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Fix MT4696 - 8-bit sample reading was broken

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This commit is contained in:
Aaron Giles 2012-02-21 06:36:17 +00:00
parent fe763516ae
commit 8cf5580b11
1 changed files with 3 additions and 5 deletions
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8
src/emu/sound/samples.c
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@ -455,7 +455,6 @@ bool samples_device::read_sample(emu_file &file, loaded_sample &sample)
bool samples_device::read_wav_sample(emu_file &file, loaded_sample &sample)
{
printf("Reading %s as WAV\n", file.filename());
// we already read the opening 'WAVE' header
UINT32 offset = 4;
@ -544,23 +543,24 @@ printf("Reading %s as WAV\n", file.filename());
return false;
// fill in the sample data
sample.length = length / 2;
sample.frequency = rate;
// read the data in
if (bits == 8)
{
sample.length = length;
sample.data.resize(length);
file.read(sample.data, length);
// convert 8-bit data to signed samples
UINT8 *tempptr = reinterpret_cast<UINT8 *>(&sample.data[0]);
for (UINT32 sindex = length - 1; sindex >= 0; sindex--)
for (INT32 sindex = length - 1; sindex >= 0; sindex--)
sample.data[sindex] = INT8(tempptr[sindex] ^ 0x80) * 256;
}
else
{
// 16-bit data is fine as-is
sample.length = length / 2;
sample.data.resize(length / 2);
file.read(sample.data, length);
@ -579,7 +579,6 @@ printf("Reading %s as WAV\n", file.filename());
bool samples_device::read_flac_sample(emu_file &file, loaded_sample &sample)
{
printf("Reading %s as FLAC\n", file.filename());
// seek back to the start of the file
file.seek(0, SEEK_SET);
@ -628,7 +627,6 @@ void samples_device::load_samples()
int index = 0;
for (const char *samplename = iter.first(); samplename != NULL; index++, samplename = iter.next())
{
printf("Sample %d = %s\n", index, samplename);
// attempt to open as FLAC first
emu_file file(machine().options().sample_path(), OPEN_FLAG_READ);
file_error filerr = file.open(basename, PATH_SEPARATOR, samplename, ".flac");