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Codechange: Use std::vector for midifile's ByteBuffer. (#11019)

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PeterN 2023-06-16 17:04:46 +01:00 committed by GitHub
parent 1a3d1bca59
commit fc2510e2ba
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1 changed files with 11 additions and 21 deletions
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32
src/music/midifile.cpp
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@ -60,8 +60,7 @@ const byte *MidiGetStandardSysexMessage(MidiSysexMessage msg, size_t &length)
* RAII-compliant to make teardown in error situations easier.
*/
class ByteBuffer {
byte *buf;
size_t buflen;
std::vector<byte> buf;
size_t pos;
public:
/**
@ -73,31 +72,22 @@ public:
*/
ByteBuffer(FILE *file, size_t len)
{
this->buf = MallocT<byte>(len);
if (fread(this->buf, 1, len, file) == len) {
this->buflen = len;
this->buf.resize(len);
if (fread(this->buf.data(), 1, len, file) == len) {
this->pos = 0;
} else {
/* invalid state */
this->buflen = 0;
this->buf.clear();
}
}
/**
* Destructor, frees the buffer.
*/
~ByteBuffer()
{
free(this->buf);
}
/**
* Return whether the buffer was constructed successfully.
* @return true is the buffer contains data
*/
bool IsValid() const
{
return this->buflen > 0;
return this->buf.size() > 0;
}
/**
@ -106,7 +96,7 @@ public:
*/
bool IsEnd() const
{
return this->pos >= this->buflen;
return this->pos >= this->buf.size();
}
/**
@ -149,8 +139,8 @@ public:
bool ReadBuffer(byte *dest, size_t length)
{
if (this->IsEnd()) return false;
if (this->buflen - this->pos < length) return false;
memcpy(dest, this->buf + this->pos, length);
if (this->buf.size() - this->pos < length) return false;
std::copy(std::begin(this->buf) + this->pos, std::begin(this->buf) + this->pos + length, dest);
this->pos += length;
return true;
}
@ -164,8 +154,8 @@ public:
bool ReadDataBlock(MidiFile::DataBlock *dest, size_t length)
{
if (this->IsEnd()) return false;
if (this->buflen - this->pos < length) return false;
dest->data.insert(dest->data.end(), this->buf + this->pos, this->buf + this->pos + length);
if (this->buf.size() - this->pos < length) return false;
dest->data.insert(dest->data.end(), std::begin(this->buf) + this->pos, std::begin(this->buf) + this->pos + length);
this->pos += length;
return true;
}
@ -178,7 +168,7 @@ public:
bool Skip(size_t count)
{
if (this->IsEnd()) return false;
if (this->buflen - this->pos < count) return false;
if (this->buf.size() - this->pos < count) return false;
this->pos += count;
return true;
}