glfw/tests/windows.c
2013-02-11 19:43:08 +01:00

99 lines
2.6 KiB
C

//========================================================================
// 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>
#include <stdio.h>
#include <stdlib.h>
static const char* titles[] =
{
"Foo",
"Bar",
"Baz",
"Quux"
};
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
int main(void)
{
int i;
GLboolean running = GL_TRUE;
GLFWwindow* windows[4];
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_VISIBLE, GL_FALSE);
for (i = 0; i < 4; i++)
{
windows[i] = glfwCreateWindow(200, 200, titles[i], NULL, NULL);
if (!windows[i])
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwMakeContextCurrent(windows[i]);
glClearColor((GLclampf) (i & 1),
(GLclampf) (i >> 1),
i ? 0.f : 1.f,
0.f);
glfwSetWindowPos(windows[i], 100 + (i & 1) * 300, 100 + (i >> 1) * 300);
glfwShowWindow(windows[i]);
}
while (running)
{
for (i = 0; i < 4; i++)
{
glfwMakeContextCurrent(windows[i]);
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(windows[i]);
if (glfwGetWindowParam(windows[i], GLFW_SHOULD_CLOSE))
running = GL_FALSE;
}
glfwPollEvents();
}
glfwTerminate();
exit(EXIT_SUCCESS);
}