63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <mutex>
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namespace extra2d {
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// ============================================================================
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// VRAM 管理器 - 跟踪显存使用情况
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// ============================================================================
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class VRAMManager {
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public:
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static VRAMManager& getInstance();
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// 纹理显存跟踪
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void allocTexture(size_t size);
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void freeTexture(size_t size);
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// VBO/FBO 显存跟踪
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void allocBuffer(size_t size);
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void freeBuffer(size_t size);
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// 查询显存使用情况
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size_t getUsedVRAM() const;
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size_t getTextureVRAM() const;
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size_t getBufferVRAM() const;
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size_t getAvailableVRAM() const;
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// 显存预算管理
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void setVRAMBudget(size_t budget);
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size_t getVRAMBudget() const;
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bool isOverBudget() const;
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// 统计信息
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void printStats() const;
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// 重置计数器
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void reset();
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private:
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VRAMManager();
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~VRAMManager() = default;
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VRAMManager(const VRAMManager&) = delete;
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VRAMManager& operator=(const VRAMManager&) = delete;
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mutable std::mutex mutex_;
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size_t textureVRAM_;
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size_t bufferVRAM_;
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size_t vramBudget_;
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// 统计
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uint32_t textureAllocCount_;
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uint32_t textureFreeCount_;
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uint32_t bufferAllocCount_;
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uint32_t bufferFreeCount_;
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size_t peakTextureVRAM_;
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size_t peakBufferVRAM_;
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};
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} // namespace extra2d
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