tdesktop/Telegram/SourceFiles/ui/image/image.cpp

666 lines
19 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/image/image.h"
#include "storage/cache/storage_cache_database.h"
#include "data/data_session.h"
#include "main/main_session.h"
#include "ui/ui_utility.h"
using namespace Images;
namespace Images {
namespace {
[[nodiscard]] uint64 PixKey(int width, int height, Options options) {
return static_cast<uint64>(width)
| (static_cast<uint64>(height) << 24)
| (static_cast<uint64>(options) << 48);
}
[[nodiscard]] uint64 SinglePixKey(Options options) {
return PixKey(0, 0, options);
}
} // namespace
QByteArray ExpandInlineBytes(const QByteArray &bytes) {
if (bytes.size() < 3 || bytes[0] != '\x01') {
return QByteArray();
}
const char header[] = "\xff\xd8\xff\xe0\x00\x10\x4a\x46\x49"
"\x46\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00\xff\xdb\x00\x43\x00\x28\x1c"
"\x1e\x23\x1e\x19\x28\x23\x21\x23\x2d\x2b\x28\x30\x3c\x64\x41\x3c\x37\x37"
"\x3c\x7b\x58\x5d\x49\x64\x91\x80\x99\x96\x8f\x80\x8c\x8a\xa0\xb4\xe6\xc3"
"\xa0\xaa\xda\xad\x8a\x8c\xc8\xff\xcb\xda\xee\xf5\xff\xff\xff\x9b\xc1\xff"
"\xff\xff\xfa\xff\xe6\xfd\xff\xf8\xff\xdb\x00\x43\x01\x2b\x2d\x2d\x3c\x35"
"\x3c\x76\x41\x41\x76\xf8\xa5\x8c\xa5\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8"
"\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8"
"\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8\xf8"
"\xf8\xf8\xf8\xf8\xf8\xff\xc0\x00\x11\x08\x00\x00\x00\x00\x03\x01\x22\x00"
"\x02\x11\x01\x03\x11\x01\xff\xc4\x00\x1f\x00\x00\x01\x05\x01\x01\x01\x01"
"\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08"
"\x09\x0a\x0b\xff\xc4\x00\xb5\x10\x00\x02\x01\x03\x03\x02\x04\x03\x05\x05"
"\x04\x04\x00\x00\x01\x7d\x01\x02\x03\x00\x04\x11\x05\x12\x21\x31\x41\x06"
"\x13\x51\x61\x07\x22\x71\x14\x32\x81\x91\xa1\x08\x23\x42\xb1\xc1\x15\x52"
"\xd1\xf0\x24\x33\x62\x72\x82\x09\x0a\x16\x17\x18\x19\x1a\x25\x26\x27\x28"
"\x29\x2a\x34\x35\x36\x37\x38\x39\x3a\x43\x44\x45\x46\x47\x48\x49\x4a\x53"
"\x54\x55\x56\x57\x58\x59\x5a\x63\x64\x65\x66\x67\x68\x69\x6a\x73\x74\x75"
"\x76\x77\x78\x79\x7a\x83\x84\x85\x86\x87\x88\x89\x8a\x92\x93\x94\x95\x96"
"\x97\x98\x99\x9a\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xb2\xb3\xb4\xb5\xb6"
"\xb7\xb8\xb9\xba\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xd2\xd3\xd4\xd5\xd6"
"\xd7\xd8\xd9\xda\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xf1\xf2\xf3\xf4"
"\xf5\xf6\xf7\xf8\xf9\xfa\xff\xc4\x00\x1f\x01\x00\x03\x01\x01\x01\x01\x01"
"\x01\x01\x01\x01\x00\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08"
"\x09\x0a\x0b\xff\xc4\x00\xb5\x11\x00\x02\x01\x02\x04\x04\x03\x04\x07\x05"
"\x04\x04\x00\x01\x02\x77\x00\x01\x02\x03\x11\x04\x05\x21\x31\x06\x12\x41"
"\x51\x07\x61\x71\x13\x22\x32\x81\x08\x14\x42\x91\xa1\xb1\xc1\x09\x23\x33"
"\x52\xf0\x15\x62\x72\xd1\x0a\x16\x24\x34\xe1\x25\xf1\x17\x18\x19\x1a\x26"
"\x27\x28\x29\x2a\x35\x36\x37\x38\x39\x3a\x43\x44\x45\x46\x47\x48\x49\x4a"
"\x53\x54\x55\x56\x57\x58\x59\x5a\x63\x64\x65\x66\x67\x68\x69\x6a\x73\x74"
"\x75\x76\x77\x78\x79\x7a\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x92\x93\x94"
"\x95\x96\x97\x98\x99\x9a\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xb2\xb3\xb4"
"\xb5\xb6\xb7\xb8\xb9\xba\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xd2\xd3\xd4"
"\xd5\xd6\xd7\xd8\xd9\xda\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xf2\xf3\xf4"
"\xf5\xf6\xf7\xf8\xf9\xfa\xff\xda\x00\x0c\x03\x01\x00\x02\x11\x03\x11\x00"
"\x3f\x00";
const char footer[] = "\xff\xd9";
auto real = QByteArray(header, sizeof(header) - 1);
real[164] = bytes[1];
real[166] = bytes[2];
return real
+ bytes.mid(3)
+ QByteArray::fromRawData(footer, sizeof(footer) - 1);
}
QImage FromInlineBytes(const QByteArray &bytes) {
return Read({ .content = ExpandInlineBytes(bytes) }).image;
}
// Thanks TDLib for code.
QByteArray ExpandPathInlineBytes(const QByteArray &bytes) {
auto result = QByteArray();
result.reserve(3 * (bytes.size() + 1));
result.append('M');
for (unsigned char c : bytes) {
if (c >= 128 + 64) {
result.append("AACAAAAHAAALMAAAQASTAVAAAZ"
"aacaaaahaaalmaaaqastava.az0123456789-,"[c - 128 - 64]);
} else {
if (c >= 128) {
result.append(',');
} else if (c >= 64) {
result.append('-');
}
//char buffer[3] = { 0 }; // Unavailable on macOS < 10.15.
//std::to_chars(buffer, buffer + 3, (c & 63));
//result.append(buffer);
result.append(QByteArray::number(c & 63));
}
}
result.append('z');
return result;
}
QPainterPath PathFromInlineBytes(const QByteArray &bytes) {
if (bytes.isEmpty()) {
return QPainterPath();
}
const auto expanded = ExpandPathInlineBytes(bytes);
const auto path = expanded.data(); // Allows checking for '\0' by index.
auto position = 0;
const auto isAlpha = [](char c) {
c |= 0x20;
return 'a' <= c && c <= 'z';
};
const auto isDigit = [](char c) {
return '0' <= c && c <= '9';
};
const auto skipCommas = [&] {
while (path[position] == ',') {
++position;
}
};
const auto getNumber = [&] {
skipCommas();
auto sign = 1;
if (path[position] == '-') {
sign = -1;
++position;
}
double res = 0;
while (isDigit(path[position])) {
res = res * 10 + path[position++] - '0';
}
if (path[position] == '.') {
++position;
double mul = 0.1;
while (isDigit(path[position])) {
res += (path[position] - '0') * mul;
mul *= 0.1;
++position;
}
}
return sign * res;
};
auto result = QPainterPath();
auto x = 0.;
auto y = 0.;
while (path[position] != '\0') {
skipCommas();
if (path[position] == '\0') {
break;
}
while (path[position] == 'm' || path[position] == 'M') {
auto command = path[position++];
do {
if (command == 'm') {
x += getNumber();
y += getNumber();
} else {
x = getNumber();
y = getNumber();
}
skipCommas();
} while (path[position] != '\0' && !isAlpha(path[position]));
}
auto xStart = x;
auto yStart = y;
result.moveTo(xStart, yStart);
auto haveLastEndControlPoint = false;
auto xLastEndControlPoint = 0.;
auto yLastEndControlPoint = 0.;
auto isClosed = false;
auto command = '-';
while (!isClosed) {
skipCommas();
if (path[position] == '\0') {
LOG(("SVG Error: Receive unclosed path: %1"
).arg(QString::fromLatin1(path)));
return QPainterPath();
}
if (isAlpha(path[position])) {
command = path[position++];
}
switch (command) {
case 'l':
case 'L':
case 'h':
case 'H':
case 'v':
case 'V':
if (command == 'l' || command == 'h') {
x += getNumber();
} else if (command == 'L' || command == 'H') {
x = getNumber();
}
if (command == 'l' || command == 'v') {
y += getNumber();
} else if (command == 'L' || command == 'V') {
y = getNumber();
}
result.lineTo(x, y);
haveLastEndControlPoint = false;
break;
case 'C':
case 'c':
case 'S':
case 's': {
auto xStartControlPoint = 0.;
auto yStartControlPoint = 0.;
if (command == 'S' || command == 's') {
if (haveLastEndControlPoint) {
xStartControlPoint = 2 * x - xLastEndControlPoint;
yStartControlPoint = 2 * y - yLastEndControlPoint;
} else {
xStartControlPoint = x;
yStartControlPoint = y;
}
} else {
xStartControlPoint = getNumber();
yStartControlPoint = getNumber();
if (command == 'c') {
xStartControlPoint += x;
yStartControlPoint += y;
}
}
xLastEndControlPoint = getNumber();
yLastEndControlPoint = getNumber();
if (command == 'c' || command == 's') {
xLastEndControlPoint += x;
yLastEndControlPoint += y;
}
haveLastEndControlPoint = true;
if (command == 'c' || command == 's') {
x += getNumber();
y += getNumber();
} else {
x = getNumber();
y = getNumber();
}
result.cubicTo(
xStartControlPoint,
yStartControlPoint,
xLastEndControlPoint,
yLastEndControlPoint,
x,
y);
break;
}
case 'm':
case 'M':
--position;
[[fallthrough]];
case 'z':
case 'Z':
if (x != xStart || y != yStart) {
x = xStart;
y = yStart;
result.lineTo(x, y);
}
isClosed = true;
break;
default:
LOG(("SVG Error: Receive invalid command %1 at pos %2: %3"
).arg(command
).arg(position
).arg(QString::fromLatin1(path)));
return QPainterPath();
}
}
}
return result;
}
} // namespace Images
Image::Image(const QString &path)
: Image(Read({ .path = path }).image) {
}
Image::Image(const QByteArray &content)
: Image(Read({ .content = content }).image) {
}
Image::Image(QImage &&data)
: _data(data.isNull() ? Empty()->original() : std::move(data)) {
Expects(!_data.isNull());
}
not_null<Image*> Image::Empty() {
static auto result = Image([] {
const auto factor = cIntRetinaFactor();
auto data = QImage(
factor,
factor,
QImage::Format_ARGB32_Premultiplied);
data.fill(Qt::transparent);
data.setDevicePixelRatio(cRetinaFactor());
return data;
}());
return &result;
}
not_null<Image*> Image::BlankMedia() {
static auto result = Image([] {
const auto factor = cIntRetinaFactor();
auto data = QImage(
factor,
factor,
QImage::Format_ARGB32_Premultiplied);
data.fill(Qt::black);
data.setDevicePixelRatio(cRetinaFactor());
return data;
}());
return &result;
}
QImage Image::original() const {
return _data;
}
const QPixmap &Image::pix(int w, int h) const {
if (w <= 0 || !width() || !height()) {
w = width();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::None;
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixNoCache(w, h, options);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixRounded(
int w,
int h,
ImageRoundRadius radius,
RectParts corners) const {
if (w <= 0 || !width() || !height()) {
w = width();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::None;
auto cornerOptions = [](RectParts corners) {
return (corners & RectPart::TopLeft ? Option::RoundedTopLeft : Option::None)
| (corners & RectPart::TopRight ? Option::RoundedTopRight : Option::None)
| (corners & RectPart::BottomLeft ? Option::RoundedBottomLeft : Option::None)
| (corners & RectPart::BottomRight ? Option::RoundedBottomRight : Option::None);
};
if (radius == ImageRoundRadius::Large) {
options |= Option::RoundedLarge | cornerOptions(corners);
} else if (radius == ImageRoundRadius::Small) {
options |= Option::RoundedSmall | cornerOptions(corners);
} else if (radius == ImageRoundRadius::Ellipse) {
options |= Option::Circled | cornerOptions(corners);
}
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixNoCache(w, h, options);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixCircled(int w, int h) const {
if (w <= 0 || !width() || !height()) {
w = width();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::Circled;
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixNoCache(w, h, options);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixBlurredCircled(int w, int h) const {
if (w <= 0 || !width() || !height()) {
w = width();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::Circled | Option::Blurred;
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixNoCache(w, h, options);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixBlurred(int w, int h) const {
if (w <= 0 || !width() || !height()) {
w = width() * cIntRetinaFactor();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::Blurred;
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixNoCache(w, h, options);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixColored(style::color add, int w, int h) const {
if (w <= 0 || !width() || !height()) {
w = width() * cIntRetinaFactor();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::Colored;
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixColoredNoCache(add, w, h, true);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixBlurredColored(
style::color add,
int w,
int h) const {
if (w <= 0 || !width() || !height()) {
w = width() * cIntRetinaFactor();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Blurred | Option::Smooth | Option::Colored;
auto k = PixKey(w, h, options);
auto i = _cache.find(k);
if (i == _cache.cend()) {
auto p = pixBlurredColoredNoCache(add, w, h);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixSingle(
int w,
int h,
int outerw,
int outerh,
ImageRoundRadius radius,
RectParts corners,
const style::color *colored) const {
if (w <= 0 || !width() || !height()) {
w = width() * cIntRetinaFactor();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::None;
auto cornerOptions = [](RectParts corners) {
return (corners & RectPart::TopLeft ? Option::RoundedTopLeft : Option::None)
| (corners & RectPart::TopRight ? Option::RoundedTopRight : Option::None)
| (corners & RectPart::BottomLeft ? Option::RoundedBottomLeft : Option::None)
| (corners & RectPart::BottomRight ? Option::RoundedBottomRight : Option::None);
};
if (radius == ImageRoundRadius::Large) {
options |= Option::RoundedLarge | cornerOptions(corners);
} else if (radius == ImageRoundRadius::Small) {
options |= Option::RoundedSmall | cornerOptions(corners);
} else if (radius == ImageRoundRadius::Ellipse) {
options |= Option::Circled | cornerOptions(corners);
}
if (colored) {
options |= Option::Colored;
}
auto k = SinglePixKey(options);
auto i = _cache.find(k);
if (i == _cache.cend() || i->second.width() != (outerw * cIntRetinaFactor()) || i->second.height() != (outerh * cIntRetinaFactor())) {
auto p = pixNoCache(w, h, options, outerw, outerh, colored);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
const QPixmap &Image::pixBlurredSingle(
int w,
int h,
int outerw,
int outerh,
ImageRoundRadius radius,
RectParts corners,
const style::color *colored) const {
if (w <= 0 || !width() || !height()) {
w = width() * cIntRetinaFactor();
} else {
w *= cIntRetinaFactor();
h *= cIntRetinaFactor();
}
auto options = Option::Smooth | Option::Blurred;
auto cornerOptions = [](RectParts corners) {
return (corners & RectPart::TopLeft ? Option::RoundedTopLeft : Option::None)
| (corners & RectPart::TopRight ? Option::RoundedTopRight : Option::None)
| (corners & RectPart::BottomLeft ? Option::RoundedBottomLeft : Option::None)
| (corners & RectPart::BottomRight ? Option::RoundedBottomRight : Option::None);
};
if (radius == ImageRoundRadius::Large) {
options |= Option::RoundedLarge | cornerOptions(corners);
} else if (radius == ImageRoundRadius::Small) {
options |= Option::RoundedSmall | cornerOptions(corners);
} else if (radius == ImageRoundRadius::Ellipse) {
options |= Option::Circled | cornerOptions(corners);
}
if (colored) {
options |= Option::Colored;
}
auto k = SinglePixKey(options);
auto i = _cache.find(k);
if (i == _cache.cend() || i->second.width() != (outerw * cIntRetinaFactor()) || i->second.height() != (outerh * cIntRetinaFactor())) {
auto p = pixNoCache(w, h, options, outerw, outerh, colored);
p.setDevicePixelRatio(cRetinaFactor());
i = _cache.emplace_or_assign(k, p).first;
}
return i->second;
}
QPixmap Image::pixNoCache(
int w,
int h,
Options options,
int outerw,
int outerh,
const style::color *colored) const {
if (_data.isNull()) {
if (h <= 0 && height() > 0) {
h = qRound(width() * w / float64(height()));
}
return Empty()->pixNoCache(w, h, options, outerw, outerh);
}
if (isNull() && outerw > 0 && outerh > 0) {
outerw *= cIntRetinaFactor();
outerh *= cIntRetinaFactor();
QImage result(outerw, outerh, QImage::Format_ARGB32_Premultiplied);
result.setDevicePixelRatio(style::DevicePixelRatio());
{
QPainter p(&result);
if (w < outerw) {
p.fillRect(0, 0, (outerw - w) / 2, result.height(), st::imageBg);
p.fillRect(((outerw - w) / 2) + w, 0, result.width() - (((outerw - w) / 2) + w), result.height(), st::imageBg);
}
if (h < outerh) {
p.fillRect(qMax(0, (outerw - w) / 2), 0, qMin(result.width(), w), (outerh - h) / 2, st::imageBg);
p.fillRect(qMax(0, (outerw - w) / 2), ((outerh - h) / 2) + h, qMin(result.width(), w), result.height() - (((outerh - h) / 2) + h), st::imageBg);
}
p.fillRect(qMax(0, (outerw - w) / 2), qMax(0, (outerh - h) / 2), qMin(result.width(), w), qMin(result.height(), h), st::imageBgTransparent);
}
auto corners = [](Options options) {
return ((options & Option::RoundedTopLeft) ? RectPart::TopLeft : RectPart::None)
| ((options & Option::RoundedTopRight) ? RectPart::TopRight : RectPart::None)
| ((options & Option::RoundedBottomLeft) ? RectPart::BottomLeft : RectPart::None)
| ((options & Option::RoundedBottomRight) ? RectPart::BottomRight : RectPart::None);
};
if (options & Option::Circled) {
prepareCircle(result);
} else if (options & Option::RoundedLarge) {
prepareRound(result, ImageRoundRadius::Large, corners(options));
} else if (options & Option::RoundedSmall) {
prepareRound(result, ImageRoundRadius::Small, corners(options));
}
if (options & Option::Colored) {
Assert(colored != nullptr);
result = prepareColored(*colored, std::move(result));
}
return Ui::PixmapFromImage(std::move(result));
}
return Ui::PixmapFromImage(
prepare(_data, w, h, options, outerw, outerh, colored));
}
QPixmap Image::pixColoredNoCache(
style::color add,
int w,
int h,
bool smooth) const {
if (_data.isNull()) {
return Empty()->pix();
}
auto img = _data;
if (w <= 0 || !width() || !height() || (w == width() && (h <= 0 || h == height()))) {
return Ui::PixmapFromImage(prepareColored(add, std::move(img)));
}
const auto transformation = smooth
? Qt::SmoothTransformation
: Qt::FastTransformation;
if (h <= 0) {
return Ui::PixmapFromImage(
prepareColored(add, img.scaledToWidth(w, transformation)));
}
return Ui::PixmapFromImage(
prepareColored(
add,
img.scaled(w, h, Qt::IgnoreAspectRatio, transformation)));
}
QPixmap Image::pixBlurredColoredNoCache(
style::color add,
int w,
int h) const {
if (_data.isNull()) {
return Empty()->pix();
}
auto img = prepareBlur(_data);
if (h <= 0) {
img = img.scaledToWidth(w, Qt::SmoothTransformation);
} else {
img = img.scaled(w, h, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
}
return Ui::PixmapFromImage(prepareColored(add, img));
}