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| |
| #ifndef QOPENGLPROGRAMBINARYCACHE_P_H |
| #define QOPENGLPROGRAMBINARYCACHE_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtGui/qtguiglobal.h> |
| #include <QtCore/qcache.h> |
| #include <QtCore/qmutex.h> |
| #include <QtGui/private/qopenglcontext_p.h> |
| #include <QtGui/private/qshader_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| // These classes are also used by the OpenGL backend of QRhi. They must |
| // therefore stay independent from QOpenGLShader(Program). Must rely only on |
| // QOpenGLContext/Functions. |
| |
| class QOpenGLProgramBinaryCache |
| { |
| public: |
| struct ShaderDesc { |
| ShaderDesc() { } |
| ShaderDesc(QShader::Stage stage, const QByteArray &source = QByteArray()) |
| : stage(stage), source(source) |
| { } |
| QShader::Stage stage; |
| QByteArray source; |
| }; |
| struct ProgramDesc { |
| QVector<ShaderDesc> shaders; |
| QByteArray cacheKey() const; |
| }; |
| |
| QOpenGLProgramBinaryCache(); |
| |
| bool load(const QByteArray &cacheKey, uint programId); |
| void save(const QByteArray &cacheKey, uint programId); |
| |
| private: |
| QString cacheFileName(const QByteArray &cacheKey) const; |
| bool verifyHeader(const QByteArray &buf) const; |
| bool setProgramBinary(uint programId, uint blobFormat, const void *p, uint blobSize); |
| |
| QString m_cacheDir; |
| bool m_cacheWritable; |
| struct MemCacheEntry { |
| MemCacheEntry(const void *p, int size, uint format) |
| : blob(reinterpret_cast<const char *>(p), size), |
| format(format) |
| { } |
| QByteArray blob; |
| uint format; |
| }; |
| QCache<QByteArray, MemCacheEntry> m_memCache; |
| #if defined(QT_OPENGL_ES_2) |
| void (QOPENGLF_APIENTRYP programBinaryOES)(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLsizei length); |
| void (QOPENGLF_APIENTRYP getProgramBinaryOES)(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary); |
| void initializeProgramBinaryOES(QOpenGLContext *context); |
| bool m_programBinaryOESInitialized = false; |
| #endif |
| QMutex m_mutex; |
| }; |
| |
| // While unlikely, one application can in theory use contexts with different versions |
| // or profiles. Therefore any version- or extension-specific checks must be done on a |
| // per-context basis, not just once per process. QOpenGLSharedResource enables this, |
| // although it's once-per-sharing-context-group, not per-context. Still, this should |
| // be good enough in practice. |
| class QOpenGLProgramBinarySupportCheck : public QOpenGLSharedResource |
| { |
| public: |
| QOpenGLProgramBinarySupportCheck(QOpenGLContext *context); |
| void invalidateResource() override { } |
| void freeResource(QOpenGLContext *) override { } |
| |
| bool isSupported() const { return m_supported; } |
| |
| private: |
| bool m_supported; |
| }; |
| |
| class QOpenGLProgramBinarySupportCheckWrapper |
| { |
| public: |
| QOpenGLProgramBinarySupportCheck *get(QOpenGLContext *context) |
| { |
| return m_resource.value<QOpenGLProgramBinarySupportCheck>(context); |
| } |
| |
| private: |
| QOpenGLMultiGroupSharedResource m_resource; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |