mirror of
https://github.com/Relintai/pandemonium_engine_minimal.git
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123 lines
3.0 KiB
C++
123 lines
3.0 KiB
C++
// test_video.cpp
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/*
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* FRT - A Godot platform targeting single board computers
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* Copyright (c) 2017-2019 Emanuele Fornara
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "frt.h"
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#include <math.h>
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#include <assert.h>
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#include "dl/gles2.gen.h"
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#include "bits/frt_app_impl.h"
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using namespace frt;
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App *app;
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Video *video;
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ContextGL *gl;
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int y;
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bool repeat = false;
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#ifdef __unix__
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#include <ctype.h>
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#include <unistd.h>
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#include <sys/select.h>
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static void dispatch_meta() {
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struct timeval tv = { 0, 0 };
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(STDIN_FILENO, &fds);
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if (select(1, &fds, NULL, NULL, &tv) == 1) {
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char buf[64];
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int r = read(STDIN_FILENO, buf, sizeof(buf));
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for (int i = 0; i < r; i++) {
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int c = buf[i];
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if (c == '1') {
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repeat = true;
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} else if (c == '0') {
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repeat = false;
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} else if (isalpha(c)) {
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video->handle_meta(toupper(c), true);
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video->handle_meta(toupper(c), false);
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}
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}
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}
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}
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#else
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static void dispatch_meta() {
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}
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static void usleep(int us) {
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}
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#endif
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void iteration(bool vsync) {
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const int position_period = 300;
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const int visibility_period = 100;
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gl->set_use_vsync(vsync);
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for (int i = 0; i < position_period; i++, y++) {
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video->move_pointer(Vec2(y, y));
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if (vsync)
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glClearColor(0., 0., sin((M_PI * i) / position_period), 1.);
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else
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glClearColor(sin((M_PI * i) / position_period), 0., 0., 1.);
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glClear(GL_COLOR_BUFFER_BIT);
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switch (i % visibility_period) {
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case 0:
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video->show_pointer(true);
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break;
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case visibility_period / 2:
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video->show_pointer(false);
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break;
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default:
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break;
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}
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app->dispatch_events();
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gl->swap_buffers();
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dispatch_meta();
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if (!vsync)
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usleep(2000); // too fast otherwise
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}
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}
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int main(int argc, char *argv[]) {
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app = App::instance();
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video = (Video *)app->probe_single();
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assert(video);
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Vec2 size(640, 480);
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gl = video->create_the_gl_context(2, size);
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assert(gl);
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gl->initialize();
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gl->make_current();
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do {
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y = 0;
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iteration(true);
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iteration(false);
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} while (repeat);
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video->cleanup();
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}
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