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thorvg/examples/MaskingMethods.cpp
Hermet Park a12accbc93 updated copyright
2025-01-03 14:32:31 +09:00

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/*
* Copyright (c) 2023 - 2025 the ThorVG project. All rights reserved.
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "Example.h"
/************************************************************************/
/* ThorVG Drawing Contents */
/************************************************************************/
struct UserExample : tvgexam::Example
{
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
{
if (!canvas) return false;
//Image source
ifstream file(EXAMPLE_DIR"/image/rawimage_200x300.raw", ios::binary);
if (!file.is_open()) return false;
auto data = (uint32_t*) malloc(sizeof(uint32_t) * (200 * 300));
file.read(reinterpret_cast<char*>(data), sizeof (uint32_t) * 200 * 300);
file.close();
//background
auto bg = tvg::Shape::gen();
bg->appendRect(0, 0, 625, h);
bg->fill(50, 50, 50);
canvas->push(bg);
{
//Shape + Shape Mask Add
auto shape = tvg::Shape::gen();
shape->appendCircle(125, 100, 150, 150);
shape->fill(255, 255, 255);
auto mask = tvg::Shape::gen();
mask->appendCircle(125, 100, 50, 50);
mask->fill(255, 255, 255);
auto add = tvg::Shape::gen();
add->appendCircle(175, 100, 50, 50);
add->fill(255, 255, 255);
mask->mask(add, tvg::MaskMethod::Add);
shape->mask(mask, tvg::MaskMethod::Alpha);
canvas->push(shape);
//Shape + Shape Mask Subtract
auto shape2 = tvg::Shape::gen();
shape2->appendCircle(375, 100, 150, 150);
shape2->fill(255, 255, 255, 255);
auto mask2 = tvg::Shape::gen();
mask2->appendCircle(375, 100, 50, 50);
mask2->fill(255, 255, 255, 127);
auto sub = tvg::Shape::gen();
sub->appendCircle(400, 100, 50, 50);
sub->fill(255, 255, 255);
mask2->mask(sub, tvg::MaskMethod::Subtract);
shape2->mask(mask2, tvg::MaskMethod::Alpha);
canvas->push(shape2);
//Shape + Shape Mask Intersect
auto shape3 = tvg::Shape::gen();
shape3->appendCircle(625, 100, 50, 50);
shape3->fill(255, 255, 255, 127);
auto mask3 = tvg::Shape::gen();
mask3->appendCircle(625, 100, 50, 50);
mask3->fill(255, 255, 255, 127);
auto inter = tvg::Shape::gen();
inter->appendCircle(650, 100, 50, 50);
inter->fill(255, 255, 255);
mask3->mask(inter, tvg::MaskMethod::Intersect);
shape3->mask(mask3, tvg::MaskMethod::Alpha);
canvas->push(shape3);
//Shape + Shape Mask Difference
auto shape4 = tvg::Shape::gen();
shape4->appendCircle(875, 100, 150, 150);
shape4->fill(255, 255, 255);
auto mask4 = tvg::Shape::gen();
mask4->appendCircle(875, 100, 50, 50);
mask4->fill(255, 255, 255);
auto diff = tvg::Shape::gen();
diff->appendCircle(900, 100, 50, 50);
diff->fill(255, 255, 255);
mask4->mask(diff, tvg::MaskMethod::Difference);
shape4->mask(mask4, tvg::MaskMethod::Alpha);
canvas->push(shape4);
//Shape + Shape Mask Lighten
auto shape5 = tvg::Shape::gen();
shape5->appendCircle(1125, 100, 150, 150);
shape5->fill(255, 255, 255);
auto mask5 = tvg::Shape::gen();
mask5->appendCircle(1125, 100, 50, 50);
mask5->fill(255, 255, 255, 200);
auto light = tvg::Shape::gen();
light->appendCircle(1150, 100, 50, 50);
light->fill(255, 255, 255);
mask5->mask(light, tvg::MaskMethod::Lighten);
shape5->mask(mask5, tvg::MaskMethod::Alpha);
canvas->push(shape5);
//Shape + Shape Mask Darken
auto shape6 = tvg::Shape::gen();
shape6->appendCircle(1375, 100, 150, 150);
shape6->fill(255, 255, 255);
auto mask6 = tvg::Shape::gen();
mask6->appendCircle(1375, 100, 50, 50);
mask6->fill(255, 255, 255, 200);
auto dark = tvg::Shape::gen();
dark->appendCircle(1400, 100, 50, 50);
dark->fill(255, 255, 255);
mask6->mask(dark, tvg::MaskMethod::Darken);
shape6->mask(mask6, tvg::MaskMethod::Alpha);
canvas->push(shape6);
}
{
//Shape + Shape Mask Add
auto shape = tvg::Shape::gen();
shape->appendCircle(125, 300, 100, 100);
shape->fill(255, 255, 255);
auto mask = tvg::Shape::gen();
mask->appendCircle(125, 300, 50, 50);
mask->fill(255, 255, 255);
auto add = tvg::Shape::gen();
add->appendCircle(175, 300, 50, 50);
add->fill(255, 255, 255);
mask->mask(add, tvg::MaskMethod::Add);
shape->mask(mask, tvg::MaskMethod::InvAlpha);
canvas->push(shape);
//Shape + Shape Mask Subtract
auto shape2 = tvg::Shape::gen();
shape2->appendCircle(375, 300, 100, 100);
shape2->fill(255, 255, 255, 255);
auto mask2 = tvg::Shape::gen();
mask2->appendCircle(375, 300, 50, 50);
mask2->fill(255, 255, 255, 127);
auto sub = tvg::Shape::gen();
sub->appendCircle(400, 300, 50, 50);
sub->fill(255, 255, 255);
mask2->mask(sub, tvg::MaskMethod::Subtract);
shape2->mask(mask2, tvg::MaskMethod::InvAlpha);
canvas->push(shape2);
//Shape + Shape Mask Intersect
auto shape3 = tvg::Shape::gen();
shape3->appendCircle(625, 300, 100, 100);
shape3->fill(255, 255, 255, 127);
auto mask3 = tvg::Shape::gen();
mask3->appendCircle(625, 300, 50, 50);
mask3->fill(255, 255, 255, 127);
auto inter = tvg::Shape::gen();
inter->appendCircle(650, 300, 50, 50);
inter->fill(255, 255, 255);
mask3->mask(inter, tvg::MaskMethod::Intersect);
shape3->mask(mask3, tvg::MaskMethod::InvAlpha);
canvas->push(shape3);
//Shape + Shape Mask Difference
auto shape4 = tvg::Shape::gen();
shape4->appendCircle(875, 300, 100, 100);
shape4->fill(255, 255, 255);
auto mask4 = tvg::Shape::gen();
mask4->appendCircle(875, 300, 50, 50);
mask4->fill(255, 255, 255);
auto diff = tvg::Shape::gen();
diff->appendCircle(900, 300, 50, 50);
diff->fill(255, 255, 255);
mask4->mask(diff, tvg::MaskMethod::Difference);
shape4->mask(mask4, tvg::MaskMethod::InvAlpha);
canvas->push(shape4);
//Shape + Shape Mask Lighten
auto shape5 = tvg::Shape::gen();
shape5->appendCircle(1125, 300, 100, 100);
shape5->fill(255, 255, 255);
auto mask5 = tvg::Shape::gen();
mask5->appendCircle(1125, 300, 50, 50);
mask5->fill(255, 255, 255, 200);
auto light = tvg::Shape::gen();
light->appendCircle(1150, 300, 50, 50);
light->fill(255, 255, 255);
mask5->mask(light, tvg::MaskMethod::Lighten);
shape5->mask(mask5, tvg::MaskMethod::InvAlpha);
canvas->push(shape5);
//Shape + Shape Mask Darken
auto shape6 = tvg::Shape::gen();
shape6->appendCircle(1375, 300, 100, 100);
shape6->fill(255, 255, 255);
auto mask6 = tvg::Shape::gen();
mask6->appendCircle(1375, 300, 50, 50);
mask6->fill(255, 255, 255, 200);
auto dark = tvg::Shape::gen();
dark->appendCircle(1400, 300, 50, 50);
dark->fill(255, 255, 255);
mask6->mask(dark, tvg::MaskMethod::Darken);
shape6->mask(mask6, tvg::MaskMethod::InvAlpha);
canvas->push(shape6);
}
{
//Rect + Rect Mask Add
auto shape = tvg::Shape::gen();
shape->appendRect(75, 450, 150, 150);
shape->fill(255, 255, 255);
auto mask = tvg::Shape::gen();
mask->appendRect(75, 500, 100, 100);
mask->fill(255, 255, 255);
auto add = tvg::Shape::gen();
add->appendRect(125, 450, 100, 100);
add->fill(255, 255, 255);
mask->mask(add, tvg::MaskMethod::Add);
shape->mask(mask, tvg::MaskMethod::Alpha);
canvas->push(shape);
//Rect + Rect Mask Subtract
auto shape2 = tvg::Shape::gen();
shape2->appendRect(325, 450, 150, 150);
shape2->fill(255, 255, 255);
auto mask2 = tvg::Shape::gen();
mask2->appendRect(325, 500, 100, 100);
mask2->fill(255, 255, 255, 127);
auto sub = tvg::Shape::gen();
sub->appendRect(375, 450, 100, 100);
sub->fill(255, 255, 255);
mask2->mask(sub, tvg::MaskMethod::Subtract);
shape2->mask(mask2, tvg::MaskMethod::Alpha);
canvas->push(shape2);
//Rect + Rect Mask Intersect
auto shape3 = tvg::Shape::gen();
shape3->appendRect(575, 450, 150, 150);
shape3->fill(255, 255, 255);
auto mask3 = tvg::Shape::gen();
mask3->appendRect(575, 500, 100, 100);
mask3->fill(255, 255, 255, 127);
auto inter = tvg::Shape::gen();
inter->appendRect(625, 450, 100, 100);
inter->fill(255, 255, 255);
mask3->mask(inter, tvg::MaskMethod::Intersect);
shape3->mask(mask3, tvg::MaskMethod::Alpha);
canvas->push(shape3);
//Rect + Rect Mask Difference
auto shape4 = tvg::Shape::gen();
shape4->appendRect(825, 450, 150, 150);
shape4->fill(255, 255, 255);
auto mask4 = tvg::Shape::gen();
mask4->appendRect(825, 500, 100, 100);
mask4->fill(255, 255, 255);
auto diff = tvg::Shape::gen();
diff->appendRect(875, 450, 100, 100);
diff->fill(255, 255, 255);
mask4->mask(diff, tvg::MaskMethod::Difference);
shape4->mask(mask4, tvg::MaskMethod::Alpha);
canvas->push(shape4);
//Rect + Rect Mask Lighten
auto shape5 = tvg::Shape::gen();
shape5->appendRect(1125, 450, 150, 150);
shape5->fill(255, 255, 255);
auto mask5 = tvg::Shape::gen();
mask5->appendRect(1125, 500, 100, 100);
mask5->fill(255, 255, 255, 200);
auto light = tvg::Shape::gen();
light->appendRect(1175, 450, 100, 100);
light->fill(255, 255, 255);
mask5->mask(light, tvg::MaskMethod::Lighten);
shape5->mask(mask5, tvg::MaskMethod::Alpha);
canvas->push(shape5);
//Rect + Rect Mask Darken
auto shape6 = tvg::Shape::gen();
shape6->appendRect(1375, 450, 150, 150);
shape6->fill(255, 255, 255);
auto mask6 = tvg::Shape::gen();
mask6->appendRect(1375, 500, 100, 100);
mask6->fill(255, 255, 255, 200);
auto dark = tvg::Shape::gen();
dark->appendRect(1400, 450, 100, 100);
dark->fill(255, 255, 255);
mask6->mask(dark, tvg::MaskMethod::Darken);
shape6->mask(mask6, tvg::MaskMethod::Alpha);
canvas->push(shape6);
}
{
//Transformed Image + Shape Mask Add
auto image = tvg::Picture::gen();
if (!tvgexam::verify(image->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image->translate(150, 650);
image->scale(0.5f);
image->rotate(45);
auto mask = tvg::Shape::gen();
mask->appendCircle(125, 700, 50, 50);
mask->fill(255, 255, 255);
auto add = tvg::Shape::gen();
add->appendCircle(150, 750, 50, 50);
add->fill(255, 255, 255);
mask->mask(add, tvg::MaskMethod::Add);
image->mask(mask, tvg::MaskMethod::Alpha);
canvas->push(image);
//Transformed Image + Shape Mask Subtract
auto image2 = tvg::Picture::gen();
if (!tvgexam::verify(image2->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image2->translate(400, 650);
image2->scale(0.5f);
image2->rotate(45);
auto mask2 = tvg::Shape::gen();
mask2->appendCircle(375, 700, 50, 50);
mask2->fill(255, 255, 255, 127);
auto sub = tvg::Shape::gen();
sub->appendCircle(400, 750, 50, 50);
sub->fill(255, 255, 255);
mask2->mask(sub, tvg::MaskMethod::Subtract);
image2->mask(mask2, tvg::MaskMethod::Alpha);
canvas->push(image2);
//Transformed Image + Shape Mask Intersect
auto image3 = tvg::Picture::gen();
if (!tvgexam::verify(image3->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image3->translate(650, 650);
image3->scale(0.5f);
image3->rotate(45);
auto mask3 = tvg::Shape::gen();
mask3->appendCircle(625, 700, 50, 50);
mask3->fill(255, 255, 255, 127);
auto inter = tvg::Shape::gen();
inter->appendCircle(650, 750, 50, 50);
inter->fill(255, 255, 255, 127);
mask3->mask(inter, tvg::MaskMethod::Intersect);
image3->mask(mask3, tvg::MaskMethod::Alpha);
canvas->push(image3);
//Transformed Image + Shape Mask Difference
auto image4 = tvg::Picture::gen();
if (!tvgexam::verify(image4->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image4->translate(900, 650);
image4->scale(0.5f);
image4->rotate(45);
auto mask4 = tvg::Shape::gen();
mask4->appendCircle(875, 700, 50, 50);
mask4->fill(255, 255, 255);
auto diff = tvg::Shape::gen();
diff->appendCircle(900, 750, 50, 50);
diff->fill(255, 255, 255);
mask4->mask(diff, tvg::MaskMethod::Difference);
image4->mask(mask4, tvg::MaskMethod::Alpha);
canvas->push(image4);
//Transformed Image + Shape Mask Lighten
auto image5 = tvg::Picture::gen();
if (!tvgexam::verify(image5->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image5->translate(1150, 650);
image5->scale(0.5f);
image5->rotate(45);
auto mask5 = tvg::Shape::gen();
mask5->appendCircle(1125, 700, 50, 50);
mask5->fill(255, 255, 255, 200);
auto light = tvg::Shape::gen();
light->appendCircle(1150, 750, 50, 50);
light->fill(255, 255, 255);
mask5->mask(light, tvg::MaskMethod::Lighten);
image5->mask(mask5, tvg::MaskMethod::Alpha);
canvas->push(image5);
//Transformed Image + Shape Mask Darken
auto image6 = tvg::Picture::gen();
if (!tvgexam::verify(image6->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image6->translate(1400, 650);
image6->scale(0.5f);
image6->rotate(45);
auto mask6 = tvg::Shape::gen();
mask6->appendCircle(1375, 700, 50, 50);
mask6->fill(255, 255, 255, 200);
auto dark = tvg::Shape::gen();
dark->appendCircle(1400, 750, 50, 50);
dark->fill(255, 255, 255);
mask6->mask(dark, tvg::MaskMethod::Darken);
image6->mask(mask6, tvg::MaskMethod::Alpha);
canvas->push(image6);
}
{
//Transformed Image + Shape Mask Add
auto image = tvg::Picture::gen();
if (!tvgexam::verify(image->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image->translate(150, 850);
image->scale(0.5f);
image->rotate(45);
auto mask = tvg::Shape::gen();
mask->appendCircle(125, 900, 50, 50);
mask->fill(255, 255, 255);
auto add = tvg::Shape::gen();
add->appendCircle(150, 950, 50, 50);
add->fill(255, 255, 255);
mask->mask(add, tvg::MaskMethod::Add);
image->mask(mask, tvg::MaskMethod::InvAlpha);
canvas->push(image);
//Transformed Image + Shape Mask Subtract
auto image2 = tvg::Picture::gen();
if (!tvgexam::verify(image2->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image2->translate(400, 850);
image2->scale(0.5f);
image2->rotate(45);
auto mask2 = tvg::Shape::gen();
mask2->appendCircle(375, 900, 50, 50);
mask2->fill(255, 255, 255, 127);
auto sub = tvg::Shape::gen();
sub->appendCircle(400, 950, 50, 50);
sub->fill(255, 255, 255);
mask2->mask(sub, tvg::MaskMethod::Subtract);
image2->mask(mask2, tvg::MaskMethod::InvAlpha);
canvas->push(image2);
//Transformed Image + Shape Mask Intersect
auto image3 = tvg::Picture::gen();
if (!tvgexam::verify(image3->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image3->translate(650, 850);
image3->scale(0.5f);
image3->rotate(45);
auto mask3 = tvg::Shape::gen();
mask3->appendCircle(625, 900, 50, 50);
mask3->fill(255, 255, 255, 127);
auto inter = tvg::Shape::gen();
inter->appendCircle(650, 950, 50, 50);
inter->fill(255, 255, 255, 127);
mask3->mask(inter, tvg::MaskMethod::Intersect);
image3->mask(mask3, tvg::MaskMethod::InvAlpha);
canvas->push(image3);
//Transformed Image + Shape Mask Difference
auto image4 = tvg::Picture::gen();
if (!tvgexam::verify(image4->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image4->translate(900, 850);
image4->scale(0.5f);
image4->rotate(45);
auto mask4 = tvg::Shape::gen();
mask4->appendCircle(875, 900, 50, 50);
mask4->fill(255, 255, 255);
auto diff = tvg::Shape::gen();
diff->appendCircle(900, 950, 50, 50);
diff->fill(255, 255, 255);
mask4->mask(diff, tvg::MaskMethod::Difference);
image4->mask(mask4, tvg::MaskMethod::InvAlpha);
canvas->push(image4);
//Transformed Image + Shape Mask Lighten
auto image5 = tvg::Picture::gen();
if (!tvgexam::verify(image5->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image5->translate(1150, 850);
image5->scale(0.5f);
image5->rotate(45);
auto mask5 = tvg::Shape::gen();
mask5->appendCircle(1125, 900, 50, 50);
mask5->fill(255, 255, 255, 200);
auto light = tvg::Shape::gen();
light->appendCircle(1150, 950, 50, 50);
light->fill(255, 255, 255);
mask5->mask(light, tvg::MaskMethod::Lighten);
image5->mask(mask5, tvg::MaskMethod::InvAlpha);
canvas->push(image5);
//Transformed Image + Shape Mask Darken
auto image6 = tvg::Picture::gen();
if (!tvgexam::verify(image6->load(data, 200, 300, tvg::ColorSpace::ARGB8888, true))) return false;
image6->translate(1400, 850);
image6->scale(0.5f);
image6->rotate(45);
auto mask6 = tvg::Shape::gen();
mask6->appendCircle(1375, 900, 50, 50);
mask6->fill(255, 255, 255, 200);
auto dark = tvg::Shape::gen();
dark->appendCircle(1400, 950, 50, 50);
dark->fill(255, 255, 255);
mask6->mask(dark, tvg::MaskMethod::Darken);
image6->mask(mask6, tvg::MaskMethod::InvAlpha);
canvas->push(image6);
}
free(data);
return true;
}
};
/************************************************************************/
/* Entry Point */
/************************************************************************/
int main(int argc, char **argv)
{
return tvgexam::main(new UserExample, argc, argv, false, 1500, 1024);
}
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