makefile stuff to generate bins from graphics automatically.

.gitignore

@@ -3,4 +3,5 @@
 *.sav
 *.bak
 .DS_Store
-build/
+build/
+generated/

Makefile

@@ -26,7 +26,8 @@ SOURCES		:= source
 INCLUDES	:= include
 DATA		:= data
 SOUND		:= sound
-
+GRAPHICS	:= graphics
+GENERATED	:= generated
 #---------------------------------------------------------------------------------
 # options for code generation
 #---------------------------------------------------------------------------------
@@ -68,7 +69,8 @@ export OUTPUT	:=	$(CURDIR)/$(TARGET)
 
 export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
 			$(foreach dir,$(DATA),$(CURDIR)/$(dir)) \
-			$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir))
+			$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir)) \
+			$(CURDIR)/$(GENERATED)
 
 export DEPSDIR	:=	$(CURDIR)/$(BUILD)
 
@@ -83,6 +85,15 @@ ifneq ($(strip $(SOUND)),)
 	BINFILES += soundbank.bin
 endif
 
+ifneq ($(strip $(GRAPHICS)),)
+	export GRAPHICSFILES	:=	$(foreach dir,$(notdir $(wildcard $(GRAPHICS)/*.png)),$(CURDIR)/$(GRAPHICS)/$(dir))
+endif
+
+# Add generated bin files if they exist
+ifneq ($(wildcard $(GENERATED)/*.bin),)
+	BINFILES += $(notdir $(wildcard $(GENERATED)/*.bin))
+endif
+
 #---------------------------------------------------------------------------------
 # use CXX for linking C++ projects, CC for standard C
 #---------------------------------------------------------------------------------
@@ -111,11 +122,11 @@ export INCLUDE	:=	$(foreach dir,$(INCLUDES),-iquote $(CURDIR)/$(dir)) \
 
 export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
 
-.PHONY: $(BUILD) clean
+.PHONY: $(BUILD) clean process-images process-binaries
 
 #---------------------------------------------------------------------------------
-$(BUILD):
-	@[ -d $@ ] || mkdir -p $@
+$(BUILD): process-images process-binaries
+	@[ -d $(BUILD) ] || mkdir -p $(BUILD)
 	@cp $(SOURCES)/*.h $(BUILD)/ 2>/dev/null || true
 	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
 
@@ -125,6 +136,32 @@ clean:
 	@rm -fr $(BUILD) $(TARGET).elf $(TARGET).gba
 
 
+process-images: $(GRAPHICSFILES)
+	@[ -d $(GENERATED) ] || mkdir -p $(GENERATED)
+	@echo "Processing ALL images"
+	@for img in $^; do \
+		depth=$$(magick identify -format "%[depth]" $$img); \
+		base=$$(basename $$img .png); \
+		if [ "$$depth" = "8" ]; then \
+			$(MAKE) $${base}_8.bin; \
+		else \
+			echo "Processing image $$base with depth $$depth"; \
+			$(MAKE) $${base}_16.bin; \
+		fi \
+	done
+
+# Rule for 8-bit images
+%_8.bin %_8.h: %.png
+	@echo "Processing 8-bit image $<"
+	@magick $< -channel-fx "red=>blue,blue=>red" $(GENERATED)/$*_8.temp.png
+	@grit $(GENERATED)/$*_8.temp.png -gb -gB8 -p -ftb -o $(GENERATED)/$*_8
+	@rm $(GENERATED)/$*_8.temp.png
+
+# Rule for 16-bit images
+%_16.bin %_16.h: %.png
+	@echo "Processing 16-bit image $<"
+	@grit $< -gb -gB16 -ftb -o $(GENERATED)/$*_16
+
 #---------------------------------------------------------------------------------
 else
 
@@ -148,6 +185,7 @@ $(OFILES_SOURCES) : $(HFILES)
 #---------------------------------------------------------------------------------
 soundbank.bin soundbank.h : $(MODFILES) $(SFXFILES)
 #---------------------------------------------------------------------------------
+	@echo "Generating soundbank..."
 	@mmutil $^ -osoundbank.bin -hsoundbank.h
 
 #---------------------------------------------------------------------------------

source/main.c

@@ -9,9 +9,8 @@
 #include <maxmod.h>
 #include <mm_types.h>
 
-// #include "intro_bin.h"
-#include "intro-8bit_img_bin.h"
-#include "intro-8bit_pal_bin.h"
+#include "splash_8_img_bin.h"
+#include "splash_8_pal_bin.h"
 
 // Define any soundbank includes here
 #include "soundbank.h"
@@ -72,9 +71,9 @@ void loadIntroScreen(void) {
 
     // Load the palette
     // Palette size needs to be in 16-bit units (divide by 2)
-    DMA3COPY(intro_8bit_pal_bin, BG_PALETTE, intro_8bit_pal_bin_size >> 1);
+    DMA3COPY(splash_8_pal_bin, BG_PALETTE, splash_8_pal_bin_size >> 1);
     
     // Copy image data to first frame buffer
     // Image size needs to be in 16-bit units (divide by 2)
-    DMA3COPY(intro_8bit_img_bin, (void*)VRAM, intro_8bit_img_bin_size >> 1);
+    DMA3COPY(splash_8_img_bin, (void*)VRAM, splash_8_img_bin_size >> 1);
 }