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| |
| #ifndef QMEDIAOPENGLHELPER_P_H |
| #define QMEDIAOPENGLHELPER_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/QOpenGLContext> |
| |
| #if defined(Q_OS_WIN) && !defined(Q_OS_WINRT) && (defined(QT_OPENGL_ES_2) || defined(QT_OPENGL_DYNAMIC)) |
| #include <EGL/egl.h> |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QMediaOpenGLHelper |
| { |
| public: |
| static bool isANGLE(); |
| }; |
| |
| inline bool QMediaOpenGLHelper::isANGLE() |
| { |
| #ifdef Q_OS_WINRT |
| return true; |
| #else |
| bool isANGLE = false; |
| |
| # if defined(Q_OS_WIN) && (defined(QT_OPENGL_ES_2) || defined(QT_OPENGL_DYNAMIC)) |
| if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES) { |
| // Although unlikely, technically LibGLES could mean a non-ANGLE EGL/GLES2 implementation too. |
| // Verify that it is indeed ANGLE. |
| # ifdef QT_OPENGL_ES_2_ANGLE_STATIC |
| // ANGLE linked-in statically. |
| isANGLE = true; |
| # else |
| // Qt configured with either -opengl es2 or -opengl desktop. |
| # ifdef QT_DEBUG |
| HMODULE eglHandle = LoadLibraryW(L"libEGLd.dll"); |
| # else |
| HMODULE eglHandle = LoadLibraryW(L"libEGL.dll"); |
| # endif // QT_DEBUG |
| if (eglHandle) { |
| typedef EGLDisplay (EGLAPIENTRYP EglGetDisplay)(EGLNativeDisplayType display_id); |
| typedef EGLBoolean (EGLAPIENTRYP EglInitialize)(EGLDisplay dpy, EGLint *major, EGLint *minor); |
| typedef const char * (EGLAPIENTRYP EglQueryString)(EGLDisplay dpy, EGLint name); |
| EglGetDisplay eglGetDisplay = (EglGetDisplay) GetProcAddress(eglHandle, "eglGetDisplay"); |
| EglInitialize eglInitialize = (EglInitialize) GetProcAddress(eglHandle, "eglInitialize"); |
| EglQueryString eglQueryString = (EglQueryString) GetProcAddress(eglHandle, "eglQueryString"); |
| if (eglGetDisplay && eglInitialize && eglQueryString) { |
| // EGL may not be initialized at this stage. |
| EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| eglInitialize(dpy, 0, 0); |
| const char *vendorStr = eglQueryString(dpy, EGL_VERSION); |
| isANGLE = vendorStr && strstr(vendorStr, "ANGLE"); |
| } |
| } |
| # endif // QT_OPENGL_ES_2_ANGLE_STATIC |
| |
| } |
| # endif // Q_OS_WIN && (QT_OPENGL_ES_2 || QT_OPENGL_DYNAMIC) |
| |
| return isANGLE; |
| #endif // Q_OS_WINRT |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif |