Test loading and rendering the same texture in 2 different methods

main.c

@@ -0,0 +1,122 @@
+#include "aliases.h"
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_events.h>
+#include <SDL2/SDL_image.h>
+#include <SDL2/SDL_rect.h>
+#include <SDL2/SDL_render.h>
+#include <SDL2/SDL_rwops.h>
+#include <SDL2/SDL_video.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define WINDOW_WIDTH 800
+#define WINDOW_HEIGHT 600
+
+#define IMAGE_WIDTH 300
+#define IMAGE_HEIGHT 300
+
+typedef struct {
+  u64 size;
+  u8 *buf;
+} img_t;
+
+img_t load_image(const char *filepath);
+SDL_Texture *load_texture(SDL_Renderer *renderer, const char *filepath);
+
+int main(void) {
+  SDL_Init(SDL_INIT_EVERYTHING);
+  IMG_Init(IMG_INIT_PNG);
+
+  SDL_Window *window =
+      SDL_CreateWindow("Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
+                       WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN);
+
+  SDL_Renderer *renderer = SDL_CreateRenderer(
+      window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+
+  bool running = true;
+
+  SDL_Event event = {0};
+
+  SDL_Texture *texture1 = IMG_LoadTexture(renderer, "ball.png");
+  SDL_Texture *texture2 = load_texture(renderer, "ball.png");
+
+  SDL_Rect dest1 = {
+      .x = 50,
+      .y = 150,
+      .w = IMAGE_WIDTH,
+      .h = IMAGE_HEIGHT,
+  };
+  SDL_Rect dest2 = {
+      .x = 450,
+      .y = 150,
+      .w = IMAGE_WIDTH,
+      .h = IMAGE_HEIGHT,
+  };
+
+  while (running) {
+    while (SDL_PollEvent(&event)) {
+      switch (event.type) {
+      case SDL_QUIT:
+        running = false;
+        break;
+      }
+    }
+
+    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
+
+    SDL_RenderClear(renderer);
+
+    SDL_RenderCopy(renderer, texture1, NULL, &dest1);
+    SDL_RenderCopy(renderer, texture2, NULL, &dest2);
+
+    SDL_RenderPresent(renderer);
+  }
+
+  SDL_DestroyRenderer(renderer);
+
+  SDL_DestroyWindow(window);
+
+  IMG_Quit();
+  SDL_Quit();
+
+  return 0;
+}
+
+img_t load_image(const char *filepath) {
+  FILE *fp = fopen(filepath, "rb");
+  if (!fp) {
+    return (img_t){0};
+  }
+
+  img_t img = {0};
+
+  fseek(fp, 0, SEEK_END);
+
+  img.size = ftell(fp);
+
+  fseek(fp, 0, SEEK_SET);
+
+  img.buf = (u8 *)malloc(img.size);
+
+  fread((void *)(img.buf), img.size, 1, fp);
+
+  fclose(fp);
+
+  return img;
+}
+
+SDL_Texture *load_texture(SDL_Renderer *renderer, const char *filepath) {
+  img_t img = load_image("ball.png");
+  if (!(img.buf)) {
+    return NULL;
+  }
+
+  SDL_RWops *ctx = SDL_RWFromMem(img.buf, img.size);
+  SDL_Texture *texture = IMG_LoadTexture_RW(renderer, ctx, 1);
+
+  free(img.buf);
+
+  return texture;
+}