From b36e41cb7117757011e6f1ccc476ccc806219a58 Mon Sep 17 00:00:00 2001
From: Juan Linietsky <reduzio@gmail.com>
Date: Mon, 6 Apr 2015 21:48:20 -0300
Subject: Added a PVRTC encoder for iOS

---
 drivers/pvr/PvrTcPacket.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 drivers/pvr/PvrTcPacket.h

(limited to 'drivers/pvr/PvrTcPacket.h')

diff --git a/drivers/pvr/PvrTcPacket.h b/drivers/pvr/PvrTcPacket.h
new file mode 100644
index 0000000000..ac3b6a4dd1
--- /dev/null
+++ b/drivers/pvr/PvrTcPacket.h
@@ -0,0 +1,65 @@
+//============================================================================
+//
+// Modulation data specifies weightings of colorA to colorB for each pixel
+//
+// For mode = 0
+//	00: 0/8
+//  01: 3/8
+//  10: 5/8
+//  11: 8/8
+//
+// For mode = 1
+//  00: 0/8
+//  01: 4/8
+//  10: 4/8 with alpha punchthrough
+//  11: 8/8
+//
+// For colorIsOpaque=0
+//  3 bits A
+//  4 bits R
+//  4 bits G
+//  3/4 bits B
+//
+// For colorIsOpaque=1
+//  5 bits R
+//  5 bits G
+//  4/5 bits B
+//
+//============================================================================
+
+#pragma once
+#include "ColorRgba.h"
+
+//============================================================================
+
+namespace Javelin
+{
+//============================================================================
+
+	struct PvrTcPacket
+	{
+		unsigned int    modulationData;
+		unsigned        usePunchthroughAlpha : 1;
+		unsigned        colorA          	 : 14;
+		unsigned        colorAIsOpaque  	 : 1;
+		unsigned        colorB        		 : 15;
+		unsigned        colorBIsOpaque  	 : 1;
+		
+		ColorRgb<int> GetColorRgbA() const;
+		ColorRgb<int> GetColorRgbB() const;
+		ColorRgba<int> GetColorRgbaA() const;
+		ColorRgba<int> GetColorRgbaB() const;
+		
+		void SetColorA(const ColorRgb<unsigned char>& c);
+		void SetColorB(const ColorRgb<unsigned char>& c);
+
+		void SetColorA(const ColorRgba<unsigned char>& c);
+		void SetColorB(const ColorRgba<unsigned char>& c);
+		
+		static const unsigned char BILINEAR_FACTORS[16][4];
+		static const unsigned char WEIGHTS[8][4];
+	};
+
+//============================================================================
+} // namespace Javelin
+//============================================================================
-- 
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