fix uninitialized values in shader json parsing

Author: jsoulier

shader.c

@@ -54,15 +54,16 @@ SDL_GPUShader* load_shader(SDL_GPUDevice* device, const char* name)
         return NULL;
     }
     jsmn_parser json_parser;
-    jsmntok_t json_tokens[9];
+    jsmntok_t json_tokens[128] = {0};
     jsmn_init(&json_parser);
-    if (jsmn_parse(&json_parser, shader_json_data, shader_json_size, json_tokens, 9) <= 0)
+    int tokens = jsmn_parse(&json_parser, shader_json_data, shader_json_size, json_tokens, 128);
+    if (tokens <= 0)
     {
         SDL_Log("Failed to parse json: %s", shader_json_path);
         return NULL;
     }
     SDL_GPUShaderCreateInfo info = {0};
-    for (int i = 1; i < 9; i += 2)
+    for (int i = 1; i < tokens; i += 2)
     {
         if (json_tokens[i].type != JSMN_STRING)
         {
@@ -164,15 +165,16 @@ SDL_GPUComputePipeline* load_compute_pipeline(SDL_GPUDevice* device, const char*
         return NULL;
     }
     jsmn_parser json_parser;
-    jsmntok_t json_tokens[19];
+    jsmntok_t json_tokens[128] = {0};
     jsmn_init(&json_parser);
-    if (jsmn_parse(&json_parser, shader_json_data, shader_json_size, json_tokens, 19) <= 0)
+    int tokens = jsmn_parse(&json_parser, shader_json_data, shader_json_size, json_tokens, 128);
+    if (tokens <= 0)
     {
         SDL_Log("Failed to parse json: %s", shader_json_path);
         return NULL;
     }
     SDL_GPUComputePipelineCreateInfo info = {0};
-    for (int i = 1; i < 19; i += 2)
+    for (int i = 1; i < tokens; i += 2)
     {
         if (json_tokens[i].type != JSMN_STRING)
         {