credits; 1/2/4-bit png fix; easy font spacing; NO_STDIO in image_write

stb_easy_font.h

-// stb_easy_font.h - v0.7 - bitmap font for 3D rendering - public domain
+// stb_easy_font.h - v1.0 - bitmap font for 3D rendering - public domain
 // Sean Barrett, Feb 2015
 //
 //    Easy-to-deploy,
@@ -73,9 +73,14 @@
 //
 // VERSION HISTORY
 //
+//   (2017-01-15)  1.0   space character takes same space as numbers; fix bad spacing of 'f'
 //   (2016-01-22)  0.7   width() supports multiline text; add height()
 //   (2015-09-13)  0.6   #include <math.h>; updated license
 //   (2015-02-01)  0.5   First release
+//
+// CONTRIBUTORS
+//
+//   github:vassvik  --  bug report
 
 #if 0
 // SAMPLE CODE:
@@ -109,7 +114,7 @@ struct {
     unsigned char h_seg;
     unsigned char v_seg;
 } stb_easy_font_charinfo[96] = {
-    {  5,  0,  0 },  {  3,  0,  0 },  {  5,  1,  1 },  {  7,  1,  4 },
+    {  6,  0,  0 },  {  3,  0,  0 },  {  5,  1,  1 },  {  7,  1,  4 },
     {  7,  3,  7 },  {  7,  6, 12 },  {  7,  8, 19 },  {  4, 16, 21 },
     {  4, 17, 22 },  {  4, 19, 23 },  { 23, 21, 24 },  { 23, 22, 31 },
     { 20, 23, 34 },  { 22, 23, 36 },  { 19, 24, 36 },  { 21, 25, 36 },
@@ -126,7 +131,7 @@ struct {
     {  7,109,165 },  {  7,118,167 },  {  6,118,172 },  {  4,120,176 },
     {  6,122,177 },  {  4,122,181 },  { 23,124,182 },  { 22,129,182 },
     {  4,130,182 },  { 22,131,183 },  {  6,133,187 },  { 22,135,191 },
-    {  6,137,192 },  { 22,139,196 },  {  5,144,197 },  { 22,147,198 },
+    {  6,137,192 },  { 22,139,196 },  {  6,144,197 },  { 22,147,198 },
     {  6,150,202 },  { 19,151,206 },  { 21,152,207 },  {  6,155,209 },
     {  3,160,210 },  { 23,160,211 },  { 22,164,216 },  { 22,165,220 },
     { 22,167,224 },  { 22,169,228 },  { 21,171,232 },  { 21,173,233 },

stb_image.h

@@ -192,7 +192,7 @@
     Ryamond Barbiero        Paul Du Bois       Engin Manap        snagar@github
     Michaelangel007@github  Oriol Ferrer Mesia socks-the-fox      Zelex@github
     Philipp Wiesemann       Josh Tobin         rlyeh@github       grim210@github
-    Blazej Dariusz Roszkowski                  
+    Blazej Dariusz Roszkowski                  Dale Weiler
 
 
 LICENSE
@@ -4842,7 +4842,10 @@ static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, st
    void *result=NULL;
    if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
    if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) {
-      ri->bits_per_channel = p->depth;
+      if (p->depth < 8)
+         ri->bits_per_channel = 8;
+      else
+         ri->bits_per_channel = p->depth;
       result = p->out;
       p->out = NULL;
       if (req_comp && req_comp != p->s->img_out_n) {

stb_image_write.h

@@ -103,6 +103,7 @@ CREDITS:
       Jonas Karlsson
       Filip Wasil
       Thatcher Ulrich
+      github:poppolopoppo
       
 LICENSE
 

stb_sprintf.h

@@ -4,6 +4,9 @@
 //
 // allowed types:  sc uidBboXx p AaGgEef n
 // lengths      :  h ll j z t I64 I32 I
+//
+// Contributors (bugfixes):
+//    github:d26435
 
 #ifndef STB_SPRINTF_H_INCLUDE
 #define STB_SPRINTF_H_INCLUDE
@@ -118,16 +121,25 @@ PERFORMANCE vs MSVC 2008 32-/64-bit (GCC is even slower than MSVC):
 "...512 char string..." ( 35.0x/32.5x faster!)
 */
 
+#if defined(__has_feature)
+ #if __has_feature(address_sanitizer)
+  #define STBI__ASAN __attribute__((no_sanitize("address")))
+ #endif
+#endif
+#ifndef STBI__ASAN
+#define STBI__ASAN
+#endif
+
 #ifdef STB_SPRINTF_STATIC
 #define STBSP__PUBLICDEC static
-#define STBSP__PUBLICDEF static
+#define STBSP__PUBLICDEF static STBI__ASAN
 #else
 #ifdef __cplusplus
 #define STBSP__PUBLICDEC extern "C"
-#define STBSP__PUBLICDEF extern "C"
+#define STBSP__PUBLICDEF extern "C" STBI__ASAN
 #else
-#define STBSP__PUBLICDEC extern 
-#define STBSP__PUBLICDEF
+#define STBSP__PUBLICDEC extern
+#define STBSP__PUBLICDEF STBI__ASAN
 #endif
 #endif