From 84fc1350df874f4b8c684723279972a88af39e83 Mon Sep 17 00:00:00 2001
From: SooChan Lim <sc1.lim@samsung.com>
Date: Mon, 12 Feb 2018 10:37:22 +0900
Subject: [PATCH] hwc: add tdm_output_hwc_unset_client_target_buffer

Change-Id: I1ba5f4dc3b2d547fd1ceee1ea01cebb1747e109d
---
 include/tdm.h         | 10 ++++++++++
 include/tdm_backend.h |  9 +++++++++
 src/tdm_output.c      | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+)

diff --git a/include/tdm.h b/include/tdm.h
index 7be0a14..e317832 100644
--- a/include/tdm.h
+++ b/include/tdm.h
@@ -635,6 +635,16 @@ tdm_error
 tdm_output_hwc_set_client_target_buffer(tdm_output *output, tbm_surface_h target_buffer, tdm_hwc_region damage);
 
 /**
+ * @brief Unset the client(relative to the TDM) target buffer
+ * @details TODO
+ * @param[in] output A output object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @since 2.0.0
+ */
+tdm_error
+tdm_output_hwc_unset_client_target_buffer(tdm_output *output);
+
+/**
  * @brief Validate the output
  * @details Instructs the device to inspect all of the layer state and
  * determine if there are any composition type changes necessary before
diff --git a/include/tdm_backend.h b/include/tdm_backend.h
index a3bd3b3..f3e21d6 100644
--- a/include/tdm_backend.h
+++ b/include/tdm_backend.h
@@ -595,6 +595,15 @@ typedef struct _tdm_func_output {
 	tdm_error (*output_hwc_set_client_target_buffer)(tdm_output *output, tbm_surface_h target_buffer, tdm_hwc_region damage);
 
 	/**
+	 * @brief Unset the client(relative to the TDM) target buffer
+	 * @details TODO
+	 * @param[in] output A output object
+	 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+	 * @since 2.0.0
+	 */
+	tdm_error (*output_hwc_unset_client_target_buffer)(tdm_output *output);
+
+	/**
 	 * @brief Validate the output
 	 * @details Instructs the device to inspect all of the layer state and
 	 * determine if there are any composition type changes necessary before
diff --git a/src/tdm_output.c b/src/tdm_output.c
index 63fe459..e5edf93 100644
--- a/src/tdm_output.c
+++ b/src/tdm_output.c
@@ -1826,6 +1826,38 @@ tdm_output_hwc_set_client_target_buffer(tdm_output *output, tbm_surface_h target
 	return ret;
 }
 
+EXTERN tdm_error
+tdm_output_hwc_unset_client_target_buffer(tdm_output *output)
+{
+	tdm_func_output *func_output = NULL;
+
+	OUTPUT_FUNC_ENTRY();
+
+	_pthread_mutex_lock(&private_display->lock);
+
+	if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
+		TDM_ERR("output(%p) not support HWC", private_output);
+		_pthread_mutex_unlock(&private_display->lock);
+		return TDM_ERROR_BAD_REQUEST;
+	}
+
+	func_output = &private_display->func_output;
+
+	if (!func_output->output_hwc_unset_client_target_buffer) {
+		/* LCOV_EXCL_START */
+		_pthread_mutex_unlock(&private_display->lock);
+		TDM_ERR("not implemented!!");
+		return TDM_ERROR_NOT_IMPLEMENTED;
+		/* LCOV_EXCL_STOP */
+	}
+
+	ret = func_output->output_hwc_unset_client_target_buffer(private_output->output_backend);
+
+	_pthread_mutex_unlock(&private_display->lock);
+
+	return ret;
+}
+
 tdm_error
 tdm_output_hwc_get_video_supported_formats(tdm_output *output, const tbm_format **formats,
 								int *count)
-- 
2.7.4