SnapScan scanner data sources for version 1.0 (interface)

backend/snapscan-sources.h

@@ -0,0 +1,39 @@
+/* $Id$
+   SnapScan backend scan data sources */
+
+#ifndef SNAPSCAN_SOURCES_H
+#define SNAPSCAN_SOURCES_H
+
+typedef struct source Source;
+
+typedef SANE_Int (*SourceRemaining) (Source *ps);
+typedef SANE_Int (*SourceBytesPerLine) (Source *ps);
+typedef SANE_Int (*SourcePixelsPerLine) (Source *ps);
+typedef SANE_Status (*SourceGet) (Source *ps, SANE_Byte *pbuf, SANE_Int *plen);
+typedef SANE_Status (*SourceDone) (Source *ps);
+
+#define SOURCE_GUTS \
+  SnapScan_Scanner *pss;\
+  SourceRemaining remaining;\
+  SourceBytesPerLine bytesPerLine;\
+  SourcePixelsPerLine pixelsPerLine;\
+  SourceGet get;\
+  SourceDone done
+
+struct source {
+  SOURCE_GUTS;
+};
+
+static
+SANE_Status Source_init (Source *pself, SnapScan_Scanner *pss,
+			 SourceRemaining remaining,
+			 SourceBytesPerLine bytesPerLine,
+			 SourcePixelsPerLine pixelsPerLine,
+			 SourceGet get,
+			 SourceDone done);
+
+
+/* base sources */
+
+
+#endif