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image-gp-6/include/image_operations.h

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#pragma once
/*
* Copyright (C) 2024 Brett Terpstra
*
* 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 3 of the License, or
* (at your option) any later version.
*
* 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, see <https://www.gnu.org/licenses/>.
*/
#include <blt/math/vectors.h>
#include <blt/gp/program.h>
#include <functional>
#include <helper.h>
#include <stb_perlin.h>
#ifndef IMAGE_GP_6_IMAGE_OPERATIONS_H
#define IMAGE_GP_6_IMAGE_OPERATIONS_H
inline blt::gp::operation_t add(make_double(std::plus()), "add");
inline blt::gp::operation_t sub(make_double(std::minus()), "sub");
inline blt::gp::operation_t mul(make_double(std::multiplies()), "mul");
inline blt::gp::operation_t pro_div([](const full_image_t& a, const full_image_t& b) {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
img.rgb_data[i] = b.rgb_data[i] == 0 ? 0 : (a.rgb_data[i] / b.rgb_data[i]);
return img;
}, "div");
inline blt::gp::operation_t op_sin(make_single([](float a) {
return (std::sin(a) + 1.0f) / 2.0f;
}), "sin");
inline blt::gp::operation_t op_cos(make_single([](float a) {
return (std::cos(a) + 1.0f) / 2.0f;
}), "cos");
inline blt::gp::operation_t op_atan(make_single((float (*)(float)) &std::atan), "atan");
inline blt::gp::operation_t op_exp(make_single((float (*)(float)) &std::exp), "exp");
inline blt::gp::operation_t op_abs(make_single((float (*)(float)) &std::abs), "abs");
inline blt::gp::operation_t op_log(make_single((float (*)(float)) &std::log), "log");
inline blt::gp::operation_t op_v_mod([](const full_image_t& a, const full_image_t& b) {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
img.rgb_data[i] = b.rgb_data[i] <= 0 ? 0 : static_cast<float>(blt::mem::type_cast<unsigned int>(a.rgb_data[i]) %
blt::mem::type_cast<unsigned int>(b.rgb_data[i]));
return img;
}, "v_mod");
inline blt::gp::operation_t bitwise_and([](const full_image_t& a, const full_image_t& b) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
img.rgb_data[i] = static_cast<float>(type_cast<unsigned int>(a.rgb_data[i]) & type_cast<unsigned int>(b.rgb_data[i]));
return img;
}, "and");
inline blt::gp::operation_t bitwise_or([](const full_image_t& a, const full_image_t& b) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
img.rgb_data[i] = static_cast<float>(type_cast<unsigned int>(a.rgb_data[i]) | type_cast<unsigned int>(b.rgb_data[i]));
return img;
}, "or");
inline blt::gp::operation_t bitwise_invert([](const full_image_t& a) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
img.rgb_data[i] = static_cast<float>(~type_cast<unsigned int>(a.rgb_data[i]));
return img;
}, "invert");
inline blt::gp::operation_t bitwise_xor([](const full_image_t& a, const full_image_t& b) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
{
auto in_a = type_cast<unsigned int>(a.rgb_data[i]);
auto in_b = type_cast<unsigned int>(b.rgb_data[i]);
img.rgb_data[i] = static_cast<float>(in_a ^ in_b);
}
return img;
}, "xor");
inline blt::gp::operation_t dissolve([](const full_image_t& a, const full_image_t& b) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
{
auto diff = (a.rgb_data[i] - b.rgb_data[i]) / 2.0f;
img.rgb_data[i] = a.rgb_data[i] + diff;
}
return img;
}, "dissolve");
inline blt::gp::operation_t band_pass([](const full_image_t& a, float min, float max) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
{
if (a.rgb_data[i] >= min && a.rgb_data[i] <= max)
{
img.rgb_data[i] = a.rgb_data[i];
} else if (a.rgb_data[i] < min)
{
auto dist_min = min == 0 ? 0.0f : (a.rgb_data[i] / min);
img.rgb_data[i] = a.rgb_data[i] * dist_min;
} else if (a.rgb_data[i] > max)
{
auto dist_max = max == 0 ? 0.0f : ((a.rgb_data[i] - max) / max);
img.rgb_data[i] = a.rgb_data[i] * dist_max;
} else {
img.rgb_data[i] = 0;
}
}
return img;
}, "band_pass");
inline blt::gp::operation_t hsv_to_rgb([](const full_image_t& a) {
using blt::mem::type_cast;
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto h = static_cast<blt::i32>(a.rgb_data[i * CHANNELS + 0]) % 360;
auto s = a.rgb_data[i * CHANNELS + 1];
auto v = a.rgb_data[i * CHANNELS + 2];
auto c = v * s;
auto x = c * static_cast<float>(1 - std::abs(((h / 60) % 2) - 1));
auto m = v - c;
blt::vec3 rgb;
if (h >= 0 && h < 60)
rgb = {c, x, 0.0f};
else if (h >= 60 && h < 120)
rgb = {x, c, 0.0f};
else if (h >= 120 && h < 180)
rgb = {0.0f, c, x};
else if (h >= 180 && h < 240)
rgb = {0.0f, x, c};
else if (h >= 240 && h < 300)
rgb = {x, 0.0f, c};
else if (h >= 300 && h < 360)
rgb = {c, 0.0f, x};
img.rgb_data[i * CHANNELS] = rgb.x() + m;
img.rgb_data[i * CHANNELS + 1] = rgb.y() + m;
img.rgb_data[i * CHANNELS + 2] = rgb.z() + m;
}
return img;
}, "hsv");
inline blt::gp::operation_t lit([]() {
full_image_t img{};
auto r = program.get_random().get_float(0.0f, 1.0f);
auto g = program.get_random().get_float(0.0f, 1.0f);
auto b = program.get_random().get_float(0.0f, 1.0f);
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
img.rgb_data[i * CHANNELS] = r;
img.rgb_data[i * CHANNELS + 1] = g;
img.rgb_data[i * CHANNELS + 2] = b;
}
return img;
}, "lit");
inline blt::gp::operation_t random_val([]() {
full_image_t img{};
for (auto& i : img.rgb_data)
i = program.get_random().get_float(0.0f, 1.0f);
return img;
}, "color_noise");
inline blt::gp::operation_t perlin([](const full_image_t& x, const full_image_t& y, const full_image_t& z, const full_image_t& scale) {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
{
auto s = scale.rgb_data[i];
img.rgb_data[i] = perlin_noise(x.rgb_data[i] / s, y.rgb_data[i] / s, z.rgb_data[i] / s);
}
return img;
}, "perlin");
inline blt::gp::operation_t perlin_terminal([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
{
auto ctx = get_ctx(i);
img.rgb_data[i] = perlin_noise(ctx.x / IMAGE_SIZE, ctx.y / IMAGE_SIZE, static_cast<float>(i % CHANNELS) / CHANNELS);
}
return img;
}, "perlin_term");
inline blt::gp::operation_t perlin_warped([](const full_image_t& u, const full_image_t& v) {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_CHANNELS_SIZE; i++)
{
auto ctx = get_ctx(i);
img.rgb_data[i] = perlin_noise(ctx.x / IMAGE_SIZE + u.rgb_data[i], ctx.y / IMAGE_SIZE + v.rgb_data[i],
static_cast<float>(i % CHANNELS) / CHANNELS);
}
return img;
}, "perlin_warped");
inline blt::gp::operation_t op_img_size([]() {
full_image_t img{};
for (float& i : img.rgb_data)
{
i = IMAGE_SIZE;
}
return img;
}, "img_size");
inline blt::gp::operation_t op_x_r([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).x;
img.rgb_data[i * CHANNELS] = ctx;
img.rgb_data[i * CHANNELS + 1] = 0;
img.rgb_data[i * CHANNELS + 2] = 0;
}
return img;
}, "x_r");
inline blt::gp::operation_t op_x_g([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).x;
img.rgb_data[i * CHANNELS] = 0;
img.rgb_data[i * CHANNELS + 1] = ctx;
img.rgb_data[i * CHANNELS + 2] = 0;
}
return img;
}, "x_g");
inline blt::gp::operation_t op_x_b([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).x;
img.rgb_data[i * CHANNELS] = 0;
img.rgb_data[i * CHANNELS + 1] = 0;
img.rgb_data[i * CHANNELS + 2] = ctx;
}
return img;
}, "x_b");
inline blt::gp::operation_t op_x_rgb([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).x;
img.rgb_data[i * CHANNELS] = ctx;
img.rgb_data[i * CHANNELS + 1] = ctx;
img.rgb_data[i * CHANNELS + 2] = ctx;
}
return img;
}, "x_rgb");
inline blt::gp::operation_t op_y_r([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).y;
img.rgb_data[i * CHANNELS] = ctx;
img.rgb_data[i * CHANNELS + 1] = 0;
img.rgb_data[i * CHANNELS + 2] = 0;
}
return img;
}, "y_r");
inline blt::gp::operation_t op_y_g([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).y;
img.rgb_data[i * CHANNELS] = 0;
img.rgb_data[i * CHANNELS + 1] = ctx;
img.rgb_data[i * CHANNELS + 2] = 0;
}
return img;
}, "y_g");
inline blt::gp::operation_t op_y_b([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).y;
img.rgb_data[i * CHANNELS] = 0;
img.rgb_data[i * CHANNELS + 1] = 0;
img.rgb_data[i * CHANNELS + 2] = ctx;
}
return img;
}, "y_b");
inline blt::gp::operation_t op_y_rgb([]() {
full_image_t img{};
for (blt::size_t i = 0; i < DATA_SIZE; i++)
{
auto ctx = get_ctx(i).y;
img.rgb_data[i * CHANNELS] = ctx;
img.rgb_data[i * CHANNELS + 1] = ctx;
img.rgb_data[i * CHANNELS + 2] = ctx;
}
return img;
}, "y_rgb");
template<typename context>
void create_image_operations(blt::gp::operator_builder<context>& builder)
{
builder.add_operator(perlin);
builder.add_operator(perlin_terminal);
builder.add_operator(perlin_warped);
builder.add_operator(add);
builder.add_operator(sub);
builder.add_operator(mul);
builder.add_operator(pro_div);
builder.add_operator(op_sin);
builder.add_operator(op_cos);
builder.add_operator(op_atan);
builder.add_operator(op_exp);
builder.add_operator(op_log);
builder.add_operator(op_abs);
builder.add_operator(op_v_mod);
builder.add_operator(bitwise_and);
builder.add_operator(bitwise_or);
builder.add_operator(bitwise_invert);
builder.add_operator(bitwise_xor);
builder.add_operator(dissolve);
builder.add_operator(band_pass);
builder.add_operator(hsv_to_rgb);
bool state = false;
builder.add_operator(lit, true);
builder.add_operator(random_val);
builder.add_operator(op_x_r, state);
builder.add_operator(op_x_g, state);
builder.add_operator(op_x_b, state);
builder.add_operator(op_x_rgb, state);
builder.add_operator(op_y_r, state);
builder.add_operator(op_y_g, state);
builder.add_operator(op_y_b, state);
builder.add_operator(op_y_rgb, state);
}
#endif //IMAGE_GP_6_IMAGE_OPERATIONS_H
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