Misc: Fix font compressor utility warnings. (#5359)

misc/fonts/binary_to_compressed_c.cpp

@@ -66,7 +66,7 @@ int main(int argc, char** argv)
 char Encode85Byte(unsigned int x)
 {
     x = (x % 85) + 35;
-    return (x >= '\\') ? x + 1 : x;
+    return (char)((x >= '\\') ? x + 1 : x);
 }
 
 bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_base85_encoding, bool use_compression, bool use_static)
@@ -263,17 +263,17 @@ static int stb_compress_chunk(stb_uchar *history,
         int best = 2, dist=0;
 
         if (q+65536 > end)
-            match_max = end-q;
+            match_max = (stb_uint)(end-q);
         else
             match_max = 65536;
 
-#define stb__nc(b,d)  ((d) <= window && ((b) > 9 || stb_not_crap(b,d)))
+#define stb__nc(b,d)  ((d) <= window && ((b) > 9 || stb_not_crap((int)(b),(int)(d))))
 
 #define STB__TRY(t,p)  /* avoid retrying a match we already tried */ \
-    if (p ? dist != q-t : 1)                             \
+    if (p ? dist != (int)(q-t) : 1)                             \
     if ((m = stb_matchlen(t, q, match_max)) > best)     \
     if (stb__nc(m,q-(t)))                                \
-    best = m, dist = q - (t)
+    best = m, dist = (int)(q - (t))
 
         // rather than search for all matches, only try 4 candidate locations,
         // chosen based on 4 different hash functions of different lengths.
@@ -299,24 +299,24 @@ static int stb_compress_chunk(stb_uchar *history,
         if (best < 3) { // fast path literals
             ++q;
         } else if (best > 2  &&  best <= 0x80    &&  dist <= 0x100) {
-            outliterals(lit_start, q-lit_start); lit_start = (q += best);
+            outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
             stb_out(0x80 + best-1);
             stb_out(dist-1);
         } else if (best > 5  &&  best <= 0x100   &&  dist <= 0x4000) {
-            outliterals(lit_start, q-lit_start); lit_start = (q += best);
+            outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
             stb_out2(0x4000 + dist-1);
             stb_out(best-1);
         } else if (best > 7  &&  best <= 0x100   &&  dist <= 0x80000) {
-            outliterals(lit_start, q-lit_start); lit_start = (q += best);
+            outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
             stb_out3(0x180000 + dist-1);
             stb_out(best-1);
         } else if (best > 8  &&  best <= 0x10000 &&  dist <= 0x80000) {
-            outliterals(lit_start, q-lit_start); lit_start = (q += best);
+            outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
             stb_out3(0x100000 + dist-1);
             stb_out2(best-1);
         } else if (best > 9                      &&  dist <= 0x1000000) {
             if (best > 65536) best = 65536;
-            outliterals(lit_start, q-lit_start); lit_start = (q += best);
+            outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
             if (best <= 0x100) {
                 stb_out(0x06);
                 stb_out3(dist-1);
@@ -336,10 +336,10 @@ static int stb_compress_chunk(stb_uchar *history,
         q = start+length;
 
     // the literals are everything from lit_start to q
-    *pending_literals = (q - lit_start);
+    *pending_literals = (int)(q - lit_start);
 
-    stb__running_adler = stb_adler32(stb__running_adler, start, q - start);
+    stb__running_adler = stb_adler32(stb__running_adler, start, (stb_uint)(q - start));
-    return q - start;
+    return (int)(q - start);
 }
 
 static int stb_compress_inner(stb_uchar *input, stb_uint length)
@@ -384,5 +384,5 @@ stb_uint stb_compress(stb_uchar *out, stb_uchar *input, stb_uint length)
 
     stb_compress_inner(input, length);
 
-    return stb__out - out;
+    return (stb_uint)(stb__out - out);
 }