feat(vulkan): vulkan 1.4 core with the user interface and the launcher, shaders split into ogl46/vk14 with SPIR-V binaries loaded first

gl/glsl_common.h

@@ -1,10 +1,22 @@
 #pragma once
 
+#include <array>
+#include <string>
+#include <vector>
+
 #include "ubo.h"
 #include "utilities/Globals.h"
 
 namespace gl
 {
+    // the constants of the game the shaders take (shaders/ogl46/common.glsl), as #define lines put before the sources
     extern std::string glsl_common;
     void glsl_common_setup();
+    // the settings of the game the shaders take (shaders/ogl46/settings.glsl): #define lines of their values for the sources,
+    // and the values of the specialization constants of the binaries, in the order of gl::shader_setting
+    std::string glsl_settings_defines();
+    std::array<GLuint, 6> glsl_settings_values();
+    // whether the constants written in common.glsl in Basedir (shaders/ogl46/ when empty) are those of the game: the SPIR-V
+    // binaries are compiled with the ones of the file. Differences: what isn't the same
+    bool glsl_common_matches(std::string const &Basedir, std::vector<std::string> &Differences);
 }