From 9baff5661f2ba8b57e1b0794e490e239b7ef80ca Mon Sep 17 00:00:00 2001
From: omnisci3nce <17525998+omnisci3nce@users.noreply.github.com>
Date: Thu, 4 Apr 2024 22:53:13 +1100
Subject: loading animation data - step 1

---
 src/renderer/backends/backend_opengl.c |  4 +---
 src/renderer/render.c                  | 16 ++++++++++++++++
 src/renderer/render.h                  |  2 ++
 src/renderer/render_types.h            | 12 ++++++++++--
 4 files changed, 29 insertions(+), 5 deletions(-)

(limited to 'src/renderer')

diff --git a/src/renderer/backends/backend_opengl.c b/src/renderer/backends/backend_opengl.c
index 8df0933..b769002 100644
--- a/src/renderer/backends/backend_opengl.c
+++ b/src/renderer/backends/backend_opengl.c
@@ -42,9 +42,7 @@ bool gfx_backend_init(renderer *ren) {
   return true;
 }
 
-void gfx_backend_draw_frame(renderer* ren, camera* cam, mat4 model, texture* tex) {
-  
-}
+void gfx_backend_draw_frame(renderer *ren, camera *cam, mat4 model, texture *tex) {}
 
 void gfx_backend_shutdown(renderer *ren) {}
 
diff --git a/src/renderer/render.c b/src/renderer/render.c
index 2993225..2f5e553 100644
--- a/src/renderer/render.c
+++ b/src/renderer/render.c
@@ -1,3 +1,4 @@
+#include "mem.h"
 #define STB_IMAGE_IMPLEMENTATION
 #include <stb_image.h>
 
@@ -88,6 +89,21 @@ void default_material_init() {
   texture_data_upload(&DEFAULT_MATERIAL.specular_texture);
 }
 
+void model_destroy(model* model) {
+  arena_free_all(&model->animation_data_arena);
+  arena_free_storage(&model->animation_data_arena);
+  mesh_darray_free(model->meshes);
+  material_darray_free(model->materials);
+  if (model->is_uploaded) {
+    // Delete gpu buffer data
+    for (u32 i = 0; i < mesh_darray_len(model->meshes); i++) {
+      // FIXME: dont leak Opengl
+      glDeleteBuffers(1, &model->meshes->data[i].vbo);
+      glDeleteVertexArrays(1, &model->meshes->data[i].vao);
+    }
+  }
+}
+
 void draw_model(renderer* ren, camera* camera, model* model, transform tf, scene* scene) {
   // TRACE("Drawing model: %s", model->name);
   mat4 view;
diff --git a/src/renderer/render.h b/src/renderer/render.h
index b6dad00..f0118b6 100644
--- a/src/renderer/render.h
+++ b/src/renderer/render.h
@@ -35,5 +35,7 @@ void model_upload_meshes(renderer* ren, model* model);
 void draw_model(renderer* ren, camera* camera, model* model, transform tf, scene* scene);
 void draw_mesh(renderer* ren, mesh* mesh, transform tf, material* mat, mat4* view, mat4* proj);
 
+void model_destroy(model* model);
+
 // ---
 texture texture_data_load(const char* path, bool invert_y);  // #frontend
diff --git a/src/renderer/render_types.h b/src/renderer/render_types.h
index 80e1372..8d12183 100644
--- a/src/renderer/render_types.h
+++ b/src/renderer/render_types.h
@@ -7,6 +7,7 @@
  */
 #pragma once
 
+#include "animation.h"
 #include "darray.h"
 #include "maths.h"
 #include "maths_types.h"
@@ -52,8 +53,8 @@ typedef struct renderer {
 typedef struct texture {
   u32 texture_id;
   char name[MAX_TEXTURE_NAME_LEN];
-  void* image_data;
-  void* backend_data;
+  void *image_data;
+  void *backend_data;
   u32 width;
   u32 height;
   u8 channel_count;
@@ -84,6 +85,11 @@ KITC_DECL_TYPED_ARRAY(material)  // creates "material_darray"
 #define TYPED_MATERIAL_ARRAY
 #endif
 
+#ifndef TYPED_ANIMATION_CLIP_ARRAY
+KITC_DECL_TYPED_ARRAY(animation_clip)  // creates "material_darray"
+#define TYPED_ANIMATION_CLIP_ARRAY
+#endif
+
 // lights
 typedef struct point_light {
   vec3 position;
@@ -137,6 +143,8 @@ typedef struct model {
   mesh_darray *meshes;
   aabb_3d bbox;
   material_darray *materials;
+  animation_clip_darray *animations;
+  arena animation_data_arena;
   bool is_loaded;
   bool is_uploaded;
 } model;
-- 
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