diff options
Diffstat (limited to 'src/gui/egl/qegl.cpp')
| -rw-r--r-- | src/gui/egl/qegl.cpp | 319 |
1 files changed, 272 insertions, 47 deletions
diff --git a/src/gui/egl/qegl.cpp b/src/gui/egl/qegl.cpp index 0ed95ea..485bfbf 100644 --- a/src/gui/egl/qegl.cpp +++ b/src/gui/egl/qegl.cpp @@ -43,7 +43,10 @@ #include <QtGui/qpixmap.h> #include <QtGui/qwidget.h> #include <QtCore/qdebug.h> + #include "qegl_p.h" +#include "qeglcontext_p.h" + QT_BEGIN_NAMESPACE @@ -54,8 +57,6 @@ QT_BEGIN_NAMESPACE static QEglContext * volatile currentGLContext = 0; static QEglContext * volatile currentVGContext = 0; -EGLDisplay QEglContext::dpy = EGL_NO_DISPLAY; - QEglContext::QEglContext() : apiType(QEgl::OpenGL) , ctx(EGL_NO_CONTEXT) @@ -87,15 +88,177 @@ bool QEglContext::isCurrent() const return current; } +EGLConfig QEgl::defaultConfig(int devType, API api, ConfigOptions options) +{ + if ( (devType != QInternal::Pixmap) && ((options & Renderable) == 0)) + qWarning("QEgl::defaultConfig() - Only configs for pixmaps make sense to be read-only!"); + + EGLConfig* targetConfig = 0; + + static EGLConfig defaultVGConfigs[] = { + QEGL_NO_CONFIG, // 0 Window Renderable Translucent + QEGL_NO_CONFIG, // 1 Window Renderable Opaque + QEGL_NO_CONFIG, // 2 Pixmap Renderable Translucent + QEGL_NO_CONFIG, // 3 Pixmap Renderable Opaque + QEGL_NO_CONFIG, // 4 Pixmap ReadOnly Translucent + QEGL_NO_CONFIG // 5 Pixmap ReadOnly Opaque + }; + if (api == OpenVG) { + if (devType == QInternal::Widget) { + if (options & Translucent) + targetConfig = &(defaultVGConfigs[0]); + else + targetConfig = &(defaultVGConfigs[1]); + } else if (devType == QInternal::Pixmap) { + if (options & Renderable) { + if (options & Translucent) + targetConfig = &(defaultVGConfigs[2]); + else // Opaque + targetConfig = &(defaultVGConfigs[3]); + } else { // Read-only + if (options & Translucent) + targetConfig = &(defaultVGConfigs[4]); + else // Opaque + targetConfig = &(defaultVGConfigs[5]); + } + } + } + + + static EGLConfig defaultGLConfigs[] = { + QEGL_NO_CONFIG, // 0 Window Renderable Translucent + QEGL_NO_CONFIG, // 1 Window Renderable Opaque + QEGL_NO_CONFIG, // 2 PBuffer Renderable Translucent + QEGL_NO_CONFIG, // 3 PBuffer Renderable Opaque + QEGL_NO_CONFIG, // 4 Pixmap Renderable Translucent + QEGL_NO_CONFIG, // 5 Pixmap Renderable Opaque + QEGL_NO_CONFIG, // 6 Pixmap ReadOnly Translucent + QEGL_NO_CONFIG // 7 Pixmap ReadOnly Opaque + }; + if (api == OpenGL) { + if (devType == QInternal::Widget) { + if (options & Translucent) + targetConfig = &(defaultGLConfigs[0]); + else // Opaque + targetConfig = &(defaultGLConfigs[1]); + } else if (devType == QInternal::Pbuffer) { + if (options & Translucent) + targetConfig = &(defaultGLConfigs[2]); + else // Opaque + targetConfig = &(defaultGLConfigs[3]); + } else if (devType == QInternal::Pixmap) { + if (options & Renderable) { + if (options & Translucent) + targetConfig = &(defaultGLConfigs[4]); + else // Opaque + targetConfig = &(defaultGLConfigs[5]); + } else { // ReadOnly + if (options & Translucent) + targetConfig = &(defaultGLConfigs[6]); + else // Opaque + targetConfig = &(defaultGLConfigs[7]); + } + } + } + + if (!targetConfig) { + qWarning("QEgl::defaultConfig() - No default config for device/api/options combo"); + return QEGL_NO_CONFIG; + } + if (*targetConfig != QEGL_NO_CONFIG) + return *targetConfig; + + + // We haven't found an EGL config for the target config yet, so do it now: + + + // Allow overriding from an environment variable: + QByteArray configId; + if (api == OpenVG) + configId = qgetenv("QT_VG_EGL_CONFIG"); + else + configId = qgetenv("QT_GL_EGL_CONFIG"); + if (!configId.isEmpty()) { + // Overriden, so get the EGLConfig for the specified config ID: + EGLint properties[] = { + EGL_CONFIG_ID, (EGLint)configId.toInt(), + EGL_NONE + }; + EGLint configCount = 0; + eglChooseConfig(display(), properties, targetConfig, 1, &configCount); + if (configCount > 0) + return *targetConfig; + qWarning() << "QEgl::defaultConfig() -" << configId << "appears to be invalid"; + } + + QEglProperties configAttribs; + configAttribs.setRenderableType(api); + + EGLint surfaceType; + switch (devType) { + case QInternal::Widget: + surfaceType = EGL_WINDOW_BIT; + break; + case QInternal::Pixmap: + surfaceType = EGL_PIXMAP_BIT; + break; + case QInternal::Pbuffer: + surfaceType = EGL_PBUFFER_BIT; + break; + default: + qWarning("QEgl::defaultConfig() - Can't create EGL surface for %d device type", devType); + return QEGL_NO_CONFIG; + }; +#ifdef EGL_VG_ALPHA_FORMAT_PRE_BIT + // For OpenVG, we try to create a surface using a pre-multiplied format if + // the surface needs to have an alpha channel: + if (api == OpenVG && (options & Translucent)) + surfaceType |= EGL_VG_ALPHA_FORMAT_PRE_BIT; +#endif + configAttribs.setValue(EGL_SURFACE_TYPE, surfaceType); + +#ifdef EGL_BIND_TO_TEXTURE_RGBA + if (devType == QInternal::Pixmap || devType == QInternal::Pbuffer) { + if (options & Translucent) + configAttribs.setValue(EGL_BIND_TO_TEXTURE_RGBA, EGL_TRUE); + else + configAttribs.setValue(EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE); + } +#endif + + // Add paint engine requirements + if (api == OpenVG) { +#ifndef QVG_SCISSOR_CLIP + configAttribs.setValue(EGL_ALPHA_MASK_SIZE, 1); +#endif + } else { + // Both OpenGL paint engines need to have stencil and sample buffers + configAttribs.setValue(EGL_STENCIL_SIZE, 1); + configAttribs.setValue(EGL_SAMPLE_BUFFERS, 1); +#ifndef QT_OPENGL_ES_2 + // Aditionally, the GL1 engine likes to have a depth buffer for clipping + configAttribs.setValue(EGL_DEPTH_SIZE, 1); +#endif + } + + if (options & Translucent) + configAttribs.setValue(EGL_ALPHA_SIZE, 1); + + *targetConfig = chooseConfig(&configAttribs, QEgl::BestPixelFormat); + return *targetConfig; +} + + // Choose a configuration that matches "properties". -bool QEglContext::chooseConfig - (const QEglProperties& properties, QEgl::PixelFormatMatch match) +EGLConfig QEgl::chooseConfig(const QEglProperties* properties, QEgl::PixelFormatMatch match) { - QEglProperties props(properties); + QEglProperties props(*properties); + EGLConfig cfg = QEGL_NO_CONFIG; do { // Get the number of matching configurations for this set of properties. EGLint matching = 0; - if (!eglChooseConfig(display(), props.properties(), 0, 0, &matching) || !matching) + EGLDisplay dpy = QEgl::display(); + if (!eglChooseConfig(dpy, props.properties(), 0, 0, &matching) || !matching) continue; // If we want the best pixel format, then return the first @@ -104,7 +267,7 @@ bool QEglContext::chooseConfig eglChooseConfig(display(), props.properties(), &cfg, 1, &matching); if (matching < 1) continue; - return true; + return cfg; } // Fetch all of the matching configurations and find the @@ -125,7 +288,7 @@ bool QEglContext::chooseConfig alpha == props.value(EGL_ALPHA_SIZE))) { cfg = configs[index]; delete [] configs; - return true; + return cfg; } } delete [] configs; @@ -142,11 +305,23 @@ bool QEglContext::chooseConfig qWarning() << "QEglContext::chooseConfig(): Could not find a suitable EGL configuration"; qWarning() << "Requested:" << props.toString(); qWarning() << "Available:"; - dumpAllConfigs(); + QEgl::dumpAllConfigs(); } - return false; + return QEGL_NO_CONFIG; +} + +bool QEglContext::chooseConfig(const QEglProperties& properties, QEgl::PixelFormatMatch match) +{ + cfg = QEgl::chooseConfig(&properties, match); + return cfg != QEGL_NO_CONFIG; +} + +EGLSurface QEglContext::createSurface(QPaintDevice* device, const QEglProperties *properties) +{ + return QEgl::createSurface(device, cfg, properties); } + // Create the EGLContext. bool QEglContext::createContext(QEglContext *shareContext, const QEglProperties *properties) { @@ -172,9 +347,9 @@ bool QEglContext::createContext(QEglContext *shareContext, const QEglProperties if (shareContext && shareContext->ctx == EGL_NO_CONTEXT) shareContext = 0; if (shareContext) { - ctx = eglCreateContext(display(), cfg, shareContext->ctx, contextProps.properties()); + ctx = eglCreateContext(QEgl::display(), cfg, shareContext->ctx, contextProps.properties()); if (ctx == EGL_NO_CONTEXT) { - qWarning() << "QEglContext::createContext(): Could not share context:" << errorString(eglGetError()); + qWarning() << "QEglContext::createContext(): Could not share context:" << QEgl::errorString(); shareContext = 0; } else { sharing = true; @@ -183,7 +358,7 @@ bool QEglContext::createContext(QEglContext *shareContext, const QEglProperties if (ctx == EGL_NO_CONTEXT) { ctx = eglCreateContext(display(), cfg, 0, contextProps.properties()); if (ctx == EGL_NO_CONTEXT) { - qWarning() << "QEglContext::createContext(): Unable to create EGL context:" << errorString(eglGetError()); + qWarning() << "QEglContext::createContext(): Unable to create EGL context:" << QEgl::errorString(); return false; } } @@ -240,9 +415,9 @@ bool QEglContext::makeCurrent(EGLSurface surface) eglBindAPI(EGL_OPENVG_API); #endif - bool ok = eglMakeCurrent(display(), surface, surface, ctx); + bool ok = eglMakeCurrent(QEgl::display(), surface, surface, ctx); if (!ok) - qWarning() << "QEglContext::makeCurrent():" << errorString(eglGetError()); + qWarning() << "QEglContext::makeCurrent():" << QEgl::errorString(); return ok; } @@ -269,9 +444,9 @@ bool QEglContext::doneCurrent() eglBindAPI(EGL_OPENVG_API); #endif - bool ok = eglMakeCurrent(display(), EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); + bool ok = eglMakeCurrent(QEgl::display(), EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); if (!ok) - qWarning() << "QEglContext::doneCurrent():" << errorString(eglGetError()); + qWarning() << "QEglContext::doneCurrent():" << QEgl::errorString(); return ok; } @@ -291,9 +466,9 @@ bool QEglContext::swapBuffers(EGLSurface surface) if(ctx == EGL_NO_CONTEXT) return false; - bool ok = eglSwapBuffers(display(), surface); + bool ok = eglSwapBuffers(QEgl::display(), surface); if (!ok) - qWarning() << "QEglContext::swapBuffers():" << errorString(eglGetError()); + qWarning() << "QEglContext::swapBuffers():" << QEgl::errorString(); return ok; } @@ -330,43 +505,43 @@ void QEglContext::waitClient() // Query the value of a configuration attribute. bool QEglContext::configAttrib(int name, EGLint *value) const { - return eglGetConfigAttrib(display(), cfg, name, value); + return eglGetConfigAttrib(QEgl::display(), cfg, name, value); } -// Retrieve all of the properties on "cfg". If zero, return -// the context's configuration. -QEglProperties QEglContext::configProperties(EGLConfig cfg) const +int QEglContext::configAttrib(int name) const { - if (!cfg) - cfg = config(); - QEglProperties props; - for (int name = 0x3020; name <= 0x304F; ++name) { - EGLint value; - if (name != EGL_NONE && eglGetConfigAttrib(display(), cfg, name, &value)) - props.setValue(name, value); - } - eglGetError(); // Clear the error state. - return props; + EGLint value; + EGLBoolean success = eglGetConfigAttrib(QEgl::display(), cfg, name, &value); + if (success) + return value; + else + return EGL_DONT_CARE; } -EGLDisplay QEglContext::display() +QEglProperties QEglContext::configProperties() const { + return QEglProperties(config()); +} + +EGLDisplay QEgl::display() +{ + static EGLDisplay dpy = EGL_NO_DISPLAY; static bool openedDisplay = false; if (!openedDisplay) { dpy = eglGetDisplay(nativeDisplay()); openedDisplay = true; if (dpy == EGL_NO_DISPLAY) { - qWarning("QEglContext::display(): Falling back to EGL_DEFAULT_DISPLAY"); + qWarning("QEgl::display(): Falling back to EGL_DEFAULT_DISPLAY"); dpy = eglGetDisplay(EGLNativeDisplayType(EGL_DEFAULT_DISPLAY)); } if (dpy == EGL_NO_DISPLAY) { - qWarning("QEglContext::display(): Can't even open the default display"); + qWarning("QEgl::display(): Can't even open the default display"); return EGL_NO_DISPLAY; } if (!eglInitialize(dpy, NULL, NULL)) { - qWarning() << "QEglContext::display(): Cannot initialize EGL display:" << errorString(eglGetError()); + qWarning() << "QEgl::display(): Cannot initialize EGL display:" << QEgl::errorString(); return EGL_NO_DISPLAY; } } @@ -374,15 +549,49 @@ EGLDisplay QEglContext::display() return dpy; } -#if !defined(Q_WS_X11) && !defined(Q_WS_WINCE) // WinCE & X11 implement this properly -EGLNativeDisplayType QEglContext::nativeDisplay() +#ifndef Q_WS_X11 +EGLSurface QEgl::createSurface(QPaintDevice *device, EGLConfig cfg, const QEglProperties *properties) { - return EGL_DEFAULT_DISPLAY; + // Create the native drawable for the paint device. + int devType = device->devType(); + EGLNativePixmapType pixmapDrawable = 0; + EGLNativeWindowType windowDrawable = 0; + bool ok; + if (devType == QInternal::Pixmap) { + pixmapDrawable = nativePixmap(static_cast<QPixmap *>(device)); + ok = (pixmapDrawable != 0); + } else if (devType == QInternal::Widget) { + windowDrawable = nativeWindow(static_cast<QWidget *>(device)); + ok = (windowDrawable != 0); + } else { + ok = false; + } + if (!ok) { + qWarning("QEglContext::createSurface(): Cannot create the native EGL drawable"); + return EGL_NO_SURFACE; + } + + // Create the EGL surface to draw into, based on the native drawable. + const int *props; + if (properties) + props = properties->properties(); + else + props = 0; + EGLSurface surf; + if (devType == QInternal::Widget) + surf = eglCreateWindowSurface(QEgl::display(), cfg, windowDrawable, props); + else + surf = eglCreatePixmapSurface(QEgl::display(), cfg, pixmapDrawable, props); + if (surf == EGL_NO_SURFACE) { + qWarning("QEglContext::createSurface(): Unable to create EGL surface, error = 0x%x", eglGetError()); + } + return surf; } #endif + // Return the error string associated with a specific code. -QString QEglContext::errorString(EGLint code) +QString QEgl::errorString(EGLint code) { static const char * const errors[] = { "Success (0x3000)", // No tr @@ -408,8 +617,24 @@ QString QEglContext::errorString(EGLint code) } } +QString QEgl::errorString() +{ + return errorString(error()); +} + +void QEgl::clearError() +{ + eglGetError(); +} + +EGLint QEgl::error() +{ + return eglGetError(); +} + + // Dump all of the EGL configurations supported by the system. -void QEglContext::dumpAllConfigs() +void QEgl::dumpAllConfigs() { QEglProperties props; EGLint count = 0; @@ -418,23 +643,23 @@ void QEglContext::dumpAllConfigs() EGLConfig *configs = new EGLConfig [count]; eglGetConfigs(display(), configs, count, &count); for (EGLint index = 0; index < count; ++index) { - props = configProperties(configs[index]); + props = QEglProperties(configs[index]); qWarning() << props.toString(); } delete [] configs; } -QString QEglContext::extensions() +QString QEgl::extensions() { - const char* exts = eglQueryString(QEglContext::display(), EGL_EXTENSIONS); + const char* exts = eglQueryString(QEgl::display(), EGL_EXTENSIONS); return QString(QLatin1String(exts)); } -bool QEglContext::hasExtension(const char* extensionName) +bool QEgl::hasExtension(const char* extensionName) { QList<QByteArray> extensions = QByteArray(reinterpret_cast<const char *> - (eglQueryString(QEglContext::display(), EGL_EXTENSIONS))).split(' '); + (eglQueryString(QEgl::display(), EGL_EXTENSIONS))).split(' '); return extensions.contains(extensionName); } |