refactor: fold the OpenGL backend classes into rendering

1 files changed, 38 insertions, 17 deletions

diff --git a/src/rendering/shader.h b/src/rendering/shader.h
index 7e4f48c..c974ec4 100644
--- a/src/rendering/shader.h
+++ b/src/rendering/shader.h
@@ -11,34 +11,55 @@
 #define TEXTURE_FETCH_BARRIER_BIT     0x00000008
 #define IMAGE_ACCESS_BARRIER_BIT      0x00000020
 
-namespace Donut 
+namespace Donut
 {
     class Shader
     {
     public:
-        virtual ~Shader() = default;
+        Shader(const std::string& filepath);
+        Shader(const std::string& name, const std::string& vertex_src, const std::string& fragment_src);
+        Shader(const std::string& name, const std::string& compute_src);
+        ~Shader();
 
-        virtual auto bind() const -> void = 0;
-        virtual auto unbind() const -> void = 0;
+        auto bind() const -> void;
+        auto unbind() const -> void;
 
-        virtual auto set_int(     const std::string& name, int value) -> void = 0;
-        virtual auto set_int_array(const std::string& name, int* values, uint32_t count) -> void = 0;
-        virtual auto set_float(   const std::string& name, float value) -> void = 0;
-        virtual auto set_float2(  const std::string& name, const glm::vec2& value) -> void = 0;
-        virtual auto set_float3(  const std::string& name, const glm::vec3& value) -> void = 0;
-        virtual auto set_float4(  const std::string& name, const glm::vec4& value) -> void = 0;
-        virtual auto set_mat4(    const std::string& name, const glm::mat4& value) -> void = 0;
+        auto set_int(     const std::string& name, int value) -> void;
+        auto set_int_array(const std::string& name, int* values, uint32_t count) -> void;
+        auto set_float(   const std::string& name, float value) -> void;
+        auto set_float2(  const std::string& name, const glm::vec2& value) -> void;
+        auto set_float3(  const std::string& name, const glm::vec3& value) -> void;
+        auto set_float4(  const std::string& name, const glm::vec4& value) -> void;
+        auto set_mat4(    const std::string& name, const glm::mat4& value) -> void;
 
-        virtual auto dispatch(uint32_t x, uint32_t y = 1, uint32_t z = 1) -> void = 0;
-        virtual auto dispatch_indirect(uint32_t offset = 0) -> void = 0;
-        virtual auto memory_barrier(uint32_t barriers) -> void = 0;
+        auto dispatch(uint32_t x, uint32_t y = 1, uint32_t z = 1) -> void;
+        auto dispatch_indirect(uint32_t offset = 0) -> void;
+        auto memory_barrier(uint32_t barriers) -> void;
 
-        virtual auto get_name() const -> const std::string& = 0;
-        virtual auto get_renderer_id() const -> uint32_t = 0;
+        auto get_name() const -> const std::string& { return m_name; }
+        auto get_renderer_id() const -> uint32_t { return m_renderer_id; }
+
+        auto upload_uniform_int(     const std::string& name, int value) -> void;
+        auto upload_uniform_int_array(const std::string& name, int* values, uint32_t count) -> void;
+        auto upload_uniform_float(   const std::string& name, float value) -> void;
+        auto upload_uniform_float2(  const std::string& name, const glm::vec2& value) -> void;
+        auto upload_uniform_float3(  const std::string& name, const glm::vec3& value) -> void;
+        auto upload_uniform_float4(  const std::string& name, const glm::vec4& value) -> void;
+        auto upload_uniform_mat3(    const std::string& name, const glm::mat3& matrix) -> void;
+        auto upload_uniform_mat4(    const std::string& name, const glm::mat4& matrix) -> void;
 
         static auto create(const std::string& filepath) -> Shader*;
         static auto create(const std::string& name, const std::string& vertex_src, const std::string& fragment_src) -> Shader*;
         static auto create_compute(const std::string& name, const std::string& compute_src) -> Shader*;
+
+    private:
+        auto read_file(const std::string& filepath) -> std::string;
+        auto pre_process(const std::string& source) -> std::unordered_map<uint32_t, std::string>;
+        auto compile(const std::unordered_map<uint32_t, std::string>& shader_sources) -> void;
+
+        uint32_t    m_renderer_id = 0;
+        std::string m_name;
+        bool        m_is_slang = false;
     };
 
     class ShaderLibrary
@@ -49,7 +70,7 @@ namespace Donut
         auto load(const std::string& filepath) -> Ref<Shader>;
         auto load(const std::string& name, const std::string& filepath) -> Ref<Shader>;
 
-        Ref<Shader> get(const std::string& name);
+        auto get(const std::string& name) -> Ref<Shader>;
 
         auto exists(const std::string& name) const -> bool;
     private: