345 lines
10 KiB
C
345 lines
10 KiB
C
//========================================================================
|
|
// Joystick input test
|
|
// Copyright (c) Camilla Löwy <elmindreda@glfw.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 displays the state of every button and axis of every connected
|
|
// joystick and/or gamepad
|
|
//
|
|
//========================================================================
|
|
|
|
#include <glad/gl.h>
|
|
#define GLFW_INCLUDE_NONE
|
|
#include <GLFW/glfw3.h>
|
|
|
|
#define NK_IMPLEMENTATION
|
|
#define NK_INCLUDE_FIXED_TYPES
|
|
#define NK_INCLUDE_FONT_BAKING
|
|
#define NK_INCLUDE_DEFAULT_FONT
|
|
#define NK_INCLUDE_DEFAULT_ALLOCATOR
|
|
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
|
|
#define NK_INCLUDE_STANDARD_VARARGS
|
|
#define NK_BUTTON_TRIGGER_ON_RELEASE
|
|
#include <nuklear.h>
|
|
|
|
#define NK_GLFW_GL2_IMPLEMENTATION
|
|
#include <nuklear_glfw_gl2.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifdef _MSC_VER
|
|
#define strdup(x) _strdup(x)
|
|
#endif
|
|
|
|
static GLFWwindow* window;
|
|
static int joysticks[GLFW_JOYSTICK_LAST + 1];
|
|
static int joystick_count = 0;
|
|
|
|
static void error_callback(int error, const char* description)
|
|
{
|
|
fprintf(stderr, "Error: %s\n", description);
|
|
}
|
|
|
|
static void joystick_callback(int jid, int event)
|
|
{
|
|
if (event == GLFW_CONNECTED)
|
|
joysticks[joystick_count++] = jid;
|
|
else if (event == GLFW_DISCONNECTED)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < joystick_count; i++)
|
|
{
|
|
if (joysticks[i] == jid)
|
|
break;
|
|
}
|
|
|
|
for (i = i + 1; i < joystick_count; i++)
|
|
joysticks[i - 1] = joysticks[i];
|
|
|
|
joystick_count--;
|
|
}
|
|
|
|
if (!glfwGetWindowAttrib(window, GLFW_FOCUSED))
|
|
glfwRequestWindowAttention(window);
|
|
}
|
|
|
|
static void drop_callback(GLFWwindow* window, int count, const char* paths[])
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
long size;
|
|
char* text;
|
|
FILE* stream = fopen(paths[i], "rb");
|
|
if (!stream)
|
|
continue;
|
|
|
|
fseek(stream, 0, SEEK_END);
|
|
size = ftell(stream);
|
|
fseek(stream, 0, SEEK_SET);
|
|
|
|
text = malloc(size + 1);
|
|
text[size] = '\0';
|
|
if (fread(text, 1, size, stream) == size)
|
|
glfwUpdateGamepadMappings(text);
|
|
|
|
free(text);
|
|
fclose(stream);
|
|
}
|
|
}
|
|
|
|
static const char* joystick_label(int jid)
|
|
{
|
|
static char label[1024];
|
|
snprintf(label, sizeof(label), "%i: %s", jid + 1, glfwGetJoystickName(jid));
|
|
return label;
|
|
}
|
|
|
|
static void hat_widget(struct nk_context* nk, unsigned char state)
|
|
{
|
|
float radius;
|
|
struct nk_rect area;
|
|
struct nk_vec2 center;
|
|
|
|
if (nk_widget(&area, nk) == NK_WIDGET_INVALID)
|
|
return;
|
|
|
|
center = nk_vec2(area.x + area.w / 2.f, area.y + area.h / 2.f);
|
|
radius = NK_MIN(area.w, area.h) / 2.f;
|
|
|
|
nk_stroke_circle(nk_window_get_canvas(nk),
|
|
nk_rect(center.x - radius,
|
|
center.y - radius,
|
|
radius * 2.f,
|
|
radius * 2.f),
|
|
1.f,
|
|
nk_rgb(175, 175, 175));
|
|
|
|
if (state)
|
|
{
|
|
const float angles[] =
|
|
{
|
|
0.f, 0.f,
|
|
NK_PI * 1.5f, NK_PI * 1.75f,
|
|
NK_PI, 0.f,
|
|
NK_PI * 1.25f, 0.f,
|
|
NK_PI * 0.5f, NK_PI * 0.25f,
|
|
0.f, 0.f,
|
|
NK_PI * 0.75f, 0.f,
|
|
};
|
|
const float cosa = nk_cos(angles[state]);
|
|
const float sina = nk_sin(angles[state]);
|
|
const struct nk_vec2 p0 = nk_vec2(0.f, -radius);
|
|
const struct nk_vec2 p1 = nk_vec2( radius / 2.f, -radius / 3.f);
|
|
const struct nk_vec2 p2 = nk_vec2(-radius / 2.f, -radius / 3.f);
|
|
|
|
nk_fill_triangle(nk_window_get_canvas(nk),
|
|
center.x + cosa * p0.x + sina * p0.y,
|
|
center.y + cosa * p0.y - sina * p0.x,
|
|
center.x + cosa * p1.x + sina * p1.y,
|
|
center.y + cosa * p1.y - sina * p1.x,
|
|
center.x + cosa * p2.x + sina * p2.y,
|
|
center.y + cosa * p2.y - sina * p2.x,
|
|
nk_rgb(175, 175, 175));
|
|
}
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
int jid, hat_buttons = GLFW_FALSE;
|
|
struct nk_context* nk;
|
|
struct nk_font_atlas* atlas;
|
|
|
|
memset(joysticks, 0, sizeof(joysticks));
|
|
|
|
glfwSetErrorCallback(error_callback);
|
|
|
|
if (!glfwInit())
|
|
exit(EXIT_FAILURE);
|
|
|
|
glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_TRUE);
|
|
|
|
window = glfwCreateWindow(800, 600, "Joystick Test", NULL, NULL);
|
|
if (!window)
|
|
{
|
|
glfwTerminate();
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
glfwMakeContextCurrent(window);
|
|
gladLoadGL(glfwGetProcAddress);
|
|
glfwSwapInterval(1);
|
|
|
|
nk = nk_glfw3_init(window, NK_GLFW3_INSTALL_CALLBACKS);
|
|
nk_glfw3_font_stash_begin(&atlas);
|
|
nk_glfw3_font_stash_end();
|
|
|
|
for (jid = GLFW_JOYSTICK_1; jid <= GLFW_JOYSTICK_LAST; jid++)
|
|
{
|
|
if (glfwJoystickPresent(jid))
|
|
joysticks[joystick_count++] = jid;
|
|
}
|
|
|
|
glfwSetJoystickCallback(joystick_callback);
|
|
glfwSetDropCallback(window, drop_callback);
|
|
|
|
while (!glfwWindowShouldClose(window))
|
|
{
|
|
int i, width, height;
|
|
|
|
glfwGetWindowSize(window, &width, &height);
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
nk_glfw3_new_frame();
|
|
|
|
if (nk_begin(nk,
|
|
"Joysticks",
|
|
nk_rect(width - 200.f, 0.f, 200.f, (float) height),
|
|
NK_WINDOW_MINIMIZABLE |
|
|
NK_WINDOW_TITLE))
|
|
{
|
|
nk_layout_row_dynamic(nk, 30, 1);
|
|
|
|
nk_checkbox_label(nk, "Hat buttons", &hat_buttons);
|
|
|
|
if (joystick_count)
|
|
{
|
|
for (i = 0; i < joystick_count; i++)
|
|
{
|
|
if (nk_button_label(nk, joystick_label(joysticks[i])))
|
|
nk_window_set_focus(nk, joystick_label(joysticks[i]));
|
|
}
|
|
}
|
|
else
|
|
nk_label(nk, "No joysticks connected", NK_TEXT_LEFT);
|
|
}
|
|
|
|
nk_end(nk);
|
|
|
|
for (i = 0; i < joystick_count; i++)
|
|
{
|
|
if (nk_begin(nk,
|
|
joystick_label(joysticks[i]),
|
|
nk_rect(i * 20.f, i * 20.f, 550.f, 570.f),
|
|
NK_WINDOW_BORDER |
|
|
NK_WINDOW_MOVABLE |
|
|
NK_WINDOW_SCALABLE |
|
|
NK_WINDOW_MINIMIZABLE |
|
|
NK_WINDOW_TITLE))
|
|
{
|
|
int j, axis_count, button_count, hat_count;
|
|
const float* axes;
|
|
const unsigned char* buttons;
|
|
const unsigned char* hats;
|
|
GLFWgamepadstate state;
|
|
|
|
nk_layout_row_dynamic(nk, 30, 1);
|
|
nk_labelf(nk, NK_TEXT_LEFT, "Hardware GUID %s",
|
|
glfwGetJoystickGUID(joysticks[i]));
|
|
nk_label(nk, "Joystick state", NK_TEXT_LEFT);
|
|
|
|
axes = glfwGetJoystickAxes(joysticks[i], &axis_count);
|
|
buttons = glfwGetJoystickButtons(joysticks[i], &button_count);
|
|
hats = glfwGetJoystickHats(joysticks[i], &hat_count);
|
|
|
|
if (!hat_buttons)
|
|
button_count -= hat_count * 4;
|
|
|
|
for (j = 0; j < axis_count; j++)
|
|
nk_slide_float(nk, -1.f, axes[j], 1.f, 0.1f);
|
|
|
|
nk_layout_row_dynamic(nk, 30, 12);
|
|
|
|
for (j = 0; j < button_count; j++)
|
|
{
|
|
char name[16];
|
|
snprintf(name, sizeof(name), "%i", j + 1);
|
|
nk_select_label(nk, name, NK_TEXT_CENTERED, buttons[j]);
|
|
}
|
|
|
|
nk_layout_row_dynamic(nk, 30, 8);
|
|
|
|
for (j = 0; j < hat_count; j++)
|
|
hat_widget(nk, hats[j]);
|
|
|
|
nk_layout_row_dynamic(nk, 30, 1);
|
|
|
|
if (glfwGetGamepadState(joysticks[i], &state))
|
|
{
|
|
int hat = 0;
|
|
const char* names[GLFW_GAMEPAD_BUTTON_LAST + 1 - 4] =
|
|
{
|
|
"A", "B", "X", "Y",
|
|
"LB", "RB",
|
|
"Back", "Start", "Guide",
|
|
"LT", "RT",
|
|
};
|
|
|
|
nk_labelf(nk, NK_TEXT_LEFT,
|
|
"Gamepad state: %s",
|
|
glfwGetGamepadName(joysticks[i]));
|
|
|
|
nk_layout_row_dynamic(nk, 30, 2);
|
|
|
|
for (j = 0; j <= GLFW_GAMEPAD_AXIS_LAST; j++)
|
|
nk_slide_float(nk, -1.f, state.axes[j], 1.f, 0.1f);
|
|
|
|
nk_layout_row_dynamic(nk, 30, GLFW_GAMEPAD_BUTTON_LAST + 1 - 4);
|
|
|
|
for (j = 0; j <= GLFW_GAMEPAD_BUTTON_LAST - 4; j++)
|
|
nk_select_label(nk, names[j], NK_TEXT_CENTERED, state.buttons[j]);
|
|
|
|
if (state.buttons[GLFW_GAMEPAD_BUTTON_DPAD_UP])
|
|
hat |= GLFW_HAT_UP;
|
|
if (state.buttons[GLFW_GAMEPAD_BUTTON_DPAD_RIGHT])
|
|
hat |= GLFW_HAT_RIGHT;
|
|
if (state.buttons[GLFW_GAMEPAD_BUTTON_DPAD_DOWN])
|
|
hat |= GLFW_HAT_DOWN;
|
|
if (state.buttons[GLFW_GAMEPAD_BUTTON_DPAD_LEFT])
|
|
hat |= GLFW_HAT_LEFT;
|
|
|
|
nk_layout_row_dynamic(nk, 30, 8);
|
|
hat_widget(nk, hat);
|
|
}
|
|
else
|
|
nk_label(nk, "Joystick has no gamepad mapping", NK_TEXT_LEFT);
|
|
}
|
|
|
|
nk_end(nk);
|
|
}
|
|
|
|
nk_glfw3_render(NK_ANTI_ALIASING_ON);
|
|
|
|
glfwSwapBuffers(window);
|
|
glfwPollEvents();
|
|
}
|
|
|
|
glfwTerminate();
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
|