Util: Add mAudioBufferFull convenience function

include/mgba-util/audio-buffer.h

@@ -22,6 +22,7 @@ void mAudioBufferDeinit(struct mAudioBuffer* buffer);
 
 size_t mAudioBufferAvailable(const struct mAudioBuffer* buffer);
 size_t mAudioBufferCapacity(const struct mAudioBuffer* buffer);
+bool mAudioBufferFull(const struct mAudioBuffer* buffer);
 
 void mAudioBufferClear(struct mAudioBuffer* buffer);
 int16_t mAudioBufferPeek(const struct mAudioBuffer* buffer, unsigned channel, size_t offset);

src/util/audio-buffer.c

@@ -24,6 +24,10 @@ size_t mAudioBufferCapacity(const struct mAudioBuffer* buffer) {
 	return mCircleBufferCapacity(&buffer->data) / (buffer->channels * sizeof(int16_t));
 }
 
+bool mAudioBufferFull(const struct mAudioBuffer* buffer) {
+	return mCircleBufferSize(&buffer->data) == mCircleBufferCapacity(&buffer->data);
+}
+
 void mAudioBufferClear(struct mAudioBuffer* buffer) {
 	mCircleBufferClear(&buffer->data);
 }

src/util/audio-resampler.c

@@ -83,7 +83,7 @@ size_t mAudioResamplerProcess(struct mAudioResampler* resampler) {
 		if (timestamp + resampler->highWaterMark >= mAudioBufferAvailable(resampler->source)) {
 			break;
 		}
-		if (mAudioBufferAvailable(resampler->destination) == mAudioBufferCapacity(resampler->destination)) {
+		if (mAudioBufferFull(resampler->destination)) {
 			break;
 		}