From 0c82694f4782ad913b4d482f533f1e05f7219dc1 Mon Sep 17 00:00:00 2001
From: Neil Millstone
Date: Sat, 20 Jan 2007 17:29:20 +0000
Subject: Ported changes from branch-0-9-0 to fix grabRawScreen(), and palette
 corruption.

svn-id: r25129
---
 backends/platform/ds/arm9/source/dsmain.cpp     |  2 +-
 backends/platform/ds/arm9/source/osystem_ds.cpp | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

(limited to 'backends/platform/ds/arm9/source')

diff --git a/backends/platform/ds/arm9/source/dsmain.cpp b/backends/platform/ds/arm9/source/dsmain.cpp
index bb764bc75a..e0332f91b5 100644
--- a/backends/platform/ds/arm9/source/dsmain.cpp
+++ b/backends/platform/ds/arm9/source/dsmain.cpp
@@ -517,7 +517,7 @@ void displayMode8Bit() {
 	BG0_Y0 = 0;
 	
 	// Restore palette entry used by text in the front-end	
-	PALETTE_SUB[255] = savedPalEntry255;
+//	PALETTE_SUB[255] = savedPalEntry255;
 	
 	consoleInitDefault((u16*)SCREEN_BASE_BLOCK(0), (u16*)CHAR_BASE_BLOCK(1), 16);
 	consolePrintSet(0, 23);
diff --git a/backends/platform/ds/arm9/source/osystem_ds.cpp b/backends/platform/ds/arm9/source/osystem_ds.cpp
index 247b4e73de..70299ae5b2 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.cpp
+++ b/backends/platform/ds/arm9/source/osystem_ds.cpp
@@ -471,7 +471,19 @@ Common::SaveFileManager* OSystem_DS::getSavefileManager()
 
 bool OSystem_DS::grabRawScreen(Graphics::Surface* surf) {
 	surf->create(DS::getGameWidth(), DS::getGameHeight(), 1);
-	memcpy(surf->pixels, DS::get8BitBackBuffer(), DS::getGameWidth() * DS::getGameHeight());
+
+	// Ensure we copy using 16 bit quantities due to limitation of VRAM addressing
+	// TODO: Change this to work with the software scalar (hint: video ram format is different)
+	u16* image = (u16 *) DS::get8BitBackBuffer();
+	for (int y = 0; y <  DS::getGameHeight(); y++)
+	{
+		DC_FlushRange((image + (y * 512)), DS::getGameWidth());
+		for (int x = 0; x < DS::getGameWidth() >> 1; x++)
+		{
+			*(((u16 *) (surf->pixels)) + y * (DS::getGameWidth() >> 1) + x) = *(image + y * 256 + x);
+		}
+	}
+
 	return true;
 }
 
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