Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-10-24 19:18:57 +00:00
parent f7ff71bd46
commit b41eec3f65
3222 changed files with 658579 additions and 1 deletions
--- a/simulators/gem5/src/base/bitmap.cc
+++ b/simulators/gem5/src/base/bitmap.cc
@ -0,0 +1,106 @@
+/*
+ * 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
+ *          Chris Emmons
+ */
+
+#include <cassert>
+
+#include "base/bitmap.hh"
+#include "base/misc.hh"
+
+const size_t Bitmap::sizeofHeaderBuffer = sizeof(Magic) + sizeof(Header) +
+                                        sizeof(Info);
+
+// 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), headerBuffer(0)
+{
+}
+
+Bitmap::~Bitmap() {
+    if (headerBuffer)
+        delete [] headerBuffer;
+}
+
+void
+Bitmap::write(std::ostream *bmp) const
+{
+    assert(data);
+
+    // header is always the same for a bitmap object; compute the info once per
+    //   bitmap object
+    if (!headerBuffer) {
+        // For further information see:
+        //   http://en.wikipedia.org/wiki/BMP_file_format
+        Magic magic = {{'B','M'}};
+        Header header = {
+            static_cast<uint32_t>(sizeof(VideoConvert::Rgb8888)) *
+            width * height, 0, 0, 54};
+        Info info = {static_cast<uint32_t>(sizeof(Info)), width, height, 1,
+                     static_cast<uint32_t>(sizeof(VideoConvert::Rgb8888)) * 8,
+                     0, static_cast<uint32_t>(sizeof(VideoConvert::Rgb8888)) *
+                     width * height, 1, 1, 0, 0};
+
+        char *p = headerBuffer = new char[sizeofHeaderBuffer];
+        memcpy(p, &magic, sizeof(Magic));
+        p += sizeof(Magic);
+        memcpy(p, &header, sizeof(Header));
+        p += sizeof(Header);
+        memcpy(p, &info,   sizeof(Info));
+    }
+
+    // 1.  write the header
+    bmp->write(headerBuffer, sizeofHeaderBuffer);
+
+    // 2.  write the bitmap data
+    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;
+}
+