add spuencoder implementation

move ClearOsd() from cDxr3Interface to cSpuEncoder class. Also make
method simpler to understand. Yet this method is not used.

1 files changed, 41 insertions, 0 deletions

diff --git a/spuencoder.c b/spuencoder.c
new file mode 100644
index 0000000..b2a9921
--- /dev/null
+++ b/spuencoder.c
@@ -0,0 +1,41 @@
+#include "spuencoder.h"
+#include "dxr3interface.h"
+
+static const uint8_t CMD_FORCE_DISPLAYING   = 0x00;
+static const uint8_t CMD_STOP_DISPLAYING    = 0x02;
+static const uint8_t CMD_SET_COLOR          = 0x03;
+static const uint8_t CMD_SET_ALPHA          = 0x04;
+static const uint8_t CMD_SET_DISPLAYAREA    = 0x05;
+static const uint8_t CMD_SET_PIXEL_ADDRESES = 0x06;
+static const uint8_t CMD_CHG_COLCON         = 0x07;
+
+void cSpuEncoder::clearOsd()
+{
+    uint8_t d[10];
+
+    // packet size
+    d[0] = 0;
+    d[1] = 10;
+
+    // pointer to the SP_DCSQT
+    d[2] = 0;
+    d[3] = 4;
+
+    // display duration...
+    d[4] = 0x00;
+    d[5] = 0x00;    // duration before turn on command occurs (will not be used)
+
+    // pointer to next command block
+    d[6] = 0;       // since this is the last command block, this
+    d[7] = 4;       // points back to itself
+
+    // stop displaying
+    d[8] = CMD_STOP_DISPLAYING;
+
+    // end sequence
+    d[9] = 0xFF;
+
+    // TODO: osd button handling
+
+    cDxr3Interface::instance()->WriteSpu((uchar *)&d, 10);
+}