grab from latest android

git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 106 insertions, 0 deletions

diff --git a/src/ports/SkOSFile_stdio.cpp b/src/ports/SkOSFile_stdio.cpp
new file mode 100644
index 0000000000..7438f7b76d
--- /dev/null
+++ b/src/ports/SkOSFile_stdio.cpp
@@ -0,0 +1,106 @@
+/* libs/graphics/ports/SkOSFile_stdio.cpp
+**
+** Copyright 2006, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#include "SkOSFile.h"
+
+#ifndef SK_BUILD_FOR_BREW
+
+#include <stdio.h>
+#include <errno.h>
+
+SkFILE* sk_fopen(const char path[], SkFILE_Flags flags)
+{
+    char    perm[4];
+    char*   p = perm;
+
+    if (flags & kRead_SkFILE_Flag)
+        *p++ = 'r';
+    if (flags & kWrite_SkFILE_Flag)
+        *p++ = 'w';
+    *p++ = 'b';
+    *p = 0;
+
+    SkFILE* f = (SkFILE*)::fopen(path, perm);
+#if 0
+    if (NULL == f)
+        SkDebugf("sk_fopen failed for %s (%s), errno=%s\n", path, perm, strerror(errno));
+#endif
+    return f;
+}
+
+size_t sk_fgetsize(SkFILE* f)
+{
+    SkASSERT(f);
+
+    size_t  curr = ::ftell((FILE*)f);       // remember where we are
+    ::fseek((FILE*)f, 0, SEEK_END);         // go to the end
+    size_t size = ::ftell((FILE*)f);        // record the size
+    ::fseek((FILE*)f, (long)curr, SEEK_SET);        // go back to our prev loc
+    return size;
+}
+
+bool sk_frewind(SkFILE* f)
+{
+    SkASSERT(f);
+    ::rewind((FILE*)f);
+//  ::fseek((FILE*)f, 0, SEEK_SET);
+    return true;
+}
+
+size_t sk_fread(void* buffer, size_t byteCount, SkFILE* f)
+{
+    SkASSERT(f);
+    if (buffer == NULL)
+    {
+        size_t curr = ::ftell((FILE*)f);
+        if ((long)curr == -1) {
+            SkDEBUGF(("sk_fread: ftell(%p) returned -1 feof:%d ferror:%d\n", f, feof((FILE*)f), ferror((FILE*)f)));
+            return 0;
+        }
+    //  ::fseek((FILE*)f, (long)(curr + byteCount), SEEK_SET);
+        int err = ::fseek((FILE*)f, (long)byteCount, SEEK_CUR);
+        if (err != 0) {
+            SkDEBUGF(("sk_fread: fseek(%d) tell:%d failed with feof:%d ferror:%d returned:%d\n",
+                        byteCount, curr, feof((FILE*)f), ferror((FILE*)f), err));
+            return 0;
+        }
+        return byteCount;
+    }
+    else
+        return ::fread(buffer, 1, byteCount, (FILE*)f);
+}
+
+size_t sk_fwrite(const void* buffer, size_t byteCount, SkFILE* f)
+{
+    SkASSERT(f);
+    return ::fwrite(buffer, 1, byteCount, (FILE*)f);
+}
+
+void sk_fflush(SkFILE* f)
+{
+    SkASSERT(f);
+    ::fflush((FILE*)f);
+}
+
+void sk_fclose(SkFILE* f)
+{
+    SkASSERT(f);
+    ::fclose((FILE*)f);
+}
+
+#endif
+