WDEF sample: PowerPC support

Samples/WDEF/CMakeLists.txt

@@ -30,25 +30,44 @@ cmake_minimum_required(VERSION 2.8)
 
 # First, let's build a separate code resource:
 add_executable(WDEF wdef.c)
-set_target_properties(WDEF PROPERTIES
+
+if(CMAKE_SYSTEM_NAME MATCHES Retro68)
+    set_target_properties(WDEF PROPERTIES
+            # tell wdef.c that it is being compiled as a code resource
+        COMPILE_DEFINITIONS "COMPILING_AS_CODE_RESOURCE"
+        
+        COMPILE_OPTIONS -ffunction-sections # make things smaller
+
+            # set a linker flag that says we want a flat piece
+            # of code in a data file, specify entry point,
+            # and add -Wl,-gc-sections to make things smaller.
+        LINK_FLAGS "-Wl,--mac-flat -Wl,-eMYWINDOWDEFPROC -Wl,-gc-sections")
+    set(WDEF_R wdef.r)
+    set(WDEF_RESOURCE WDEF)
+elseif(CMAKE_SYSTEM_NAME MATCHES RetroPPC)
+    set_target_properties(WDEF PROPERTIES
+        COMPILE_OPTIONS -ffunction-sections # make things smaller
         # tell wdef.c that it is being compiled as a code resource
-    COMPILE_DEFINITIONS "COMPILING_AS_CODE_RESOURCE"
+        COMPILE_DEFINITIONS "COMPILING_AS_CODE_RESOURCE"
+        LINK_FLAGS " -Wl,-eMyWindowDefProc -Wl,-gc-sections"
+        )
+    set(WDEF_R wdefppc.r)
 
-    COMPILE_OPTIONS -ffunction-sections # make things smaller
+    add_custom_command(
-
+        OUTPUT WDEF.pef
-		# set a linker flag that says we want a flat piece
+        COMMAND ${MAKE_PEF} WDEF -o "WDEF.pef"
-		# of code in a data file, specify entry point,
+        DEPENDS WDEF)
-        # and add -Wl,-gc-sections to make things smaller.
+    set(WDEF_RESOURCE WDEF.pef)
-    LINK_FLAGS "-Wl,--mac-flat -Wl,-eMYWINDOWDEFPROC -Wl,-gc-sections")
+endif()
 
     # wrap the compiled WDEF into a resource
 add_custom_command(
     OUTPUT WDEF.rsrc.bin
     COMMAND ${REZ} -I ${REZ_INCLUDE_PATH}
-                    ${CMAKE_CURRENT_SOURCE_DIR}/wdef.r
+                    ${CMAKE_CURRENT_SOURCE_DIR}/${WDEF_R}
                     -o WDEF.rsrc.bin
                     
-    DEPENDS WDEF wdef.r)
+    DEPENDS ${WDEF_RESOURCE} ${WDEF_R})
     
 # Now build the application
 add_application(WDEFShell

Samples/WDEF/wdef.c

@@ -3,7 +3,9 @@
 #include <Fonts.h>
 
 #ifdef COMPILING_AS_CODE_RESOURCE
+#ifndef __PPC__
 #include <Retro68Runtime.h>
+#endif
 #include <LowMem.h>
 #endif
 
@@ -14,7 +16,9 @@ pascal long MyWindowDefProc(short varCode, WindowRef window, short message, long
     // First, our machine code doesn't yet know where in RAM it is located, so things
     // will crash as soon as we call a function or access a global variable.
     // The following call, part of libretro, fixes that:
+#ifndef __PPC__
     RETRO68_RELOCATE();
+#endif
 
     // Next, Quickdraw's global variables are stored as part of the application's
     // global variables. If we acces "qd.", we'll get our own copy, which QuickDraw knows
@@ -24,7 +28,7 @@ pascal long MyWindowDefProc(short varCode, WindowRef window, short message, long
     // alternatively, we could just avoid accessing QuickDraw globals. In our case, that would mean
     // using GetPort instead of qdPtr->thePort, and not using qdPtr->white and qdPtr->ltGray.
 #else
-    // We're part of the real application, we could be using qd. in the first place:
+    // We're part of the real application, we could be using `qd' in the first place:
     QDGlobalsPtr qdPtr = &qd;
 #endif
 
@@ -49,6 +53,7 @@ pascal long MyWindowDefProc(short varCode, WindowRef window, short message, long
 
                 MoveTo(r.left, r.top - 10);
                 HLock((Handle) peek->titleHandle);
+                //TextMode(srcOr);
                 DrawString(*peek->titleHandle);
                 HUnlock((Handle) peek->titleHandle);
             }

Samples/WDEF/wdef.r

@@ -1,5 +1,3 @@
-#include "Retro68.r"
-
 data 'WDEF' (129) {
     $$read("WDEF")
 };

Samples/WDEF/wdefppc.r

@@ -0,0 +1,9 @@
+#include "MixedMode.r"
+
+type 'WDEF' as 'rdes';
+
+resource 'WDEF' (129) {
+    0x00003BB0,                                     // ProcInfo
+    $$Read("WDEF.pef")                    // Specify name of PEF file
+};
+

Samples/WDEF/wdefshell.c

@@ -79,7 +79,13 @@ void InitCustomWDEF()
 
     Handle h = GetResource('WDEF', 128);
     HLock(h);
-    *(WindowDefProcPtr*)(*h + 6) = &MyWindowDefProc;
+    *(WindowDefUPP*)(*h + 6) = NewWindowDefUPP(&MyWindowDefProc);
+    // note: for 68K, the above is equivalent to:
+    //    *(WindowDefProcPtr*)(*h + 6) = &MyWindowDefProc;
+    // for PPC, it creates a routine descriptor data structure to get out of the emulator again.
+
+    // On PPC only, we could also bypass the emulator by putting the routine descriptor into the resource,
+    // and putting the pointer to the code into it here. This wouldn't work for the 68K version of this code, though.
     
     // By the way, this was the only part of this file relevant for dealing
     // with custom WDEFs.
@@ -222,6 +228,9 @@ void DoUpdate(WindowRef w)
     FillRect(&r, &qd.gray);
     FrameRect(&r);
 
+    MoveTo(100,100);
+    DrawString("\pHello, world.");
+
     EndUpdate(w);
 }