[core] cache binary shaders on Android

src/mbgl/programs/binary_program.hpp

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <mbgl/gl/types.hpp>
+
+#include <string>
+#include <vector>
+
+namespace mbgl {
+
+class BinaryProgram {
+public:
+    // Initialize a BinaryProgram object from a serialized represenation.
+    BinaryProgram(std::string&& data);
+
+    BinaryProgram(gl::BinaryProgramFormat,
+                  std::string&& binaryCode,
+                  const std::string& binaryIdentifier,
+                  std::vector<std::pair<const std::string, gl::AttributeLocation>>&&,
+                  std::vector<std::pair<const std::string, gl::UniformLocation>>&&);
+
+    std::string serialize() const;
+
+    gl::BinaryProgramFormat format() const {
+        return binaryFormat;
+    }
+    const std::string& code() const {
+        return binaryCode;
+    }
+    const std::string& identifier() const {
+        return binaryIdentifier;
+    }
+    gl::AttributeLocation attributeLocation(const std::string& name) const;
+    gl::UniformLocation uniformLocation(const std::string& name) const;
+
+private:
+    gl::BinaryProgramFormat binaryFormat = 0;
+    std::string binaryCode;
+    std::string binaryIdentifier;
+    std::vector<std::pair<const std::string, gl::AttributeLocation>> attributes;
+    std::vector<std::pair<const std::string, gl::UniformLocation>> uniforms;
+};
+
+} // namespace mbgl