Added experimental headless screen capture

minetest.conf

@@ -1 +1,8 @@
 name = me
+update_last_checked = 1670077920
+menu_last_game = minetest
+selected_world_path = /home/edwin/minetest/bin/../worlds/new
+server_announce = false
+enable_damage = true
+creative_mode = false
+mainmenu_last_selected_world = 1

src/client/render/core.cpp

@@ -44,6 +44,17 @@ void RenderingCore::initialize()
  createPipeline();
 }
 
+void RenderingCore::savetex(video::ITexture *texture, std::string filename, video::IVideoDriver* videoDriver) {
+ video::IImage* image = videoDriver->createImageFromData(
+ texture->getColorFormat(),
+ texture->getSize(),
+ texture->lock(irr::video::E_TEXTURE_LOCK_MODE::ETLM_READ_WRITE),
+ true //copy mem
+ );
+ videoDriver->writeImageToFile(image, "temp.png");
+ texture->unlock();
+}
+
 void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
  bool _draw_wield_tool, bool _draw_crosshair)
 {
@@ -56,8 +67,18 @@ void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_min
  context.show_hud = _show_hud;
  context.show_minimap = _show_minimap;
 
+ TextureBuffer *buffer = pipeline->createOwned<TextureBuffer>();
+ buffer->setTexture(0, v2f(1.0f, 1.0f), "idk_lol", video::ECF_A8R8G8B8);
+ auto tex = new TextureBufferOutput(buffer, 0);
+ pipeline->setRenderTarget(tex);
+
+ for (auto &step: pipeline->m_pipeline)
+ step->setRenderTarget(tex);
+
  pipeline->reset(context);
  pipeline->run(context);
+
+ savetex(tex->buffer->getTexture(0),"mu",device->getVideoDriver());
 }
 
 v2u32 RenderingCore::getVirtualSize() const

src/client/render/core.h

@@ -55,6 +55,9 @@ class RenderingCore
  RenderingCore &operator=(const RenderingCore &) = delete;
  RenderingCore &operator=(RenderingCore &&) = delete;
 
+
+ void savetex(video::ITexture *texture, std::string filename, video::IVideoDriver* videoDriver);
+
  void initialize();
  void draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
  bool _draw_wield_tool, bool _draw_crosshair);

src/client/render/pipeline.h

@@ -181,10 +181,11 @@ class TextureBufferOutput : public RenderTarget
  TextureBufferOutput(TextureBuffer *buffer, const std::vector<u8> &texture_map, u8 depth_stencil);
  virtual ~TextureBufferOutput() override;
  void activate(PipelineContext &context) override;
+ TextureBuffer *buffer;
+
 private:
  static const u8 NO_DEPTH_TEXTURE = 255;
 
- TextureBuffer *buffer;
  std::vector<u8> texture_map;
  u8 depth_stencil { NO_DEPTH_TEXTURE };
  video::IRenderTarget* render_target { nullptr };
@@ -406,8 +407,9 @@ class RenderPipeline : public RenderStep
 
  virtual void setRenderSource(RenderSource *source) override;
  virtual void setRenderTarget(RenderTarget *target) override;
-private:
  std::vector<RenderStep *> m_pipeline;
+private:
+
  std::vector< std::unique_ptr<RenderPipelineObject> > m_objects;
  DynamicSource m_input;
  DynamicTarget m_output;