Merge to M46: upgrade openjpeg to commit# cf352af

third_party/libopenjpeg20/image.c

Index: third_party/libopenjpeg20/image.c
diff --git a/third_party/libopenjpeg20/image.c b/third_party/libopenjpeg20/image.c
index 8e68668e42758a97d7e61d18017f26115a342835..23462f05ff4d1638f88569942a3968ec667bf57f 100644
--- a/third_party/libopenjpeg20/image.c
+++ b/third_party/libopenjpeg20/image.c
@@ -47,7 +47,8 @@ opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptpa
 		/* allocate memory for the per-component information */
 		image->comps = (opj_image_comp_t*)opj_calloc(1,image->numcomps * sizeof(opj_image_comp_t));
 		if(!image->comps) {
-			fprintf(stderr,"Unable to allocate memory for image.\n");
+			/* TODO replace with event manager, breaks API */
+			/* fprintf(stderr,"Unable to allocate memory for image.\n"); */
 			opj_image_destroy(image);
 			return NULL;
 		}
@@ -65,7 +66,8 @@ opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptpa
 			comp->sgnd = cmptparms[compno].sgnd;
 			comp->data = (OPJ_INT32*) opj_calloc(comp->w * comp->h, sizeof(OPJ_INT32));
 			if(!comp->data) {
-				fprintf(stderr,"Unable to allocate memory for image.\n");
+				/* TODO replace with event manager, breaks API */
+				/* fprintf(stderr,"Unable to allocate memory for image.\n"); */
 				opj_image_destroy(image);
 				return NULL;
 			}
@@ -107,27 +109,29 @@ void OPJ_CALLCONV opj_image_destroy(opj_image_t *image) {
 void opj_image_comp_header_update(opj_image_t * p_image_header, const struct opj_cp * p_cp)
 {
 	OPJ_UINT32 i, l_width, l_height;
-	OPJ_INT32 l_x0, l_y0, l_x1, l_y1;
-	OPJ_INT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1;
+	OPJ_UINT32 l_x0, l_y0, l_x1, l_y1;
+	OPJ_UINT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1;
 	opj_image_comp_t* l_img_comp = NULL;
 
-	l_x0 = opj_int_max((OPJ_INT32)p_cp->tx0 , (OPJ_INT32)p_image_header->x0);
-	l_y0 = opj_int_max((OPJ_INT32)p_cp->ty0 , (OPJ_INT32)p_image_header->y0);
-	l_x1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + p_cp->tw * p_cp->tdx), (OPJ_INT32)p_image_header->x1);
-	l_y1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + p_cp->th * p_cp->tdy), (OPJ_INT32)p_image_header->y1);
+	l_x0 = opj_uint_max(p_cp->tx0 , p_image_header->x0);
+	l_y0 = opj_uint_max(p_cp->ty0 , p_image_header->y0);
+	l_x1 = p_cp->tx0 + (p_cp->tw - 1U) * p_cp->tdx; /* validity of p_cp members used here checked in opj_j2k_read_siz. Can't overflow. */
+	l_y1 = p_cp->ty0 + (p_cp->th - 1U) * p_cp->tdy; /* can't overflow */
+	l_x1 = opj_uint_min(opj_uint_adds(l_x1, p_cp->tdx), p_image_header->x1); /* use add saturated to prevent overflow */
+	l_y1 = opj_uint_min(opj_uint_adds(l_y1, p_cp->tdy), p_image_header->y1); /* use add saturated to prevent overflow */
 
 	l_img_comp = p_image_header->comps;
 	for	(i = 0; i < p_image_header->numcomps; ++i) {
-		l_comp_x0 = opj_int_ceildiv(l_x0, (OPJ_INT32)l_img_comp->dx);
-		l_comp_y0 = opj_int_ceildiv(l_y0, (OPJ_INT32)l_img_comp->dy);
-		l_comp_x1 = opj_int_ceildiv(l_x1, (OPJ_INT32)l_img_comp->dx);
-		l_comp_y1 = opj_int_ceildiv(l_y1, (OPJ_INT32)l_img_comp->dy);
-		l_width = (OPJ_UINT32)opj_int_ceildivpow2(l_comp_x1 - l_comp_x0, (OPJ_INT32)l_img_comp->factor);
-		l_height = (OPJ_UINT32)opj_int_ceildivpow2(l_comp_y1 - l_comp_y0, (OPJ_INT32)l_img_comp->factor);
+		l_comp_x0 = opj_uint_ceildiv(l_x0, l_img_comp->dx);
+		l_comp_y0 = opj_uint_ceildiv(l_y0, l_img_comp->dy);
+		l_comp_x1 = opj_uint_ceildiv(l_x1, l_img_comp->dx);
+		l_comp_y1 = opj_uint_ceildiv(l_y1, l_img_comp->dy);
+		l_width   = opj_uint_ceildivpow2(l_comp_x1 - l_comp_x0, l_img_comp->factor);
+		l_height  = opj_uint_ceildivpow2(l_comp_y1 - l_comp_y0, l_img_comp->factor);
 		l_img_comp->w = l_width;
 		l_img_comp->h = l_height;
-		l_img_comp->x0 = (OPJ_UINT32)l_comp_x0/*l_x0*/;
-		l_img_comp->y0 = (OPJ_UINT32)l_comp_y0/*l_y0*/;
+		l_img_comp->x0 = l_comp_x0;
+		l_img_comp->y0 = l_comp_y0;
 		++l_img_comp;
 	}
 }