From 67b48ab77221d79d2dcbedbb870c8cd15bd4f723 Mon Sep 17 00:00:00 2001 From: Hermet Park Date: Sat, 3 Sep 2022 16:03:27 +0900 Subject: [PATCH] examples: Added Texmap added texture mapping example. @Issues: https://github.com/Samsung/thorvg/issues/1241 --- src/examples/Texmap.cpp | 186 +++++++++++++++++++++++++++++++++++++++ src/examples/meson.build | 1 + 2 files changed, 187 insertions(+) create mode 100644 src/examples/Texmap.cpp diff --git a/src/examples/Texmap.cpp b/src/examples/Texmap.cpp new file mode 100644 index 00000000..7514006c --- /dev/null +++ b/src/examples/Texmap.cpp @@ -0,0 +1,186 @@ +/* + * Copyright (c) 2020 - 2022 Samsung Electronics Co., Ltd. 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 + +/************************************************************************/ +/* Drawing Commands */ +/************************************************************************/ + +void tvgDrawCmds(tvg::Canvas* canvas) +{ + if (!canvas) return; + + //Background + auto shape = tvg::Shape::gen(); + shape->appendRect(0, 0, WIDTH, HEIGHT, 0, 0); + shape->fill(255, 255, 255, 255); + + if (canvas->push(move(shape)) != tvg::Result::Success) return; + + //Raw Image + string path(EXAMPLE_DIR"/rawimage_200x300.raw"); + + ifstream file(path); + if (!file.is_open()) return ; + auto data = (uint32_t*)malloc(sizeof(uint32_t) * (200*300)); + file.read(reinterpret_cast(data), sizeof (uint32_t) * 200 * 300); + file.close(); + + //Picture + auto picture = tvg::Picture::gen(); + if (picture->load(data, 200, 300, true) != tvg::Result::Success) return; + + //Composing Meshes + tvg::Polygon triangles[4]; + triangles[0].vertex[0] = {{100, 125}, {0, 0}}; + triangles[0].vertex[1] = {{300, 100}, {0.5, 0}}; + triangles[0].vertex[2] = {{200, 550}, {0, 1}}; + + triangles[1].vertex[0] = {{300, 100}, {0.5, 0}}; + triangles[1].vertex[1] = {{350, 450}, {0.5, 1}}; + triangles[1].vertex[2] = {{200, 550}, {0, 1}}; + + triangles[2].vertex[0] = {{300, 100}, {0.5, 0}}; + triangles[2].vertex[1] = {{500, 200}, {1, 0}}; + triangles[2].vertex[2] = {{350, 450}, {0.5, 1}}; + + triangles[3].vertex[0] = {{500, 200}, {1, 0}}; + triangles[3].vertex[1] = {{450, 450}, {1, 1}}; + triangles[3].vertex[2] = {{350, 450}, {0.5, 1}}; + + if (picture->mesh(triangles, 4) != tvg::Result::Success) return; + + picture->translate(100, 100); + + canvas->push(move(picture)); + + free(data); +} + + +/************************************************************************/ +/* 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/meson.build b/src/examples/meson.build index 60d59e6e..f60cadf0 100644 --- a/src/examples/meson.build +++ b/src/examples/meson.build @@ -40,6 +40,7 @@ source_file = [ 'StrokeLine.cpp', 'Svg.cpp', 'Svg2.cpp', + 'Texmap.cpp', 'Transform.cpp', 'Tvg.cpp', 'TvgSaver.cpp',