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Add glfwSetJoystickCallback

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This commit is contained in:
Camilla Berglund
2015-12-13 17:38:50 +01:00
parent bdd17c337f
commit 8a7fa306ce
12 changed files with 223 additions and 104 deletions
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24
tests/events.c
View File

@@ -451,6 +451,29 @@ static void monitor_callback(GLFWmonitor* monitor, int event)
}
}
static void joystick_callback(int joy, int event)
{
if (event == GLFW_CONNECTED)
{
int axisCount, buttonCount;
glfwGetJoystickAxes(joy, &axisCount);
glfwGetJoystickButtons(joy, &buttonCount);
printf("%08x at %0.3f: Joystick %i (%s) was connected with %i axes and %i buttons\n",
counter++, glfwGetTime(),
joy,
glfwGetJoystickName(joy),
axisCount,
buttonCount);
}
else
{
printf("%08x at %0.3f: Joystick %i was disconnected\n",
counter++, glfwGetTime(), joy);
}
}
int main(int argc, char** argv)
{
Slot* slots;
@@ -467,6 +490,7 @@ int main(int argc, char** argv)
printf("Library initialized\n");
glfwSetMonitorCallback(monitor_callback);
glfwSetJoystickCallback(joystick_callback);
while ((ch = getopt(argc, argv, "hfn:")) != -1)
{

142
tests/joysticks.c
View File

@@ -39,17 +39,7 @@
#define strdup(x) _strdup(x)
#endif
typedef struct Joystick
{
int present;
char* name;
float* axes;
unsigned char* buttons;
int axis_count;
int button_count;
} Joystick;
static Joystick joysticks[GLFW_JOYSTICK_LAST - GLFW_JOYSTICK_1 + 1];
static int joysticks[GLFW_JOYSTICK_LAST + 1];
static int joystick_count = 0;
static void error_callback(int error, const char* description)
@@ -62,19 +52,23 @@ static void framebuffer_size_callback(GLFWwindow* window, int width, int height)
glViewport(0, 0, width, height);
}
static void draw_joystick(Joystick* j, int x, int y, int width, int height)
static void draw_joystick(int index, int x, int y, int width, int height)
{
int i;
int axis_count, button_count;
const float* axes;
const unsigned char* buttons;
const int axis_height = 3 * height / 4;
const int button_height = height / 4;
if (j->axis_count)
axes = glfwGetJoystickAxes(joysticks[index], &axis_count);
if (axis_count)
{
const int axis_width = width / j->axis_count;
const int axis_width = width / axis_count;
for (i = 0; i < j->axis_count; i++)
for (i = 0; i < axis_count; i++)
{
float value = j->axes[i] / 2.f + 0.5f;
float value = axes[i] / 2.f + 0.5f;
glColor3f(0.3f, 0.3f, 0.3f);
glRecti(x + i * axis_width,
@@ -90,13 +84,14 @@ static void draw_joystick(Joystick* j, int x, int y, int width, int height)
}
}
if (j->button_count)
buttons = glfwGetJoystickButtons(joysticks[index], &button_count);
if (button_count)
{
const int button_width = width / j->button_count;
const int button_width = width / button_count;
for (i = 0; i < j->button_count; i++)
for (i = 0; i < button_count; i++)
{
if (j->buttons[i])
if (buttons[i])
glColor3f(1.f, 1.f, 1.f);
else
glColor3f(0.3f, 0.3f, 0.3f);
@@ -120,79 +115,58 @@ static void draw_joysticks(GLFWwindow* window)
glOrtho(0.f, width, height, 0.f, 1.f, -1.f);
glMatrixMode(GL_MODELVIEW);
for (i = 0; i < sizeof(joysticks) / sizeof(Joystick); i++)
for (i = 0; i < joystick_count; i++)
{
Joystick* j = joysticks + i;
if (j->present)
{
draw_joystick(j,
0, offset * height / joystick_count,
width, height / joystick_count);
offset++;
}
draw_joystick(i,
0, offset * height / joystick_count,
width, height / joystick_count);
offset++;
}
}
static void refresh_joysticks(void)
static void joystick_callback(int joy, int event)
{
int i;
for (i = 0; i < sizeof(joysticks) / sizeof(Joystick); i++)
if (event == GLFW_CONNECTED)
{
Joystick* j = joysticks + i;
int axis_count, button_count;
if (glfwJoystickPresent(GLFW_JOYSTICK_1 + i))
glfwGetJoystickAxes(joy, &axis_count);
glfwGetJoystickButtons(joy, &button_count);
printf("Found joystick %i named \'%s\' with %i axes, %i buttons\n",
joy + 1,
glfwGetJoystickName(joy),
axis_count,
button_count);
joysticks[joystick_count++] = joy;
}
else if (event == GLFW_DISCONNECTED)
{
int i;
for (i = 0; i < joystick_count; i++)
{
const float* axes;
const unsigned char* buttons;
int axis_count, button_count;
free(j->name);
j->name = strdup(glfwGetJoystickName(GLFW_JOYSTICK_1 + i));
axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1 + i, &axis_count);
if (axis_count != j->axis_count)
{
j->axis_count = axis_count;
j->axes = realloc(j->axes, j->axis_count * sizeof(float));
}
memcpy(j->axes, axes, axis_count * sizeof(float));
buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1 + i, &button_count);
if (button_count != j->button_count)
{
j->button_count = button_count;
j->buttons = realloc(j->buttons, j->button_count);
}
memcpy(j->buttons, buttons, button_count * sizeof(unsigned char));
if (!j->present)
{
printf("Found joystick %i named \'%s\' with %i axes, %i buttons\n",
i + 1, j->name, j->axis_count, j->button_count);
joystick_count++;
}
j->present = GLFW_TRUE;
if (joysticks[i] == joy)
break;
}
else
{
if (j->present)
{
printf("Lost joystick %i named \'%s\'\n", i + 1, j->name);
free(j->name);
free(j->axes);
free(j->buttons);
memset(j, 0, sizeof(Joystick));
for (i = i + 1; i < joystick_count; i++)
joysticks[i - 1] = joysticks[i];
joystick_count--;
}
}
printf("Lost joystick %i\n", joy + 1);
joystick_count--;
}
}
static void find_joysticks(void)
{
int joy;
for (joy = GLFW_JOYSTICK_1; joy <= GLFW_JOYSTICK_LAST; joy++)
{
if (glfwJoystickPresent(joy))
joystick_callback(joy, GLFW_CONNECTED);
}
}
@@ -207,6 +181,9 @@ int main(void)
if (!glfwInit())
exit(EXIT_FAILURE);
find_joysticks();
glfwSetJoystickCallback(joystick_callback);
window = glfwCreateWindow(640, 480, "Joystick Test", NULL, NULL);
if (!window)
{
@@ -224,7 +201,6 @@ int main(void)
{
glClear(GL_COLOR_BUFFER_BIT);
refresh_joysticks();
draw_joysticks(window);
glfwSwapBuffers(window);