add basic implementation of a spu region

3 files changed, 116 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 139c470..7229adf 100644
--- a/Makefile
+++ b/Makefile
@@ -75,7 +75,7 @@ OBJS = $(PLUGIN).o dxr3multichannelaudio.o dxr3colormanager.o \
 	dxr3pesframe.o dxr3demuxdevice.o dxr3configdata.o \
 	dxr3interface_spu_encoder.o dxr3interface.o dxr3device.o \
 	dxr3output.o dxr3output-video.o dxr3output-audio.o dxr3osd.o dxr3spudecoder.o \
-	dxr3audio-oss.o dxr3audio-alsa.o spuencoder.o
+        dxr3audio-oss.o dxr3audio-alsa.o spuencoder.o spuregion.o
 
 ### Default target:
 
diff --git a/spuregion.c b/spuregion.c
new file mode 100644
index 0000000..1a183eb
--- /dev/null
+++ b/spuregion.c
@@ -0,0 +1,58 @@
+/*
+ *           _                 _             _                 _          _____
+ * __   ____| |_ __      _ __ | |_   _  __ _(_)_ __         __| |_  ___ _|___ /
+ * \ \ / / _` | '__|____| '_ \| | | | |/ _` | | '_ \ _____ / _` \ \/ / '__||_ \
+ *  \ V / (_| | | |_____| |_) | | |_| | (_| | | | | |_____| (_| |>  <| |  ___) |
+ *   \_/ \__,_|_|       | .__/|_|\__,_|\__, |_|_| |_|      \__,_/_/\_\_| |____/
+ *                      |_|            |___/
+ *
+ * Copyright (C) 2009 Christian Gmeiner
+ *
+ * This file is part of vdr-plugin-dxr3.
+ *
+ * vdr-plugin-dxr3 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ *
+ * vdr-plugin-dxr3 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with dxr3-plugin.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "spuregion.h"
+
+cSpuRegion::cSpuRegion() : startLine(0), endLine(0), usedSections(0)
+{
+    memset(sections, 0, sizeof(sections));
+}
+
+bool cSpuRegion::addColIndex(tIndex idx)
+{
+    sSection sec = sections[usedSections];
+
+    if (sec.usedColors == MAX_COLORS) {
+        return false;
+    }
+
+    sec.cmap[idx] = sec.usedColors;
+    sec.colIndex[sec.usedColors++] = idx;
+    return true;
+}
+
+bool cSpuRegion::containsColIndex(tIndex idx)
+{
+    sSection sec = sections[usedSections];
+
+    for (uint8_t i = 0; i < sec.usedColors; i++) {
+        if (sec.colIndex[i] == idx) {
+            return true;
+        }
+    }
+
+    return false;
+}
diff --git a/spuregion.h b/spuregion.h
new file mode 100644
index 0000000..b94c65f
--- /dev/null
+++ b/spuregion.h
@@ -0,0 +1,57 @@
+/*
+ *           _                 _             _                 _          _____
+ * __   ____| |_ __      _ __ | |_   _  __ _(_)_ __         __| |_  ___ _|___ /
+ * \ \ / / _` | '__|____| '_ \| | | | |/ _` | | '_ \ _____ / _` \ \/ / '__||_ \
+ *  \ V / (_| | | |_____| |_) | | |_| | (_| | | | | |_____| (_| |>  <| |  ___) |
+ *   \_/ \__,_|_|       | .__/|_|\__,_|\__, |_|_| |_|      \__,_/_/\_\_| |____/
+ *                      |_|            |___/
+ *
+ * Copyright (C) 2009 Christian Gmeiner
+ *
+ * This file is part of vdr-plugin-dxr3.
+ *
+ * vdr-plugin-dxr3 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ *
+ * vdr-plugin-dxr3 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with dxr3-plugin.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef SPUREGION_H
+#define SPUREGION_H
+
+#include <vdr/osd.h>
+
+const static int MAX_COLORS = 4;
+
+struct sSection {
+    uint16_t startColumn;
+
+    uint8_t cmap[16];
+    tIndex colIndex[MAX_COLORS];
+    uint8_t usedColors;
+};
+
+class cSpuRegion {
+public:
+    cSpuRegion();
+
+    uint16_t startLine;
+    uint16_t endLine;
+    sSection sections[15];  // sections per region
+
+    bool addColIndex(tIndex idx);
+    bool containsColIndex(tIndex idx);
+
+private:
+    uint8_t usedSections;
+};
+
+#endif // SPUREGION_H