From: hj kim <backto.kim@samsung.com>
Date: Wed, 17 Jun 2020 02:04:41 +0000 (+0900)
Subject: Fix wrong return value and improve image_util_extract_color_from_memory()
X-Git-Tag: accepted/tizen/unified/20200626.133543~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F12%2F236412%2F2;p=platform%2Fcore%2Fapi%2Fimage-util.git

Fix wrong return value and improve image_util_extract_color_from_memory()

Change-Id: I4c12373dd3824c13c153abfa701726a2d1694dbe
---

diff --git a/src/image_util.c b/src/image_util.c
index 79d8a7b..cb18486 100644
--- a/src/image_util.c
+++ b/src/image_util.c
@@ -547,37 +547,32 @@ int image_util_calculate_buffer_size(int width, int height, image_util_colorspac
 int image_util_extract_color_from_memory(const unsigned char *image_buffer, int width, int height, unsigned char *rgb_r, unsigned char *rgb_g, unsigned char *rgb_b)
 {
 	int ret = IMAGE_UTIL_ERROR_NONE;
-
-	image_util_retvm_if((image_buffer == NULL), IMAGE_UTIL_ERROR_INVALID_PARAMETER, "image_buffer is null");
-
 	GModule *module = NULL;
 	ModuleFunc mmutil_imgcv_module_func = NULL;
+
+	image_util_retvm_if(image_buffer, IMAGE_UTIL_ERROR_INVALID_PARAMETER, "Invalid image_buffer");
+	image_util_retvm_if(rgb_r, IMAGE_UTIL_ERROR_INVALID_PARAMETER, "Invalid rgb_r");
+	image_util_retvm_if(rgb_g, IMAGE_UTIL_ERROR_INVALID_PARAMETER, "Invalid rgb_g");
+	image_util_retvm_if(rgb_b, IMAGE_UTIL_ERROR_INVALID_PARAMETER, "Invalid rgb_b");
+
 	module = g_module_open(PATH_MMUTIL_IMGCV_LIB, G_MODULE_BIND_LAZY);
-	image_util_retvm_if((module == NULL), IMAGE_UTIL_ERROR_NO_SUCH_FILE, "fail to open module");
+	image_util_retvm_if(!module, IMAGE_UTIL_ERROR_INVALID_OPERATION, "fail to open module");
 
 	if (!g_module_symbol(module, IMGCV_FUNC_NAME, (gpointer *)&mmutil_imgcv_module_func)) {
 		image_util_error("fail to g_module_symbol");
 		g_module_close(module);
-
 		return IMAGE_UTIL_ERROR_INVALID_OPERATION;
 	}
 
-	if (!mmutil_imgcv_module_func)
+	if (!mmutil_imgcv_module_func) {
+		image_util_error("fail to get mmutil_imgcv_module_func");
 		g_module_close(module);
+		return IMAGE_UTIL_ERROR_INVALID_OPERATION;
+	}
 
-	image_util_retvm_if((mmutil_imgcv_module_func == NULL), IMAGE_UTIL_ERROR_INVALID_OPERATION, "fail to get symbol");
-
-	unsigned char r_color, g_color, b_color;
-	ret = mmutil_imgcv_module_func((void *)image_buffer, width, height, &r_color, &g_color, &b_color);
-
-	*rgb_r = r_color;
-	*rgb_g = g_color;
-	*rgb_b = b_color;
+	ret = mmutil_imgcv_module_func((void *)image_buffer, width, height, rgb_r, rgb_g, rgb_b);
 
-	if (module) {
-		g_module_close(module);
-		module = NULL;
-	}
+	g_module_close(module);
 
 	return _image_error_capi(ret);
 }