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73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
#pragma once
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#include "drape/glsl_types.hpp"
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#include "drape/graphics_context.hpp"
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#include "drape/mesh_object.hpp"
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#include "drape/pointers.hpp"
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#include "drape/render_state.hpp"
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#include "drape/static_texture.hpp"
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#include "drape/texture_manager.hpp"
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#include <array>
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#include <cstdint>
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#include <functional>
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#include <mutex>
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#include <vector>
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class ImguiRenderer
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{
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public:
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ImguiRenderer();
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void Render(ref_ptr<dp::GraphicsContext> context,
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ref_ptr<dp::TextureManager> textureManager,
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ref_ptr<gpu::ProgramManager> programManager);
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void Update(std::function<void()> const & uiCallback);
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void Reset();
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private:
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void UpdateTexture();
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void UpdateBuffers();
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struct ImguiVertex
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{
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glsl::vec2 position;
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glsl::vec2 texCoords;
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glsl::vec4 color;
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};
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static_assert(sizeof(ImguiVertex) == 2 * sizeof(glsl::vec4));
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struct DrawCall
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{
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uint32_t indexCount = 0;
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uint32_t startIndex = 0;
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glsl::uvec4 clipRect{};
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};
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drape_ptr<dp::MeshObject> m_mesh;
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uint32_t m_vertexCount = 2000;
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uint32_t m_indexCount = 3000;
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drape_ptr<dp::StaticTexture> m_texture;
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std::vector<unsigned char> m_textureData;
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uint32_t m_textureWidth = 0;
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uint32_t m_textureHeight = 0;
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dp::RenderState m_state;
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struct UiDataBuffer
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{
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std::vector<ImguiVertex> m_vertices;
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std::vector<uint16_t> m_indices;
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std::vector<DrawCall> m_drawCalls;
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uint32_t m_width;
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uint32_t m_height;
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};
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std::array<UiDataBuffer, 2> m_uiDataBuffer;
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size_t m_updateIndex = 0;
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glsl::mat4 m_projection;
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std::mutex m_bufferMutex;
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std::mutex m_textureMutex;
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};
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