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e9ac4d53a6
GLES3 spec is worthless and only returns a boolean result for occlusion queries. This is fine for simple cellular games but we need more than a boolean result. Thankfully Nvidia exposes GL_NV_occlusion_queries under a OpenGL ES extension, which allows us to get full samples rendered. The only device this change affects is the Nexus 9, since it is an Nvidia K1 crippled to only support OpenGL ES. No other OpenGL ES device that I know of supports this extension.
87 lines
1.6 KiB
C++
87 lines
1.6 KiB
C++
#pragma once
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#include <array>
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#include <memory>
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#include "VideoBackends/OGL/GLExtensions/GLExtensions.h"
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#include "VideoCommon/PerfQueryBase.h"
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namespace OGL
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{
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PerfQueryBase* GetPerfQuery();
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class PerfQuery : public PerfQueryBase
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{
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public:
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PerfQuery();
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~PerfQuery() {}
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void EnableQuery(PerfQueryGroup type) override;
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void DisableQuery(PerfQueryGroup type) override;
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void ResetQuery() override;
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u32 GetQueryResult(PerfQueryType type) override;
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void FlushResults() override;
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bool IsFlushed() const override;
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protected:
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struct ActiveQuery
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{
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GLuint query_id;
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PerfQueryGroup query_type;
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};
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// when testing in SMS: 64 was too small, 128 was ok
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static const u32 PERF_QUERY_BUFFER_SIZE = 512;
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// This contains gl query objects with unretrieved results.
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std::array<ActiveQuery, PERF_QUERY_BUFFER_SIZE> m_query_buffer;
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u32 m_query_read_pos;
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// TODO: sloppy
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volatile u32 m_query_count;
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volatile u32 m_results[PQG_NUM_MEMBERS];
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private:
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// Implementation
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std::unique_ptr<PerfQuery> m_query;
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};
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// Implementations
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class PerfQueryGL : public PerfQuery
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{
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public:
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PerfQueryGL(GLenum query_type);
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~PerfQueryGL();
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void EnableQuery(PerfQueryGroup type) override;
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void DisableQuery(PerfQueryGroup type) override;
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void FlushResults() override;
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private:
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void WeakFlush();
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// Only use when non-empty
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void FlushOne();
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GLenum m_query_type;
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};
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class PerfQueryGLESNV : public PerfQuery
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{
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public:
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PerfQueryGLESNV();
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~PerfQueryGLESNV();
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void EnableQuery(PerfQueryGroup type) override;
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void DisableQuery(PerfQueryGroup type) override;
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void FlushResults() override;
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private:
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void WeakFlush();
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// Only use when non-empty
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void FlushOne();
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};
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} // namespace
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