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Changed BBitmapStream to behave more like Be's implementation while still checking for bad input.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5211 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Matthew Wilber 2003-10-30 12:32:25 +00:00
parent b8fdbb4fff
commit c9cccf232a
1 changed files with 10 additions and 6 deletions
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16
src/kits/translation/BitmapStream.cpp
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@ -131,12 +131,14 @@ BBitmapStream::~BBitmapStream()
status_t
BBitmapStream::ReadAt(off_t pos, void *buffer, size_t size)
{
if (!buffer || pos < 0)
return B_BAD_VALUE;
if (!fBitmap || pos >= fSize)
if (!fBitmap)
return B_ERROR;
if (!size)
return B_NO_ERROR;
if (pos >= fSize)
return B_ERROR;
if (!buffer || pos < 0)
return B_BAD_VALUE;
size_t toRead;
void *source;
@ -182,10 +184,10 @@ BBitmapStream::ReadAt(off_t pos, void *buffer, size_t size)
status_t
BBitmapStream::WriteAt(off_t pos, const void *data, size_t size)
{
if (!data || pos < 0 || pos > fSize)
return B_BAD_VALUE;
if (!size)
return B_NO_ERROR;
if (!data || pos < 0 || pos > fSize)
return B_BAD_VALUE;
ssize_t written = 0;
while (size > 0) {
@ -384,8 +386,10 @@ BBitmapStream::DetachBitmap(BBitmap **outBitmap)
{
if (!outBitmap)
return B_BAD_VALUE;
if (fDetached || !fBitmap)
if (!fBitmap || fDetached) {
*outBitmap = NULL;
return B_ERROR;
}
fDetached = true;
*outBitmap = fBitmap;