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Tanasart 2024-06-09 15:35:02 +07:00
parent 0bfcef97b5
commit 641efb3868
3 changed files with 139 additions and 18 deletions
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45
scripts/node_jpeg/node_jpeg.gml
View file

@ -22,11 +22,19 @@ function Node_JPEG(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) cons
__init_mask_modifier(5); // inputs 8, 9
inputs[| 10] = nodeValue("Transformation", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 0)
.setDisplay(VALUE_DISPLAY.enum_scroll, [ "Cosine", "Zigzag", "Smooth Zigzag", "Step" ]);
inputs[| 11] = nodeValue("Phase", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 0)
.setDisplay(VALUE_DISPLAY.rotation);
inputs[| 12] = nodeValue("Deconstruct Only", self, JUNCTION_CONNECT.input, VALUE_TYPE.boolean, false)
outputs[| 0] = nodeValue("Surface out", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
input_display_list = [ 1,
["Surface", false], 0, 5, 6, 7,
["Effects", false], 2, 3, 4,
["Effects", false], 2, 3, 4, 10, 11, 12,
];
temp_surface = array_create(2);
@ -38,29 +46,38 @@ function Node_JPEG(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) cons
} #endregion
static processData = function(_outSurf, _data, _output_index, _array_index) { #region
var _surf = _data[0];
var _patc = _data[2];
var _comp = _data[3];
var _recn = _data[4];
var _surf = _data[0];
var _patc = _data[2];
var _comp = _data[3];
var _recn = _data[4];
var _tran = _data[10];
var _phas = _data[11];
var _recon = _data[12];
var _dim = surface_get_dimension(_surf);
for( var i = 0; i < 2; i++ ) temp_surface[i] = surface_verify(temp_surface[i], _dim[0], _dim[1], surface_rgba16float);
surface_set_shader(temp_surface[0], sh_jpeg_dct);
shader_set_f("dimension", _dim);
shader_set_i("patch", _patc);
shader_set_f("compression", _comp);
draw_surface_safe(_surf);
surface_reset_shader();
if(!_recon) {
surface_set_shader(temp_surface[0], sh_jpeg_dct);
shader_set_f("dimension", _dim);
shader_set_i("patch", _patc);
shader_set_f("compression", _comp);
shader_set_f("phase", degtorad(_phas));
shader_set_i("transform", _tran);
draw_surface_safe(_surf);
surface_reset_shader();
}
surface_set_shader(temp_surface[1], sh_jpeg_recons);
shader_set_f("dimension", _dim);
shader_set_i("patch", _patc);
shader_set_i("reconstruct", _recn);
shader_set_f("phase", degtorad(_phas));
shader_set_i("transform", _tran);
draw_surface_safe(temp_surface[0]);
draw_surface_safe(_recon? _surf : temp_surface[0]);
surface_reset_shader();
surface_set_shader(_outSurf);

56
shaders/sh_jpeg_dct/sh_jpeg_dct.fsh
View file

@ -6,9 +6,55 @@ varying vec4 v_vColour;
uniform vec2 dimension;
uniform int patch;
uniform int transform;
uniform float compression;
uniform float phase;
float DCTcoeff(vec2 k, vec2 x) { return cos(PI * k.x * x.x) * cos(PI * k.y * x.y); }
float DCTcoeff(vec2 k, vec2 x) { return cos(PI * k.x * x.x + phase) * cos(PI * k.y * x.y + phase); }
float ZIGcoeff(vec2 k, vec2 x) {
float a, b;
float fx = fract(k.x * x.x + phase / PI / 2. + .5);
a = fx < 0.5? fx * 2. : (1. - fx) * 2.;
a = a * 2. - 1.;
float fy = fract(k.y * x.y + phase / PI / 2. + .5);
b = fy < 0.5? fy * 2. : (1. - fy) * 2.;
b = b * 2. - 1.;
return a * b;
}
float SMTcoeff(vec2 k, vec2 x) {
float a, b;
float fx = fract(k.x * x.x + phase / PI / 2. + .5);
a = fx < 0.5? fx * 2. : (1. - fx) * 2.;
a = smoothstep(0., 1., a);
a = a * 2. - 1.;
float fy = fract(k.y * x.y + phase / PI / 2. + .5);
b = fy < 0.5? fy * 2. : (1. - fy) * 2.;
b = smoothstep(0., 1., b);
b = b * 2. - 1.;
return a * b;
}
float STPcoeff(vec2 k, vec2 x) {
float a, b;
float sp = 1. / 2.;
float _fx = fract(k.x * x.x + phase / PI / 2.);
float fx = _fx >= 0.5 - sp && _fx <= 0.5 + sp? 0. : step(0.5, _fx);
a = a * 2. - 1.;
float _fy = fract(k.y * x.y + phase / PI / 2.);
float fy = _fy >= 0.5 - sp && _fy <= 0.5 + sp? 0. : step(0.5, _fy);
b = b * 2. - 1.;
return a * b;
}
float round(float val) { return fract(val) > 0.5? ceil(val) : floor(val); }
vec4 round(vec4 val) { return vec4(round(val.x), round(val.y), round(val.z), round(val.w)); }
@ -24,7 +70,13 @@ void main() {
for(int x = 0; x < patch; ++x)
for(int y = 0; y < patch; ++y) {
vec4 s = texture2D( gm_BaseTexture, (K + vec2(x, y) + .5) / dimension);
float c = DCTcoeff(k, (vec2(x, y) + .5) / float(patch));
float c = 0.;
if(transform == 0) c = DCTcoeff(k, (vec2(x, y) + .5) / float(patch));
else if(transform == 1) c = ZIGcoeff(k, (vec2(x, y) + .5) / float(patch));
else if(transform == 2) c = SMTcoeff(k, (vec2(x, y) + .5) / float(patch));
else if(transform == 3) c = STPcoeff(k, (vec2(x, y) + .5) / float(patch));
c *= k.x < .5? SQRT2 : 1.;
c *= k.y < .5? SQRT2 : 1.;

56
shaders/sh_jpeg_recons/sh_jpeg_recons.fsh
View file

@ -6,9 +6,55 @@ varying vec4 v_vColour;
uniform vec2 dimension;
uniform int patch;
uniform int transform;
uniform int reconstruct;
uniform float phase;
float DCTcoeff(vec2 k, vec2 x) { return cos(PI * k.x * x.x) * cos(PI * k.y * x.y); }
float DCTcoeff(vec2 k, vec2 x) { return cos(PI * k.x * x.x + phase) * cos(PI * k.y * x.y + phase); }
float ZIGcoeff(vec2 k, vec2 x) {
float a, b;
float fx = fract(k.x * x.x + phase / PI / 2. + .5);
a = fx < 0.5? fx * 2. : (1. - fx) * 2.;
a = a * 2. - 1.;
float fy = fract(k.y * x.y + phase / PI / 2. + .5);
b = fy < 0.5? fy * 2. : (1. - fy) * 2.;
b = b * 2. - 1.;
return a * b;
}
float SMTcoeff(vec2 k, vec2 x) {
float a, b;
float fx = fract(k.x * x.x + phase / PI / 2. + .5);
a = fx < 0.5? fx * 2. : (1. - fx) * 2.;
a = smoothstep(0., 1., a);
a = a * 2. - 1.;
float fy = fract(k.y * x.y + phase / PI / 2. + .5);
b = fy < 0.5? fy * 2. : (1. - fy) * 2.;
b = smoothstep(0., 1., b);
b = b * 2. - 1.;
return a * b;
}
float STPcoeff(vec2 k, vec2 x) {
float a, b;
float sp = 1. / 2.;
float _fx = fract(k.x * x.x + phase / PI / 2.);
float fx = _fx >= 0.5 - sp && _fx <= 0.5 + sp? 0. : step(0.5, _fx);
a = a * 2. - 1.;
float _fy = fract(k.y * x.y + phase / PI / 2.);
float fy = _fy >= 0.5 - sp && _fy <= 0.5 + sp? 0. : step(0.5, _fy);
b = b * 2. - 1.;
return a * b;
}
void main() {
vec2 tx = dimension * v_vTexcoord;
@ -21,7 +67,13 @@ void main() {
for(int v = 0; v < reconstruct; ++v) {
vec4 s = texture2D( gm_BaseTexture, (K + vec2(u, v) + .5) / dimension);
float c = DCTcoeff(vec2(u, v), (k + .5) / float(patch));
float c = 0.;
if(transform == 0) c = DCTcoeff(vec2(u, v), (k + .5) / float(patch));
else if(transform == 1) c = ZIGcoeff(vec2(u, v), (k + .5) / float(patch));
else if(transform == 2) c = SMTcoeff(vec2(u, v), (k + .5) / float(patch));
else if(transform == 3) c = STPcoeff(vec2(u, v), (k + .5) / float(patch));
c *= u == 0? SQRT2 : 1.;
c *= v == 0? SQRT2 : 1.;