[client] windows: add native clang-cl build

Build the Windows client against the MSVC ABI while retaining clang
language support. Use vcpkg for ANGLE and libsamplerate, and build
MsQuic with its bundled static OpenSSL.

client/renderers/EGL/CMakeLists.txt

@@ -1,26 +1,23 @@
 cmake_minimum_required(VERSION 3.10)
 project(renderer_EGL LANGUAGES C CXX)
 
-find_program(AWK NAMES gawk mawk original-awk awk)
-
-if(AWK MATCHES ".+-NOTFOUND")
-  message(FATAL_ERROR "FATAL: some known version of awk couldn't be found (${AWK}).")
-else()
-  message(STATUS "Using awk: ${AWK}")
-endif()
-
 include(MakeObject)
 function(build_shaders header_dir)
   file(GLOB headers "${header_dir}/*.h")
   set(EGL_SHADER_PROCESSED)
+  set(include_dir "${CMAKE_CURRENT_SOURCE_DIR}/${header_dir}")
   foreach(shader ${ARGN})
     set(out_f "${CMAKE_CURRENT_BINARY_DIR}/${shader}")
-    add_custom_command(OUTPUT "${out_f}"
-      COMMAND "${AWK}" -f "${CMAKE_CURRENT_SOURCE_DIR}/glsl.include.awk"
-              "${CMAKE_CURRENT_SOURCE_DIR}/${shader}" > "${out_f}"
+    add_custom_command(
+      OUTPUT "${out_f}"
+      COMMAND "${CMAKE_COMMAND}"
+        "-DLG_MAKE_OBJECT_ACTION=PREPROCESS"
+        "-DLG_MAKE_OBJECT_INPUT=${CMAKE_CURRENT_SOURCE_DIR}/${shader}"
+        "-DLG_MAKE_OBJECT_OUTPUT=${out_f}"
+        "-DLG_MAKE_OBJECT_INCLUDE_DIR=${include_dir}"
+        -P "${LG_MAKE_OBJECT_SCRIPT}"
       MAIN_DEPENDENCY "${CMAKE_CURRENT_SOURCE_DIR}/${shader}"
-      DEPENDS ${headers}
-      WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/shader"
+      DEPENDS ${headers} "${LG_MAKE_OBJECT_SCRIPT}"
       COMMENT "Preprocessing shader ${shader}"
       VERBATIM
     )

client/renderers/EGL/filter_glsl.c

@@ -18,7 +18,6 @@
  * Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
-#define _GNU_SOURCE
 #include "filter.h"
 #include "effect.h"
 #include "app.h"
@@ -45,7 +44,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <strings.h>
 
 #define GLSL_MAX_TEXTURES 16
 #define GLSL_EXPR_STACK   128
@@ -633,11 +631,11 @@ static bool evaluateExpression(const GLSLContext * context,
   if (!copy)
     return false;
 
-  double stack[GLSL_EXPR_STACK];
+  double       stack[GLSL_EXPR_STACK];
   unsigned int count = 0;
-  char * state;
-  for (char * token = strtok_r(copy, " \t\r\n", &state); token;
-       token = strtok_r(NULL, " \t\r\n", &state))
+  char       * state = NULL;
+  for (char * token = lg_strtok_r(copy, " \t\r\n", &state); token;
+       token = lg_strtok_r(NULL, " \t\r\n", &state))
   {
     if (!strcmp(token, "!"))
     {
@@ -1077,7 +1075,7 @@ static bool createFilter(const char * root, const char * relative,
   if (!this->relative || !this->base.ops.name)
     goto fail;
   char * extension = strrchr((char *)this->base.ops.name, '.');
-  if (extension && !strcasecmp(extension, ".glsl"))
+  if (extension && !lg_strcasecmp(extension, ".glsl"))
     *extension = '\0';
   app_registerImGuiText(this->base.ops.name);
 
@@ -1118,7 +1116,7 @@ static void glslFree(EGL_Filter * filter)
 static bool hasGLSLExtension(const char * name)
 {
   const char * extension = strrchr(name, '.');
-  return extension && !strcasecmp(extension, ".glsl");
+  return extension && !lg_strcasecmp(extension, ".glsl");
 }
 
 static bool scanDirectory(const char * root, const char * relative,

client/renderers/EGL/glsl.include.awk

@@ -1,13 +0,0 @@
-BEGIN { FS="\"" }
-
-function process(line, second) {
-    if (line ~ /^#include[ \t]*".+"[ \t\r]*$/) {
-        while (getline < second) {
-            process($0, $2)
-        }
-    } else {
-        print line
-    }
-}
-
-{ process($0, $2) } END { print "\0"; }

client/renderers/EGL/postprocess.c

@@ -154,7 +154,7 @@ static void loadPresetList(struct EGL_PostProcess * this)
       continue;
 
     DEBUG_INFO("Found preset: %s", entry);
-    char * name = strdup(entry);
+    char * name = lg_strdup(entry);
     if (!name)
     {
       DEBUG_ERROR("Failed to allocate memory");
@@ -260,7 +260,7 @@ static void reorderFilters(struct EGL_PostProcess * this)
     return;
   }
 
-  char * orderStr = strdup(option_get_string("eglFilter", "order"));
+  char * orderStr = lg_strdup(option_get_string("eglFilter", "order"));
   if (!orderStr)
   {
     DEBUG_ERROR("Failed to allocate memory");
@@ -339,7 +339,8 @@ static void savePresetAs(struct EGL_PostProcess * this)
     }
   }
 
-  this->activePreset = stringlist_push(this->presets, strdup(this->presetEdit));
+  this->activePreset = stringlist_push(
+      this->presets, lg_strdup(this->presetEdit));
 }
 
 static void deletePreset(struct EGL_PostProcess * this)
@@ -396,7 +397,7 @@ static bool presetsUI(struct EGL_PostProcess * this)
     if (this->activePreset >= 0)
       savePreset(this, stringlist_at(this->presets, this->activePreset));
     else
-      presetError(this, strdup("You must select a preset to save."));
+      presetError(this, lg_strdup("You must select a preset to save."));
   }
 
   if (igIsItemHovered(ImGuiHoveredFlags_None) && this->activePreset >= 0)