Add radar sweep background pattern
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04759ec9df
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74
src/main.cpp
74
src/main.cpp
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@ -104,6 +104,23 @@ void render_drot_border(int8_t x_width, uint16_t text_color, uint16_t border_col
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}
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}
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}
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for (x = 0; x < x_width; x++) {
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is_color = 0;
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for (y = 0; y < ROT_SIZE; y++) {
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if (is_color) {
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if (src[x + (y * ROT_SIZE)] != text_color) {
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is_color = 0;
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src[x + (y * ROT_SIZE)] = border_color;
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}
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} else {
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if (src[x + (y * ROT_SIZE)] == text_color) {
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is_color = 1;
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src[x + (y * ROT_SIZE) - ROT_SIZE] = border_color;
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}
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}
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}
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}
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}
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void render_drot_rotate(int16_t x_width, int16_t rot, int16_t out_x, int16_t out_y)
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@ -147,7 +164,7 @@ void render_drot_rotate(int16_t x_width, int16_t rot, int16_t out_x, int16_t out
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}
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}
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void text_print_circular(const char *str, uint8_t text_size, int16_t spacing, uint16_t color, int16_t rot)
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void text_print_circular(const char *str, uint8_t text_size, int16_t spacing, uint16_t fcolor, uint16_t bcolor, int16_t rot)
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{
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uint8_t i;
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int16_t x_width;
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@ -165,14 +182,15 @@ void text_print_circular(const char *str, uint8_t text_size, int16_t spacing, ui
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y = sin1(rot);
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y = (y >> 9) + (y >> 11) + (y >> 12);
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x_width = render_drot_printchar(str, i, text_size, color); // render character
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render_drot_border(x_width, color, TEXT_BORDER_COLOR); // add border to character
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x_width = render_drot_printchar(str, i, text_size, fcolor); // render character
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render_drot_border(x_width, fcolor, bcolor); // add border to character
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render_drot_rotate(x_width, rot + 0x6000, x, y);
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rot -= spacing;
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}
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}
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int16_t rot = 0;
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int16_t trot = 0;
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int16_t brot = 0;
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#define HUE_MIN 0x2000-300
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#define HUE_MAX 0x2000+300
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@ -250,6 +268,39 @@ void bg_rainbow_circles(uint8_t saturation)
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}
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}
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void bg_radarsweep(int16_t rot, int16_t offset, uint8_t lines)
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{
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color_rgb rgb;
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uint16_t w;
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int16_t x, y;
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if (lines == 0xff) lines--;
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dout->fillScreen(BLACK);
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for (uint8_t i = 0; i < lines; i++) {
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// linear fade
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w = 256 * lines;
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w -= (256 * i);
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w /= lines;
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w &= 0xff;
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// todo: exponential fade or something
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// get rotational point
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x = cos1(rot);
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x = (x >> 8);
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y = sin1(rot);
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y = (y >> 8);
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hsv2rgb_8b((1536/3), 200, (i > 4) ? (w >> 1) : w, &rgb.r, &rgb.g, &rgb.b);
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dout->drawLine(x + 120, y + 120, 128, 128, dout->color565(rgb.r, rgb.g, rgb.b));
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rot -= offset;
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}
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}
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void texthue_180degree()
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{
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uint16_t hue;
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@ -272,19 +323,26 @@ void texthue_huesatcycle_circles()
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void loop()
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{
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uint16_t hue;
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color_rgb fc, bc;
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// rainbow circles program
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bg_rainbow_circles(200);
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// bg_rainbow_circles(200);
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// texthue_180degree();
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brot += 400;
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bg_radarsweep(brot, 25, 200);
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// small hue shift with larger saturation shifts circles
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// bg_huesatcycle_circles();
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// texthue_huesatcycle();
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// text rotation - black text, default border
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rot += 420 - 69;
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rgb.r = rgb.g = rgb.b = 0;
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text_print_circular(name, TEXT_MAX_SIZE, LETTER_SPACING, dout->color565(rgb.r, rgb.g, rgb.b), rot);
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trot += 420 - 69;
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fc.r = fc.g = fc.b = 240;
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bc.r = bc.g = bc.b = 32;
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text_print_circular(name, TEXT_MAX_SIZE, LETTER_SPACING,
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dout->color565(fc.r, fc.g, fc.b),
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dout->color565(bc.r, bc.g, bc.b),
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trot);
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dout->flush();
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}
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24
src/sin1.c
24
src/sin1.c
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@ -22,7 +22,7 @@
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* "5 bit" large table = 32 values. The mask: all bit belonging to the table
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* are 1, the all above 0.
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*/
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#define TABLE_BITS (5)
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#define TABLE_BITS (7)
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#define TABLE_SIZE (1<<TABLE_BITS)
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#define TABLE_MASK (TABLE_SIZE-1)
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@ -43,13 +43,25 @@
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* at 0deg, 11.25deg, 22.5deg etc. The values are from -1 to 1 in Q15.
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*/
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static int16_t sin90[TABLE_SIZE+1] = {
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0x0000,0x0647,0x0c8b,0x12c7,0x18f8,0x1f19,0x2527,0x2b1e,
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0x30fb,0x36b9,0x3c56,0x41cd,0x471c,0x4c3f,0x5133,0x55f4,
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0x5a81,0x5ed6,0x62f1,0x66ce,0x6a6c,0x6dc9,0x70e1,0x73b5,
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0x7640,0x7883,0x7a7c,0x7c29,0x7d89,0x7e9c,0x7f61,0x7fd7,
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0x0000,0x0192,0x0324,0x04b6,0x0647,0x07d9,0x096a,0x0afb,
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0x0c8b,0x0e1b,0x0fab,0x1139,0x12c7,0x1455,0x15e1,0x176d,
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0x18f8,0x1a82,0x1c0b,0x1d93,0x1f19,0x209f,0x2223,0x23a6,
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0x2527,0x26a7,0x2826,0x29a3,0x2b1e,0x2c98,0x2e10,0x2f86,
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0x30fb,0x326d,0x33de,0x354d,0x36b9,0x3824,0x398c,0x3af2,
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0x3c56,0x3db7,0x3f16,0x4073,0x41cd,0x4325,0x447a,0x45cc,
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0x471c,0x4869,0x49b3,0x4afa,0x4c3f,0x4d80,0x4ebf,0x4ffa,
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0x5133,0x5268,0x539a,0x54c9,0x55f4,0x571d,0x5842,0x5963,
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0x5a81,0x5b9c,0x5cb3,0x5dc6,0x5ed6,0x5fe2,0x60eb,0x61f0,
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0x62f1,0x63ee,0x64e7,0x65dd,0x66ce,0x67bc,0x68a5,0x698b,
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0x6a6c,0x6b4a,0x6c23,0x6cf8,0x6dc9,0x6e95,0x6f5e,0x7022,
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0x70e1,0x719d,0x7254,0x7306,0x73b5,0x745e,0x7503,0x75a4,
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0x7640,0x76d8,0x776b,0x77f9,0x7883,0x7908,0x7989,0x7a04,
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0x7a7c,0x7aee,0x7b5c,0x7bc4,0x7c29,0x7c88,0x7ce2,0x7d38,
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0x7d89,0x7dd5,0x7e1c,0x7e5e,0x7e9c,0x7ed4,0x7f08,0x7f37,
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0x7f61,0x7f86,0x7fa6,0x7fc1,0x7fd7,0x7fe8,0x7ff5,0x7ffc,
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0x7fff
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};
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/**
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* Sine calculation using interpolated table lookup.
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* Instead of radiants or degrees we use "turns" here. Means this
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