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Replaced the various cursor tests with a sane one.

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This commit is contained in:
Camilla Berglund 2015-07-15 12:13:42 +02:00
parent 04c057238b
commit 33c7c28dde
6 changed files with 207 additions and 617 deletions
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3
.gitignore vendored
View File

@ -55,10 +55,8 @@ examples/simple
examples/wave examples/wave
tests/*.app tests/*.app
tests/*.exe tests/*.exe
tests/accuracy
tests/clipboard tests/clipboard
tests/cursor tests/cursor
tests/cursoranim
tests/empty tests/empty
tests/events tests/events
tests/gamma tests/gamma
@ -67,7 +65,6 @@ tests/iconify
tests/joysticks tests/joysticks
tests/monitors tests/monitors
tests/msaa tests/msaa
tests/peter
tests/reopen tests/reopen
tests/sharing tests/sharing
tests/tearing tests/tearing

11
tests/CMakeLists.txt
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@ -28,16 +28,9 @@ add_executable(glfwinfo glfwinfo.c ${GETOPT})
add_executable(iconify iconify.c ${GETOPT}) add_executable(iconify iconify.c ${GETOPT})
add_executable(joysticks joysticks.c) add_executable(joysticks joysticks.c)
add_executable(monitors monitors.c ${GETOPT}) add_executable(monitors monitors.c ${GETOPT})
add_executable(peter peter.c)
add_executable(reopen reopen.c) add_executable(reopen reopen.c)
add_executable(cursor cursor.c) add_executable(cursor cursor.c)
add_executable(cursoranim WIN32 MACOSX_BUNDLE cursoranim.c)
set_target_properties(cursoranim PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Cursor animation")
add_executable(accuracy WIN32 MACOSX_BUNDLE accuracy.c)
set_target_properties(accuracy PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Accuracy")
add_executable(empty WIN32 MACOSX_BUNDLE empty.c ${TINYCTHREAD}) add_executable(empty WIN32 MACOSX_BUNDLE empty.c ${TINYCTHREAD})
set_target_properties(empty PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Empty Event") set_target_properties(empty PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Empty Event")
@ -59,9 +52,9 @@ set_target_properties(windows PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Windows")
target_link_libraries(empty "${CMAKE_THREAD_LIBS_INIT}" "${RT_LIBRARY}") target_link_libraries(empty "${CMAKE_THREAD_LIBS_INIT}" "${RT_LIBRARY}")
target_link_libraries(threads "${CMAKE_THREAD_LIBS_INIT}" "${RT_LIBRARY}") target_link_libraries(threads "${CMAKE_THREAD_LIBS_INIT}" "${RT_LIBRARY}")
set(WINDOWS_BINARIES accuracy empty sharing tearing threads title windows cursoranim) set(WINDOWS_BINARIES empty sharing tearing threads title windows)
set(CONSOLE_BINARIES clipboard events msaa gamma glfwinfo set(CONSOLE_BINARIES clipboard events msaa gamma glfwinfo
iconify joysticks monitors peter reopen cursor) iconify joysticks monitors reopen cursor)
set_target_properties(${WINDOWS_BINARIES} ${CONSOLE_BINARIES} PROPERTIES set_target_properties(${WINDOWS_BINARIES} ${CONSOLE_BINARIES} PROPERTIES
FOLDER "GLFW3/Tests") FOLDER "GLFW3/Tests")

124
tests/accuracy.c
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@ -1,124 +0,0 @@
//========================================================================
// Mouse cursor accuracy 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 bug #1867804
//
// No sign of said bug has so far been detected
//
//========================================================================
#include <GLFW/glfw3.h>
#include <stdio.h>
#include <stdlib.h>
static double cursor_x = 0.0, cursor_y = 0.0;
static int swap_interval = 1;
static void set_swap_interval(GLFWwindow* window, int interval)
{
char title[256];
swap_interval = interval;
glfwSwapInterval(swap_interval);
sprintf(title, "Cursor Inaccuracy Detector (interval %i)", swap_interval);
glfwSetWindowTitle(window, title);
}
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)
{
cursor_x = x;
cursor_y = y;
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
set_swap_interval(window, 1 - swap_interval);
}
int main(void)
{
GLFWwindow* window;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
window = glfwCreateWindow(640, 480, "", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwSetCursorPosCallback(window, cursor_position_callback);
glfwSetKeyCallback(window, key_callback);
glfwMakeContextCurrent(window);
set_swap_interval(window, swap_interval);
while (!glfwWindowShouldClose(window))
{
int wnd_width, wnd_height, fb_width, fb_height;
float scale;
glfwGetWindowSize(window, &wnd_width, &wnd_height);
glfwGetFramebufferSize(window, &fb_width, &fb_height);
scale = (float) fb_width / (float) wnd_width;
glClear(GL_COLOR_BUFFER_BIT);
glViewport(0, 0, fb_width, fb_height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.f, fb_width, 0.f, fb_height, 0.f, 1.f);
glBegin(GL_LINES);
glVertex2f(0.f, (GLfloat) (fb_height - cursor_y * scale));
glVertex2f((GLfloat) fb_width, (GLfloat) (fb_height - cursor_y * scale));
glVertex2f((GLfloat) cursor_x * scale, 0.f);
glVertex2f((GLfloat) cursor_x * scale, (GLfloat) fb_height);
glEnd();
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwTerminate();
exit(EXIT_SUCCESS);
}

400
tests/cursor.c
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@ -23,158 +23,78 @@
// //
//======================================================================== //========================================================================
// //
// System cursors and input modes tests. // This test provides an interface to the cursor image and cursor mode
// parts of the API.
//
// Custom cursor image generation by urraka.
// //
//======================================================================== //========================================================================
#include <GLFW/glfw3.h> #include <GLFW/glfw3.h>
#include <math.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
static int W = 640; #define CURSOR_FRAME_COUNT 60
static int H = 480;
static int delay = 0;
static GLFWwindow* windows[2] = { NULL, NULL }; static double cursor_x;
static GLFWwindow* activeWindow = NULL; static double cursor_y;
static GLFWcursor* cursor = NULL; static int swap_interval = 1;
static GLboolean wait_events = GL_FALSE;
static struct static GLboolean animate_cursor = GL_FALSE;
{ static GLboolean track_cursor = GL_FALSE;
int key; static GLFWcursor* standard_cursors[6];
double time;
} commands[] = {
{GLFW_KEY_H, 0},
{GLFW_KEY_C, 0},
{GLFW_KEY_D, 0},
{GLFW_KEY_S, 0},
{GLFW_KEY_N, 0},
{GLFW_KEY_1, 0},
{GLFW_KEY_2, 0},
{GLFW_KEY_3, 0}
};
static int CommandCount = sizeof(commands) / sizeof(commands[0]);
static struct
{
int w, h;
} cursorSize[] = {
{ 24, 24 }, { 13, 37 }, { 5, 53 }, { 43, 64 }, { 300, 300 }
};
static int SizeCount = sizeof(cursorSize) / sizeof(cursorSize[0]);
static int currentSize = 0;
static void command_callback(int key)
{
switch (key)
{
case GLFW_KEY_H:
{
printf("H: show this help\n");
printf("C: call glfwCreateCursor()\n");
printf("D: call glfwDestroyCursor()\n");
printf("S: call glfwSetCursor()\n");
printf("N: call glfwSetCursor() with NULL\n");
printf("1: set GLFW_CURSOR_NORMAL\n");
printf("2: set GLFW_CURSOR_HIDDEN\n");
printf("3: set GLFW_CURSOR_DISABLED\n");
printf("T: enable 3s delay for all previous commands\n");
}
break;
case GLFW_KEY_C:
{
int x, y;
GLFWimage image;
unsigned char* pixels;
if (cursor)
break;
image.width = cursorSize[currentSize].w;
image.height = cursorSize[currentSize].h;
pixels = malloc(4 * image.width * image.height);
image.pixels = pixels;
for (y = 0; y < image.height; y++)
{
for (x = 0; x < image.width; x++)
{
*pixels++ = 0xff;
*pixels++ = 0;
*pixels++ = 255 * y / image.height;
*pixels++ = 255 * x / image.width;
}
}
cursor = glfwCreateCursor(&image, image.width / 2, image.height / 2);
currentSize = (currentSize + 1) % SizeCount;
free(image.pixels);
break;
}
case GLFW_KEY_D:
{
if (cursor != NULL)
{
glfwDestroyCursor(cursor);
cursor = NULL;
}
break;
}
case GLFW_KEY_S:
{
if (cursor != NULL)
glfwSetCursor(activeWindow, cursor);
else
printf("The cursor is not created\n");
break;
}
case GLFW_KEY_N:
glfwSetCursor(activeWindow, NULL);
break;
case GLFW_KEY_1:
glfwSetInputMode(activeWindow, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
break;
case GLFW_KEY_2:
glfwSetInputMode(activeWindow, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
break;
case GLFW_KEY_3:
glfwSetInputMode(activeWindow, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
break;
}
}
static void error_callback(int error, const char* description) static void error_callback(int error, const char* description)
{ {
fprintf(stderr, "Error: %s\n", description); fprintf(stderr, "Error: %s\n", description);
} }
static void framebuffer_size_callback(GLFWwindow* window, int width, int height) static float star(int x, int y, float t)
{ {
W = width; const float c = 64 / 2.f;
H = height;
glViewport(0, 0, W, H); const float i = (0.25f * (float) sin(2.f * M_PI * t) + 0.75f);
const float k = 64 * 0.046875f * i;
const float dist = (float) sqrt((x - c) * (x - c) + (y - c) * (y - c));
const float salpha = 1.f - dist / c;
const float xalpha = (float) x == c ? c : k / (float) fabs(x - c);
const float yalpha = (float) y == c ? c : k / (float) fabs(y - c);
return fmax(0.f, fmin(1.f, i * salpha * 0.2f + salpha * xalpha * yalpha));
} }
static void refresh_callback(GLFWwindow* window) static GLFWcursor* create_cursor_frame(float t)
{ {
glfwMakeContextCurrent(window); int i = 0, x, y;
glClearColor(0.0f, window == activeWindow ? 0.8f : 0.0f, 0.0f, 1.0f); unsigned char buffer[64 * 64 * 4];
glClear(GL_COLOR_BUFFER_BIT); const GLFWimage image = { 64, 64, buffer };
glfwSwapBuffers(window);
for (y = 0; y < image.width; y++)
{
for (x = 0; x < image.height; x++)
{
buffer[i++] = 255;
buffer[i++] = 255;
buffer[i++] = 255;
buffer[i++] = (unsigned char) (255 * star(x, y, t));
}
}
return glfwCreateCursor(&image, image.width / 2, image.height / 2);
}
static void cursor_position_callback(GLFWwindow* window, double x, double y)
{
printf("%0.3f: Cursor position: %f %f (%+f %+f)\n",
glfwGetTime(),
x, y, x - cursor_x, y - cursor_y);
cursor_x = x;
cursor_y = y;
} }
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
@ -184,104 +104,194 @@ static void key_callback(GLFWwindow* window, int key, int scancode, int action,
switch (key) switch (key)
{ {
case GLFW_KEY_A:
{
animate_cursor = !animate_cursor;
if (!animate_cursor)
glfwSetCursor(window, NULL);
break;
}
case GLFW_KEY_ESCAPE: case GLFW_KEY_ESCAPE:
glfwSetWindowShouldClose(window, GL_TRUE); {
if (glfwGetInputMode(window, GLFW_CURSOR) != GLFW_CURSOR_DISABLED)
{
glfwSetWindowShouldClose(window, GL_TRUE);
break;
}
/* FALLTHROUGH */
}
case GLFW_KEY_N:
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
printf("(( cursor is normal ))\n");
break;
case GLFW_KEY_D:
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
printf("(( cursor is disabled ))\n");
break;
case GLFW_KEY_H:
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
printf("(( cursor is hidden ))\n");
break;
case GLFW_KEY_SPACE:
swap_interval = 1 - swap_interval;
printf("(( swap interval: %i ))\n", swap_interval);
glfwSwapInterval(swap_interval);
break;
case GLFW_KEY_W:
wait_events = !wait_events;
printf("(( %sing for events ))\n", wait_events ? "poll" : "wait");
break; break;
case GLFW_KEY_T: case GLFW_KEY_T:
delay = !delay; track_cursor = !track_cursor;
printf("Delay %s.\n", delay ? "enabled" : "disabled");
break; break;
default: case GLFW_KEY_0:
{ glfwSetCursor(window, NULL);
if (delay) break;
{
int i = 0;
while (i < CommandCount && commands[i].key != key) case GLFW_KEY_1:
i++; glfwSetCursor(window, standard_cursors[0]);
break;
if (i < CommandCount) case GLFW_KEY_2:
commands[i].time = glfwGetTime(); glfwSetCursor(window, standard_cursors[1]);
} break;
else
{
command_callback(key);
}
}
break;
}
}
static void focus_callback(GLFWwindow* window, int focused) case GLFW_KEY_3:
{ glfwSetCursor(window, standard_cursors[2]);
if (focused) break;
{
activeWindow = window; case GLFW_KEY_4:
refresh_callback(windows[0]); glfwSetCursor(window, standard_cursors[3]);
refresh_callback(windows[1]); break;
case GLFW_KEY_5:
glfwSetCursor(window, standard_cursors[4]);
break;
case GLFW_KEY_6:
glfwSetCursor(window, standard_cursors[5]);
break;
} }
} }
int main(void) int main(void)
{ {
int i; int i;
GLboolean running = GL_TRUE; GLFWwindow* window;
GLFWcursor* star_cursors[CURSOR_FRAME_COUNT];
glfwSetErrorCallback(error_callback); glfwSetErrorCallback(error_callback);
if (!glfwInit()) if (!glfwInit())
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
for (i = 0; i < 2; i++) for (i = 0; i < CURSOR_FRAME_COUNT; i++)
{ {
windows[i] = glfwCreateWindow(W, H, "Cursor testing", NULL, NULL); star_cursors[i] = create_cursor_frame(i / (float) CURSOR_FRAME_COUNT);
if (!star_cursors[i])
if (!windows[i])
{ {
glfwTerminate(); glfwTerminate();
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
glfwSetWindowPos(windows[i], 100 + (i & 1) * (W + 50), 100);
glfwSetWindowRefreshCallback(windows[i], refresh_callback);
glfwSetFramebufferSizeCallback(windows[i], framebuffer_size_callback);
glfwSetKeyCallback(windows[i], key_callback);
glfwSetWindowFocusCallback(windows[i], focus_callback);
glfwMakeContextCurrent(windows[i]);
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(windows[i]);
} }
activeWindow = windows[0]; for (i = 0; i < sizeof(standard_cursors) / sizeof(standard_cursors[0]); i++)
key_callback(NULL, GLFW_KEY_H, 0, GLFW_PRESS, 0);
while (running)
{ {
if (delay) const int shapes[] = {
{ GLFW_ARROW_CURSOR,
int i; GLFW_IBEAM_CURSOR,
double t = glfwGetTime(); GLFW_CROSSHAIR_CURSOR,
GLFW_HAND_CURSOR,
GLFW_HRESIZE_CURSOR,
GLFW_VRESIZE_CURSOR
};
for (i = 0; i < CommandCount; i++) standard_cursors[i] = glfwCreateStandardCursor(shapes[i]);
{ if (!standard_cursors[i])
if (commands[i].time != 0 && t - commands[i].time >= 3.0) {
{ glfwTerminate();
command_callback(commands[i].key); exit(EXIT_FAILURE);
commands[i].time = 0; }
} }
}
window = glfwCreateWindow(640, 480, "Cursor Test", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwMakeContextCurrent(window);
glfwGetCursorPos(window, &cursor_x, &cursor_y);
printf("Cursor position: %f %f\n", cursor_x, cursor_y);
glfwSetCursorPosCallback(window, cursor_position_callback);
glfwSetKeyCallback(window, key_callback);
while (!glfwWindowShouldClose(window))
{
glClear(GL_COLOR_BUFFER_BIT);
if (track_cursor)
{
int wnd_width, wnd_height, fb_width, fb_height;
float scale;
glfwGetWindowSize(window, &wnd_width, &wnd_height);
glfwGetFramebufferSize(window, &fb_width, &fb_height);
scale = (float) fb_width / (float) wnd_width;
glViewport(0, 0, fb_width, fb_height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.f, fb_width, 0.f, fb_height, 0.f, 1.f);
glBegin(GL_LINES);
glVertex2f(0.f, (GLfloat) (fb_height - cursor_y * scale));
glVertex2f((GLfloat) fb_width, (GLfloat) (fb_height - cursor_y * scale));
glVertex2f((GLfloat) cursor_x * scale, 0.f);
glVertex2f((GLfloat) cursor_x * scale, (GLfloat) fb_height);
glEnd();
} }
running = !(glfwWindowShouldClose(windows[0]) || glfwWindowShouldClose(windows[1])); glfwSwapBuffers(window);
glfwPollEvents(); if (animate_cursor)
{
const int i = (int) (glfwGetTime() * 30.0) % CURSOR_FRAME_COUNT;
glfwSetCursor(window, star_cursors[i]);
}
if (wait_events)
glfwWaitEvents();
else
glfwPollEvents();
// Workaround for an issue with msvcrt and mintty
fflush(stdout);
} }
glfwDestroyWindow(window);
for (i = 0; i < CURSOR_FRAME_COUNT; i++)
glfwDestroyCursor(star_cursors[i]);
for (i = 0; i < sizeof(standard_cursors) / sizeof(standard_cursors[0]); i++)
glfwDestroyCursor(standard_cursors[i]);
glfwTerminate(); glfwTerminate();
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
} }

135
tests/cursoranim.c
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@ -1,135 +0,0 @@
//========================================================================
// Cursor animation
// 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.
//
//========================================================================
//
// Cursor animation test.
//
//========================================================================
#include <GLFW/glfw3.h>
#include <stdlib.h>
#include <math.h>
#ifdef min
#undef min
#endif
#ifdef max
#undef max
#endif
#define SIZE 64 // cursor size (width & height)
#define N 60 // number of frames
unsigned char buffer[4 * SIZE * SIZE];
static float max(float a, float b) { return a > b ? a : b; }
static float min(float a, float b) { return a < b ? a : b; }
static float star(int x, int y, float t)
{
float c = SIZE / 2.0f;
float i = (0.25f * (float)sin(2.0f * 3.1415926f * t) + 0.75f);
float k = SIZE * 0.046875f * i;
float dist = (float)sqrt((x - c) * (x - c) + (y - c) * (y - c));
float salpha = 1.0f - dist / c;
float xalpha = (float)x == c ? c : k / (float)fabs(x - c);
float yalpha = (float)y == c ? c : k / (float)fabs(y - c);
return max(0.0f, min(1.0f, i * salpha * 0.2f + salpha * xalpha * yalpha));
}
static GLFWcursor* load_frame(float t)
{
int i = 0, x, y;
const GLFWimage image = { SIZE, SIZE, buffer };
for (y = 0; y < image.width; y++)
{
for (x = 0; x < image.height; x++)
{
buffer[i++] = 255;
buffer[i++] = 255;
buffer[i++] = 255;
buffer[i++] = (unsigned char)(255 * star(x, y, t));
}
}
return glfwCreateCursor(&image, image.width / 2, image.height / 2);
}
int main(void)
{
int i;
double t0, t1, frameTime = 0.0;
GLFWwindow* window;
GLFWcursor* frames[N];
if (!glfwInit())
exit(EXIT_FAILURE);
window = glfwCreateWindow(640, 480, "Cursor animation", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
for (i = 0; i < N; i++)
frames[i] = load_frame(i / (float)N);
i = 0;
t0 = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
glClear(GL_COLOR_BUFFER_BIT);
glfwSetCursor(window, frames[i]);
glfwSwapBuffers(window);
glfwPollEvents();
t1 = glfwGetTime();
frameTime += t1 - t0;
t0 = t1;
while (frameTime > 1.0 / (double)N)
{
i = (i + 1) % N;
frameTime -= 1.0 / (double)N;
}
}
glfwTerminate();
exit(EXIT_SUCCESS);
}

151
tests/peter.c
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@ -1,151 +0,0 @@
//========================================================================
// Cursor mode 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 allows you to switch between the various cursor modes
//
//========================================================================
#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 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("%0.3f: Cursor position: %f %f (%f %f)\n",
glfwGetTime(),
x, y, x - cursor_x, y - cursor_y);
cursor_x = x;
cursor_y = y;
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (action != GLFW_PRESS)
return;
switch (key)
{
case GLFW_KEY_D:
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
printf("(( cursor is disabled ))\n");
break;
case GLFW_KEY_H:
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
printf("(( cursor is hidden ))\n");
break;
case GLFW_KEY_N:
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
printf("(( cursor is normal ))\n");
break;
case GLFW_KEY_R:
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;
}
// Workaround for an issue with msvcrt and mintty
fflush(stdout);
}
glfwTerminate();
exit(EXIT_SUCCESS);
}