Add display manager instance which hands relevant information to emugl layer

external/android-emugl/host/libs/libOpenglRender/CMakeLists.txt

@@ -1,8 +1,10 @@
 set(SOURCES
     ColorBuffer.cpp
+    DisplayManager.cpp
     FbConfig.cpp
     FrameBuffer.cpp
     LayerManager.cpp
+    NativeSubWindow.h
     NativeSubWindow_delegate.cpp
     ReadBuffer.cpp
     RenderContext.cpp

external/android-emugl/host/libs/libOpenglRender/DisplayManager.cpp

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2016 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "DisplayManager.h"
+
+namespace {
+std::shared_ptr<DisplayManager> display_mgr;
+
+class NullDisplayManager : public DisplayManager {
+public:
+    DisplayInfo display_info() const override {
+        return {1280, 720};
+    }
+};
+}
+
+DisplayManager::~DisplayManager() {
+}
+
+std::shared_ptr<DisplayManager> DisplayManager::get() {
+    if (!display_mgr)
+        display_mgr = std::make_shared<NullDisplayManager>();
+    return display_mgr;
+}
+
+void registerDisplayManager(const std::shared_ptr<DisplayManager> &mgr) {
+    display_mgr = mgr;
+}

external/android-emugl/host/libs/libOpenglRender/DisplayManager.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef DISPLAY_MANAGER_H_
+#define DISPLAY_MANAGER_H_
+
+#include <memory>
+
+class DisplayManager {
+public:
+    virtual ~DisplayManager();
+
+    struct DisplayInfo {
+        int horizontal_resolution;
+        int vertical_resolution;
+    };
+
+    virtual DisplayInfo display_info() const = 0;
+
+    static std::shared_ptr<DisplayManager> get();
+};
+
+void registerDisplayManager(const std::shared_ptr<DisplayManager> &mgr);
+
+#endif

external/android-emugl/host/libs/libOpenglRender/RenderControl.cpp

@@ -21,6 +21,7 @@
 #include "RenderThreadInfo.h"
 #include "ChecksumCalculatorThreadInfo.h"
 #include "LayerManager.h"
+#include "DisplayManager.h"
 
 #include "OpenGLESDispatch/EGLDispatch.h"
 
@@ -160,12 +161,10 @@ static EGLint rcGetFBParam(EGLint param)
 
     switch(param) {
         case FB_WIDTH:
-            // FIXME DISPLAY MANAGER!!
-            ret = 1920;
+            ret = DisplayManager::get()->display_info().horizontal_resolution;
             break;
         case FB_HEIGHT:
-        // FIXME DISPLAY MANAGER!!
-            ret = 1080;
+            ret = DisplayManager::get()->display_info().vertical_resolution;
             break;
         case FB_XDPI:
             ret = 72; // XXX: should be implemented
@@ -404,12 +403,12 @@ int rcGetNumDisplays() {
 
 int rcGetDisplayWidth(uint32_t display_id) {
     printf("%s: display_id=%d\n", __func__, display_id);
-    return 1920;
+    return DisplayManager::get()->display_info().horizontal_resolution;
 }
 
 int rcGetDisplayHeight(uint32_t display_id) {
     printf("%s: display_id=%d\n", __func__, display_id);
-    return 1080;
+    return DisplayManager::get()->display_info().vertical_resolution;
 }
 
 int rcGetDisplayDpiX(uint32_t display_id) {