Merge branch 'master' into coc-qcc

[openjpeg.git] / src / lib / openjp2 / j2k.c

diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c
index 155b1eb8e6fbd781ee9f4b81f31f072b4cb44f9c..e8522277b2b30869ea2e0afe04d1a8305cfeec41 100644 (file)
--- a/src/lib/openjp2/j2k.c
+++ b/src/lib/openjp2/j2k.c
@@ -10096,6 +10096,7 @@ OPJ_BOOL opj_j2k_encode(opj_j2k_t * p_j2k,
         OPJ_UINT32 l_nb_tiles;
         OPJ_UINT32 l_max_tile_size = 0, l_current_tile_size;
         OPJ_BYTE * l_current_data = 00;
+        OPJ_BOOL l_reuse_data = OPJ_FALSE;
         opj_tcd_t* p_tcd = 00;
 
         /* preconditions */
@@ -10106,6 +10107,17 @@ OPJ_BOOL opj_j2k_encode(opj_j2k_t * p_j2k,
         p_tcd = p_j2k->m_tcd;
 
         l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw;
+        if (l_nb_tiles == 1) {
+                l_reuse_data = OPJ_TRUE;
+#ifdef __SSE__
+                for (j=0;j<p_j2k->m_tcd->image->numcomps;++j) {
+                        opj_image_comp_t * l_img_comp = p_tcd->image->comps + j;
+                        if (((size_t)l_img_comp->data & 0xFU) != 0U) { /* tile data shall be aligned on 16 bytes */
+                                                                                                       l_reuse_data = OPJ_FALSE;
+                        }
+                }
+#endif
+        }
         for (i=0;i<l_nb_tiles;++i) {
                 if (! opj_j2k_pre_write_tile(p_j2k,i,p_stream,p_manager)) {
                         if (l_current_data) {
@@ -10118,7 +10130,7 @@ OPJ_BOOL opj_j2k_encode(opj_j2k_t * p_j2k,
                 /* otherwise, allocate the data */
                 for (j=0;j<p_j2k->m_tcd->image->numcomps;++j) {
                         opj_tcd_tilecomp_t* l_tilec = p_tcd->tcd_image->tiles->comps + j;
-                        if (l_nb_tiles == 1) {
+                        if (l_reuse_data) {
                                                                                                        opj_image_comp_t * l_img_comp = p_tcd->image->comps + j;
                                                                                                        l_tilec->data  =  l_img_comp->data;
                                                                                                        l_tilec->ownsData = OPJ_FALSE;
@@ -10133,7 +10145,7 @@ OPJ_BOOL opj_j2k_encode(opj_j2k_t * p_j2k,
                         }
                 }
                 l_current_tile_size = opj_tcd_get_encoded_tile_size(p_j2k->m_tcd);
-                if (l_nb_tiles > 1) {
+                if (!l_reuse_data) {
                         if (l_current_tile_size > l_max_tile_size) {
                                                                                                        OPJ_BYTE *l_new_current_data = (OPJ_BYTE *) opj_realloc(l_current_data, l_current_tile_size);
                                                                                                        if (! l_new_current_data) {