Near complete rewrite.

1 files changed, 104 insertions, 68 deletions

diff --git a/engine.c b/engine.c
index 0d92b50..43892fb 100644
--- a/engine.c
+++ b/engine.c
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 
 #include "config.h"
+#include "geometry.h"
 #include "engine.h"
 #include "main.h"
 #include "midi.h"
@@ -13,91 +14,131 @@ static int g_selected_string = -1;
 
 static LPoint g_render_points[1024];
 static int g_render_point_count;
-static const int g_harfe_width = 1024;
-static const int g_harfe_height = 768;
-static int g_factor = 1<<16;
+static ConfigSelect g_selected_config;
+static void highlight_line(int value, int y, int max_x, uint32_t color);
 
-static inline int scale(int coord) {
-        return (int)(((((int64_t)coord) << 32) / g_factor ) >> 16);
-}
+#define scale(X) display_scale_harfe_to_screen(X)
 
 void
 engine_redraw()
 {
-        int i;
+        char text[32];
+        char *config_hints[] = { "No", "Harfe", "File", "Edit" };
+        int i, MAX_X, MAX_Y, FONT_HEIGHT;
+        int height = g_max_y - g_min_y;
 
         display_redraw();
         display_clear();
-        display_text(g_harfe_connected ? "online" : "offline", 4, 4, 0xffffffff);
+        display_getdimensions(&MAX_X, &MAX_Y, &FONT_HEIGHT);
 
-        for (i = 0; i < g_string_count; ++i) {
-                LLine *l = &g_string_conf[i].line;
-                uint32_t color = i == g_selected_string ? 0xff00ffff : 0x00ffffffff;
+        snprintf( text, sizeof(text), g_harfe_connected ? "online (%s)" : "offline (%s)", config_hints[(int)g_config_source]);
+        display_text(text, 8, MAX_Y - 4, g_harfe_connected ? 0x00ff3fff : 0xff003fff );
 
-                display_line_color(scale(l->x0), scale(l->y0), scale(l->x1), scale(l->y1), color);
-                display_circle(scale(l->x0), scale(l->y0), 4);
-                display_circle(scale(l->x1), scale(l->y1), 4);
+        if (height) {
+                int b = g_midi_three_octave_split_inverse;
+                int tos1 = g_midi_three_octave_split_1, tos2 = g_midi_three_octave_split_2;
+                display_text( b ? "+1" : "-1", 4, scale(g_min_y + tos1 * height / 200) + FONT_HEIGHT / 2, 0x007f7f7fff);
+                display_text(            " 0", 4, scale(g_min_y + (tos1 + tos2) * height / 200) + FONT_HEIGHT / 2, 0x007f7f7fff);
+                display_text( b ? "-1" : "+1", 4, scale(g_min_y + (tos2 / 2 + 50 ) * height / 100) + FONT_HEIGHT / 2, 0x007f7f7fff);
 
-                if (g_string_conf[i].playing)
-                    display_text(config_midi_note_to_string(g_string_conf[i].note+12*g_string_conf[i].octave), scale(l->x1) - 20, g_height - 40, color );
-                else
-                    display_text(config_midi_note_to_string(g_string_conf[i].note), scale(l->x1) - 20, g_height - 40, color );
+                display_line_color(0, scale(g_min_y), MAX_X, scale(g_min_y), 0xff00ffff);
+                display_line_color(0, scale(g_max_y), MAX_X, scale(g_max_y), 0xff00ffff);
+
+                display_line_color(0, scale(g_min_y + g_midi_two_octave_split * height / 100), MAX_X, scale(g_min_y + g_midi_two_octave_split * height / 100), 0xffff00ff);
+
+                display_line_color(0, scale(g_min_y + tos1 * height / 100), MAX_X, scale(g_min_y + tos1 * height / 100), 0x00ff00ff);
+                display_line_color(0, scale(g_min_y + tos2 * height / 100), MAX_X, scale(g_min_y + tos2 * height / 100), 0x00ff00ff);
+
+
+                switch (g_selected_config) {
+                        case sel_min_y:         highlight_line(g_min_y, g_min_y, MAX_X, 0xff00ffff); break;
+                        case sel_max_y:         highlight_line(g_max_y, g_max_y, MAX_X, 0xff00ffff); break;
+                        case sel_2_oct:         highlight_line(g_midi_two_octave_split, g_min_y + g_midi_two_octave_split * height / 100, MAX_X, 0xffff00ff); break;
+                        case sel_3_oct_top:     highlight_line(tos2, g_min_y + tos2 * height / 100, MAX_X, 0x00ff00ff); break;
+                        case sel_3_oct_bottom:  highlight_line(tos1, g_min_y + tos1 * height / 100, MAX_X, 0x00ff00ff); break;
+                        case sel_none: break;
+                }
+
+                for (i = 0; i < g_string_count; ++i) {
+                    LLine *l = &g_string_conf[i].line;
+                    uint32_t color = ( ( i == g_selected_string ) ? 0xff00ffff : 0x00ffffffff );
+                    uint32_t text_color = ( ( i == g_selected_string ) ? 0xff00ffff : 0x007f7f7fff );
+
+                    int center_y = g_min_y+height/2;
+                    int x2 = l->p1.x;
+
+                    if (l->p1.x!=l->p0.x) {
+                        double m = (double)(l->p1.y-l->p0.y) / (double)(l->p1.x-l->p0.x);
+                        double _x2 = ((double)center_y) - (double)l->p0.y + m * (double)l->p0.x;
+                        x2 = (int)(_x2/m);
+                    }
+
+                    if (g_string_conf[i].playing)
+                        display_text(config_midi_note_to_string(g_string_conf[i].note+12*g_string_conf[i].octave), scale(x2-20), scale(center_y) + FONT_HEIGHT, text_color );
+                    else
+                        display_text(config_midi_note_to_string(g_string_conf[i].note), scale(x2-20), scale(center_y) + FONT_HEIGHT, text_color );
+
+                    display_line_color(scale(l->p0.x), scale(l->p0.y), scale(l->p1.x), scale(l->p1.y), color);
+                    display_circle(scale(l->p0.x), scale(l->p0.y), 4);
+                    display_circle(scale(l->p1.x), scale(l->p1.y), 4);
+
+                }
         }
         g_selected_string = -1;
 
         for (i = 0; i < g_render_point_count; ++i)
                 display_circle_color(scale(g_render_points[i].x), scale(g_render_points[i].y), 4, 0xff0000ff);
         g_render_point_count = 0;
+}
 
-        display_line_color(0, scale(g_min_y), g_width, scale(g_min_y), 0xff00ffff);
-        display_line_color(0, scale(g_max_y), g_width, scale(g_max_y), 0xff00ffff);
-
-        if (g_min_y != g_max_y) {
-                int height = scale(g_max_y - g_min_y);
-
-                display_line_color(0, scale(g_max_y) - g_midi_two_octave_split * height / 256, g_width, scale(g_max_y) - g_midi_two_octave_split * height / 256, 0xffff00ff);
+static void
+highlight_line(int value, int y, int max_x, uint32_t color) {
+    char text[32];
+    display_line_color(0, scale(y-10), 10, scale(y), color);
+    display_line_color(0, scale(y+10), 10, scale(y), color);
+    display_line_color(max_x, scale(y-10), max_x-10, scale(y), color);
+    display_line_color(max_x, scale(y+10), max_x-10, scale(y), color);
 
-                display_line_color(0, scale(g_max_y) - g_midi_three_octave_split_1 * height / 256, g_width, scale(g_max_y) - g_midi_three_octave_split_1 * height / 256, 0x00ff00ff);
-                display_line_color(0, scale(g_max_y) - g_midi_three_octave_split_2 * height / 256, g_width, scale(g_max_y) - g_midi_three_octave_split_2 * height / 256, 0x00ff00ff);
-        }
+    display_rect_color(max_x/2-40, scale(y+20), 80, 40, 0xffffffff);
+    display_text(text, max_x/2-20, scale(y+20), 0);
 }
 
-#endif
-
 void
-engine_init() {
-#ifndef NO_DISPLAY
-        g_factor = (g_harfe_width << 16) / g_width;
-        if ((g_harfe_height << 16) / g_height < g_factor)
-                g_factor = (g_harfe_height << 16) / g_height;
-#endif
+engine_select_config(ConfigSelect sel) {
+    g_selected_config = sel;
 }
 
-static int
-dist_pp(int x0, int y0, int x1, int y1)
+ConfigSelect
+engine_change_selected(int off)
 {
-        return (y0 - y1) * (y0 - y1) + (x0 - x1) * (x0 - x1);
+    switch(g_selected_config) {
+        case sel_3_oct_top:
+            g_midi_three_octave_split_2 += off;
+            if (g_midi_three_octave_split_2<0)   g_midi_three_octave_split_2 = 0;
+            if (g_midi_three_octave_split_2>100) g_midi_three_octave_split_2 = 100;
+            break;
+        case sel_3_oct_bottom:
+            g_midi_three_octave_split_1 += off;
+            if (g_midi_three_octave_split_1<0)   g_midi_three_octave_split_1 = 0;
+            if (g_midi_three_octave_split_1>100) g_midi_three_octave_split_1 = 100;
+            break;
+        case sel_2_oct:
+            g_midi_two_octave_split += off;
+            if (g_midi_two_octave_split<0)   g_midi_two_octave_split = 0;
+            if (g_midi_two_octave_split>100) g_midi_two_octave_split = 100;
+            break;
+        default:
+            break;
+    }
+    return g_selected_config;
 }
 
-// dist is a fixed point with precission of 8 bits
-// offs is where on the line segment xy0-xy1 the point's normale hits,
-// range 0..65536 (but can extend, if normale hits line outside line segment)
-static int
-dist_lp(int x0, int y0, int x1, int y1, int xp, int yp, int *offs)
-{
-        int64_t r = (y1 - y0) * (y1 - y0) + (x1 - x0) * (x1 - x0);
-        int64_t q1 = (xp - x0) * (y1 - y0) - (yp - y0) * (x1 - x0);
-        int64_t q2 = (x1 - x0) * (xp - x0) + (y1 - y0) * (yp - y0);
+#endif
 
-        *offs = (int)((q2 << 16) / r);
-        return (int)( q1 * q1 * ((y0 - y1) * (y0 - y1) + (x1 - x0) * (x1 - x0)) * 256 / (r * r));
+void
+engine_init() {
 }
 
-static int
-dist_pl(LPoint * p, LLine * l, int *offs)
-{
-        return dist_lp(l->x0, l->y0, l->x1, l->y1, p->x, p->y, offs);
-}
 
 void
 engine_handle_point(LPoint * p, uint32_t monotime)
@@ -108,9 +149,6 @@ engine_handle_point(LPoint * p, uint32_t monotime)
         int y_viewfield, pitch_factor = 12;
         int dv, dt, speed, new_pitch;
 
-        // XXX should not be inverted here
-        p->x = 1024 - p->x;
-
 #ifndef NO_DISPLAY
         /* Pass to "render thread" */
         g_render_points[g_render_point_count] = *p;
@@ -120,27 +158,25 @@ engine_handle_point(LPoint * p, uint32_t monotime)
         /* See which line is closest */
         for (i = 0; i < g_string_count; ++i) {
                 int dist = dist_pl(p, &g_string_conf[i].line, &offs);
-                if ((dist < 256 * 10 * 10 ) && (dist < dist_max)) {
+
+                /* Avoid miss-fires, check if offset is in range -5% - +105% */
+                if ((dist < 512 * 10 * 10 ) && (dist < dist_max) && (offs<68812) && (offs>-3276)) {
                         dist_max = dist;
                         saite = i;
                 }
         }
 
-        /* Avoid miss-fires, check if offset is in range -5% - +105% */
-        if (offs>68812 || offs<-3276)
-                return;
-
         if (saite == -1)
                 return;
 
         s = g_string_conf + saite;
         g_selected_string = saite;
 
-        y_viewfield = 256 * (g_max_y - p->y) / (g_max_y - g_min_y);
+        y_viewfield = (100 * (p->y - g_min_y)) / (g_max_y - g_min_y);
         if (y_viewfield < 0)
                 y_viewfield = 0;
-        if (y_viewfield >= 256)
-                y_viewfield = 255;
+        if (y_viewfield >= 100)
+                y_viewfield = 100;
 
         // Determine octave, if configured
         switch (s->mode) {
@@ -183,7 +219,7 @@ engine_handle_point(LPoint * p, uint32_t monotime)
                         dv = abs(s->start_off - offs);
                         dt = monotime - s->first_time_seen;
                         if (!dt) ++dt;
-                        speed = 1000 * dv / dt; // in offs_prec per second
+                         speed = 1000 * dv / dt; // in offs_prec per second
                 }
                 s->last_off = offs;
                 break;
@@ -193,7 +229,7 @@ engine_handle_point(LPoint * p, uint32_t monotime)
                 if (s->modifier == pitch_bend_up)
                         new_pitch = (pitch_factor * (s->start_off - offs)) >> 16;
                 else if (s->modifier == pitch_bend_down)
-                        new_pitch = (pitch_factor * (s->start_off - offs)) >> 16;
+                        new_pitch = (pitch_factor * (offs - s->start_off)) >> 16;
                 else
                     break;
                 // avoid reporting same pitch bend over and over