Add basic loader for gltf

Added loading of avocado. Something is still wrong though,
becaus I cannot see the seed. But basic functionality is there.

utilities/cgltf.h

@@ -4382,7 +4382,7 @@ static int cgltf_parse_json_diffuse_transmission(cgltf_options* options, jsmntok
 	// Defaults
 	cgltf_fill_float_array(out_diff_transmission->diffuse_transmission_color_factor, 3, 1.0f);
 	out_diff_transmission->diffuse_transmission_factor = 0.f;
-	
+
 	for (int j = 0; j < size; ++j)
 	{
 		CGLTF_CHECK_KEY(tokens[i]);

utilities/commons.h

@@ -28,7 +28,7 @@
         exit(1);                                                                    \
     }
 
-#define rse_free(ptr) free(ptr);
+#define rse_free(ptr) if (ptr != NULL) free(ptr);
 
 #define rse_memcpy(dst, src, size) memcpy(dst, src, size);
 #define rse_memset(ptr, value, size) memset(ptr, value, size);

utilities/file_utils.h

@@ -3,6 +3,7 @@
 
 #include <stddef.h>
 #include "commons.h"
+#include "cgltf.h"
 
 #define MAX_PATH_LENGTH (4096U)
 
@@ -22,7 +23,7 @@ rse_err_t file_load_pixels(const char* file_name, unsigned char* buffer, size_t*
 
 rse_err_t file_append_full_path(char* file_path, size_t max_buffer_size);
 
-rse_err_t file_json_parser(const char* file_name);
+rse_err_t file_load_gltf(const char* file_name, cgltf_data** data);
 
 #endif /* FILE_UTILS_H */
 

utilities/src/file_utils.c

@@ -247,24 +247,22 @@ rse_err_t file_write(const char* file_name, size_t bytes_count, char* buffer)
     return ret;
 }
 
-rse_err_t file_load_gltf(const char* file_name)
+rse_err_t file_load_gltf(const char* file_name, cgltf_data** data)
 {
     char real_path[MAX_PATH_LENGTH] = {0};
     rse_err_t ret = RSE_ERROR_NO_ERROR;
     cgltf_options options = {0};
-    cgltf_data* data = NULL;
 
     strncpy(real_path, file_name, MAX_PATH_LENGTH);
     if ((ret = file_append_full_path(real_path, MAX_PATH_LENGTH)) != RSE_ERROR_NO_ERROR) {
         return ret;
     }
 
-    if (cgltf_parse_file(&options, real_path, &data) != cgltf_result_success) {
+    if (cgltf_parse_file(&options, real_path, data) != cgltf_result_success) {
         SDL_LogCritical(SDL_LOG_CATEGORY_APPLICATION, "Failed to parse GLTF data");
 
         return RSE_ERROR_INTERNAL_ERROR;
     }
 
-    cgltf_free(data);
     return ret;
 }