From 2834bae31838aadbb4f9758f5d5af7827cefc4e6 Mon Sep 17 00:00:00 2001
From: TuxSH <1922548+TuxSH@users.noreply.github.com>
Date: Fri, 8 May 2020 20:51:41 +0100
Subject: [PATCH] rosalina screenshots: improve conversion time by another 10%

---
 sysmodules/rosalina/source/draw.c  | 3 +++
 sysmodules/rosalina/source/menus.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/sysmodules/rosalina/source/draw.c b/sysmodules/rosalina/source/draw.c
index 724d6fd..06ba87b 100644
--- a/sysmodules/rosalina/source/draw.c
+++ b/sysmodules/rosalina/source/draw.c
@@ -333,7 +333,10 @@ static void Draw_ConvertFrameBufferLinesKernel(const FrameBufferConvertArgs *arg
     for (u32 y = args->startingLine; y < args->startingLine + args->numLines; y++)
     {
         for(u32 x = 0; x < width; x++)
+        {
+            __builtin_prefetch(addr + x * stride + y * formatSizes[fmt], 0, 3);
             Draw_ConvertPixelToBGR8(args->buf + (x + width * y) * 3 , addr + x * stride + y * formatSizes[fmt], fmt);
+        }
     }
 }
 
diff --git a/sysmodules/rosalina/source/menus.c b/sysmodules/rosalina/source/menus.c
index 7d3e5c7..8625c36 100644
--- a/sysmodules/rosalina/source/menus.c
+++ b/sysmodules/rosalina/source/menus.c
@@ -279,7 +279,7 @@ void RosalinaMenu_TakeScreenshot(void)
     TRY(RosalinaMenu_WriteScreenshot(&file, false, true));
     TRY(IFile_Close(&file));
 
-    if(false && (GPU_FB_TOP_FMT & 0x20) && (Draw_GetCurrentFramebufferAddress(true, true) != Draw_GetCurrentFramebufferAddress(true, false)))
+    if((GPU_FB_TOP_FMT & 0x20) && (Draw_GetCurrentFramebufferAddress(true, true) != Draw_GetCurrentFramebufferAddress(true, false)))
     {
         sprintf(filename, "/luma/screenshots/%04lu-%02lu-%02lu_%02lu-%02lu-%02lu.%03llu_top_right.bmp", year, month, days, hours, minutes, seconds, milliseconds);
         TRY(IFile_Open(&file, archiveId, fsMakePath(PATH_EMPTY, ""), fsMakePath(PATH_ASCII, filename), FS_OPEN_CREATE | FS_OPEN_WRITE));