1 files changed, 836 insertions, 0 deletions

diff --git a/src/GalOgl.cpp b/src/GalOgl.cpp
new file mode 100644
index 0000000..4fb2794
--- /dev/null
+++ b/src/GalOgl.cpp
@@ -0,0 +1,836 @@
+#include "Gal.hpp"
+
+#include <easylogging++.h>
+#include <GL/glew.h>
+
+#include "Utility.hpp"
+
+using namespace Gal;
+
+class ImplOgl;
+class FramebufferDefaultOgl;
+class ShaderOgl;
+
+std::unique_ptr<ImplOgl> impl;
+std::shared_ptr<FramebufferDefaultOgl> fbDefault;
+
+size_t GalTypeGetComponents(Gal::Type type) {
+    switch (type) {
+    case Type::Float:
+    case Type::Double:
+    case Type::Uint8:
+    case Type::Uint16:
+    case Type::Uint32:
+    case Type::Int8:
+    case Type::Int16:
+    case Type::Int32:
+        return 1;
+    case Type::Vec2:
+    case Type::Vec2u8:
+    case Type::Vec2u16:
+    case Type::Vec2u32:
+    case Type::Vec2i8:
+    case Type::Vec2i16:
+    case Type::Vec2i32:
+        return 2;
+    case Type::Vec3:
+    case Type::Vec3u8:
+    case Type::Vec3u16:
+    case Type::Vec3u32:
+    case Type::Vec3i8:
+    case Type::Vec3i16:
+    case Type::Vec3i32:
+        return 3;
+    case Type::Vec4:
+    case Type::Vec4u8:
+    case Type::Vec4u16:
+    case Type::Vec4u32:
+    case Type::Vec4i8:
+    case Type::Vec4i16:
+    case Type::Vec4i32:
+    case Type::Mat2:
+        return 4;
+    case Type::Mat3:
+        return 9;
+    case Type::Mat4:
+        return 16;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+size_t GalTypeGetComponentSize(Gal::Type type) {
+    switch (type) {	
+    case Type::Uint8:
+    case Type::Int8:
+    case Type::Vec2u8:
+    case Type::Vec2i8:
+    case Type::Vec3u8:
+    case Type::Vec3i8:
+    case Type::Vec4u8:
+    case Type::Vec4i8:
+        return 1;
+    case Type::Uint16:
+    case Type::Int16:
+    case Type::Vec2u16:
+    case Type::Vec2i16:
+    case Type::Vec3u16:
+    case Type::Vec3i16:
+    case Type::Vec4u16:
+    case Type::Vec4i16:
+        return 2;
+    case Type::Float:
+    case Type::Uint32:
+    case Type::Int32:
+    case Type::Vec2:
+    case Type::Vec2u32:
+    case Type::Vec2i32:
+    case Type::Vec3:
+    case Type::Vec3u32:
+    case Type::Vec3i32:
+    case Type::Vec4:
+    case Type::Vec4u32:
+    case Type::Vec4i32:
+    case Type::Mat2:
+    case Type::Mat3:
+    case Type::Mat4:
+        return 4;
+    case Type::Double:
+        return 8;
+    default:
+        return 0;
+    }
+}
+
+size_t GalTypeGetSize(Gal::Type type) {
+    return GalTypeGetComponents(type) * GalTypeGetComponentSize(type);
+}
+
+GLenum GalTypeGetComponentGlType(Gal::Type type) {
+    switch (type) {
+    case Type::Float:
+    case Type::Vec2:
+    case Type::Vec3:
+    case Type::Vec4:
+    case Type::Mat2:
+    case Type::Mat3:
+    case Type::Mat4:
+        return GL_FLOAT;
+    case Type::Double:
+        return GL_DOUBLE;
+    case Type::Uint8:
+    case Type::Vec2u8:
+    case Type::Vec3u8:
+    case Type::Vec4u8:
+        return GL_UNSIGNED_BYTE;
+    case Type::Uint16:
+    case Type::Vec2u16:
+    case Type::Vec3u16:
+    case Type::Vec4u16:
+        return GL_UNSIGNED_SHORT;
+    case Type::Uint32:
+    case Type::Vec2u32:
+    case Type::Vec3u32:
+    case Type::Vec4u32:
+        return GL_UNSIGNED_INT;
+    case Type::Int8:
+    case Type::Vec2i8:
+    case Type::Vec3i8:
+    case Type::Vec4i8:
+        return GL_BYTE;
+    case Type::Int16:
+    case Type::Vec2i16:
+    case Type::Vec3i16:
+    case Type::Vec4i16:
+        return GL_SHORT;
+    case Type::Int32:
+    case Type::Vec2i32:
+    case Type::Vec3i32:
+    case Type::Vec4i32:
+        return GL_INT;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+size_t GalFormatGetSize(Format format) {
+    switch (format) {
+    case Format::R8G8B8:
+        return 3;
+    case Format::R8G8B8A8:
+        return 4;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+GLenum GalFormatGetGlInternalFormat(Format format) {
+    switch (format) {
+    case Format::R8G8B8:
+        return GL_RGB8;
+    case Format::R8G8B8A8:
+        return GL_RGBA8;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+GLenum GalFormatGetGlFormat(Format format) {
+    switch (format) {
+    case Format::R8G8B8:
+        return GL_RGB;
+    case Format::R8G8B8A8:
+        return GL_RGBA;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+GLenum GalFormatGetGlType(Format format) {
+    switch (format) {
+    case Format::R8G8B8:
+        return GL_UNSIGNED_BYTE;
+    case Format::R8G8B8A8:
+        return GL_UNSIGNED_BYTE;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+GLenum GalFilteringGetGlType(Filtering filtering) {
+    switch (filtering) {
+    case Filtering::Nearest:
+        return GL_NEAREST;
+    case Filtering::Bilinear:
+        return GL_LINEAR;
+    case Filtering::Trilinear:
+        return GL_LINEAR_MIPMAP_LINEAR;
+    case Filtering::Anisotropy:
+        return GL_LINEAR;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+GLenum GalWrappingGetGlType(Wrapping wrapping) {
+    switch (wrapping) {
+    case Wrapping::Repeat:
+        return GL_REPEAT;
+    case Wrapping::Clamp:
+        return GL_CLAMP_TO_EDGE;
+    case Wrapping::Mirror:
+        return GL_MIRRORED_REPEAT;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+
+class ShaderOgl : public Shader {
+public:
+    bool isVertex = true;
+    std::string code;
+};
+
+class BufferBindingOgl : public BufferBinding {
+public:
+    BufferBindingOgl(size_t id) : bufferId(id) {}
+
+    const size_t bufferId;
+
+    static constexpr size_t indexValue = (std::numeric_limits<size_t>::max)(); //parenthess for windows' max macro
+};
+
+class BufferOgl : public Buffer {
+public:
+    GLuint vbo;
+
+    virtual void SetData(std::vector<std::byte>&& data) override {
+        glBindBuffer(GL_ARRAY_BUFFER, vbo);
+        glBufferData(GL_ARRAY_BUFFER, data.size(), data.data(), GL_STATIC_DRAW);
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+        glCheckError();
+    }
+};
+
+class TextureConfigOgl : public TextureConfig {
+public:
+
+    Format format;
+    size_t width = 0, height = 0, depth = 0;
+    bool interpolateLayers = false;
+
+    Filtering min = Filtering::Nearest, max = Filtering::Nearest;
+    Wrapping wrap = Wrapping::Clamp;
+    
+
+    virtual void SetMinFilter(Filtering filter) override {
+        min = filter;
+    }
+
+    virtual void SetMaxFilter(Filtering filter) override {
+        max = filter;
+    }
+
+    virtual void SetWrapping(Wrapping wrapping) override {
+        wrap = wrapping;
+    }
+
+};
+
+class TextureOgl : public Texture {
+public:
+
+    GLenum type;
+    GLuint texture;
+    Format format;
+    size_t width = 0, height = 0, depth = 0;
+
+    virtual void SetData(std::vector<std::byte>&& data, size_t mipLevel = 0) override {
+        if (data.size() != width * height * depth * GalFormatGetSize(format))
+            throw std::logic_error("Size of data is not valid for this texture");
+
+        glBindTexture(type, texture);
+        glCheckError();
+
+        switch (type) {
+        case GL_TEXTURE_2D:
+        case GL_PROXY_TEXTURE_2D:
+        case GL_TEXTURE_1D_ARRAY:
+        case GL_PROXY_TEXTURE_1D_ARRAY:
+        case GL_TEXTURE_RECTANGLE:
+        case GL_PROXY_TEXTURE_RECTANGLE:
+        case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+        case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+        case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+        case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+        case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+        case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+        case GL_PROXY_TEXTURE_CUBE_MAP:
+            glTexImage2D(type, mipLevel, GalFormatGetGlInternalFormat(format), width, height, 0, GalFormatGetGlFormat(format), GalFormatGetGlType(format), data.data());
+            break;
+        case GL_TEXTURE_3D:
+        case GL_PROXY_TEXTURE_3D:
+        case GL_TEXTURE_2D_ARRAY:
+        case GL_PROXY_TEXTURE_2D_ARRAY:
+            glTexImage3D(type, mipLevel, GalFormatGetGlInternalFormat(format), width, height, depth, 0, GalFormatGetGlFormat(format), GalFormatGetGlType(format), data.data());
+            break;
+        default:
+            throw std::runtime_error("Unknown texture type");
+        }
+
+        glCheckError();
+
+        glBindTexture(type, 0);
+    }
+
+};
+
+class PipelineConfigOgl : public PipelineConfig {
+public:
+    std::shared_ptr<ShaderOgl> vertexShader, pixelShader;
+    std::map<std::string, Type> shaderParameters;
+    std::shared_ptr<Framebuffer> targetFb;
+    std::vector<std::vector<VertexAttribute>> vertexBuffers;
+
+public:
+    virtual void SetVertexShader(std::shared_ptr<Shader> shader) override {
+        vertexShader = std::static_pointer_cast<ShaderOgl,Shader>(shader);
+    }
+
+    virtual void SetPixelShader(std::shared_ptr<Shader> shader) override {
+        pixelShader = std::static_pointer_cast<ShaderOgl, Shader>(shader);
+    }
+
+    virtual void AddShaderParameter(std::string_view name, Type type) override {
+        shaderParameters.emplace(std::string(name), type);
+    }
+
+    virtual void SetTarget(std::shared_ptr<Framebuffer> target) override {
+        targetFb = target;
+    }
+
+    virtual std::shared_ptr<BufferBinding> BindVertexBuffer(std::vector<VertexAttribute> &&bufferLayout) override {
+        auto binding = std::make_shared<BufferBindingOgl>(vertexBuffers.size());
+        vertexBuffers.push_back(bufferLayout);
+        return std::static_pointer_cast<BufferBinding, BufferBindingOgl>(binding);
+    }
+
+    virtual std::shared_ptr<BufferBinding> BindIndexBuffer() override {
+        auto binding = std::make_shared<BufferBindingOgl>(BufferBindingOgl::indexValue);
+        return std::static_pointer_cast<BufferBinding, BufferBindingOgl>(binding);
+    }
+    
+};
+
+class PipelineInstanceOgl : public PipelineInstance {
+public:
+    GLuint vao;
+
+    virtual void Activate() override {
+        glBindVertexArray(vao);
+        glCheckError();
+    }
+
+    virtual void Render(size_t offset = 0, size_t count = -1) override {
+        glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_INT, 0);
+        glCheckError();
+    }
+};
+
+class PipelineOgl : public Pipeline {
+public:
+    std::map<std::string, size_t> shaderParameters;
+    GLuint program;
+    struct VertexBindingCommand {
+        size_t bufferId;
+        size_t location;
+        GLenum type;
+        size_t count;
+        size_t stride;
+        size_t offset;
+    };
+    std::vector<VertexBindingCommand> vertexBindCmds;
+    
+    virtual void Activate() override {
+        glUseProgram(program);
+        glCheckError();
+    }
+
+    virtual std::shared_ptr<PipelineInstance> CreateInstance(std::vector<std::pair<std::shared_ptr<BufferBinding>, std::shared_ptr<Buffer>>>&& buffers) override {
+        auto instance = std::make_shared<PipelineInstanceOgl>();
+
+        size_t indexBuffer = BufferBindingOgl::indexValue;
+        std::map<size_t, size_t> bufferBindingId;
+
+        for (auto&& [binding, buffer] : buffers) {
+            auto bind = std::static_pointer_cast<BufferBindingOgl, BufferBinding>(binding);
+            auto buff = std::static_pointer_cast<BufferOgl, Buffer>(buffer);
+
+            if (bind->bufferId == BufferBindingOgl::indexValue)
+                indexBuffer = buff->vbo;
+            else
+                bufferBindingId.insert({ bind->bufferId,buff->vbo });
+        }
+
+        glGenVertexArrays(1, &instance->vao);
+        glBindVertexArray(instance->vao);
+        glCheckError();
+
+        for (const auto& cmd : vertexBindCmds) {
+            glBindBuffer(GL_ARRAY_BUFFER, bufferBindingId.find(cmd.bufferId)->second);
+            glCheckError();
+            switch (cmd.type) {
+            case GL_FLOAT:
+            case GL_DOUBLE:
+                glVertexAttribPointer(cmd.location, cmd.count, cmd.type, GL_FALSE, cmd.offset, reinterpret_cast<void*>(cmd.stride));
+                break;
+            case GL_UNSIGNED_BYTE:
+            case GL_BYTE:
+            case GL_UNSIGNED_SHORT:
+            case GL_SHORT:
+            case GL_UNSIGNED_INT:
+            case GL_INT:
+                glVertexAttribIPointer(cmd.location, cmd.count, cmd.type, cmd.offset, reinterpret_cast<void*>(cmd.stride));
+                break;
+            }
+            
+            glCheckError();
+            glEnableVertexAttribArray(cmd.location);
+            glCheckError();
+        }
+
+        if (indexBuffer != BufferBindingOgl::indexValue) {
+            glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
+        }
+
+        glBindVertexArray(0);
+        glBindBuffer(GL_ARRAY_BUFFER, 0);
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+        glCheckError();
+
+        return instance;
+    }
+
+    virtual void SetShaderParameter(std::string_view name, float value) override {
+        Activate();
+        glUniform1f(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, double value) override {
+        Activate();
+        glUniform1d(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, int8_t value) override {
+        Activate();
+        glUniform1i(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, int16_t value) override {
+        Activate();
+        glUniform1i(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, int32_t value) override {
+        Activate();
+        glUniform1i(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, uint8_t value) override {
+        Activate();
+        glUniform1ui(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, uint16_t value) override {
+        Activate();
+        glUniform1ui(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, uint32_t value) override {
+        Activate();
+        glUniform1ui(shaderParameters.at(std::string(name)), value);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, glm::vec2 value) override {
+        Activate();
+        glUniform2f(shaderParameters.at(std::string(name)), value.x, value.y);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, glm::uvec2 value) override {
+        Activate();
+        glUniform2ui(shaderParameters.at(std::string(name)), value.x, value.y);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, glm::vec3 value) override {
+        Activate();
+        glUniform3f(shaderParameters.at(std::string(name)), value.x, value.y, value.z);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, glm::vec4 value) override {
+        Activate();
+        glUniform4f(shaderParameters.at(std::string(name)), value.x, value.y, value.z, value.w);
+        glCheckError();
+    }
+
+    virtual void SetShaderParameter(std::string_view name, glm::mat4 value) override {
+        Activate();
+        glCheckError();
+    }
+};
+
+class ImplOgl : public Impl {
+
+public:
+
+    virtual void Init() override {
+        LOG(INFO) << "Initalizing Gal:OpenGL...";
+        LOG(INFO) << "Initializing GLEW";
+        glewExperimental = GL_TRUE;
+        GLenum glewStatus = glewInit();
+        glCheckError();
+        if (glewStatus != GLEW_OK) {
+            LOG(FATAL) << "Failed to initialize GLEW: " << glewGetErrorString(glewStatus);
+        }
+        glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+        glEnable(GL_DEPTH_TEST);
+        glDepthFunc(GL_LEQUAL);
+
+        glEnable(GL_CULL_FACE);
+        glCullFace(GL_BACK);
+        glFrontFace(GL_CCW);
+
+        glEnable(GL_BLEND);
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        glCheckError();
+        if (glActiveTexture == nullptr) {
+            throw std::runtime_error("GLEW initialization failed with unknown reason");
+        }
+    }
+
+    virtual void DeInit() override {
+        LOG(INFO) << "Destroying Gal:OpenGL...";
+    }
+
+    virtual void Cleanup() override {
+
+    }
+
+
+    virtual std::shared_ptr<Buffer> CreateBuffer() override {
+        auto buff = std::make_shared<BufferOgl>();
+        glGenBuffers(1, &buff->vbo);
+        buff->SetData({});
+        glCheckError();
+        return std::static_pointer_cast<Buffer, BufferOgl>(buff);
+    }
+
+
+    virtual std::shared_ptr<TextureConfig> CreateTexture2DConfig(size_t width, size_t height, Format format) override {
+        auto config = std::make_shared<TextureConfigOgl>();
+
+        config->width = width;
+        config->height = height;
+        config->format = format;
+
+        return std::static_pointer_cast<TextureConfig, TextureConfigOgl>(config);
+    }
+
+    virtual std::shared_ptr<TextureConfig> CreateTexture3DConfig(size_t width, size_t height, size_t depth, bool interpolateLayers, Format format) override {
+        auto config = std::make_shared<TextureConfigOgl>();
+
+        config->width = width;
+        config->height = height;
+        config->depth = depth;
+        config->interpolateLayers = interpolateLayers;
+        config->format = format;
+
+        return std::static_pointer_cast<TextureConfig, TextureConfigOgl>(config);
+    }
+
+    virtual std::shared_ptr<Texture> BuildTexture(std::shared_ptr<TextureConfig> config) override {
+        auto texConfig = std::static_pointer_cast<TextureConfigOgl, TextureConfig>(config);
+        auto texture = std::make_shared<TextureOgl>();
+
+        texture->type = GL_TEXTURE_2D;
+        texture->format = texConfig->format;
+        texture->width = texConfig->width;
+        texture->height = texConfig->height;
+        texture->depth = texConfig->depth;
+
+        glGenTextures(1, &texture->texture);
+        glCheckError();
+
+        glTexParameteri(texture->type, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(texture->type, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(texture->type, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(texture->type, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+        glCheckError();
+
+        texture->SetData(std::vector<std::byte>(texture->width * texture->height * texture->depth * GalFormatGetSize(texture->format)));
+        glCheckError();
+
+        return std::static_pointer_cast<Texture, TextureOgl>(texture);
+    }
+
+
+    virtual std::shared_ptr<PipelineConfig> CreatePipelineConfig() override {
+        auto pipelineConfig = std::make_shared<PipelineConfigOgl>();
+        return std::static_pointer_cast<PipelineConfig, PipelineConfigOgl>(pipelineConfig);
+    }
+
+    virtual std::shared_ptr<Pipeline> BuildPipeline(std::shared_ptr<PipelineConfig> pipelineConfig) override {
+        auto pipeline = std::make_shared<PipelineOgl>();
+        auto config = std::static_pointer_cast<PipelineConfigOgl, PipelineConfig>(pipelineConfig);
+
+        //Shader compilation
+
+        bool vertexFailed = false, pixelFailed = false, linkFailed = false;
+
+        const GLchar* vertexSourcePtr = config->vertexShader->code.c_str();
+        const GLchar* pixelSourcePtr = config->pixelShader->code.c_str();
+
+        GLuint vertex, pixel;
+        GLint success;
+        GLuint program;
+        GLchar infoLog[512];
+
+        vertex = glCreateShader(GL_VERTEX_SHADER);
+        glShaderSource(vertex, 1, &vertexSourcePtr, NULL);
+        glCompileShader(vertex);
+
+        glGetShaderiv(vertex, GL_COMPILE_STATUS, &success);
+        if (!success) {
+            glGetShaderInfoLog(vertex, 512, NULL, infoLog);
+            LOG(ERROR) << "Vertex shader compilation failed: " << std::endl << infoLog;
+            vertexFailed = true;
+        };
+
+        pixel = glCreateShader(GL_FRAGMENT_SHADER);
+        glShaderSource(pixel, 1, &pixelSourcePtr, NULL);
+        glCompileShader(pixel);
+
+        glGetShaderiv(pixel, GL_COMPILE_STATUS, &success);
+        if (!success) {
+            glGetShaderInfoLog(pixel, 512, NULL, infoLog);
+            LOG(ERROR) << "Fragment shader compilation failed: " << std::endl << infoLog;
+            pixelFailed = true;
+        };
+
+        if (vertexFailed || pixelFailed)
+            throw std::runtime_error("Shaders not compiled");
+
+        program = glCreateProgram();
+        glAttachShader(program, vertex);
+        glAttachShader(program, pixel);
+        glLinkProgram(program);
+        glGetProgramiv(program, GL_LINK_STATUS, &success);
+        if (!success) {
+            glGetProgramInfoLog(program, 512, NULL, infoLog);
+            LOG(ERROR) << "Shader program not linked: " << std::endl << infoLog;
+            linkFailed = true;
+        }
+
+        glDeleteShader(vertex);
+        glDeleteShader(pixel);
+
+        if (linkFailed)
+            throw std::runtime_error("Shader not linked");
+
+        glUseProgram(program);
+
+        glCheckError();
+
+        pipeline->program = program;
+
+        //Shader parameters
+
+        for (auto&& [name, type] : config->shaderParameters) {
+            GLint location = glGetUniformLocation(program, name.c_str());
+            if (location < 0) {
+                glDeleteProgram(program);
+                LOG(ERROR) << "Uniform name \"" << name << "\" not found in shader";
+                throw std::runtime_error("Invalid uniform");
+            }
+            switch (type) {
+            case Type::Vec2:
+                glUniform2f(location, 0.0f, 0.0f);
+                break;
+            case Type::Vec2u8:
+            case Type::Vec2u16:
+            case Type::Vec2u32:
+                glUniform2ui(location, 0, 0);
+                break;
+            case Type::Vec4u8:
+                glUniform4ui(location, 0, 0, 0, 0);
+                break;
+            }
+            pipeline->shaderParameters.insert({ name,location });
+        }
+
+        //Vertex attributes
+
+        size_t bufferId = 0;
+        for (const auto& buffer : config->vertexBuffers) {
+            size_t vertexSize = 0;
+            size_t cmdOffset = pipeline->vertexBindCmds.size();
+            for (const auto& [name, type] : buffer) {
+                if (name.empty()) {
+                    vertexSize += GalTypeGetSize(type);
+                    continue;
+                }
+
+                GLint location = glGetAttribLocation(program, name.c_str());
+                if (location < 0) {
+                    glDeleteProgram(program);
+                    LOG(ERROR) << "Vertex attribute name \"" << name << "\" not found in shader";
+                    throw std::runtime_error("Invalid attribute");
+                }
+
+                size_t attribSize = GalTypeGetSize(type);
+
+                pipeline->vertexBindCmds.push_back({
+                    bufferId,
+                    static_cast<size_t>(location),
+                    GalTypeGetComponentGlType(type),
+                    GalTypeGetComponents(type),
+                    vertexSize,
+                    0
+                    });
+
+                vertexSize += attribSize;
+            }
+
+            for (size_t i = cmdOffset; i < pipeline->vertexBindCmds.size(); i++)
+                pipeline->vertexBindCmds[i].offset = vertexSize;
+
+            bufferId++;
+        }
+
+        glCheckError();
+
+        return pipeline;
+    }
+
+    virtual std::shared_ptr<FramebufferConfig> CreateFramebufferConfig() override {
+        return nullptr;
+    }
+
+    virtual std::shared_ptr<Framebuffer> BuildFramebuffer(std::shared_ptr<FramebufferConfig> config) override {
+        return nullptr;
+    }
+
+    virtual std::shared_ptr<Framebuffer> GetDefaultFramebuffer() override {
+        if (!fbDefault)
+            fbDefault = std::make_shared<FramebufferDefaultOgl>();
+        return std::static_pointer_cast<Framebuffer, FramebufferDefaultOgl>(fbDefault);
+    }
+
+
+    virtual std::shared_ptr<ShaderParameters> GetGlobalShaderParameters() override {
+        return nullptr;
+    }
+
+    virtual std::shared_ptr<Shader> LoadVertexShader(std::string_view code) override {
+        auto shader = std::make_shared<ShaderOgl>();
+        shader->code = code;
+        shader->isVertex = true;
+        return std::static_pointer_cast<Shader, ShaderOgl>(shader);
+    }
+
+    virtual std::shared_ptr<Shader> LoadPixelShader(std::string_view code) override {
+        auto shader = std::make_shared<ShaderOgl>();
+        shader->code = code;
+        shader->isVertex = false;
+        return std::static_pointer_cast<Shader, ShaderOgl>(shader);
+    }
+};
+
+class FramebufferDefaultOgl : public Framebuffer {
+    size_t vpX, vpY, vpW, vpH;
+public:
+
+    virtual void Clear() override {
+        GLbitfield clearBits = 0;
+        clearBits |= GL_COLOR_BUFFER_BIT;
+        clearBits |= GL_DEPTH_BUFFER_BIT;
+        clearBits |= GL_STENCIL_BUFFER_BIT;
+        glClear(clearBits);
+    }
+
+    virtual void SetViewport(size_t x, size_t y, size_t w, size_t h) override {
+        vpX = x;
+        vpY = y;
+        vpW = w;
+        vpH = h;
+        glViewport(x, y, w, h);
+    }
+};
+
+Impl* Gal::GetImplementation()
+{
+    if (!impl)
+        impl = std::make_unique<ImplOgl>();
+
+    return impl.get();
+}