puzzles: update frontend for new upstream, misc. changes

The upstream code changed a little bit with regard to the request_keys()
API. Also, we save some bytes (especially on the c200v2) by compiling with
-ffunction-sections and -fdata-sections, which allows Net to fit once again.

Change-Id: I3ab30127169c73e4cd8996f0c12e1223ee18d79f

apps/plugins/puzzles/SOURCES

@@ -13,7 +13,7 @@ src/latin.c
 src/laydomino.c
 src/loopgen.c
 /*src/malloc.c*/ /* we have our own */
-src/maxflow.c
+src/matching.c
 src/midend.c
 src/misc.c
 src/penrose.c

apps/plugins/puzzles/SOURCES.games

@@ -45,7 +45,7 @@ src/untangle.c
 
 /* no c200v2 */
 #if PLUGIN_BUFFER_SIZE > 0x14000
-src/pearl.c
 src/loopy.c
+src/pearl.c
 src/solo.c
 #endif

apps/plugins/puzzles/puzzles.make

@@ -33,12 +33,14 @@ ifeq ($(MODELNAME), sansac200v2)
 PUZZLES_OPTIMIZE = -Os # tiny plugin buffer
 endif
 
-# we suppress all warnings
-PUZZLESFLAGS =  -I$(PUZZLES_SRCDIR)/dummy					\
-		$(filter-out -O%,$(PLUGINFLAGS)) $(PUZZLES_OPTIMIZE)		\
-		-Wno-unused-parameter -Wno-sign-compare -Wno-strict-aliasing -w	\
-		-DFOR_REAL -I$(PUZZLES_SRCDIR)/src -I$(PUZZLES_SRCDIR) -include	\
-		$(PUZZLES_SRCDIR)/rbcompat.h
+# we suppress all warnings with -w
+PUZZLESFLAGS = -I$(PUZZLES_SRCDIR)/dummy $(filter-out			\
+		-O%,$(PLUGINFLAGS)) $(PUZZLES_OPTIMIZE)			\
+		-Wno-unused-parameter -Wno-sign-compare			\
+		-Wno-strict-aliasing -DFOR_REAL				\
+		-I$(PUZZLES_SRCDIR)/src -I$(PUZZLES_SRCDIR) -include	\
+		$(PUZZLES_SRCDIR)/rbcompat.h -ffunction-sections	\
+		-fdata-sections -w
 
 $(PUZZLES_OBJDIR)/sgt-%.rock: $(PUZZLES_OBJDIR)/src/%.o $(PUZZLES_OBJDIR)/help/%.o $(PUZZLES_SHARED_OBJ) $(TLSFLIB)
 	$(call PRINTS,LD $(@F))$(CC) $(PLUGINFLAGS) -o $(PUZZLES_OBJDIR)/$*.elf \

apps/plugins/puzzles/rbcompat.h

@@ -4,6 +4,7 @@
 #include "plugin.h"
 #include "rbassert.h"
 #include "lib/pluginlib_exit.h"
+#include "lib/stdio_compat.h"
 
 #include <tlsf.h>
 
@@ -77,6 +78,4 @@ double acos_wrapper(double x);
 
 #define abs(x) ((x)<0?-(x):(x))
 
-/* work around compilation error */
-typedef void FILE;
 #endif

apps/plugins/puzzles/rockbox.c

@@ -1506,25 +1506,25 @@ static void send_click(int button, bool release)
 
 static int choose_key(void)
 {
-    char *game_keys = NULL;
+    int options = 0;
 
-    const game *gm = midend_which_game(me);
-    if(gm->request_keys)
-        game_keys = gm->request_keys(midend_get_params(me));
+    key_label *game_keys = midend_request_keys(me, &options);
 
-    if(!game_keys)
-        return;
+    if(!game_keys || !options)
+        return 0;
 
-    int options = strlen(game_keys);
     int sel = 0;
 
     while(1)
     {
-        midend_process_key(me, 0, 0, game_keys[sel]);
+        if(timer_on)
+            timer_cb();
+        midend_process_key(me, 0, 0, game_keys[sel].button);
         midend_redraw(me);
         rb->lcd_update();
+        rb->yield();
 
-        int button = rb->button_get(true);
+        int button = rb->button_get_w_tmo(timer_on ? TIMER_INTERVAL : -1);
         switch(button)
         {
         case BTN_LEFT:
@@ -1538,11 +1538,9 @@ static int choose_key(void)
         case BTN_PAUSE:
             return -1;
         case BTN_FIRE:
-            midend_force_redraw(me);
-            rb->lcd_update();
-            free(game_keys);
+            free_keys(game_keys, options);
 
-            /* the key has already been sent to the game */
+            /* the key has already been sent to the game, just return */
             return 0;
         }
     }