Repo created

libs/drape/gl_gpu_program.hpp

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+#pragma once
+
+#include "drape/gl_constants.hpp"
+#include "drape/gpu_program.hpp"
+#include "drape/pointers.hpp"
+#include "drape/shader.hpp"
+
+#include <map>
+#include <string>
+#include <vector>
+
+namespace dp
+{
+class GLGpuProgram : public GpuProgram
+{
+public:
+  GLGpuProgram(std::string const & programName, ref_ptr<Shader> vertexShader, ref_ptr<Shader> fragmentShader);
+  ~GLGpuProgram() override;
+
+  void Bind() override;
+  void Unbind() override;
+
+  int8_t GetAttributeLocation(std::string const & attributeName) const;
+  int8_t GetUniformLocation(std::string const & uniformName) const;
+  glConst GetUniformType(std::string const & uniformName) const;
+
+  struct UniformInfo
+  {
+    int8_t m_location = -1;
+    glConst m_type = gl_const::GLFloatType;
+  };
+
+  using UniformsInfo = std::map<std::string, UniformInfo>;
+  UniformsInfo const & GetUniformsInfo() const;
+  uint32_t GetNumericUniformsCount() const { return m_numericUniformsCount; }
+
+private:
+  void LoadUniformLocations();
+  uint32_t CalculateNumericUniformsCount() const;
+
+  uint32_t m_programID;
+
+  ref_ptr<Shader> m_vertexShader;
+  ref_ptr<Shader> m_fragmentShader;
+
+  UniformsInfo m_uniforms;
+  uint8_t m_textureSlotsCount = 0;
+  uint32_t m_numericUniformsCount = 0;
+};
+}  // namespace dp