Impl sdl opengl renderer.

1 files changed, 26 insertions, 1 deletions

diff --git a/include/cru/platform/gui/sdl/OpenGLRenderer.h b/include/cru/platform/gui/sdl/OpenGLRenderer.h
index 2db9d68d..18de3d55 100644
--- a/include/cru/platform/gui/sdl/OpenGLRenderer.h
+++ b/include/cru/platform/gui/sdl/OpenGLRenderer.h
@@ -3,8 +3,13 @@
 #include "gl.h"
 
 #include <cru/base/Base.h>
+#include <cru/base/Guard.h>
+#include <cru/platform/GraphicsBase.h>
+#include <cru/platform/graphics/Painter.h>
+#include <cru/platform/gui/Base.h>
 
 #include <SDL3/SDL_video.h>
+#include <cairo.h>
 
 namespace cru::platform::gui::sdl {
 class SdlWindow;
@@ -12,14 +17,34 @@ class SdlWindow;
 class SdlOpenGLRenderer {
   CRU_DEFINE_CLASS_LOG_TAG("cru::platform::gui::sdl::SdlOpenGLRenderer")
  public:
-  explicit SdlOpenGLRenderer(SdlWindow* window);
+  SdlOpenGLRenderer(SdlWindow* window, int width, int height);
   ~SdlOpenGLRenderer();
 
+  void Resize(int width, int height);
+  std::unique_ptr<graphics::IPainter> BeginPaint();
+  void Present();
+
+ private:
+  GLuint CreateGLProgram();
+  Guard MakeContextCurrent();
+
  private:
   SdlWindow* window_;
   SDL_Window* sdl_window_;
   SDL_WindowID sdl_window_id_;
+
+  int width_, height_;
+
   SDL_GLContext sdl_gl_context_;
   GladGLContext glad_gl_context_;
+
+  GLuint gl_shader_program_;
+  GLuint gl_vertex_array_;
+  GLuint gl_vertex_buffer_;
+  GLuint gl_element_buffer_;
+  GLuint gl_texture_;
+
+  cairo_surface_t* cairo_surface_;
+  cairo_t* cairo_;
 };
 }  // namespace cru::platform::gui::sdl