Changeset 561 for trunk/src/opengl/qglpixelbuffer_egl.cpp

Timestamp:

Feb 11, 2010, 11:19:06 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/opengl/qglpixelbuffer_egl.cpp (modified) (12 diffs)

trunk/src/opengl/qglpixelbuffer_egl.cpp

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtOpenGL module of the Qt Toolkit.
@@ -21 +22 @@
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -48 +48 @@
 #include <private/qgl_p.h>
 
+#ifdef QT_OPENGL_ES_1_CL
+#include "qgl_cl_p.h"
+#endif
+
 QT_BEGIN_NAMESPACE
 
@@ -60 +64 @@
     // Create the EGL context.
     ctx = new QEglContext();
-    ctx->setApi(QEglContext::OpenGL);
+    ctx->setApi(QEgl::OpenGL);
 
     // Open the EGL display.
@@ -69 +73 @@
     }
 
+    // Find the shared context.
+    QEglContext *shareContext = 0;
+    if (shareWidget && shareWidget->d_func()->glcx)
+        shareContext = shareWidget->d_func()->glcx->d_func()->eglContext;
+
     // Choose an appropriate configuration.  We use the best format
     // we can find, even if it is greater than the requested format.
     // We try for a pbuffer that is capable of texture rendering if possible.
-    QEglProperties configProps;
-    qt_egl_set_format(configProps, QInternal::Pbuffer, f);
-    configProps.setRenderableType(ctx->api());
-    bool ok = false;
-#if QGL_RENDER_TEXTURE
-    textureFormat = EGL_TEXTURE_RGBA;
-    configProps.setValue(EGL_BIND_TO_TEXTURE_RGBA, EGL_TRUE);
-    ok = ctx->chooseConfig(configProps, QEglContext::BestPixelFormat);
-    if (!ok) {
-        // Try again with RGB texture rendering.
-        textureFormat = EGL_TEXTURE_RGB;
-        configProps.removeValue(EGL_BIND_TO_TEXTURE_RGBA);
-        configProps.setValue(EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE);
-        ok = ctx->chooseConfig(configProps, QEglContext::BestPixelFormat);
+    textureFormat = EGL_NONE;
+    if (shareContext) {
+        // Use the same configuration as the widget we are sharing with.
+        ctx->setConfig(shareContext->config());
+#if QGL_RENDER_TEXTURE
+        EGLint value = EGL_FALSE;
+        if (ctx->configAttrib(EGL_BIND_TO_TEXTURE_RGBA, &value) && value)
+            textureFormat = EGL_TEXTURE_RGBA;
+        else if (ctx->configAttrib(EGL_BIND_TO_TEXTURE_RGB, &value) && value)
+            textureFormat = EGL_TEXTURE_RGB;
+#endif
+    } else {
+        QEglProperties configProps;
+        qt_egl_set_format(configProps, QInternal::Pbuffer, f);
+        configProps.setRenderableType(ctx->api());
+        bool ok = false;
+#if QGL_RENDER_TEXTURE
+        textureFormat = EGL_TEXTURE_RGBA;
+        configProps.setValue(EGL_BIND_TO_TEXTURE_RGBA, EGL_TRUE);
+        ok = ctx->chooseConfig(configProps, QEgl::BestPixelFormat);
         if (!ok) {
-            // One last try for a pbuffer with no texture rendering.
-            configProps.removeValue(EGL_BIND_TO_TEXTURE_RGB);
-            textureFormat = EGL_NONE;
+            // Try again with RGB texture rendering.
+            textureFormat = EGL_TEXTURE_RGB;
+            configProps.removeValue(EGL_BIND_TO_TEXTURE_RGBA);
+            configProps.setValue(EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE);
+            ok = ctx->chooseConfig(configProps, QEgl::BestPixelFormat);
+            if (!ok) {
+                // One last try for a pbuffer with no texture rendering.
+                configProps.removeValue(EGL_BIND_TO_TEXTURE_RGB);
+                textureFormat = EGL_NONE;
+            }
         }
-    }
-#else
-    textureFormat = EGL_NONE;
-#endif
-    if (!ok) {
-        if (!ctx->chooseConfig(configProps, QEglContext::BestPixelFormat)) {
-            delete ctx;
-            ctx = 0;
-            return false;
+#endif
+        if (!ok) {
+            if (!ctx->chooseConfig(configProps, QEgl::BestPixelFormat)) {
+                delete ctx;
+                ctx = 0;
+                return false;
+            }
         }
     }
@@ -132 +152 @@
         return false;
     }
-    ctx->setSurface(pbuf);
 
     // Create a new context for the configuration.
-    QEglContext *shareContext = 0;
-    if (shareWidget && shareWidget->d_func()->glcx)
-        shareContext = shareWidget->d_func()->glcx->d_func()->eglContext;
     if (!ctx->createContext(shareContext)) {
         delete ctx;
@@ -149 +165 @@
 bool QGLPixelBufferPrivate::cleanup()
 {
-    eglDestroySurface(QEglContext::defaultDisplay(0), pbuf);
+    // No need to destroy "pbuf" here - it is done in QGLContext::reset().
     return true;
 }
@@ -160 +176 @@
         return false;
     glBindTexture(GL_TEXTURE_2D, texture_id);
-    return eglBindTexImage(d->ctx->display(), d->ctx->surface(), EGL_BACK_BUFFER);
+    return eglBindTexImage(d->ctx->display(), d->pbuf, EGL_BACK_BUFFER);
 #else
     Q_UNUSED(texture_id);
@@ -173 +189 @@
     if (d->invalid || d->textureFormat == EGL_NONE || !d->ctx)
         return;
-    eglReleaseTexImage(d->ctx->display(), d->ctx->surface(), EGL_BACK_BUFFER);
+    eglReleaseTexImage(d->ctx->display(), d->pbuf, EGL_BACK_BUFFER);
 #endif
 }
@@ -189 +205 @@
     else
         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, d->req_size.width(), d->req_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     return texture;
 #else
@@ -200 +216 @@
 {
     // See if we have at least 1 configuration that matches the default format.
-    QEglContext ctx;
-    if (!ctx.openDisplay(0))
+    EGLDisplay dpy = QEglContext::defaultDisplay(0);
+    if (dpy == EGL_NO_DISPLAY)
         return false;
     QEglProperties configProps;
     qt_egl_set_format(configProps, QInternal::Pbuffer, QGLFormat::defaultFormat());
-    configProps.setRenderableType(QEglContext::OpenGL);
-    return ctx.chooseConfig(configProps);
+    configProps.setRenderableType(QEgl::OpenGL);
+    do {
+        EGLConfig cfg = 0;
+        EGLint matching = 0;
+        if (eglChooseConfig(dpy, configProps.properties(),
+                            &cfg, 1, &matching) && matching > 0)
+            return true;
+    } while (configProps.reduceConfiguration());
+    return false;
 }