From b3a7f8f1fceddcd45ec62bcbf75ba128e4f84f5a Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Sun, 3 Feb 2013 19:26:34 -0500
Subject: Synchronise the controller status more spread out inside a rendered
 frame: * before rendering a background; * before rendering sprites; * while
 rendering more than 128 samples of audio at once ("Prefer fluid video"); *
 after every 16 scanlines of CPU execution instead of every 1; * while waiting
 for an audio buffer to become available; * while killing time between frames
 with fast-forward disabled.

Controller presses and releases are now combined in a DS button bitfield using a shorter 32-bit algorithm. See entry.cpp:NDSSFCAccumulateJoypad and #define ACCUMULATE_JOYPAD in the source.

This is still not suitable for playing platformers frame-perfectly, but it's much better than half a second of latency to press or release a button, and one still needs to press buttons a bit more than just light taps. I'd say 50 milliseconds is the latency now. Platformers requiring more precision can be played with frameskip 0.

DMA does not require double-buffered displaying, so synchronise the controller more often by disabling double-buffered displaying again.
---
 source/nds/gui.h | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'source/nds/gui.h')

diff --git a/source/nds/gui.h b/source/nds/gui.h
index 9df2ad2..b2eae62 100644
--- a/source/nds/gui.h
+++ b/source/nds/gui.h
@@ -24,11 +24,7 @@
 #include "fs_api.h"
 #include "gcheat.h"
 
-#ifdef DS2_DMA
-#define UP_SCREEN_UPDATE_METHOD   1
-#else
 #define UP_SCREEN_UPDATE_METHOD   0
-#endif
 #define DOWN_SCREEN_UPDATE_METHOD 2
 
 #define MAX_GAMEPAD_MAP 16
-- 
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