diff --git a/src/examples/SceneBlending.cpp b/src/examples/SceneBlending.cpp new file mode 100644 index 00000000..50734807 --- /dev/null +++ b/src/examples/SceneBlending.cpp @@ -0,0 +1,220 @@ +/* + * 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" + +/************************************************************************/ +/* Drawing Commands */ +/************************************************************************/ + +void tvgDrawCmds(tvg::Canvas* canvas) +{ + if (!canvas) return; + + //BG + auto bg = tvg::Shape::gen(); + bg->appendRect(0, 0, WIDTH, HEIGHT); + bg->fill(100, 100, 100); + canvas->push(std::move(bg)); + + //Create a Scene + auto scene = tvg::Scene::gen(); + scene->blend(tvg::BlendMethod::Add); + + //Prepare Circle + auto shape1 = tvg::Shape::gen(); + shape1->appendCircle(400, 400, 250, 250); + shape1->fill(255, 255, 0); + scene->push(std::move(shape1)); + + //Round rectangle + auto shape2 = tvg::Shape::gen(); + shape2->appendRect(450, 100, 200, 200, 50, 50); + shape2->fill(0, 255, 0); + shape2->stroke(10); + shape2->stroke(255, 255, 255); + scene->push(std::move(shape2)); + + //Draw the Scene onto the Canvas + canvas->push(std::move(scene)); + + //Create a Scene 2 + auto scene2 = tvg::Scene::gen(); + scene2->opacity(127); //Apply opacity to scene (0 - 255) + scene2->blend(tvg::BlendMethod::Overlay); + scene2->scale(1.2); + + //Star + auto shape3 = tvg::Shape::gen(); + + //Appends Paths + shape3->moveTo(199, 34); + shape3->lineTo(253, 143); + shape3->lineTo(374, 160); + shape3->lineTo(287, 244); + shape3->lineTo(307, 365); + shape3->lineTo(199, 309); + shape3->lineTo(97, 365); + shape3->lineTo(112, 245); + shape3->lineTo(26, 161); + shape3->lineTo(146, 143); + shape3->close(); + shape3->fill(0, 0, 255); + shape3->stroke(10); + shape3->stroke(255, 255, 255); + shape3->opacity(127); + + scene2->push(std::move(shape3)); + + //Circle + auto shape4 = tvg::Shape::gen(); + + auto cx = 150.0f; + auto cy = 150.0f; + auto radius = 50.0f; + auto halfRadius = radius * 0.552284f; + + //Append Paths + shape4->moveTo(cx, cy - radius); + shape4->cubicTo(cx + halfRadius, cy - radius, cx + radius, cy - halfRadius, cx + radius, cy); + shape4->cubicTo(cx + radius, cy + halfRadius, cx + halfRadius, cy + radius, cx, cy+ radius); + shape4->cubicTo(cx - halfRadius, cy + radius, cx - radius, cy + halfRadius, cx - radius, cy); + shape4->cubicTo(cx - radius, cy - halfRadius, cx - halfRadius, cy - radius, cx, cy - radius); + shape4->close(); + shape4->fill(255, 0, 0); + shape4->stroke(10); + shape4->stroke(0, 0, 255); + shape4->opacity(200); + shape4->scale(3); + scene2->push(std::move(shape4)); + + //Draw the Scene onto the Canvas + canvas->push(std::move(scene2)); +} + + +/************************************************************************/ +/* Sw Engine Test Code */ +/************************************************************************/ + +static unique_ptr 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 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) +{ + tvg::CanvasEngine tvgEngine = tvg::CanvasEngine::Sw; + + if (argc > 1) { + if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl; + } + + //Initialize ThorVG Engine + if (tvgEngine == tvg::CanvasEngine::Sw) { + cout << "tvg engine: software" << endl; + } else { + cout << "tvg engine: opengl" << endl; + } + + //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(tvgEngine, threads) == tvg::Result::Success) { + + + elm_init(argc, argv); + + if (tvgEngine == tvg::CanvasEngine::Sw) { + createSwView(); + } else { + createGlView(); + } + + elm_run(); + elm_shutdown(); + + //Terminate ThorVG Engine + tvg::Initializer::term(tvgEngine); + + } else { + cout << "engine is not supported" << endl; + } + return 0; +} diff --git a/src/examples/StrokeMiterlimit.cpp b/src/examples/StrokeMiterlimit.cpp index 118c1a0f..bd0123f8 100644 --- a/src/examples/StrokeMiterlimit.cpp +++ b/src/examples/StrokeMiterlimit.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2020 - 2023 the ThorVG project. All rights reserved. + * 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 diff --git a/src/examples/meson.build b/src/examples/meson.build index 7583783d..5b901aaf 100644 --- a/src/examples/meson.build +++ b/src/examples/meson.build @@ -39,6 +39,7 @@ source_file = [ 'PictureWebp.cpp', 'RadialGradient.cpp', 'Scene.cpp', + 'SceneBlending.cpp', 'SceneClipper.cpp', 'SceneTransform.cpp', 'Shape.cpp',