Changeset 846 for trunk/src/openvg/qpixmapdata_vg.cpp

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/openvg/qpixmapdata_vg.cpp (modified) (8 diffs)

trunk/src/openvg/qpixmapdata_vg.cpp

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -43 +43 @@
 #include "qpaintengine_vg_p.h"
 #include <QtGui/private/qdrawhelper_p.h>
+#if !defined(QT_NO_EGL)
+#include <QtGui/private/qegl_p.h>
+#endif
 #include "qvg_p.h"
 #include "qvgimagepool_p.h"
-
-#if defined(Q_OS_SYMBIAN)
-#include <private/qt_s60_p.h>
-#include <fbs.h>
-#endif
-#ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
-#include <sgresource/sgimage.h>
-typedef EGLImageKHR (*pfnEglCreateImageKHR)(EGLDisplay, EGLContext, EGLenum, EGLClientBuffer, EGLint*);
-typedef EGLBoolean (*pfnEglDestroyImageKHR)(EGLDisplay, EGLImageKHR);
-typedef VGImage (*pfnVgCreateEGLImageTargetKHR)(VGeglImageKHR);
-#endif // QT_SYMBIAN_SUPPORTS_SGIMAGE
+#include <QBuffer>
+#include <QImageReader>
+#include <QtGui/private/qimage_p.h>
 
 QT_BEGIN_NAMESPACE
@@ -71 +66 @@
     inImagePool = false;
     inLRU = false;
+    failedToAlloc = false;
 #if !defined(QT_NO_EGL)
     context = 0;
@@ -161 +157 @@
         (const QImage &image, Qt::ImageConversionFlags flags)
 {
+    if(image.isNull())
+        return;
+
+    QImage img = image;
+    createPixmapForImage(img, flags, false);
+}
+
+void QVGPixmapData::fromImageReader(QImageReader *imageReader,
+                                 Qt::ImageConversionFlags flags)
+{
+    QImage image = imageReader->read();
+    if (image.isNull())
+        return;
+
+    createPixmapForImage(image, flags, true);
+}
+
+bool QVGPixmapData::fromFile(const QString &filename, const char *format,
+                          Qt::ImageConversionFlags flags)
+{
+    QImage image = QImageReader(filename, format).read();
+    if (image.isNull())
+        return false;
+
+    createPixmapForImage(image, flags, true);
+
+    return !isNull();
+}
+
+bool QVGPixmapData::fromData(const uchar *buffer, uint len, const char *format,
+                      Qt::ImageConversionFlags flags)
+{
+    QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(buffer), len);
+    QBuffer b(&a);
+    b.open(QIODevice::ReadOnly);
+    QImage image = QImageReader(&b, format).read();
+    if (image.isNull())
+        return false;
+
+    createPixmapForImage(image, flags, true);
+
+    return !isNull();
+}
+
+/*!
+    out-of-place conversion (inPlace == false) will always detach()
+ */
+void QVGPixmapData::createPixmapForImage(QImage &image, Qt::ImageConversionFlags flags, bool inPlace)
+{
     if (image.size() == QSize(w, h))
         setSerialNumber(++qt_vg_pixmap_serial);
     else
         resize(image.width(), image.height());
-    source = image.convertToFormat(sourceFormat(), flags);
+
+    QImage::Format format = sourceFormat();
+    int d = image.depth();
+    if (d == 1 || d == 16 || d == 24 || (d == 32 && !image.hasAlphaChannel()))
+        format = QImage::Format_RGB32;
+    else if (!(flags & Qt::NoOpaqueDetection) && const_cast<QImage &>(image).data_ptr()->checkForAlphaPixels())
+        format = sourceFormat();
+    else
+        format = image.hasAlphaChannel() ? sourceFormat() : QImage::Format_RGB32;
+
+    if (inPlace && image.data_ptr()->convertInPlace(format, flags)) {
+        source = image;
+    } else {
+        source = image.convertToFormat(format);
+
+        // convertToFormat won't detach the image if format stays the same.
+        if (image.format() == format)
+            source.detach();
+    }
+
     recreate = true;
 }
@@ -234 +298 @@
 }
 
-// This function works around QImage::bits() making a deep copy if the
-// QImage is not const.  We force it to be const and then get the bits.
-// XXX: Should add a QImage::constBits() in the future to replace this.
-const uchar *qt_vg_imageBits(const QImage& image)
-{
-    return image.bits();
-}
-
 VGImage QVGPixmapData::toVGImage()
 {
-    if (!isValid())
+    if (!isValid() || failedToAlloc)
         return VG_INVALID_HANDLE;
 
@@ -260 +316 @@
     if (vgImage == VG_INVALID_HANDLE) {
         vgImage = QVGImagePool::instance()->createImageForPixmap
-            (VG_sARGB_8888_PRE, w, h, VG_IMAGE_QUALITY_FASTER, this);
+            (qt_vg_image_to_vg_format(source.format()), w, h, VG_IMAGE_QUALITY_FASTER, this);
 
         // Bail out if we run out of GPU memory - try again next time.
-        if (vgImage == VG_INVALID_HANDLE)
+        if (vgImage == VG_INVALID_HANDLE) {
+            failedToAlloc = true;
             return VG_INVALID_HANDLE;
+        }
 
         inImagePool = true;
@@ -274 +332 @@
         vgImageSubData
             (vgImage,
-             qt_vg_imageBits(source), source.bytesPerLine(),
-             VG_sARGB_8888_PRE, 0, 0, w, h);
+             source.constBits(), source.bytesPerLine(),
+             qt_vg_image_to_vg_format(source.format()), 0, 0, w, h);
     }
 
@@ -429 +487 @@
 }
 
-#if defined(Q_OS_SYMBIAN)
-
-static CFbsBitmap* createBlitCopy(CFbsBitmap* bitmap)
-{
-      CFbsBitmap *copy = q_check_ptr(new CFbsBitmap);
-      if(!copy)
-        return 0;
-
-      if (copy->Create(bitmap->SizeInPixels(), bitmap->DisplayMode()) != KErrNone) {
-          delete copy;
-          copy = 0;
-
-          return 0;
-      }
-
-      CFbsBitmapDevice* bitmapDevice = 0;
-      CFbsBitGc *bitmapGc = 0;
-      QT_TRAP_THROWING(bitmapDevice = CFbsBitmapDevice::NewL(copy));
-      QT_TRAP_THROWING(bitmapGc = CFbsBitGc::NewL());
-      bitmapGc->Activate(bitmapDevice);
-
-      bitmapGc->BitBlt(TPoint(), bitmap);
-
-      delete bitmapGc;
-      delete bitmapDevice;
-
-      return copy;
-}
-
-void QVGPixmapData::cleanup()
-{
-    is_null = w = h = 0;
-    recreate = false;
-    source = QImage();
-}
-
-void QVGPixmapData::fromNativeType(void* pixmap, NativeType type)
-{
-    if (type == QPixmapData::SgImage && pixmap) {
-#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
-        RSgImage *sgImage = reinterpret_cast<RSgImage*>(pixmap);
-
-        destroyImages();
-        prevSize = QSize();
-
-        TInt err = 0;
-
-        RSgDriver driver;
-        err = driver.Open();
-        if (err != KErrNone) {
-            cleanup();
-            return;
-        }
-
-        if (sgImage->IsNull()) {
-            cleanup();
-            driver.Close();
-            return;
-        }
-
-        TSgImageInfo sgImageInfo;
-        err = sgImage->GetInfo(sgImageInfo);
-        if (err != KErrNone) {
-            cleanup();
-            driver.Close();
-            return;
-        }
-
-        pfnEglCreateImageKHR eglCreateImageKHR = (pfnEglCreateImageKHR) eglGetProcAddress("eglCreateImageKHR");
-        pfnEglDestroyImageKHR eglDestroyImageKHR = (pfnEglDestroyImageKHR) eglGetProcAddress("eglDestroyImageKHR");
-        pfnVgCreateEGLImageTargetKHR vgCreateEGLImageTargetKHR = (pfnVgCreateEGLImageTargetKHR) eglGetProcAddress("vgCreateEGLImageTargetKHR");
-
-        if (eglGetError() != EGL_SUCCESS || !eglCreateImageKHR || !eglDestroyImageKHR || !vgCreateEGLImageTargetKHR) {
-            cleanup();
-            driver.Close();
-            return;
-        }
-
-        const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
-        EGLImageKHR eglImage = eglCreateImageKHR(QEglContext::display(),
-                EGL_NO_CONTEXT,
-                EGL_NATIVE_PIXMAP_KHR,
-                (EGLClientBuffer)sgImage,
-                (EGLint*)KEglImageAttribs);
-
-        if (eglGetError() != EGL_SUCCESS) {
-            cleanup();
-            driver.Close();
-            return;
-        }
-
-        vgImage = vgCreateEGLImageTargetKHR(eglImage);
-        if (vgGetError() != VG_NO_ERROR) {
-            cleanup();
-            eglDestroyImageKHR(QEglContext::display(), eglImage);
-            driver.Close();
-            return;
-        }
-
-        w = sgImageInfo.iSizeInPixels.iWidth;
-        h = sgImageInfo.iSizeInPixels.iHeight;
-        d = 32; // We always use ARGB_Premultiplied for VG pixmaps.
-        is_null = (w <= 0 || h <= 0);
-        source = QImage();
-        recreate = false;
-        prevSize = QSize(w, h);
-        setSerialNumber(++qt_vg_pixmap_serial);
-        // release stuff
-        eglDestroyImageKHR(QEglContext::display(), eglImage);
-        driver.Close();
-#endif
-    } else if (type == QPixmapData::FbsBitmap) {
-        CFbsBitmap *bitmap = reinterpret_cast<CFbsBitmap*>(pixmap);
-
-        bool deleteSourceBitmap = false;
-
-#ifdef Q_SYMBIAN_HAS_EXTENDED_BITMAP_TYPE
-
-        // Rasterize extended bitmaps
-
-        TUid extendedBitmapType = bitmap->ExtendedBitmapType();
-        if (extendedBitmapType != KNullUid) {
-            bitmap = createBlitCopy(bitmap);
-            deleteSourceBitmap = true;
-        }
-#endif
-
-        if (bitmap->IsCompressedInRAM()) {
-            bitmap = createBlitCopy(bitmap);
-            deleteSourceBitmap = true;
-        }
-
-        TDisplayMode displayMode = bitmap->DisplayMode();
-        QImage::Format format = qt_TDisplayMode2Format(displayMode);
-
-        TSize size = bitmap->SizeInPixels();
-
-        bitmap->BeginDataAccess();
-        uchar *bytes = (uchar*)bitmap->DataAddress();
-        QImage img = QImage(bytes, size.iWidth, size.iHeight, format);
-        img = img.copy();
-        bitmap->EndDataAccess();
-
-        if(displayMode == EGray2) {
-            //Symbian thinks set pixels are white/transparent, Qt thinks they are foreground/solid
-            //So invert mono bitmaps so that masks work correctly.
-            img.invertPixels();
-        } else if(displayMode == EColor16M) {
-            img = img.rgbSwapped(); // EColor16M is BGR
-        }
-
-        fromImage(img, Qt::AutoColor);
-
-        if(deleteSourceBitmap)
-            delete bitmap;
-    }
-}
-
-void* QVGPixmapData::toNativeType(NativeType type)
-{
-    if (type == QPixmapData::SgImage) {
-#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
-        toVGImage();
-
-        if (!isValid() || vgImage == VG_INVALID_HANDLE)
-            return 0;
-
-        TInt err = 0;
-
-        RSgDriver driver;
-        err = driver.Open();
-        if (err != KErrNone)
-            return 0;
-
-        TSgImageInfo sgInfo;
-        sgInfo.iPixelFormat = EUidPixelFormatARGB_8888_PRE;
-        sgInfo.iSizeInPixels.SetSize(w, h);
-        sgInfo.iUsage = ESgUsageBitOpenVgImage | ESgUsageBitOpenVgSurface;
-
-        RSgImage *sgImage = q_check_ptr(new RSgImage());
-        err = sgImage->Create(sgInfo, NULL, NULL);
-        if (err != KErrNone) {
-            driver.Close();
-            return 0;
-        }
-
-        pfnEglCreateImageKHR eglCreateImageKHR = (pfnEglCreateImageKHR) eglGetProcAddress("eglCreateImageKHR");
-        pfnEglDestroyImageKHR eglDestroyImageKHR = (pfnEglDestroyImageKHR) eglGetProcAddress("eglDestroyImageKHR");
-        pfnVgCreateEGLImageTargetKHR vgCreateEGLImageTargetKHR = (pfnVgCreateEGLImageTargetKHR) eglGetProcAddress("vgCreateEGLImageTargetKHR");
-
-        if (eglGetError() != EGL_SUCCESS || !eglCreateImageKHR || !eglDestroyImageKHR || !vgCreateEGLImageTargetKHR) {
-            driver.Close();
-            return 0;
-        }
-
-        const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
-        EGLImageKHR eglImage = eglCreateImageKHR(QEglContext::display(),
-                EGL_NO_CONTEXT,
-                EGL_NATIVE_PIXMAP_KHR,
-                (EGLClientBuffer)sgImage,
-                (EGLint*)KEglImageAttribs);
-        if (eglGetError() != EGL_SUCCESS) {
-            sgImage->Close();
-            driver.Close();
-            return 0;
-        }
-
-        VGImage dstVgImage = vgCreateEGLImageTargetKHR(eglImage);
-        if (vgGetError() != VG_NO_ERROR) {
-            eglDestroyImageKHR(QEglContext::display(), eglImage);
-            sgImage->Close();
-            driver.Close();
-            return 0;
-        }
-
-        vgCopyImage(dstVgImage, 0, 0,
-                vgImage, 0, 0,
-                w, h, VG_FALSE);
-
-        if (vgGetError() != VG_NO_ERROR) {
-            sgImage->Close();
-            sgImage = 0;
-        }
-        // release stuff
-        vgDestroyImage(dstVgImage);
-        eglDestroyImageKHR(QEglContext::display(), eglImage);
-        driver.Close();
-        return reinterpret_cast<void*>(sgImage);
-#endif
-    } else if (type == QPixmapData::FbsBitmap) {
-        CFbsBitmap *bitmap = q_check_ptr(new CFbsBitmap);
-
-        if (bitmap) {
-            if (bitmap->Create(TSize(source.width(), source.height()),
-                              EColor16MAP) == KErrNone) {
-                const uchar *sptr = qt_vg_imageBits(source);
-                bitmap->BeginDataAccess();
-
-                uchar *dptr = (uchar*)bitmap->DataAddress();
-                Mem::Copy(dptr, sptr, source.byteCount());
-
-                bitmap->EndDataAccess();
-            } else {
-                delete bitmap;
-                bitmap = 0;
-            }
-        }
-
-        return reinterpret_cast<void*>(bitmap);
-    }
-    return 0;
-}
-#endif //Q_OS_SYMBIAN
-
 QT_END_NAMESPACE