inital structure for linear asset memory allocation

include/renderer.h

@@ -41,6 +41,56 @@ struct SDL_Handles
 	SDL_DisplayMode currentDisplayMode;
 };
 
+// --------------------------
+// Memory allocation WIP
+
+#define MAX_PATH_SIZE 256
+struct render_asset
+{
+	// header
+	size_t size;
+	uint name_len;
+	uint num_vertices;
+	uint num_indices;
+	render_asset* next;
+
+	// data
+	char* filepath;
+	glm::vec3* vertices;
+	uint* indices;
+	glm::vec3* texture_coords;
+	glm::mat4* model_transform;
+	// FIXME: also need to flatten diffuse_texture->pixels and track size of
+	// 	util_image structure, ie) another heaader + pixels
+	util_image* diffuse_texture;
+	// FIXME: node_animation has a pointer to a render_object. need to decouple
+	// 	that somehow
+	//node_animation* node_anim;
+};
+
+// NOTE: This is a linearly allocated block to contain all used mesh assets
+// 	Assets are loaded once, and then copied to video memory as needed.
+struct asset_memory_block
+{
+	uint asset_count;
+	size_t max_size;
+	render_asset* first;
+	render_asset* next_free;
+};
+
+#define INITIAL_ASSET_BLOCK_SIZE 256 * 1024 * 1024 // 256MB
+asset_memory_block*
+memInitBlock(size_t initial_size = INITIAL_ASSET_BLOCK_SIZE);
+
+render_asset*
+memAddAsset(const char* filepath);
+
+void
+memFreeBlock(asset_memory_block* block);
+
+// Memory allocation WIP
+// --------------------------
+
 struct render_state
 {
 	glm::vec2 viewport_dims;