Include JPEG compression / decompression library into emulator build

We are going to need JPEG compression for transferring emulator's framebuffers to
the multi-touch supporting application running on an android device. The source
for JPEG compressor has been copied over from external/jpeg

To that I've added distrib/jpeg-6b/sources.make containing build instruction for
JPEG compressor. That file gets included into Makefile.common to compile JPEG
compressor sources along with the emulator sources.

Change-Id: I7bfccb7a10f873f90edabab5d3b1b2ca4dd57449

1 files changed, 38 insertions, 0 deletions

diff --git a/distrib/jpeg-6b/rdgif.c b/distrib/jpeg-6b/rdgif.c
new file mode 100644
index 0000000..b27c167
--- /dev/null
+++ b/distrib/jpeg-6b/rdgif.c
@@ -0,0 +1,38 @@
+/*
+ * rdgif.c
+ *
+ * Copyright (C) 1991-1997, Thomas G. Lane.
+ * This file is part of the Independent JPEG Group's software.
+ * For conditions of distribution and use, see the accompanying README file.
+ *
+ * This file contains routines to read input images in GIF format.
+ *
+ *****************************************************************************
+ * NOTE: to avoid entanglements with Unisys' patent on LZW compression,      *
+ * the ability to read GIF files has been removed from the IJG distribution. *
+ * Sorry about that.                                                         *
+ *****************************************************************************
+ *
+ * We are required to state that
+ *    "The Graphics Interchange Format(c) is the Copyright property of
+ *    CompuServe Incorporated. GIF(sm) is a Service Mark property of
+ *    CompuServe Incorporated."
+ */
+
+#include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
+
+#ifdef GIF_SUPPORTED
+
+/*
+ * The module selection routine for GIF format input.
+ */
+
+GLOBAL(cjpeg_source_ptr)
+jinit_read_gif (j_compress_ptr cinfo)
+{
+  fprintf(stderr, "GIF input is unsupported for legal reasons.  Sorry.\n");
+  exit(EXIT_FAILURE);
+  return NULL;			/* keep compiler happy */
+}
+
+#endif /* GIF_SUPPORTED */