misc

Author: koppi

src/gui.cpp

@@ -572,6 +572,162 @@ void gui_draw(Synth *synth, SDL_Window *window, SDL_GLContext gl_context) {
         ImGui::SliderInt("Octaves", &synth->arp.octaves, 1, 6, "%d");
         ImGui::Checkbox("Polyphonic", (bool*)&synth->arp.polyphonic);
         ImGui::Checkbox("Hold", (bool*)&synth->arp.hold);
+        
+        ImGui::Separator();
+        ImGui::Text("Presets:");
+        ImGui::Columns(4, "arp_presets", true);
+        
+        if (ImGui::Button("Classic Up")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 120.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("8th notes");
+        
+        if (ImGui::Button("Classic Down")) {
+            synth->arp.mode = ARP_DOWN;
+            synth->arp.tempo = 120.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Descending");
+        
+        if (ImGui::Button("Synth Pop")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 130.0f;
+            synth->arp.octaves = 3;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 1;
+        }
+        ImGui::SameLine(); ImGui::Text("Pop style");
+        
+        if (ImGui::Button("Bass Line")) {
+            synth->arp.mode = ARP_ORDER;
+            synth->arp.tempo = 128.0f;
+            synth->arp.octaves = 1;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Sequential");
+        
+        ImGui::NextColumn();
+        
+        if (ImGui::Button("Trance Gate")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 140.0f;
+            synth->arp.octaves = 4;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 1;
+        }
+        ImGui::SameLine(); ImGui::Text("16th notes");
+        
+        if (ImGui::Button("Random Chaos")) {
+            synth->arp.mode = ARP_RANDOM;
+            synth->arp.tempo = 100.0f;
+            synth->arp.octaves = 3;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Unpredictable");
+        
+        if (ImGui::Button("House Chord")) {
+            synth->arp.mode = ARP_ORDER;
+            synth->arp.tempo = 124.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 1;
+        }
+        ImGui::SameLine(); ImGui::Text("Progressive");
+        
+        if (ImGui::Button("Ambient Pad")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 60.0f;
+            synth->arp.octaves = 3;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 1;
+        }
+        ImGui::SameLine(); ImGui::Text("Slow & wide");
+        
+        ImGui::NextColumn();
+        
+        if (ImGui::Button("Techno Pulse")) {
+            synth->arp.mode = ARP_DOWN;
+            synth->arp.tempo = 135.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Driving");
+        
+        if (ImGui::Button("Dub Sequence")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 70.0f;
+            synth->arp.octaves = 1;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Reggae");
+        
+        if (ImGui::Button("DnB Roll")) {
+            synth->arp.mode = ARP_RANDOM;
+            synth->arp.tempo = 174.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Fast");
+        
+        if (ImGui::Button("Video Game")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 110.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("8-bit");
+        
+        ImGui::NextColumn();
+        
+        if (ImGui::Button("Arpeggiator")) {
+            synth->arp.mode = ARP_UP;
+            synth->arp.tempo = 92.0f;
+            synth->arp.octaves = 4;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Classic");
+        
+        if (ImGui::Button("Dream Pop")) {
+            synth->arp.mode = ARP_ORDER;
+            synth->arp.tempo = 80.0f;
+            synth->arp.octaves = 3;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 1;
+        }
+        ImGui::SameLine(); ImGui::Text("Ethereal");
+        
+        if (ImGui::Button("Industrial")) {
+            synth->arp.mode = ARP_RANDOM;
+            synth->arp.tempo = 160.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 0;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Harsh");
+        
+        if (ImGui::Button("Jazz Walker")) {
+            synth->arp.mode = ARP_ORDER;
+            synth->arp.tempo = 140.0f;
+            synth->arp.octaves = 2;
+            synth->arp.polyphonic = 1;
+            synth->arp.hold = 0;
+        }
+        ImGui::SameLine(); ImGui::Text("Walking");
+        
+        ImGui::Columns(1, "", false);
     }
 
     // Oscilloscope

src/ring_modulator.c

@@ -1,6 +1,10 @@
 #include "ring_modulator.h"
 #include <math.h>
 
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
 void ring_mod_init(RingModulator *rm, float sample_rate) {
     rm->frequency = 100.0f;  // 100 Hz default
     rm->mix = 0.0f;          // Dry by default