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godot/tools/editor/plugins/sample_editor_plugin.cpp

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/*************************************************************************/
/* sample_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "sample_editor_plugin.h"
#include "io/resource_loader.h"
#include "globals.h"
#include "tools/editor/editor_settings.h"
void SampleEditor::_input_event(InputEvent p_event) {
}
void SampleEditor::_notification(int p_what) {
if (p_what==NOTIFICATION_FIXED_PROCESS) {
}
if (p_what==NOTIFICATION_ENTER_SCENE) {
play->set_icon( get_icon("Play","EditorIcons") );
stop->set_icon( get_icon("Stop","EditorIcons") );
}
if (p_what==NOTIFICATION_READY) {
//get_scene()->connect("node_removed",this,"_node_removed");
}
if (p_what==NOTIFICATION_DRAW) {
}
}
void SampleEditor::_play_pressed() {
player->play("default",true);
stop->set_pressed(false);
play->set_pressed(true);
}
void SampleEditor::_stop_pressed() {
player->stop_all();
play->set_pressed(false);
}
void SampleEditor::generate_preview_texture(const Ref<Sample>& p_sample,Ref<ImageTexture> &p_texture) {
DVector<uint8_t> data = p_sample->get_data();
DVector<uint8_t> img;
int w = p_texture->get_width();
int h = p_texture->get_height();
img.resize(w*h*3);
DVector<uint8_t>::Write imgdata = img.write();
uint8_t * imgw = imgdata.ptr();
DVector<uint8_t>::Read sampledata = data.read();
const uint8_t *sdata=sampledata.ptr();
bool stereo = p_sample->is_stereo();
bool _16=p_sample->get_format()==Sample::FORMAT_PCM16;
int len = p_sample->get_length();
if (len<1)
return;
for(int i=0;i<w;i++) {
// i trust gcc will optimize this loop
float max[2]={-1e10,-1e10};
float min[2]={1e10,1e10};
int c=stereo?2:1;
int from = i*len/w;
int to = (i+1)*len/w;
if (to>=len)
to=len-1;
if (_16) {
const int16_t*src =(const int16_t*)sdata;
for(int j=0;j<c;j++) {
for(int k=from;k<=to;k++) {
float v = src[k*c+j]/32768.0;
if (v>max[j])
max[j]=v;
if (v<min[j])
min[j]=v;
}
}
} else {
const int8_t*src =(const int8_t*)sdata;
for(int j=0;j<c;j++) {
for(int k=from;k<=to;k++) {
float v = src[k*c+j]/128.0;
if (v>max[j])
max[j]=v;
if (v<min[j])
min[j]=v;
}
}
}
if (!stereo) {
for(int j=0;j<h;j++) {
float v = (j/(float)h) * 2.0 - 1.0;
uint8_t* imgofs = &imgw[(j*w+i)*3];
if (v>min[0] && v<max[0]) {
imgofs[0]=255;
imgofs[1]=150;
imgofs[2]=80;
} else {
imgofs[0]=0;
imgofs[1]=0;
imgofs[2]=0;
}
}
} else {
for(int j=0;j<h;j++) {
int half,ofs;
float v;
if (j<(h/2)) {
half=0;
ofs=0;
v = (j/(float)(h/2)) * 2.0 - 1.0;
} else {
half=1;
ofs=h/2;
v = ((j-(h/2))/(float)(h/2)) * 2.0 - 1.0;
}
uint8_t* imgofs = &imgw[(j*w+i)*3];
if (v>min[half] && v<max[half]) {
imgofs[0]=255;
imgofs[1]=150;
imgofs[2]=80;
} else {
imgofs[0]=0;
imgofs[1]=0;
imgofs[2]=0;
}
}
}
}
imgdata = DVector<uint8_t>::Write();
p_texture->set_data(Image(w,h,0,Image::FORMAT_RGB,img));
}
void SampleEditor::_update_sample() {
player->stop_all();
if (sample->get_format()==Sample::FORMAT_IMA_ADPCM)
return; //bye or unsupported
generate_preview_texture(sample,peakdisplay);
info_label->set_text("Length: "+itos(sample->get_length())+" frames ("+String::num(sample->get_length()/(float)sample->get_mix_rate(),2)+" s), "+(sample->get_format()==Sample::FORMAT_PCM16?"16 Bits, ":"8 bits, ")+(sample->is_stereo()?"Stereo.":"Mono."));
library->add_sample("default",sample);
}
void SampleEditor::edit(Ref<Sample> p_sample) {
sample=p_sample;
if (!sample.is_null())
_update_sample();
else {
hide();
set_fixed_process(false);
}
}
void SampleEditor::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_input_event"),&SampleEditor::_input_event);
ObjectTypeDB::bind_method(_MD("_play_pressed"),&SampleEditor::_play_pressed);
ObjectTypeDB::bind_method(_MD("_stop_pressed"),&SampleEditor::_stop_pressed);
}
SampleEditor::SampleEditor() {
player = memnew(SamplePlayer);
add_child(player);
add_style_override("panel", get_stylebox("panel","Panel"));
library = Ref<SampleLibrary>(memnew(SampleLibrary));
player->set_sample_library(library);
sample_texframe = memnew( TextureFrame );
add_child(sample_texframe);
sample_texframe->set_anchor_and_margin(MARGIN_LEFT,ANCHOR_BEGIN,5);
sample_texframe->set_anchor_and_margin(MARGIN_RIGHT,ANCHOR_END,5);
sample_texframe->set_anchor_and_margin(MARGIN_TOP,ANCHOR_BEGIN,30);
sample_texframe->set_anchor_and_margin(MARGIN_BOTTOM,ANCHOR_END,5);
info_label = memnew( Label );
sample_texframe->add_child(info_label);
info_label->set_area_as_parent_rect();
info_label->set_anchor_and_margin(MARGIN_TOP,ANCHOR_END,15);
info_label->set_margin(MARGIN_BOTTOM,4);
info_label->set_margin(MARGIN_RIGHT,4);
info_label->set_align(Label::ALIGN_RIGHT);
play = memnew( Button );
play->set_pos(Point2( 5, 5 ));
play->set_size( Size2(1,1 ) );
play->set_toggle_mode(true);
add_child(play);
stop = memnew( Button );
stop->set_pos(Point2( 35, 5 ));
stop->set_size( Size2(1,1 ) );
stop->set_toggle_mode(true);
add_child(stop);
peakdisplay=Ref<ImageTexture>( memnew( ImageTexture) );
peakdisplay->create( EDITOR_DEF("audio/sample_editor_preview_width",512),EDITOR_DEF("audio/sample_editor_preview_height",128),Image::FORMAT_RGB);
sample_texframe->set_expand(true);
sample_texframe->set_texture(peakdisplay);
play->connect("pressed", this,"_play_pressed");
stop->connect("pressed", this,"_stop_pressed");
}
void SampleEditorPlugin::edit(Object *p_object) {
Sample * s = p_object->cast_to<Sample>();
if (!s)
return;
sample_editor->edit(Ref<Sample>(s));
}
bool SampleEditorPlugin::handles(Object *p_object) const {
return p_object->is_type("Sample");
}
void SampleEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
sample_editor->show();
// sample_editor->set_process(true);
} else {
sample_editor->hide();
// sample_editor->set_process(false);
}
}
SampleEditorPlugin::SampleEditorPlugin(EditorNode *p_node) {
editor=p_node;
sample_editor = memnew( SampleEditor );
editor->get_viewport()->add_child(sample_editor);
sample_editor->set_area_as_parent_rect();
sample_editor->set_anchor( MARGIN_TOP, Control::ANCHOR_END);
sample_editor->set_margin( MARGIN_TOP, 120 );
sample_editor->hide();
}
SampleEditorPlugin::~SampleEditorPlugin()
{
}
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