thorvg/src/examples/MaskingMethods.cpp
Sergii Liebodkin 9afa1742be examples: fixed manual loading of binary data (jpg, png, raw ect)
To load binary data operations must be performed in binary mode rather than text.
The issue appears on windows platform, especially for PNG loading
2023-11-17 20:46:28 +09:00

489 lines
18 KiB
C++

/*
* Copyright (c) 2023 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 "Common.h"
#include <fstream>
/************************************************************************/
/* Drawing Commands */
/************************************************************************/
void tvgDrawCmds(tvg::Canvas* canvas)
{
if (!canvas) return;
//Image source
ifstream file(EXAMPLE_DIR"/rawimage_200x300.raw", ios::binary);
if (!file.is_open()) return;
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, HEIGHT);
bg->fill(50, 50, 50);
canvas->push(std::move(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->composite(std::move(add), tvg::CompositeMethod::AddMask);
shape->composite(std::move(mask), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(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->composite(std::move(sub), tvg::CompositeMethod::SubtractMask);
shape2->composite(std::move(mask2), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(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->composite(std::move(inter), tvg::CompositeMethod::IntersectMask);
shape3->composite(std::move(mask3), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(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->composite(std::move(diff), tvg::CompositeMethod::DifferenceMask);
shape4->composite(std::move(mask4), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(shape4));
}
{
//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->composite(std::move(add), tvg::CompositeMethod::AddMask);
shape->composite(std::move(mask), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(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->composite(std::move(sub), tvg::CompositeMethod::SubtractMask);
shape2->composite(std::move(mask2), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(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->composite(std::move(inter), tvg::CompositeMethod::IntersectMask);
shape3->composite(std::move(mask3), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(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->composite(std::move(diff), tvg::CompositeMethod::DifferenceMask);
shape4->composite(std::move(mask4), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(shape4));
}
{
//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->composite(std::move(add), tvg::CompositeMethod::AddMask);
shape->composite(std::move(mask), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(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->composite(std::move(sub), tvg::CompositeMethod::SubtractMask);
shape2->composite(std::move(mask2), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(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->composite(std::move(inter), tvg::CompositeMethod::IntersectMask);
shape3->composite(std::move(mask3), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(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->composite(std::move(diff), tvg::CompositeMethod::DifferenceMask);
shape4->composite(std::move(mask4), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(shape4));
}
{
//Transformed Image + Shape Mask Add
auto image = tvg::Picture::gen();
if (image->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(add), tvg::CompositeMethod::AddMask);
image->composite(std::move(mask), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(image));
//Transformed Image + Shape Mask Subtract
auto image2 = tvg::Picture::gen();
if (image2->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(sub), tvg::CompositeMethod::SubtractMask);
image2->composite(std::move(mask2), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(image2));
//Transformed Image + Shape Mask Intersect
auto image3 = tvg::Picture::gen();
if (image3->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(inter), tvg::CompositeMethod::IntersectMask);
image3->composite(std::move(mask3), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(image3));
//Transformed Image + Shape Mask Difference
auto image4 = tvg::Picture::gen();
if (image4->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(diff), tvg::CompositeMethod::DifferenceMask);
image4->composite(std::move(mask4), tvg::CompositeMethod::AlphaMask);
canvas->push(std::move(image4));
}
{
//Transformed Image + Shape Mask Add
auto image = tvg::Picture::gen();
if (image->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(add), tvg::CompositeMethod::AddMask);
image->composite(std::move(mask), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(image));
//Transformed Image + Shape Mask Subtract
auto image2 = tvg::Picture::gen();
if (image2->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(sub), tvg::CompositeMethod::SubtractMask);
image2->composite(std::move(mask2), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(image2));
//Transformed Image + Shape Mask Intersect
auto image3 = tvg::Picture::gen();
if (image3->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(inter), tvg::CompositeMethod::IntersectMask);
image3->composite(std::move(mask3), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(image3));
//Transformed Image + Shape Mask Difference
auto image4 = tvg::Picture::gen();
if (image4->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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->composite(std::move(diff), tvg::CompositeMethod::DifferenceMask);
image4->composite(std::move(mask4), tvg::CompositeMethod::InvAlphaMask);
canvas->push(std::move(image4));
}
}
/************************************************************************/
/* Sw Engine Test Code */
/************************************************************************/
static unique_ptr<tvg::SwCanvas> swCanvas;
void tvgSwTest(uint32_t* buffer)
{
//Create a Canvas
swCanvas = tvg::SwCanvas::gen();
swCanvas->target(buffer, WIDTH, WIDTH, HEIGHT, tvg::SwCanvas::ARGB8888);
/* Push the shape into the Canvas drawing list
When this shape is into the canvas list, the shape could update & prepare
internal data asynchronously for coming rendering.
Canvas keeps this shape node unless user call canvas->clear() */
tvgDrawCmds(swCanvas.get());
}
void drawSwView(void* data, Eo* obj)
{
if (swCanvas->draw() == tvg::Result::Success) {
swCanvas->sync();
}
}
/************************************************************************/
/* GL Engine Test Code */
/************************************************************************/
static unique_ptr<tvg::GlCanvas> glCanvas;
void initGLview(Evas_Object *obj)
{
static constexpr auto BPP = 4;
//Create a Canvas
glCanvas = tvg::GlCanvas::gen();
glCanvas->target(nullptr, WIDTH * BPP, WIDTH, HEIGHT);
/* Push the shape into the Canvas drawing list
When this shape is into the canvas list, the shape could update & prepare
internal data asynchronously for coming rendering.
Canvas keeps this shape node unless user call canvas->clear() */
tvgDrawCmds(glCanvas.get());
}
void drawGLview(Evas_Object *obj)
{
auto gl = elm_glview_gl_api_get(obj);
gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl->glClear(GL_COLOR_BUFFER_BIT);
if (glCanvas->draw() == tvg::Result::Success) {
glCanvas->sync();
}
}
/************************************************************************/
/* Main Code */
/************************************************************************/
int main(int argc, char **argv)
{
auto tvgEngine = tvg::CanvasEngine::Sw;
if (argc > 1) {
if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl;
}
//Threads Count
auto threads = std::thread::hardware_concurrency();
if (threads > 0) --threads; //Allow the designated main thread capacity
//Initialize ThorVG Engine
if (tvg::Initializer::init(threads) == tvg::Result::Success) {
elm_init(argc, argv);
if (tvgEngine == tvg::CanvasEngine::Sw) {
createSwView(1024, 1024);
} else {
createGlView(1024, 1024);
}
elm_run();
elm_shutdown();
//Terminate ThorVG Engine
tvg::Initializer::term();
} else {
cout << "engine is not supported" << endl;
}
return 0;
}