pikuma_graphics_from_scratch/src/main.c

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2024-04-12 04:27:14 +00:00
#include <stdint.h>
#include <stdbool.h>
#include <SDL2/SDL.h>
#include "display.h"
bool is_running = false;
void setup(void) {
// Allocate the required memory in bytes to hold color buffer
color_buffer = (uint32_t *) malloc(sizeof(uint32_t) * window_width * window_height);
// Creating the SDL Texture that is uses to display the color buffer
color_buffer_texture = SDL_CreateTexture(
renderer,
SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_STREAMING,
window_width,
window_height
);
}
void process_input(void) {
SDL_Event event;
SDL_PollEvent(&event);
switch (event.type) {
case SDL_QUIT:
is_running = false;
break;
case SDL_KEYDOWN:
if (event.key.keysym.sym == SDLK_ESCAPE) {
is_running = false;
}
break;
}
}
void update(void) {
}
void render(void) {
SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
SDL_RenderClear(renderer);
clear_color_buffer(0xFF000000);
draw_grid(10);
draw_rect(50, 50, 640, 480, 0xFFDD00DD);
render_color_buffer();
SDL_RenderPresent(renderer);
}
int main(void) {
is_running = initialize_window();
setup();
while (is_running) {
process_input();
update();
render();
}
destroy_window();
return 0;
}