drm_hwcomposer: refactor platform directory
Motivation:
Platform term meaning used in drm_hwcomposer does not correspond to the
content of the platform directory. Platform directory consists of:
1. Buffer information getters for different gralloc (currently called platform).
2. Composition planner logic (which has flaws and should be reworked into
layer->plane mapping during validation stage logic).
3. DrmGenericImpoter with reference counting logic.
Android-11 IMapper@4 metadata API offers a generic way to access buffer
information which makes other gralloc buffer information getters obsolete.
Legacy getters should be maintained for some time until all known users
will migrate to Mapper@4 API.
Implementation:
1. Split 'PlatformImporter' logic to 'Importer' only and 'Buffer Getter' logic.
a. Remove buffer_handle_t parameter from ImportBuffer(). Instead user should
get BufferInfo using ConvertBoInfo to struct hwc_drm_bo_t, then use it for
ImportBuffer().
b. Move DrmGenericImporter.{cpp/h} into the drm directory.
2. Isolate planner code in single file and move it to compositor directory as
compositor/Planner.{cpp/h}
3. Rename platform definition
a. Rename platform directory to bufferinfo.
b. Rename/move bufferinfo/platorm*.{cpp,h} getters to
bufferinfo/legacy/BufferInfo*.{cpp,h}. Align class names/includes.
4. Split legacy/metadata getters logic.
a. Apply existing bufferinfogetter base class only for legacy getters.
b. Combine legacy/generic gettera under new base class.
c. Create a placeholder for generic(metadata) getter.
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
diff --git a/bufferinfo/legacy/BufferInfoMinigbm.cpp b/bufferinfo/legacy/BufferInfoMinigbm.cpp
new file mode 100644
index 0000000..67a85cb
--- /dev/null
+++ b/bufferinfo/legacy/BufferInfoMinigbm.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "hwc-bufferinfo-minigbm"
+
+#include "BufferInfoMinigbm.h"
+
+#include <log/log.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "cros_gralloc_handle.h"
+
+namespace android {
+
+LEGACY_BUFFER_INFO_GETTER(BufferInfoMinigbm);
+
+int BufferInfoMinigbm::ConvertBoInfo(buffer_handle_t handle, hwc_drm_bo_t *bo) {
+ cros_gralloc_handle *gr_handle = (cros_gralloc_handle *)handle;
+ if (!gr_handle)
+ return -EINVAL;
+
+ bo->width = gr_handle->width;
+ bo->height = gr_handle->height;
+ bo->hal_format = gr_handle->droid_format;
+ bo->format = gr_handle->format;
+ bo->usage = gr_handle->usage;
+ bo->pixel_stride = gr_handle->pixel_stride;
+ bo->prime_fds[0] = gr_handle->fds[0];
+ bo->pitches[0] = gr_handle->strides[0];
+ bo->offsets[0] = gr_handle->offsets[0];
+
+ return 0;
+}
+
+} // namespace android