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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2021-07-30 20:35:07 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2021-08-02 16:41:20 +0200 |
| commit | 279cc2e9543eb357c0ef299cf398b2e74a021f6b (patch) | |
| tree | d6eb3e98a92f55835f0bff7ea8c1b9c363d554ec /include/drm/drm_framebuffer.h | |
| parent | drm: document drm_mode_get_property (diff) | |
| download | linux-279cc2e9543eb357c0ef299cf398b2e74a021f6b.tar.xz linux-279cc2e9543eb357c0ef299cf398b2e74a021f6b.zip | |
drm: Define DRM_FORMAT_MAX_PLANES
DRM uses a magic number of 4 for the maximum number of planes per color
format. Declare this constant via DRM_FORMAT_MAX_PLANES and update the
related code. Some code depends on the length of arrays that are now
declared with DRM_FORMAT_MAX_PLANES. Convert it from '4' to ARRAY_SIZE.
v2:
* mention usage of ARRAY_SIZE() in the commit message (Maxime)
* also fix error handling in drm_gem_fb_init_with_funcs()
(kernel test robot)
* include <drm/drm_fourcc.h> for DRM_FORMAT_MAX_PLANES
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210730183511.20080-2-tzimmermann@suse.de
Diffstat (limited to 'include/drm/drm_framebuffer.h')
| -rw-r--r-- | include/drm/drm_framebuffer.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/drm/drm_framebuffer.h b/include/drm/drm_framebuffer.h index be658ebbec72..f67c5b7bcb68 100644 --- a/include/drm/drm_framebuffer.h +++ b/include/drm/drm_framebuffer.h @@ -27,12 +27,12 @@ #include <linux/list.h> #include <linux/sched.h> +#include <drm/drm_fourcc.h> #include <drm/drm_mode_object.h> struct drm_clip_rect; struct drm_device; struct drm_file; -struct drm_format_info; struct drm_framebuffer; struct drm_gem_object; @@ -147,7 +147,7 @@ struct drm_framebuffer { * @pitches: Line stride per buffer. For userspace created object this * is copied from drm_mode_fb_cmd2. */ - unsigned int pitches[4]; + unsigned int pitches[DRM_FORMAT_MAX_PLANES]; /** * @offsets: Offset from buffer start to the actual pixel data in bytes, * per buffer. For userspace created object this is copied from @@ -165,7 +165,7 @@ struct drm_framebuffer { * data (even for linear buffers). Specifying an x/y pixel offset is * instead done through the source rectangle in &struct drm_plane_state. */ - unsigned int offsets[4]; + unsigned int offsets[DRM_FORMAT_MAX_PLANES]; /** * @modifier: Data layout modifier. This is used to describe * tiling, or also special layouts (like compression) of auxiliary @@ -210,7 +210,7 @@ struct drm_framebuffer { * This is used by the GEM framebuffer helpers, see e.g. * drm_gem_fb_create(). */ - struct drm_gem_object *obj[4]; + struct drm_gem_object *obj[DRM_FORMAT_MAX_PLANES]; }; #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base) |