112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
#include "String.h"
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#include "color.h"
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#include "font_pack.h"
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#include "io.h"
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#include "renderer.h"
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// Simple ~1-second delay (~80 MHz CPU)
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static void delay_1s(void) {
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volatile unsigned long count = 80000000;
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while (count--)
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__asm__ volatile("nop");
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}
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void delay_seconds(unsigned int seconds) {
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for (unsigned int i = 0; i < seconds; i++) {
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delay_1s();
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}
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}
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// Draw label text at (x, y)
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static void draw_label(Renderer *renderer, const char *label, int x, int y) {
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RenderText text = {
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.base = {.x = x, .y = y, .color = COLOR_WHITE},
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.text = label,
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.font = &basic_font_pack,
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};
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renderer->draw_text(renderer, &text);
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}
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int kernel_main(void) {
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uart_io.puts("Initializing renderer...\n");
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Renderer renderer;
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if (!renderer_init(&renderer)) {
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uart_io.puts("Failed to allocate framebuffer.\n");
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while (1)
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;
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}
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uart_io.puts("Framebuffer allocated.\n");
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while (1) {
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// Clear screen
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renderer.clear_screen(&renderer, COLOR_BLACK);
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// ----- Left Column: Rectangles, Lines, Circles -----
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int left_x = 20;
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// Rectangles
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int rect_y = 20;
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draw_label(&renderer, "Rectangles", left_x, rect_y);
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rect_y += 20; // padding
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RenderObject rect1 = {left_x, rect_y, 100, 50, COLOR_GREEN};
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RenderObject rect2 = {left_x + 120, rect_y, 50, 100, COLOR_BLUE};
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renderer.draw_rect(&renderer, &rect1);
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renderer.draw_rect(&renderer, &rect2);
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// Lines
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int lines_y = rect_y + 120; // spacing after rectangles
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draw_label(&renderer, "Lines", left_x, lines_y);
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lines_y += 20;
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renderer.draw_line(&renderer, left_x, lines_y, left_x + 100, lines_y + 40,
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COLOR_WHITE);
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renderer.draw_line(&renderer, left_x + 100, lines_y, left_x, lines_y + 40,
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COLOR_YELLOW);
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// Circles
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int circle_y = lines_y + 60;
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draw_label(&renderer, "Circles", left_x, circle_y);
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circle_y += 20;
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renderer.draw_circle(&renderer, left_x + 50, circle_y + 20, 30,
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COLOR_WHITE);
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renderer.fill_circle(&renderer, left_x + 130, circle_y + 20, 20,
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COLOR_BLUE);
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// Text
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int text_y = circle_y + 60;
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draw_label(&renderer, "Text Test", left_x, text_y);
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text_y += 20;
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RenderText text = {
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.base = {.x = left_x, .y = text_y, .color = COLOR_CYAN},
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.text = "HELLO RENDERER!",
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.font = &basic_font_pack,
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};
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renderer.draw_text(&renderer, &text);
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// ----- Right Column: Triangles, Diagonal Lines -----
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int right_x = 220;
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// Triangles
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int tri_y = 20;
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draw_label(&renderer, "Triangles", right_x, tri_y);
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tri_y += 20;
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renderer.draw_triangle(&renderer, right_x, tri_y + 20, right_x + 50,
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tri_y + 70, right_x - 50, tri_y + 70, COLOR_WHITE);
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renderer.fill_triangle(&renderer, right_x + 80, tri_y + 20, right_x + 130,
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tri_y + 70, right_x + 30, tri_y + 70, COLOR_GREEN);
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// Diagonal Lines
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int diag_y = tri_y + 100;
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draw_label(&renderer, "Diagonal Lines", right_x, diag_y);
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diag_y += 20;
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renderer.draw_line(&renderer, right_x, diag_y, right_x + 160, diag_y + 120,
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COLOR_RED);
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renderer.draw_line(&renderer, right_x + 160, diag_y, right_x, diag_y + 120,
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COLOR_YELLOW);
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// Pause 5 seconds to view
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delay_seconds(5);
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}
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}
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