play: add flags to play_startup()

Introduce flags for disabling audio/video/gamecontroller caps

Most of the time, all of these will be desirable for a game.  But
sometimes I might use this as a quick bootstrap into SDL land,
especially as I accumulate play_ops_t boilerplate I'd like to
be maximally reusable.  The video-only use case is particularly
likely especially for development tools, and I'm likely to have
a corpus of play_ops_t integrations for the myriad GL/vulkan
flavors...

Note the flags are plumbed down to the play_ops_t.init hook so
ops implementations can also be flags-aware.

I didn't try make things like audio samplerate/channels
configurable, as this library is intended to be a vendored .a
anyways there's no hard ABI/API commitments.  It can always
grow and evolve when the need arises.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/play.h b/src/play.h
index 0f1d2da..73d3815 100644
--- a/src/play.h
+++ b/src/play.h
@@ -33,6 +33,10 @@ typedef enum play_ticks_t {
 	PLAY_TICKS_CNT
 } play_ticks_t;
 
+#define PLAY_FLAG_NOAUDIO		(1L)
+#define PLAY_FLAG_NOVIDEO		(1L << 1)
+#define PLAY_FLAG_NOGAMEPAD		(1L << 2)
+
 #define PLAY_MUSIC_FLAG_LOOP		(1L)
 #define PLAY_MUSIC_FLAG_FADEIN		(1L << 1)
 #define PLAY_MUSIC_FLAG_OPTIONAL	(1L << 2)
@@ -42,7 +46,7 @@ typedef enum play_ticks_t {
 typedef struct play_t play_t;
 
 typedef struct play_ops_t {
-	void *	(*init)(play_t *play, int argc, char *argv[]);
+	void *	(*init)(play_t *play, int argc, char *argv[], unsigned flags);
 	void	(*destroy)(play_t *play, void *context);
 	void	(*enter)(play_t *play, void *context);
 	void	(*leave)(play_t *play, void *context);
@@ -51,7 +55,7 @@ typedef struct play_ops_t {
 	void	(*dispatch)(play_t *play, void *context, SDL_Event *event);
 } play_ops_t;
 
-play_t * play_startup(int argc, char *argv[], const play_ops_t *ops[]);
+play_t * play_startup(int argc, char *argv[], unsigned flags, const play_ops_t *ops[]);
 int play_shutdown(play_t *play);
 void play_run(play_t *play);