select_instance.cc

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "DRW_render.hh"
 
#include "GPU_capabilities.hh"
 
#include "select_engine.hh"
 
#include "../overlay/overlay_next_instance.hh"
#include "select_instance.hh"
 
using namespace blender::draw;
 
/* -------------------------------------------------------------------- */
using Instance = overlay::Instance;
 
struct SELECT_NextData {
  void *engine_type;
  DRWViewportEmptyList *fbl;
  DRWViewportEmptyList *txl;
  DRWViewportEmptyList *psl;
  DRWViewportEmptyList *stl;
 
  Instance *instance;
};
 
static void SELECT_next_engine_init(void *vedata)
{
  OVERLAY_Data *ved = reinterpret_cast<OVERLAY_Data *>(vedata);
 
  if (ved->instance == nullptr) {
    const DRWContextState *draw_ctx = DRW_context_state_get();
    const RegionView3D *rv3d = draw_ctx->rv3d;
    const View3D *v3d = draw_ctx->v3d;
    const bool clipping_enabled = RV3D_CLIPPING_ENABLED(v3d, rv3d);
 
    ved->instance = new Instance(select::SelectionType::ENABLED, clipping_enabled);
  }
 
  reinterpret_cast<Instance *>(ved->instance)->init();
}
 
static void SELECT_next_cache_init(void *vedata)
{
  reinterpret_cast<Instance *>(reinterpret_cast<OVERLAY_Data *>(vedata)->instance)->begin_sync();
}
 
static void SELECT_next_cache_populate(void *vedata, Object *object)
{
  ObjectRef ref;
  ref.object = object;
  ref.dupli_object = DRW_object_get_dupli(object);
  ref.dupli_parent = DRW_object_get_dupli_parent(object);
 
  reinterpret_cast<Instance *>(reinterpret_cast<OVERLAY_Data *>(vedata)->instance)
      ->object_sync(ref, *DRW_manager_get());
}
 
static void SELECT_next_cache_finish(void *vedata)
{
  reinterpret_cast<Instance *>(reinterpret_cast<OVERLAY_Data *>(vedata)->instance)->end_sync();
}
 
static void SELECT_next_draw_scene(void *vedata)
{
  reinterpret_cast<Instance *>(reinterpret_cast<OVERLAY_Data *>(vedata)->instance)
      ->draw(*DRW_manager_get());
}
 
static void SELECT_next_instance_free(void *instance_)
{
  Instance *instance = (Instance *)instance_;
  if (instance != nullptr) {
    delete instance;
  }
}
 
static const DrawEngineDataSize SELECT_next_data_size = DRW_VIEWPORT_DATA_SIZE(SELECT_NextData);
 
DrawEngineType draw_engine_select_next_type = {
    /*next*/ nullptr,
    /*prev*/ nullptr,
    /*idname*/ N_("Select-Next"),
    /*vedata_size*/ &SELECT_next_data_size,
    /*engine_init*/ &SELECT_next_engine_init,
    /*engine_free*/ nullptr,
    /*instance_free*/ &SELECT_next_instance_free,
    /*cache_init*/ &SELECT_next_cache_init,
    /*cache_populate*/ &SELECT_next_cache_populate,
    /*cache_finish*/ &SELECT_next_cache_finish,
    /*draw_scene*/ &SELECT_next_draw_scene,
    /*view_update*/ nullptr,
    /*id_update*/ nullptr,
    /*render_to_image*/ nullptr,
    /*store_metadata*/ nullptr,
};