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#pragma once
#include "rendering/shader.h"
#include <unordered_map>
#include <glm/glm.hpp>
namespace Donut
{
class OpenGLShader
: public Shader
{
public:
OpenGLShader(const std::string& filepath);
OpenGLShader(const std::string& name, const std::string& vertex_src, const std::string& fragment_src);
OpenGLShader(const std::string& name, const std::string& compute_src);
virtual ~OpenGLShader();
virtual void bind() const override;
virtual void unbind() const override;
virtual void set_int( const std::string& name, int value) override;
virtual void set_int_array(const std::string& name, int* values, uint32_t count) override;
virtual void set_float( const std::string& name, float value) override;
virtual void set_float2( const std::string& name, const glm::vec2& value) override;
virtual void set_float3( const std::string& name, const glm::vec3& value) override;
virtual void set_float4( const std::string& name, const glm::vec4& value) override;
virtual void set_mat4( const std::string& name, const glm::mat4& value) override;
virtual void dispatch(uint32_t x, uint32_t y = 1, uint32_t z = 1) override;
virtual void dispatch_indirect(uint32_t offset = 0) override;
virtual void memory_barrier(uint32_t barriers) override;
virtual const std::string& get_name() const override { return m_name; }
void upload_uniform_int( const std::string& name, int value);
void upload_uniform_int_array(const std::string& name, int* values, uint32_t count);
void upload_uniform_float( const std::string& name, float value);
void upload_uniform_float2( const std::string& name, const glm::vec2& value);
void upload_uniform_float3( const std::string& name, const glm::vec3& value);
void upload_uniform_float4( const std::string& name, const glm::vec4& value);
void upload_uniform_mat3( const std::string& name, const glm::mat3& matrix);
void upload_uniform_mat4( const std::string& name, const glm::mat4& matrix);
private:
std::string read_file(const std::string& filepath);
std::unordered_map<uint32_t, std::string> pre_process(const std::string& source);
void compile(const std::unordered_map<uint32_t, std::string>& shader_sources);
private:
uint32_t m_renderer_id;
std::string m_name;
};
};
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