VNC: Add VNC server to M5

1 files changed, 82 insertions, 0 deletions

diff --git a/src/base/bitmap.cc b/src/base/bitmap.cc
new file mode 100644
index 000000000..0d2a9302b
--- /dev/null
+++ b/src/base/bitmap.cc
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+/*
+ * Copyright (c) 2010 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder.  You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: William Wang
+ *          Ali Saidi
+ */
+
+#include <cassert>
+
+#include "base/bitmap.hh"
+#include "base/misc.hh"
+
+// bitmap class ctor
+Bitmap::Bitmap(VideoConvert::Mode _mode, uint16_t w, uint16_t h, uint8_t *d)
+    : mode(_mode), height(h), width(w), data(d),
+    vc(mode, VideoConvert::rgb8888, width, height)
+{
+}
+
+void
+Bitmap::write(std::ostream *bmp)
+{
+    assert(data);
+
+    // For further information see: http://en.wikipedia.org/wiki/BMP_file_format
+    Magic  magic = {{'B','M'}};
+    Header header = {sizeof(VideoConvert::Rgb8888) * width * height , 0, 0, 54};
+    Info   info = {sizeof(Info), width, height, 1,
+                   sizeof(VideoConvert::Rgb8888) * 8, 0,
+                   sizeof(VideoConvert::Rgb8888) * width * height, 1, 1, 0, 0};
+
+    bmp->write(reinterpret_cast<char*>(&magic),  sizeof(magic));
+    bmp->write(reinterpret_cast<char*>(&header), sizeof(header));
+    bmp->write(reinterpret_cast<char*>(&info),   sizeof(info));
+
+    uint8_t *tmp = vc.convert(data);
+    uint32_t *tmp32 = (uint32_t*)tmp;
+
+    // BMP start store data left to right starting with the bottom row
+    // so we need to do some creative flipping
+    for (int i = height - 1; i >= 0; i--)
+        for (int j = 0; j < width; j++)
+            bmp->write((char*)&tmp32[i * width + j], sizeof(uint32_t));
+
+    bmp->flush();
+
+    delete [] tmp;
+}
+