New plugin architecture.

1 files changed, 94 insertions, 0 deletions

diff --git a/gltfview/src/plugins/texture_view.c b/gltfview/src/plugins/texture_view.c
new file mode 100644
index 0000000..f2c650f
--- /dev/null
+++ b/gltfview/src/plugins/texture_view.c
@@ -0,0 +1,94 @@
+#include "texture_view.h"
+
+#include <gfx/render_backend.h>
+#include <gfx/util/geometry.h>
+#include <gfx/util/shader.h>
+#include <gfx/util/texture.h>
+
+#include <math/camera.h>
+
+#include <assert.h>
+#include <stdlib.h>
+
+// Default texture to load if no texture is provided.
+static const char* CLOUDS1_TEXTURE = "/assets/skybox/clouds1/clouds1_west.bmp";
+
+State* init(Game* game) {
+  assert(game);
+
+  State* state = calloc(1, sizeof(State));
+  return state;
+}
+
+bool boot(State* state, Game* game) {
+  assert(state);
+  assert(game);
+
+  // Usage: [texture file]
+  const char* texture_file = game->argc > 1 ? game->argv[1] : CLOUDS1_TEXTURE;
+
+  RenderBackend* render_backend = gfx_get_render_backend(game->gfx);
+
+  Texture* texture = gfx_load_texture(
+      render_backend, &(LoadTextureCmd){
+                          .origin                = TextureFromFile,
+                          .type                  = LoadTexture,
+                          .filtering             = LinearFiltering,
+                          .mipmaps               = false,
+                          .data.texture.filepath = mstring_make(texture_file)});
+
+  Camera* camera = gfx_get_camera_camera(game->camera);
+  spatial3_set_position(&camera->spatial, vec3_make(0, 0, 1));
+
+  ShaderProgram* shader = gfx_make_view_texture_shader(render_backend);
+  if (!shader) {
+    return false;
+  }
+
+  Geometry* geometry = gfx_make_quad_11(render_backend);
+  if (!geometry) {
+    return false;
+  }
+
+  MaterialDesc material_desc = (MaterialDesc){0};
+  material_desc.uniforms[0]  = (ShaderUniform){
+       .type          = UniformTexture,
+       .value.texture = texture,
+       .name          = sstring_make("Texture")};
+  material_desc.num_uniforms = 1;
+  Material* material         = gfx_make_material(&material_desc);
+  if (!material) {
+    return false;
+  }
+
+  MeshDesc mesh_desc = (MeshDesc){0};
+  mesh_desc.geometry = geometry;
+  mesh_desc.material = material;
+  mesh_desc.shader   = shader;
+  Mesh* mesh         = gfx_make_mesh(&mesh_desc);
+  if (!mesh) {
+    return false;
+  }
+
+  SceneObject* object = gfx_make_object();
+  if (!object) {
+    return false;
+  }
+  gfx_add_object_mesh(object, mesh);
+
+  SceneNode* node = gfx_make_object_node(object);
+  SceneNode* root = gfx_get_scene_root(game->scene);
+  gfx_set_node_parent(node, root);
+
+  return true;
+}
+
+void update(State* state, Game* game, double t, double dt) {
+  assert(state);
+  assert(game);
+}
+
+void render(State* state, const Game* game) {
+  assert(state);
+  assert(game);
+}