Add image

src/image.c

@@ -0,0 +1,93 @@
+#include "image.h"
+#include "aliases/aliases.h"
+#include "window.h"
+#include <stdbool.h>
+#include <string.h>
+
+#define STREQ(S1, S2) (strcmp(S1, S2) == 0)
+
+enum file_formats {
+  EXT_PNG,
+  EXT_PNG_CAPS,
+  EXT_JPG,
+  EXT_JPG_CAPS,
+  EXT_JPEG,
+  EXT_JPEG_CAPS,
+  EXT_TIF,
+  EXT_TIF_CAPS,
+  EXT_TIFF,
+  EXT_TIFF_CAPS,
+
+  COUNT_EXT,
+};
+
+INTERNAL const char *extensions[COUNT_EXT] = {
+    // clang-format off
+		[EXT_PNG] = ".png",
+		[EXT_PNG_CAPS] = ".PNG",
+		[EXT_JPG] = ".jpg",
+		[EXT_JPG_CAPS] = ".JPG",
+		[EXT_JPEG] = ".jpeg",
+		[EXT_JPEG_CAPS] = ".JPEG",
+		[EXT_TIF] = ".tif",
+		[EXT_TIF_CAPS] = ".TIF",
+		[EXT_TIFF] = ".tiff",
+		[EXT_TIFF_CAPS] = ".TIFF",
+    // clang-format on
+};
+
+bool valid_image(const char *path) {
+  for (u64 i = 0; i < COUNT_EXT; ++i) {
+    char *ext = strrchr(path, '.');
+    if (!ext) {
+      return false;
+    }
+
+    if (STREQ(ext, extensions[i])) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+bool load_image(const window_t *wnd, image_t *img, const char *path) {
+  if (!img || !path) {
+    return false;
+  }
+
+  img->filepath.length = strlen(path);
+  if (img->filepath.length == 0) {
+    return false;
+  }
+
+  if (!valid_image(path)) {
+    return false;
+  }
+
+  u64 length = strlen(img->filepath.path);
+  if (length > 0) {
+    memset(img->filepath.path, 0, length);
+  }
+
+  strncpy(img->filepath.path, path, img->filepath.length);
+
+  if (img->texture) {
+    unload_texture(img->texture);
+    img->texture = NULL;
+  }
+
+  img->texture = load_texture(wnd, path);
+  if (!(img->texture)) {
+    return false;
+  }
+
+  i32 w;
+  i32 h;
+  get_texture_size(img->texture, &w, &h);
+
+  img->width = w;
+  img->height = h;
+
+  return true;
+}