From 03eaddcad49eebb8f29e5f987a9ca6c8abba942d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Sun, 23 Jul 2017 19:25:16 -0400
Subject: [PATCH] Fixed compiler warnings on QNX.

---
 src/audio/qsa/SDL_qsa_audio.c | 66 +++--------------------------------
 src/video/qnx/gl.c            |  8 +++--
 src/video/qnx/sdl_qnx.h       |  2 +-
 3 files changed, 11 insertions(+), 65 deletions(-)

diff --git a/src/audio/qsa/SDL_qsa_audio.c b/src/audio/qsa/SDL_qsa_audio.c
index 9f202ba9c..9b203741a 100644
--- a/src/audio/qsa/SDL_qsa_audio.c
+++ b/src/audio/qsa/SDL_qsa_audio.c
@@ -56,24 +56,6 @@
 #define DEFAULT_CPARAMS_FRAGS_MIN 1
 #define DEFAULT_CPARAMS_FRAGS_MAX 1
 
-#define QSA_NO_WORKAROUNDS  0x00000000
-#define QSA_MMAP_WORKAROUND 0x00000001
-
-struct BuggyCards
-{
-    char *cardname;
-    unsigned long bugtype;
-};
-
-#define QSA_WA_CARDS             3
-#define QSA_MAX_CARD_NAME_LENGTH 33
-
-struct BuggyCards buggycards[QSA_WA_CARDS] = {
-    {"Sound Blaster Live!", QSA_MMAP_WORKAROUND},
-    {"Vortex 8820", QSA_MMAP_WORKAROUND},
-    {"Vortex 8830", QSA_MMAP_WORKAROUND},
-};
-
 /* List of found devices */
 #define QSA_MAX_DEVICES       32
 #define QSA_MAX_NAME_LENGTH   81+16     /* Hardcoded in QSA, can't be changed */
@@ -97,40 +79,16 @@ QSA_SetError(const char *fn, int status)
     return SDL_SetError("QSA: %s() failed: %s", fn, snd_strerror(status));
 }
 
-/* card names check to apply the workarounds */
-static int
-QSA_CheckBuggyCards(_THIS, unsigned long checkfor)
-{
-    char scardname[QSA_MAX_CARD_NAME_LENGTH];
-    int it;
-
-    if (snd_card_get_name
-        (this->hidden->cardno, scardname, QSA_MAX_CARD_NAME_LENGTH - 1) < 0) {
-        return 0;
-    }
-
-    for (it = 0; it < QSA_WA_CARDS; it++) {
-        if (SDL_strcmp(buggycards[it].cardname, scardname) == 0) {
-            if (buggycards[it].bugtype == checkfor) {
-                return 1;
-            }
-        }
-    }
-
-    return 0;
-}
-
 /* !!! FIXME: does this need to be here? Does the SDL version not work? */
 static void
 QSA_ThreadInit(_THIS)
 {
-    struct sched_param param;
-    int status;
-
     /* Increase default 10 priority to 25 to avoid jerky sound */
-    status = SchedGet(0, 0, &param);
-    param.sched_priority = param.sched_curpriority + 15;
-    status = SchedSet(0, 0, SCHED_NOCHANGE, &param);
+    struct sched_param param;
+    if (SchedGet(0, 0, &param) != -1) {
+        param.sched_priority = param.sched_curpriority + 15;
+        SchedSet(0, 0, SCHED_NOCHANGE, &param);
+    }
 }
 
 /* PCM channel parameters initialize function */
@@ -385,18 +343,6 @@ QSA_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
         return QSA_SetError("snd_pcm_open", status);
     }
 
-#if 0
-    if (!QSA_CheckBuggyCards(this, QSA_MMAP_WORKAROUND)) {
-        /* Disable QSA MMAP plugin for buggy audio drivers */
-        status =
-            snd_pcm_plugin_set_disable(this->hidden->audio_handle,
-                                       PLUGIN_DISABLE_MMAP);
-        if (status < 0) {
-            return QSA_SetError("snd_pcm_plugin_set_disable", status);
-        }
-    }
-#endif
-
     /* Try for a closest match on audio format */
     format = 0;
     /* can't use format as SND_PCM_SFMT_U8 = 0 in qsa */
@@ -723,8 +669,6 @@ QSA_Deinitialize(void)
 static int
 QSA_Init(SDL_AudioDriverImpl * impl)
 {
-    snd_pcm_t *handle = NULL;
-
     /* Clear devices array */
     SDL_zero(qsa_playback_device);
     SDL_zero(qsa_capture_device);
diff --git a/src/video/qnx/gl.c b/src/video/qnx/gl.c
index 28f05f2d1..19e1bd4f7 100644
--- a/src/video/qnx/gl.c
+++ b/src/video/qnx/gl.c
@@ -227,13 +227,15 @@ glSetSwapInterval(_THIS, int interval)
 /**
  * Swaps the EGL buffers associated with the given window
  * @param   _THIS
- * @paran   window  Window to swap buffers for
+ * @param   window  Window to swap buffers for
+ * @return  0 if successful, -1 on error
  */
-void
+int
 glSwapWindow(_THIS, SDL_Window *window)
 {
+    /* !!! FIXME: should we migrate this all over to use SDL_egl.c? */
     window_impl_t   *impl = (window_impl_t *)window->driverdata;
-    eglSwapBuffers(egl_disp, impl->surface);
+    return eglSwapBuffers(egl_disp, impl->surface) == EGL_TRUE ? 0 : -1;
 }
 
 /**
diff --git a/src/video/qnx/sdl_qnx.h b/src/video/qnx/sdl_qnx.h
index 70a2e4893..65e07988e 100644
--- a/src/video/qnx/sdl_qnx.h
+++ b/src/video/qnx/sdl_qnx.h
@@ -40,7 +40,7 @@ extern int glLoadLibrary(_THIS, const char *name);
 void *glGetProcAddress(_THIS, const char *proc);
 extern SDL_GLContext glCreateContext(_THIS, SDL_Window *window);
 extern int glSetSwapInterval(_THIS, int interval);
-extern void glSwapWindow(_THIS, SDL_Window *window);
+extern int glSwapWindow(_THIS, SDL_Window *window);
 extern int glMakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
 extern void glDeleteContext(_THIS, SDL_GLContext context);
 extern void glUnloadLibrary(_THIS);