[core] move gl::Context to Backend and refactor View

1 files changed, 13 insertions, 4 deletions

diff --git a/src/mbgl/util/offscreen_texture.hpp b/src/mbgl/util/offscreen_texture.hpp
index c71c0e51d9..8928bc2434 100644
--- a/src/mbgl/util/offscreen_texture.hpp
+++ b/src/mbgl/util/offscreen_texture.hpp
@@ -1,6 +1,10 @@
 #pragma once
 
+#include <mbgl/map/view.hpp>
+#include <mbgl/gl/framebuffer.hpp>
 #include <mbgl/gl/texture.hpp>
+#include <mbgl/util/optional.hpp>
+#include <mbgl/util/image.hpp>
 
 namespace mbgl {
 
@@ -8,15 +12,20 @@ namespace gl {
 class Context;
 } // namespace gl
 
-class OffscreenTexture {
+class OffscreenTexture : public View {
 public:
-    void bind(gl::Context&, std::array<uint16_t, 2> size);
+    OffscreenTexture(gl::Context&, std::array<uint16_t, 2> size = {{ 256, 256 }});
+
+    void bind() override;
+
+    PremultipliedImage readStillImage();
 
     gl::Texture& getTexture();
-    std::array<uint16_t, 2> getSize() const;
 
 private:
-    optional<gl::UniqueFramebuffer> framebuffer;
+    gl::Context& context;
+    std::array<uint16_t, 2> size;
+    optional<gl::Framebuffer> framebuffer;
     optional<gl::Texture> texture;
 };