diff options
| author | Benjamin Li <benl@squareup.com> | 2021-05-05 09:23:15 -0700 |
|---|---|---|
| committer | Benjamin Li <benl@squareup.com> | 2021-05-07 16:28:30 -0700 |
| commit | 9127dc88344d7c62037b4b4305c9c73da6826981 (patch) | |
| tree | 07415bced7d39b3edaa432d2b7fdec8252a5a9b4 | |
| parent | 4535e53dc502f06ad5e369cbdc680c753baabd30 (diff) | |
| download | drm_hwcomposer-9127dc88344d7c62037b4b4305c9c73da6826981.tar.gz | |
drm_hwcomposer: add DRM_PROPERTY_TYPE_BITMASK
Bitmask properties are integers that additionally have strings associated
with each bit. For example, the "rotation" property's bits are described
as "rotate-90", "reflect-x", and so on.
The bitmask integer is not actually passed to us -- instead, the interface
for enums is used, except that more than one value can be set. This means we
must query using the associated strings, rather than use bit index mappings
provided as constants in the public kernel header drm_mode.h.
Signed-off-by: Benjamin Li <benl@squareup.com>
| -rw-r--r-- | drm/DrmProperty.cpp | 3 | ||||
| -rw-r--r-- | drm/DrmProperty.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drm/DrmProperty.cpp b/drm/DrmProperty.cpp index 4c5f44f..8e6f7e5 100644 --- a/drm/DrmProperty.cpp +++ b/drm/DrmProperty.cpp @@ -57,6 +57,8 @@ void DrmProperty::Init(drmModePropertyPtr p, uint64_t value) { type_ = DRM_PROPERTY_TYPE_OBJECT; else if (flags_ & DRM_MODE_PROP_BLOB) type_ = DRM_PROPERTY_TYPE_BLOB; + else if (flags_ & DRM_MODE_PROP_BITMASK) + type_ = DRM_PROPERTY_TYPE_BITMASK; } uint32_t DrmProperty::id() const { @@ -87,6 +89,7 @@ std::tuple<int, uint64_t> DrmProperty::value() const { case DRM_PROPERTY_TYPE_OBJECT: return std::make_tuple(0, value_); + case DRM_PROPERTY_TYPE_BITMASK: default: return std::make_tuple(-EINVAL, 0); } diff --git a/drm/DrmProperty.h b/drm/DrmProperty.h index 3f4d15e..70678fd 100644 --- a/drm/DrmProperty.h +++ b/drm/DrmProperty.h @@ -30,6 +30,7 @@ enum DrmPropertyType { DRM_PROPERTY_TYPE_ENUM, DRM_PROPERTY_TYPE_OBJECT, DRM_PROPERTY_TYPE_BLOB, + DRM_PROPERTY_TYPE_BITMASK, DRM_PROPERTY_TYPE_INVALID, }; |