Pixel-Composer/scripts/node_palette_extract/node_palette_extract.gml
2024-12-02 11:31:44 +07:00

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function Node_Palette_Extract(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
name = "Palette Extract";
setDimension(96, 48);
newInput(0, nodeValue_Surface("Surface in", self));
newInput(1, nodeValue_Int("Max colors", self, 5, "Amount of color in a palette."))
.rejectArray();
newInput(2, nodeValueSeed(self))
.rejectArray();
newInput(3, nodeValue_Enum_Scroll("Algorithm", self, 0, { data: [ "K-mean", "Frequency", "All colors" ], update_hover: false }))
.rejectArray();
newInput(4, nodeValue_Enum_Scroll("Color Space", self, 1, { data: [ "RGB", "HSV" ], update_hover: false }))
.rejectArray();
newInput(5, nodeValue_Surface("Mask", self));
newOutput(0, nodeValue_Output("Palette", self, VALUE_TYPE.color, [ ]))
.setDisplay(VALUE_DISPLAY.palette);
static getPreviewValues = function() { return getInputData(0); }
input_display_list = [
["Surfaces", true], 0, 5,
["Palette", false], 3, 4, 1, 2,
]
temp_surface = [ 0 ];
current_palette = [];
current_color = 0;
extraction_step = 0;
extraction_total = 0;
extraction_current = 0;
attribute_surface_depth();
static processData_prebatch = function() {
setDimension(96, process_length[0] * 32);
}
function sortPalette(pal) {
array_sort(pal, function(c0, c1) {
var r0 = _color_get_red(c0), r1 = _color_get_red(c1);
var g0 = _color_get_green(c0), g1 = _color_get_green(c1);
var b0 = _color_get_blue(c0), b1 = _color_get_blue(c1);
var l0 = sqrt( .241 * r0 + .691 * g0 + .068 * b0 );
var l1 = sqrt( .241 * r1 + .691 * g1 + .068 * b1 );
if(abs(l0 - l1) > 0.05) return l0 > l1;
var h0 = _color_get_hue(c0);
var h1 = _color_get_hue(c1);
if(abs(h0 - h1) > 0.05) return h0 > h1;
var s0 = _color_get_saturation(c0);
var s1 = _color_get_saturation(c1);
var v0 = _color_get_value(c0);
var v1 = _color_get_value(c1);
return s0 * v0 > s1 * v1;
})
}
function extractKmean(_surfFull, _size, _seed) {
var _space = getInputData(4);
var _surf = surface_create_valid(min(32, surface_get_width_safe(_surfFull)), min(32, surface_get_height_safe(_surfFull)), attrDepth());
_size = max(1, _size);
var ww = surface_get_width_safe(_surf);
var hh = surface_get_height_safe(_surf);
surface_set_shader(_surf, noone);
draw_surface_stretched_safe(_surfFull, 0, 0, ww, hh);
surface_reset_shader();
var c_buffer = buffer_create(ww * hh * 4, buffer_fixed, 4);
var colors = array_create(ww * hh), ind = 0;
buffer_get_surface(c_buffer, _surf, 0);
buffer_seek(c_buffer, buffer_seek_start, 0);
var _min = [ 1, 1, 1 ];
var _max = [ 0, 0, 0 ];
var a, b, c, col;
for( var i = 0; i < ww * hh; i++ ) {
b = buffer_read(c_buffer, buffer_u32);
c = b & ~(0b11111111 << 24);
a = b & (0b11111111 << 24);
if(a == 0) continue;
switch(_space) {
case 0 : col = [ _color_get_red(c), _color_get_green(c), _color_get_blue(c), 0 ]; break;
case 1 : col = [ _color_get_hue(c), _color_get_saturation(c), _color_get_value(c), 0 ]; break;
case 2 : col = [ _color_get_hue(c), _color_get_saturation(c), _color_get_value(c), 0 ]; break;
}
colors[ind++] = col;
_min[0] = min(_min[0], col[0]); _max[0] = max(_max[0], col[0]);
_min[1] = min(_min[1], col[1]); _max[1] = max(_max[1], col[1]);
_min[2] = min(_min[2], col[2]); _max[2] = max(_max[2], col[2]);
}
array_resize(colors, ind);
buffer_delete(c_buffer);
random_set_seed(_seed);
var cnt = array_create_ext(_size, function() /*=>*/ {return [ random(1), random(1), random(1), 0 ]});
repeat(8) {
// var _cnt = array_create_ext(_size, (i) => [ cnt[i][0], cnt[i][1], cnt[i][2], 0 ]);
for( var i = 0, n = array_length(colors); i < n; i++ ) {
var ind = 0;
var dist = 999;
var _cl = colors[i];
for( var j = 0; j < _size; j++ ) {
var _cn = cnt[j];
var d = point_distance_3d(_cl[0], _cl[1], _cl[2], _cn[0], _cn[1], _cn[2]);
if(d < dist) {
dist = d;
ind = j;
}
}
colors[i][3] = ind;
}
for( var i = 0; i < _size; i++ )
cnt[i] = [ 0, 0, 0, 0 ];
for( var i = 0, n = array_length(colors); i < n; i++ ) {
var _cl = colors[i];
var _co = _cl[3];
cnt[_co][0] += _cl[0];
cnt[_co][1] += _cl[1];
cnt[_co][2] += _cl[2];
cnt[_co][3]++;
}
for( var i = 0; i < _size; i++ ) {
var _cc = cnt[i];
cnt[i][0] = _cc[3]? _cc[0] / _cc[3] : 0;
cnt[i][1] = _cc[3]? _cc[1] / _cc[3] : 0;
cnt[i][2] = _cc[3]? _cc[2] / _cc[3] : 0;
}
// var del = array_reduce(cnt, (prev, cur, i) => max(prev, point_distance_3d(cnt[i][0], cnt[i][1], cnt[i][2], cur[0], cur[1], cur[2])), 0);
// if(del < 0.001) break;
}
var palette = array_create(_size), ind = 0;
var clr;
for( var i = 0; i < _size; i++ ) {
var closet = 0;
var dist = 999;
var _cl = cnt[i];
for( var j = 0, n = array_length(colors); j < n; j++ ) {
var _cn = colors[j];
var d = point_distance_3d(_cl[0], _cl[1], _cl[2], _cn[0], _cn[1], _cn[2]);
if(d < dist) {
dist = d;
closet = j;
}
}
var _cc = colors[closet];
switch(_space) {
case 0 : clr = make_color_rgba(_cc[0] * 255, _cc[1] * 255, _cc[2] * 255, 255); break;
case 1 : clr = make_color_hsva(_cc[0] * 255, _cc[1] * 255, _cc[2] * 255, 255); break;
case 2 : clr = make_color_hsva(_cc[0] * 255, _cc[1] * 255, _cc[2] * 255, 255); break;
}
palette[ind++] = clr;
}
surface_free(_surf);
var palLen = array_unique_ext(palette, 0, ind);
array_resize(palette, palLen);
sortPalette(palette);
return palette;
}
function extractAll(_surfFull) {
var ww = surface_get_width_safe(_surfFull);
var hh = surface_get_height_safe(_surfFull);
var c_buffer = buffer_create(ww * hh * 4, buffer_fixed, 4);
buffer_get_surface(c_buffer, _surfFull, 0);
buffer_seek(c_buffer, buffer_seek_start, 0);
var amo = ww * hh;
var palette = array_create(amo), ind = 0;
var bm = 0b11111111 << 24;
for( var i = 0; i < amo; i++ ) {
var c = buffer_read(c_buffer, buffer_u32);
if(c & bm == 0) continue;
palette[ind++] = c;
}
buffer_delete(c_buffer);
var palLen = array_unique_ext(palette, 0, ind);
array_resize(palette, palLen);
return palette;
}
function extractFrequence(_surfFull, _size) {
var msize = 128;
var _surf = surface_create_valid(min(msize, surface_get_width_safe(_surfFull)), min(msize, surface_get_height_safe(_surfFull)));
_size = max(1, _size);
var ww = surface_get_width_safe(_surf);
var hh = surface_get_height_safe(_surf);
surface_set_target(_surf);
DRAW_CLEAR
BLEND_OVERRIDE
draw_surface_stretched_safe(_surfFull, 0, 0, ww, hh);
BLEND_NORMAL
surface_reset_target();
var c_buffer = buffer_create(ww * hh * 4, buffer_fixed, 2);
var colors = array_create(ww * hh);
buffer_get_surface(c_buffer, _surf, 0);
buffer_seek(c_buffer, buffer_seek_start, 0);
var clrs = ds_map_create();
for( var i = 0; i < ww * hh; i++ ) {
var b = buffer_read(c_buffer, buffer_u32);
var c = b;
var a = b & (0b_1111_1111 << 24) >> 24;
if(a == 0) continue;
c = make_color_rgba(color_get_red(c), color_get_green(c), color_get_blue(c), color_get_alpha(c));
if(ds_map_exists(clrs, c)) clrs[? c].amount++;
else clrs[? c] = { color: c, amount: 1 };
}
buffer_delete(c_buffer);
var pr = ds_priority_create();
var k = ds_map_find_first(clrs);
var amo = ds_map_size(clrs);
repeat(amo) {
ds_priority_add(pr, clrs[? k].color, clrs[? k].amount);
k = ds_map_find_next(clrs, k);
}
var amo = min(_size, ds_priority_size(pr));
var pal = array_create(amo), ind = 0;
repeat(amo) { pal[ind++] = ds_priority_delete_max(pr); }
ds_priority_destroy(pr);
ds_map_destroy(clrs);
return pal;
}
static step = function() {
var _algo = getInputData(3);
inputs[1].setVisible(_algo != 2);
inputs[2].setVisible(_algo == 0);
inputs[4].setVisible(_algo == 0);
}
static extractPalette = function(_surf, _algo, _size, _seed) {
if(!is_surface(_surf)) return [];
switch(_algo) {
case 0 : return extractKmean(_surf, _size, _seed);
case 1 : return extractFrequence(_surf, _size);
case 2 : return extractAll(_surf);
}
return [];
}
static processData = function(_outSurf, _data, _output_index, _array_index) {
var _surf = _data[0];
var _size = _data[1];
var _seed = _data[2];
var _algo = _data[3];
var _mask = _data[5];
if(!is_surface(_surf)) return;
if(!is_surface(_mask)) return extractPalette(_surf, _algo, _size, _seed);
var _dim = surface_get_dimension(_surf);
temp_surface[0] = surface_verify(temp_surface[0], _dim[0], _dim[1]);
surface_set_target(temp_surface[0]);
DRAW_CLEAR
BLEND_OVERRIDE
draw_surface(_surf, 0, 0);
BLEND_MULTIPLY
draw_surface(_mask, 0, 0);
BLEND_NORMAL
surface_reset_target();
return extractPalette(temp_surface[0], _algo, _size, _seed);
}
static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) {
var bbox = drawGetBbox(xx, yy, _s);
if(bbox.h < 1) return;
var pal = outputs[0].getValue();
if(array_empty(pal)) return;
if(!is_array(array_safe_get(pal, 0))) pal = [ pal ];
var _y = bbox.y0;
var gh = bbox.h / array_length(pal);
for( var i = 0, n = array_length(pal); i < n; i++ ) {
drawPalette(pal[i], bbox.x0, _y, bbox.w, gh);
_y += gh;
}
}
}