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-rw-r--r--src/gui/image/qimage.cpp287
1 files changed, 287 insertions, 0 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index d89ffe6..bb8a994 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -2274,6 +2274,8 @@ bool QImage::create(const QSize& size, int depth, int numColors, QImage::Endian
typedef void (*Image_Converter)(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags);
+typedef bool (*InPlace_Image_Converter)(QImageData *data, Qt::ImageConversionFlags);
+
static void convert_ARGB_to_ARGB_PM(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags)
{
Q_ASSERT(src->format == QImage::Format_ARGB32);
@@ -2298,6 +2300,169 @@ static void convert_ARGB_to_ARGB_PM(QImageData *dest, const QImageData *src, Qt:
}
}
+static bool convert_ARGB_to_ARGB_PM_inplace(QImageData *data, Qt::ImageConversionFlags)
+{
+ Q_ASSERT(data->format == QImage::Format_ARGB32);
+
+ const int pad = (data->bytes_per_line >> 2) - data->width;
+ QRgb *rgb_data = (QRgb *) data->data;
+
+ for (int i = 0; i < data->height; ++i) {
+ const QRgb *end = rgb_data + data->width;
+ while (rgb_data < end) {
+ *rgb_data = PREMUL(*rgb_data);
+ ++rgb_data;
+ }
+ rgb_data += pad;
+ }
+ data->format = QImage::Format_ARGB32_Premultiplied;
+ return true;
+}
+
+static bool convert_indexed8_to_ARGB_PM_inplace(QImageData *data, Qt::ImageConversionFlags)
+{
+ Q_ASSERT(data->format == QImage::Format_Indexed8);
+ const int depth = 32;
+
+ const int dst_bytes_per_line = ((data->width * depth + 31) >> 5) << 2;
+ const int nbytes = dst_bytes_per_line * data->height;
+ uchar *const newData = (uchar *)realloc(data->data, nbytes);
+ if (!newData)
+ return false;
+
+ data->data = newData;
+
+ // start converting from the end because the end image is bigger than the source
+ uchar *src_data = newData + data->nbytes; // end of src
+ quint32 *dest_data = (quint32 *) (newData + nbytes); // end of dest > end of src
+ const int width = data->width;
+ const int src_pad = data->bytes_per_line - width;
+ const int dest_pad = (dst_bytes_per_line >> 2) - width;
+
+ for (int i = 0; i < data->height; ++i) {
+ src_data -= src_pad;
+ dest_data -= dest_pad;
+ for (int pixI = 0; pixI < width; ++pixI) {
+ --src_data;
+ --dest_data;
+ const uint pixel = data->colortable[*src_data];
+ *dest_data = (quint32) PREMUL(pixel);
+ }
+ }
+
+ data->format = QImage::Format_ARGB32_Premultiplied;
+ data->bytes_per_line = dst_bytes_per_line;
+ data->depth = depth;
+ data->nbytes = nbytes;
+
+ return true;
+}
+
+static bool convert_indexed8_to_RGB_inplace(QImageData *data, Qt::ImageConversionFlags)
+{
+ Q_ASSERT(data->format == QImage::Format_Indexed8);
+ const int depth = 32;
+
+ const int dst_bytes_per_line = ((data->width * depth + 31) >> 5) << 2;
+ const int nbytes = dst_bytes_per_line * data->height;
+ uchar *const newData = (uchar *)realloc(data->data, nbytes);
+ if (!newData)
+ return false;
+
+ data->data = newData;
+
+ // start converting from the end because the end image is bigger than the source
+ uchar *src_data = newData + data->nbytes;
+ quint32 *dest_data = (quint32 *) (newData + nbytes);
+ const int width = data->width;
+ const int src_pad = data->bytes_per_line - width;
+ const int dest_pad = (dst_bytes_per_line >> 2) - width;
+
+ for (int i = 0; i < data->height; ++i) {
+ src_data -= src_pad;
+ dest_data -= dest_pad;
+ for (int pixI = 0; pixI < width; ++pixI) {
+ --src_data;
+ --dest_data;
+ *dest_data = (quint32) data->colortable[*src_data];
+ }
+ }
+
+ data->format = QImage::Format_RGB32;
+ data->bytes_per_line = dst_bytes_per_line;
+ data->depth = depth;
+ data->nbytes = nbytes;
+
+ return true;
+}
+
+static bool convert_indexed8_to_RGB16_inplace(QImageData *data, Qt::ImageConversionFlags)
+{
+ Q_ASSERT(data->format == QImage::Format_Indexed8);
+ const int depth = 16;
+
+ const int dst_bytes_per_line = ((data->width * depth + 31) >> 5) << 2;
+ const int nbytes = dst_bytes_per_line * data->height;
+ uchar *const newData = (uchar *)realloc(data->data, nbytes);
+ if (!newData)
+ return false;
+
+ data->data = newData;
+
+ // start converting from the end because the end image is bigger than the source
+ uchar *src_data = newData + data->nbytes;
+ quint16 *dest_data = (quint16 *) (newData + nbytes);
+ const int width = data->width;
+ const int src_pad = data->bytes_per_line - width;
+ const int dest_pad = (dst_bytes_per_line >> 1) - width;
+
+ for (int i = 0; i < data->height; ++i) {
+ src_data -= src_pad;
+ dest_data -= dest_pad;
+ for (int pixI = 0; pixI < width; ++pixI) {
+ --src_data;
+ --dest_data;
+ const uint pixel = data->colortable[*src_data];
+ *dest_data = qt_colorConvert<quint16, quint32>(pixel, 0);
+ }
+ }
+
+ data->format = QImage::Format_RGB16;
+ data->bytes_per_line = dst_bytes_per_line;
+ data->depth = depth;
+ data->nbytes = nbytes;
+
+ return true;
+}
+
+static bool convert_RGB_to_RGB16_inplace(QImageData *data, Qt::ImageConversionFlags)
+{
+ Q_ASSERT(data->format == QImage::Format_RGB32);
+ const int depth = 16;
+
+ const int dst_bytes_per_line = ((data->width * depth + 31) >> 5) << 2;
+ const int src_bytes_per_line = data->bytes_per_line;
+ quint32 *src_data = (quint32 *) data->data;
+ quint16 *dst_data = (quint16 *) data->data;
+
+ for (int i = 0; i < data->height; ++i) {
+ qt_memconvert(dst_data, src_data, data->width);
+ src_data = (quint32 *) (((char*)src_data) + src_bytes_per_line);
+ dst_data = (quint16 *) (((char*)dst_data) + dst_bytes_per_line);
+ }
+ data->format = QImage::Format_RGB16;
+ data->bytes_per_line = dst_bytes_per_line;
+ data->depth = depth;
+ data->nbytes = dst_bytes_per_line * data->height;
+ uchar *const newData = (uchar *)realloc(data->data, data->nbytes);
+ if (newData) {
+ data->data = newData;
+ return true;
+ } else {
+ return false;
+ }
+}
+
static void convert_ARGB_PM_to_ARGB(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags)
{
Q_ASSERT(src->format == QImage::Format_ARGB32_Premultiplied);
@@ -3447,6 +3612,103 @@ static const Image_Converter converter_map[QImage::NImageFormats][QImage::NImage
} // Format_ARGB4444_Premultiplied
};
+static const InPlace_Image_Converter inplace_converter_map[QImage::NImageFormats][QImage::NImageFormats] =
+{
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ },
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_Mono
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_MonoLSB
+ {
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ convert_indexed8_to_RGB_inplace,
+ convert_indexed8_to_ARGB_PM_inplace,
+ convert_indexed8_to_RGB16_inplace,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ }, // Format_Indexed8
+ {
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ convert_RGB_to_RGB16_inplace,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ }, // Format_ARGB32
+ {
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ convert_ARGB_to_ARGB_PM_inplace,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ }, // Format_ARGB32
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_ARGB32_Premultiplied
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_RGB16
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_ARGB8565_Premultiplied
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_RGB666
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_ARGB6666_Premultiplied
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_RGB555
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_ARGB8555_Premultiplied
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_RGB888
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ }, // Format_RGB444
+ {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ } // Format_ARGB4444_Premultiplied
+};
+
/*!
Returns a copy of the image in the given \a format.
@@ -4210,6 +4472,7 @@ QImage QImage::createHeuristicMask(bool clipTight) const
int w = width();
int h = height();
QImage m(w, h, Format_MonoLSB);
+ QIMAGE_SANITYCHECK_MEMORY(m);
m.setColorCount(2);
m.setColor(0, QColor(Qt::color0).rgba());
m.setColor(1, QColor(Qt::color1).rgba());
@@ -4302,6 +4565,7 @@ QImage QImage::createMaskFromColor(QRgb color, Qt::MaskMode mode) const
if (!d)
return QImage();
QImage maskImage(size(), QImage::Format_MonoLSB);
+ QIMAGE_SANITYCHECK_MEMORY(maskImage);
maskImage.fill(0);
uchar *s = maskImage.bits();
@@ -4362,6 +4626,7 @@ QImage QImage::mirrored(bool horizontal, bool vertical) const
int h = d->height;
// Create result image, copy colormap
QImage result(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(result);
// check if we ran out of of memory..
if (!result.d)
@@ -4499,6 +4764,7 @@ QImage QImage::rgbSwapped() const
case Format_ARGB32:
case Format_ARGB32_Premultiplied:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
uint *q = (uint*)res.scanLine(i);
uint *p = (uint*)scanLine(i);
@@ -4512,6 +4778,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_RGB16:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
ushort *q = (ushort*)res.scanLine(i);
const ushort *p = (const ushort*)scanLine(i);
@@ -4525,6 +4792,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_ARGB8565_Premultiplied:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
quint8 *p = (quint8*)scanLine(i);
const quint8 *end = p + d->width * sizeof(qargb8565);
@@ -4537,6 +4805,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_RGB666:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
qrgb666 *q = reinterpret_cast<qrgb666*>(res.scanLine(i));
const qrgb666 *p = reinterpret_cast<const qrgb666*>(scanLine(i));
@@ -4549,6 +4818,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_ARGB6666_Premultiplied:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
qargb6666 *q = reinterpret_cast<qargb6666*>(res.scanLine(i));
const qargb6666 *p = reinterpret_cast<const qargb6666*>(scanLine(i));
@@ -4561,6 +4831,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_RGB555:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
ushort *q = (ushort*)res.scanLine(i);
const ushort *p = (const ushort*)scanLine(i);
@@ -4574,6 +4845,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_ARGB8555_Premultiplied:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
quint8 *p = (quint8*)scanLine(i);
const quint8 *end = p + d->width * sizeof(qargb8555);
@@ -4586,6 +4858,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_RGB888:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
quint8 *q = reinterpret_cast<quint8*>(res.scanLine(i));
const quint8 *p = reinterpret_cast<const quint8*>(scanLine(i));
@@ -4601,6 +4874,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_RGB444:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
quint8 *q = reinterpret_cast<quint8*>(res.scanLine(i));
const quint8 *p = reinterpret_cast<const quint8*>(scanLine(i));
@@ -4615,6 +4889,7 @@ QImage QImage::rgbSwapped() const
break;
case Format_ARGB4444_Premultiplied:
res = QImage(d->width, d->height, d->format);
+ QIMAGE_SANITYCHECK_MEMORY(res);
for (int i = 0; i < d->height; i++) {
quint8 *q = reinterpret_cast<quint8*>(res.scanLine(i));
const quint8 *p = reinterpret_cast<const quint8*>(scanLine(i));
@@ -6263,6 +6538,18 @@ QTransform QImage::trueMatrix(const QTransform &matrix, int w, int h)
return matrix * QTransform().translate(-delta.x(), -delta.y());
}
+bool QImageData::convertInPlace(QImage::Format newFormat, Qt::ImageConversionFlags flags)
+{
+ if (format == newFormat)
+ return true;
+
+ const InPlace_Image_Converter *const converterPtr = &inplace_converter_map[format][newFormat];
+ InPlace_Image_Converter converter = *converterPtr;
+ if (converter)
+ return converter(this, flags);
+ else
+ return false;
+}
/*!
\typedef QImage::DataPtr
generated by cgit v0.12 at 2025-01-05 00:51:06 (GMT)