/* * Copyright (c) 2020 - 2025 the ThorVG project. 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 #include #include #include #define WIDTH 800 #define HEIGHT 800 /************************************************************************/ /* Capi Test Code */ /************************************************************************/ static Tvg_Canvas* canvas = NULL; static Tvg_Animation* animation = NULL; void contents() { //Linear gradient shape with a linear gradient stroke { //Set a shape Tvg_Paint* shape1 = tvg_shape_new(); tvg_shape_move_to(shape1, 25.0f, 25.0f); tvg_shape_line_to(shape1, 375.0f, 25.0f); tvg_shape_cubic_to(shape1, 500.0f, 100.0f, -500.0f, 200.0f, 375.0f, 375.0f); tvg_shape_close(shape1); //Prepare a gradient for the fill Tvg_Gradient* grad = tvg_linear_gradient_new(); tvg_linear_gradient_set(grad, 25.0f, 25.0f, 200.0f, 200.0f); Tvg_Color_Stop color_stops[4] = {{0.00f, 255, 0, 0, 155}, {0.33f, 0, 255, 0, 100}, {0.66f, 255, 0, 255, 100}, {1.00f, 0, 0, 255, 155}}; tvg_gradient_set_color_stops(grad, color_stops, 4); tvg_gradient_set_spread(grad, TVG_STROKE_FILL_REFLECT); //Prepare a gradient for the stroke Tvg_Gradient* grad_stroke = tvg_gradient_duplicate(grad); //Set a gradient fill tvg_shape_set_gradient(shape1, grad); //Set a gradient stroke tvg_shape_set_stroke_width(shape1, 20.0f); tvg_shape_set_stroke_gradient(shape1, grad_stroke); tvg_shape_set_stroke_join(shape1, TVG_STROKE_JOIN_ROUND); tvg_canvas_push(canvas, shape1); } //Solid transformed shape { //Set a shape Tvg_Paint* shape = tvg_shape_new(); tvg_shape_move_to(shape, 25.0f, 25.0f); tvg_shape_line_to(shape, 375.0f, 25.0f); tvg_shape_cubic_to(shape, 500.0f, 100.0f, -500.0f, 200.0f, 375.0f, 375.0f); tvg_shape_close(shape); tvg_shape_set_fill_color(shape, 255, 255, 255, 128); //Transform a shape tvg_paint_scale(shape, 0.3f); tvg_paint_translate(shape, 100.0f, 100.0f); tvg_canvas_push(canvas, shape); } //Radial gradient shape with a radial dashed stroke { //Set a shape Tvg_Paint* shape = tvg_shape_new(); tvg_shape_append_rect(shape, 550.0f, 20.0f, 100.0f, 50.0f, 0.0f, 0.0f, true); tvg_shape_append_circle(shape, 600.0f, 150.0f, 100.0f, 50.0f, true); tvg_shape_append_rect(shape, 550.0f, 230.0f, 100.0f, 100.0f, 20.0f, 40.0f, true); //Prepare a radial gradient for the fill Tvg_Gradient* grad = tvg_radial_gradient_new(); tvg_radial_gradient_set(grad, 600.0f, 180.0f, 50.0f, 640.0f, 180.0f, 0.0f); Tvg_Color_Stop color_stops2[3] = {{0.0f, 255, 0, 255, 255}, {0.5f, 0, 0, 255, 255}, {1.0f, 50, 55, 155, 255}}; tvg_gradient_set_color_stops(grad, color_stops2, 3); tvg_gradient_set_spread(grad, TVG_STROKE_FILL_PAD); //Set a gradient fill tvg_shape_set_gradient(shape, grad); //Prepare a radial gradient for the stroke uint32_t cnt; const Tvg_Color_Stop* color_stops2_get; tvg_gradient_get_color_stops(grad, &color_stops2_get, &cnt); float cx, cy, r, fx, fy, fr; tvg_radial_gradient_get(grad, &cx, &cy, &r, &fx, &fy, &fr); Tvg_Gradient* grad_stroke = tvg_radial_gradient_new(); tvg_radial_gradient_set(grad_stroke, cx, cy, r, fx, fy, fr); tvg_gradient_set_color_stops(grad_stroke, color_stops2_get, cnt); tvg_gradient_set_spread(grad_stroke, TVG_STROKE_FILL_REPEAT); //Set a gradient stroke tvg_shape_set_stroke_width(shape, 30.0f); tvg_shape_set_stroke_gradient(shape, grad_stroke); tvg_paint_set_opacity(shape, 200); //Push the shape into the canvas tvg_canvas_push(canvas, shape); } //Scene { //Set a scene Tvg_Paint* scene = tvg_scene_new(); //Set circles Tvg_Paint* scene_shape1 = tvg_shape_new(); tvg_shape_append_circle(scene_shape1, 80.0f, 650.f, 40.0f, 140.0f, true); tvg_shape_append_circle(scene_shape1, 180.0f, 600.f, 40.0f, 60.0f, true); tvg_shape_set_fill_color(scene_shape1, 0, 0, 255, 150); tvg_shape_set_stroke_color(scene_shape1, 75, 25, 155, 255); tvg_shape_set_stroke_width(scene_shape1, 10.0f); tvg_shape_set_stroke_cap(scene_shape1, Tvg_Stroke_Cap::TVG_STROKE_CAP_ROUND); tvg_shape_set_stroke_join(scene_shape1, Tvg_Stroke_Join::TVG_STROKE_JOIN_ROUND); tvg_shape_set_trimpath(scene_shape1, 0.25f, 0.75f, true); //Set circles with a dashed stroke Tvg_Paint* scene_shape2 = tvg_paint_duplicate(scene_shape1); tvg_shape_set_fill_color(scene_shape2, 75, 25, 155, 200); //Prapare a dash for the stroke float dashPattern[4] = {15.0f, 30.0f, 2.0f, 30.0f}; tvg_shape_set_stroke_dash(scene_shape2, dashPattern, 4, 0.0f); tvg_shape_set_stroke_cap(scene_shape2, TVG_STROKE_CAP_ROUND); tvg_shape_set_stroke_color(scene_shape2, 0, 0, 255, 255); tvg_shape_set_stroke_width(scene_shape2, 15.0f); //Transform a shape tvg_paint_scale(scene_shape2, 0.8f); tvg_paint_rotate(scene_shape2, -90.0f); tvg_paint_translate(scene_shape2, -200.0f, 800.0f); //Push the shapes into the scene tvg_scene_push(scene, scene_shape1); tvg_scene_push(scene, scene_shape2); //Push the scene into the canvas tvg_canvas_push(canvas, scene); } //Masked picture { //Set a scene Tvg_Paint* pict = tvg_picture_new(); if (tvg_picture_load(pict, EXAMPLE_DIR"/svg/tiger.svg") != TVG_RESULT_SUCCESS) { printf("Problem with loading an svg file\n"); tvg_paint_del(pict); } else { float w, h; tvg_picture_get_size(pict, &w, &h); tvg_picture_set_size(pict, w/2, h/2); Tvg_Matrix m = {0.8f, 0.0f, 400.0f, 0.0f, 0.8f, 400.0f, 0.0f, 0.0f, 1.0f}; tvg_paint_set_transform(pict, &m); // Set a composite shape Tvg_Paint* comp = tvg_shape_new(); tvg_shape_append_circle(comp, 600.0f, 600.0f, 100.0f, 100.0f, true); tvg_shape_set_fill_color(comp, 0, 0, 0, 200); tvg_paint_set_mask_method(pict, comp, TVG_MASK_METHOD_INVERSE_ALPHA); //Push the scene into the canvas tvg_canvas_push(canvas, pict); } } //Animation with a picture { animation = tvg_animation_new(); Tvg_Paint* pict_lottie = tvg_animation_get_picture(animation); if (tvg_picture_load(pict_lottie, EXAMPLE_DIR"/lottie/sample.json") != TVG_RESULT_SUCCESS) { printf("Problem with loading a lottie file\n"); tvg_animation_del(animation); animation = NULL; } else { tvg_paint_scale(pict_lottie, 0.75f); tvg_canvas_push(canvas, pict_lottie); } } //Text 1 { //load from a file if (tvg_font_load(EXAMPLE_DIR"/font/SentyCloud.ttf") != TVG_RESULT_SUCCESS) { printf("Problem with loading the font from the file. Did you enable TTF Loader?\n"); } Tvg_Paint *text = tvg_text_new(); tvg_text_set_font(text, "SentyCloud", 25.0f, ""); tvg_text_set_fill_color(text, 0, 0, 255); tvg_text_set_text(text, "\xE7\xB4\xA2\xE5\xB0\x94\x56\x47\x20\xE6\x98\xAF\xE6\x9C\x80\xE5\xA5\xBD\xE7\x9A\x84"); tvg_paint_translate(text, 50.0f, 380.0f); tvg_canvas_push(canvas, text); } //Text 2 { //load from a memory FILE* file = fopen(EXAMPLE_DIR"/font/Arial.ttf", "rb"); if (file) { fseek(file, 0, SEEK_END); size_t data_size = ftell(file); fseek(file, 0, SEEK_SET); char* data = (char*)malloc(data_size); if (fread(data, 1, data_size, file) == data_size) { if (tvg_font_load_data("Arial", data, data_size, "ttf", true) != TVG_RESULT_SUCCESS) { printf("Problem with loading the font file from a memory. Did you enable TTF Loader?\n"); } } free(data); fclose(file); } Tvg_Gradient* grad = tvg_radial_gradient_new(); tvg_radial_gradient_set(grad, 200.0f, 200.0f, 20.0f, 200.0f, 200.0f, 0.0f); Tvg_Color_Stop color_stops[2] = {{0.0f, 255, 0, 255, 255}, {1.0f, 0, 0, 255, 255}}; tvg_gradient_set_color_stops(grad, color_stops, 2); tvg_gradient_set_spread(grad, TVG_STROKE_FILL_REFLECT); Tvg_Paint *text = tvg_text_new(); tvg_text_set_font(text, "Arial", 20.0f, "italic"); tvg_text_set_gradient(text, grad); tvg_text_set_text(text, "ThorVG is the best"); tvg_paint_translate(text, 70.0f, 420.0f); tvg_canvas_push(canvas, text); } } float progress(uint32_t elapsed, float durationInSec) { auto duration = (uint32_t)(durationInSec * 1000.0f); //sec -> millisec. auto clamped = elapsed % duration; return ((float)clamped / (float)duration); } /************************************************************************/ /* Entry Point */ /************************************************************************/ int main(int argc, char **argv) { tvg_engine_init(4); SDL_Init(SDL_INIT_VIDEO); SDL_Window* window = SDL_CreateWindow("ThorVG Example (Software)", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, WIDTH, HEIGHT, SDL_WINDOW_SHOWN); SDL_Surface* surface = SDL_GetWindowSurface(window); //create the canvas canvas = tvg_swcanvas_create(); tvg_swcanvas_set_target(canvas, (uint32_t*)surface->pixels, surface->w, surface->pitch / 4, surface->h, TVG_COLORSPACE_ARGB8888); contents(); //display the first frame tvg_canvas_draw(canvas, true); tvg_canvas_sync(canvas); SDL_UpdateWindowSurface(window); //app main loop! SDL_Event event; auto running = true; auto ptime = SDL_GetTicks(); auto elapsed = 0; while (running) { //SDL event handling while (SDL_PollEvent(&event)) { switch (event.type) { case SDL_QUIT: { running = false; break; } case SDL_KEYUP: { if (event.key.keysym.sym == SDLK_ESCAPE) { running = false; } break; } } } //update the animation if (animation) { float duration, totalFrame; tvg_animation_get_duration(animation, &duration); tvg_animation_get_total_frame(animation, &totalFrame); tvg_animation_set_frame(animation, totalFrame * progress(elapsed, duration)); } //draw the canvas tvg_canvas_update(canvas); tvg_canvas_draw(canvas, true); tvg_canvas_sync(canvas); SDL_UpdateWindowSurface(window); auto ctime = SDL_GetTicks(); elapsed += (ctime - ptime); ptime = ctime; } SDL_DestroyWindow(window); SDL_Quit(); tvg_engine_term(); return 0; }