Add kawase blur (#120)

Co-authored-by: Erik Reider <[email protected]>
Co-authored-by: Will McKinnon <[email protected]>

1 files changed, 28 insertions, 0 deletions

diff --git a/sway/commands/blur_radius.c b/sway/commands/blur_radius.c
new file mode 100644
index 00000000..f6e7d4ed
--- /dev/null
+++ b/sway/commands/blur_radius.c
@@ -0,0 +1,28 @@
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "sway/output.h"
+
+struct cmd_results *cmd_blur_radius(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "blur_radius", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+
+	char *inv;
+	int value = strtol(argv[0], &inv, 10);
+	if (*inv != '\0' || value < 0 || value > 10) {
+		return cmd_results_new(CMD_FAILURE, "Invalid size specified");
+	}
+
+	config->blur_params.radius = value;
+
+	struct sway_output *output;
+	wl_list_for_each(output, &root->all_outputs, link) {
+		if (output->renderer) {
+			output->renderer->blur_buffer_dirty = true;
+			output_damage_whole(output);
+		}
+	}
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}