libcamera: Use stream roles directly instead of StreamUsage

In order to prepare for an API overhall of the camera configuration
generation, remove the StreamUsage class and replace its uses by stream
roles. The size hints can't be specified anymore, and will be replaced
with an API on the StreamConfiguration to negotiate configuration
parameters with cameras.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

1 files changed, 8 insertions, 8 deletions

diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp
index 359174a4..a3921f91 100644
--- a/src/libcamera/camera.cpp
+++ b/src/libcamera/camera.cpp
@@ -542,23 +542,23 @@ const std::set<Stream *> &Camera::streams() const
 }
 
 /**
- * \brief Generate a default camera configuration according to stream usages
- * \param[in] usages A list of stream usages
+ * \brief Generate a default camera configuration according to stream roles
+ * \param[in] roles A list of stream roles
  *
- * Generate a camera configuration for a set of desired usages. The caller
- * specifies a list of stream usages and the camera returns a configuration
+ * Generate a camera configuration for a set of desired stream roles. The caller
+ * specifies a list of stream roles and the camera returns a configuration
  * containing suitable streams and their suggested default configurations.
  *
- * \return A valid CameraConfiguration if the requested usages can be satisfied,
+ * \return A valid CameraConfiguration if the requested roles can be satisfied,
  * or a invalid one otherwise
  */
 CameraConfiguration
-Camera::generateConfiguration(const std::vector<StreamUsage> &usages)
+Camera::generateConfiguration(const StreamRoles &roles)
 {
-	if (disconnected_ || !usages.size() || usages.size() > streams_.size())
+	if (disconnected_ || !roles.size() || roles.size() > streams_.size())
 		return CameraConfiguration();
 
-	CameraConfiguration config = pipe_->generateConfiguration(this, usages);
+	CameraConfiguration config = pipe_->generateConfiguration(this, roles);
 
 	std::ostringstream msg("streams configuration:", std::ios_base::ate);
 	unsigned int index = 0;