LCamDev: implement configureSessionModeCReq

We can, theoretically, now change the v4l camera's mode.
2026-06-13 20:56:33 -04:00
parent 25d7b9c013
commit 3e85b920fb
20 changed files with 1926 additions and 11 deletions
@@ -0,0 +1,48 @@
+#ifndef LCAMERA_DEV_CAMERA_MODE_REQUEST_H
+#define LCAMERA_DEV_CAMERA_MODE_REQUEST_H
+
+#include <string>
+
+namespace lcamera_dev {
+
+enum class LcameraDevColourSpace
+{
+	Yuv,
+};
+
+struct LcameraDevCameraModeRequest
+{
+	unsigned width = 0;
+	unsigned height = 0;
+	LcameraDevColourSpace colourSpace = LcameraDevColourSpace::Yuv;
+	/**	EXPLANATION:
+	 * When false, configure must select a fully planar YUV pixel format.
+	 * When true, relaxed non-planar formats are not honored at the configure
+	 * API yet — producer-side deinterleaving is not implemented (Stage 2).
+	 */
+	bool fullPlanarIsOptional = false;
+};
+
+struct LcameraDevConfiguredCameraMode
+{
+	unsigned width = 0, height = 0;
+	LcameraDevColourSpace colourSpace = LcameraDevColourSpace::Yuv;
+	std::string pixelFormatName;
+	bool isFullyPlanar = false;
+	unsigned planeCount = 0;
+};
+
+void validateCameraModeRequest(const LcameraDevCameraModeRequest& request);
+
+/** Rejects fullPlanarIsOptional at the configure API until non-planar fallback
+ * paths exist in lcameraBuff. */
+void rejectFullPlanarOptionalAtConfigureApi(
+	const LcameraDevCameraModeRequest& request);
+
+bool cameraModeRequestsEqual(
+	const LcameraDevCameraModeRequest& left,
+	const LcameraDevCameraModeRequest& right);
+
+} // namespace lcamera_dev
+
+#endif // LCAMERA_DEV_CAMERA_MODE_REQUEST_H