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166 rader
4.2 KiB
166 rader
4.2 KiB
//========================================================================
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// Simple multi-window test
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// Copyright (c) Camilla Berglund <elmindreda@glfw.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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//
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// This test creates four windows and clears each in a different color
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//
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//========================================================================
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#include <glad/glad.h>
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#include <GLFW/glfw3.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "getopt.h"
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static const char* titles[] =
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{
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"Red",
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"Green",
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"Blue",
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"Yellow"
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};
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static const struct
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{
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float r, g, b;
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} colors[] =
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{
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{ 0.95f, 0.32f, 0.11f },
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{ 0.50f, 0.80f, 0.16f },
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{ 0.f, 0.68f, 0.94f },
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{ 0.98f, 0.74f, 0.04f }
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};
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static void usage(void)
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{
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printf("Usage: windows [-h] [-b]\n");
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printf("Options:\n");
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printf(" -b create decorated windows\n");
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printf(" -h show this help\n");
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}
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static void error_callback(int error, const char* description)
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{
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fprintf(stderr, "Error: %s\n", description);
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}
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static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
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{
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if (action != GLFW_PRESS)
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return;
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switch (key)
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{
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case GLFW_KEY_SPACE:
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{
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int xpos, ypos;
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glfwGetWindowPos(window, &xpos, &ypos);
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glfwSetWindowPos(window, xpos, ypos);
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break;
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}
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case GLFW_KEY_ESCAPE:
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glfwSetWindowShouldClose(window, GLFW_TRUE);
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break;
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}
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}
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int main(int argc, char** argv)
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{
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int i, ch;
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int decorated = GLFW_FALSE;
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int running = GLFW_TRUE;
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GLFWwindow* windows[4];
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while ((ch = getopt(argc, argv, "bh")) != -1)
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{
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switch (ch)
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{
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case 'b':
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decorated = GLFW_TRUE;
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break;
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case 'h':
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usage();
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exit(EXIT_SUCCESS);
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default:
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usage();
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exit(EXIT_FAILURE);
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}
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}
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glfwSetErrorCallback(error_callback);
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if (!glfwInit())
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exit(EXIT_FAILURE);
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glfwWindowHint(GLFW_DECORATED, decorated);
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glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
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for (i = 0; i < 4; i++)
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{
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int left, top, right, bottom;
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windows[i] = glfwCreateWindow(200, 200, titles[i], NULL, NULL);
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if (!windows[i])
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{
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glfwTerminate();
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exit(EXIT_FAILURE);
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}
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glfwSetKeyCallback(windows[i], key_callback);
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glfwMakeContextCurrent(windows[i]);
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gladLoadGLLoader((GLADloadproc) glfwGetProcAddress);
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glClearColor(colors[i].r, colors[i].g, colors[i].b, 1.f);
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glfwGetWindowFrameSize(windows[i], &left, &top, &right, &bottom);
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glfwSetWindowPos(windows[i],
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100 + (i & 1) * (200 + left + right),
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100 + (i >> 1) * (200 + top + bottom));
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}
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for (i = 0; i < 4; i++)
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glfwShowWindow(windows[i]);
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while (running)
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{
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for (i = 0; i < 4; i++)
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{
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glfwMakeContextCurrent(windows[i]);
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glClear(GL_COLOR_BUFFER_BIT);
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glfwSwapBuffers(windows[i]);
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if (glfwWindowShouldClose(windows[i]))
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running = GLFW_FALSE;
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}
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glfwWaitEvents();
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}
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glfwTerminate();
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exit(EXIT_SUCCESS);
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}
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