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-rw-r--r--3rdparty/glfw/source/tests/inputlag.c310
1 files changed, 0 insertions, 310 deletions
diff --git a/3rdparty/glfw/source/tests/inputlag.c b/3rdparty/glfw/source/tests/inputlag.c
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--- a/3rdparty/glfw/source/tests/inputlag.c
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@@ -1,310 +0,0 @@
-//========================================================================
-// Input lag test
-// Copyright (c) Camilla Löwy <[email protected]>
-//
-// 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 renders a marker at the cursor position reported by GLFW to
-// check how much it lags behind the hardware mouse cursor
-//
-//========================================================================
-
-#define GLAD_GL_IMPLEMENTATION
-#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
-#include <nuklear.h>
-
-#define NK_GLFW_GL2_IMPLEMENTATION
-#include <nuklear_glfw_gl2.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "getopt.h"
-
-void usage(void)
-{
- printf("Usage: inputlag [-h] [-f]\n");
- printf("Options:\n");
- printf(" -f create full screen window\n");
- printf(" -h show this help\n");
-}
-
-struct nk_vec2 cursor_new, cursor_pos, cursor_vel;
-enum { cursor_sync_query, cursor_input_message } cursor_method = cursor_sync_query;
-
-void sample_input(GLFWwindow* window)
-{
- float a = .25; // exponential smoothing factor
-
- if (cursor_method == cursor_sync_query) {
- double x, y;
- glfwGetCursorPos(window, &x, &y);
- cursor_new.x = (float) x;
- cursor_new.y = (float) y;
- }
-
- cursor_vel.x = (cursor_new.x - cursor_pos.x) * a + cursor_vel.x * (1 - a);
- cursor_vel.y = (cursor_new.y - cursor_pos.y) * a + cursor_vel.y * (1 - a);
- cursor_pos = cursor_new;
-}
-
-void cursor_pos_callback(GLFWwindow* window, double xpos, double ypos)
-{
- cursor_new.x = (float) xpos;
- cursor_new.y = (float) ypos;
-}
-
-int enable_vsync = nk_true;
-
-void update_vsync()
-{
- glfwSwapInterval(enable_vsync == nk_true ? 1 : 0);
-}
-
-int swap_clear = nk_false;
-int swap_finish = nk_true;
-int swap_occlusion_query = nk_false;
-int swap_read_pixels = nk_false;
-GLuint occlusion_query;
-
-void swap_buffers(GLFWwindow* window)
-{
- glfwSwapBuffers(window);
-
- if (swap_clear)
- glClear(GL_COLOR_BUFFER_BIT);
-
- if (swap_finish)
- glFinish();
-
- if (swap_occlusion_query) {
- GLint occlusion_result;
- if (!occlusion_query)
- glGenQueries(1, &occlusion_query);
- glBeginQuery(GL_SAMPLES_PASSED, occlusion_query);
- glBegin(GL_POINTS);
- glVertex2f(0, 0);
- glEnd();
- glEndQuery(GL_SAMPLES_PASSED);
- glGetQueryObjectiv(occlusion_query, GL_QUERY_RESULT, &occlusion_result);
- }
-
- if (swap_read_pixels) {
- unsigned char rgba[4];
- glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, rgba);
- }
-}
-
-void error_callback(int error, const char* description)
-{
- fprintf(stderr, "Error: %s\n", description);
-}
-
-void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
-{
- if (action != GLFW_PRESS)
- return;
-
- switch (key)
- {
- case GLFW_KEY_ESCAPE:
- glfwSetWindowShouldClose(window, 1);
- break;
- }
-}
-
-void draw_marker(struct nk_command_buffer* canvas, int lead, struct nk_vec2 pos)
-{
- struct nk_color colors[4] = { nk_rgb(255,0,0), nk_rgb(255,255,0), nk_rgb(0,255,0), nk_rgb(0,96,255) };
- struct nk_rect rect = { -5 + pos.x, -5 + pos.y, 10, 10 };
- nk_fill_circle(canvas, rect, colors[lead]);
-}
-
-int main(int argc, char** argv)
-{
- int ch, width, height;
- unsigned long frame_count = 0;
- double last_time, current_time;
- double frame_rate = 0;
- int fullscreen = GLFW_FALSE;
- GLFWmonitor* monitor = NULL;
- GLFWwindow* window;
- struct nk_context* nk;
- struct nk_font_atlas* atlas;
-
- int show_forecasts = nk_true;
-
- while ((ch = getopt(argc, argv, "fh")) != -1)
- {
- switch (ch)
- {
- case 'h':
- usage();
- exit(EXIT_SUCCESS);
-
- case 'f':
- fullscreen = GLFW_TRUE;
- break;
- }
- }
-
- glfwSetErrorCallback(error_callback);
-
- if (!glfwInit())
- exit(EXIT_FAILURE);
-
- if (fullscreen)
- {
- const GLFWvidmode* mode;
-
- monitor = glfwGetPrimaryMonitor();
- mode = glfwGetVideoMode(monitor);
-
- width = mode->width;
- height = mode->height;
- }
- else
- {
- width = 640;
- height = 480;
- }
-
- glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
- glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-
- glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_TRUE);
- glfwWindowHint(GLFW_WIN32_KEYBOARD_MENU, GLFW_TRUE);
-
- window = glfwCreateWindow(width, height, "Input lag test", monitor, NULL);
- if (!window)
- {
- glfwTerminate();
- exit(EXIT_FAILURE);
- }
-
- glfwMakeContextCurrent(window);
- gladLoadGL(glfwGetProcAddress);
- update_vsync();
-
- last_time = glfwGetTime();
-
- nk = nk_glfw3_init(window, NK_GLFW3_INSTALL_CALLBACKS);
- nk_glfw3_font_stash_begin(&atlas);
- nk_glfw3_font_stash_end();
-
- glfwSetKeyCallback(window, key_callback);
- glfwSetCursorPosCallback(window, cursor_pos_callback);
-
- while (!glfwWindowShouldClose(window))
- {
- int width, height;
- struct nk_rect area;
-
- glfwPollEvents();
- sample_input(window);
-
- glfwGetWindowSize(window, &width, &height);
- area = nk_rect(0.f, 0.f, (float) width, (float) height);
-
- glClear(GL_COLOR_BUFFER_BIT);
- nk_glfw3_new_frame();
- if (nk_begin(nk, "", area, 0))
- {
- nk_flags align_left = NK_TEXT_ALIGN_LEFT | NK_TEXT_ALIGN_MIDDLE;
- struct nk_command_buffer *canvas = nk_window_get_canvas(nk);
- int lead;
-
- for (lead = show_forecasts ? 3 : 0; lead >= 0; lead--)
- draw_marker(canvas, lead, nk_vec2(cursor_pos.x + cursor_vel.x * lead,
- cursor_pos.y + cursor_vel.y * lead));
-
- // print instructions
- nk_layout_row_dynamic(nk, 20, 1);
- nk_label(nk, "Move mouse uniformly and check marker under cursor:", align_left);
- for (lead = 0; lead <= 3; lead++) {
- nk_layout_row_begin(nk, NK_STATIC, 12, 2);
- nk_layout_row_push(nk, 25);
- draw_marker(canvas, lead, nk_layout_space_to_screen(nk, nk_vec2(20, 5)));
- nk_label(nk, "", 0);
- nk_layout_row_push(nk, 500);
- if (lead == 0)
- nk_label(nk, "- current cursor position (no input lag)", align_left);
- else
- nk_labelf(nk, align_left, "- %d-frame forecast (input lag is %d frame)", lead, lead);
- nk_layout_row_end(nk);
- }
-
- nk_layout_row_dynamic(nk, 20, 1);
-
- nk_checkbox_label(nk, "Show forecasts", &show_forecasts);
- nk_label(nk, "Input method:", align_left);
- if (nk_option_label(nk, "glfwGetCursorPos (sync query)", cursor_method == cursor_sync_query))
- cursor_method = cursor_sync_query;
- if (nk_option_label(nk, "glfwSetCursorPosCallback (latest input message)", cursor_method == cursor_input_message))
- cursor_method = cursor_input_message;
-
- nk_label(nk, "", 0); // separator
-
- nk_value_float(nk, "FPS", (float) frame_rate);
- if (nk_checkbox_label(nk, "Enable vsync", &enable_vsync))
- update_vsync();
-
- nk_label(nk, "", 0); // separator
-
- nk_label(nk, "After swap:", align_left);
- nk_checkbox_label(nk, "glClear", &swap_clear);
- nk_checkbox_label(nk, "glFinish", &swap_finish);
- nk_checkbox_label(nk, "draw with occlusion query", &swap_occlusion_query);
- nk_checkbox_label(nk, "glReadPixels", &swap_read_pixels);
- }
-
- nk_end(nk);
- nk_glfw3_render(NK_ANTI_ALIASING_ON);
-
- swap_buffers(window);
-
- frame_count++;
-
- current_time = glfwGetTime();
- if (current_time - last_time > 1.0)
- {
- frame_rate = frame_count / (current_time - last_time);
- frame_count = 0;
- last_time = current_time;
- }
- }
-
- glfwTerminate();
- exit(EXIT_SUCCESS);
-}
-
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