mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-11-11 04:54:06 +01:00
320 lines
8.5 KiB
Plaintext
320 lines
8.5 KiB
Plaintext
function Node_Palette_Extract(_x, _y, _group = -1) : Node(_x, _y, _group) constructor {
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name = "Palette Extract";
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w = 96;
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inputs[| 0] = nodeValue("Surface in", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, 0);
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inputs[| 1] = nodeValue("Max colors", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 5, "Amount of color in a palette.")
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.rejectArray();
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inputs[| 2] = nodeValue("Seed", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, irandom(99999), "Random seed to be used to initialize K-mean algorithm.")
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.rejectArray();
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inputs[| 3] = nodeValue("Algorithm", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 0)
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.setDisplay(VALUE_DISPLAY.enum_scroll, [ "K-mean", "Frequency", "All colors" ])
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.rejectArray();
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inputs[| 4] = nodeValue("Animated surface", self, JUNCTION_CONNECT.input, VALUE_TYPE.boolean, false)
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.rejectArray();
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outputs[| 0] = nodeValue("Palette", self, JUNCTION_CONNECT.output, VALUE_TYPE.color, [ ])
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.setDisplay(VALUE_DISPLAY.palette);
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static getPreviewValue = function() { return inputs[| 0]; }
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input_display_list = [
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["Surface", true], 0, 4,
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["Palette", false], 3, 1, 2,
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]
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current_palette = [];
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current_color = 0;
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function sortPalette(pal) {
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array_sort(pal, function(c0, c1) {
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var r0 = color_get_red(c0) / 255;
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var r1 = color_get_red(c1) / 255;
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var g0 = color_get_green(c0) / 255;
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var g1 = color_get_green(c1) / 255;
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var b0 = color_get_blue(c0) / 255;
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var b1 = color_get_blue(c1) / 255;
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var l0 = sqrt( .241 * r0 + .691 * g0 + .068 * b0 );
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var l1 = sqrt( .241 * r1 + .691 * g1 + .068 * b1 );
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if(abs(l0 - l1) > 0.05) return l0 > l1;
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var h0 = color_get_hue(c0) / 255;
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var h1 = color_get_hue(c1) / 255;
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if(abs(h0 - h1) > 0.05) return h0 > h1;
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var s0 = color_get_saturation(c0) / 255;
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var s1 = color_get_saturation(c1) / 255;
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var v0 = color_get_value(c0) / 255;
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var v1 = color_get_value(c1) / 255;
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return s0 * v0 > s1 * v1;
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})
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}
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function extractKmean(_surfFull, _size, _seed) {
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var _surf = surface_create_valid(min(32, surface_get_width(_surfFull)), min(32, surface_get_height(_surfFull)));
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_size = max(1, _size);
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var ww = surface_get_width(_surf);
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var hh = surface_get_height(_surf);
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surface_set_target(_surf);
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draw_clear_alpha(0, 0);
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BLEND_OVERRIDE;
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gpu_set_texfilter(true);
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draw_surface_stretched(_surfFull, 0, 0, ww, hh);
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gpu_set_texfilter(false);
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BLEND_NORMAL;
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surface_reset_target();
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var c_buffer = buffer_create(ww * hh * 4, buffer_fixed, 2);
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var colors = [];
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buffer_get_surface(c_buffer, _surf, 0);
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buffer_seek(c_buffer, buffer_seek_start, 0);
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var _min = [ 1, 1, 1 ];
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var _max = [ 0, 0, 0 ];
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for( var i = 0; i < ww * hh; i++ ) {
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var b = buffer_read(c_buffer, buffer_u32);
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var c = b & ~(0b11111111 << 24);
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var a = b & (0b11111111 << 24);
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if(a == 0) continue;
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var col = [ color_get_hue(c) / 255, color_get_saturation(c) / 255, color_get_value(c) / 255, 0 ];
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array_push(colors, col);
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for( var j = 0; j < 3; j++ ) {
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_min[j] = min(_min[j], col[j]);
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_max[j] = max(_max[j], col[j]);
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}
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}
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buffer_delete(c_buffer);
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var cnt = [];
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random_set_seed(_seed);
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for( var i = 0; i < _size; i++ )
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cnt[i] = [ random(1), random(1), random(1), 0 ];
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repeat(8) {
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var _cnt = [];
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for( var i = 0; i < _size; i++ ) {
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_cnt[i][0] = cnt[i][0];
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_cnt[i][1] = cnt[i][1];
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_cnt[i][2] = cnt[i][2];
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}
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for( var i = 0; i < array_length(colors); i++ ) {
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var ind = 0;
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var dist = 999;
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var _cl = colors[i];
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for( var j = 0; j < _size; j++ ) {
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var _cn = cnt[j];
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var d = point_distance_3d(_cl[0], _cl[1], _cl[2], _cn[0], _cn[1], _cn[2]);
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if(d < dist) {
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dist = d;
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ind = j;
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}
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}
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colors[i][3] = ind;
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}
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for( var i = 0; i < _size; i++ )
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cnt[i] = [ 0, 0, 0, 0 ];
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for( var i = 0; i < array_length(colors); i++ ) {
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var _cl = colors[i];
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cnt[_cl[3]][0] += _cl[0];
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cnt[_cl[3]][1] += _cl[1];
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cnt[_cl[3]][2] += _cl[2];
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cnt[_cl[3]][3]++;
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}
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for( var i = 0; i < _size; i++ ) {
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cnt[i][0] = cnt[i][3]? cnt[i][0] / cnt[i][3] : 0;
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cnt[i][1] = cnt[i][3]? cnt[i][1] / cnt[i][3] : 0;
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cnt[i][2] = cnt[i][3]? cnt[i][2] / cnt[i][3] : 0;
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}
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var del = 0;
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for( var i = 0; i < _size; i++ ) {
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del = max(del, point_distance_3d(cnt[i][0], cnt[i][1], cnt[i][2], _cnt[i][0], _cnt[i][1], _cnt[i][2]));
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}
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if(del < 0.001) break;
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}
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var palette = [];
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for( var i = 0; i < _size; i++ ) {
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var closet = 0;
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var dist = 999;
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var _cl = cnt[i];
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for( var j = 0; j < array_length(colors); j++ ) {
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var _cn = colors[j];
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var d = point_distance_3d(_cl[0], _cl[1], _cl[2], _cn[0], _cn[1], _cn[2]);
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if(d < dist) {
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dist = d;
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closet = j;
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}
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}
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var clr = make_color_hsv(colors[closet][0] * 255, colors[closet][1] * 255, colors[closet][2] * 255);
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if(!array_exists(palette, clr))
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array_push(palette, clr);
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}
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surface_free(_surf);
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sortPalette(palette);
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return palette;
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}
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function extractAll(_surfFull) {
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var ww = surface_get_width(_surfFull);
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var hh = surface_get_height(_surfFull);
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var c_buffer = buffer_create(ww * hh * 4, buffer_fixed, 2);
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buffer_get_surface(c_buffer, _surfFull, 0);
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buffer_seek(c_buffer, buffer_seek_start, 0);
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var palette = [];
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for( var i = 0; i < ww * hh; i++ ) {
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var b = buffer_read(c_buffer, buffer_u32);
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var c = b & ~(0b11111111 << 24);
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var a = b & (0b11111111 << 24);
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if(a == 0) continue;
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c = make_color_rgb(color_get_red(c), color_get_green(c), color_get_blue(c));
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if(!array_exists(palette, c))
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array_push(palette, c);
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}
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buffer_delete(c_buffer);
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return palette;
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}
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function extractFrequence(_surfFull, _size) {
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var msize = 128;
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var _surf = surface_create_valid(min(msize, surface_get_width(_surfFull)), min(msize, surface_get_height(_surfFull)));
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_size = max(1, _size);
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var ww = surface_get_width(_surf);
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var hh = surface_get_height(_surf);
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surface_set_target(_surf);
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draw_clear_alpha(0, 0);
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BLEND_OVERRIDE;
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draw_surface_stretched(_surfFull, 0, 0, ww, hh);
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BLEND_NORMAL;
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surface_reset_target();
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var c_buffer = buffer_create(ww * hh * 4, buffer_fixed, 2);
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var colors = array_create(ww * hh);
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buffer_get_surface(c_buffer, _surf, 0);
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buffer_seek(c_buffer, buffer_seek_start, 0);
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var palette = [];
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var clrs = ds_map_create();
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for( var i = 0; i < ww * hh; i++ ) {
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var b = buffer_read(c_buffer, buffer_u32);
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var c = b & ~(0b11111111 << 24);
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var a = b & (0b11111111 << 24);
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if(a == 0) continue;
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c = make_color_rgb(color_get_red(c), color_get_green(c), color_get_blue(c));
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if(ds_map_exists(clrs, c))
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clrs[? c]++;
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else
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clrs[? c] = 0;
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}
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buffer_delete(c_buffer);
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var pr = ds_priority_create();
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var amo = ds_map_size(clrs);
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var k = ds_map_find_first(clrs);
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repeat(amo) {
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ds_priority_add(pr, k, clrs[? k]);
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k = ds_map_find_next(clrs, k);
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}
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for( var i = 0; i < _size; i++ ) {
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if(ds_priority_empty(pr)) break;
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array_push(palette, ds_priority_delete_max(pr));
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}
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ds_priority_destroy(pr);
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ds_map_destroy(clrs);
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return palette;
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}
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static step = function() {
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var _algo = inputs[| 3].getValue();
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inputs[| 1].setVisible(_algo != 2);
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inputs[| 2].setVisible(_algo == 0);
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}
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static extractPalette = function(_surf, _algo, _size, _seed) {
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if(!is_surface(_surf)) return [];
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switch(_algo) {
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case 0 : return extractKmean(_surf, _size, _seed);
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case 1 : return extractFrequence(_surf, _size);
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case 2 : return extractAll(_surf);
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}
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return [];
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}
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static extractPalettes = function() {
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var _surf = inputs[| 0].getValue();
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var _size = inputs[| 1].getValue();
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var _seed = inputs[| 2].getValue();
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var _algo = inputs[| 3].getValue();
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var res = [];
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if(is_surface(_surf)) {
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res = extractPalette(_surf, _algo, _size, _seed);
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} else if(is_array(_surf)) {
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res = array_create(array_length(_surf));
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for( var i = 0; i < array_length(_surf); i++ )
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res[i] = extractPalette(_surf[i], _algo, _size, _seed);
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}
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outputs[| 0].setValue(res);
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}
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static onInspectorUpdate = function() { extractPalettes(); }
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static onValueUpdate = function() { extractPalettes(); }
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static onValueFromUpdate = function() { extractPalettes(); }
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function update() {
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var willUpdate = inputs[| 4].getValue();
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if(willUpdate) extractPalettes();
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}
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static onDrawNode = function(xx, yy, _mx, _my, _s) {
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var bbox = drawGetBbox(xx, yy, _s);
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if(bbox.h < 1) return;
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drawPalette(outputs[| 0].getValue(), bbox.x0, bbox.y0, bbox.w, bbox.h);
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}
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} |