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GUI: wave generator, part 1

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This commit is contained in:
tildearrow 2022-07-27 01:20:26 -05:00
parent 173e9b0df9
commit 7d5f5a91c6
3 changed files with 80 additions and 2 deletions
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61
src/gui/waveEdit.cpp
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@ -17,12 +17,60 @@
* 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 <math.h>
#include <imgui.h>
const char* waveGenBaseShapes[4]={
"Sine",
"Triangle",
"Saw",
"Pulse"
};
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 (waveGenFM) {
} else {
switch (waveGenBaseShape) {
case 0: // sine
for (int i=0; i<wave->len; i++) {
finalResult[i]=0.5*(1.0+sin(i*2.0*M_PI/(double)wave->len));
}
break;
case 1: // triangle
for (int i=0; i<wave->len; i++) {
finalResult[i]=2.0*(0.5-fabs(0.5-(i/(double)(wave->len-1))));
}
break;
case 2: // saw
for (int i=0; i<wave->len; i++) {
finalResult[i]=i/(double)(wave->len-1);
}
break;
case 3: // pulse
for (int i=0; i<wave->len; i++) {
finalResult[i]=(i>=(wave->len/2))?1:0;
}
break;
}
}
for (int i=0; i<wave->len; i++) {
wave->data[i]=round(finalResult[i]*wave->max);
}
}
void FurnaceGUI::drawWaveEdit() {
if (nextWindow==GUI_WINDOW_WAVE_EDIT) {
waveEditOpen=true;
@ -144,10 +192,21 @@ void FurnaceGUI::drawWaveEdit() {
if (ImGui::BeginTabBar("WaveGenOpt")) {
if (ImGui::BeginTabItem("Shapes")) {
ImGui::Button("Square");
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();
}
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("FM")) {
waveGenFM=true;
ImGui::EndTabItem();
}
if (ImGui::BeginTabItem("Mangle")) {