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furnace/src/gui/waveEdit.cpp
tildearrow 373367724b GUI: use canvasW/H instead of scrW/H*dpiScale
2022-10-20 02:34:14 -05:00

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 tildearrow and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _USE_MATH_DEFINES
#include "gui.h"
#include "plot_nolerp.h"
#include "IconsFontAwesome4.h"
#include "misc/cpp/imgui_stdlib.h"
#include <fmt/printf.h>
#include <math.h>
#include <imgui.h>
const char* waveGenBaseShapes[4]={
"Sine",
"Triangle",
"Saw",
"Pulse"
};
const char* waveInterpolations[4]={
"None",
"Linear",
"Cosine",
"Cubic"
};
const float multFactors[17]={
M_PI,
2*M_PI,
4*M_PI,
6*M_PI,
8*M_PI,
10*M_PI,
12*M_PI,
14*M_PI,
16*M_PI,
18*M_PI,
20*M_PI,
22*M_PI,
24*M_PI,
26*M_PI,
28*M_PI,
30*M_PI,
32*M_PI,
};
void FurnaceGUI::doGenerateWave() {
float finalResult[256];
if (curWave<0 || curWave>=(int)e->song.wave.size()) return;
DivWavetable* wave=e->song.wave[curWave];
memset(finalResult,0,sizeof(float)*256);
if (wave->len<2) return;
if (waveGenFM) {
float s0fb0=0;
float s0fb1=0;
float s1fb0=0;
float s1fb1=0;
float s2fb0=0;
float s2fb1=0;
float s3fb0=0;
float s3fb1=0;
for (int i=0; i<wave->len; i++) {
float pos=(float)i/(float)wave->len;
float s0=sin((pos+(waveGenFB[0]?((s0fb0+s0fb1)*pow(2.0f,waveGenFB[0]-8)):0.0f))*multFactors[waveGenMult[0]])*waveGenTL[0];
s0fb0=s0fb1;
s0fb1=s0;
float s1=sin((pos+(waveGenFB[1]?((s1fb0+s1fb1)*pow(2.0f,waveGenFB[1]-8)):0.0f)+(waveGenFMCon1[0]?s0:0.0f))*multFactors[waveGenMult[1]])*waveGenTL[1];
s1fb0=s1fb1;
s1fb1=s1;
float s2=sin((pos+(waveGenFB[2]?((s2fb0+s2fb1)*pow(2.0f,waveGenFB[2]-8)):0.0f)+(waveGenFMCon1[1]?s0:0.0f)+(waveGenFMCon2[0]?s1:0.0f))*multFactors[waveGenMult[2]])*waveGenTL[2];
s2fb0=s2fb1;
s2fb1=s2;
float s3=sin((pos+(waveGenFB[3]?((s3fb0+s3fb1)*pow(2.0f,waveGenFB[3]-8)):0.0f)+(waveGenFMCon1[2]?s0:0.0f)+(waveGenFMCon2[1]?s1:0.0f)+(waveGenFMCon3[0]?s2:0.0f))*multFactors[waveGenMult[3]])*waveGenTL[3];
s3fb0=s3fb1;
s3fb1=s3;
if (waveGenFMCon1[3]) finalResult[i]+=s0;
if (waveGenFMCon2[2]) finalResult[i]+=s1;
if (waveGenFMCon3[1]) finalResult[i]+=s2;
finalResult[i]+=s3;
}
} else {
switch (waveGenBaseShape) {
case 0: // sine
for (int i=0; i<wave->len; i++) {
for (int j=0; j<16; j++) {
float pos=fmod((waveGenPhase[j]*wave->len)+(i*(j+1)),wave->len);
float partial=sin((0.5+pos)*2.0*M_PI/(double)wave->len);
partial=pow(partial,waveGenPower);
partial*=waveGenAmp[j];
finalResult[i]+=partial;
}
}
break;
case 1: // triangle
for (int i=0; i<wave->len; i++) {
for (int j=0; j<16; j++) {
float pos=fmod((waveGenPhase[j]*wave->len)+(i*(j+1)),wave->len);
float partial=4.0*(0.5-fabs(0.5-(pos/(double)(wave->len-1))))-1.0;
partial=pow(partial,waveGenPower);
partial*=waveGenAmp[j];
finalResult[i]+=partial;
}
}
break;
case 2: // saw
for (int i=0; i<wave->len; i++) {
for (int j=0; j<16; j++) {
float pos=fmod((waveGenPhase[j]*wave->len)+(i*(j+1)),wave->len);
float partial=((2*pos)/(double)(wave->len-1))-1.0;
partial=pow(partial,waveGenPower);
partial*=waveGenAmp[j];
finalResult[i]+=partial;
}
}
break;
case 3: // pulse
for (int i=0; i<wave->len; i++) {
for (int j=0; j<16; j++) {
float pos=fmod((waveGenPhase[j]*wave->len)+(i*(j+1)),wave->len);
float partial=(pos>=(waveGenDuty*wave->len))?1:-1;
partial=pow(partial,waveGenPower);
partial*=waveGenAmp[j];
finalResult[i]+=partial;
}
}
break;
}
}
for (int i=waveGenInvertPoint*wave->len; i<wave->len; i++) {
finalResult[i]=-finalResult[i];
}
for (int i=0; i<wave->len; i++) {
finalResult[i]=(1.0+finalResult[i])*0.5;
if (finalResult[i]<0.0f) finalResult[i]=0.0f;
if (finalResult[i]>1.0f) finalResult[i]=1.0f;
wave->data[i]=round(finalResult[i]*wave->max);
}
e->notifyWaveChange(curWave);
MARK_MODIFIED;
}
#define CENTER_TEXT(text) \
ImGui::SetCursorPosX(ImGui::GetCursorPosX()+0.5*(ImGui::GetContentRegionAvail().x-ImGui::CalcTextSize(text).x));
void FurnaceGUI::drawWaveEdit() {
if (nextWindow==GUI_WINDOW_WAVE_EDIT) {
waveEditOpen=true;
ImGui::SetNextWindowFocus();
nextWindow=GUI_WINDOW_NOTHING;
}
if (!waveEditOpen) return;
float wavePreview[257];
if (mobileUI) {
patWindowPos=(portrait?ImVec2(0.0f,(mobileMenuPos*-0.65*canvasH)):ImVec2((0.16*canvasH)+0.5*canvasW*mobileMenuPos,0.0f));
patWindowSize=(portrait?ImVec2(canvasW,canvasH-(0.16*canvasW)-(pianoOpen?(0.4*canvasW):0.0f)):ImVec2(canvasW-(0.16*canvasH),canvasH-(pianoOpen?(0.3*canvasH):0.0f)));
ImGui::SetNextWindowPos(patWindowPos);
ImGui::SetNextWindowSize(patWindowSize);
} else {
ImGui::SetNextWindowSizeConstraints(ImVec2(300.0f*dpiScale,300.0f*dpiScale),ImVec2(canvasW,canvasH));
}
if (ImGui::Begin("Wavetable Editor",&waveEditOpen,globalWinFlags|(settings.allowEditDocking?0:ImGuiWindowFlags_NoDocking))) {
if (curWave<0 || curWave>=(int)e->song.wave.size()) {
ImGui::SetCursorPosY(ImGui::GetCursorPosY()+(ImGui::GetContentRegionAvail().y-ImGui::GetFrameHeightWithSpacing()*2.0f)*0.5f);
CENTER_TEXT("no wavetable selected");
ImGui::Text("no wavetable selected");
if (ImGui::BeginTable("noAssetCenter",3)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthStretch,0.5f);
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("c2",ImGuiTableColumnFlags_WidthStretch,0.5f);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::TableNextColumn();
if (e->song.wave.size()>0) {
if (ImGui::BeginCombo("##WaveSelect","select one...")) {
if (ImGui::BeginTable("WaveSelCombo",1,ImGuiTableFlags_ScrollY)) {
actualWaveList();
ImGui::EndTable();
}
ImGui::EndCombo();
}
ImGui::SameLine();
ImGui::TextUnformatted("or");
ImGui::SameLine();
}
if (ImGui::Button("Open")) {
doAction(GUI_ACTION_WAVE_LIST_OPEN);
}
ImGui::SameLine();
ImGui::TextUnformatted("or");
ImGui::SameLine();
if (ImGui::Button("Create New")) {
doAction(GUI_ACTION_WAVE_LIST_ADD);
}
ImGui::TableNextColumn();
ImGui::EndTable();
}
} else {
DivWavetable* wave=e->song.wave[curWave];
if (ImGui::BeginTable("WEProps",2)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthStretch);
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthFixed);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(80.0f*dpiScale);
if (ImGui::InputInt("##CurWave",&curWave,1,1)) {
if (curWave<0) curWave=0;
if (curWave>=(int)e->song.wave.size()) curWave=e->song.wave.size()-1;
}
ImGui::SameLine();
if (ImGui::Button(ICON_FA_FOLDER_OPEN "##WELoad")) {
doAction(GUI_ACTION_WAVE_LIST_OPEN_REPLACE);
}
ImGui::SameLine();
if (ImGui::Button(ICON_FA_FLOPPY_O "##WESave")) {
doAction(GUI_ACTION_WAVE_LIST_SAVE);
}
if (ImGui::BeginPopupContextItem("WaveSaveFormats",ImGuiMouseButton_Right)) {
if (ImGui::MenuItem("save as .dmw...")) {
doAction(GUI_ACTION_WAVE_LIST_SAVE_DMW);
}
if (ImGui::MenuItem("save raw...")) {
doAction(GUI_ACTION_WAVE_LIST_SAVE_RAW);
}
ImGui::EndPopup();
}
ImGui::SameLine();
if (ImGui::RadioButton("Steps",waveEditStyle==0)) {
waveEditStyle=0;
}
ImGui::SameLine();
if (ImGui::RadioButton("Lines",waveEditStyle==1)) {
waveEditStyle=1;
}
ImGui::TableNextColumn();
ImGui::Text("Width");
if (ImGui::IsItemHovered()) {
ImGui::SetTooltip("use a width of:\n- any on Amiga/N163\n- 32 on Game Boy, PC Engine, SCC, Konami Bubble System, Namco WSG, Virtual Boy and WonderSwan\n- 64 on FDS\n- 128 on X1-010\nany other widths will be scaled during playback.");
}
ImGui::SameLine();
ImGui::SetNextItemWidth(96.0f*dpiScale);
if (ImGui::InputInt("##_WTW",&wave->len,1,2)) {
if (wave->len>256) wave->len=256;
if (wave->len<1) wave->len=1;
e->notifyWaveChange(curWave);
if (wavePreviewOn) e->previewWave(curWave,wavePreviewNote);
MARK_MODIFIED;
}
ImGui::SameLine();
ImGui::Text("Height");
if (ImGui::IsItemHovered()) {
ImGui::SetTooltip("use a height of:\n- 15 for Game Boy, WonderSwan, Namco WSG, Konami Bubble System, X1-010 Envelope shape and N163\n- 31 for PC Engine\n- 63 for FDS and Virtual Boy\n- 255 for X1-010 and SCC\nany other heights will be scaled during playback.");
}
ImGui::SameLine();
ImGui::SetNextItemWidth(96.0f*dpiScale);
if (ImGui::InputInt("##_WTH",&wave->max,1,2)) {
if (wave->max>255) wave->max=255;
if (wave->max<1) wave->max=1;
e->notifyWaveChange(curWave);
MARK_MODIFIED;
}
ImGui::SameLine();
if (ImGui::Button(waveGenVisible?(ICON_FA_CHEVRON_RIGHT "##WEWaveGen"):(ICON_FA_CHEVRON_LEFT "##WEWaveGen"))) {
waveGenVisible=!waveGenVisible;
}
ImGui::EndTable();
}
for (int i=0; i<wave->len; i++) {
if (wave->data[i]>wave->max) wave->data[i]=wave->max;
wavePreview[i]=wave->data[i];
if (waveSigned && !waveHex) {
wavePreview[i]-=(int)((wave->max+1)/2);
}
}
if (wave->len>0) wavePreview[wave->len]=wave->data[wave->len-1];
if (ImGui::BeginTable("WEWaveSection",waveGenVisible?2:1)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthStretch);
if (waveGenVisible) ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthFixed,250.0f*dpiScale);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding,ImVec2(0.0f,0.0f));
ImVec2 contentRegion=ImGui::GetContentRegionAvail(); // wavetable graph size determined here
contentRegion.y-=ImGui::GetFrameHeightWithSpacing()+ImGui::GetStyle().WindowPadding.y;
if (waveEditStyle) {
PlotNoLerp("##Waveform",wavePreview,wave->len+1,0,NULL,(waveSigned && !waveHex)?(-(int)((wave->max+1)/2)):0,(waveSigned && !waveHex)?((int)(wave->max/2)):wave->max,contentRegion);
} else {
PlotCustom("##Waveform",wavePreview,wave->len,0,NULL,(waveSigned && !waveHex)?(-(int)((wave->max+1)/2)):0,(waveSigned && !waveHex)?((int)(wave->max/2)):wave->max,contentRegion,sizeof(float),ImVec4(1.0f,1.0f,1.0f,1.0f),0,NULL,NULL,true);
}
if (ImGui::IsItemClicked(ImGuiMouseButton_Left)) {
waveDragStart=ImGui::GetItemRectMin();
waveDragAreaSize=contentRegion;
waveDragMin=0;
waveDragMax=wave->max;
waveDragLen=wave->len;
waveDragActive=true;
waveDragTarget=wave->data;
processDrags(ImGui::GetMousePos().x,ImGui::GetMousePos().y);
e->notifyWaveChange(curWave);
modified=true;
}
ImGui::PopStyleVar();
if (waveGenVisible) {
ImGui::TableNextColumn();
if (ImGui::BeginTabBar("WaveGenOpt")) {
if (ImGui::BeginTabItem("Shapes")) {
waveGenFM=false;
if (waveGenBaseShape<0) waveGenBaseShape=0;
if (waveGenBaseShape>3) waveGenBaseShape=3;
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderInt("##WGShape",&waveGenBaseShape,0,3,waveGenBaseShapes[waveGenBaseShape])) {
if (waveGenBaseShape<0) waveGenBaseShape=0;
if (waveGenBaseShape>3) waveGenBaseShape=3;
doGenerateWave();
}
if (ImGui::BeginTable("WGShapeProps",2)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("Duty");
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderFloat("##WGDuty",&waveGenDuty,0.0f,1.0f)) {
doGenerateWave();
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("Exponent");
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderInt("##WGExp",&waveGenPower,1,8)) {
doGenerateWave();
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("XOR Point");
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderFloat("##WGXOR",&waveGenInvertPoint,0.0f,1.0f)) {
doGenerateWave();
}
ImGui::EndTable();
}
if (ImGui::TreeNode("Amplitude/Phase")) {
if (ImGui::BeginTable("WGShapeProps",3)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch,0.6f);
ImGui::TableSetupColumn("c2",ImGuiTableColumnFlags_WidthStretch,0.4f);
for (int i=0; i<16; i++) {
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("%d",i+1);
ImGui::TableNextColumn();
ImGui::PushID(140+i);
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderFloat("##WGAmp",&waveGenAmp[i],-1.0f,1.0f)) {
doGenerateWave();
}
if (ImGui::IsItemClicked(ImGuiMouseButton_Middle)) {
waveGenAmp[i]=0.0f;
doGenerateWave();
}
ImGui::PopID();
ImGui::TableNextColumn();
ImGui::PushID(140+i);
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderFloat("##WGPhase",&waveGenPhase[i],0.0f,1.0f)) {
doGenerateWave();
}
if (ImGui::IsItemClicked(ImGuiMouseButton_Middle)) {
waveGenPhase[i]=0.0f;
doGenerateWave();
}
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TreePop();
}
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("FM")) {
waveGenFM=true;
if (ImGui::BeginTable("WGFMProps",4)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed,ImGui::CalcTextSize("Op").x);
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch,0.5);
ImGui::TableSetupColumn("c2",ImGuiTableColumnFlags_WidthStretch,0.25);
ImGui::TableSetupColumn("c3",ImGuiTableColumnFlags_WidthStretch,0.25);
ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
ImGui::TableNextColumn();
ImGui::Text("Op");
ImGui::TableNextColumn();
ImGui::Text("Level");
ImGui::TableNextColumn();
ImGui::Text("Mult");
ImGui::TableNextColumn();
ImGui::Text("FB");
for (int i=0; i<4; i++) {
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("%d",i+1);
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
ImGui::PushID(i);
if (CWSliderFloat("##WGTL",&waveGenTL[i],0.0f,1.0f)) {
doGenerateWave();
}
ImGui::PopID();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
ImGui::PushID(i);
if (CWSliderInt("##WGMULT",&waveGenMult[i],1,16)) {
doGenerateWave();
}
ImGui::PopID();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
ImGui::PushID(i);
if (CWSliderInt("##WGFB",&waveGenFB[i],0,7)) {
doGenerateWave();
}
ImGui::PopID();
}
ImGui::EndTable();
}
CENTER_TEXT("Connection Diagram");
ImGui::Text("Connection Diagram");
if (ImGui::BeginTable("WGFMCon",5)) {
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text(">>");
ImGui::TableNextColumn();
ImGui::Text("2");
ImGui::TableNextColumn();
ImGui::Text("3");
ImGui::TableNextColumn();
ImGui::Text("4");
ImGui::TableNextColumn();
ImGui::Text("Out");
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("1");
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con12",&waveGenFMCon1[0])) {
doGenerateWave();
}
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con13",&waveGenFMCon1[1])) {
doGenerateWave();
}
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con14",&waveGenFMCon1[2])) {
doGenerateWave();
}
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con1O",&waveGenFMCon1[3])) {
doGenerateWave();
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("2");
ImGui::TableNextColumn();
// blank
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con23",&waveGenFMCon2[0])) {
doGenerateWave();
}
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con24",&waveGenFMCon2[1])) {
doGenerateWave();
}
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con2O",&waveGenFMCon2[2])) {
doGenerateWave();
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::Text("3");
ImGui::TableNextColumn();
// blank
ImGui::TableNextColumn();
// blank
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con34",&waveGenFMCon3[0])) {
doGenerateWave();
}
ImGui::TableNextColumn();
if (ImGui::Checkbox("##Con3O",&waveGenFMCon3[1])) {
doGenerateWave();
}
ImGui::EndTable();
}
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("WaveTools")) {
if (ImGui::BeginTable("WGParamItems",2)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthStretch);
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthFixed);
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (ImGui::InputInt("##WGScaleX",&waveGenScaleX,1,16)) {
if (waveGenScaleX<2) waveGenScaleX=2;
if (waveGenScaleX>256) waveGenScaleX=256;
}
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (CWSliderInt("##WGInterpolation",&waveInterpolation,0,3,waveInterpolations[waveInterpolation])) {
if (waveInterpolation<0) waveInterpolation=0;
if (waveInterpolation>3) waveInterpolation=3;
}
ImGui::TableNextColumn();
if (ImGui::Button("Scale X")) {
if (waveGenScaleX>0 && wave->len!=waveGenScaleX) e->lockEngine([this,wave]() {
int origData[256];
// Copy original wave to temp buffer
// If longer than 256 samples, return
if (wave->len>256) {
showError("wavetable longer than 256 samples!");
return;
}
memcpy(origData,wave->data,wave->len*sizeof(int));
float t=0; // Index used into `origData`
for (int i=0; i<waveGenScaleX; i++, t+=(float)wave->len/waveGenScaleX) {
switch (waveInterpolation) {
case 0: {
wave->data[i]=origData[i*wave->len/waveGenScaleX];
break;
}
case 1: { // Linear
int idx=t; // Implicitly floors `t`
int s0=origData[(idx)%wave->len];
int s1=origData[(idx+1)%wave->len];
double mu=(t-idx);
wave->data[i]=s0+mu*s1-(mu*s0);
break;
}
case 2: { // Cosine
int idx=t; // Implicitly floors `t`
int s0=origData[(idx)%wave->len];
int s1=origData[(idx+1)%wave->len];
double mu=(t-idx);
double muCos=(1-cos(mu*M_PI))/2;
wave->data[i]=s0+muCos*s1-(muCos*s0);
break;
}
case 3: { // Cubic Spline
int idx=t; // Implicitly floors `t`
int s0=origData[((idx-1%wave->len+wave->len)%wave->len)];
int s1=origData[(idx)%wave->len];
int s2=origData[(idx+1)%wave->len];
int s3=origData[(idx+2)%wave->len];
double mu=(t-idx);
double mu2=mu*mu;
double a0=-0.5*s0+1.5*s1-1.5*s2+0.5*s3;
double a1=s0-2.5*s1+2*s2-0.5*s3;
double a2=-0.5*s0+0.5*s2;
double a3=s1;
wave->data[i]=(a0*mu*mu2+a1*mu2+a2*mu+a3);
break;
}
default: { // No interpolation
wave->data[i]=origData[i*wave->len/waveGenScaleX];
break;
}
}
}
wave->len=waveGenScaleX;
MARK_MODIFIED;
});
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (ImGui::InputInt("##WGScaleY",&waveGenScaleY,1,16)) {
if (waveGenScaleY<2) waveGenScaleY=2;
if (waveGenScaleY>256) waveGenScaleY=256;
}
ImGui::TableNextColumn();
if (ImGui::Button("Scale Y")) {
if (waveGenScaleY>0 && wave->max!=waveGenScaleY) e->lockEngine([this,wave]() {
for (int i=0; i<wave->len; i++) {
wave->data[i]=(wave->data[i]*(waveGenScaleY+1))/(wave->max+1);
}
wave->max=waveGenScaleY;
MARK_MODIFIED;
});
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (ImGui::InputInt("##WGOffsetX",&waveGenOffsetX,1,16)) {
if (waveGenOffsetX<-wave->len+1) waveGenOffsetX=-wave->len+1;
if (waveGenOffsetX>wave->len-1) waveGenOffsetX=wave->len-1;
}
ImGui::TableNextColumn();
if (ImGui::Button("Offset X")) {
if (waveGenOffsetX!=0 && wave->len>0) e->lockEngine([this,wave]() {
int origData[256];
memcpy(origData,wave->data,wave->len*sizeof(int));
int realOff=-waveGenOffsetX;
while (realOff<0) realOff+=wave->len;
for (int i=0; i<wave->len; i++) {
wave->data[i]=origData[(i+realOff)%wave->len];
}
MARK_MODIFIED;
});
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (ImGui::InputInt("##WGOffsetY",&waveGenOffsetY,1,16)) {
if (waveGenOffsetY<-wave->max) waveGenOffsetY=-wave->max;
if (waveGenOffsetY>wave->max) waveGenOffsetY=wave->max;
}
ImGui::TableNextColumn();
if (ImGui::Button("Offset Y")) {
if (waveGenOffsetY!=0) e->lockEngine([this,wave]() {
for (int i=0; i<wave->len; i++) {
wave->data[i]=CLAMP(wave->data[i]+waveGenOffsetY,0,wave->max);
}
MARK_MODIFIED;
});
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
if (ImGui::InputInt("##WGSmooth",&waveGenSmooth,1,4)) {
if (waveGenSmooth>wave->len) waveGenSmooth=wave->len;
if (waveGenSmooth<1) waveGenSmooth=1;
}
ImGui::TableNextColumn();
if (ImGui::Button("Smooth")) {
if (waveGenSmooth>0) e->lockEngine([this,wave]() {
int origData[256];
memcpy(origData,wave->data,wave->len*sizeof(int));
for (int i=0; i<wave->len; i++) {
int dataSum=0;
for (int j=i; j<i+waveGenSmooth+1; j++) {
int pos=(j-((waveGenSmooth+1)/2));
while (pos<0) pos+=wave->len;
dataSum+=origData[pos%wave->len];
}
dataSum/=waveGenSmooth+1;
wave->data[i]=dataSum;
}
MARK_MODIFIED;
});
}
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
float amp=waveGenAmplify*100.0f;
if (ImGui::InputFloat("##WGAmplify",&amp,1.0f,10.0f)) {
waveGenAmplify=amp/100.0f;
if (waveGenAmplify<0.0f) waveGenAmplify=0.0f;
if (waveGenAmplify>100.0f) waveGenAmplify=100.0f;
}
ImGui::TableNextColumn();
if (ImGui::Button("Amplify")) {
if (waveGenAmplify!=1.0f) e->lockEngine([this,wave]() {
for (int i=0; i<wave->len; i++) {
wave->data[i]=CLAMP(round((float)(wave->data[i]-(int)( /* Clang can you stop complaining */ (int)(wave->max+1)/(int)2))*waveGenAmplify),(int)(-((wave->max+1)/2)),(int)(wave->max/2))+(int)((wave->max+1)/2);
}
MARK_MODIFIED;
});
}
ImGui::EndTable();
}
ImVec2 buttonSize=ImGui::GetContentRegionAvail();
buttonSize.y=0.0f;
ImVec2 buttonSizeHalf=buttonSize;
buttonSizeHalf.x-=ImGui::GetStyle().ItemSpacing.x;
buttonSizeHalf.x*=0.5;
if (ImGui::Button("Normalize",buttonSize)) {
e->lockEngine([this,wave]() {
// find lowest point
int lowest=wave->max;
for (int i=0; i<wave->len; i++) {
if (wave->data[i]<lowest) lowest=wave->data[i];
}
// find highest point
int highest=0;
for (int i=0; i<wave->len; i++) {
if (wave->data[i]>highest) highest=wave->data[i];
}
// abort if lowest and highest points are equal
if (lowest==highest) return;
// abort if lowest and highest points already span the entire height
if (lowest==wave->max && highest==0) return;
// apply offset
for (int i=0; i<wave->len; i++) {
wave->data[i]-=lowest;
}
highest-=lowest;
// scale
for (int i=0; i<wave->len; i++) {
wave->data[i]=(wave->data[i]*wave->max)/highest;
}
MARK_MODIFIED;
});
}
if (ImGui::Button("Invert",buttonSize)) {
e->lockEngine([this,wave]() {
for (int i=0; i<wave->len; i++) {
wave->data[i]=wave->max-wave->data[i];
}
MARK_MODIFIED;
});
}
if (ImGui::Button("Half",buttonSizeHalf)) {
int origData[256];
memcpy(origData,wave->data,wave->len*sizeof(int));
for (int i=0; i<wave->len; i++) {
wave->data[i]=origData[i>>1];
}
MARK_MODIFIED;
}
ImGui::SameLine();
if (ImGui::Button("Double",buttonSizeHalf)) {
int origData[256];
memcpy(origData,wave->data,wave->len*sizeof(int));
for (int i=0; i<wave->len; i++) {
wave->data[i]=origData[(i*2)%wave->len];
}
MARK_MODIFIED;
}
if (ImGui::Button("Convert Signed/Unsigned",buttonSize)) {
if (wave->max>0) e->lockEngine([this,wave]() {
for (int i=0; i<wave->len; i++) {
if (wave->data[i]>(wave->max/2)) {
wave->data[i]-=(wave->max+1)/2;
} else {
wave->data[i]+=(wave->max+1)/2;
}
}
MARK_MODIFIED;
});
}
if (ImGui::Button("Randomize",buttonSize)) {
if (wave->max>0) e->lockEngine([this,wave]() {
for (int i=0; i<wave->len; i++) {
wave->data[i]=rand()%(wave->max+1);
}
MARK_MODIFIED;
});
}
ImGui::EndTabItem();
}
ImGui::EndTabBar();
}
}
ImGui::EndTable();
}
if (ImGui::RadioButton("Dec",!waveHex)) {
waveHex=false;
}
ImGui::SameLine();
if (ImGui::RadioButton("Hex",waveHex)) {
waveHex=true;
}
ImGui::SameLine();
if (!waveHex) if (ImGui::Button(waveSigned?"±##WaveSign":"+##WaveSign",ImVec2(ImGui::GetFrameHeight(),ImGui::GetFrameHeight()))) {
waveSigned=!waveSigned;
}
if (ImGui::IsItemHovered()) {
ImGui::SetTooltip("Signed/Unsigned");
}
ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x); // wavetable text input size found here
if (ImGui::InputText("##MMLWave",&mmlStringW)) {
int actualData[256];
decodeMMLStrW(mmlStringW,actualData,wave->len,(waveSigned && !waveHex)?(-((wave->max+1)/2)):0,(waveSigned && !waveHex)?(wave->max/2):wave->max,waveHex);
MARK_MODIFIED;
if (waveSigned && !waveHex) {
for (int i=0; i<wave->len; i++) {
actualData[i]+=(wave->max+1)/2;
}
}
memcpy(wave->data,actualData,wave->len*sizeof(int));
}
if (!ImGui::IsItemActive()) {
int actualData[256];
memcpy(actualData,wave->data,256*sizeof(int));
if (waveSigned && !waveHex) {
for (int i=0; i<wave->len; i++) {
actualData[i]-=(wave->max+1)/2;
}
}
encodeMMLStr(mmlStringW,actualData,wave->len,-1,-1,waveHex);
}
}
}
if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_WAVE_EDIT;
ImGui::End();
}
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