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Diffstat (limited to 'libs/glfw-3.3.8/tests/joysticks.c')
| -rw-r--r-- | libs/glfw-3.3.8/tests/joysticks.c | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/libs/glfw-3.3.8/tests/joysticks.c b/libs/glfw-3.3.8/tests/joysticks.c new file mode 100644 index 0000000..8eae021 --- /dev/null +++ b/libs/glfw-3.3.8/tests/joysticks.c @@ -0,0 +1,344 @@ +//======================================================================== +// 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); +} + |