From f3e19b743c64d0bfa9da9f7e706de1a80eb76d38 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Sun, 17 Dec 2017 20:32:44 +1100
Subject: [PATCH] [client] added ability to pass options to renderers

---
 client/lg-renderer.h | 10 ++++++----
 client/main.c        | 20 +++++++++++++++++++-
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/client/lg-renderer.h b/client/lg-renderer.h
index d139ffeb..b39e296e 100644
--- a/client/lg-renderer.h
+++ b/client/lg-renderer.h
@@ -38,10 +38,12 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 
 typedef struct LG_RendererParams
 {
-  TTF_Font * font;
-  bool       showFPS;
-  bool       resample;
-  bool       vsync;
+  int           argc;
+  const char ** argv;
+  TTF_Font *    font;
+  bool          showFPS;
+  bool          resample;
+  bool          vsync;
 }
 LG_RendererParams;
 
diff --git a/client/main.c b/client/main.c
index 5851d3f3..30389901 100644
--- a/client/main.c
+++ b/client/main.c
@@ -83,6 +83,10 @@ struct AppParams
   bool         scaleMouseInput;
   bool         hideMouse;
   bool         ignoreQuit;
+
+  unsigned int  rendererOptSize;
+  unsigned int  rendererOptCount;
+  const char ** rendererOpts;
 };
 
 struct AppState  state;
@@ -716,6 +720,8 @@ int run()
   }
 
   LG_RendererParams lgrParams;
+  lgrParams.argc     = params.rendererOptCount;
+  lgrParams.argv     = params.rendererOpts;
   lgrParams.font     = state.font;
   lgrParams.resample = params.useMipmap;
   lgrParams.showFPS  = params.showFPS;
@@ -936,6 +942,7 @@ void doHelp(char * app)
     "  -m        Disable mipmapping\n"
     "  -v        Disable VSYNC\n"
     "  -k        Enable FPS display\n"
+    "  -o FLAG   Specify a renderer flag\n"
     "\n"
     "  -a        Auto resize the window to the guest\n"
     "  -n        Don't allow the window to be manually resized\n"
@@ -989,7 +996,7 @@ void doLicense()
 int main(int argc, char * argv[])
 {
   int c;
-  while((c = getopt(argc, argv, "hf:sc:p:jMmvkanrdFx:y:w:b:Ql")) != -1)
+  while((c = getopt(argc, argv, "hf:sc:p:jMmvko:anrdFx:y:w:b:Ql")) != -1)
     switch(c)
     {
       case '?':
@@ -1034,6 +1041,17 @@ int main(int argc, char * argv[])
         params.showFPS = true;
         break;
 
+      case 'o':
+        if (params.rendererOptCount == params.rendererOptSize)
+        {
+          params.rendererOptSize += 5;
+          params.rendererOpts     = realloc(
+            params.rendererOpts,
+            params.rendererOptSize * sizeof(char *));
+        }
+        params.rendererOpts[params.rendererOptCount++] = optarg;
+        break;
+
       case 'a':
         params.autoResize = true;
         break;