[IGT_MAX_PLANES];
> +	struct kmstest_plane *plane;
>  };
>  
>  /**
-- 
Mika Kahola - Intel OTC