:wMerge branch 'gl-window' into main

1 files changed, 943 insertions, 0 deletions

diff --git a/libs/glfw-3.3.8/tests/glfwinfo.c b/libs/glfw-3.3.8/tests/glfwinfo.c
new file mode 100644
index 0000000..f681e0a
--- /dev/null
+++ b/libs/glfw-3.3.8/tests/glfwinfo.c
@@ -0,0 +1,943 @@
+//========================================================================
+// Context creation and 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.
+//
+//========================================================================
+
+#include <glad/gl.h>
+#include <glad/vulkan.h>
+#define GLFW_INCLUDE_NONE
+#include <GLFW/glfw3.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "getopt.h"
+
+#ifdef _MSC_VER
+#define strcasecmp(x, y) _stricmp(x, y)
+#endif
+
+#define API_NAME_OPENGL     "gl"
+#define API_NAME_OPENGL_ES  "es"
+
+#define API_NAME_NATIVE     "native"
+#define API_NAME_EGL        "egl"
+#define API_NAME_OSMESA     "osmesa"
+
+#define PROFILE_NAME_CORE   "core"
+#define PROFILE_NAME_COMPAT "compat"
+
+#define STRATEGY_NAME_NONE  "none"
+#define STRATEGY_NAME_LOSE  "lose"
+
+#define BEHAVIOR_NAME_NONE  "none"
+#define BEHAVIOR_NAME_FLUSH "flush"
+
+static void usage(void)
+{
+    printf("Usage: glfwinfo [OPTION]...\n");
+    printf("Options:\n");
+    printf("  -a, --client-api=API      the client API to use ("
+                                        API_NAME_OPENGL " or "
+                                        API_NAME_OPENGL_ES ")\n");
+    printf("  -b, --behavior=BEHAVIOR   the release behavior to use ("
+                                        BEHAVIOR_NAME_NONE " or "
+                                        BEHAVIOR_NAME_FLUSH ")\n");
+    printf("  -c, --context-api=API     the context creation API to use ("
+                                        API_NAME_NATIVE " or "
+                                        API_NAME_EGL " or "
+                                        API_NAME_OSMESA ")\n");
+    printf("  -d, --debug               request a debug context\n");
+    printf("  -f, --forward             require a forward-compatible context\n");
+    printf("  -h, --help                show this help\n");
+    printf("  -l, --list-extensions     list all Vulkan and client API extensions\n");
+    printf("      --list-layers         list all Vulkan layers\n");
+    printf("  -m, --major=MAJOR         the major number of the required "
+                                        "client API version\n");
+    printf("  -n, --minor=MINOR         the minor number of the required "
+                                        "client API version\n");
+    printf("  -p, --profile=PROFILE     the OpenGL profile to use ("
+                                        PROFILE_NAME_CORE " or "
+                                        PROFILE_NAME_COMPAT ")\n");
+    printf("  -s, --robustness=STRATEGY the robustness strategy to use ("
+                                        STRATEGY_NAME_NONE " or "
+                                        STRATEGY_NAME_LOSE ")\n");
+    printf("  -v, --version             print version information\n");
+    printf("      --red-bits=N          the number of red bits to request\n");
+    printf("      --green-bits=N        the number of green bits to request\n");
+    printf("      --blue-bits=N         the number of blue bits to request\n");
+    printf("      --alpha-bits=N        the number of alpha bits to request\n");
+    printf("      --depth-bits=N        the number of depth bits to request\n");
+    printf("      --stencil-bits=N      the number of stencil bits to request\n");
+    printf("      --accum-red-bits=N    the number of red bits to request\n");
+    printf("      --accum-green-bits=N  the number of green bits to request\n");
+    printf("      --accum-blue-bits=N   the number of blue bits to request\n");
+    printf("      --accum-alpha-bits=N  the number of alpha bits to request\n");
+    printf("      --aux-buffers=N       the number of aux buffers to request\n");
+    printf("      --samples=N           the number of MSAA samples to request\n");
+    printf("      --stereo              request stereo rendering\n");
+    printf("      --srgb                request an sRGB capable framebuffer\n");
+    printf("      --singlebuffer        request single-buffering\n");
+    printf("      --no-error            request a context that does not emit errors\n");
+    printf("      --graphics-switching  request macOS graphics switching\n");
+}
+
+static void error_callback(int error, const char* description)
+{
+    fprintf(stderr, "Error: %s\n", description);
+}
+
+static const char* get_device_type_name(VkPhysicalDeviceType type)
+{
+    if (type == VK_PHYSICAL_DEVICE_TYPE_OTHER)
+        return "other";
+    else if (type == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU)
+        return "integrated GPU";
+    else if (type == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
+        return "discrete GPU";
+    else if (type == VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU)
+        return "virtual GPU";
+    else if (type == VK_PHYSICAL_DEVICE_TYPE_CPU)
+        return "CPU";
+
+    return "unknown";
+}
+
+static const char* get_api_name(int api)
+{
+    if (api == GLFW_OPENGL_API)
+        return "OpenGL";
+    else if (api == GLFW_OPENGL_ES_API)
+        return "OpenGL ES";
+
+    return "Unknown API";
+}
+
+static const char* get_profile_name_gl(GLint mask)
+{
+    if (mask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT)
+        return PROFILE_NAME_COMPAT;
+    if (mask & GL_CONTEXT_CORE_PROFILE_BIT)
+        return PROFILE_NAME_CORE;
+
+    return "unknown";
+}
+
+static const char* get_profile_name_glfw(int profile)
+{
+    if (profile == GLFW_OPENGL_COMPAT_PROFILE)
+        return PROFILE_NAME_COMPAT;
+    if (profile == GLFW_OPENGL_CORE_PROFILE)
+        return PROFILE_NAME_CORE;
+
+    return "unknown";
+}
+
+static const char* get_strategy_name_gl(GLint strategy)
+{
+    if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
+        return STRATEGY_NAME_LOSE;
+    if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
+        return STRATEGY_NAME_NONE;
+
+    return "unknown";
+}
+
+static const char* get_strategy_name_glfw(int strategy)
+{
+    if (strategy == GLFW_LOSE_CONTEXT_ON_RESET)
+        return STRATEGY_NAME_LOSE;
+    if (strategy == GLFW_NO_RESET_NOTIFICATION)
+        return STRATEGY_NAME_NONE;
+
+    return "unknown";
+}
+
+static void list_context_extensions(int client, int major, int minor)
+{
+    int i;
+    GLint count;
+    const GLubyte* extensions;
+
+    printf("%s context extensions:\n", get_api_name(client));
+
+    if (client == GLFW_OPENGL_API && major > 2)
+    {
+        glGetIntegerv(GL_NUM_EXTENSIONS, &count);
+
+        for (i = 0;  i < count;  i++)
+            printf(" %s\n", (const char*) glGetStringi(GL_EXTENSIONS, i));
+    }
+    else
+    {
+        extensions = glGetString(GL_EXTENSIONS);
+        while (*extensions != '\0')
+        {
+            putchar(' ');
+
+            while (*extensions != '\0' && *extensions != ' ')
+            {
+                putchar(*extensions);
+                extensions++;
+            }
+
+            while (*extensions == ' ')
+                extensions++;
+
+            putchar('\n');
+        }
+    }
+}
+
+static void list_vulkan_instance_layers(void)
+{
+    uint32_t i, lp_count = 0;
+    VkLayerProperties* lp;
+
+    printf("Vulkan instance layers:\n");
+
+    if (vkEnumerateInstanceLayerProperties(&lp_count, NULL) != VK_SUCCESS)
+        return;
+
+    lp = calloc(lp_count, sizeof(VkLayerProperties));
+
+    if (vkEnumerateInstanceLayerProperties(&lp_count, lp) != VK_SUCCESS)
+    {
+        free(lp);
+        return;
+    }
+
+    for (i = 0;  i < lp_count;  i++)
+    {
+        printf(" %s (v%u) \"%s\"\n",
+               lp[i].layerName,
+               lp[i].specVersion >> 22,
+               lp[i].description);
+    }
+
+    free(lp);
+}
+
+static void list_vulkan_device_layers(VkInstance instance, VkPhysicalDevice device)
+{
+    uint32_t i, lp_count;
+    VkLayerProperties* lp;
+
+    printf("Vulkan device layers:\n");
+
+    if (vkEnumerateDeviceLayerProperties(device, &lp_count, NULL) != VK_SUCCESS)
+        return;
+
+    lp = calloc(lp_count, sizeof(VkLayerProperties));
+
+    if (vkEnumerateDeviceLayerProperties(device, &lp_count, lp) != VK_SUCCESS)
+    {
+        free(lp);
+        return;
+    }
+
+    for (i = 0;  i < lp_count;  i++)
+    {
+        printf(" %s (v%u) \"%s\"\n",
+               lp[i].layerName,
+               lp[i].specVersion >> 22,
+               lp[i].description);
+    }
+
+    free(lp);
+}
+
+static int valid_version(void)
+{
+    int major, minor, revision;
+    glfwGetVersion(&major, &minor, &revision);
+
+    if (major != GLFW_VERSION_MAJOR)
+    {
+        printf("*** ERROR: GLFW major version mismatch! ***\n");
+        return GLFW_FALSE;
+    }
+
+    if (minor != GLFW_VERSION_MINOR || revision != GLFW_VERSION_REVISION)
+        printf("*** WARNING: GLFW version mismatch! ***\n");
+
+    return GLFW_TRUE;
+}
+
+static void print_version(void)
+{
+    int major, minor, revision;
+    glfwGetVersion(&major, &minor, &revision);
+
+    printf("GLFW header version: %u.%u.%u\n",
+           GLFW_VERSION_MAJOR,
+           GLFW_VERSION_MINOR,
+           GLFW_VERSION_REVISION);
+    printf("GLFW library version: %u.%u.%u\n", major, minor, revision);
+    printf("GLFW library version string: \"%s\"\n", glfwGetVersionString());
+}
+
+int main(int argc, char** argv)
+{
+    int ch, client, major, minor, revision, profile;
+    GLint redbits, greenbits, bluebits, alphabits, depthbits, stencilbits;
+    int list_extensions = GLFW_FALSE, list_layers = GLFW_FALSE;
+    GLenum error;
+    GLFWwindow* window;
+
+    enum { CLIENT, CONTEXT, BEHAVIOR, DEBUG_CONTEXT, FORWARD, HELP,
+           EXTENSIONS, LAYERS,
+           MAJOR, MINOR, PROFILE, ROBUSTNESS, VERSION,
+           REDBITS, GREENBITS, BLUEBITS, ALPHABITS, DEPTHBITS, STENCILBITS,
+           ACCUMREDBITS, ACCUMGREENBITS, ACCUMBLUEBITS, ACCUMALPHABITS,
+           AUXBUFFERS, SAMPLES, STEREO, SRGB, SINGLEBUFFER, NOERROR_SRSLY,
+           GRAPHICS_SWITCHING };
+    const struct option options[] =
+    {
+        { "behavior",           1, NULL, BEHAVIOR },
+        { "client-api",         1, NULL, CLIENT },
+        { "context-api",        1, NULL, CONTEXT },
+        { "debug",              0, NULL, DEBUG_CONTEXT },
+        { "forward",            0, NULL, FORWARD },
+        { "help",               0, NULL, HELP },
+        { "list-extensions",    0, NULL, EXTENSIONS },
+        { "list-layers",        0, NULL, LAYERS },
+        { "major",              1, NULL, MAJOR },
+        { "minor",              1, NULL, MINOR },
+        { "profile",            1, NULL, PROFILE },
+        { "robustness",         1, NULL, ROBUSTNESS },
+        { "version",            0, NULL, VERSION },
+        { "red-bits",           1, NULL, REDBITS },
+        { "green-bits",         1, NULL, GREENBITS },
+        { "blue-bits",          1, NULL, BLUEBITS },
+        { "alpha-bits",         1, NULL, ALPHABITS },
+        { "depth-bits",         1, NULL, DEPTHBITS },
+        { "stencil-bits",       1, NULL, STENCILBITS },
+        { "accum-red-bits",     1, NULL, ACCUMREDBITS },
+        { "accum-green-bits",   1, NULL, ACCUMGREENBITS },
+        { "accum-blue-bits",    1, NULL, ACCUMBLUEBITS },
+        { "accum-alpha-bits",   1, NULL, ACCUMALPHABITS },
+        { "aux-buffers",        1, NULL, AUXBUFFERS },
+        { "samples",            1, NULL, SAMPLES },
+        { "stereo",             0, NULL, STEREO },
+        { "srgb",               0, NULL, SRGB },
+        { "singlebuffer",       0, NULL, SINGLEBUFFER },
+        { "no-error",           0, NULL, NOERROR_SRSLY },
+        { "graphics-switching", 0, NULL, GRAPHICS_SWITCHING },
+        { NULL, 0, NULL, 0 }
+    };
+
+    // Initialize GLFW and create window
+
+    if (!valid_version())
+        exit(EXIT_FAILURE);
+
+    glfwSetErrorCallback(error_callback);
+
+    glfwInitHint(GLFW_COCOA_MENUBAR, GLFW_FALSE);
+
+    if (!glfwInit())
+        exit(EXIT_FAILURE);
+
+    while ((ch = getopt_long(argc, argv, "a:b:c:dfhlm:n:p:s:v", options, NULL)) != -1)
+    {
+        switch (ch)
+        {
+            case 'a':
+            case CLIENT:
+                if (strcasecmp(optarg, API_NAME_OPENGL) == 0)
+                    glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_API);
+                else if (strcasecmp(optarg, API_NAME_OPENGL_ES) == 0)
+                    glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+                else
+                {
+                    usage();
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 'b':
+            case BEHAVIOR:
+                if (strcasecmp(optarg, BEHAVIOR_NAME_NONE) == 0)
+                {
+                    glfwWindowHint(GLFW_CONTEXT_RELEASE_BEHAVIOR,
+                                   GLFW_RELEASE_BEHAVIOR_NONE);
+                }
+                else if (strcasecmp(optarg, BEHAVIOR_NAME_FLUSH) == 0)
+                {
+                    glfwWindowHint(GLFW_CONTEXT_RELEASE_BEHAVIOR,
+                                   GLFW_RELEASE_BEHAVIOR_FLUSH);
+                }
+                else
+                {
+                    usage();
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 'c':
+            case CONTEXT:
+                if (strcasecmp(optarg, API_NAME_NATIVE) == 0)
+                    glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_NATIVE_CONTEXT_API);
+                else if (strcasecmp(optarg, API_NAME_EGL) == 0)
+                    glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_EGL_CONTEXT_API);
+                else if (strcasecmp(optarg, API_NAME_OSMESA) == 0)
+                    glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_OSMESA_CONTEXT_API);
+                else
+                {
+                    usage();
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 'd':
+            case DEBUG_CONTEXT:
+                glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
+                break;
+            case 'f':
+            case FORWARD:
+                glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
+                break;
+            case 'h':
+            case HELP:
+                usage();
+                exit(EXIT_SUCCESS);
+            case 'l':
+            case EXTENSIONS:
+                list_extensions = GLFW_TRUE;
+                break;
+            case LAYERS:
+                list_layers = GLFW_TRUE;
+                break;
+            case 'm':
+            case MAJOR:
+                glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, atoi(optarg));
+                break;
+            case 'n':
+            case MINOR:
+                glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, atoi(optarg));
+                break;
+            case 'p':
+            case PROFILE:
+                if (strcasecmp(optarg, PROFILE_NAME_CORE) == 0)
+                {
+                    glfwWindowHint(GLFW_OPENGL_PROFILE,
+                                   GLFW_OPENGL_CORE_PROFILE);
+                }
+                else if (strcasecmp(optarg, PROFILE_NAME_COMPAT) == 0)
+                {
+                    glfwWindowHint(GLFW_OPENGL_PROFILE,
+                                   GLFW_OPENGL_COMPAT_PROFILE);
+                }
+                else
+                {
+                    usage();
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 's':
+            case ROBUSTNESS:
+                if (strcasecmp(optarg, STRATEGY_NAME_NONE) == 0)
+                {
+                    glfwWindowHint(GLFW_CONTEXT_ROBUSTNESS,
+                                   GLFW_NO_RESET_NOTIFICATION);
+                }
+                else if (strcasecmp(optarg, STRATEGY_NAME_LOSE) == 0)
+                {
+                    glfwWindowHint(GLFW_CONTEXT_ROBUSTNESS,
+                                   GLFW_LOSE_CONTEXT_ON_RESET);
+                }
+                else
+                {
+                    usage();
+                    exit(EXIT_FAILURE);
+                }
+                break;
+            case 'v':
+            case VERSION:
+                print_version();
+                exit(EXIT_SUCCESS);
+            case REDBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_RED_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_RED_BITS, atoi(optarg));
+                break;
+            case GREENBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_GREEN_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_GREEN_BITS, atoi(optarg));
+                break;
+            case BLUEBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_BLUE_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_BLUE_BITS, atoi(optarg));
+                break;
+            case ALPHABITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_ALPHA_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_ALPHA_BITS, atoi(optarg));
+                break;
+            case DEPTHBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_DEPTH_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_DEPTH_BITS, atoi(optarg));
+                break;
+            case STENCILBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_STENCIL_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_STENCIL_BITS, atoi(optarg));
+                break;
+            case ACCUMREDBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_ACCUM_RED_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_ACCUM_RED_BITS, atoi(optarg));
+                break;
+            case ACCUMGREENBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_ACCUM_GREEN_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_ACCUM_GREEN_BITS, atoi(optarg));
+                break;
+            case ACCUMBLUEBITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_ACCUM_BLUE_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_ACCUM_BLUE_BITS, atoi(optarg));
+                break;
+            case ACCUMALPHABITS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_ACCUM_ALPHA_BITS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_ACCUM_ALPHA_BITS, atoi(optarg));
+                break;
+            case AUXBUFFERS:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_AUX_BUFFERS, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_AUX_BUFFERS, atoi(optarg));
+                break;
+            case SAMPLES:
+                if (strcmp(optarg, "-") == 0)
+                    glfwWindowHint(GLFW_SAMPLES, GLFW_DONT_CARE);
+                else
+                    glfwWindowHint(GLFW_SAMPLES, atoi(optarg));
+                break;
+            case STEREO:
+                glfwWindowHint(GLFW_STEREO, GLFW_TRUE);
+                break;
+            case SRGB:
+                glfwWindowHint(GLFW_SRGB_CAPABLE, GLFW_TRUE);
+                break;
+            case SINGLEBUFFER:
+                glfwWindowHint(GLFW_DOUBLEBUFFER, GLFW_FALSE);
+                break;
+            case NOERROR_SRSLY:
+                glfwWindowHint(GLFW_CONTEXT_NO_ERROR, GLFW_TRUE);
+                break;
+            case GRAPHICS_SWITCHING:
+                glfwWindowHint(GLFW_COCOA_GRAPHICS_SWITCHING, GLFW_TRUE);
+                break;
+            default:
+                usage();
+                exit(EXIT_FAILURE);
+        }
+    }
+
+    print_version();
+
+    glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
+
+    window = glfwCreateWindow(200, 200, "Version", NULL, NULL);
+    if (!window)
+    {
+        glfwTerminate();
+        exit(EXIT_FAILURE);
+    }
+
+    glfwMakeContextCurrent(window);
+    gladLoadGL(glfwGetProcAddress);
+
+    error = glGetError();
+    if (error != GL_NO_ERROR)
+        printf("*** OpenGL error after make current: 0x%08x ***\n", error);
+
+    // Report client API version
+
+    client = glfwGetWindowAttrib(window, GLFW_CLIENT_API);
+    major = glfwGetWindowAttrib(window, GLFW_CONTEXT_VERSION_MAJOR);
+    minor = glfwGetWindowAttrib(window, GLFW_CONTEXT_VERSION_MINOR);
+    revision = glfwGetWindowAttrib(window, GLFW_CONTEXT_REVISION);
+    profile = glfwGetWindowAttrib(window, GLFW_OPENGL_PROFILE);
+
+    printf("%s context version string: \"%s\"\n",
+           get_api_name(client),
+           glGetString(GL_VERSION));
+
+    printf("%s context version parsed by GLFW: %u.%u.%u\n",
+           get_api_name(client),
+           major, minor, revision);
+
+    // Report client API context properties
+
+    if (client == GLFW_OPENGL_API)
+    {
+        if (major >= 3)
+        {
+            GLint flags;
+
+            glGetIntegerv(GL_CONTEXT_FLAGS, &flags);
+            printf("%s context flags (0x%08x):", get_api_name(client), flags);
+
+            if (flags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT)
+                printf(" forward-compatible");
+            if (flags & 2/*GL_CONTEXT_FLAG_DEBUG_BIT*/)
+                printf(" debug");
+            if (flags & GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB)
+                printf(" robustness");
+            if (flags & 8/*GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR*/)
+                printf(" no-error");
+            putchar('\n');
+
+            printf("%s context flags parsed by GLFW:", get_api_name(client));
+
+            if (glfwGetWindowAttrib(window, GLFW_OPENGL_FORWARD_COMPAT))
+                printf(" forward-compatible");
+            if (glfwGetWindowAttrib(window, GLFW_OPENGL_DEBUG_CONTEXT))
+                printf(" debug");
+            if (glfwGetWindowAttrib(window, GLFW_CONTEXT_ROBUSTNESS) == GLFW_LOSE_CONTEXT_ON_RESET)
+                printf(" robustness");
+            if (glfwGetWindowAttrib(window, GLFW_CONTEXT_NO_ERROR))
+                printf(" no-error");
+            putchar('\n');
+        }
+
+        if (major >= 4 || (major == 3 && minor >= 2))
+        {
+            GLint mask;
+            glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
+
+            printf("%s profile mask (0x%08x): %s\n",
+                   get_api_name(client),
+                   mask,
+                   get_profile_name_gl(mask));
+
+            printf("%s profile mask parsed by GLFW: %s\n",
+                   get_api_name(client),
+                   get_profile_name_glfw(profile));
+        }
+
+        if (GLAD_GL_ARB_robustness)
+        {
+            const int robustness = glfwGetWindowAttrib(window, GLFW_CONTEXT_ROBUSTNESS);
+            GLint strategy;
+            glGetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB, &strategy);
+
+            printf("%s robustness strategy (0x%08x): %s\n",
+                   get_api_name(client),
+                   strategy,
+                   get_strategy_name_gl(strategy));
+
+            printf("%s robustness strategy parsed by GLFW: %s\n",
+                   get_api_name(client),
+                   get_strategy_name_glfw(robustness));
+        }
+    }
+
+    printf("%s context renderer string: \"%s\"\n",
+           get_api_name(client),
+           glGetString(GL_RENDERER));
+    printf("%s context vendor string: \"%s\"\n",
+           get_api_name(client),
+           glGetString(GL_VENDOR));
+
+    if (major >= 2)
+    {
+        printf("%s context shading language version: \"%s\"\n",
+               get_api_name(client),
+               glGetString(GL_SHADING_LANGUAGE_VERSION));
+    }
+
+    printf("%s framebuffer:\n", get_api_name(client));
+
+    if (client == GLFW_OPENGL_API && profile == GLFW_OPENGL_CORE_PROFILE)
+    {
+        glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
+                                              GL_BACK_LEFT,
+                                              GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE,
+                                              &redbits);
+        glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
+                                              GL_BACK_LEFT,
+                                              GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE,
+                                              &greenbits);
+        glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
+                                              GL_BACK_LEFT,
+                                              GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE,
+                                              &bluebits);
+        glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
+                                              GL_BACK_LEFT,
+                                              GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE,
+                                              &alphabits);
+        glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
+                                              GL_DEPTH,
+                                              GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE,
+                                              &depthbits);
+        glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER,
+                                              GL_STENCIL,
+                                              GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE,
+                                              &stencilbits);
+    }
+    else
+    {
+        glGetIntegerv(GL_RED_BITS, &redbits);
+        glGetIntegerv(GL_GREEN_BITS, &greenbits);
+        glGetIntegerv(GL_BLUE_BITS, &bluebits);
+        glGetIntegerv(GL_ALPHA_BITS, &alphabits);
+        glGetIntegerv(GL_DEPTH_BITS, &depthbits);
+        glGetIntegerv(GL_STENCIL_BITS, &stencilbits);
+    }
+
+    printf(" red: %u green: %u blue: %u alpha: %u depth: %u stencil: %u\n",
+           redbits, greenbits, bluebits, alphabits, depthbits, stencilbits);
+
+    if (client == GLFW_OPENGL_ES_API ||
+        GLAD_GL_ARB_multisample ||
+        major > 1 || minor >= 3)
+    {
+        GLint samples, samplebuffers;
+        glGetIntegerv(GL_SAMPLES, &samples);
+        glGetIntegerv(GL_SAMPLE_BUFFERS, &samplebuffers);
+
+        printf(" samples: %u sample buffers: %u\n", samples, samplebuffers);
+    }
+
+    if (client == GLFW_OPENGL_API && profile != GLFW_OPENGL_CORE_PROFILE)
+    {
+        GLint accumredbits, accumgreenbits, accumbluebits, accumalphabits;
+        GLint auxbuffers;
+
+        glGetIntegerv(GL_ACCUM_RED_BITS, &accumredbits);
+        glGetIntegerv(GL_ACCUM_GREEN_BITS, &accumgreenbits);
+        glGetIntegerv(GL_ACCUM_BLUE_BITS, &accumbluebits);
+        glGetIntegerv(GL_ACCUM_ALPHA_BITS, &accumalphabits);
+        glGetIntegerv(GL_AUX_BUFFERS, &auxbuffers);
+
+        printf(" accum red: %u accum green: %u accum blue: %u accum alpha: %u aux buffers: %u\n",
+               accumredbits, accumgreenbits, accumbluebits, accumalphabits, auxbuffers);
+    }
+
+    if (list_extensions)
+        list_context_extensions(client, major, minor);
+
+    printf("Vulkan loader: %s\n",
+           glfwVulkanSupported() ? "available" : "missing");
+
+    if (glfwVulkanSupported())
+    {
+        uint32_t loader_version = VK_API_VERSION_1_0;
+        int portability_enumeration = GLFW_FALSE;
+        uint32_t i, j, glfw_re_count, re_count, pd_count, ep_count;
+        const char** glfw_re;
+        const char** re;
+        VkApplicationInfo ai = {0};
+        VkInstanceCreateInfo ici = {0};
+        VkInstance instance;
+        VkPhysicalDevice* pd;
+
+        gladLoadVulkanUserPtr(NULL, (GLADuserptrloadfunc) glfwGetInstanceProcAddress, NULL);
+
+        if (vkEnumerateInstanceVersion)
+        {
+            uint32_t version;
+            if (vkEnumerateInstanceVersion(&version) == VK_SUCCESS)
+                loader_version = version;
+        }
+
+        printf("Vulkan loader API version: %i.%i\n",
+               VK_VERSION_MAJOR(loader_version),
+               VK_VERSION_MINOR(loader_version));
+
+        glfw_re = glfwGetRequiredInstanceExtensions(&glfw_re_count);
+
+        re_count = glfw_re_count;
+        re = calloc(glfw_re_count, sizeof(char*));
+
+        printf("Vulkan window surface required instance extensions:\n");
+        if (glfw_re)
+        {
+            for (i = 0;  i < glfw_re_count;  i++)
+            {
+                printf(" %s\n", glfw_re[i]);
+                re[i] = glfw_re[i];
+            }
+        }
+        else
+            printf(" missing\n");
+
+        vkEnumerateInstanceExtensionProperties(NULL, &ep_count, NULL);
+        VkExtensionProperties* ep = calloc(ep_count, sizeof(VkExtensionProperties));
+        vkEnumerateInstanceExtensionProperties(NULL, &ep_count, ep);
+
+        if (list_extensions)
+        {
+            printf("Vulkan instance extensions:\n");
+
+            for (i = 0;  i < ep_count;  i++)
+                printf(" %s (spec version %u)\n", ep[i].extensionName, ep[i].specVersion);
+        }
+
+        for (i = 0;  i < ep_count;  i++)
+        {
+            if (strcmp(ep[i].extensionName, "VK_KHR_portability_enumeration") != 0)
+                continue;
+
+            re_count++;
+            re = realloc((void*) re, sizeof(char*) * re_count);
+            re[re_count - 1] = "VK_KHR_portability_enumeration";
+            portability_enumeration = GLFW_TRUE;
+        }
+
+        free(ep);
+
+        if (list_layers)
+            list_vulkan_instance_layers();
+
+        ai.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
+        ai.pApplicationName = "glfwinfo";
+        ai.applicationVersion = VK_MAKE_VERSION(GLFW_VERSION_MAJOR,
+                                                GLFW_VERSION_MINOR,
+                                                GLFW_VERSION_REVISION);
+
+        if (loader_version >= VK_API_VERSION_1_1)
+            ai.apiVersion = VK_API_VERSION_1_1;
+        else
+            ai.apiVersion = VK_API_VERSION_1_0;
+
+        ici.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
+        ici.pApplicationInfo = &ai;
+        ici.enabledExtensionCount = re_count;
+        ici.ppEnabledExtensionNames = re;
+
+        if (portability_enumeration)
+            ici.flags |= VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR;
+
+        if (vkCreateInstance(&ici, NULL, &instance) != VK_SUCCESS)
+        {
+            glfwTerminate();
+            exit(EXIT_FAILURE);
+        }
+
+        free((void*) re);
+
+        gladLoadVulkanUserPtr(NULL, (GLADuserptrloadfunc) glfwGetInstanceProcAddress, instance);
+
+        vkEnumeratePhysicalDevices(instance, &pd_count, NULL);
+        pd = calloc(pd_count, sizeof(VkPhysicalDevice));
+        vkEnumeratePhysicalDevices(instance, &pd_count, pd);
+
+        for (i = 0;  i < pd_count;  i++)
+        {
+            VkPhysicalDeviceProperties pdp;
+            uint32_t qfp_count, ep_count;
+
+            vkGetPhysicalDeviceProperties(pd[i], &pdp);
+
+            printf("Vulkan %s device: \"%s\" API version %i.%i\n",
+                   get_device_type_name(pdp.deviceType),
+                   pdp.deviceName,
+                   VK_VERSION_MAJOR(pdp.apiVersion),
+                   VK_VERSION_MINOR(pdp.apiVersion));
+
+            vkGetPhysicalDeviceQueueFamilyProperties(pd[i], &qfp_count, NULL);
+
+            vkEnumerateDeviceExtensionProperties(pd[i], NULL, &ep_count, NULL);
+            VkExtensionProperties* ep = calloc(ep_count, sizeof(VkExtensionProperties));
+            vkEnumerateDeviceExtensionProperties(pd[i], NULL, &ep_count, ep);
+
+            if (portability_enumeration)
+            {
+                int conformant = GLFW_TRUE;
+
+                for (j = 0; j < ep_count; j++)
+                {
+                    if (strcmp(ep[j].extensionName, "VK_KHR_portability_subset") == 0)
+                    {
+                        conformant = GLFW_FALSE;
+                        break;
+                    }
+                }
+
+                printf("Vulkan %s %s device: \"%s\" (API version %i.%i)\n",
+                       conformant ? "conformant" : "non-conformant",
+                       get_device_type_name(pdp.deviceType),
+                       pdp.deviceName,
+                       VK_VERSION_MAJOR(pdp.apiVersion),
+                       VK_VERSION_MINOR(pdp.apiVersion));
+            }
+            else
+            {
+                printf("Vulkan %s device: \"%s\" (API version %i.%i)\n",
+                       get_device_type_name(pdp.deviceType),
+                       pdp.deviceName,
+                       VK_VERSION_MAJOR(pdp.apiVersion),
+                       VK_VERSION_MINOR(pdp.apiVersion));
+            }
+
+            if (glfw_re_count)
+            {
+                printf("Vulkan device queue family presentation support:\n");
+                for (j = 0;  j < qfp_count;  j++)
+                {
+                    printf(" %u: ", j);
+                    if (glfwGetPhysicalDevicePresentationSupport(instance, pd[i], j))
+                        printf("supported\n");
+                    else
+                        printf("no\n");
+                }
+            }
+
+            if (list_extensions)
+            {
+                printf("Vulkan device extensions:\n");
+                for (j = 0;  j < ep_count;  j++)
+                    printf(" %s (spec version %u)\n", ep[j].extensionName, ep[j].specVersion);
+            }
+
+            free(ep);
+
+            if (list_layers)
+                list_vulkan_device_layers(instance, pd[i]);
+        }
+
+        free(pd);
+        vkDestroyInstance(instance, NULL);
+    }
+
+    glfwTerminate();
+    exit(EXIT_SUCCESS);
+}
+