glfw/tests/windows.c

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//========================================================================
// Simple multi-window test
// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
//
// This test creates four windows and clears each in a different color
//
//========================================================================
#include <GL/glfw3.h>
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#include <stdio.h>
#include <stdlib.h>
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static const char* titles[] =
{
"Foo",
"Bar",
"Baz",
"Quux"
};
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static GLFWwindow open_window(int width, int height, const char* title)
{
GLFWwindow window = glfwOpenWindow(width, height, GLFW_WINDOW);
if (!window)
{
fprintf(stderr, "Failed to open GLFW default window\n");
return NULL;
}
glfwSetWindowTitle(window, title);
return window;
}
int main(void)
{
int i;
GLboolean running = GL_TRUE;
GLFWwindow windows[4];
if (!glfwInit())
{
fprintf(stderr, "Failed to initialize GLFW\n");
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exit(EXIT_FAILURE);
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}
for (i = 0; i < 4; i++)
{
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windows[i] = open_window(200, 200, titles[i]);
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if (!windows[i])
{
glfwTerminate();
exit(EXIT_FAILURE);
}
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glClearColor((i & 0x01) ? 1.0 : 0.0, (i & 0x02) ? 1.0 : 0.0, 0.0, 0.0);
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}
while (running)
{
for (i = 0; i < 4; i++)
{
glfwMakeWindowCurrent(windows[i]);
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers();
}
glfwPollEvents();
for (i = 0; i < 4; i++)
{
if (!glfwIsWindow(windows[i]))
running = GL_FALSE;
}
}
glfwTerminate();
exit(EXIT_SUCCESS);
}