From 4b8c29a7081756e738592fe51e888aa06dafe00d Mon Sep 17 00:00:00 2001
From: Mickael Savinaud <savmickael@users.noreply.github.com>
Date: Fri, 9 Mar 2012 17:16:04 +0000
Subject: [PATCH] [trunk] add tcd_get_encoded_tile_size in trunk from branch
 v2alpha

---
 libopenjpeg/tcd.c | 27 +++++++++++++++++++++++++++
 libopenjpeg/tcd.h | 13 ++++++++-----
 2 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/libopenjpeg/tcd.c b/libopenjpeg/tcd.c
index ea09a17f..706d2654 100644
--- a/libopenjpeg/tcd.c
+++ b/libopenjpeg/tcd.c
@@ -2623,4 +2623,31 @@ void tcd_code_block_dec_deallocate (opj_tcd_precinct_v2_t * p_precinct)
 	}
 }
 
+OPJ_UINT32 tcd_get_encoded_tile_size ( opj_tcd_v2_t *p_tcd )
+{
+	OPJ_UINT32 i,l_data_size = 0;
+	opj_image_comp_t * l_img_comp = 00;
+	opj_tcd_tilecomp_t * l_tilec = 00;
+	OPJ_UINT32 l_size_comp, l_remaining;
 
+	l_tilec = p_tcd->tcd_image->tiles->comps;
+	l_img_comp = p_tcd->image->comps;
+	for (i=0;i<p_tcd->image->numcomps;++i) {
+		l_size_comp = l_img_comp->prec >> 3; /*(/ 8)*/
+		l_remaining = l_img_comp->prec & 7;  /* (%8) */
+
+		if (l_remaining) {
+			++l_size_comp;
+		}
+
+		if (l_size_comp == 3) {
+			l_size_comp = 4;
+		}
+
+		l_data_size += l_size_comp * (l_tilec->x1 - l_tilec->x0) * (l_tilec->y1 - l_tilec->y0);
+		++l_img_comp;
+		++l_tilec;
+	}
+
+	return l_data_size;
+}
diff --git a/libopenjpeg/tcd.h b/libopenjpeg/tcd.h
index cb9967cd..7fdf258b 100644
--- a/libopenjpeg/tcd.h
+++ b/libopenjpeg/tcd.h
@@ -486,11 +486,14 @@ opj_bool tcd_decode_tile_v2(opj_tcd_v2_t *tcd,
 /**
  * Copies tile data from the system onto the given memory block.
  */
-opj_bool tcd_update_tile_data (
-						 opj_tcd_v2_t *p_tcd,
-						 OPJ_BYTE * p_dest,
-						 OPJ_UINT32 p_dest_length
-						 );
+opj_bool tcd_update_tile_data (	opj_tcd_v2_t *p_tcd,
+								OPJ_BYTE * p_dest,
+								OPJ_UINT32 p_dest_length );
+
+/**
+ *
+ */
+OPJ_UINT32 tcd_get_encoded_tile_size ( opj_tcd_v2_t *p_tcd );
 
 /* ----------------------------------------------------------------------- */
 /*@}*/