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Diffstat (limited to 'libs/glfw-3.3.8/tests/monitors.c')
| -rw-r--r-- | libs/glfw-3.3.8/tests/monitors.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/libs/glfw-3.3.8/tests/monitors.c b/libs/glfw-3.3.8/tests/monitors.c new file mode 100644 index 0000000..2b75d7b --- /dev/null +++ b/libs/glfw-3.3.8/tests/monitors.c @@ -0,0 +1,260 @@ +//======================================================================== +// Monitor information tool +// 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 prints monitor and video mode information or verifies video +// modes +// +//======================================================================== + +#include <glad/gl.h> +#define GLFW_INCLUDE_NONE +#include <GLFW/glfw3.h> + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +#include "getopt.h" + +enum Mode +{ + LIST_MODE, + TEST_MODE +}; + +static void usage(void) +{ + printf("Usage: monitors [-t]\n"); + printf(" monitors -h\n"); +} + +static int euclid(int a, int b) +{ + return b ? euclid(b, a % b) : a; +} + +static const char* format_mode(const GLFWvidmode* mode) +{ + static char buffer[512]; + const int gcd = euclid(mode->width, mode->height); + + snprintf(buffer, + sizeof(buffer), + "%i x %i x %i (%i:%i) (%i %i %i) %i Hz", + mode->width, mode->height, + mode->redBits + mode->greenBits + mode->blueBits, + mode->width / gcd, mode->height / gcd, + mode->redBits, mode->greenBits, mode->blueBits, + mode->refreshRate); + + buffer[sizeof(buffer) - 1] = '\0'; + return buffer; +} + +static void error_callback(int error, const char* description) +{ + fprintf(stderr, "Error: %s\n", description); +} + +static void framebuffer_size_callback(GLFWwindow* window, int width, int height) +{ + printf("Framebuffer resized to %ix%i\n", width, height); + + glViewport(0, 0, width, height); +} + +static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) +{ + if (key == GLFW_KEY_ESCAPE) + glfwSetWindowShouldClose(window, GLFW_TRUE); +} + +static void list_modes(GLFWmonitor* monitor) +{ + int count, x, y, width_mm, height_mm, i; + int workarea_x, workarea_y, workarea_width, workarea_height; + float xscale, yscale; + + const GLFWvidmode* mode = glfwGetVideoMode(monitor); + const GLFWvidmode* modes = glfwGetVideoModes(monitor, &count); + + glfwGetMonitorPos(monitor, &x, &y); + glfwGetMonitorPhysicalSize(monitor, &width_mm, &height_mm); + glfwGetMonitorContentScale(monitor, &xscale, &yscale); + glfwGetMonitorWorkarea(monitor, &workarea_x, &workarea_y, &workarea_width, &workarea_height); + + printf("Name: %s (%s)\n", + glfwGetMonitorName(monitor), + glfwGetPrimaryMonitor() == monitor ? "primary" : "secondary"); + printf("Current mode: %s\n", format_mode(mode)); + printf("Virtual position: %i, %i\n", x, y); + printf("Content scale: %f x %f\n", xscale, yscale); + + printf("Physical size: %i x %i mm (%0.2f dpi at %i x %i)\n", + width_mm, height_mm, mode->width * 25.4f / width_mm, mode->width, mode->height); + printf("Monitor work area: %i x %i starting at %i, %i\n", + workarea_width, workarea_height, workarea_x, workarea_y); + + printf("Modes:\n"); + + for (i = 0; i < count; i++) + { + printf("%3u: %s", (unsigned int) i, format_mode(modes + i)); + + if (memcmp(mode, modes + i, sizeof(GLFWvidmode)) == 0) + printf(" (current mode)"); + + putchar('\n'); + } +} + +static void test_modes(GLFWmonitor* monitor) +{ + int i, count; + GLFWwindow* window; + const GLFWvidmode* modes = glfwGetVideoModes(monitor, &count); + + for (i = 0; i < count; i++) + { + const GLFWvidmode* mode = modes + i; + GLFWvidmode current; + + glfwWindowHint(GLFW_RED_BITS, mode->redBits); + glfwWindowHint(GLFW_GREEN_BITS, mode->greenBits); + glfwWindowHint(GLFW_BLUE_BITS, mode->blueBits); + glfwWindowHint(GLFW_REFRESH_RATE, mode->refreshRate); + + printf("Testing mode %u on monitor %s: %s\n", + (unsigned int) i, + glfwGetMonitorName(monitor), + format_mode(mode)); + + window = glfwCreateWindow(mode->width, mode->height, + "Video Mode Test", + glfwGetPrimaryMonitor(), + NULL); + if (!window) + { + printf("Failed to enter mode %u: %s\n", + (unsigned int) i, + format_mode(mode)); + continue; + } + + glfwSetFramebufferSizeCallback(window, framebuffer_size_callback); + glfwSetKeyCallback(window, key_callback); + + glfwMakeContextCurrent(window); + gladLoadGL(glfwGetProcAddress); + glfwSwapInterval(1); + + glfwSetTime(0.0); + + while (glfwGetTime() < 5.0) + { + glClear(GL_COLOR_BUFFER_BIT); + glfwSwapBuffers(window); + glfwPollEvents(); + + if (glfwWindowShouldClose(window)) + { + printf("User terminated program\n"); + + glfwTerminate(); + exit(EXIT_SUCCESS); + } + } + + glGetIntegerv(GL_RED_BITS, ¤t.redBits); + glGetIntegerv(GL_GREEN_BITS, ¤t.greenBits); + glGetIntegerv(GL_BLUE_BITS, ¤t.blueBits); + + glfwGetWindowSize(window, ¤t.width, ¤t.height); + + if (current.redBits != mode->redBits || + current.greenBits != mode->greenBits || + current.blueBits != mode->blueBits) + { + printf("*** Color bit mismatch: (%i %i %i) instead of (%i %i %i)\n", + current.redBits, current.greenBits, current.blueBits, + mode->redBits, mode->greenBits, mode->blueBits); + } + + if (current.width != mode->width || current.height != mode->height) + { + printf("*** Size mismatch: %ix%i instead of %ix%i\n", + current.width, current.height, + mode->width, mode->height); + } + + printf("Closing window\n"); + + glfwDestroyWindow(window); + window = NULL; + + glfwPollEvents(); + } +} + +int main(int argc, char** argv) +{ + int ch, i, count, mode = LIST_MODE; + GLFWmonitor** monitors; + + while ((ch = getopt(argc, argv, "th")) != -1) + { + switch (ch) + { + case 'h': + usage(); + exit(EXIT_SUCCESS); + case 't': + mode = TEST_MODE; + break; + default: + usage(); + exit(EXIT_FAILURE); + } + } + + glfwSetErrorCallback(error_callback); + + if (!glfwInit()) + exit(EXIT_FAILURE); + + monitors = glfwGetMonitors(&count); + + for (i = 0; i < count; i++) + { + if (mode == LIST_MODE) + list_modes(monitors[i]); + else if (mode == TEST_MODE) + test_modes(monitors[i]); + } + + glfwTerminate(); + exit(EXIT_SUCCESS); +} + |