fix graphics flickering

fix rxTools

Author: Cpasjuste

source/arm9/stage2/data/stage2.bin

@@ -4,7 +4,7 @@ ENTRY(_start)
 
 MEMORY
   {
-  ram : ORIGIN = 0x08006000, LENGTH = 0x10000K
+  ram : ORIGIN = 0x21000000, LENGTH = 0x10000K
   }
 
 SECTIONS

source/arm9/stage2/payload/payload_stage2.ld

@@ -1,12 +1,9 @@
 #include "common.h"
 
-#define PTR_TOP_SCREEN				0x18300000
-#define PTR_BOT_SCREEN				0x18346500
-
 #define PTR_PAYLOAD_MAIN        0x23F00000
 #define PTR_PAYLOAD_MAIN_DATA   0x20000000
 #define PTR_PAYLOAD_SIZE_MAX    0x00100000
-#define PTR_PAYLOAD_STAGE2      0x08006000
+#define PTR_PAYLOAD_STAGE2      0x21000000
 
 int main() 
 {
@@ -23,9 +20,9 @@ int main()
 	*(volatile uint32_t*)0x80FFFDC = 1;    // framebuffer select bottom
 
 	//cakehax
-	*(u32*)0x23FFFE00 = PTR_TOP_SCREEN;
-	*(u32*)0x23FFFE04 = PTR_TOP_SCREEN;
-	*(u32*)0x23FFFE08 = PTR_BOT_SCREEN;
+	*(u32*)0x23FFFE00 = 0x18300000;
+	*(u32*)0x23FFFE04 = 0x18300000;
+	*(u32*)0x23FFFE08 = 0x18346500;
 
 	((void (*)())PTR_PAYLOAD_MAIN)();
 

source/arm9/stage2/payload/source/main.c

@@ -225,7 +225,7 @@ void loadBg(gfxScreen_t screen) {
     }
 
 #ifdef ARM9
-    u8 *bg = screen == GFX_TOP ? PTR_BG_TOP : PTR_BG_BOT;
+    u8 *bg = screen == GFX_TOP ? PTR_TOP_BG_BUF : PTR_BOT_BG_BUF;
 #else
     u8 *bg = malloc(size);
 #endif

source/config_new.c

@@ -15,10 +15,10 @@
 u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* height) {
     if(screen == GFX_TOP) {
         *width = 240; *height = 400;
-        return PTR_TOP_SCREEN;
+        return PTR_TOP_SCREEN_BUF; //PTR_TOP_SCREEN;
     } else {
         *width = 240; *height = 320;
-        return PTR_BOT_SCREEN;
+        return PTR_BOT_SCREEN_BUF;//PTR_BOT_SCREEN;
     }
 }
 #endif
@@ -167,20 +167,15 @@ void gfxClearTop(u8 top1[3], u8 top2[3]) {
     gfxFillColorGradient(GFX_TOP, GFX_LEFT, top1, top2);
 }
 
-void gfxClearTopRight(u8 top1[3], u8 top2[3]) {
-    gfxFillColorGradient(GFX_TOP, GFX_RIGHT, top1, top2);
-}
-
 void gfxClearBot(u8 bot[8]) {
     gfxFillColor(GFX_BOTTOM, GFX_LEFT, bot);
 }
 
-void gfxClearBotRight(u8 bot[8]) {
-    gfxFillColor(GFX_BOTTOM, GFX_RIGHT, bot);
-}
-
 void gfxSwap() {
-#ifndef ARM9
+#ifdef ARM9
+    memcpy(PTR_TOP_SCREEN, PTR_TOP_SCREEN_BUF, TOP_SCREEN_SIZE);
+    memcpy(PTR_BOT_SCREEN, PTR_BOT_SCREEN_BUF, BOT_SCREEN_SIZE);
+#else
     gfxFlushBuffers();
     gfxSwapBuffers();
     gspWaitForVBlank();

source/gfx.c

@@ -3,7 +3,8 @@
 #ifdef ARM9
 #include "arm9/source/common.h"
 u8* gfxGetFramebuffer(gfxScreen_t screen, gfx3dSide_t side, u16* width, u16* height);
-
+#define TOP_SCREEN_SIZE (400*240*3)
+#define BOT_SCREEN_SIZE (320*240*3)
 #else
 #include <3ds.h>
 #endif
@@ -28,10 +29,6 @@ void gfxDrawRectangle(gfxScreen_t screen, gfx3dSide_t side, u8 rgbColor[3], s16
 
 void gfxClearTop(u8 top1[3], u8 top2[3]);
 
-void gfxClearTopRight(u8 top1[3], u8 top2[3]);
-
-void gfxClearBotRight(u8 bot[8]);
-
 void gfxClearBot(u8 bot[8]);
 
 void gfxSwap();

source/gfx.h

@@ -5,15 +5,17 @@
 #ifndef CTRBOOTMANAGER_MEMORY_H
 #define CTRBOOTMANAGER_MEMORY_H
 
-#define PTR_TOP_SCREEN         (u8*)(0x18300000)
-#define PTR_BOT_SCREEN             (u8*)(0x18346500)
+#define PTR_TOP_SCREEN          (u8*)(*(u32*)0x23FFFE00)
+#define PTR_BOT_SCREEN          (u8*)(*(u32*)0x23FFFE08)
+#define PTR_TOP_SCREEN_BUF      (u8*)(0x2207E700)
+#define PTR_BOT_SCREEN_BUF      (u8*)(0x220C4A00)
+
+#define PTR_TOP_BG_BUF          (u8*)(0x22000000)
+#define PTR_BOT_BG_BUF          (u8*)(0x22046300)
 
 #define PTR_PAYLOAD_MAIN        0x23F00000
 #define PTR_PAYLOAD_MAIN_DATA   0x20000000
 #define PTR_PAYLOAD_SIZE_MAX    0x00100000
-#define PTR_PAYLOAD_STAGE2      0x08006000
-
-#define PTR_BG_TOP              (u8*)(0x23FFFE00)
-#define PTR_BG_BOT              (u8*)(0x24046300)
+#define PTR_PAYLOAD_STAGE2      0x21000000
 
 #endif //CTRBOOTMANAGER_MEMORY_H