4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico#include "display/nr-filter-displacement-map.h"

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico#include "display/nr-filter-types.h"

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico#include "display/nr-filter-units.h"

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico#include "libnr/nr-pixops.h"

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNiconamespace NR {

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNicoFilterDisplacementMap::FilterDisplacementMap()

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico{}

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennerFilterPrimitive * FilterDisplacementMap::create() {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner return new FilterDisplacementMap();

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennerFilterDisplacementMap::~FilterDisplacementMap()

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner{}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennerint FilterDisplacementMap::render(FilterSlot &slot, FilterUnits const &units) {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner NRPixBlock *texture = slot.get(_input);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner NRPixBlock *map = slot.get(_input2);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner // Bail out if either one of source images is missing

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner if (!map || !texture) {

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico g_warning("Missing source image for feDisplacementMap (map=%d texture=%d)", _input, _input2);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico return 1;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico //TODO: check whether do we really need this check:

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (map->area.x1 <= map->area.x0 || map->area.y1 <= map->area.y0) return 0; //nothing to do!

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico NRPixBlock *out = new NRPixBlock;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico //are these checks really necessary?

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (out_w > map->area.x1 - out_x0) out_w = map->area.x1 - out_x0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (out_h > map->area.y1 - out_y0) out_h = map->area.y1 - out_y0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (out_x0 < map->area.x0){

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_x0 = map->area.x0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_w -= (map->area.x0 - out_x0);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (out_y0 < map->area.y0){

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_y0 = map->area.y0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_h -= (map->area.y0 - out_y0);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out->area.x0 = out_x0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out->area.y0 = out_y0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out->area.x1 = out_x0 + out_w;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out->area.y1 = out_y0 + out_h;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico nr_pixblock_setup_fast(out, map->mode, out->area.x0, out->area.y0, out->area.x1, out->area.y1, true);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico unsigned char *map_data = NR_PIXBLOCK_PX(map);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico unsigned char *texture_data = NR_PIXBLOCK_PX(texture);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico unsigned char *out_data = NR_PIXBLOCK_PX(out);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico int x, y;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico int in_w = map->area.x1 - map->area.x0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico int in_h = map->area.y1 - map->area.y0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico double coordx, coordy;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico Matrix trans = units.get_matrix_primitiveunits2pb();

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico double scalex = scale*trans.expansionX();

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico double scaley = scale*trans.expansionY();

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico for (x=0; x < out_w; x++){

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico for (y=0; y < out_h; y++){

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (x+out_x0-map->area.x0 >= 0 &&

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico x+out_x0-map->area.x0 < in_w &&

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner y+out_y0-map->area.y0 >= 0 &&

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico y+out_y0-map->area.y0 < in_h){

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico coordx = out_x0 - map->area.x0 + x + scalex * ( double(map_data[4*((x+out_x0-map->area.x0) + in_w*(y+out_y0-map->area.y0)) + Xchannel])/255 - 0.5);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico coordy = out_y0 - map->area.y0 + y + scaley * ( double(map_data[4*((x+out_x0-map->area.x0) + in_w*(y+out_y0-map->area.y0)) + Ychannel])/255 - 0.5);

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico if (coordx>=0 && coordx<in_w && coordy>=0 && coordy<in_h){

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y)] = texture_data[4*(int(coordx) + int(coordy)*in_w)];

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y) + 1] = texture_data[4*(int(coordx) + int(coordy)*in_w) + 1];

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y) + 2] = texture_data[4*(int(coordx) + int(coordy)*in_w) + 2];

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y) + 3] = texture_data[4*(int(coordx) + int(coordy)*in_w) + 3];

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico } else {

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y)] = 255;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y) + 1] = 255;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y) + 2] = 255;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico out_data[4*(x + out_w*y) + 3] = 0;

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

4a7ebbf91a516d588a7dcc45921c17a896b65f62JazzyNico }

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner out->empty = FALSE;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner slot.set(_output, out);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner return 0;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennervoid FilterDisplacementMap::set_input(int slot) {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner _input = slot;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennervoid FilterDisplacementMap::set_scale(double s) {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner scale = s;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennervoid FilterDisplacementMap::set_input(int input, int slot) {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner if (input == 0) _input = slot;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner if (input == 1) _input2 = slot;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennervoid FilterDisplacementMap::set_channel_selector(int s, FilterDisplacementMapChannelSelector channel) {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner if (channel > DISPLACEMENTMAP_CHANNEL_ALPHA || channel < DISPLACEMENTMAP_CHANNEL_RED) {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner g_warning("Selected an invalid channel value. (%d)", channel);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner return;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner }

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner if (s == 0) Xchannel = channel;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner if (s == 1) Ychannel = channel;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennervoid FilterDisplacementMap::area_enlarge(NRRectL &area, Matrix const &trans)

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner{

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner out_x0 = area.x0;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner out_y0 = area.y0;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner out_w = area.x1 - area.x0;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner out_h = area.y1 - area.y0;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner double scalex = scale*trans.expansionX();

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner double scaley = scale*trans.expansionY();

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner area.x0 -= (int)(scalex/2);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner area.x1 += (int)(scalex/2);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner area.y0 -= (int)(scaley/2);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner area.y1 += (int)(scaley/2);

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapennerFilterTraits FilterDisplacementMap::get_input_traits() {

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner return TRAIT_PARALLER;

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner}

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner} /* namespace NR */

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner

ffbd2f8fa3a83d1d4ad8cd672cf738ffaa5cdfeeapenner