retrace: Implement glxCopySubBufferMESA

[apitrace] / gui / imageviewer.cpp

diff --git a/gui/imageviewer.cpp b/gui/imageviewer.cpp
index cd034138f9aaa52ce79dc58b4aa638a24171293e..867fa61a48cf31ed540616ca8b03b4b5e630ee30 100644 (file)
--- a/gui/imageviewer.cpp
+++ b/gui/imageviewer.cpp
@@ -1,5 +1,8 @@
 #include "imageviewer.h"
 #include "pixelwidget.h"
+#include "apisurface.h"
+
+#include "image/image.hpp"
 
 #include <QDebug>
 #include <QDesktopWidget>
@@ -8,7 +11,8 @@
 #include <QScrollBar>
 
 ImageViewer::ImageViewer(QWidget *parent)
-    : QDialog(parent)
+    : QDialog(parent),
+      m_image(0)
 {
     setupUi(this);
 
@@ -52,28 +56,24 @@ ImageViewer::ImageViewer(QWidget *parent)
             this, SLOT(showGrid(const QRect &)));
 }
 
-void ImageViewer::setImage(const QImage &image)
+ImageViewer::~ImageViewer()
 {
-    m_image = image;
-    m_temp = m_image;
-    m_pixelWidget->setSurface(m_image);
-    updateGeometry();
+    delete m_image;
 }
 
-static inline int clamp(int x)
+void ImageViewer::setBase64Data(const QByteArray &base64)
 {
-    if (x <= 0) {
-        return 0;
-    }
-    if (x > 255) {
-        return 255;
-    }
-    return x;
+    delete m_image;
+    m_image = ApiSurface::imageFromBase64(base64);
+    m_convertedImage = ApiSurface::qimageFromRawImage(m_image);
+    m_pixelWidget->setSurface(m_convertedImage);
+    updateGeometry();
 }
 
 void ImageViewer::slotUpdate()
 {
-    m_temp = m_image.mirrored(false, flipCheckBox->isChecked());
+    m_convertedImage =
+        m_convertedImage.mirrored(false, flipCheckBox->isChecked());
 
     double lowerValue = lowerSpinBox->value();
     double upperValue = upperSpinBox->value();
@@ -81,53 +81,15 @@ void ImageViewer::slotUpdate()
     bool opaque = opaqueCheckBox->isChecked();
     bool alpha  = alphaCheckBox->isChecked();
 
-    if (lowerValue != 0.0 || upperValue != 1.0 || opaque || alpha) {
-        /*
-         * Rescale the image.
-         *
-         * XXX: This would be much more useful if done with the full precision
-         * of the original image
-         */
-
-        int offset = - lowerValue * 255;
-        int scale = 256 / (upperValue - lowerValue);
-
-        m_temp = m_temp.convertToFormat(QImage::Format_ARGB32);
-
-        if (0) {
-            qDebug()
-                << "offset = " << offset << "\n"
-                << "scale = " << scale << "\n";
-        }
-
-        int width = m_temp.width();
-        int height = m_temp.height();
-
-        int aMask = opaque ? 0xff : 0;
-
-        for (int y = 0; y < height; ++y) {
-            QRgb *scanline = (QRgb *)m_temp.scanLine(y);
-            for (int x = 0; x < width; ++x) {
-                QRgb pixel = scanline[x];
-                int r = qRed(pixel);
-                int g = qGreen(pixel);
-                int b = qBlue(pixel);
-                int a = qAlpha(pixel);
-                if (alpha) {
-                    a = clamp(((a + offset) * scale) >> 8);
-                    scanline[x] = qRgba(a, a, a, 0xff);
-                } else {
-                    r = clamp(((r + offset) * scale) >> 8);
-                    g = clamp(((g + offset) * scale) >> 8);
-                    b = clamp(((b + offset) * scale) >> 8);
-                    a |= aMask;
-                    scanline[x] = qRgba(r, g, b, a);
-                }
-            }
-        }
+    m_convertedImage = ApiSurface::qimageFromRawImage(m_image,
+                                                      lowerValue, upperValue,
+                                                      opaque, alpha);
+
+    if (flipCheckBox->isChecked()) {
+        m_convertedImage = m_convertedImage.mirrored(false, true);
     }
 
-    m_pixelWidget->setSurface(m_temp);
+    m_pixelWidget->setSurface(m_convertedImage);
 
     updateGeometry();
 }
@@ -140,8 +102,8 @@ QSize ImageViewer::sizeHint() const
                 scrollArea->verticalScrollBar()->width() : 0;
     int hScrollHeight = scrollArea->horizontalScrollBar() ?
                 scrollArea->horizontalScrollBar()->height() : 0;
-    QSize optimalWindowSize(m_image.width() + vScrollWidth,
-                            m_image.height() + hScrollHeight);
+    QSize optimalWindowSize(m_convertedImage.width() + vScrollWidth,
+                            m_convertedImage.height() + hScrollHeight);
 
     QRect screenRect = QApplication::desktop()->availableGeometry();
     const float maxPercentOfDesktopSpace = 0.8f;
@@ -157,16 +119,50 @@ void ImageViewer::resizeEvent(QResizeEvent *e)
     QWidget::resizeEvent(e);
 }
 
+template <class T>
+QString createPixelLabel(image::Image *img, int x, int y)
+{
+    QString pixelLabel;
+    unsigned char *pixelLocation = 0;
+    T *pixel;
+
+    pixelLocation = img->pixels + img->stride() * y;
+    pixelLocation += x * img->bytesPerPixel;
+    pixel = ((T*)pixelLocation);
+
+    pixelLabel += QLatin1String("[");
+    pixelLabel += QString::fromLatin1("%1").arg(pixel[0]);
+
+    for (int channel = 1; channel < img->channels; ++channel) {
+        pixelLabel += QString::fromLatin1(", %1").arg(pixel[channel]);
+    }
+    pixelLabel += QLatin1String("]");
+
+    return pixelLabel;
+}
+
 void ImageViewer::showPixel(int x, int y)
 {
     xSpinBox->setValue(x);
     ySpinBox->setValue(y);
-    QColor clr = m_pixelWidget->colorAtCurrentPosition();
-    pixelLabel->setText(tr("RGBA: (%1, %2, %3, %4)")
-                        .arg(clr.red())
-                        .arg(clr.green())
-                        .arg(clr.blue())
-                        .arg(clr.alpha()));
+
+    if (!m_image)
+        return;
+
+    QString label = tr("Pixel: ");
+
+    /* If the image is flipped, substitute y to match */
+    if (flipCheckBox->isChecked()) {
+        y = m_convertedImage.height() - y - 1;
+    }
+
+    if (m_image->channelType == image::TYPE_UNORM8) {
+        label += createPixelLabel<unsigned char>(m_image, x, y);
+    } else {
+        label += createPixelLabel<float>(m_image, x, y);
+    }
+
+    pixelLabel->setText(label);
     pixelLabel->show();
 }