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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.
276 lines
9 KiB
C++
276 lines
9 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 <fstream>
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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 tvgDrawCmds(tvg::Canvas* canvas)
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{
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if (!canvas) return;
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//Normal
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auto shape1 = tvg::Shape::gen();
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shape1->appendRect(0, 0, 400, 400, 50, 50);
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shape1->fill(0, 255, 255);
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shape1->blend(tvg::BlendMethod::Normal);
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if (canvas->push(std::move(shape1)) != tvg::Result::Success) return;
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//Add
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auto shape2 = tvg::Shape::gen();
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shape2->appendCircle(400, 400, 200, 200);
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shape2->fill(255, 255, 0, 170);
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shape2->blend(tvg::BlendMethod::Add);
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if (canvas->push(std::move(shape2)) != tvg::Result::Success) return;
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//Multiply
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auto shape3 = tvg::Shape::gen();
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shape3->appendCircle(400, 400, 250, 100);
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shape3->fill(255, 255, 255, 100);
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shape3->blend(tvg::BlendMethod::Multiply);
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if (canvas->push(std::move(shape3)) != tvg::Result::Success) return;
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//Overlay
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auto shape4 = tvg::Shape::gen();
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shape4->moveTo(199, 234);
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shape4->lineTo(253, 343);
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shape4->lineTo(374, 360);
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shape4->lineTo(287, 444);
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shape4->lineTo(307, 565);
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shape4->lineTo(199, 509);
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shape4->lineTo(97, 565);
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shape4->lineTo(112, 445);
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shape4->lineTo(26, 361);
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shape4->lineTo(146, 343);
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shape4->close();
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shape4->fill(255, 0, 200, 200);
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shape4->blend(tvg::BlendMethod::Overlay);
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if (canvas->push(std::move(shape4)) != tvg::Result::Success) return;
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//Difference
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auto shape5 = tvg::Shape::gen();
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shape5->appendCircle(300, 600, 200, 200);
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//LinearGradient
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auto fill = tvg::LinearGradient::gen();
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fill->linear(300, 600, 200, 200);
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//Gradient Color Stops
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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, 100};
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fill->colorStops(colorStops, 2);
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shape5->fill(std::move(fill));
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shape5->blend(tvg::BlendMethod::Difference);
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if (canvas->push(std::move(shape5)) != tvg::Result::Success) return;
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//Exclusion
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auto shape6 = tvg::Shape::gen();
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shape6->appendCircle(300, 800, 150, 150);
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//RadialGradient
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auto fill2 = tvg::RadialGradient::gen();
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fill2->radial(300, 800, 150);
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fill2->colorStops(colorStops, 2);
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shape6->fill(std::move(fill2));
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shape6->blend(tvg::BlendMethod::Exclusion);
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if (canvas->push(std::move(shape6)) != tvg::Result::Success) return;
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//Screen
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auto shape7 = tvg::Shape::gen();
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shape7->appendCircle(600, 650, 200, 150);
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shape7->blend(tvg::BlendMethod::Screen);
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shape7->fill(0, 0, 255);
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if (canvas->push(std::move(shape7)) != tvg::Result::Success) return;
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//SrcOver
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auto shape8 = tvg::Shape::gen();
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shape8->appendRect(550, 600, 150, 150);
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shape8->blend(tvg::BlendMethod::SrcOver);
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shape8->fill(10, 255, 155, 50);
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if (canvas->push(std::move(shape8)) != tvg::Result::Success) return;
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//Darken
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auto shape9 = tvg::Shape::gen();
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shape9->appendRect(600, 650, 350, 250);
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shape9->blend(tvg::BlendMethod::Darken);
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shape9->fill(10, 255, 155);
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if (canvas->push(std::move(shape9)) != tvg::Result::Success) return;
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//Prepare Transformed Image
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string path(EXAMPLE_DIR"/image/rawimage_200x300.raw");
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ifstream file(path, ios::binary);
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if (!file.is_open()) return ;
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auto data = (uint32_t*)malloc(sizeof(uint32_t) * (200*300));
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file.read(reinterpret_cast<char *>(data), sizeof (uint32_t) * 200 * 300);
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file.close();
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//Lighten
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auto picture = tvg::Picture::gen();
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if (picture->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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picture->translate(800, 700);
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picture->rotate(40);
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picture->blend(tvg::BlendMethod::Lighten);
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canvas->push(std::move(picture));
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//ColorDodge
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auto shape10 = tvg::Shape::gen();
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shape10->appendRect(0, 0, 200, 200, 50, 50);
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shape10->blend(tvg::BlendMethod::ColorDodge);
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shape10->fill(255, 255, 255, 250);
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if (canvas->push(std::move(shape10)) != tvg::Result::Success) return;
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//ColorBurn
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auto picture2 = tvg::Picture::gen();
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if (picture2->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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picture2->translate(600, 250);
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picture2->blend(tvg::BlendMethod::ColorBurn);
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picture2->opacity(150);
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canvas->push(std::move(picture2));
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//HardLight
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auto picture3 = tvg::Picture::gen();
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if (picture3->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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picture3->translate(700, 150);
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picture3->blend(tvg::BlendMethod::HardLight);
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canvas->push(std::move(picture3));
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//SoftLight
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auto picture4 = tvg::Picture::gen();
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if (picture4->load(data, 200, 300, true, true) != tvg::Result::Success) return;
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picture4->translate(350, 600);
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picture4->rotate(90);
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picture4->blend(tvg::BlendMethod::SoftLight);
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canvas->push(std::move(picture4));
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free(data);
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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(1024, 1024);
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} else {
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createGlView(1024, 1024);
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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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