compositor-drm: add num_planes to drm_fb structure

Add new member to store number of planes to drm_fb structure.

Signed-off-by: Tomohito Esaki <etom@igel.co.jp>

diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index 509f5059018ce3d5e07d9e306167cd716896c363..37cc730f0bccb6c5b0e44346d4a3fa102bf7eb71 100644 (file)
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -369,6 +369,7 @@ struct drm_fb {
        uint32_t handles[4];
        uint32_t strides[4];
        uint32_t offsets[4];
+       int num_planes;
        const struct pixel_format_info *format;
        uint64_t modifier;
        int width, height;
@@ -1033,6 +1034,7 @@ drm_fb_create_dumb(struct drm_backend *b, int width, int height,
        fb->modifier = DRM_FORMAT_MOD_INVALID;
        fb->handles[0] = create_arg.handle;
        fb->strides[0] = create_arg.pitch;
+       fb->num_planes = 1;
        fb->size = create_arg.size;
        fb->width = width;
        fb->height = height;
@@ -1204,6 +1206,7 @@ drm_fb_get_from_dmabuf(struct linux_dmabuf_buffer *dmabuf,
                goto err_free;
        }
 
+       fb->num_planes = dmabuf->attributes.n_planes;
        for (i = 0; i < dmabuf->attributes.n_planes; i++) {
                fb->handles[i] = gbm_bo_get_handle_for_plane(fb->bo, i).u32;
                if (!fb->handles[i])
@@ -1251,12 +1254,14 @@ drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend,
 
 #ifdef HAVE_GBM_MODIFIERS
        fb->modifier = gbm_bo_get_modifier(bo);
-       for (i = 0; i < gbm_bo_get_plane_count(bo); i++) {
+       fb->num_planes = gbm_bo_get_plane_count(bo);
+       for (i = 0; i < fb->num_planes; i++) {
                fb->strides[i] = gbm_bo_get_stride_for_plane(bo, i);
                fb->handles[i] = gbm_bo_get_handle_for_plane(bo, i).u32;
                fb->offsets[i] = gbm_bo_get_offset(bo, i);
        }
 #else
+       fb->num_planes = 1;
        fb->strides[0] = gbm_bo_get_stride(bo);
        fb->handles[0] = gbm_bo_get_handle(bo).u32;
        fb->modifier = DRM_FORMAT_MOD_INVALID;