4 files changed, 28 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 3673140..ab9d5ce 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 CFLAGS = -std=c99 -I ./ -fopenmp -Wall -Wextra -pedantic -Wno-deprecated-declarations -D_XOPEN_SOURCE=700L
-LDFLAGS = -lSDL2 -lSDL2_ttf -lm -fopenmp
+LDFLAGS = -lSDL2 -lSDL2_ttf -lSDL2_image -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/main.c b/main.c
index e2d8f95..2d3bb18 100644
--- a/main.c
+++ b/main.c
@@ -4,6 +4,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <SDL2/SDL.h>
+
 #include "microui.h"
 #include "renderer.h"
 #include "unit.h"
diff --git a/ui.c b/ui.c
index 9dfbf87..5c2afd5 100644
--- a/ui.c
+++ b/ui.c
@@ -4,6 +4,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_image.h>
+
 #include "microui.h"
 #include "unit.h"
 #include "compressor.h"
@@ -40,6 +43,7 @@ static void init_volume_flow_rate(UI *ui);
 static void init_mass_flow_rate(UI *ui);
 static void init_mass_flow_rate_corrected(UI *ui);
 static int init_comps(UI *ui);
+static int init_comp_img(UI *ui);
 static void compute_pressure_ratio(UI *ui, int idx);
 static void compute_comp_outlet_temperature(UI *ui, int idx);
 static void compute_manifold_temperature(UI *ui, int idx);
@@ -76,6 +80,11 @@ init_ui(UI *ui) {
 		return 1;
 	}
 
+	if (init_comp_img(ui) != 0) {
+		free_ui(ui);
+		return 1;
+	}
+
 	compute(ui, 0);
 
 	return 0;
@@ -85,6 +94,7 @@ void
 free_ui(UI *ui) {
 	w_free_select_compressor(&ui->comp_select);
 	free(ui->comps);
+	SDL_FreeSurface(ui->comp_img);
 }
 
 static void
@@ -244,6 +254,19 @@ init_comps(UI *ui) {
 	return 0;
 }
 
+static int
+init_comp_img(UI *ui) {
+	const Compressor *comp;
+
+	comp = &ui->comps[ui->comp_select.idx];
+	ui->comp_img = IMG_Load(comp->imgfile);
+	if (ui->comp_img == NULL) {
+		weprintf("failed to load %s", comp->imgfile);
+		return 1;
+	}
+	return 0;
+}
+
 void
 set_displacement(UI *ui) {
 	int idx, i;
diff --git a/ui.h b/ui.h
index b5c2635..e259133 100644
--- a/ui.h
+++ b/ui.h
@@ -47,6 +47,8 @@ typedef struct {
 	Compressor *comps;
 	int ncomps;
 	w_Select_Compressor comp_select;
+
+	SDL_Surface *comp_img; /* image of compressor map. */
 } UI;
 
 int init_ui(UI *ui);