From 3e75a8e3fe937f6d003c80f2d495f3c09a7cd9cb Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Mon, 3 Nov 2014 23:27:47 -0800
Subject: [PATCH] GBA Input: Add input map loading

---
 src/gba/gba-input.c | 38 ++++++++++++++++++++++++++++++++++++++
 src/gba/gba-input.h |  4 ++++
 2 files changed, 42 insertions(+)

diff --git a/src/gba/gba-input.c b/src/gba/gba-input.c
index efa1faf2d..31d0feb26 100644
--- a/src/gba/gba-input.c
+++ b/src/gba/gba-input.c
@@ -1,10 +1,35 @@
 #include "gba-input.h"
 
+#include "util/configuration.h"
+
+#define SECTION_NAME_MAX 128
+#define KEY_NAME_MAX 32
+
 struct GBAInputMapImpl {
 	int* map;
 	uint32_t type;
 };
 
+static void _loadKey(struct GBAInputMap* map, uint32_t type, const struct Configuration* config, enum GBAKey key, const char* keyName) {
+	char sectionName[SECTION_NAME_MAX];
+	snprintf(sectionName, SECTION_NAME_MAX, "input.%c%c%c%c", type >> 24, type >> 16, type >> 8, type);
+	sectionName[SECTION_NAME_MAX - 1] = '\0';
+
+	char keyKey[KEY_NAME_MAX];
+	snprintf(keyKey, KEY_NAME_MAX, "key%s", keyName);
+
+	const char* value = ConfigurationGetValue(config, sectionName, keyKey);
+	if (!value) {
+		return;
+	}
+	char* end;
+	long intValue = strtol(value, &end, 10);
+	if (*end) {
+		return;
+	}
+	GBAInputBindKey(map, type, intValue, key);
+}
+
 void GBAInputMapInit(struct GBAInputMap* map) {
 	map->maps = 0;
 	map->numMaps = 0;
@@ -83,3 +108,16 @@ void GBAInputBindKey(struct GBAInputMap* map, uint32_t type, int key, enum GBAKe
 	}
 	impl->map[input] = key;
 }
+
+void GBAInputMapLoad(struct GBAInputMap* map, uint32_t type, const struct Configuration* config) {
+	_loadKey(map, type, config, GBA_KEY_A, "A");
+	_loadKey(map, type, config, GBA_KEY_B, "B");
+	_loadKey(map, type, config, GBA_KEY_L, "L");
+	_loadKey(map, type, config, GBA_KEY_R, "R");
+	_loadKey(map, type, config, GBA_KEY_START, "Start");
+	_loadKey(map, type, config, GBA_KEY_SELECT, "Select");
+	_loadKey(map, type, config, GBA_KEY_UP, "Up");
+	_loadKey(map, type, config, GBA_KEY_DOWN, "Down");
+	_loadKey(map, type, config, GBA_KEY_LEFT, "Left");
+	_loadKey(map, type, config, GBA_KEY_RIGHT, "Right");
+}
diff --git a/src/gba/gba-input.h b/src/gba/gba-input.h
index 684598db2..3fa3b9bd9 100644
--- a/src/gba/gba-input.h
+++ b/src/gba/gba-input.h
@@ -3,6 +3,8 @@
 
 #include "gba.h"
 
+struct Configuration;
+
 struct GBAInputMap {
 	struct GBAInputMapImpl* maps;
 	size_t numMaps;
@@ -14,4 +16,6 @@ void GBAInputMapDeinit(struct GBAInputMap*);
 enum GBAKey GBAInputMapKey(struct GBAInputMap*, uint32_t type, int key);
 void GBAInputBindKey(struct GBAInputMap*, uint32_t type, int key, enum GBAKey input);
 
+void GBAInputMapLoad(struct GBAInputMap*, uint32_t type, const struct Configuration*);
+
 #endif