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/*
$Id: gem.c 4058 2008-07-25 00:57:15Z matju $
GridFlow
Copyright (c) 2001-2008 by Mathieu Bouchard
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See file ../COPYING for further informations on licensing terms.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../gridflow.h.fcs"
#include "Base/GemPixDualObj.h"
struct GridToPix;
struct GridToPixHelper : GemPixObj {
GridToPix *boss;
CPPEXTERN_HEADER(GridToPixHelper,GemPixObj)
public:
GridToPixHelper () {}
virtual void startRendering();
virtual void render(GemState *state);
virtual bool isRunnable () {return true;} // required to keep GEM 0.9.1 (the real 0.9.1) happy
};
CPPEXTERN_NEW(GridToPixHelper)
// in 0: gem
// in 1: grid
// out 0: gem
\class GridToPix : FObject {
GridToPixHelper *helper;
P<BitPacking> bit_packing;
pixBlock m_pixBlock;
\attr bool yflip;
GridToPix (BFObject *bself, MESSAGE) : FObject(bself,MESSAGE2) {
yflip = false;
imageStruct &im = m_pixBlock.image = imageStruct();
im.ysize = 1;
im.xsize = 1;
im.csize = 4;
im.format = GL_RGBA;
im.type = GL_UNSIGNED_BYTE;
im.allocate();
*(int*)im.data = 0x0000ff;
uint32 mask[4] = {0x0000ff,0x00ff00,0xff0000,0x000000};
bit_packing = new BitPacking(is_le(),4,4,mask);
helper = new GridToPixHelper;
helper->boss = this;
bself->gemself = helper;
}
~GridToPix () {}
\grin 1 int
};
GRID_INLET(1) {
if (in->dim->n != 3) RAISE("expecting 3 dimensions: rows,columns,channels");
if (in->dim->get(2) != 4) RAISE("expecting 4 channels (got %d)",in->dim->get(2));
in->set_chunk(1);
imageStruct &im = m_pixBlock.image;
im.clear();
im.ysize = in->dim->get(0);
im.xsize = in->dim->get(1);
im.csize = in->dim->get(2);
im.type = GL_UNSIGNED_BYTE;
im.allocate();
im.format = GL_RGBA;
/*
switch (in->dim->get(2)) {
case 4: im.format = GL_RGBA; break;
default: RAISE("you shouldn't see this error message.");
}
*/
} GRID_FLOW {
uint8 *buf = (uint8 *)m_pixBlock.image.data;
/*!@#$ it would be nice to skip the bitpacking when we can */
long sxc = in->dim->prod(1);
long sx = in->dim->v[1];
long sy = in->dim->v[0];
if (yflip) {for (long y= dex/sxc; n; data+=sxc, n-=sxc, y++) bit_packing->pack(sx,data,buf+y*sxc);}
else {for (long y=sy-1-dex/sxc; n; data+=sxc, n-=sxc, y--) bit_packing->pack(sx,data,buf+y*sxc);}
} GRID_END
\end class {
install("#to_pix",2,0); // outlets are 0 because GEM makes its own outlet instead
add_creator("#export_pix");
GridToPixHelper::real_obj_setupCallback(fclass->bfclass);
}
void GridToPixHelper::obj_setupCallback(t_class *) {}
void GridToPixHelper::startRendering() {boss->m_pixBlock.newimage = 1;}
void GridToPixHelper::render(GemState *state) {state->image = &boss->m_pixBlock;}
//------------------------------------------------------------------------
struct GridFromPix;
struct GridFromPixHelper : GemPixObj {
GridFromPix *boss;
CPPEXTERN_HEADER(GridFromPixHelper,GemPixObj)
public:
GridFromPixHelper () {}
virtual void render(GemState *state);
virtual bool isRunnable () {return true;} // required to keep GEM 0.9.1 (the real 0.9.1) happy
};
CPPEXTERN_NEW(GridFromPixHelper)
// in 0: gem (todo: auto 0 = manual mode; bang = send next frame; type = number type attr)
// out 0: grid
\class GridFromPix : FObject {
GridFromPixHelper *helper;
P<BitPacking> bit_packing;
\attr bool yflip;
GridFromPix () : FObject(0,0,0,0) {RAISE("don't call this. this exists only to make GEM happy.");}
GridFromPix (BFObject *bself, MESSAGE) : FObject(bself,MESSAGE2) {
uint32 mask[4] = {0x0000ff,0x00ff00,0xff0000,0x000000};
bit_packing = new BitPacking(is_le(),4,4,mask);
yflip = false;
bself->gemself = (GemPixObj *)this;
helper = new GridFromPixHelper;
helper->boss = this;
bself->gemself = helper;
}
virtual ~GridFromPix () {}
void render(GemState *state) {
if (!state->image) {::post("gemstate has no pix"); return;}
imageStruct &im = state->image->image;
if (im.format != GL_RGBA ) {::post("can't produce grid from pix format %d",im.format); return;}
if (im.type != GL_UNSIGNED_BYTE) {::post("can't produce grid from pix type %d", im.type ); return;}
int32 v[] = { im.ysize, im.xsize, im.csize };
GridOutlet out(this,0,new Dim(3,v));
long sxc = im.xsize*im.csize;
long sy = v[0];
uint8 buf[sxc];
for (int y=0; y<v[0]; y++) {
uint8 *data = (uint8 *)im.data+sxc*(yflip?y:sy-1-y);
bit_packing->pack(im.xsize,data,buf);
out.send(sxc,buf);
}
}
};
void GridFromPixHelper::obj_setupCallback(t_class *) {}
\end class {
install("#from_pix",2,1);
add_creator("#import_pix");
GridFromPixHelper::real_obj_setupCallback(fclass->bfclass);
}
void GridFromPixHelper::render(GemState *state) {boss->render(state);}
//------------------------------------------------------------------------
void startup_gem () {
\startall
}
/*
virtual void processRGBAImage(imageStruct &image) {}
virtual void processRGBImage (imageStruct &image) {}
virtual void processGrayImage(imageStruct &image) {}
virtual void processYUVImage (imageStruct &image) {}
*/
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