hwc: HWC 2.0 implementation

Add HWCLayer, HWCCallbacks and implement HWC2 layer functionality.

Change-Id: Ic7764e72f4cae534e68764df4cf80eb3db982071

.gitignore

@@ -0,0 +1,4 @@
+CMakeLists.txt
+.idea/
+.editorconfig
+.clang-complete

Android.mk

@@ -2,7 +2,7 @@ display-hals := libgralloc libcopybit liblight libmemtrack libqservice libqdutil
 display-hals += hdmi_cec
 
 sdm-libs := sdm/libs
-display-hals += $(sdm-libs)/utils $(sdm-libs)/core $(sdm-libs)/hwc
+display-hals += $(sdm-libs)/utils $(sdm-libs)/core $(sdm-libs)/hwc $(sdm-libs)/hwc2
 
 ifeq ($(call is-vendor-board-platform,QCOM),true)
     include $(call all-named-subdir-makefiles,$(display-hals))

common.mk

@@ -1,6 +1,8 @@
 #Common headers
 display_top := $(call my-dir)
 
+use_hwc2 := false
+
 common_includes := $(display_top)/libqdutils
 common_includes += $(display_top)/libqservice
 common_includes += $(display_top)/libcopybit

sdm/.clang-format

@@ -0,0 +1,13 @@
+---
+Language:        Cpp
+BasedOnStyle:  Google
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortBlocksOnASingleLine: false
+ColumnLimit:     100
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+DerivePointerAlignment: false
+PointerAlignment: Right
+#ReflowComments: false

sdm/include/utils/debug.h

@@ -45,6 +45,7 @@
 #define DLOGV_IF(tag, format, ...) DLOG(tag, Verbose, format, ##__VA_ARGS__)
 
 #define DLOGE(format, ...) DLOGE_IF(kTagNone, format, ##__VA_ARGS__)
+#define DLOGD(format, ...) DLOGD_IF(kTagNone, format, ##__VA_ARGS__)
 #define DLOGW(format, ...) DLOGW_IF(kTagNone, format, ##__VA_ARGS__)
 #define DLOGI(format, ...) DLOGI_IF(kTagNone, format, ##__VA_ARGS__)
 #define DLOGV(format, ...) DLOGV_IF(kTagNone, format, ##__VA_ARGS__)

sdm/libs/hwc/Android.mk

@@ -1,6 +1,7 @@
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 include $(LOCAL_PATH)/../../../common.mk
+ifeq ($(use_hwc2),false)
 
 LOCAL_MODULE                  := hwcomposer.$(TARGET_BOARD_PLATFORM)
 LOCAL_MODULE_RELATIVE_PATH    := hw
@@ -30,3 +31,4 @@ LOCAL_SRC_FILES               := hwc_session.cpp \
                                  cpuhint.cpp
 
 include $(BUILD_SHARED_LIBRARY)
+endif

sdm/libs/hwc2/Android.mk

@@ -0,0 +1,37 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+include $(LOCAL_PATH)/../../../common.mk
+
+ifeq ($(use_hwc2),true)
+
+LOCAL_MODULE                  := hwcomposer.$(TARGET_BOARD_PLATFORM)
+LOCAL_MODULE_RELATIVE_PATH    := hw
+LOCAL_MODULE_TAGS             := optional
+LOCAL_C_INCLUDES              := $(common_includes)
+
+LOCAL_CFLAGS                  := -Wno-missing-field-initializers -Wno-unused-parameter \
+                                 -std=c++11 -fcolor-diagnostics\
+                                 -DLOG_TAG=\"SDM\" $(common_flags) \
+                                 -I $(display_top)/sdm/libs/hwc
+LOCAL_CLANG                   := true
+
+LOCAL_SHARED_LIBRARIES        := libsdmcore libqservice libbinder libhardware libhardware_legacy \
+                                 libutils libcutils libsync libmemalloc libqdutils libdl \
+                                 libpowermanager libsdmutils libc++
+
+LOCAL_SRC_FILES               := hwc_session.cpp \
+                                 hwc_display.cpp \
+                                 hwc_display_primary.cpp \
+                                 hwc_display_external.cpp \
+                                 hwc_display_virtual.cpp \
+                                 ../hwc/hwc_debugger.cpp \
+                                 ../hwc/hwc_buffer_allocator.cpp \
+                                 ../hwc/hwc_buffer_sync_handler.cpp \
+                                 hwc_color_manager.cpp \
+                                 hwc_layers.cpp \
+                                 hwc_callbacks.cpp \
+                                 ../hwc/blit_engine_c2d.cpp \
+                                 ../hwc/cpuhint.cpp
+
+include $(BUILD_SHARED_LIBRARY)
+endif

sdm/libs/hwc2/hwc_callbacks.cpp

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *    * Neither the name of The Linux Foundation. nor the names of its
+ *      contributors may be used to endorse or promote products derived
+ *      from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <utils/constants.h>
+#include <utils/debug.h>
+#include "hwc_callbacks.h"
+
+#define __CLASS__ "HWCCallbacks"
+
+namespace sdm {
+
+void HWCCallbacks::Hotplug(hwc2_display_t display, HWC2::Connection state) {
+  if (hotplug_) {
+    hotplug_(hotplug_data_, display, INT32(state));
+  }
+}
+
+void HWCCallbacks::Refresh(hwc2_display_t display) {
+  if (refresh_) {
+    refresh_(refresh_data_, display);
+  }
+}
+
+void HWCCallbacks::Vsync(hwc2_display_t display, int64_t timestamp) {
+  if (vsync_) {
+    vsync_(vsync_data_, display, timestamp);
+  }
+}
+
+HWC2::Error HWCCallbacks::Register(HWC2::Callback descriptor, hwc2_callback_data_t callback_data,
+                                   hwc2_function_pointer_t pointer) {
+  switch (descriptor) {
+    case HWC2::Callback::Hotplug:
+      hotplug_data_ = callback_data;
+      hotplug_ = reinterpret_cast<HWC2_PFN_HOTPLUG>(pointer);
+      break;
+    case HWC2::Callback::Refresh:
+      refresh_data_ = callback_data;
+      refresh_ = reinterpret_cast<HWC2_PFN_REFRESH>(pointer);
+      break;
+    case HWC2::Callback::Vsync:
+      vsync_data_ = callback_data;
+      vsync_ = reinterpret_cast<HWC2_PFN_VSYNC>(pointer);
+      break;
+    default:
+      return HWC2::Error::BadParameter;
+  }
+  return HWC2::Error::None;
+}
+
+}  // namespace sdm

sdm/libs/hwc2/hwc_callbacks.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *    * Neither the name of The Linux Foundation. nor the names of its
+ *      contributors may be used to endorse or promote products derived
+ *      from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HWC_CALLBACKS_H__
+#define __HWC_CALLBACKS_H__
+
+#define HWC2_INCLUDE_STRINGIFICATION
+#define HWC2_USE_CPP11
+#include <hardware/hwcomposer2.h>
+#undef HWC2_INCLUDE_STRINGIFICATION
+#undef HWC2_USE_CPP11
+
+namespace sdm {
+
+class HWCCallbacks {
+ public:
+  void Hotplug(hwc2_display_t display, HWC2::Connection state);
+  void Refresh(hwc2_display_t display);
+  void Vsync(hwc2_display_t display, int64_t timestamp);
+  HWC2::Error Register(HWC2::Callback, hwc2_callback_data_t callback_data,
+                       hwc2_function_pointer_t pointer);
+
+ private:
+  hwc2_callback_data_t hotplug_data_ = nullptr;
+  hwc2_callback_data_t refresh_data_ = nullptr;
+  hwc2_callback_data_t vsync_data_ = nullptr;
+
+  HWC2_PFN_HOTPLUG hotplug_ = nullptr;
+  HWC2_PFN_REFRESH refresh_ = nullptr;
+  HWC2_PFN_VSYNC vsync_ = nullptr;
+};
+
+}  // namespace sdm
+
+#endif  // __HWC_CALLBACKS_H__