From 75b57f1567a7c758694ef0bec33902e4752ca0e6 Mon Sep 17 00:00:00 2001
From: aliaspider <aliaspider@gmail.com>
Date: Thu, 12 Nov 2015 14:57:26 +0100
Subject: [PATCH] (3ds) improve performance when using video filters by
 allocating the output buffer in linear memory.

---
 gfx/video_driver.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gfx/video_driver.c b/gfx/video_driver.c
index 00a96f0e45..1bdc9435f1 100644
--- a/gfx/video_driver.c
+++ b/gfx/video_driver.c
@@ -285,7 +285,11 @@ bool video_driver_set_shader(enum rarch_shader_type type,
 static void deinit_video_filter(void)
 {
    rarch_softfilter_free(video_state.filter.filter);
+#ifdef _3DS
+   linearFree(video_state.filter.buffer);
+#else
    free(video_state.filter.buffer);
+#endif
    memset(&video_state.filter, 0, sizeof(video_state.filter));
 }
 
@@ -344,7 +348,11 @@ static void init_video_filter(enum retro_pixel_format colfmt)
       sizeof(uint32_t) : sizeof(uint16_t);
 
    /* TODO: Aligned output. */
+#ifdef _3DS
+   video_state.filter.buffer = linearMemAlign(width * height * video_state.filter.out_bpp, 0x80);
+#else
    video_state.filter.buffer = malloc(width * height * video_state.filter.out_bpp);
+#endif
    if (!video_state.filter.buffer)
       goto error;