[core] Improve attribute binding API

1 files changed, 10 insertions, 0 deletions

diff --git a/src/mbgl/gl/context.hpp b/src/mbgl/gl/context.hpp
index e26b35e7c0..6a5d44793a 100644
--- a/src/mbgl/gl/context.hpp
+++ b/src/mbgl/gl/context.hpp
@@ -6,6 +6,7 @@
 #include <mbgl/gl/texture.hpp>
 #include <mbgl/gl/vertex_buffer.hpp>
 #include <mbgl/gl/index_buffer.hpp>
+#include <mbgl/gl/attribute.hpp>
 #include <mbgl/util/noncopyable.hpp>
 
 #include <memory>
@@ -60,6 +61,14 @@ public:
                      TextureFilter = TextureFilter::Nearest,
                      TextureMipMap = TextureMipMap::No);
 
+    template <class Shader, class Vertex>
+    void bindAttributes(const Shader& shader, const VertexBuffer<Vertex>&, const int8_t* offset) {
+        static_assert(std::is_same<typename Shader::VertexType, Vertex>::value, "vertex type mismatch");
+        for (const auto& binding : AttributeBindings<Shader, Vertex>()(shader)) {
+            bindAttribute(binding, sizeof(Vertex), offset);
+        }
+    }
+
     // Actually remove the objects we marked as abandoned with the above methods.
     // Only call this while the OpenGL context is exclusive to this thread.
     void performCleanup();
@@ -115,6 +124,7 @@ private:
     UniqueBuffer createVertexBuffer(const void* data, std::size_t size);
     UniqueBuffer createIndexBuffer(const void* data, std::size_t size);
     UniqueTexture createTexture(uint16_t width, uint16_t height, const void* data, TextureUnit);
+    void bindAttribute(const AttributeBinding&, std::size_t stride, const int8_t* offset);
 
     friend detail::ProgramDeleter;
     friend detail::ShaderDeleter;