Loading examples/embed/sdl2/sdl2_example.cc 0 → 100644 +102 −0 Original line number Diff line number Diff line /** * Copyright (c) 2019 Paul Asmuth * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <stdlib.h> #include <unistd.h> #include <iostream> #include <SDL2/SDL.h> #include <plotfx/plotfx.h> #include <plotfx/plotfx_sdl.h> /* The plot configuration that we are going to display */ static const char* kScript = R"( plot { scale-x-padding: 0.1; scale-y-padding: 0.3; x: inline(10, 20, 30, 40, 50, 60, 70, 80, 90, 100); y: inline(1.23, 4.32, 3.23, 6.43, 3.45, 12.32, 8.14, 5.2, 3.5, 2.2); layer { type: lines; color: #06c; } } )"; int main(int argc, const char** argv) { /* Open SDL window */ SDL_Init(SDL_INIT_VIDEO); auto window = SDL_CreateWindow( "PlotFX Example", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 1200, 600, SDL_WINDOW_OPENGL); if (window == NULL) { std::cerr << "ERROR: error while initializing SDL" << std::endl; return EXIT_FAILURE; } /* Setup PlotFX */ plotfx_t* plot = plotfx_init(); if (!plot) { std::cerr << "ERROR: error while initializing PlotFX" << std::endl; return EXIT_FAILURE; } if (!plotfx_configure(plot, kScript)) { std::cerr << "ERROR: error while parsing configuration: " << plotfx_geterror(plot) << std::endl; return EXIT_FAILURE; } /* Render the plot */ if (!plotfx_render_sdl2(plot, SDL_GetWindowSurface(window))) { std::cerr << "ERROR: error while rendering: " << plotfx_geterror(plot) << std::endl; return EXIT_FAILURE; } SDL_UpdateWindowSurface(window); /* Wait 5s and exit */ SDL_Delay(5000); SDL_DestroyWindow(window); SDL_Quit(); return EXIT_SUCCESS; } source/plotfx_sdl.cc 0 → 100644 +89 −0 Original line number Diff line number Diff line /** * This file is part of the "plotfx" project * Copyright (c) 2018 Paul Asmuth * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "plotfx_sdl.h" #include "document.h" #include "utils/return_code.h" #include "graphics/layer.h" #include "graphics/layer_pixmap.h" #include "SDL2/SDL.h" using namespace plotfx; static void blit( const unsigned char* image_data, size_t image_width, size_t image_height, SDL_Surface* output_surface) { auto image = SDL_CreateRGBSurfaceWithFormatFrom( (void*) image_data, image_width, image_height, 32, 4 * image_width, SDL_PIXELFORMAT_ARGB32); SDL_BlitSurface(image, NULL, output_surface, NULL); SDL_FreeSurface(image); } int plotfx_render_sdl2(plotfx_t* ctx, SDL_Surface* surface) { const auto& doc = static_cast<const Context*>(ctx)->document; if (!doc) { ctx_seterrf(ctx, "no configuration loaded"); return ERROR; } auto w = surface->w; auto h = surface->h; LayerRef layer; auto rc = layer_bind_img( w, h, doc->dpi, doc->font_size, doc->background_color, [w, h, surface] (const unsigned char* data, size_t data_len) { blit(data, w, h, surface); return OK; }, &layer); if (!rc.isSuccess()) { return rc; } if (auto rc = document_render_to(*doc, layer.get()); !rc.isSuccess()) { return rc; } return OK; } source/plotfx_sdl.h 0 → 100644 +48 −0 Original line number Diff line number Diff line /** * This file is part of the "plotfx" project * Copyright (c) 2018 Paul Asmuth * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "plotfx.h" #include "SDL2/SDL.h" #ifdef __cplusplus extern "C" { #endif /** * Initialize a new PlotFX context that will draw to the provided SDL2 surface. * * @returns: One (1) on success and zero (0) if an error has occured */ int plotfx_render_sdl2(plotfx_t* ctx, SDL_Surface* surface); #ifdef __cplusplus } // extern C #endif Loading
examples/embed/sdl2/sdl2_example.cc 0 → 100644 +102 −0 Original line number Diff line number Diff line /** * Copyright (c) 2019 Paul Asmuth * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <stdlib.h> #include <unistd.h> #include <iostream> #include <SDL2/SDL.h> #include <plotfx/plotfx.h> #include <plotfx/plotfx_sdl.h> /* The plot configuration that we are going to display */ static const char* kScript = R"( plot { scale-x-padding: 0.1; scale-y-padding: 0.3; x: inline(10, 20, 30, 40, 50, 60, 70, 80, 90, 100); y: inline(1.23, 4.32, 3.23, 6.43, 3.45, 12.32, 8.14, 5.2, 3.5, 2.2); layer { type: lines; color: #06c; } } )"; int main(int argc, const char** argv) { /* Open SDL window */ SDL_Init(SDL_INIT_VIDEO); auto window = SDL_CreateWindow( "PlotFX Example", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 1200, 600, SDL_WINDOW_OPENGL); if (window == NULL) { std::cerr << "ERROR: error while initializing SDL" << std::endl; return EXIT_FAILURE; } /* Setup PlotFX */ plotfx_t* plot = plotfx_init(); if (!plot) { std::cerr << "ERROR: error while initializing PlotFX" << std::endl; return EXIT_FAILURE; } if (!plotfx_configure(plot, kScript)) { std::cerr << "ERROR: error while parsing configuration: " << plotfx_geterror(plot) << std::endl; return EXIT_FAILURE; } /* Render the plot */ if (!plotfx_render_sdl2(plot, SDL_GetWindowSurface(window))) { std::cerr << "ERROR: error while rendering: " << plotfx_geterror(plot) << std::endl; return EXIT_FAILURE; } SDL_UpdateWindowSurface(window); /* Wait 5s and exit */ SDL_Delay(5000); SDL_DestroyWindow(window); SDL_Quit(); return EXIT_SUCCESS; }
source/plotfx_sdl.cc 0 → 100644 +89 −0 Original line number Diff line number Diff line /** * This file is part of the "plotfx" project * Copyright (c) 2018 Paul Asmuth * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "plotfx_sdl.h" #include "document.h" #include "utils/return_code.h" #include "graphics/layer.h" #include "graphics/layer_pixmap.h" #include "SDL2/SDL.h" using namespace plotfx; static void blit( const unsigned char* image_data, size_t image_width, size_t image_height, SDL_Surface* output_surface) { auto image = SDL_CreateRGBSurfaceWithFormatFrom( (void*) image_data, image_width, image_height, 32, 4 * image_width, SDL_PIXELFORMAT_ARGB32); SDL_BlitSurface(image, NULL, output_surface, NULL); SDL_FreeSurface(image); } int plotfx_render_sdl2(plotfx_t* ctx, SDL_Surface* surface) { const auto& doc = static_cast<const Context*>(ctx)->document; if (!doc) { ctx_seterrf(ctx, "no configuration loaded"); return ERROR; } auto w = surface->w; auto h = surface->h; LayerRef layer; auto rc = layer_bind_img( w, h, doc->dpi, doc->font_size, doc->background_color, [w, h, surface] (const unsigned char* data, size_t data_len) { blit(data, w, h, surface); return OK; }, &layer); if (!rc.isSuccess()) { return rc; } if (auto rc = document_render_to(*doc, layer.get()); !rc.isSuccess()) { return rc; } return OK; }
source/plotfx_sdl.h 0 → 100644 +48 −0 Original line number Diff line number Diff line /** * This file is part of the "plotfx" project * Copyright (c) 2018 Paul Asmuth * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "plotfx.h" #include "SDL2/SDL.h" #ifdef __cplusplus extern "C" { #endif /** * Initialize a new PlotFX context that will draw to the provided SDL2 surface. * * @returns: One (1) on success and zero (0) if an error has occured */ int plotfx_render_sdl2(plotfx_t* ctx, SDL_Surface* surface); #ifdef __cplusplus } // extern C #endif
