Copy changes from the no-history fork, generated back in 2023

Original commit message:
> commit f138311d2d2e0cc9ba0496d523bb46f2c1c9fb73
> Author: rtk0c <[email protected]>
> Date:   Wed Sep 20 23:58:58 2023 -0700
>
>     Copy from the PlasticSCM repo, replace vendored glm wtih conan

In reality, this also introduced a few uncommitted changes in the
original PlasticSCM repo. See the modified and new files in this patch.

1 files changed, 0 insertions, 187 deletions

diff --git a/3rdparty/glfw/source/tests/gamma.c b/3rdparty/glfw/source/tests/gamma.c
deleted file mode 100644
index d1f6dc2..0000000
--- a/3rdparty/glfw/source/tests/gamma.c
+++ /dev/null
@@ -1,187 +0,0 @@
-//========================================================================
-// Gamma correction test program
-// 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 program is used to test the gamma correction functionality for
-// both full screen and windowed mode windows
-//
-//========================================================================
-
-#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
-#define NK_BUTTON_TRIGGER_ON_RELEASE
-#include <nuklear.h>
-
-#define NK_GLFW_GL2_IMPLEMENTATION
-#include <nuklear_glfw_gl2.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-static void error_callback(int error, const char* description)
-{
-    fprintf(stderr, "Error: %s\n", description);
-}
-
-static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
-{
-    if (action == GLFW_PRESS && key == GLFW_KEY_ESCAPE)
-        glfwSetWindowShouldClose(window, GLFW_TRUE);
-}
-
-static void chart_ramp_array(struct nk_context* nk,
-                             struct nk_color color,
-                             int count, unsigned short int* values)
-{
-    if (nk_chart_begin_colored(nk, NK_CHART_LINES,
-                               color, nk_rgb(255, 255, 255),
-                               count, 0, 65535))
-    {
-        int i;
-        for (i = 0;  i < count;  i++)
-        {
-            char buffer[1024];
-            if (nk_chart_push(nk, values[i]))
-            {
-                snprintf(buffer, sizeof(buffer), "#%u: %u (%0.5f) ",
-                         i, values[i], values[i] / 65535.f);
-                nk_tooltip(nk, buffer);
-            }
-        }
-
-        nk_chart_end(nk);
-    }
-}
-
-int main(int argc, char** argv)
-{
-    GLFWmonitor* monitor = NULL;
-    GLFWwindow* window;
-    GLFWgammaramp orig_ramp;
-    struct nk_context* nk;
-    struct nk_font_atlas* atlas;
-    float gamma_value = 1.f;
-
-    glfwSetErrorCallback(error_callback);
-
-    if (!glfwInit())
-        exit(EXIT_FAILURE);
-
-    monitor = glfwGetPrimaryMonitor();
-
-    glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_TRUE);
-    glfwWindowHint(GLFW_WIN32_KEYBOARD_MENU, GLFW_TRUE);
-
-    window = glfwCreateWindow(800, 400, "Gamma Test", NULL, NULL);
-    if (!window)
-    {
-        glfwTerminate();
-        exit(EXIT_FAILURE);
-    }
-
-    {
-        const GLFWgammaramp* ramp = glfwGetGammaRamp(monitor);
-        if (!ramp)
-        {
-            glfwTerminate();
-            exit(EXIT_FAILURE);
-        }
-
-        const size_t array_size = ramp->size * sizeof(short);
-        orig_ramp.size = ramp->size;
-        orig_ramp.red = malloc(array_size);
-        orig_ramp.green = malloc(array_size);
-        orig_ramp.blue = malloc(array_size);
-        memcpy(orig_ramp.red, ramp->red, array_size);
-        memcpy(orig_ramp.green, ramp->green, array_size);
-        memcpy(orig_ramp.blue, ramp->blue, array_size);
-    }
-
-    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();
-
-    glfwSetKeyCallback(window, key_callback);
-
-    while (!glfwWindowShouldClose(window))
-    {
-        int width, height;
-        struct nk_rect area;
-
-        glfwGetWindowSize(window, &width, &height);
-        area = nk_rect(0.f, 0.f, (float) width, (float) height);
-        nk_window_set_bounds(nk, "", area);
-
-        glClear(GL_COLOR_BUFFER_BIT);
-        nk_glfw3_new_frame();
-        if (nk_begin(nk, "", area, 0))
-        {
-            const GLFWgammaramp* ramp;
-
-            nk_layout_row_dynamic(nk, 30, 3);
-            if (nk_slider_float(nk, 0.1f, &gamma_value, 5.f, 0.1f))
-                glfwSetGamma(monitor, gamma_value);
-            nk_labelf(nk, NK_TEXT_LEFT, "%0.1f", gamma_value);
-            if (nk_button_label(nk, "Revert"))
-                glfwSetGammaRamp(monitor, &orig_ramp);
-
-            ramp = glfwGetGammaRamp(monitor);
-
-            nk_layout_row_dynamic(nk, height - 60.f, 3);
-            chart_ramp_array(nk, nk_rgb(255, 0, 0), ramp->size, ramp->red);
-            chart_ramp_array(nk, nk_rgb(0, 255, 0), ramp->size, ramp->green);
-            chart_ramp_array(nk, nk_rgb(0, 0, 255), ramp->size, ramp->blue);
-        }
-
-        nk_end(nk);
-        nk_glfw3_render(NK_ANTI_ALIASING_ON);
-
-        glfwSwapBuffers(window);
-        glfwWaitEventsTimeout(1.0);
-    }
-
-    free(orig_ramp.red);
-    free(orig_ramp.green);
-    free(orig_ramp.blue);
-
-    nk_glfw3_shutdown();
-    glfwTerminate();
-    exit(EXIT_SUCCESS);
-}
-