[core] add gfx::UploadPass, split startRender into prepare and upload

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mbgl/gfx/command_encoder.hpp b/src/mbgl/gfx/command_encoder.hpp
index 46ae551982..5692615643 100644
--- a/src/mbgl/gfx/command_encoder.hpp
+++ b/src/mbgl/gfx/command_encoder.hpp
@@ -10,6 +10,7 @@ namespace gfx {
 class RenderPassDescriptor;
 class RenderPass;
 class Renderable;
+class UploadPass;
 
 class CommandEncoder {
 protected:
@@ -28,6 +29,7 @@ public:
         return { *this, name };
     }
 
+    virtual std::unique_ptr<UploadPass> createUploadPass(const char* name) = 0;
     virtual std::unique_ptr<RenderPass> createRenderPass(const char* name, const RenderPassDescriptor&) = 0;
     virtual void present(Renderable&) = 0;
 };