[chore]: MASSIVE refactor + more vulkan bs

1 files changed, 158 insertions, 0 deletions

diff --git a/src/rendering/renderer.h b/src/rendering/renderer.h
new file mode 100644
index 0000000..189723d
--- /dev/null
+++ b/src/rendering/renderer.h
@@ -0,0 +1,158 @@
+#pragma once
+
+#include "core/memory.h"
+#include "vertex_array.h"
+#include "shader.h"
+#include "framebuffer.h"
+
+#include <glm/glm.hpp>
+
+namespace Donut
+{
+    class RendererAPI
+    {
+    public:
+        enum class API
+        {
+            None   = 0,
+            OpenGL = 1,
+            Vulkan = 2,
+        };
+
+    public:
+        virtual ~RendererAPI() = default;
+
+        virtual auto init() -> void                                                = 0;
+        virtual auto set_viewport(uint32_t x, uint32_t y,
+                                  uint32_t width, uint32_t height) -> void          = 0;
+        virtual auto set_clear_color(const glm::vec4& color) -> void                = 0;
+        virtual auto clear() -> void                                               = 0;
+        virtual auto enable_depth_test() -> void                                   = 0;
+        virtual auto disable_depth_test() -> void                                  = 0;
+        virtual auto set_face_culling(bool enabled) -> void                        = 0;
+        virtual auto enable_blending() -> void                                     = 0;
+        virtual auto disable_blending() -> void                                    = 0;
+
+        virtual auto draw_indexed(const Ref<VertexArray>& vertex_array,
+                                  uint32_t index_count = 0) -> void                 = 0;
+
+        virtual auto draw_arrays(uint32_t vertex_count, uint32_t first = 0) -> void = 0;
+        virtual auto draw_lines(const Ref<VertexArray>& vertex_array,
+                                uint32_t index_count = 0) -> void                   = 0;
+        virtual auto bind_texture(uint32_t texture_id, uint32_t slot = 0) -> void   = 0;
+        virtual auto bind_image_texture(uint32_t texture_id,
+                                        uint32_t slot = 0,
+                                        bool read_only = false) -> void             = 0;
+        virtual auto read_pixels(uint32_t x, uint32_t y, uint32_t width, uint32_t height,
+                                 uint32_t format, uint32_t type, void* pixels) -> void = 0;
+
+        inline static auto get_api() -> API         { return s_api; }
+        inline static auto set_api(API api) -> void { s_api = api;  }
+        static auto create() -> Scope<RendererAPI>;
+
+    private:
+        static API s_api;
+    };
+
+    class RenderCommand
+    {
+    public:
+        inline static auto init() -> void
+        {
+            s_renderer_api->init();
+        }
+
+        inline static auto set_viewport(uint32_t x, uint32_t y, uint32_t width, uint32_t height) -> void
+        {
+            s_renderer_api->set_viewport(x, y, width, height);
+        }
+
+        inline static auto set_clear_color(const glm::vec4& color) -> void
+        {
+            s_renderer_api->set_clear_color(color);
+        }
+
+        inline static auto clear() -> void
+        {
+            s_renderer_api->clear();
+        }
+
+        inline static auto enable_depth_test() -> void
+        {
+            s_renderer_api->enable_depth_test();
+        }
+
+        inline static auto disable_depth_test() -> void
+        {
+            s_renderer_api->disable_depth_test();
+        }
+
+        inline static auto set_face_culling(bool enabled) -> void
+        {
+            s_renderer_api->set_face_culling(enabled);
+        }
+
+        inline static auto enable_blending() -> void
+        {
+            s_renderer_api->enable_blending();
+        }
+
+        inline static auto disable_blending() -> void
+        {
+            s_renderer_api->disable_blending();
+        }
+
+        inline static auto draw_indexed(const Ref<VertexArray>& vertex_array, uint32_t index_count = 0) -> void
+        {
+            s_renderer_api->draw_indexed(vertex_array, index_count);
+        }
+
+        inline static auto draw_arrays(uint32_t vertex_count, uint32_t first = 0) -> void
+        {
+            s_renderer_api->draw_arrays(vertex_count, first);
+        }
+
+        inline static auto draw_lines(const Ref<VertexArray>& vertex_array, uint32_t index_count = 0) -> void
+        {
+            s_renderer_api->draw_lines(vertex_array, index_count);
+        }
+
+        inline static auto bind_texture(uint32_t texture_id, uint32_t slot = 0) -> void
+        {
+            s_renderer_api->bind_texture(texture_id, slot);
+        }
+
+        inline static auto bind_image_texture(uint32_t texture_id, uint32_t slot = 0, bool read_only = false) -> void
+        {
+            s_renderer_api->bind_image_texture(texture_id, slot, read_only);
+        }
+
+        inline static auto read_pixels(uint32_t x, uint32_t y, uint32_t width, uint32_t height,
+                                       uint32_t format, uint32_t type, void* pixels) -> void
+        {
+            s_renderer_api->read_pixels(x, y, width, height, format, type, pixels);
+        }
+
+    private:
+        static Scope<RendererAPI> s_renderer_api;
+    };
+
+    class Renderer
+    {
+    public:
+        static auto init() -> void;
+        static auto shutdown() -> void;
+
+        static auto on_window_resize(uint32_t width, uint32_t height) -> void;
+
+        static auto submit(const Ref<Shader>& shader,
+                           const Ref<VertexArray>& vertex_array,
+                           const glm::mat4& transform,
+                           const glm::mat4& view_projection) -> void;
+
+        static auto set_clear_color(const glm::vec4& color) -> void;
+        static auto clear() -> void;
+
+        inline static auto get_api() -> RendererAPI::API { return RendererAPI::get_api(); }
+    };
+};