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speed up un-cached directories

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embedded thumbnails will be used for the first pass when cached thumbnails are not found.
This commit is contained in:
Steve Herrell
2010-10-29 12:06:17 +02:00
parent 7ce062cfc3
commit b25d03e6ea
18 changed files with 397 additions and 59 deletions
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89
rtengine/rtthumbnail.cc
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@@ -48,6 +48,62 @@ my_jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile);
namespace rtengine {
Thumbnail* Thumbnail::loadFromMemory (const char* image, int length, int &w, int &h, int fixwh) {
Image16* img = new Image16 ();
int err = img->loadJPEGFromMemory(image,length);
if (err) {
printf("loadfromMemory: error\n");
delete img;
return NULL;
}
Thumbnail* tpp = new Thumbnail ();
tpp->camwbRed = 1.0;
tpp->camwbGreen = 1.0;
tpp->camwbBlue = 1.0;
tpp->embProfileLength = 0;
unsigned char* data;
img->getEmbeddedProfileData (tpp->embProfileLength, data);
if (data && tpp->embProfileLength) {
tpp->embProfileData = new unsigned char [tpp->embProfileLength];
memcpy (tpp->embProfileData, data, tpp->embProfileLength);
}
else {
tpp->embProfileLength = 0;
tpp->embProfileData = NULL;
}
tpp->redMultiplier = 1.0;
tpp->greenMultiplier = 1.0;
tpp->blueMultiplier = 1.0;
tpp->scaleForSave = 8192;
tpp->defGain = 1.0;
tpp->gammaCorrected = false;
tpp->isRaw = 1;
memset (tpp->colorMatrix, 0, sizeof(tpp->colorMatrix));
tpp->colorMatrix[0][0] = 1.0;
tpp->colorMatrix[1][1] = 1.0;
tpp->colorMatrix[2][2] = 1.0;
if (fixwh==1) {
w = h * img->width / img->height;
tpp->scale = (double)img->height / h;
}
else {
h = w * img->height / img->width;
tpp->scale = (double)img->width / w;
}
tpp->thumbImg = img->resize (w, h, TI_Nearest);
delete img;
tpp->init ();
return tpp;
}
Thumbnail* Thumbnail::loadFromImage (const Glib::ustring& fname, int &w, int &h, int fixwh) {
Image16* img = new Image16 ();
@@ -173,6 +229,39 @@ Thumbnail::~Thumbnail () {
cmsCloseProfile(camProfile);
}
IImage8* Thumbnail::quickProcessImage (const procparams::ProcParams& params, int rheight, TypeInterpolation interp, double& myscale) {
int rwidth;
if (params.coarse.rotate==90 || params.coarse.rotate==270) {
rwidth = rheight;
rheight = thumbImg->height * rwidth / thumbImg->width;
}
else
rwidth = thumbImg->width * rheight / thumbImg->height;
Image16* baseImg = thumbImg->resize (rwidth, rheight, interp);
if (params.coarse.rotate) {
Image16* tmp = baseImg->rotate (params.coarse.rotate);
rwidth = tmp->width;
rheight = tmp->height;
delete baseImg;
baseImg = tmp;
}
if (params.coarse.hflip) {
Image16* tmp = baseImg->hflip ();
delete baseImg;
baseImg = tmp;
}
if (params.coarse.vflip) {
Image16* tmp = baseImg->vflip ();
delete baseImg;
baseImg = tmp;
}
Image8* img8 = baseImg->to8();
delete baseImg;
return img8;
}
IImage8* Thumbnail::processImage (const procparams::ProcParams& params, int rheight, TypeInterpolation interp, double& myscale) {
// compute WB multipliers