Entirely new (and much improved) animation editor.

2025-11-04 12:00:25 +00:00 · 2018-06-07 12:46:14 -03:00
parent 3cd09cd943
commit b659fd6d74
60 changed files with 11745 additions and 5177 deletions
--- a/editor/audio_stream_preview.cpp
+++ b/editor/audio_stream_preview.cpp
@@ -0,0 +1,211 @@
+#include "audio_stream_preview.h"
+
+/////////////////////
+
+float AudioStreamPreview::get_length() const {
+	return length;
+}
+float AudioStreamPreview::get_max(float p_time, float p_time_next) const {
+
+	if (length == 0)
+		return 0;
+
+	int max = preview.size() / 2;
+	int time_from = p_time / length * max;
+	int time_to = p_time_next / length * max;
+	time_from = CLAMP(time_from, 0, max - 1);
+	time_to = CLAMP(time_to, 0, max - 1);
+
+	if (time_to <= time_from) {
+		time_to = time_from + 1;
+	}
+
+	uint8_t vmax;
+
+	for (int i = time_from; i < time_to; i++) {
+
+		uint8_t v = preview[i * 2 + 1];
+		if (i == 0 || v > vmax) {
+			vmax = v;
+		}
+	}
+
+	return (vmax / 255.0) * 2.0 - 1.0;
+}
+float AudioStreamPreview::get_min(float p_time, float p_time_next) const {
+
+	if (length == 0)
+		return 0;
+
+	int max = preview.size() / 2;
+	int time_from = p_time / length * max;
+	int time_to = p_time_next / length * max;
+	time_from = CLAMP(time_from, 0, max - 1);
+	time_to = CLAMP(time_to, 0, max - 1);
+
+	if (time_to <= time_from) {
+		time_to = time_from + 1;
+	}
+
+	uint8_t vmin;
+
+	for (int i = time_from; i < time_to; i++) {
+
+		uint8_t v = preview[i * 2];
+		if (i == 0 || v < vmin) {
+			vmin = v;
+		}
+	}
+
+	return (vmin / 255.0) * 2.0 - 1.0;
+}
+
+AudioStreamPreview::AudioStreamPreview() {
+	length = 0;
+}
+
+////
+
+void AudioStreamPreviewGenerator::_update_emit(ObjectID p_id) {
+	emit_signal("preview_updated", p_id);
+}
+
+void AudioStreamPreviewGenerator::_preview_thread(void *p_preview) {
+
+	Preview *preview = (Preview *)p_preview;
+
+	float muxbuff_chunk_s = 0.25;
+
+	int mixbuff_chunk_frames = AudioServer::get_singleton()->get_mix_rate() * muxbuff_chunk_s;
+
+	Vector<AudioFrame> mix_chunk;
+	mix_chunk.resize(mixbuff_chunk_frames);
+
+	int frames_total = AudioServer::get_singleton()->get_mix_rate() * preview->preview->length;
+	int frames_todo = frames_total;
+
+	preview->playback->start();
+
+	while (frames_todo) {
+
+		int ofs_write = uint64_t(frames_total - frames_todo) * uint64_t(preview->preview->preview.size() / 2) / uint64_t(frames_total);
+		int to_read = MIN(frames_todo, mixbuff_chunk_frames);
+		int to_write = uint64_t(to_read) * uint64_t(preview->preview->preview.size() / 2) / uint64_t(frames_total);
+		to_write = MIN(to_write, (preview->preview->preview.size() / 2) - ofs_write);
+
+		preview->playback->mix(mix_chunk.ptrw(), 1.0, to_read);
+
+		for (int i = 0; i < to_write; i++) {
+			float max = -1000;
+			float min = 1000;
+			int from = uint64_t(i) * to_read / to_write;
+			int to = uint64_t(i + 1) * to_read / to_write;
+			to = MIN(to, to_read);
+			from = MIN(from, to_read - 1);
+			if (to == from) {
+				to = from + 1;
+			}
+
+			for (int j = from; j < to; j++) {
+
+				max = MAX(max, mix_chunk[j].l);
+				max = MAX(max, mix_chunk[j].r);
+
+				min = MIN(min, mix_chunk[j].l);
+				min = MIN(min, mix_chunk[j].r);
+			}
+
+			uint8_t pfrom = CLAMP((min * 0.5 + 0.5) * 255, 0, 255);
+			uint8_t pto = CLAMP((max * 0.5 + 0.5) * 255, 0, 255);
+
+			preview->preview->preview[(ofs_write + i) * 2 + 0] = pfrom;
+			preview->preview->preview[(ofs_write + i) * 2 + 1] = pto;
+		}
+
+		frames_todo -= to_read;
+		singleton->call_deferred("_update_emit", preview->id);
+	}
+
+	preview->playback->stop();
+
+	preview->generating = false;
+}
+
+Ref<AudioStreamPreview> AudioStreamPreviewGenerator::generate_preview(const Ref<AudioStream> &p_stream) {
+	ERR_FAIL_COND_V(p_stream.is_null(), Ref<AudioStreamPreview>());
+
+	if (previews.has(p_stream->get_instance_id())) {
+		return previews[p_stream->get_instance_id()].preview;
+	}
+
+	//no preview exists
+
+	previews[p_stream->get_instance_id()] = Preview();
+
+	Preview *preview = &previews[p_stream->get_instance_id()];
+	preview->base_stream = p_stream;
+	preview->playback = preview->base_stream->instance_playback();
+	preview->generating = true;
+	preview->id = p_stream->get_instance_id();
+
+	float len_s = preview->base_stream->get_length();
+	if (len_s == 0) {
+		len_s = 60 * 5; //five minutes
+	}
+
+	int frames = AudioServer::get_singleton()->get_mix_rate() * len_s;
+
+	Vector<uint8_t> maxmin;
+	int pw = frames / 20;
+	maxmin.resize(pw * 2);
+	{
+		uint8_t *ptr = maxmin.ptrw();
+		for (int i = 0; i < pw * 2; i++) {
+			ptr[i] = 127;
+		}
+	}
+
+	preview->preview.instance();
+	preview->preview->preview = maxmin;
+	preview->preview->length = len_s;
+
+	preview->thread = Thread::create(_preview_thread, preview);
+
+	return preview->preview;
+}
+
+void AudioStreamPreviewGenerator::_bind_methods() {
+	ClassDB::bind_method("_update_emit", &AudioStreamPreviewGenerator::_update_emit);
+	ClassDB::bind_method(D_METHOD("generate_preview", "stream"), &AudioStreamPreviewGenerator::generate_preview);
+
+	ADD_SIGNAL(MethodInfo("preview_updated", PropertyInfo(Variant::INT, "obj_id")));
+}
+
+AudioStreamPreviewGenerator *AudioStreamPreviewGenerator::singleton = NULL;
+
+void AudioStreamPreviewGenerator::_notification(int p_what) {
+	if (p_what == NOTIFICATION_PROCESS) {
+		List<ObjectID> to_erase;
+		for (Map<ObjectID, Preview>::Element *E = previews.front(); E; E = E->next()) {
+			if (!E->get().generating) {
+				if (E->get().thread) {
+					Thread::wait_to_finish(E->get().thread);
+					E->get().thread = NULL;
+				}
+				if (!ObjectDB::get_instance(E->key())) { //no longer in use, get rid of preview
+					to_erase.push_back(E->key());
+				}
+			}
+		}
+
+		while (to_erase.front()) {
+			previews.erase(to_erase.front()->get());
+			to_erase.pop_front();
+		}
+	}
+}
+
+AudioStreamPreviewGenerator::AudioStreamPreviewGenerator() {
+	singleton = this;
+	set_process(true);
+}