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e8e9ba5ea0
examples are not considered a feature of ThorVG; hence, they are excluded from the src directory. This change allows developers to concentrate more effectively on the core ThorVG sources for practical usages.
257 lines
8.1 KiB
C++
257 lines
8.1 KiB
C++
/*
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* Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "Common.h"
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/************************************************************************/
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/* Drawing Commands */
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/************************************************************************/
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void tvgDrawStar(tvg::Shape* star)
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{
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star->moveTo(199, 34);
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star->lineTo(253, 143);
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star->lineTo(374, 160);
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star->lineTo(287, 244);
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star->lineTo(307, 365);
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star->lineTo(199, 309);
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star->lineTo(97, 365);
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star->lineTo(112, 245);
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star->lineTo(26, 161);
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star->lineTo(146, 143);
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star->close();
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}
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void tvgDrawCmds(tvg::Canvas* canvas)
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{
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if (!canvas) return;
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//Background
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auto shape = tvg::Shape::gen();
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shape->appendRect(0, 0, WIDTH, HEIGHT);
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shape->fill(255, 255, 255);
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if (canvas->push(std::move(shape)) != tvg::Result::Success) return;
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//////////////////////////////////////////////
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auto scene = tvg::Scene::gen();
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auto star1 = tvg::Shape::gen();
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tvgDrawStar(star1.get());
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star1->fill(255, 255, 0);
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star1->strokeFill(255 ,0, 0);
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star1->strokeWidth(10);
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//Move Star1
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star1->translate(-10, -10);
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// color/alpha/opacity are ignored for a clip object - no need to set them
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auto clipStar = tvg::Shape::gen();
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clipStar->appendCircle(200, 230, 110, 110);
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clipStar->translate(10, 10);
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star1->composite(std::move(clipStar), tvg::CompositeMethod::ClipPath);
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auto star2 = tvg::Shape::gen();
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tvgDrawStar(star2.get());
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star2->fill(0, 255, 255);
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star2->strokeFill(0 ,255, 0);
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star2->strokeWidth(10);
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star2->opacity(100);
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//Move Star2
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star2->translate(10, 40);
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// color/alpha/opacity are ignored for a clip object - no need to set them
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auto clip = tvg::Shape::gen();
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clip->appendCircle(200, 230, 130, 130);
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clip->translate(10, 10);
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scene->push(std::move(star1));
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scene->push(std::move(star2));
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//Clipping scene to shape
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scene->composite(std::move(clip), tvg::CompositeMethod::ClipPath);
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canvas->push(std::move(scene));
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//////////////////////////////////////////////
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auto star3 = tvg::Shape::gen();
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tvgDrawStar(star3.get());
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//Fill Gradient
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auto fill = tvg::LinearGradient::gen();
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fill->linear(100, 100, 300, 300);
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tvg::Fill::ColorStop colorStops[2];
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colorStops[0] = {0, 0, 0, 0, 255};
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colorStops[1] = {1, 255, 255, 255, 255};
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fill->colorStops(colorStops, 2);
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star3->fill(std::move(fill));
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star3->strokeFill(255 ,0, 0);
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star3->strokeWidth(10);
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star3->translate(400, 0);
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// color/alpha/opacity are ignored for a clip object - no need to set them
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auto clipRect = tvg::Shape::gen();
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clipRect->appendRect(500, 120, 200, 200); //x, y, w, h
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clipRect->translate(20, 20);
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//Clipping scene to rect(shape)
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star3->composite(std::move(clipRect), tvg::CompositeMethod::ClipPath);
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canvas->push(std::move(star3));
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//////////////////////////////////////////////
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auto picture = tvg::Picture::gen();
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if (picture->load(EXAMPLE_DIR"/svg/cartman.svg") != tvg::Result::Success) return;
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picture->scale(3);
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picture->translate(50, 400);
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// color/alpha/opacity are ignored for a clip object - no need to set them
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auto clipPath = tvg::Shape::gen();
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clipPath->appendCircle(200, 510, 50, 50); //x, y, w, h, rx, ry
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clipPath->appendCircle(200, 650, 50, 50); //x, y, w, h, rx, ry
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clipPath->translate(20, 20);
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//Clipping picture to path
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picture->composite(std::move(clipPath), tvg::CompositeMethod::ClipPath);
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canvas->push(std::move(picture));
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//////////////////////////////////////////////
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auto shape1 = tvg::Shape::gen();
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shape1->appendRect(500, 420, 100, 100, 20, 20);
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shape1->fill(255, 0, 255, 160);
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// color/alpha/opacity are ignored for a clip object - no need to set them
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auto clipShape = tvg::Shape::gen();
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clipShape->appendRect(600, 420, 100, 100);
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//Clipping shape1 to clipShape
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shape1->composite(std::move(clipShape), tvg::CompositeMethod::ClipPath);
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canvas->push(std::move(shape1));
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}
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/************************************************************************/
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/* Sw Engine Test Code */
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/************************************************************************/
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unique_ptr<tvg::SwCanvas> swCanvas;
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void tvgSwTest(uint32_t* buffer)
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{
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//Create a Canvas
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swCanvas = tvg::SwCanvas::gen();
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swCanvas->target(buffer, WIDTH, WIDTH, HEIGHT, tvg::SwCanvas::ARGB8888);
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/* Push the shape into the Canvas drawing list
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When this shape is into the canvas list, the shape could update & prepare
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internal data asynchronously for coming rendering.
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Canvas keeps this shape node unless user call canvas->clear() */
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tvgDrawCmds(swCanvas.get());
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}
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void drawSwView(void* data, Eo* obj)
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{
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if (swCanvas->draw() == tvg::Result::Success) {
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swCanvas->sync();
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}
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}
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/************************************************************************/
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/* GL Engine Test Code */
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/************************************************************************/
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static unique_ptr<tvg::GlCanvas> glCanvas;
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void initGLview(Evas_Object *obj)
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{
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//Create a Canvas
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glCanvas = tvg::GlCanvas::gen();
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//Get the drawing target id
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int32_t targetId;
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auto gl = elm_glview_gl_api_get(obj);
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gl->glGetIntegerv(GL_FRAMEBUFFER_BINDING, &targetId);
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glCanvas->target(targetId, WIDTH, HEIGHT);
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/* Push the shape into the Canvas drawing list
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When this shape is into the canvas list, the shape could update & prepare
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internal data asynchronously for coming rendering.
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Canvas keeps this shape node unless user call canvas->clear() */
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tvgDrawCmds(glCanvas.get());
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}
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void drawGLview(Evas_Object *obj)
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{
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auto gl = elm_glview_gl_api_get(obj);
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gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
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gl->glClear(GL_COLOR_BUFFER_BIT);
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if (glCanvas->draw() == tvg::Result::Success) {
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glCanvas->sync();
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}
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}
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/************************************************************************/
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/* Main Code */
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/************************************************************************/
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int main(int argc, char **argv)
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{
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auto tvgEngine = tvg::CanvasEngine::Sw;
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if (argc > 1) {
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if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl;
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}
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//Threads Count
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auto threads = std::thread::hardware_concurrency();
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if (threads > 0) --threads; //Allow the designated main thread capacity
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//Initialize ThorVG Engine
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if (tvg::Initializer::init(threads) == tvg::Result::Success) {
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elm_init(argc, argv);
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if (tvgEngine == tvg::CanvasEngine::Sw) {
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createSwView();
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} else {
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createGlView();
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}
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elm_run();
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elm_shutdown();
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//Terminate ThorVG Engine
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tvg::Initializer::term();
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} else {
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cout << "engine is not supported" << endl;
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}
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return 0;
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}
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