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https://github.com/thorvg/thorvg.git
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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.
244 lines
7.4 KiB
C++
244 lines
7.4 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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#include <fstream>
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/************************************************************************/
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/* Drawing Commands */
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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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//Solid Rectangle
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auto shape = tvg::Shape::gen();
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shape->appendRect(0, 0, 400, 400);
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//Mask
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auto mask = tvg::Shape::gen();
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mask->appendCircle(200, 200, 125, 125);
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mask->fill(255, 0, 0);
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auto fill = tvg::LinearGradient::gen();
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fill->linear(0, 0, 400, 400);
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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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shape->fill(std::move(fill));
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shape->composite(std::move(mask), tvg::CompositeMethod::AlphaMask);
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canvas->push(std::move(shape));
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//-------------------------------------------
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//Star
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auto shape1 = tvg::Shape::gen();
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shape1->moveTo(599, 34);
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shape1->lineTo(653, 143);
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shape1->lineTo(774, 160);
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shape1->lineTo(687, 244);
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shape1->lineTo(707, 365);
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shape1->lineTo(599, 309);
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shape1->lineTo(497, 365);
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shape1->lineTo(512, 245);
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shape1->lineTo(426, 161);
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shape1->lineTo(546, 143);
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shape1->close();
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//Mask
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auto mask1 = tvg::Shape::gen();
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mask1->appendCircle(600, 200, 125, 125);
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mask1->fill(255, 0, 0);
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auto fill1 = tvg::LinearGradient::gen();
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fill1->linear(400, 0, 800, 400);
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tvg::Fill::ColorStop colorStops1[2];
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colorStops1[0] = {0,0,0,0,255};
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colorStops1[1] = {1,1,255,255,255};
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fill1->colorStops(colorStops1,2);
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shape1->fill(std::move(fill1));
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shape1->composite(std::move(mask1), tvg::CompositeMethod::AlphaMask);
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canvas->push(std::move(shape1));
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//-------------------------------------------
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//Solid Rectangle
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auto shape2 = tvg::Shape::gen();
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shape2->appendRect(0, 400, 400, 400);
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//Mask
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auto mask2 = tvg::Shape::gen();
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mask2->appendCircle(200, 600, 125, 125);
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mask2->fill(255, 0, 0);
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auto fill2 = tvg::LinearGradient::gen();
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fill2->linear(0, 400, 400, 800);
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tvg::Fill::ColorStop colorStops2[2];
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colorStops2[0] = {0,0,0,0,255};
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colorStops2[1] = {1,255,255,255,255};
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fill2->colorStops(colorStops2,2);
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shape2->fill(std::move(fill2));
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shape2->composite(std::move(mask2), tvg::CompositeMethod::InvAlphaMask);
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canvas->push(std::move(shape2));
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//-------------------------------------------
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// Star
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auto shape3 = tvg::Shape::gen();
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shape3->moveTo(599, 434);
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shape3->lineTo(653, 543);
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shape3->lineTo(774, 560);
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shape3->lineTo(687, 644);
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shape3->lineTo(707, 765);
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shape3->lineTo(599, 709);
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shape3->lineTo(497, 765);
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shape3->lineTo(512, 645);
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shape3->lineTo(426, 561);
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shape3->lineTo(546, 543);
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shape3->close();
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//Mask
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auto mask3 = tvg::Shape::gen();
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mask3->appendCircle(600, 600, 125, 125);
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mask3->fill(255, 0, 0);
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auto fill3 = tvg::LinearGradient::gen();
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fill3->linear(400, 400, 800, 800);
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tvg::Fill::ColorStop colorStops3[2];
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colorStops3[0] = {0,0,0,0,255};
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colorStops3[1] = {1,1,255,255,255};
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fill3->colorStops(colorStops3,2);
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shape3->fill(std::move(fill3));
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shape3->composite(std::move(mask3), tvg::CompositeMethod::InvAlphaMask);
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canvas->push(std::move(shape3));
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}
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/************************************************************************/
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/* Sw Engine Test Code */
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/************************************************************************/
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static 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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