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1diff --git a/third_party/libopenjpeg20/dwt.c b/third_party/libopenjpeg20/dwt.c
2index 4ad99ed..975a97e 100644
3--- a/third_party/libopenjpeg20/dwt.c
4+++ b/third_party/libopenjpeg20/dwt.c
5@@ -46,14 +46,12 @@
6 /** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
7 /*@{*/
8
9-#define OPJ_WS(i) v->mem[(i)*2]
10-#define OPJ_WD(i) v->mem[(1+(i)*2)]
11-
12 /** @name Local data structures */
13 /*@{*/
14
15 typedef struct dwt_local {
16 	OPJ_INT32* mem;
17+	OPJ_SIZE_T mem_count;
18 	OPJ_INT32 dn;
19 	OPJ_INT32 sn;
20 	OPJ_INT32 cas;
21@@ -107,16 +105,16 @@ static void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x);
22 /**
23 Forward 5-3 wavelet transform in 1-D
24 */
25-static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
26+static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_SIZE_T a_count, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
27 /**
28 Inverse 5-3 wavelet transform in 1-D
29 */
30 static void opj_dwt_decode_1(opj_dwt_t *v);
31-static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
32+static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_SIZE_T a_count, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
33 /**
34 Forward 9-7 wavelet transform in 1-D
35 */
36-static void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
37+static void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_SIZE_T a_count, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
38 /**
39 Explicit calculation of the Quantization Stepsizes
40 */
41@@ -124,10 +122,10 @@ static void opj_dwt_encode_stepsize(OPJ_INT32 stepsize, OPJ_INT32 numbps, opj_st
42 /**
43 Inverse wavelet transform in 2-D.
44 */
45-static OPJ_BOOL opj_dwt_decode_tile(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 i, DWT1DFN fn);
46+static OPJ_BOOL opj_dwt_decode_tile(const opj_tcd_tilecomp_t* tilec, OPJ_UINT32 i, DWT1DFN fn);
47
48-static OPJ_BOOL opj_dwt_encode_procedure(	opj_tcd_tilecomp_t * tilec,
49-										    void (*p_function)(OPJ_INT32 *, OPJ_INT32,OPJ_INT32,OPJ_INT32) );
50+static OPJ_BOOL opj_dwt_encode_procedure(const opj_tcd_tilecomp_t * tilec,
51+										    void(*p_function)(OPJ_INT32 *, OPJ_SIZE_T, OPJ_INT32, OPJ_INT32, OPJ_INT32));
52
53 static OPJ_UINT32 opj_dwt_max_resolution(opj_tcd_resolution_t* restrict r, OPJ_UINT32 i);
54
55@@ -156,13 +154,20 @@ static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k, OPJ_IN
56
57 /*@}*/
58
59-#define OPJ_S(i) a[(i)*2]
60-#define OPJ_D(i) a[(1+(i)*2)]
61-#define OPJ_S_(i) ((i)<0?OPJ_S(0):((i)>=sn?OPJ_S(sn-1):OPJ_S(i)))
62-#define OPJ_D_(i) ((i)<0?OPJ_D(0):((i)>=dn?OPJ_D(dn-1):OPJ_D(i)))
63-/* new */
64-#define OPJ_SS_(i) ((i)<0?OPJ_S(0):((i)>=dn?OPJ_S(dn-1):OPJ_S(i)))
65-#define OPJ_DD_(i) ((i)<0?OPJ_D(0):((i)>=sn?OPJ_D(sn-1):OPJ_D(i)))
66+#define IDX_S(i) (i)*2
67+#define IDX_D(i) 1 + (i)* 2
68+#define UNDERFLOW_SN(i) ((i) >= sn&&sn>0)
69+#define UNDERFLOW_DN(i) ((i) >= dn&&dn>0)
70+#define OVERFLOW_S(i) (IDX_S(i) >= a_count)
71+#define OVERFLOW_D(i) (IDX_D(i) >= a_count)
72+
73+#define OPJ_S(i) a[IDX_S(i)]
74+#define OPJ_D(i) a[IDX_D(i)]
75+#define OPJ_S_(i) ((i)<0 ? OPJ_S(0) : (UNDERFLOW_SN(i) ? OPJ_S(sn - 1) : OVERFLOW_S(i) ? OPJ_S(i - 1) : OPJ_S(i)))
76+#define OPJ_D_(i) ((i)<0 ? OPJ_D(0) : (UNDERFLOW_DN(i) ? OPJ_D(dn - 1) : OVERFLOW_D(i) ? OPJ_D(i - 1) : OPJ_D(i)))
77+/* new */
78+#define OPJ_SS_(i) ((i)<0 ? OPJ_S(0) : (UNDERFLOW_DN(i) ? OPJ_S(dn - 1) : OVERFLOW_S(i) ? OPJ_S(i - 1) : OPJ_S(i)))
79+#define OPJ_DD_(i) ((i)<0 ? OPJ_D(0) : (UNDERFLOW_SN(i) ? OPJ_D(sn - 1) : OVERFLOW_D(i) ? OPJ_D(i - 1) : OPJ_D(i)))
80
81 /* <summary>                                                              */
82 /* This table contains the norms of the 5-3 wavelets for different bands. */
83@@ -283,7 +288,7 @@ static void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x) {
84 /* <summary>                            */
85 /* Forward 5-3 wavelet transform in 1-D. */
86 /* </summary>                           */
87-static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
88+static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_SIZE_T a_count, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
89 	OPJ_INT32 i;
90
91 	if (!cas) {
92@@ -304,7 +309,7 @@ static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32
93 /* <summary>                            */
94 /* Inverse 5-3 wavelet transform in 1-D. */
95 /* </summary>                           */
96-static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
97+static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_SIZE_T a_count, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
98 	OPJ_INT32 i;
99
100 	if (!cas) {
101@@ -326,13 +331,13 @@ static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT3
102 /* Inverse 5-3 wavelet transform in 1-D. */
103 /* </summary>                           */
104 static void opj_dwt_decode_1(opj_dwt_t *v) {
105-	opj_dwt_decode_1_(v->mem, v->dn, v->sn, v->cas);
106+	opj_dwt_decode_1_(v->mem, v->mem_count, v->dn, v->sn, v->cas);
107 }
108
109 /* <summary>                             */
110 /* Forward 9-7 wavelet transform in 1-D. */
111 /* </summary>                            */
112-static void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
113+static void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_SIZE_T a_count, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
114 	OPJ_INT32 i;
115 	if (!cas) {
116 		if ((dn > 0) || (sn > 1)) {	/* NEW :  CASE ONE ELEMENT */
117@@ -385,7 +390,7 @@ static void opj_dwt_encode_stepsize(OPJ_INT32 stepsize, OPJ_INT32 numbps, opj_st
118 /* <summary>                            */
119 /* Forward 5-3 wavelet transform in 2-D. */
120 /* </summary>                           */
121-static INLINE OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,void (*p_function)(OPJ_INT32 *, OPJ_INT32,OPJ_INT32,OPJ_INT32) )
122+static INLINE OPJ_BOOL opj_dwt_encode_procedure(const opj_tcd_tilecomp_t * tilec, void(*p_function)(OPJ_INT32 *, OPJ_SIZE_T, OPJ_INT32, OPJ_INT32, OPJ_INT32))
123 {
124 	OPJ_INT32 i, j, k;
125 	OPJ_INT32 *a = 00;
126@@ -395,7 +400,8 @@ static INLINE OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,void
127
128 	OPJ_INT32 rw;			/* width of the resolution level computed   */
129 	OPJ_INT32 rh;			/* height of the resolution level computed  */
130-	OPJ_UINT32 l_data_size;
131+	OPJ_SIZE_T l_data_count;
132+	OPJ_SIZE_T l_data_size;
133
134 	opj_tcd_resolution_t * l_cur_res = 0;
135 	opj_tcd_resolution_t * l_last_res = 0;
136@@ -407,8 +413,9 @@ static INLINE OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,void
137 	l_cur_res = tilec->resolutions + l;
138 	l_last_res = l_cur_res - 1;
139
140-	l_data_size = opj_dwt_max_resolution( tilec->resolutions,tilec->numresolutions) * (OPJ_UINT32)sizeof(OPJ_INT32);
141-	bj = (OPJ_INT32*)opj_malloc((size_t)l_data_size);
142+	l_data_count = opj_dwt_max_resolution(tilec->resolutions, tilec->numresolutions) * (OPJ_UINT32)sizeof(OPJ_INT32);
143+	l_data_size = l_data_count * (OPJ_UINT32)sizeof(OPJ_INT32);
144+	bj = (OPJ_INT32*)opj_malloc(l_data_size);
145 	if (! bj) {
146 		return OPJ_FALSE;
147 	}
148@@ -437,7 +444,7 @@ static INLINE OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,void
149 				bj[k] = aj[k*w];
150 			}
151
152-			(*p_function) (bj, dn, sn, cas_col);
153+			(*p_function) (bj, l_data_count, dn, sn, cas_col);
154
155 			opj_dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col);
156 		}
157@@ -448,7 +455,7 @@ static INLINE OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,void
158 		for (j = 0; j < rh; j++) {
159 			aj = a + j * w;
160 			for (k = 0; k < rw; k++)  bj[k] = aj[k];
161-			(*p_function) (bj, dn, sn, cas_row);
162+			(*p_function) (bj, l_data_count, dn, sn, cas_row);
163 			opj_dwt_deinterleave_h(bj, aj, dn, sn, cas_row);
164 		}
165
166@@ -557,7 +564,7 @@ static OPJ_UINT32 opj_dwt_max_resolution(opj_tcd_resolution_t* restrict r, OPJ_U
167 /* <summary>                            */
168 /* Inverse wavelet transform in 2-D.     */
169 /* </summary>                           */
170-static OPJ_BOOL opj_dwt_decode_tile(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres, DWT1DFN dwt_1D) {
171+static OPJ_BOOL opj_dwt_decode_tile(const opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres, DWT1DFN dwt_1D) {
172 	opj_dwt_t h;
173 	opj_dwt_t v;
174
175@@ -568,13 +575,14 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres
176
177 	OPJ_UINT32 w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
178
179-	h.mem = (OPJ_INT32*)
180-	opj_aligned_malloc(opj_dwt_max_resolution(tr, numres) * sizeof(OPJ_INT32));
181+	h.mem_count = opj_dwt_max_resolution(tr, numres);
182+	h.mem = (OPJ_INT32*)opj_aligned_malloc(h.mem_count * sizeof(OPJ_INT32));
183 	if (! h.mem){
184 		/* FIXME event manager error callback */
185 		return OPJ_FALSE;
186 	}
187
188+	v.mem_count = h.mem_count;
189 	v.mem = h.mem;
190
191 	while( --numres) {
192