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Rise max public chat message size to 31000 bytes

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Rise color palette size from 16 to 256 colors

Note: Max chat item size is 32000 without splitting the message.
31000 = 32000 - some place left for other fields
This commit is contained in:
hunbernd 2019-07-05 13:41:30 +02:00
parent 73574ff2ad
commit 9a884b7bf7
2 changed files with 5 additions and 5 deletions
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2
libretroshare/src/chat/p3chatservice.cc
View File

@ -47,7 +47,7 @@
* #define CHAT_DEBUG 1
****/
static const uint32_t MAX_MESSAGE_SECURITY_SIZE = 6000 ; // Max message size to forward other friends
static const uint32_t MAX_MESSAGE_SECURITY_SIZE = 31000 ; // Max message size to forward other friends
static const uint32_t MAX_AVATAR_JPEG_SIZE = 32767; // Maximum size in bytes for an avatar. Too large packets
// don't transfer correctly and can kill the system.
// Images are 96x96, which makes approx. 27000 bytes uncompressed.

8
retroshare-gui/src/util/imageutil.cpp
View File

@ -99,9 +99,9 @@ bool ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &opti
}
//Use binary search to find a suitable image size + linear regression to guess the file size
double maxsize = (double)checkSize(html, optimized = original.scaledToWidth(maxwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
double maxsize = (double)checkSize(html, optimized = original.scaledToWidth(maxwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct, Qt::ThresholdDither), maxBytes);
if(maxsize <= maxBytes) return true; //success
double minsize = (double)checkSize(html, optimized = original.scaledToWidth(minwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
double minsize = (double)checkSize(html, optimized = original.scaledToWidth(minwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct, Qt::ThresholdDither), maxBytes);
if(minsize > maxBytes) return false; //impossible
// std::cout << "maxS: " << maxsize << " minS: " << minsize << std::endl;
@ -114,7 +114,7 @@ bool ImageUtil::optimizeSize(QString &html, const QImage& original, QImage &opti
double b = maxsize - m * ((double)maxwidth * (double)maxwidth / whratio);
double a = ((double)(maxBytes - region/2) - b) / m; //maxBytes - region/2 target the center of the accepted region
int nextwidth = (int)sqrt(a * whratio);
int nextsize = checkSize(html, optimized = original.scaledToWidth(nextwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct), maxBytes);
int nextsize = checkSize(html, optimized = original.scaledToWidth(nextwidth, Qt::SmoothTransformation).convertToFormat(QImage::Format_Indexed8, ct, Qt::ThresholdDither), maxBytes);
if(nextsize <= maxBytes) {
minsize = nextsize;
minwidth = nextwidth;
@ -188,7 +188,7 @@ bool blueLessThan(const QRgb &c1, const QRgb &c2)
//median cut algoritmh
void ImageUtil::quantization(const QImage &img, QVector<QRgb> &palette)
{
int bits = 4; // bits/pixel
int bits = 8; // bits/pixel
int samplesize = 100000; //only take this many color samples
rstime::RsScopeTimer st("Quantization");