glfw/tests/peter.c
2013-06-04 01:51:54 +02:00

157 lines
3.9 KiB
C

//========================================================================
// Cursor input bug 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 came about as the result of bugs #1262764, #1726540 and
// #1726592, all reported by the user peterpp, hence the name
//
// The utility of this test outside of these bugs is uncertain
//
//========================================================================
#include <GLFW/glfw3.h>
#include <stdio.h>
#include <stdlib.h>
static GLboolean reopen = GL_FALSE;
static double cursor_x;
static double cursor_y;
static void toggle_cursor(GLFWwindow* window)
{
if (glfwGetInputMode(window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
{
printf("Released cursor\n");
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
}
else
{
printf("Captured cursor\n");
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
}
}
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
static void cursor_position_callback(GLFWwindow* window, double x, double y)
{
printf("Cursor moved to: %f %f (%f %f)\n", x, y, x - cursor_x, y - cursor_y);
cursor_x = x;
cursor_y = y;
}
static void key_callback(GLFWwindow* window, int key, int action, int mods)
{
switch (key)
{
case GLFW_KEY_SPACE:
{
if (action == GLFW_PRESS)
toggle_cursor(window);
break;
}
case GLFW_KEY_R:
{
if (action == GLFW_PRESS)
reopen = GL_TRUE;
break;
}
}
}
static void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
glViewport(0, 0, width, height);
}
static GLFWwindow* open_window(void)
{
GLFWwindow* window = glfwCreateWindow(640, 480, "Peter Detector", NULL, NULL);
if (!window)
return NULL;
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
glfwGetCursorPos(window, &cursor_x, &cursor_y);
printf("Cursor position: %f %f\n", cursor_x, cursor_y);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
glfwSetCursorPosCallback(window, cursor_position_callback);
glfwSetKeyCallback(window, key_callback);
return window;
}
int main(void)
{
GLFWwindow* window;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
window = open_window();
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glClearColor(0.f, 0.f, 0.f, 0.f);
while (!glfwWindowShouldClose(window))
{
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(window);
glfwWaitEvents();
if (reopen)
{
glfwDestroyWindow(window);
window = open_window();
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
reopen = GL_FALSE;
}
}
glfwTerminate();
exit(EXIT_SUCCESS);
}