From 6cf749c82c0981ec58f09f079aa57c0daac67c59 Mon Sep 17 00:00:00 2001
From: King_DuckZ <king_duckz@gmx.com>
Date: Wed, 6 Aug 2014 21:04:57 +0200
Subject: [PATCH] Add the call to bcm_host_init/deinit() on raspberry pi.

---
 CMakeLists.txt  | 24 ++++++++++++++++++++++--
 src/sdlmain.cpp | 30 +++++++++++++++++++++++++++++-
 2 files changed, 51 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fef7a7d..f6fe71e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,10 +7,14 @@ set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++11 -Wall -Wextra
 
 option(WITH_BUILTIN_PHYSFS "Force using the version of PhysFS accompanying the code even if a system library is available" OFF)
 option(FORCE_OPENGLES "Try to chose the openGL ES renderer if available. Enable this on Raspberry Pi" OFF)
+option(RASPBERRY_PI "Compile for Raspberry Pi" OFF)
 
-if (FORCE_OPENGLES)
+if (FORCE_OPENGLES OR RASPBERRY_PI)
 	add_definitions(-DFORCE_OPENGLES)
-endif (FORCE_OPENGLES)
+	if (RASPBERRY_PI)
+		add_definitions(-DRASPBERRY_PI)
+	endif(RASPBERRY_PI)
+endif (FORCE_OPENGLES OR RASPBERRY_PI)
 
 include(FindPkgConfig)
 PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
@@ -35,6 +39,16 @@ add_definitions(
 	-DWITH_VERBOSE_COLLIDER
 )
 
+if (RASPBERRY_PI)
+	message(STATUS "Will build for Raspberry Pi")
+	include_directories(SYSTEM
+		/opt/vc/include
+	)
+	link_directories(
+		/opt/vc/lib
+	)
+endif (RASPBERRY_PI)
+
 include_directories(SYSTEM
 	${SDL2_INCLUDE_DIR}
 	${PNG_INCLUDE_DIRS}
@@ -93,3 +107,9 @@ target_link_libraries(${PROJECT_NAME}
 	${PHYSFS_LIBRARY}
 	${PNG_LIBRARIES}
 )
+
+if (RASPBERRY_PI)
+	target_link_libraries(${PROJECT_NAME}
+		bcm_host
+	)
+endif(RASPBERRY_PI)
diff --git a/src/sdlmain.cpp b/src/sdlmain.cpp
index 4d3f84c..1f33b8e 100644
--- a/src/sdlmain.cpp
+++ b/src/sdlmain.cpp
@@ -28,6 +28,10 @@
 #include <cstring>
 #include <utility>
 
+#if defined(RASPBERRY_PI)
+#include <bcm_host.h>
+#endif
+
 namespace cloonel {
 	namespace {
 		///----------------------------------------------------------------------
@@ -74,6 +78,9 @@ namespace cloonel {
 		SizeRatio sizeratio;
 		ObserversManager<SizeNotifiableBase*> resChangeNotifList;
 		bool initialized;
+#if defined(RASPBERRY_PI)
+		bool bcmInitialized;
+#endif
 	};
 
 	///------------------------------------------------------------------------
@@ -83,12 +90,19 @@ namespace cloonel {
 		m_localData(new LocalData)
 	{
 		m_localData->sizeratio.SetOriginal(static_cast<float2>(parReferenceRes), static_cast<float2>(parRes));
+		m_localData->initialized = false;
+#if defined(RASPBERRY_PI)
+		m_localData->bcmInitialized = false;
+#endif
 	}
 
 	///------------------------------------------------------------------------
 	///------------------------------------------------------------------------
 	SDLMain::~SDLMain() noexcept {
 		ClearIFN(*m_localData);
+#if defined(RASPBERRY_PI)
+		assert(not m_localData->bcmInitialized);
+#endif
 	}
 
 	///------------------------------------------------------------------------
@@ -109,6 +123,12 @@ namespace cloonel {
 			throw std::runtime_error(SDL_GetError());
 		parInitSDL.initialized = true;
 
+#if defined(RASPBERRY_PI)
+		assert(not parInitSDL.bcmInitialized);
+		bcm_host_init();
+		parInitSDL.bcmInitialized = true;
+#endif
+
 #if defined(FORCE_OPENGLES)
 		SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
 #endif
@@ -134,8 +154,16 @@ namespace cloonel {
 			SDL_DestroyRenderer(parInitSDL.renderer);
 		if (parInitSDL.window)
 			SDL_DestroyWindow(parInitSDL.window);
-		if (parInitSDL.initialized)
+		if (parInitSDL.initialized) {
+			parInitSDL.initialized = false;
 			SDL_Quit();
+		}
+#if defined(RASPBERRY_PI)
+		if (parInitSDL.bcmInitialized) {
+			parInitSDL.bcmInitialized = false;
+			bcm_host_deinit();
+		}
+#endif
 	}
 
 	///------------------------------------------------------------------------