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godot/tools/editor/plugins/sample_editor_plugin.cpp
Rémi Verschelde 94c34ff890 i18n: Proofreading of all strings 
Done to ensure that no important identifiers are translatable,
to fix compound strings using the new vformat() function, and
some general English proofreading here and there.
2016-05-21 00:21:57 +02:00

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/*************************************************************************/
/* sample_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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_TREE) {
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;
if (p_sample->get_format()==Sample::FORMAT_IMA_ADPCM) {
struct IMA_ADPCM_State {
int16_t step_index;
int32_t predictor;
/* values at loop point */
int16_t loop_step_index;
int32_t loop_predictor;
int32_t last_nibble;
int32_t loop_pos;
int32_t window_ofs;
const uint8_t *ptr;
} ima_adpcm;
ima_adpcm.step_index=0;
ima_adpcm.predictor=0;
ima_adpcm.loop_step_index=0;
ima_adpcm.loop_predictor=0;
ima_adpcm.last_nibble=-1;
ima_adpcm.loop_pos=0x7FFFFFFF;
ima_adpcm.window_ofs=0;
ima_adpcm.ptr=NULL;
for(int i=0;i<w;i++) {
float max[2]={-1e10,-1e10};
float min[2]={1e10,1e10};
int from = i*len/w;
int to = (i+1)*len/w;
if (to>=len)
to=len-1;
for(int j=from;j<to;j++) {
while(j>ima_adpcm.last_nibble) {
static const int16_t _ima_adpcm_step_table[89] = {
7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
};
static const int8_t _ima_adpcm_index_table[16] = {
-1, -1, -1, -1, 2, 4, 6, 8,
-1, -1, -1, -1, 2, 4, 6, 8
};
int16_t nibble,signed_nibble,diff,step;
ima_adpcm.last_nibble++;
const uint8_t *src_ptr=sdata;
int ofs = ima_adpcm.last_nibble>>1;
if (stereo)
ofs*=2;
nibble = (ima_adpcm.last_nibble&1)?
(src_ptr[ofs]>>4):(src_ptr[ofs]&0xF);
step=_ima_adpcm_step_table[ima_adpcm.step_index];
ima_adpcm.step_index += _ima_adpcm_index_table[nibble];
if (ima_adpcm.step_index<0)
ima_adpcm.step_index=0;
if (ima_adpcm.step_index>88)
ima_adpcm.step_index=88;
/*
signed_nibble = (nibble&7) * ((nibble&8)?-1:1);
diff = (2 * signed_nibble + 1) * step / 4; */
diff = step >> 3 ;
if (nibble & 1)
diff += step >> 2 ;
if (nibble & 2)
diff += step >> 1 ;
if (nibble & 4)
diff += step ;
if (nibble & 8)
diff = -diff ;
ima_adpcm.predictor+=diff;
if (ima_adpcm.predictor<-0x8000)
ima_adpcm.predictor=-0x8000;
else if (ima_adpcm.predictor>0x7FFF)
ima_adpcm.predictor=0x7FFF;
/* store loop if there */
if (ima_adpcm.last_nibble==ima_adpcm.loop_pos) {
ima_adpcm.loop_step_index = ima_adpcm.step_index;
ima_adpcm.loop_predictor = ima_adpcm.predictor;
}
}
float v=ima_adpcm.predictor/32767.0;
if (v>max[0])
max[0]=v;
if (v<min[0])
min[0]=v;
}
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 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(TTR("Length:")+" "+vformat(TTR("%i frames"), sample->get_length())+" ("+String::num(sample->get_length()/(float)sample->get_mix_rate(),2)+" s), "+(sample->get_format()==Sample::FORMAT_PCM16?TTR("16 Bits"):TTR("8 Bits"))+", "+(sample->is_stereo()?TTR("Stereo"):TTR("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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