1 files changed, 70 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_instance.hh b/source/blender/draw/engines/overlay/overlay_instance.hh
new file mode 100644
index 00000000000..85a73c71900
--- /dev/null
+++ b/source/blender/draw/engines/overlay/overlay_instance.hh
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup overlay
+ */
+
+#pragma once
+
+#include "draw_manager.hh"
+
+#include "overlay_grid.hh"
+
+namespace blender::draw::overlay {
+
+class ShaderCache {
+  Map<StringRefNull, std::array<GPUShader *, 2>> cache;
+
+  int clipping_enabled = 0;
+};
+
+class SceneResources {
+  ShaderCache shaders;
+
+  // UniformBuffer<ThemeColorData> theme_colors;
+  // Texture color_ramp = {"color_ramp"};
+
+  void weight_ramp_init()
+  {
+    /* Weight Painting color ramp texture */
+    // bool user_weight_ramp = (U.flag & USER_CUSTOM_RANGE) != 0;
+
+    // if (weight_ramp_custom != user_weight_ramp ||
+    //     (user_weight_ramp && memcmp(&weight_ramp_copy, &U.coba_weight, sizeof(ColorBand)) != 0))
+    //     {
+    //   DRW_TEXTURE_FREE_SAFE(G_draw.weight_ramp);
+    // }
+
+    // if (G_draw.weight_ramp == NULL) {
+    //   weight_ramp_custom = user_weight_ramp;
+    //   memcpy(&weight_ramp_copy, &U.coba_weight, sizeof(ColorBand));
+
+    //   G_draw.weight_ramp = DRW_create_weight_colorramp_texture();
+    // }
+  }
+};
+
+class Instance {
+ public:
+  ShaderCache shaders;
+
+  /* WORKAROUND: Legacy. Move to grid pass. */
+  GPUUniformBuf *grid_ubo = nullptr;
+
+  Framebuffer overlay_fb = {"overlay_fb"};
+
+  Grid grid;
+
+  ~Instance()
+  {
+    DRW_UBO_FREE_SAFE(grid_ubo);
+  }
+
+  void init();
+  void begin_sync();
+  void object_sync(ObjectRef &ob_ref);
+  void end_sync();
+  void draw(Manager &manager);
+};
+
+}  // namespace blender::draw::overlay