modules/checkers: WIP experimenting with texturable settingscheckers-waves-textureable-setting

It seems like one could make good use of fine-grained dynamic
control of texturability

1 files changed, 50 insertions, 1 deletions

diff --git a/src/modules/checkers/checkers.c b/src/modules/checkers/checkers.c
index 841aadd..a3c4957 100644
--- a/src/modules/checkers/checkers.c
+++ b/src/modules/checkers/checkers.c
@@ -28,6 +28,7 @@
 #define CHECKERS_DEFAULT_DYNAMICS_RATE	1.0
 #define CHECKERS_DEFAULT_SAMPLED	0
 #define CHECKERS_DEFAULT_COLOR		0xffffffff
+#define CHECKERS_DEFAULT_TEXTURABLE	CHECKERS_TEXTURABLE_ON
 
 
 typedef enum checkers_pattern_t {
@@ -43,6 +44,12 @@ typedef enum checkers_dynamics_t {
 	CHECKERS_DYNAMICS_SONAR,
 } checkers_dynamics_t;
 
+typedef enum checkers_texturable_t {
+	CHECKERS_TEXTURABLE_OFF,
+	CHECKERS_TEXTURABLE_ON,
+	CHECKERS_TEXTURABLE_RANDOM,
+} checkers_texturable_t;
+
 typedef struct checkers_setup_t {
 	til_setup_t		til_setup;
 	unsigned		size;
@@ -50,6 +57,7 @@ typedef struct checkers_setup_t {
 	checkers_dynamics_t	dynamics;
 	float			rate;
 	uint32_t		color;
+	checkers_texturable_t	texturable;
 	unsigned		sampled:1;
 } checkers_setup_t;
 
@@ -66,6 +74,7 @@ static checkers_setup_t checkers_default_setup = {
 	.rate = CHECKERS_DEFAULT_DYNAMICS_RATE,
 	.sampled = CHECKERS_DEFAULT_SAMPLED,
 	.color = CHECKERS_DEFAULT_COLOR,
+	.texturable = CHECKERS_DEFAULT_TEXTURABLE,
 };
 
 
@@ -173,11 +182,23 @@ static void checkers_render_fragment(void *context, unsigned ticks, unsigned cpu
 		til_fb_fragment_clear(fragment);
 	else {
 		uint32_t	color = ctxt->setup.color;
+		uint32_t	flags;
 
 		if (ctxt->setup.sampled && fragment->cleared)
 			color = til_fb_fragment_get_pixel_unchecked(fragment, fragment->x + (fragment->width >> 1), fragment->y + (fragment->height >> 1));
 
-		til_fb_fragment_fill(fragment, TIL_FB_DRAW_FLAG_TEXTURABLE, color);
+		switch (ctxt->setup.texturable) {
+		case CHECKERS_TEXTURABLE_OFF:
+			flags = 0;
+			break;
+		case CHECKERS_TEXTURABLE_ON:
+			flags = TIL_FB_DRAW_FLAG_TEXTURABLE;
+			break;
+		case CHECKERS_TEXTURABLE_RANDOM:
+			flags = TIL_FB_DRAW_FLAG_TEXTURABLE * (rand() % 2);
+			break;
+		}
+		til_fb_fragment_fill(fragment, flags, color);
 	}
 }
 
@@ -189,6 +210,7 @@ static int checkers_setup(const til_settings_t *settings, til_setting_t **res_se
 	const char	*dynamics;
 	const char	*dynamics_rate;
 	const char	*sampled;
+	const char	*texturable;
 	const char	*size_values[] = {
 				"4",
 				"8",
@@ -227,6 +249,12 @@ static int checkers_setup(const til_settings_t *settings, til_setting_t **res_se
 				"on",
 				NULL
 			};
+	const char	*texturable_values[] = {
+				"off",
+				"on",
+				"random",
+				NULL
+			};
 	int		r;
 
 	r = til_settings_get_and_describe_value(settings,
@@ -302,6 +330,20 @@ static int checkers_setup(const til_settings_t *settings, til_setting_t **res_se
 	if (r)
 		return r;
 
+	r = til_settings_get_and_describe_value(settings,
+						&(til_setting_desc_t){
+							.name = "Texturable filled checkers",
+							.key = "texturable",
+							.preferred = texturable_values[CHECKERS_DEFAULT_TEXTURABLE],
+							.values = texturable_values,
+							.annotations = NULL
+						},
+						&texturable,
+						res_setting,
+						res_desc);
+	if (r)
+		return r;
+
 	if (res_setup) {
 		checkers_setup_t	*setup;
 
@@ -353,6 +395,13 @@ static int checkers_setup(const til_settings_t *settings, til_setting_t **res_se
 		/* XXX FIXME TODO: color setting, parse web-style #rrggbb? */
 		setup->color = CHECKERS_DEFAULT_COLOR;
 
+		for (size_t i = 0; i < nelems(texturable_values); i++) {
+			if (!strcasecmp(texturable, texturable_values[i])) {
+				setup->texturable = i;
+				break;
+			}
+		}
+
 		*res_setup = &setup->til_setup;
 	}