GIT_SILENT Upgrade ECM and KF5 version requirements for 5.76.0 release.

CMakeLists.txt

@@ -5,7 +5,7 @@ project(KImageFormats)
 set (CMAKE_CXX_STANDARD 14)
 
 include(FeatureSummary)
-find_package(ECM 5.75.0  NO_MODULE)
+find_package(ECM 5.76.0  NO_MODULE)
 set_package_properties(ECM PROPERTIES TYPE REQUIRED DESCRIPTION "Extra CMake Modules." URL "https://commits.kde.org/extra-cmake-modules")
 feature_summary(WHAT REQUIRED_PACKAGES_NOT_FOUND FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
@@ -51,7 +51,7 @@ add_definitions(-DQT_NO_FOREACH)
 # 050d00 (5.13) triggers a BIC in qimageiohandler.h, in Qt 5.13, so do not enable that until we can require 5.14
 # https://codereview.qt-project.org/c/qt/qtbase/+/279215
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x050c00)
-add_definitions(-DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x054900)
+add_definitions(-DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x054B00)
 add_subdirectory(src)
 if (BUILD_TESTING)
     add_subdirectory(autotests)

src/imageformats/psd.cpp

@@ -87,7 +87,7 @@ static bool IsSupported(const PSDHeader &header)
     if (header.channel_count > 16) {
         return false;
     }
-    if (header.depth != 8) {
+    if (header.depth != 8 && header.depth != 16) {
         return false;
     }
     if (header.color_mode != CM_RGB) {
@@ -104,11 +104,18 @@ static void skip_section(QDataStream &s)
     s.skipRawData(section_length);
 }
 
-static quint8 readPixel(QDataStream &stream) {
+static quint8 readPixel_u16(QDataStream &stream) {
+    quint16 pixel;
+    stream >> pixel;
+    return pixel / (1 << 8);
+}
+
+static int readPixel_u8(QDataStream &stream) {
     quint8 pixel;
     stream >> pixel;
     return pixel;
 }
+
 static QRgb updateRed(QRgb oldPixel, quint8 redPixel) {
     return qRgba(redPixel, qGreen(oldPixel), qBlue(oldPixel), qAlpha(oldPixel));
 }
@@ -158,6 +165,14 @@ static bool LoadPSD(QDataStream &stream, const PSDHeader &header, QImage &img)
         // Ignore the other channels.
         channel_num = 4;
     }
+
+    if (compression == 1 && header.depth == 16) {
+        fmt = QImage::Format_RGBX64;
+        if (channel_num >= 4) {
+            fmt = QImage::Format_RGBA64;
+        }
+    }
+
     img = QImage(header.width, header.height, fmt);
     if (img.isNull()) {
         qWarning() << "Failed to allocate image, invalid dimensions?" << QSize(header.width, header.height);
@@ -186,6 +201,14 @@ static bool LoadPSD(QDataStream &stream, const PSDHeader &header, QImage &img)
         updateAlpha
     };
 
+    typedef QRgba64(*channelUpdater16)(QRgba64, quint16);
+    static const channelUpdater16 updaters64[4] = {
+        [](QRgba64 oldPixel, quint16 redPixel)  {return qRgba64((oldPixel & ~(0xFFFFull <<  0)) | (quint64(  redPixel) <<  0));},
+        [](QRgba64 oldPixel, quint16 greenPixel){return qRgba64((oldPixel & ~(0xFFFFull << 16)) | (quint64(greenPixel) << 16));},
+        [](QRgba64 oldPixel, quint16 bluePixel) {return qRgba64((oldPixel & ~(0xFFFFull << 32)) | (quint64( bluePixel) << 32));},
+        [](QRgba64 oldPixel, quint16 alphaPixel){return qRgba64((oldPixel & ~(0xFFFFull << 48)) | (quint64(alphaPixel) << 48));}
+    };
+
     if (compression) {
         // Skip row lengths.
         int skip_count = header.height * header.channel_count * sizeof(quint16);
@@ -194,9 +217,18 @@ static bool LoadPSD(QDataStream &stream, const PSDHeader &header, QImage &img)
         }
 
         for (unsigned short channel = 0; channel < channel_num; channel++) {
-            bool success = decodeRLEData(RLEVariant::PackBits, stream,
+            bool success = false;
+            if (header.depth == 8) {
+                success = decodeRLEData(RLEVariant::PackBits, stream,
                                          image_data, pixel_count,
-					 &readPixel, updaters[channel]);
+                                         &readPixel_u8, updaters[channel]);
+            } else if (header.depth == 16) {
+                QRgba64 *image_data = reinterpret_cast<QRgba64*>(img.bits());
+                success = decodeRLEData(RLEVariant::PackBits16, stream,
+                                         image_data, pixel_count * 2,
+                                         &readPixel_u8, updaters64[channel]);
+            }
+
             if (!success) {
                 qDebug() << "decodeRLEData on channel" << channel << "failed";
                 return false;
@@ -205,7 +237,10 @@ static bool LoadPSD(QDataStream &stream, const PSDHeader &header, QImage &img)
     } else {
         for (unsigned short channel = 0; channel < channel_num; channel++) {
             for (unsigned i = 0; i < pixel_count; ++i) {
-                image_data[i] = updaters[channel](image_data[i], readPixel(stream));
+                image_data[i] = updaters[channel](
+                                        image_data[i],
+                                        header.depth == 8 ? readPixel_u8(stream)
+                                                          : readPixel_u16(stream));
             }
             // make sure we didn't try to read past the end of the stream
             if (stream.status() != QDataStream::Ok) {

src/imageformats/rle_p.h

@@ -24,6 +24,11 @@ enum class RLEVariant {
      * of size 2, 130 of size 3, up to 255 of size 128.
      */
     PackBits,
+    /**
+     * Same as PackBits, but treat unpacked data as
+     * 16-bit integers.
+     */
+    PackBits16,
     /**
      * PIC-style RLE
      *
@@ -67,6 +72,8 @@ static inline bool decodeRLEData(RLEVariant variant,
                                  Func2 updateItem)
 {
     unsigned offset = 0; // in dest
+    bool is_msb = true; // only used for 16-bit PackBits, data is big-endian
+    quint16 temp_data = 0;
     while (offset < length) {
         unsigned remaining = length - offset;
         quint8 count1;
@@ -85,7 +92,7 @@ static inline bool decodeRLEData(RLEVariant variant,
                     // 2 to 128 repetitions
                     length = count1 - 127u;
                 }
-            } else if (variant == RLEVariant::PackBits) {
+            } else if (variant == RLEVariant::PackBits || variant == RLEVariant::PackBits16) {
                 if (count1 == 128u) {
                     // Ignore value 128
                     continue;
@@ -102,8 +109,19 @@ static inline bool decodeRLEData(RLEVariant variant,
             }
             auto datum = readData(stream);
             for (unsigned i = offset; i < offset + length; ++i) {
+                if (variant == RLEVariant::PackBits16) {
+                    if (is_msb) {
+                        temp_data = datum << 8;
+                        is_msb = false;
+                    } else {
+                        temp_data |= datum;
+                        dest[i >> 1] = updateItem(dest[i >> 1], temp_data);
+                        is_msb = true;
+                    }
+                } else {
                     dest[i] = updateItem(dest[i], datum);
                 }
+            }
             offset += length;
         } else {
             // No repetitions
@@ -114,8 +132,19 @@ static inline bool decodeRLEData(RLEVariant variant,
             }
             for (unsigned i = offset; i < offset + length; ++i) {
                 auto datum = readData(stream);
+                if (variant == RLEVariant::PackBits16) {
+                    if (is_msb) {
+                        temp_data = datum << 8;
+                        is_msb = false;
+                    } else {
+                        temp_data |= datum;
+                        dest[i >> 1] = updateItem(dest[i >> 1], temp_data);
+                        is_msb = true;
+                    }
+                } else {
                     dest[i] = updateItem(dest[i], datum);
                 }
+            }
             offset += length;
         }
     }