26 files changed, 38 insertions, 38 deletions

diff --git a/src/main.c b/src/main.c
index 9174ec3..1f62e9d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -272,7 +272,7 @@ int main(int argc, const char *argv[])
 
 	gettimeofday(&rototiller.start_tv, NULL);
 	exit_if((r = til_module_create_context(
-						rototiller.module,
+						rototiller.module, 0,
 						get_ticks(&rototiller.start_tv,
 							&rototiller.start_tv,
 							rototiller.ticks_offset),
diff --git a/src/modules/blinds/blinds.c b/src/modules/blinds/blinds.c
index c4a94c9..8f32054 100644
--- a/src/modules/blinds/blinds.c
+++ b/src/modules/blinds/blinds.c
@@ -35,7 +35,7 @@ static blinds_setup_t blinds_default_setup = {
 };
 
 
-static void * blinds_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * blinds_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	blinds_context_t	*ctxt;
 
diff --git a/src/modules/checkers/checkers.c b/src/modules/checkers/checkers.c
index 27da42b..56037fa 100644
--- a/src/modules/checkers/checkers.c
+++ b/src/modules/checkers/checkers.c
@@ -61,7 +61,7 @@ static checkers_setup_t checkers_default_setup = {
 };
 
 
-static void * checkers_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * checkers_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	checkers_context_t	*ctxt;
 
diff --git a/src/modules/compose/compose.c b/src/modules/compose/compose.c
index a331b3f..b0f0104 100644
--- a/src/modules/compose/compose.c
+++ b/src/modules/compose/compose.c
@@ -46,7 +46,7 @@ typedef struct compose_setup_t {
 	char			*layers[];
 } compose_setup_t;
 
-static void * compose_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup);
+static void * compose_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup);
 static void compose_destroy_context(void *context);
 static void compose_prepare_frame(void *context, unsigned ticks, unsigned n_cpus, til_fb_fragment_t *fragment, til_fragmenter_t *res_fragmenter);
 static int compose_setup(const til_settings_t *settings, til_setting_t **res_setting, const til_setting_desc_t **res_desc, til_setup_t **res_setup);
@@ -66,7 +66,7 @@ til_module_t	compose_module = {
 };
 
 
-static void * compose_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * compose_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	compose_context_t	*ctxt;
 	size_t			n;
@@ -82,7 +82,7 @@ static void * compose_create_context(unsigned ticks, unsigned n_cpus, til_setup_
 
 	ctxt->n_cpus = n_cpus;
 
-	for (int i = 0; i < n; i++) {
+	for (size_t i = 0; i < n; i++) {
 		const til_module_t	*layer_module;
 		til_setup_t		*layer_setup = NULL;
 
@@ -90,19 +90,19 @@ static void * compose_create_context(unsigned ticks, unsigned n_cpus, til_setup_
 		(void) til_module_randomize_setup(layer_module, &layer_setup, NULL);
 
 		ctxt->layers[i].module = layer_module;
-		(void) til_module_create_context(layer_module, ticks, layer_setup, &ctxt->layers[i].module_ctxt);
+		(void) til_module_create_context(layer_module, rand(), ticks, layer_setup, &ctxt->layers[i].module_ctxt);
 		til_setup_free(layer_setup);
 
 		ctxt->n_layers++;
 	}
 
 	if (((compose_setup_t *)setup)->texture) {
-		til_setup_t		*texture_setup = NULL;
+		til_setup_t	*texture_setup = NULL;
 
 		ctxt->texture.module = til_lookup_module(((compose_setup_t *)setup)->texture);
 		(void) til_module_randomize_setup(ctxt->texture.module, &texture_setup, NULL);
 
-		(void) til_module_create_context(ctxt->texture.module, ticks, texture_setup, &ctxt->texture.module_ctxt);
+		(void) til_module_create_context(ctxt->texture.module, rand(), ticks, texture_setup, &ctxt->texture.module_ctxt);
 		til_setup_free(texture_setup);
 	}
 
diff --git a/src/modules/drizzle/drizzle.c b/src/modules/drizzle/drizzle.c
index 5717bc7..21d4fbf 100644
--- a/src/modules/drizzle/drizzle.c
+++ b/src/modules/drizzle/drizzle.c
@@ -72,7 +72,7 @@ static inline uint32_t color_to_uint32(v3f_t color) {
 }
 
 
-static void * drizzle_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * drizzle_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	drizzle_context_t	*ctxt;
 
diff --git a/src/modules/flui2d/flui2d.c b/src/modules/flui2d/flui2d.c
index f8afffb..4f87b54 100644
--- a/src/modules/flui2d/flui2d.c
+++ b/src/modules/flui2d/flui2d.c
@@ -243,7 +243,7 @@ static void gamma_init(float gamma)
 }
 
 
-static void * flui2d_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * flui2d_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	static int		initialized;
 	flui2d_context_t	*ctxt;
diff --git a/src/modules/julia/julia.c b/src/modules/julia/julia.c
index 95846e3..c24e40a 100644
--- a/src/modules/julia/julia.c
+++ b/src/modules/julia/julia.c
@@ -65,7 +65,7 @@ static uint32_t	colors[] = {
 		};
 
 
-static void * julia_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * julia_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	julia_context_t	*ctxt;
 
diff --git a/src/modules/meta2d/meta2d.c b/src/modules/meta2d/meta2d.c
index 24af28c..8b87804 100644
--- a/src/modules/meta2d/meta2d.c
+++ b/src/modules/meta2d/meta2d.c
@@ -65,7 +65,7 @@ static inline uint32_t color_to_uint32(v3f_t color) {
 }
 
 
-static void * meta2d_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * meta2d_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	meta2d_context_t	*ctxt;
 
diff --git a/src/modules/montage/montage.c b/src/modules/montage/montage.c
index 645e9da..a7030ff 100644
--- a/src/modules/montage/montage.c
+++ b/src/modules/montage/montage.c
@@ -15,7 +15,7 @@ typedef struct montage_context_t {
 } montage_context_t;
 
 static void setup_next_module(montage_context_t *ctxt);
-static void * montage_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup);
+static void * montage_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup);
 static void montage_destroy_context(void *context);
 static void montage_prepare_frame(void *context, unsigned ticks, unsigned n_cpus, til_fb_fragment_t *fragment, til_fragmenter_t *res_fragmenter);
 static void montage_render_fragment(void *context, unsigned ticks, unsigned cpu, til_fb_fragment_t *fragment);
@@ -31,7 +31,7 @@ til_module_t	montage_module = {
 };
 
 
-static void * montage_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * montage_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	const til_module_t	**modules, *rtv_module, *compose_module;
 	size_t			n_modules;
@@ -90,7 +90,7 @@ static void * montage_create_context(unsigned ticks, unsigned n_cpus, til_setup_
 		(void) til_module_randomize_setup(module, &setup, NULL);
 
 		if (module->create_context)	/* FIXME errors */
-			ctxt->contexts[i] = module->create_context(ticks, 1, setup);
+			ctxt->contexts[i] = module->create_context(rand(), ticks, 1, setup);
 
 		til_setup_free(setup);
 	}
diff --git a/src/modules/pixbounce/pixbounce.c b/src/modules/pixbounce/pixbounce.c
index a66fb78..99a8519 100644
--- a/src/modules/pixbounce/pixbounce.c
+++ b/src/modules/pixbounce/pixbounce.c
@@ -239,7 +239,7 @@ static uint32_t pick_color()
 	return makergb(rand()%256, rand()%256, rand()%256, 1);
 }
 
-static void * pixbounce_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * pixbounce_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	pixbounce_context_t *ctxt;
 
diff --git a/src/modules/plasma/plasma.c b/src/modules/plasma/plasma.c
index ee499a6..aca4e85 100644
--- a/src/modules/plasma/plasma.c
+++ b/src/modules/plasma/plasma.c
@@ -51,7 +51,7 @@ static void init_plasma(int32_t *costab, int32_t *sintab)
 }
 
 
-static void * plasma_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * plasma_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	static int		initialized;
 	plasma_context_t	*ctxt;
diff --git a/src/modules/plato/plato.c b/src/modules/plato/plato.c
index 18f02e3..2ca3478 100644
--- a/src/modules/plato/plato.c
+++ b/src/modules/plato/plato.c
@@ -608,7 +608,7 @@ static void draw_polyhedron(const polyhedron_t *polyhedron, m4f_t *transform, ti
 }
 
 
-static void * plato_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * plato_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	plato_context_t	*ctxt;
 
diff --git a/src/modules/ray/ray.c b/src/modules/ray/ray.c
index 2b3c836..14ef45f 100644
--- a/src/modules/ray/ray.c
+++ b/src/modules/ray/ray.c
@@ -130,7 +130,7 @@ typedef struct ray_context_t {
 } ray_context_t;
 
 
-static void * ray_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * ray_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	return calloc(1, sizeof(ray_context_t));
 }
diff --git a/src/modules/roto/roto.c b/src/modules/roto/roto.c
index 1dafd53..0969929 100644
--- a/src/modules/roto/roto.c
+++ b/src/modules/roto/roto.c
@@ -31,7 +31,7 @@ static int32_t	costab[FIXED_TRIG_LUT_SIZE], sintab[FIXED_TRIG_LUT_SIZE];
 static uint8_t	texture[256][256];
 static color_t	palette[2];
 
-static void * roto_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * roto_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	roto_context_t	*ctxt;
 
diff --git a/src/modules/rtv/rtv.c b/src/modules/rtv/rtv.c
index 4dde3bc..6cd9744 100644
--- a/src/modules/rtv/rtv.c
+++ b/src/modules/rtv/rtv.c
@@ -59,7 +59,7 @@ typedef struct rtv_setup_t {
 } rtv_setup_t;
 
 static void setup_next_channel(rtv_context_t *ctxt, unsigned ticks);
-static void * rtv_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup);
+static void * rtv_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup);
 static void rtv_destroy_context(void *context);
 static void rtv_prepare_frame(void *context, unsigned ticks, unsigned n_cpus, til_fb_fragment_t *fragment, til_fragmenter_t *res_fragmenter);
 static void rtv_finish_frame(void *context, unsigned ticks, til_fb_fragment_t *fragment);
@@ -186,7 +186,7 @@ static void setup_next_channel(rtv_context_t *ctxt, unsigned ticks)
 	}
 
 	if (!ctxt->channel->module_ctxt)
-		(void) til_module_create_context(ctxt->channel->module, ticks, ctxt->channel->module_setup, &ctxt->channel->module_ctxt);
+		(void) til_module_create_context(ctxt->channel->module, rand(), ticks, ctxt->channel->module_setup, &ctxt->channel->module_ctxt);
 
 	ctxt->channel->last_on_time = now;
 }
@@ -213,7 +213,7 @@ static int rtv_should_skip_module(const rtv_setup_t *setup, const til_module_t *
 }
 
 
-static void * rtv_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * rtv_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	rtv_context_t		*ctxt;
 	const til_module_t	**modules;
@@ -242,7 +242,7 @@ static void * rtv_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *s
 	ctxt->snow_channel.module = &rtv_none_module;
 	if (((rtv_setup_t *)setup)->snow_module) {
 		ctxt->snow_channel.module = til_lookup_module(((rtv_setup_t *)setup)->snow_module);
-		(void) til_module_create_context(ctxt->snow_channel.module, ticks, NULL, &ctxt->snow_channel.module_ctxt);
+		(void) til_module_create_context(ctxt->snow_channel.module, rand(), ticks, NULL, &ctxt->snow_channel.module_ctxt);
 	}
 
 	for (size_t i = 0; i < n_modules; i++) {
diff --git a/src/modules/shapes/shapes.c b/src/modules/shapes/shapes.c
index 6c912ca..6159684 100644
--- a/src/modules/shapes/shapes.c
+++ b/src/modules/shapes/shapes.c
@@ -89,7 +89,7 @@ static shapes_setup_t shapes_default_setup = {
 };
 
 
-static void * shapes_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * shapes_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	shapes_context_t	*ctxt;
 
diff --git a/src/modules/snow/snow.c b/src/modules/snow/snow.c
index 8befc92..82ad847 100644
--- a/src/modules/snow/snow.c
+++ b/src/modules/snow/snow.c
@@ -20,7 +20,7 @@ typedef struct snow_context_t {
 } snow_context_t;
 
 
-static void * snow_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * snow_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	snow_context_t	*ctxt;
 
diff --git a/src/modules/sparkler/sparkler.c b/src/modules/sparkler/sparkler.c
index 08d0e9a..10d8638 100644
--- a/src/modules/sparkler/sparkler.c
+++ b/src/modules/sparkler/sparkler.c
@@ -33,7 +33,7 @@ extern particle_ops_t	simple_ops;
 
 static sparkler_setup_t sparkler_default_setup;
 
-static void * sparkler_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * sparkler_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	sparkler_context_t	*ctxt;
 
diff --git a/src/modules/spiro/spiro.c b/src/modules/spiro/spiro.c
index b51b22d..07d9fbf 100644
--- a/src/modules/spiro/spiro.c
+++ b/src/modules/spiro/spiro.c
@@ -29,7 +29,7 @@ typedef struct spiro_context_t {
 } spiro_context_t;
 
 
-static void * spiro_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * spiro_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	spiro_context_t *ctxt;
 	float		z;
diff --git a/src/modules/stars/stars.c b/src/modules/stars/stars.c
index e975c7c..21ae7f5 100644
--- a/src/modules/stars/stars.c
+++ b/src/modules/stars/stars.c
@@ -49,7 +49,7 @@ float get_random_unit_coord() {
 }
 
 
-static void * stars_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * stars_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	stars_context_t *ctxt;
 	float		z;
diff --git a/src/modules/submit/submit.c b/src/modules/submit/submit.c
index af2d044..fa7a95c 100644
--- a/src/modules/submit/submit.c
+++ b/src/modules/submit/submit.c
@@ -265,7 +265,7 @@ static void setup_grid(submit_context_t *ctxt)
 }
 
 
-static void * submit_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * submit_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	submit_context_t	*ctxt;
 
diff --git a/src/modules/swab/swab.c b/src/modules/swab/swab.c
index 90f7a36..e81fec9 100644
--- a/src/modules/swab/swab.c
+++ b/src/modules/swab/swab.c
@@ -64,7 +64,7 @@ static inline uint32_t color_to_uint32(color_t color) {
 }
 
 
-static void * swab_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * swab_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	swab_context_t	*ctxt;
 
diff --git a/src/modules/swarm/swarm.c b/src/modules/swarm/swarm.c
index 2d37e28..a57c9fe 100644
--- a/src/modules/swarm/swarm.c
+++ b/src/modules/swarm/swarm.c
@@ -179,7 +179,7 @@ static inline uint32_t color_to_uint32(v3f_t color) {
 }
 
 
-static void * swarm_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * swarm_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	swarm_context_t	*ctxt;
 
diff --git a/src/modules/voronoi/voronoi.c b/src/modules/voronoi/voronoi.c
index 2bd6cdc..3e6a5e3 100644
--- a/src/modules/voronoi/voronoi.c
+++ b/src/modules/voronoi/voronoi.c
@@ -77,7 +77,7 @@ static void voronoi_randomize(voronoi_context_t *ctxt)
 }
 
 
-static void * voronoi_create_context(unsigned ticks, unsigned n_cpus, til_setup_t *setup)
+static void * voronoi_create_context(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup)
 {
 	voronoi_context_t	*ctxt;
 
diff --git a/src/til.c b/src/til.c
index 8451113..ce63b59 100644
--- a/src/til.c
+++ b/src/til.c
@@ -200,7 +200,7 @@ void til_module_render(const til_module_t *module, void *context, unsigned ticks
 }
 
 
-int til_module_create_context(const til_module_t *module, unsigned ticks, til_setup_t *setup, void **res_context)
+int til_module_create_context(const til_module_t *module, unsigned seed, unsigned ticks, til_setup_t *setup, void **res_context)
 {
 	void	*context;
 
@@ -210,7 +210,7 @@ int til_module_create_context(const til_module_t *module, unsigned ticks, til_se
 	if (!module->create_context)
 		return 0;
 
-	context = module->create_context(ticks, til_threads_num_threads(til_threads), setup);
+	context = module->create_context(seed, ticks, til_threads_num_threads(til_threads), setup);
 	if (!context)
 		return -ENOMEM;
 
diff --git a/src/til.h b/src/til.h
index c422914..91ed157 100644
--- a/src/til.h
+++ b/src/til.h
@@ -15,7 +15,7 @@ typedef struct til_knob_t til_knob_t;
 #define TIL_MODULE_OVERLAYABLE	1u
 
 typedef struct til_module_t {
-	void *		(*create_context)(unsigned ticks, unsigned n_cpus, til_setup_t *setup);
+	void *		(*create_context)(unsigned seed, unsigned ticks, unsigned n_cpus, til_setup_t *setup);
 	void		(*destroy_context)(void *context);
 	void		(*prepare_frame)(void *context, unsigned ticks, unsigned n_cpus, til_fb_fragment_t *fragment, til_fragmenter_t *res_fragmenter);
 	void		(*render_fragment)(void *context, unsigned ticks, unsigned cpu, til_fb_fragment_t *fragment);
@@ -34,7 +34,7 @@ void til_shutdown(void);
 const til_module_t * til_lookup_module(const char *name);
 void til_get_modules(const til_module_t ***res_modules, size_t *res_n_modules);
 void til_module_render(const til_module_t *module, void *context, unsigned ticks, til_fb_fragment_t *fragment);
-int til_module_create_context(const til_module_t *module, unsigned ticks, til_setup_t *setup, void **res_context);
+int til_module_create_context(const til_module_t *module, unsigned seed, unsigned ticks, til_setup_t *setup, void **res_context);
 void * til_module_destroy_context(const til_module_t *module, void *context);
 int til_module_setup(til_settings_t *settings, til_setting_t **res_setting, const til_setting_desc_t **res_desc, til_setup_t **res_setup);
 int til_module_randomize_setup(const til_module_t *module, til_setup_t **res_setup, char **res_arg);