fl_compositor_opengl.h File Reference

#include <gtk/gtk.h>
#include "flutter/shell/platform/embedder/embedder.h"
#include "flutter/shell/platform/linux/fl_compositor.h"
#include "flutter/shell/platform/linux/public/flutter_linux/fl_engine.h"

Go to the source code of this file.

Functions
G_BEGIN_DECLS	G_DECLARE_FINAL_TYPE (FlCompositorOpenGL, fl_compositor_opengl, FL, COMPOSITOR_OPENGL, FlCompositor) FlCompositorOpenGL *fl_compositor_opengl_new(FlEngine *engine)
void	fl_compositor_opengl_setup (FlCompositorOpenGL *compositor)
void	fl_compositor_opengl_render (FlCompositorOpenGL *compositor, FlutterViewId view_id, int width, int height, const GdkRGBA *background_color)
void	fl_compositor_opengl_cleanup (FlCompositorOpenGL *compositor)

Function Documentation

fl_compositor_opengl_cleanup()

void fl_compositor_opengl_cleanup

(

FlCompositorOpenGL *

compositor

)

fl_compositor_opengl_cleanup: @compositor: an #FlCompositorOpenGL.

Removes OpenGL resources used for rendering. Requires an active context.

Definition at line 617 of file fl_compositor_opengl.cc.

                                                            {
  g_return_if_fail(FL_IS_COMPOSITOR_OPENGL(self));
 
  if (self->program != 0) {
    glDeleteProgram(self->program);
  }
}

Referenced by unrealize_cb().

fl_compositor_opengl_render()

void fl_compositor_opengl_render	(	FlCompositorOpenGL *	compositor,
		FlutterViewId	view_id,
		int	width,
		int	height,
		const GdkRGBA *	background_color
	)

fl_compositor_opengl_render: @compositor: an #FlCompositorOpenGL. @view_id: view to render. @width: width of the window in pixels. @height: height of the window in pixels. @background_color: color to use for background.

Performs OpenGL commands to render current Flutter view.

Definition at line 597 of file fl_compositor_opengl.cc.

                                                                  {
  g_return_if_fail(FL_IS_COMPOSITOR_OPENGL(self));
 
  glClearColor(background_color->red, background_color->green,
               background_color->blue, background_color->alpha);
  glClear(GL_COLOR_BUFFER_BIT);
 
  GPtrArray* framebuffers = reinterpret_cast<GPtrArray*>((g_hash_table_lookup(
      self->framebuffers_by_view_id, GINT_TO_POINTER(view_id))));
  if (framebuffers != nullptr) {
    render(self, framebuffers, width, height);
  }
 
  glFlush();
}

References height, render(), view_id, and width.

Referenced by render_cb(), and TEST().

fl_compositor_opengl_setup()

void fl_compositor_opengl_setup

(

FlCompositorOpenGL *

compositor

)

fl_compositor_opengl_setup: @compositor: an #FlCompositorOpenGL.

Creates OpenGL resources required before rendering. Requires an active context.

Definition at line 582 of file fl_compositor_opengl.cc.

                                                          {
  g_return_if_fail(FL_IS_COMPOSITOR_OPENGL(self));
 
  // Note: NVIDIA and Vivante are temporarily disabled due to
  // https://github.com/flutter/flutter/issues/152099
  self->has_gl_framebuffer_blit =
      !is_nvidia() && !is_vivante() &&
      (epoxy_gl_version() >= 30 ||
       epoxy_has_gl_extension("GL_EXT_framebuffer_blit"));
 
  if (!self->has_gl_framebuffer_blit) {
    setup_shader(self);
  }
}

References is_vivante(), and setup_shader().

Referenced by realize_cb(), and TEST().

G_DECLARE_FINAL_TYPE()

G_BEGIN_DECLS G_DECLARE_FINAL_TYPE	(	FlCompositorOpenGL	,
		fl_compositor_opengl	,
		FL	,
		COMPOSITOR_OPENGL	,
		FlCompositor
	)

FlCompositorOpenGL:

#FlCompositorOpenGL is an abstract class that allows Flutter to draw pixels. fl_compositor_opengl_new: @engine: an #FlEngine.

Creates a new OpenGL compositor.

Returns: a new #FlCompositorOpenGL.