2021-08-07 18:57:13 -04:00
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#pragma once
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#include <string>
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#include <memory>
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#include "game/graphics/dma/dma_chain_read.h"
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#include "game/graphics/opengl_renderer/Shader.h"
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#include "game/graphics/texture/TexturePool.h"
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/*!
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* Matches the bucket-id enum in GOAL
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*/
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enum class BucketId {
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BUCKET0 = 0,
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BUCKET1 = 1,
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// ...
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DEBUG_DRAW_0 = 67,
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DEBUG_DRAW_1 = 68,
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MAX_BUCKETS = 69
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};
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/*!
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* The main renderer will contain a single SharedRenderState that's passed to all bucket renderers.
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* This allows bucket renders to share textures and shaders.
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*/
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struct SharedRenderState {
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explicit SharedRenderState(std::shared_ptr<TexturePool> _texture_pool)
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: texture_pool(_texture_pool) {}
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ShaderLibrary shaders;
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std::shared_ptr<TexturePool> texture_pool;
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u32 buckets_base = 0; // address of buckets array.
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u32 next_bucket = 0; // address of next bucket that we haven't started rendering in buckets
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u32 default_regs_buffer = 0; // address of the default regs chain.
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};
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/*!
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* Interface for bucket renders. Each bucket will have its own BucketRenderer.
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*/
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class BucketRenderer {
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public:
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BucketRenderer(const std::string& name, BucketId my_id) : m_name(name), m_my_id(my_id) {}
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virtual void render(DmaFollower& dma, SharedRenderState* render_state) = 0;
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std::string name_and_id() const;
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virtual ~BucketRenderer() = default;
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bool& enabled() { return m_enabled; }
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virtual bool empty() const { return false; }
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virtual void draw_debug_window() {}
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protected:
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std::string m_name;
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BucketId m_my_id;
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bool m_enabled = true;
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};
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/*!
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* Renderer that makes sure the bucket is empty and ignores it.
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*/
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class EmptyBucketRenderer : public BucketRenderer {
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public:
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EmptyBucketRenderer(const std::string& name, BucketId my_id);
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void render(DmaFollower& dma, SharedRenderState* render_state) override;
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bool empty() const override { return true; }
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};
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