From 632316eef0b5c82598c8f7ad1685720570eebcd6 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Sat, 30 May 2015 17:42:18 -0700
Subject: [PATCH] GBA: Export to ACT

---
 src/gba/supervisor/export.c | 24 ++++++++++++++++++++++++
 src/gba/supervisor/export.h |  1 +
 2 files changed, 25 insertions(+)

diff --git a/src/gba/supervisor/export.c b/src/gba/supervisor/export.c
index a0dbbecd6..4ef29174c 100644
--- a/src/gba/supervisor/export.c
+++ b/src/gba/supervisor/export.c
@@ -55,3 +55,27 @@ bool GBAExportPaletteRIFF(struct VFile* vf, size_t entries, const uint16_t* colo
 
 	return true;
 }
+
+bool GBAExportPaletteACT(struct VFile* vf, size_t entries, const uint16_t* colors) {
+	if (entries > 256) {
+		return false;
+	}
+	size_t i;
+	for (i = 0; i < entries; ++i) {
+		uint8_t block[3] = {
+			GBA_R8(colors[i]),
+			GBA_G8(colors[i]),
+			GBA_B8(colors[i]),
+		};
+		if (vf->write(vf, block, 3) < 3) {
+			return false;
+		}
+	}
+	for (; i < 256; ++i) {
+		uint8_t block[3] = { 0, 0, 0 };
+		if (vf->write(vf, block, 3) < 3) {
+			return false;
+		}
+	}
+	return true;
+}
diff --git a/src/gba/supervisor/export.h b/src/gba/supervisor/export.h
index 0db0836b0..024e17618 100644
--- a/src/gba/supervisor/export.h
+++ b/src/gba/supervisor/export.h
@@ -11,5 +11,6 @@
 struct VFile;
 
 bool GBAExportPaletteRIFF(struct VFile* vf, size_t entries, const uint16_t* colors);
+bool GBAExportPaletteACT(struct VFile* vf, size_t entries, const uint16_t* colors);
 
 #endif