From e25aae5a974a6fc300b217f32bcca2f1f812af85 Mon Sep 17 00:00:00 2001
From: plutoo <plutoo@universe>
Date: Wed, 21 Feb 2018 08:38:22 +0100
Subject: [PATCH] Workaround for burn in issue

---
 nx/include/switch/runtime/devices/console.h |  1 +
 nx/source/runtime/devices/console.c         | 23 +++++++++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/nx/include/switch/runtime/devices/console.h b/nx/include/switch/runtime/devices/console.h
index 7c7f3726..9ed7b748 100644
--- a/nx/include/switch/runtime/devices/console.h
+++ b/nx/include/switch/runtime/devices/console.h
@@ -75,6 +75,7 @@ typedef struct PrintConsole
 	ConsoleFont font;        ///< Font of the console
 
 	u32 *frameBuffer;        ///< Framebuffer address
+	u32 *frameBuffer2;       ///< Framebuffer address
 
 	int cursorX;             ///< Current X location of the cursor (as a tile offset by default)
 	int cursorY;             ///< Current Y location of the cursor (as a tile offset by default)
diff --git a/nx/source/runtime/devices/console.c b/nx/source/runtime/devices/console.c
index 8ab6b144..eba57fa6 100644
--- a/nx/source/runtime/devices/console.c
+++ b/nx/source/runtime/devices/console.c
@@ -47,6 +47,7 @@ PrintConsole defaultConsole =
 		256 //number of characters in the font set
 	},
 	(u32*)NULL,
+	(u32*)NULL,
 	0,0,	//cursorX cursorY
 	0,0,	//prevcursorX prevcursorY
 	160,		//console width
@@ -123,6 +124,8 @@ static void consoleCls(char mode) {
 		}
 	}
 	gfxFlushBuffers();
+	gfxSwapBuffers();
+	gfxWaitForVsync();
 }
 //---------------------------------------------------------------------------------
 static void consoleClearLine(char mode) {
@@ -176,6 +179,8 @@ static void consoleClearLine(char mode) {
 		}
 	}
 	gfxFlushBuffers();
+	gfxSwapBuffers();
+	gfxWaitForVsync();
 }
 
 
@@ -547,13 +552,16 @@ PrintConsole* consoleInit(PrintConsole* console) {
 
 	console->consoleInitialised = 1;
 
-	gfxSetMode(GfxMode_TiledSingle);
+	gfxSetMode(GfxMode_TiledDouble);
+
+	console->frameBuffer  = (u32*)gfxGetFramebuffer(NULL, NULL);
+	gfxSwapBuffers();
+	console->frameBuffer2 = (u32*)gfxGetFramebuffer(NULL, NULL);
+
 	gfxFlushBuffers();
+	gfxSwapBuffers();
 	gfxWaitForVsync();
 
-	console->frameBuffer = (u32*)gfxGetFramebuffer(NULL, NULL);
-
-
 	consoleCls('2');
 
 	return currentConsole;
@@ -625,6 +633,9 @@ static void newRow(void) {
 				to = &currentConsole->frameBuffer[gfxGetFramebufferDisplayOffset(x + i, y + j)];
 				from = &currentConsole->frameBuffer[gfxGetFramebufferDisplayOffset(x + i, y + 8 + j)];
 				*to = *from;
+				to = &currentConsole->frameBuffer2[gfxGetFramebufferDisplayOffset(x + i, y + j)];
+				from = &currentConsole->frameBuffer2[gfxGetFramebufferDisplayOffset(x + i, y + 8 + j)];
+				*to = *from;
 			}
 		}
 
@@ -676,6 +687,8 @@ void consoleDrawChar(int c) {
 		for (j=0;j<8;j++) {
 			screen = &currentConsole->frameBuffer[gfxGetFramebufferDisplayOffset(x + i, y + j)];
 			if (bval >> (8*j) & mask) { *screen = fg; }else{ *screen = bg; }
+			screen = &currentConsole->frameBuffer2[gfxGetFramebufferDisplayOffset(x + i, y + j)];
+			if (bval >> (8*j) & mask) { *screen = fg; }else{ *screen = bg; }
 		}
 		mask >>= 1;
 	}
@@ -730,6 +743,8 @@ void consolePrintChar(int c) {
 		case 13:
 			currentConsole->cursorX  = 0;
 			gfxFlushBuffers();
+			gfxSwapBuffers();
+			gfxWaitForVsync();
 			break;
 		default:
 			consoleDrawChar(c);