add a test func for draw/rect paint funcs

Lib/foo.c

@@ -5,15 +5,69 @@
 
 #include  "../tthimage.h"
 
+/*		==============================				*/
+int essai_show_t16x24( char *text)
+{
+if (NULL != text)
+	Image_t16x24_essai("16x24thin", text, "16x24.tga");
+else
+	Image_t16x24_essai("16x24thin", "0123456789abcdef", "16x24.tga");
+return 0;
+}
+/*		==============================				*/
+int essai_draw_paint_rect(char *outga)
+{
+Image_Desc		*img;
+Image_Rect		rect;
+int			foo, x, y;
+
+fprintf(stderr, ">>> %s ( '%s' )\n", __func__, outga);
+
+rect.x = 8;		rect.y = 8;
+rect.w = 6;		rect.h = 6;
+
+if (NULL==(img=Image_alloc(64, 32, 3))) {
+	abort();
+	}
+
+for (x=0; x<img->width; x+=2) {
+	for (y=0; y<img->height; y+=2) {
+		Image_plotRGB(img, x, y, 200, 200, 200);
+		}
+	}
+
+foo = Image_draw_rect(img, &rect, 192, 128, 64);
+if (foo) {
+	fprintf(stderr, "%s: err %d draw rect\n", __func__, foo);
+	return foo;
+	}
+
+rect.x = 24;
+foo = Image_paint_rect(img, &rect, 64, 128, 192);
+if (foo) {
+	fprintf(stderr, "%s: err %d paint rect\n", __func__, foo);
+	return foo;
+	}
+
+foo = Image_TGA_save(outga, img, 0);
+if (foo) {
+	fprintf(stderr, "%s: err %d save '%s'\n", __func__, foo, outga);
+	return foo;
+	}
+
+return OLL_KORRECT;
+}
+/*		==============================				*/
+
 int main(int argc, char *argv[])
 {
+int		foo;
+
 Image_print_version(2);
 Image_print_sizeof_structs("foo");
 
-if (2==argc)
-	Image_t16x24_essai("16x24thin", argv[1], "16x24.tga");
-else
-	Image_t16x24_essai("16x24thin", "0123456789abcdef", "16x24.tga");
+foo = essai_draw_paint_rect("foo.tga");
+fprintf(stderr, "essai draw rect --> %d\n", foo);
 
 return 0;
 }