Add DSi-Only screen

arm9/Makefile

@@ -18,7 +18,7 @@ BUILD		:=	build
 SOURCES		:=	source
 INCLUDES	:=	include
 DATA		:=
-
+GRAPHICS	:=  ../gfx
 
 #---------------------------------------------------------------------------------
 # options for code generation
@@ -59,12 +59,14 @@ export ARM9ELF	:=	$(CURDIR)/$(TARGET).elf
 export DEPSDIR := $(CURDIR)/$(BUILD)
 
 export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+					$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir)) \
 					$(foreach dir,$(DATA),$(CURDIR)/$(dir))
  
 CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
 CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
 SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
 BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+PNGFILES	:=	$(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.png)))
  
 #---------------------------------------------------------------------------------
 # use CXX for linking C++ projects, CC for standard C
@@ -81,6 +83,7 @@ endif
 #---------------------------------------------------------------------------------
 
 export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+					$(PNGFILES:.png=.o) \
 					$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
  
 export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
@@ -120,6 +123,17 @@ $(ARM9ELF)	:	$(OFILES)
 	@echo $(notdir $<)
 	@$(bin2o)
 
+#---------------------------------------------------------------------------------
+# This rule creates assembly source files using grit
+# grit takes an image file and a .grit describing how the file is to be processed
+# add additional rules like this for each image extension
+# you use in the graphics folders
+#---------------------------------------------------------------------------------
+%.s %.h   : %.png %.grit
+#---------------------------------------------------------------------------------
+	grit $< -fts -o$*
+
+
 -include $(DEPSDIR)/*.d
  
 #---------------------------------------------------------------------------------------

arm9/source/arm9.c

@@ -244,6 +244,9 @@ int verifyNocashFooter(nocash_footer_t *footer){
 }
 
 int main(void) {
+	extern void dsiOnly(void);
+	dsiOnly();
+
 	consoleDemoInit();
 	iprintf("SafeNANDManager v1.0\n");
 	iprintf("by Rocket Robz\n");

arm9/source/dsi_only.c

@@ -0,0 +1,53 @@
+#include <nds.h>
+#include "dsiOnly_top.h"
+#include "dsiOnly_bot.h"
+
+static void dsiOnly_setBrightness(u8 screen, s8 bright) {
+	u16 mode = 1 << 14;
+
+	if (bright < 0) {
+		mode = 2 << 14;
+		bright = -bright;
+	}
+	if (bright > 31) {
+		bright = 31;
+	}
+	*(u16*)(0x0400006C + (0x1000 * screen)) = bright + mode;
+}
+
+void dsiOnly(void) {
+	if (isDSiMode()) return;	// Proceed running on DSi
+
+	*(u16*)0x0400006C |= BIT(14);
+	*(u16*)0x0400006C &= BIT(15);
+	dsiOnly_setBrightness(0, 31);
+	dsiOnly_setBrightness(1, 31);
+
+	videoSetMode(MODE_4_2D);
+	videoSetModeSub(MODE_4_2D);
+
+	vramSetBankA(VRAM_A_MAIN_BG);
+	vramSetBankB(VRAM_B_MAIN_BG);
+	vramSetBankC(VRAM_C_SUB_BG);
+	vramSetBankD(VRAM_D_LCD);
+
+	// Display DSi Only screen
+	int bg3 = bgInit(3, BgType_Bmp8, BgSize_B8_256x256, 1, 0);
+	decompress(dsiOnly_topBitmap, bgGetGfxPtr(bg3), LZ77Vram);
+	for (int i = 0; i < 16; i++) {
+		BG_PALETTE[i] = dsiOnly_topPal[i];
+	}
+
+	int bg3sub = bgInitSub(3, BgType_Bmp8, BgSize_B8_256x256, 1, 0);
+	decompress(dsiOnly_botBitmap, bgGetGfxPtr(bg3sub), LZ77Vram);
+	for (int i = 0; i < 16; i++) {
+		BG_PALETTE_SUB[i] = dsiOnly_botPal[i];
+	}
+
+	dsiOnly_setBrightness(0, 0);
+	dsiOnly_setBrightness(1, 0);
+
+	while (1) {
+		swiWaitForVBlank();
+	}
+}

gfx/dsiOnly_bot.grit

@@ -0,0 +1,12 @@
+-W3
+#bitmap mode
+-gb
+
+# disable alpha and set opaque bit for all pixels
+-gT!
+
+# use lz77 compression
+-gzl
+
+# Set the bit depth to 8
+-gB8

gfx/dsiOnly_top.grit

@@ -0,0 +1,12 @@
+-W3
+#bitmap mode
+-gb
+
+# disable alpha and set opaque bit for all pixels
+-gT!
+
+# use lz77 compression
+-gzl
+
+# Set the bit depth to 8
+-gB8