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Code Issues Releases Wiki Activity

closed #13 pitch & gain support, fix volume value

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This commit is contained in:
XProger
2017-01-19 03:50:48 +03:00
parent c187fe5fe0
commit 4d655dc972
2 changed files with 46 additions and 31 deletions
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11
src/controller.h
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@@ -193,8 +193,15 @@ struct Controller {
TR::SoundInfo &b = level->soundsInfo[a];
if (b.chance == 0 || (rand() & 0x7fff) <= b.chance) {
int index = b.offset + rand() % b.flags.count;
Sound::play(level->getSampleStream(index), pos, (float)b.volume / 0xFFFF, 0.0f, flags | ((b.flags.replay == 1) ? Sound::REPLAY : 0), entity * 1000 + index);
int index = b.offset + rand() % b.flags.count;
float volume = (float)b.volume / 0x7FFF;
float pitch = b.flags.pitch ? (0.9f + randf() * 0.2f) : 1.0f;
if (b.flags.mode == 1) flags |= Sound::UNIQUE;
if (b.flags.mode == 2) flags |= Sound::REPLAY;
if (b.flags.mode == 3) flags |= Sound::SYNC;
if (b.flags.gain) volume = max(0.0f, volume - randf() * 0.25f);
if (b.flags.fixed) flags &= ~Sound::PAN;
Sound::play(level->getSampleStream(index), pos, volume, pitch, flags, entity * 1000 + index);
}
}

66
src/sound.h
View File

@@ -144,10 +144,7 @@ namespace Sound {
}
};
#endif
double samples[28];
#ifdef DECODE_VAG
struct VAG : Decoder {
uint8 pred, shift, flags;
@@ -311,10 +308,9 @@ double samples[28];
enum Flags {
LOOP = 1,
PAN = 2,
REPLAY = 4,
REVERB_NEAR = 8,
REVERB_MIDDLE = 16,
REVERB_FAR = 32,
UNIQUE = 4,
REPLAY = 8,
SYNC = 16,
};
struct Sample {
@@ -350,7 +346,7 @@ double samples[28];
stream->read(waveFmt);
stream->seek(size - sizeof(waveFmt));
} else if (type == FOURCC("data")) {
if (waveFmt.format == 1) decoder = new PCM(stream, waveFmt.channels, waveFmt.samplesPerSec, size, waveFmt.sampleBits);
if (waveFmt.format == 1) decoder = new PCM(stream, waveFmt.channels, waveFmt.samplesPerSec, size, waveFmt.sampleBits);
#ifdef DECODE_ADPCM
if (waveFmt.format == 2) decoder = new ADPCM(stream, waveFmt.channels, size, waveFmt.block);
#endif
@@ -450,16 +446,28 @@ double samples[28];
FrameHI *result = new FrameHI[count];
memset(result, 0, sizeof(FrameHI) * count);
Frame *buffer = new Frame[count];
int bufSize = count + count / 2;
Frame *buffer = new Frame[bufSize]; // + 50% for pitch
for (int i = 0; i < channelsCount; i++) {
memset(buffer, 0, sizeof(Frame) * count);
channels[i]->render(buffer, count);
memset(buffer, 0, sizeof(Frame) * bufSize);
channels[i]->render(buffer, int(count * channels[i]->pitch));
for (int j = 0; j < count; j++) {
result[j].L += buffer[j].L;
result[j].R += buffer[j].R;
if (channels[i]->pitch == 1.0f) { // no pitch
for (int j = 0; j < count; j++) {
result[j].L += buffer[j].L;
result[j].R += buffer[j].R;
}
} else { // has pitch (interpolate values for smooth wave)
float t = 0.0f;
for (int j = 0; j < count; j++, t += channels[i]->pitch) {
int idxA = int(t);
int idxB = (j == (count - 1)) ? idxA : (idxA + 1);
float k = t - idxA;
result[j].L += lerp(buffer[idxA].L, buffer[idxB].L, k);
result[j].R += lerp(buffer[idxA].R, buffer[idxB].R, k);
}
}
}
@@ -502,23 +510,23 @@ double samples[28];
Sample* play(Stream *stream, const vec3 &pos, float volume = 1.0f, float pitch = 0.0f, int flags = 0, int id = - 1) {
if (!stream) return NULL;
if (volume > 0.001f) {
if (flags & (REPLAY | SYNC | UNIQUE))
for (int i = 0; i < channelsCount; i++)
if (channels[i]->id == id) {
channels[i]->pos = pos;
channels[i]->pitch = pitch;
if (flags & (REPLAY | UNIQUE))
channels[i]->decoder->replay();
delete stream;
return channels[i];
}
if (flags & REPLAY)
for (int i = 0; i < channelsCount; i++)
if (channels[i]->id == id) {
channels[i]->pos = pos;
// channels[i]->pitch = pitch; // TODO
// channels[i]->gain = gain; // TODO
channels[i]->decoder->replay();
delete stream;
return channels[i];
}
if (channelsCount < SND_CHANNELS_MAX)
return channels[channelsCount++] = new Sample(stream, pos, volume, pitch, flags, id);
if (channelsCount < SND_CHANNELS_MAX)
return channels[channelsCount++] = new Sample(stream, pos, volume, pitch, flags, id);
LOG("! no free channels\n");
LOG("! no free channels\n");
}
delete stream;
return NULL;
}