Camilla Berglund
ago%!(EXTRA string=10 years)
parent
04c057238b
commit
33c7c28dde
6 changed files with 188 additions and 598 deletions
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//========================================================================
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// Mouse cursor accuracy test
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// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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//
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// This test came about as the result of bug #1867804
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//
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// No sign of said bug has so far been detected
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//
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//========================================================================
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#include <GLFW/glfw3.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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static double cursor_x = 0.0, cursor_y = 0.0; |
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static int swap_interval = 1; |
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static void set_swap_interval(GLFWwindow* window, int interval) |
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{ |
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char title[256]; |
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swap_interval = interval; |
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glfwSwapInterval(swap_interval); |
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sprintf(title, "Cursor Inaccuracy Detector (interval %i)", swap_interval); |
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glfwSetWindowTitle(window, title); |
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} |
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static void error_callback(int error, const char* description) |
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{ |
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fprintf(stderr, "Error: %s\n", description); |
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} |
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static void cursor_position_callback(GLFWwindow* window, double x, double y) |
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{ |
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cursor_x = x; |
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cursor_y = y; |
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} |
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static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) |
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{ |
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if (key == GLFW_KEY_SPACE && action == GLFW_PRESS) |
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set_swap_interval(window, 1 - swap_interval); |
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} |
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int main(void) |
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{ |
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GLFWwindow* window; |
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glfwSetErrorCallback(error_callback); |
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if (!glfwInit()) |
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exit(EXIT_FAILURE); |
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window = glfwCreateWindow(640, 480, "", NULL, NULL); |
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if (!window) |
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{ |
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glfwTerminate(); |
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exit(EXIT_FAILURE); |
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} |
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glfwSetCursorPosCallback(window, cursor_position_callback); |
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glfwSetKeyCallback(window, key_callback); |
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glfwMakeContextCurrent(window); |
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set_swap_interval(window, swap_interval); |
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while (!glfwWindowShouldClose(window)) |
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{ |
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int wnd_width, wnd_height, fb_width, fb_height; |
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float scale; |
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glfwGetWindowSize(window, &wnd_width, &wnd_height); |
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glfwGetFramebufferSize(window, &fb_width, &fb_height); |
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scale = (float) fb_width / (float) wnd_width; |
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glClear(GL_COLOR_BUFFER_BIT); |
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glViewport(0, 0, fb_width, fb_height); |
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glMatrixMode(GL_PROJECTION); |
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glLoadIdentity(); |
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glOrtho(0.f, fb_width, 0.f, fb_height, 0.f, 1.f); |
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glBegin(GL_LINES); |
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glVertex2f(0.f, (GLfloat) (fb_height - cursor_y * scale)); |
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glVertex2f((GLfloat) fb_width, (GLfloat) (fb_height - cursor_y * scale)); |
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glVertex2f((GLfloat) cursor_x * scale, 0.f); |
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glVertex2f((GLfloat) cursor_x * scale, (GLfloat) fb_height); |
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glEnd(); |
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glfwSwapBuffers(window); |
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glfwPollEvents(); |
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} |
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glfwTerminate(); |
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exit(EXIT_SUCCESS); |
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} |
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@ -1,135 +0,0 @@ |
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//========================================================================
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// Cursor animation
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// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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//
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// Cursor animation test.
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//
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//========================================================================
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#include <GLFW/glfw3.h> |
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#include <stdlib.h> |
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#include <math.h> |
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#ifdef min |
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#undef min |
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#endif |
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#ifdef max |
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#undef max |
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#endif |
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#define SIZE 64 // cursor size (width & height)
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#define N 60 // number of frames
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unsigned char buffer[4 * SIZE * SIZE]; |
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static float max(float a, float b) { return a > b ? a : b; } |
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static float min(float a, float b) { return a < b ? a : b; } |
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static float star(int x, int y, float t) |
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{ |
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float c = SIZE / 2.0f; |
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float i = (0.25f * (float)sin(2.0f * 3.1415926f * t) + 0.75f); |
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float k = SIZE * 0.046875f * i; |
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float dist = (float)sqrt((x - c) * (x - c) + (y - c) * (y - c)); |
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float salpha = 1.0f - dist / c; |
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float xalpha = (float)x == c ? c : k / (float)fabs(x - c); |
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float yalpha = (float)y == c ? c : k / (float)fabs(y - c); |
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return max(0.0f, min(1.0f, i * salpha * 0.2f + salpha * xalpha * yalpha)); |
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} |
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static GLFWcursor* load_frame(float t) |
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{ |
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int i = 0, x, y; |
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const GLFWimage image = { SIZE, SIZE, buffer }; |
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for (y = 0; y < image.width; y++) |
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{ |
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for (x = 0; x < image.height; x++) |
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{ |
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buffer[i++] = 255; |
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buffer[i++] = 255; |
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buffer[i++] = 255; |
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buffer[i++] = (unsigned char)(255 * star(x, y, t)); |
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} |
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} |
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return glfwCreateCursor(&image, image.width / 2, image.height / 2); |
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} |
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int main(void) |
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{ |
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int i; |
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double t0, t1, frameTime = 0.0; |
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GLFWwindow* window; |
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GLFWcursor* frames[N]; |
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if (!glfwInit()) |
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exit(EXIT_FAILURE); |
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window = glfwCreateWindow(640, 480, "Cursor animation", NULL, NULL); |
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if (!window) |
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{ |
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glfwTerminate(); |
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exit(EXIT_FAILURE); |
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} |
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glfwMakeContextCurrent(window); |
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glfwSwapInterval(1); |
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for (i = 0; i < N; i++) |
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frames[i] = load_frame(i / (float)N); |
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i = 0; |
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t0 = glfwGetTime(); |
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while (!glfwWindowShouldClose(window)) |
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{ |
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glClear(GL_COLOR_BUFFER_BIT); |
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glfwSetCursor(window, frames[i]); |
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glfwSwapBuffers(window); |
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glfwPollEvents(); |
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t1 = glfwGetTime(); |
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frameTime += t1 - t0; |
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t0 = t1; |
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while (frameTime > 1.0 / (double)N) |
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{ |
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i = (i + 1) % N; |
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frameTime -= 1.0 / (double)N; |
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} |
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} |
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glfwTerminate(); |
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exit(EXIT_SUCCESS); |
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} |
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@ -1,151 +0,0 @@ |
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//========================================================================
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// Cursor mode test
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// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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//
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// This test allows you to switch between the various cursor modes
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//
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//========================================================================
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#include <GLFW/glfw3.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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static GLboolean reopen = GL_FALSE; |
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static double cursor_x; |
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static double cursor_y; |
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static void error_callback(int error, const char* description) |
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{ |
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fprintf(stderr, "Error: %s\n", description); |
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} |
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static void cursor_position_callback(GLFWwindow* window, double x, double y) |
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{ |
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printf("%0.3f: Cursor position: %f %f (%f %f)\n", |
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glfwGetTime(), |
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x, y, x - cursor_x, y - cursor_y); |
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cursor_x = x; |
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cursor_y = y; |
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} |
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static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) |
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{ |
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if (action != GLFW_PRESS) |
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return; |
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switch (key) |
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{ |
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case GLFW_KEY_D: |
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glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED); |
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printf("(( cursor is disabled ))\n"); |
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break; |
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case GLFW_KEY_H: |
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glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN); |
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printf("(( cursor is hidden ))\n"); |
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break; |
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case GLFW_KEY_N: |
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glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL); |
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printf("(( cursor is normal ))\n"); |
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break; |
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case GLFW_KEY_R: |
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reopen = GL_TRUE; |
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break; |
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} |
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} |
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static void framebuffer_size_callback(GLFWwindow* window, int width, int height) |
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{ |
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glViewport(0, 0, width, height); |
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} |
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static GLFWwindow* open_window(void) |
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{ |
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GLFWwindow* window = glfwCreateWindow(640, 480, "Peter Detector", NULL, NULL); |
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if (!window) |
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return NULL; |
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glfwMakeContextCurrent(window); |
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glfwSwapInterval(1); |
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glfwGetCursorPos(window, &cursor_x, &cursor_y); |
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printf("Cursor position: %f %f\n", cursor_x, cursor_y); |
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glfwSetFramebufferSizeCallback(window, framebuffer_size_callback); |
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glfwSetCursorPosCallback(window, cursor_position_callback); |
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glfwSetKeyCallback(window, key_callback); |
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return window; |
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} |
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int main(void) |
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{ |
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GLFWwindow* window; |
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glfwSetErrorCallback(error_callback); |
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if (!glfwInit()) |
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exit(EXIT_FAILURE); |
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window = open_window(); |
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if (!window) |
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{ |
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glfwTerminate(); |
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exit(EXIT_FAILURE); |
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} |
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glClearColor(0.f, 0.f, 0.f, 0.f); |
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while (!glfwWindowShouldClose(window)) |
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{ |
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glClear(GL_COLOR_BUFFER_BIT); |
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glfwSwapBuffers(window); |
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glfwWaitEvents(); |
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if (reopen) |
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{ |
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glfwDestroyWindow(window); |
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window = open_window(); |
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if (!window) |
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{ |
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glfwTerminate(); |
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exit(EXIT_FAILURE); |
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} |
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reopen = GL_FALSE; |
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} |
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// Workaround for an issue with msvcrt and mintty
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fflush(stdout); |
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} |
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glfwTerminate(); |
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exit(EXIT_SUCCESS); |
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} |
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