Update Files

Kha/Kinc/Backends/Audio3/A3onA2/Sources/kinc/backend/Audio.cpp

@@ -0,0 +1,65 @@
+#include <Kore/Audio2/Audio.h>
+#include <Kore/Audio3/Audio.h>
+
+using namespace Kore;
+
+namespace {
+	const int channelCount = 64;
+	Audio3::Channel channels[channelCount];
+
+	void callback(uint32_t samples) {
+		for (int i = 0; i < channelCount; ++i) {
+			channels[i].callback(samples);
+		}
+		for (int i = 0; i < samples; ++i) {
+			float value = 0;
+			for (int i = 0; i < channelCount; ++i) {
+				value += *(float *)&channels[i].buffer.data[Audio2::buffer.readLocation];
+				channels[i].buffer.readLocation += 4;
+				if (channels[i].buffer.readLocation >= channels[i].buffer.dataSize) {
+					channels[i].buffer.readLocation = 0;
+				}
+			}
+
+			*(float *)&Audio2::buffer.channels[0][Audio2::buffer.writeLocation] = value;
+			*(float *)&Audio2::buffer.channels[1][Audio2::buffer.writeLocation] = value;
+			Audio2::buffer.writeLocation += 1;
+			if (Audio2::buffer.writeLocation >= Audio2::buffer.dataSize) {
+				Audio2::buffer.writeLocation = 0;
+			}
+		}
+	}
+}
+
+void Audio3::init() {
+	for (int i = 0; i < channelCount; ++i) {
+		channels[i].active = false;
+		channels[i].buffer.readLocation = 0;
+		channels[i].buffer.writeLocation = 0;
+		channels[i].buffer.dataSize = 128 * 1024;
+		channels[i].buffer.data = new u8[channels[i].buffer.dataSize];
+	}
+	Audio2::init();
+	Audio2::audioCallback = callback;
+}
+
+void Audio3::update() {
+	Audio2::update();
+}
+
+void Audio3::shutdown() {
+	Audio2::shutdown();
+}
+
+Audio3::Channel *Audio3::createChannel(vec3 origin, AudioCallback callback) {
+	for (int i = 0; i < channelCount; ++i) {
+		if (!channels[i].active) {
+			return &channels[i];
+		}
+	}
+	return nullptr;
+}
+
+void Audio3::destroyChannel(Channel *channel) {
+	channel->active = false;
+}