Primitive renderpass api & use handle for low level api resources

1 files changed, 97 insertions, 0 deletions

diff --git a/include/primitive-renderpass.hpp b/include/primitive-renderpass.hpp
new file mode 100644
index 0000000..45b43e9
--- /dev/null
+++ b/include/primitive-renderpass.hpp
@@ -0,0 +1,97 @@
+#pragma once
+
+#include <stdint.h>
+#include <vector>
+#include <array>
+
+#include "vk-renderer.hpp"
+#include "renderpass.hpp"
+
+class Buffer;
+class Texture;
+class Sampler;
+class Primitive;
+
+class PrimitiveRenderpass : public Renderpass {
+    public:
+
+    PrimitiveRenderpass(vkapi& api);
+
+    void add_primitive(Primitive* new_primitive);
+
+    void add_color_attachment(VkFormat format);
+
+    void set_depth_stencil(Texture* depth_stencil);
+
+    void set_viewport(float x, float y, float width, float height);
+
+    void set_color_attachment(uint32_t index, Texture* attachment);
+
+    void finalize_render_pass();
+
+    void execute(vkrenderer& renderer, VkCommandBuffer command_buffer) override final;
+
+    VkRenderPass render_pass = VK_NULL_HANDLE;
+
+    private:
+
+    void create_framebuffers();
+
+    void recreate_framebuffers();
+
+    VkViewport viewport     = { .minDepth = 0.f, .maxDepth = 1.f };
+
+    std::vector<Texture*> color_attachments;
+    std::vector<VkImageView> color_attachments_view;
+    std::vector<VkFormat> color_attachments_format;
+
+    std::array<framebuffer, vkrenderer::virtual_frames_count> framebuffers;
+
+    std::vector<Primitive*> primitives;
+};
+
+
+class Primitive {
+    public:
+
+    Primitive(vkapi& api, PrimitiveRenderpass& render_pass)
+        : api(api), primitive_render_pass(render_pass)
+    {};
+
+    void set_pipeline(std::string& shader_name);
+
+    void set_constant_offset(off_t offset);
+    void set_constant(off_t offset, uint64_t* constant);
+    void set_constant(off_t offset, Texture* texture);
+    void set_constant(off_t offset, Buffer* buffer);
+    void set_constant(off_t offset, Sampler* sampler);
+
+    void set_index_buffer(Buffer* index_buffer);
+
+    void set_scissor(int32_t x, int32_t y, uint32_t width, uint32_t height);
+
+    void set_draw_info(size_t vertex_count, off_t first_vertex, off_t vertex_offset);
+
+    void render(VkCommandBuffer command_buffer);
+
+
+private:
+
+    vkapi& api;
+
+    PrimitiveRenderpass& primitive_render_pass;
+
+    pipeline    pipeline;
+
+    Buffer*     index_buffer;
+
+    size_t      element_count;
+    off_t       first_vertex;
+    off_t       vertex_offset;
+
+    off_t       constant_offset;
+
+    VkRect2D    scissor = {};
+
+    std::array<uint8_t, 64> constants;
+};