mirror of
https://github.com/stasenso/rp_pico_display_engine.git
synced 2026-06-26 21:32:41 +03:00
Besier curve added
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+1
-1
@@ -7,7 +7,7 @@ set(CMAKE_CXX_STANDARD 17)
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pico_sdk_init()
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add_executable(${PROJECT_NAME} main.c Thread.c)
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add_executable(${PROJECT_NAME} main.c Thread.c DrawBezier.c)
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target_link_libraries(${PROJECT_NAME}
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pico_stdlib
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@@ -0,0 +1,42 @@
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#include "DrawBezier.h"
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// Установка пикселя в буфере (с проверкой границ)
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void set_pixel(int x, int y, uint16_t color) {
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if (x >= 0 && x < WIDTH && y >= 0 && y < HEIGHT) {
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frame_buffer[y * WIDTH + x] = color;
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}
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}
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// Функция для вычисления базисного полинома Бернштейна
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float bernstein(int i, int n, float t) {
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// Вычисление биномиального коэффициента C(n, i)
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float binomial = 1.0f;
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for (int j = 0; j < i; j++) {
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binomial *= (n - j) / (float)(j + 1);
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}
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return binomial * powf(t, i) * powf(1.0f - t, n - i);
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}
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// Рисование кривой Безье
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void draw_bezier(const int *points_x, const int *points_y, size_t num_points, uint16_t color) {
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if (num_points < 2) {
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return; // Кривая требует минимум 2 точки
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}
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const int steps = 1000; // Количество шагов для построения кривой
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for (int step = 0; step <= steps; step++) {
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float t = step / (float)steps;
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float x = 0.0f;
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float y = 0.0f;
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// Вычисление координат точки на кривой
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for (size_t i = 0; i < num_points; i++) {
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float b = bernstein(i, num_points - 1, t);
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x += b * points_x[i];
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y += b * points_y[i];
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}
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// Установка пикселя на экране
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set_pixel((int)(x + 0.5f), (int)(y + 0.5f), color);
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}
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}
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@@ -0,0 +1,9 @@
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include <math.h>
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#include "Thread.h"
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void set_pixel(int x, int y, uint16_t color);
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float bernstein(int i, int n, float t);
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void draw_bezier(const int *points_x, const int *points_y, size_t num_points, uint16_t color);
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@@ -2,6 +2,7 @@
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#include "Thread.h"
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#include "pico/multicore.h"
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#include "pico/stdlib.h"
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#include "DrawBezier.h"
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int main() {
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uint16_t red = 0;
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@@ -9,90 +10,21 @@ int main() {
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uint16_t blue = 0;
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uint16_t summcolor=0;
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uint32_t data;
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int points_x[] = {0,50, 150, 250, 300,320};
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int points_y[] = {0,200, 50, 50, 200,240};
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size_t num_points = sizeof(points_x) / sizeof(points_x[0]);
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uint16_t color = reverse(0b0000011111100000);
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stdio_init_all();
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multicore_launch_core1(coreEntry); //Запускаю в ядре 1 процесс вывода на экран
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while (red<32) //Red ++
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{
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data = multicore_fifo_pop_blocking();
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summcolor=summcolor & 0b0000011111111111 | red << 11;
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fillBufer(frame_buffer,reverse(summcolor));//;
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fillBufer(frame_buffer,reverse(0x4A69));//
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draw_bezier(points_x, points_y, num_points, color);
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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red+=1;
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sleep_ms(40);
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}
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sleep_ms (1000);
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while (green<64) //Red+Green
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{
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data = multicore_fifo_pop_blocking();
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summcolor=summcolor & 0b1111100000011111 | green << 5;
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fillBufer(frame_buffer,reverse(summcolor)); //
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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green+=1;
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sleep_ms(20);
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}
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sleep_ms (1000);
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red=32;
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while (red!=0) //Green++
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{
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red-=1;
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data = multicore_fifo_pop_blocking();
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summcolor=(summcolor & 0b0000011111111111) | (red << 11);
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fillBufer(frame_buffer,reverse(summcolor));//;
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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sleep_ms(20);
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}
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sleep_ms (1000);
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while (blue<32) //Green+blue
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{
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data = multicore_fifo_pop_blocking();
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summcolor=summcolor & 0b1111111111100000 | blue;
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fillBufer(frame_buffer,reverse(summcolor)); //
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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blue+=1;
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sleep_ms(40);
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}
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sleep_ms (1000);
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green=64;
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while (green!=0) //blue++
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{
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green-=1;
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data = multicore_fifo_pop_blocking();
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summcolor=summcolor & 0b1111100000011111 | green << 5;
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fillBufer(frame_buffer,reverse(summcolor));//;
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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sleep_ms(20);
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}
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sleep_ms (1000);
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red=0;
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while (red<32) //Red+Blue
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{
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data = multicore_fifo_pop_blocking();
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summcolor=summcolor & 0b0000011111111111 | red << 11;
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fillBufer(frame_buffer,reverse(summcolor));//;
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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red+=1;
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sleep_ms(40);
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}
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sleep_ms (1000);
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green=0;
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while (green<64) //Red+Green
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{
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data = multicore_fifo_pop_blocking();
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summcolor=summcolor & 0b1111100000011111 | green << 5;
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fillBufer(frame_buffer,reverse(summcolor)); //
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multicore_fifo_push_blocking(0); //Экран 0 нарисован
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green+=1;
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sleep_ms(20);
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}
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while (1) {
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tight_loop_contents();
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