autocommit 2022-01-28 19:46:23 CET

src/render/renderer/framebuffer.rs

@@ -0,0 +1,40 @@
+use crate::render::gl::frame_buffer::GlFrameBuffer;
+use crate::render::gl::sys::{
+    glBindFramebuffer, glClear, glClearColor, glViewport, GL_COLOR_BUFFER_BIT, GL_FRAMEBUFFER,
+};
+use crate::render::renderer::context::RenderContext;
+use crate::render::renderer::renderer::Renderer;
+use crate::tree::Node;
+use std::ptr;
+use std::rc::Rc;
+
+pub struct Framebuffer {
+    pub(super) ctx: Rc<RenderContext>,
+    pub(super) gl: GlFrameBuffer,
+}
+
+impl Framebuffer {
+    pub fn render(&self, node: &dyn Node) {
+        let _ = self.ctx.ctx.with_current(|| {
+            if let Some(rd) = &self.ctx.renderdoc {
+                rd.borrow_mut()
+                    .start_frame_capture(ptr::null(), ptr::null());
+            }
+            unsafe {
+                glBindFramebuffer(GL_FRAMEBUFFER, self.gl.fbo);
+                glViewport(0, 0, self.gl.width, self.gl.height);
+                glClearColor(0.0, 0.0, 0.0, 1.0);
+                glClear(GL_COLOR_BUFFER_BIT);
+            }
+            let mut renderer = Renderer {
+                renderer: &self.ctx,
+                image: &self.gl,
+            };
+            node.render(&mut renderer, 0, 0);
+            if let Some(rd) = &self.ctx.renderdoc {
+                rd.borrow_mut().end_frame_capture(ptr::null(), ptr::null());
+            }
+            Ok(())
+        });
+    }
+}