Move all platform-specific code to src/platform/.

Without resources, it makes no sense anymore to keep these in
separate subdirectories: unixutil* is shared between Cocoa
and GTK ports, and gloffscreen* should be shared between all ports
(but it's still platform-specific).

src/CMakeLists.txt

@@ -33,10 +33,10 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
 
 if(WIN32)
     set(util_SOURCES
-        win32/w32util.cpp)
+        platform/w32util.cpp)
 else()
     set(util_SOURCES
-        unix/unixutil.cpp)
+        platform/unixutil.cpp)
 endif()
 
 # libslvs
@@ -129,7 +129,7 @@ set(generated_SOURCES
 
 if(WIN32)
     set(platform_SOURCES
-        win32/w32main.cpp)
+        platform/w32main.cpp)
 
     set(platform_LIBRARIES
         comctl32)
@@ -138,8 +138,8 @@ elseif(APPLE)
         -fobjc-arc)
 
     set(platform_SOURCES
-        cocoa/cocoamain.mm
-        unix/gloffscreen.cpp)
+        platform/cocoamain.mm
+        platform/gloffscreen.cpp)
 
     set(platform_BUNDLED_LIBS
         ${PNG_LIBRARIES}
@@ -167,8 +167,8 @@ elseif(HAVE_GTK)
         ${GLEW_CFLAGS_OTHER})
 
     set(platform_SOURCES
-        gtk/gtkmain.cpp
-        unix/gloffscreen.cpp)
+        platform/gtkmain.cpp
+        platform/gloffscreen.cpp)
 
     set(platform_LIBRARIES
         ${GTKMM_LIBRARIES}

src/export.cpp

@@ -8,7 +8,7 @@
 //-----------------------------------------------------------------------------
 #include "solvespace.h"
 #ifndef WIN32
-#include <unix/gloffscreen.h>
+#include <platform/gloffscreen.h>
 #endif
 #include <png.h>
 

src/platform/cocoamain.mm

@@ -1,7 +1,7 @@
 //-----------------------------------------------------------------------------
 // Our main() function, and Cocoa-specific stuff to set up our windows and
 // otherwise handle our interface to the operating system. Everything
-// outside gtk/... should be standard C++ and OpenGL.
+// outside platform/... should be standard C++ and OpenGL.
 //
 // Copyright 2015 <whitequark@whitequark.org>
 //-----------------------------------------------------------------------------
@@ -14,7 +14,7 @@
 #include <map>
 
 #include "solvespace.h"
-#include "../unix/gloffscreen.h"
+#include "gloffscreen.h"
 #include <config.h>
 
 using SolveSpace::dbp;

src/platform/gtkmain.cpp

@@ -1,7 +1,7 @@
 //-----------------------------------------------------------------------------
-// Our main() function, and GTK3-specific stuff to set up our windows and
+// Our main() function, and GTK2/3-specific stuff to set up our windows and
 // otherwise handle our interface to the operating system. Everything
-// outside gtk/... should be standard C++ and OpenGL.
+// outside platform/... should be standard C++ and OpenGL.
 //
 // Copyright 2015 <whitequark@whitequark.org>
 //-----------------------------------------------------------------------------
@@ -52,7 +52,7 @@
 
 #include "solvespace.h"
 #include "config.h"
-#include "../unix/gloffscreen.h"
+#include "gloffscreen.h"
 
 #ifdef HAVE_SPACEWARE
 #   include <spnav.h>

src/platform/w32main.cpp

@@ -1,7 +1,7 @@
 //-----------------------------------------------------------------------------
 // Our WinMain() functions, and Win32-specific stuff to set up our windows
 // and otherwise handle our interface to the operating system. Everything
-// outside win32/... should be standard C++ and gl.
+// outside platform/... should be standard C++ and gl.
 //
 // Copyright 2008-2013 Jonathan Westhues.
 //-----------------------------------------------------------------------------