parallelize compressor filter with openmp

2 files changed, 6 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 6ba8c06..3673140 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
-CFLAGS = -std=c99 -I ./ -Wall -Wextra -pedantic -Wno-deprecated-declarations -D_XOPEN_SOURCE=700L
-LDFLAGS = -lSDL2 -lSDL2_ttf -lm
+CFLAGS = -std=c99 -I ./ -fopenmp -Wall -Wextra -pedantic -Wno-deprecated-declarations -D_XOPEN_SOURCE=700L
+LDFLAGS = -lSDL2 -lSDL2_ttf -lm -fopenmp
 
 SRC = main.c microui.c renderer.c widget.c ui.c unit.c engine.c compressor.c eprintf.c cwalk.c toml.c util.c
 OBJ = ${SRC:.c=.o}
diff --git a/widget.c b/widget.c
index faf57cb..79e6028 100644
--- a/widget.c
+++ b/widget.c
@@ -3,6 +3,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <omp.h>
+
 #include "microui.h"
 #include "unit.h"
 #include "compressor.h"
@@ -245,8 +247,8 @@ sc_filter(w_Select_Compressor *select) {
 	series = select->series_filter;
 	model = select->model_filter;
 
-	/* TODO: parallelize */
 	select->nfiltered = 0;
+	#pragma omp parallel for ordered
 	for (i = 0; i < select->n; i++) {
 		comp = &select->comps[i];
 
@@ -258,6 +260,7 @@ sc_filter(w_Select_Compressor *select) {
 			continue;
 		}
 
+		#pragma omp ordered
 		select->filtered[select->nfiltered++] = i;
 	}
 }