diff options
author | deva <deva> | 2011-07-15 13:02:33 +0000 |
---|---|---|
committer | deva <deva> | 2011-07-15 13:02:33 +0000 |
commit | cd0e36773992e26985bdec1f7a5341f83fa3e521 (patch) | |
tree | 4710fb3f2465f4b464f5f6176261a67cfde2e46e /dgedit/canvas.cc | |
parent | e190d38057892b69246391841b234a368bc2b4ad (diff) |
New input/output plugin architecture. New LV2 plugin.
Diffstat (limited to 'dgedit/canvas.cc')
-rw-r--r-- | dgedit/canvas.cc | 128 |
1 files changed, 31 insertions, 97 deletions
diff --git a/dgedit/canvas.cc b/dgedit/canvas.cc index 4c63e5e..5fc1f1f 100644 --- a/dgedit/canvas.cc +++ b/dgedit/canvas.cc @@ -35,7 +35,6 @@ #include <math.h> #define DEFYSCALE 200 -#define MIPMAPS 65536 Canvas::Canvas(QWidget *parent) : QWidget(parent) @@ -43,8 +42,12 @@ Canvas::Canvas(QWidget *parent) setAttribute(Qt::WA_StaticContents); setMouseTracking(true); setFocusPolicy(Qt::ClickFocus); + + mipmap = NULL; + data = NULL; size = 0; + xscale = 1.0; yscale = 1.0; xoffset = 0.0; @@ -77,31 +80,7 @@ Canvas::Canvas(QWidget *parent) Canvas::~Canvas() { if(data) delete[] data; -} - -#define VALL(x) (x*4) -#define VALU(x) (x*4+1) -#define POWL(x) (x*4+2) -#define POWU(x) (x*4+3) - -static void genmipmap(float *in, size_t insz, float *out, size_t outsz) -{ - float *lookup = out; - - for(size_t i = 0; i < outsz; i++) { - lookup[VALL(i)] = 0.0; - lookup[VALU(i)] = 0.0; - lookup[POWL(i)] = 0.0; - lookup[POWU(i)] = 0.0; - - for(size_t j = i * (insz / outsz); j < (i+1)*(insz / outsz); j++) { - if(in[VALU(j)] > lookup[VALU(i)]) lookup[VALU(i)] = in[VALU(j)]; - if(in[VALL(j)] < lookup[VALL(i)]) lookup[VALL(i)] = in[VALL(j)]; - if(in[POWU(j)] > 0) lookup[POWU(i)] += in[POWU(j)]; - if(in[POWL(j)] < 0) lookup[POWL(i)] += in[POWL(j)]; - } - - } + if(mipmap) delete mipmap; } void Canvas::load(QString file) @@ -110,55 +89,30 @@ void Canvas::load(QString file) delete[] data; data = NULL; size = 0; + } - QMap<int, float*>::iterator i = mipmaps.begin(); - while(i != mipmaps.end()) { - delete[] i.value(); - i++; - } - + if(mipmap) { + delete mipmap; + mipmap = NULL; } SF_INFO sf_info; SNDFILE *fh = sf_open(file.toStdString().c_str(), SFM_READ, &sf_info); if(!fh) { printf("Load error...\n"); + return; } - size = sf_seek(fh, 0, SEEK_END); + size = sf_info.frames; + + printf("Size: %u\n", (unsigned int)sf_info.frames); data = new float[size]; - sf_seek(fh, 0, SEEK_SET); sf_read_float(fh, data, size); sf_close(fh); - size_t lastsz = 0; - for(size_t dev = 2; dev <= MIPMAPS; dev*=2) { - size_t mipmapsize = size/dev; - - float *lookup = new float[mipmapsize * 4]; - - if(dev == 2) { - for(size_t i = 0; i < mipmapsize; i++) { - lookup[VALL(i)] = 0.0; - lookup[VALU(i)] = 0.0; - lookup[POWL(i)] = 0.0; - lookup[POWU(i)] = 0.0; - for(size_t j = i * dev; j < (i + 1) * dev; j++) { - if(data[j] > lookup[VALU(i)]) lookup[VALU(i)] = data[j]; - if(data[j] < lookup[VALL(i)]) lookup[VALL(i)] = data[j]; - if(data[j] > 0) lookup[POWU(i)] += data[j]; - if(data[j] < 0) lookup[POWL(i)] += data[j]; - } - } - } else { - genmipmap(mipmaps[dev/2], lastsz, lookup, mipmapsize); - } - - lastsz = mipmapsize; - mipmaps[dev] = lookup; - } + mipmap = new MipMap(data, size); updateWav(); update(); @@ -323,42 +277,17 @@ void Canvas::resizeEvent(QResizeEvent *) update(); } -void Canvas::getWavValues(int last, int lx, float *vu, float *vl, float *avgu, float *avgl) +void Canvas::getWavValues(int last, int lx, float *vu, float *vl, + float *avgu, float *avgl) { - float *lookup = data; - int dev = 1; - - int i = 2; - while(i < (lx - last) && mipmaps.find(i) != mipmaps.end()) { - lookup = mipmaps[i]; - dev = i; - i *= 2; - } + if(mipmap == NULL) return; - *vu = *vl = *avgu = *avgl = 0; - for(int i = last / dev; i < lx / dev; i++) { - float lval; - float uval; - float lpow; - float upow; - if(dev > 1) { - lval = -lookup[VALL(i)]; - uval = -lookup[VALU(i)]; - upow = -lookup[POWL(i)]; - lpow = -lookup[POWU(i)]; - } else { - lpow = upow = lval = uval = -lookup[i]; - } - if(lpow < 0.0) *avgl += lpow; - if(upow > 0.0) *avgu += upow; - if(lval > *vl) *vl = lval; - if(uval < *vu) *vu = uval; - } - - if((lx - last) != 0) { - *avgu /= (float)(lx - last); - *avgl /= (float)(lx - last); - } + MipMapValue val = mipmap->lookup(last, lx); + + *vu = val.max; + *vl = val.min; + *avgu = val.uavg; + *avgl = val.lavg; } void Canvas::updateWav() @@ -514,10 +443,15 @@ void Canvas::autoCreateSelections() } } + int minsize = 100; // attack. + float minval = 0.0001; // noise floor int to = i; - float runavg = fabs(data[to]); - while(runavg > 0.001 && to < (int)size) { - runavg = runavg * 0.99999 + fabs(data[to]) * 0.00001; + float runavg = fabs(data[from]); + while((runavg > minval || + to < from + minsize) && + to < (int)size) { + double p = 0.9; + runavg = runavg * p + fabs(data[to]) * (1 - p); to++; } _selections[from] = Selection(from, to, 2, (to - from) / 3); |