shithub: m8c

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add Velocity to keyjazz

--- a/input.c

+++ b/input.c

@@ -27,6 +27,7 @@

 uint8_t keyjazz_enabled = 0;

 uint8_t keyjazz_base_octave = 2;

+uint8_t keyjazz_velocity = 0x64;

 static uint8_t keycode = 0; // value of the pressed key

 static int num_joysticks = 0;

@@ -91,7 +92,7 @@

 }

 static input_msg_s handle_keyjazz(SDL_Event *event, uint8_t keyvalue) {

-  input_msg_s key = {keyjazz, keyvalue, event->type};

+  input_msg_s key = {keyjazz, keyvalue, keyjazz_velocity, event->type};

   switch (event->key.keysym.scancode) {

   case SDL_SCANCODE_Z:

     key.value = keyjazz_base_octave * 12;

@@ -184,7 +185,7 @@

     key.type = normal;

     if (event->type == SDL_KEYDOWN && keyjazz_base_octave > 0) {

       keyjazz_base_octave--;

-      display_keyjazz_overlay(1, keyjazz_base_octave);

+      display_keyjazz_overlay(1, keyjazz_base_octave, keyjazz_velocity);

     }

     break;

   case SDL_SCANCODE_KP_MULTIPLY:

@@ -191,9 +192,35 @@

     key.type = normal;

     if (event->type == SDL_KEYDOWN && keyjazz_base_octave < 8) {

       keyjazz_base_octave++;

-      display_keyjazz_overlay(1, keyjazz_base_octave);

+      display_keyjazz_overlay(1, keyjazz_base_octave, keyjazz_velocity);

     }

     break;

+  case SDL_SCANCODE_KP_MINUS:

+    key.type = normal;

+    if (event->type == SDL_KEYDOWN) {

+      if ((event->key.keysym.mod & KMOD_ALT) > 0) {

+        if (keyjazz_velocity > 1)

+          keyjazz_velocity -= 1;

+      } else {

+        if (keyjazz_velocity > 0x10)

+          keyjazz_velocity -= 0x10;

+      }

+      display_keyjazz_overlay(1, keyjazz_base_octave, keyjazz_velocity);

+    }

+    break;

+  case SDL_SCANCODE_KP_PLUS:

+    key.type = normal;

+    if (event->type == SDL_KEYDOWN) {

+      if ((event->key.keysym.mod & KMOD_ALT) > 0) {

+        if (keyjazz_velocity < 0x7F)

+          keyjazz_velocity += 1;

+      } else {

+        if (keyjazz_velocity < 0x6F)

+          keyjazz_velocity += 0x10;

+      }

+      display_keyjazz_overlay(1, keyjazz_base_octave, keyjazz_velocity);

+    }

+    break;

   default:

     key.type = normal;

     break;

@@ -370,7 +397,7 @@

     // ESC = toggle keyjazz

     if (event.key.keysym.sym == SDLK_ESCAPE) {

-      display_keyjazz_overlay(toggle_input_keyjazz(), keyjazz_base_octave);

+      display_keyjazz_overlay(toggle_input_keyjazz(), keyjazz_base_octave, keyjazz_velocity);

     }

   // Normal keyboard inputs

--- a/input.h

+++ b/input.h

@@ -32,6 +32,7 @@

 typedef struct input_msg_s {

   input_type_t type;

   uint8_t value;

+  uint8_t value2;

   uint32_t eventType;

 } input_msg_s;

--- a/main.c

+++ b/main.c

@@ -90,7 +90,7 @@

     case keyjazz:

       if (input.value != 0) {

         if (input.eventType == SDL_KEYDOWN && input.value != prev_input) {

-          send_msg_keyjazz(port, input.value, 0xFF);

+          send_msg_keyjazz(port, input.value, input.value2);

           prev_note = input.value;

         } else if (input.eventType == SDL_KEYUP && input.value == prev_note) {

           send_msg_keyjazz(port, 0xFF, 0);

--- a/render.c

+++ b/render.c

@@ -165,7 +165,7 @@

   }

 }

-void display_keyjazz_overlay(uint8_t show, uint8_t base_octave) {

+void display_keyjazz_overlay(uint8_t show, uint8_t base_octave, uint8_t velocity) {

   if (show) {

     struct draw_rectangle_command drc;

@@ -181,19 +181,27 @@

     dcc.background = (struct color){background_color.r, background_color.g,

                                     background_color.b};

     dcc.foreground = (struct color){200, 200, 200};

-    dcc.c = base_octave + 48;

-    dcc.pos.x = 300;

+    dcc.pos.x = 296;

     dcc.pos.y = 226;

     draw_character(&dcc);

+    char buf[8];

+    sprintf(buf, "%02X %u", velocity, base_octave);

+

+    for (int i = 3; i >= 0; i--){

+      dcc.c = buf[i];

+      draw_character(&dcc);

+      dcc.pos.x -= 8;

+    }

+

   } else {

     struct draw_rectangle_command drc;

     drc.color = (struct color){background_color.r, background_color.g,

                                background_color.b};

-    drc.pos.x = 300;

+    drc.pos.x = 272;

     drc.pos.y = 226;

-    drc.size.width = 20;

+    drc.size.width = 45;

     drc.size.height = 14;

     draw_rectangle(&drc);

--- a/render.h

+++ b/render.h

@@ -16,6 +16,6 @@

 void render_screen();

 void toggle_fullscreen();

-void display_keyjazz_overlay(uint8_t show, uint8_t base_octave);

+void display_keyjazz_overlay(uint8_t show, uint8_t base_octave, uint8_t velocity);

 #endif

\ No newline at end of file

--- a/write.c

+++ b/write.c

@@ -71,8 +71,8 @@

 }

 int send_msg_keyjazz(struct sp_port *port, uint8_t note, uint8_t velocity) {

-  if (velocity > 64)

-    velocity = 64;

+  if (velocity > 0x7F)

+    velocity = 0x7F;

   char buf[3] = {'K',note,velocity};

   size_t nbytes = 3;

   int result;

-- 

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