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Conez.cpp
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Conez.cpp
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/******************************************************************************
Conez filter plugin for Avisynth+ by V.C.Mohan
The image wraps around a cone/cylinder. base radius. top radius and
shading along cone length are the params
26 Feb 2021
********************************************************************************/
#include "VapourSynth.h"
#include "VSHelper.h"
typedef struct {
VSNodeRef *node;
const VSVideoInfo *vi;
VSNodeRef * bnode;
int StartFrame;
int EndFrame;
bool vert;
bool progressive;
int base;
int top;
float* cubic;
int quantiles;
int span;
} ConezData;
static void VS_CC conezInit(VSMap *in, VSMap *out, void **instanceData,
VSNode *node, VSCore *core, const VSAPI *vsapi)
{
ConezData *d = (ConezData *) * instanceData;
vsapi->setVideoInfo(d->vi, 1, node);
d->quantiles = 64;
d->span = 4;
d->cubic = (float*)vs_aligned_malloc(sizeof(float) * 4 * (d->quantiles + 1), 32);
CubicIntCoeff(d->cubic, d->quantiles);
}
static const VSFrameRef* VS_CC conezGetFrame(int in, int activationReason, void** instanceData,
void** frameData, VSFrameContext* frameCtx, VSCore* core, const VSAPI* vsapi)
{
ConezData* d = (ConezData*)*instanceData;
if (activationReason == arInitial)
{
vsapi->requestFrameFilter(in, d->node, frameCtx);
vsapi->requestFrameFilter(in, d->bnode, frameCtx);
}
else if (activationReason == arAllFramesReady)
{
const VSFrameRef* src = vsapi->getFrameFilter(in, d->node, frameCtx);
const VSFrameRef* bkg = vsapi->getFrameFilter(in, d->bnode, frameCtx);
if (in < d->StartFrame || in > d->EndFrame)
{
vsapi->freeFrame(bkg);
return src;
}
int n = in - d->StartFrame;
int nframes = d->EndFrame - d->StartFrame + 1;
VSFrameRef* dst = vsapi->copyFrame(bkg, core);
const VSFormat* fi = d->vi->format;
const unsigned char* sp[] = { NULL, NULL, NULL };
unsigned char* dp[] = { NULL, NULL, NULL };
int subH = fi->subSamplingH;
int subW = fi->subSamplingW;
int andH = (1 << subH) - 1;
int andW = (1 << subW) - 1;
int pitch[] = { 0,0,0 };
int nbytes = fi->bytesPerSample;
int nbits = fi->bitsPerSample;
int np = fi->numPlanes > 3 ? 3 : fi->numPlanes;
int ht = d->vi->height;
int wd = d->vi->width;
for (int p = 0; p < np; p++)
{
sp[p] = vsapi->getReadPtr(src, p);
dp[p] = vsapi->getWritePtr(dst, p);
pitch[p] = vsapi->getStride(dst, p) / nbytes;
}
// process
if (d->vert)
{
int diaTop = wd - ((wd - d->top) * n) / nframes;
int diaBot = wd - ((wd - d->base) * n) / nframes;
if (!d->progressive)
{
diaTop = d->top;
diaBot = d->base;
}
for (int h = 0; h < ht; h++)
{
// radius at current h.
int rad = (diaBot - ((diaBot - diaTop) * (ht - h)) / ht) / 2;
float ratio = (float)(wd / (M_PI * rad)); // width / (pi * r)
for (int w = 0; w < rad; w++)
{
// alfa is angle between vertical axis line through center , and line joining
//projection point on to circle perimeter.
// so angle = acos(x/r). alfa = (PI / 2 - angle).
// length of arc = r * alfa. Half perimeter = PI * rad
// mult ratio = wd /(half perimeter)
float angle = acos((float)w / (float)rad);
// float alfa = M_PI_2 - angle;
float x = (float)(rad * (M_PI_2 - angle));
float originalLocation = x * ratio;
// lower integer nearest
int wnew = (int)originalLocation;
// fraction is at this quantile
int qx = (int)((originalLocation - wnew) * d->quantiles);
if (fi->sampleType == stInteger && nbytes == 1)
{
for (int p = 0; p < np; p++)
{
uint8_t min = 0, max = 255;
if (fi->colorFamily == cmYUV)
{
min = 16;
max = 240;
}
const uint8_t* spp = sp[p];
uint8_t* dpp = dp[p];
if (p == 0 || fi->colorFamily == cmRGB || (subH == 0 && subW == 0))
{
int newval = (int)clamp( alongLineInterpolate(spp + wd / 2 + wnew,
1, d->span, qx, d->cubic), min, max ) ;
dpp[wd / 2 + w] = newval;
// symmetrical position
newval = (int)clamp(alongLineInterpolate(spp + wd / 2 - wnew ,
-1, d->span, qx, d->cubic), min, max);
dpp[ wd / 2 - w] = newval;
}
else
{
if ((w & andW) == 0 && (h & andH) == 0)
{
*(dpp + ((wd / 2 + w) >> subW) )
= *(spp + ( (wd / 2 + wnew) >> subW) );
*(dpp + ( (wd / 2 - w) >> subW) )
= *(spp + ( (wd / 2 - wnew) >> subW) );
}
}
}
}
if (fi->sampleType == stInteger && nbytes == 2)
{
for (int p = 0; p < np; p++)
{
uint16_t min = 0, max = (1 << nbits) - 1;
if (fi->colorFamily == cmYUV)
{
min = (16 << (nbits - 8) );
max = (240 << (nbits - 8) );
}
const uint16_t* spp = (uint16_t*)(sp[p]);
uint16_t* dpp = (uint16_t *)(dp[p]);
if (p == 0 || fi->colorFamily == cmRGB || (subH == 0 && subW == 0))
{
int newval = (int)clamp(alongLineInterpolate(spp + wd / 2 + wnew,
1, d->span, qx, d->cubic), min, max);
dpp[wd / 2 + w] = newval;
// symmetrical position
newval = (int)clamp(alongLineInterpolate(spp + wd / 2 - wnew,
-1, d->span, qx, d->cubic), min, max);
dpp[wd / 2 - w] = newval;
}
else
{
if ((w & andW) == 0 && (h & andH) == 0)
{
*(dpp + ((wd / 2 + w) >> subW))
= *(spp + ((wd / 2 + wnew) >> subW));
*(dpp + ((wd / 2 - w) >> subW))
= *(spp + ((wd / 2 - wnew) >> subW));
}
}
}
}
if (fi->sampleType == stFloat)
{
for (int p = 0; p < np; p++)
{
float min = 0, max = 1.0f;
if (fi->colorFamily == cmYUV && p > 0)
{
min = -0.5f;
max = 0.5f;
}
const float* spp = (float*)(sp[p]);
float* dpp = (float*)(dp[p]);
if (p == 0 || fi->colorFamily == cmRGB || (subH == 0 && subW == 0))
{
float newval = (float)clamp(alongLineInterpolate(spp + wd / 2 + wnew,
1, d->span, qx, d->cubic), min, max);
dpp[wd / 2 + w] = newval;
// symmetrical position
newval = (float)clamp(alongLineInterpolate(spp + wd / 2 - wnew,
-1, d->span, qx, d->cubic), min, max);
dpp[wd / 2 - w] = newval;
}
else
{
if ((w & andW) == 0 && (h & andH) == 0)
{
*(dpp + ((wd / 2 + w) >> subW))
= *(spp + ((wd / 2 + wnew) >> subW));
*(dpp + ((wd / 2 - w) >> subW))
= *(spp + ((wd / 2 - wnew) >> subW));
}
}
}
}
}
for (int p = 0; p < np; p++)
{
if (p == 0 || (h & andH) == 0)
{
sp[p] += pitch[p] * nbytes;
dp[p] += pitch[p] * nbytes;
}
}
}
}
else // if (!d->vert) Horizontal orientation
{
int diaTop = ht - ((ht - d->top) * n) / nframes;
int diaBot = ht - ((ht - d->base) * n) / nframes;
if (!d->progressive)
{
diaTop = d->top;
diaBot = d->base;
}
for (int w = 0; w < wd; w++)
{
// even number as we will divide by 2 for each half.
// diameter of cone at this value of W
int rad = (diaBot - ((diaBot - diaTop) * (wd - w)) / wd) / 2;
float ratio = (float)(ht / ( M_PI * rad));
//unsigned char max = 255;
for (int h = 0; h < rad; h++)
{
// alfa is angle between vertical axis line through center , and line joining
//projection point on to circle perimeter.
// so angle = acos(x/r). alfa = (PI / 2 - angle).
// length of arc = r * alfa. Half perimeter = PI * rad
// mult ratio = wd /(half perimeter)
float angle = acos((float)h / (float)rad);
// float alfa = M_PI_2 - angle;
float y = (float)(rad * (M_PI_2 - angle));
float originalLocation = y * ratio;
int hOrig = (int)originalLocation;
int qy = (int)((originalLocation - hOrig) * d->quantiles);
for (int p = 0; p < np; p++)
{
if (fi->sampleType == stInteger && nbytes == 1)
{
uint8_t min = 0, max = 255;
if (fi->colorFamily == cmYUV)
{
min = 16;
max = 240;
}
const uint8_t* spp = sp[p];
uint8_t* dpp = dp[p];
if (p == 0 || fi->colorFamily == cmRGB || (subH == 0 && subW == 0))
{
int newval = (int)clamp(alongLineInterpolate(spp + (ht / 2 + hOrig) * pitch[p] + w,
pitch[p], d->span, qy, d->cubic), min, max);
dpp[(ht / 2 + h) * pitch[p] + w] = newval;
// symmetrical position
newval = (int)clamp(alongLineInterpolate(spp + (ht / 2 - hOrig) * pitch[p] + w,
-pitch[p], d->span, qy, d->cubic), min, max);
dpp[(ht / 2 - h) * pitch[p] + w] = newval;
}
else
{
if ((w & andW) == 0 && (h & andH) == 0)
{
*(dpp + ((ht / 2 + h) >> subH) * pitch[p] + (w >> subW))
= *(spp + ((ht / 2 + hOrig) >> subH) * pitch[p] + (w >> subW));
*(dpp + ((ht / 2 - h) >> subH) * pitch[p] + (w >> subW))
= *(spp + ((ht / 2 - hOrig) >> subH) * pitch[p] + (w >> subW));
}
}
}
if (fi->sampleType == stInteger && nbytes == 2)
{
uint16_t min = 0, max = (1 << nbits) - 1;
if (fi->colorFamily == cmYUV)
{
min = (16 << (nbits - 8));
max = (240 << (nbits - 8));
}
const uint16_t* spp = (uint16_t*)(sp[p]);
uint16_t* dpp = (uint16_t*)(dp[p]);
if (p == 0 || fi->colorFamily == cmRGB || (subH == 0 && subW == 0))
{
int newval = (int)clamp(alongLineInterpolate(spp + (ht / 2 + hOrig) * pitch[p] + w,
pitch[p], d->span, qy, d->cubic), min, max);
dpp[(ht / 2 + h) * pitch[p] + w] = newval;
// symmetrical position
newval = (int)clamp(alongLineInterpolate(spp + (ht / 2 - hOrig) * pitch[p] + w,
-pitch[p], d->span, qy, d->cubic), min, max);
dpp[(ht / 2 - h) * pitch[p] + w] = newval;
}
else
{
if ((w & andW) == 0 && (h & andH) == 0)
{
*(dpp + ((ht / 2 + h) >> subH) * pitch[p] + (w >> subW))
= *(spp + ((ht / 2 + hOrig) >> subH) * pitch[p] + (w >> subW));
*(dpp + ((ht / 2 - h) >> subH) * pitch[p] + (w >> subW))
= *(spp + ((ht / 2 - hOrig) >> subH) * pitch[p] + (w >> subW));
}
}
}
if (fi->sampleType == stFloat)
{
float min = 0, max = 1.0f;
if (fi->colorFamily == cmYUV && p > 0)
{
min = -0.5f;
max = 0.5f;
}
const float* spp = (float*)(sp[p]);
float* dpp = (float*)(dp[p]);
if (p == 0 || fi->colorFamily == cmRGB || (subH == 0 && subW == 0))
{
float newval = clamp(alongLineInterpolate(spp + (ht / 2 + hOrig) * pitch[p] + w,
pitch[p], d->span, qy, d->cubic), min, max);
dpp[(ht / 2 + h) * pitch[p] + w] = newval;
// symmetrical position
newval = clamp(alongLineInterpolate(spp + (ht / 2 - hOrig) * pitch[p] + w,
-pitch[p], d->span, qy, d->cubic), min, max);
dpp[(ht / 2 - h) * pitch[p] + w] = newval;
}
else
{
if ((w & andW) == 0 && (h & andH) == 0)
{
*(dpp + ((ht / 2 + h) >> subH) * pitch[p] + (w >> subW))
= *(spp + ((ht / 2 + hOrig) >> subH) * pitch[p] + (w >> subW));
*(dpp + ((ht / 2 - h) >> subH) * pitch[p] + (w >> subW))
= *(spp + ((ht / 2 - hOrig) >> subH) * pitch[p] + (w >> subW));
}
}
}
}
}
}
}
vsapi->freeFrame(src);
vsapi->freeFrame(bkg);
return dst;
}
return 0;
}
static void VS_CC conezFree(void *instanceData, VSCore *core, const VSAPI *vsapi) {
ConezData *d = (ConezData *)instanceData;
vsapi->freeNode(d->node);
vsapi->freeNode(d->bnode);
vs_aligned_free(d->cubic);
free(d);
}
static void VS_CC conezCreate(const VSMap *in, VSMap *out, void *userData, VSCore *core, const VSAPI *vsapi) {
ConezData d;
ConezData *data;
int err;
d.node = vsapi->propGetNode(in, "clip", 0, 0);
d.vi = vsapi->getVideoInfo(d.node);
d.bnode = vsapi->propGetNode(in, "bkg", 0, 0);
const VSVideoInfo* bvi = vsapi->getVideoInfo(d.bnode);
const VSFormat* fi = d.vi->format;
if (fi->colorFamily != cmRGB && fi->colorFamily != cmYUV && fi->colorFamily != cmGray
&& fi->sampleType != stInteger && fi->sampleType != stFloat)
{
vsapi->setError(out, "Conez: only RGB, YUV, Gray color formats, with integer or float samples as Input allowed ");
vsapi->freeNode(d.node);
vsapi->freeNode(d.bnode);
return;
}
if ( ! isConstantFormat(d.vi) && ! isSameFormat(d.vi, bvi) && d.vi->numFrames > bvi->numFrames)
{
vsapi->setError(out, "Conez: both clips must have constant identical formats and clip should not have more number of frames than bkg ");
vsapi->freeNode(d.node);
vsapi->freeNode(d.bnode);
return;
}
d.StartFrame = int64ToIntS(vsapi->propGetInt(in, "sf", 0, &err));
if (err)
d.StartFrame = 0;
else if (d.StartFrame < 0 || d.StartFrame > d.vi->numFrames - 1)
{
vsapi->setError(out, "Conez: sf must be within video");
vsapi->freeNode(d.node);
vsapi->freeNode(d.node);
return;
}
d.EndFrame = int64ToIntS(vsapi->propGetInt(in, "ef", 0, &err));
if (err)
d.EndFrame = d.vi->numFrames - 1;
else if (d.EndFrame < 0 || d.EndFrame > d.vi->numFrames - 1 || d.EndFrame < d.StartFrame)
{
vsapi->setError(out, "Conez: ef must be within video and not less than sf");
vsapi->freeNode(d.node);
vsapi->freeNode(d.node);
return;
}
d.vert = !! int64ToIntS(vsapi->propGetInt(in, "vert", 0, &err));
if (err)
d.vert = true;
else if (d.vert == 0)
d.vert = false;
else
d.vert = true;
d.progressive = !!int64ToIntS(vsapi->propGetInt(in, "prog", 0, &err));
if (err)
d.progressive = true;
else if (d.progressive == 0)
d.progressive = false;
else
d.progressive = true;
int temp = (int)(((d.vert) ? d.vi->width - 8 : d.vi->height - 8) / M_PI_2);
d.top = int64ToIntS(vsapi->propGetInt(in, "top", 0, &err));
if (err)
d.top = temp / 8;
else if (d.top < 4 || d.top > temp )
{
vsapi->setError(out, "Conez: top can be 8 to frame width - 8 for vert and frame height - 8 for hor");
vsapi->freeNode(d.node);
vsapi->freeNode(d.node);
return;
}
d.base = int64ToIntS(vsapi->propGetInt(in, "base", 0, &err));
if (err)
d.base = temp ;
else if (d.base < 8 || d.base > temp)
{
vsapi->setError(out, "Conez: base can be 8 to frame width - 8 for vert and frame height - 8 for hor");
vsapi->freeNode(d.node);
vsapi->freeNode(d.node);
return;
}
data = (ConezData*)malloc(sizeof(d));
*data = d;
vsapi->createFilter(in, out, "Conez", conezInit, conezGetFrame, conezFree, fmParallel, 0, data, core);
}
/*
//////////////////////////////////////////
// Init
VS_EXTERNAL_API(void) VapourSynthPluginInit(VSConfigPlugin configFunc, VSRegisterFunction registerFunc, VSPlugin *plugin) {
configFunc("com.conez.vfx", "conez", "VapourSynth Filter Skeleton", VAPOURSYNTH_API_VERSION, 1, plugin);
registerFunc("Conez", "clip:clip;bkg:clip;sf:int:opt;ef:int:opt;"
"vert:int:opt;prog:int:opt;top:int:opt;base:int:opt;", conezCreate, 0, plugin);
}
*/