Merge branch 'dev' of github.com:nothings/stb into dev

README.md

@@ -20,6 +20,7 @@ by Jorge L. "VinoBS" Rodriguez, and stb_sprintf by Jeff Roberts.
 
 library    | lastest version | category | LoC | description
 --------------------- | ---- | -------- | --- | --------------------------------
+<<<<<<< HEAD
 **[stb_vorbis.c](stb_vorbis.c)** | 1.21 | audio | 5569 | decode ogg vorbis files from file/memory to float/16-bit signed output
 **[stb_image.h](stb_image.h)** | 2.26 | graphics | 7762 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC, PNM
 **[stb_truetype.h](stb_truetype.h)** | 1.24 | graphics | 5011 | parse, decode, and rasterize characters from truetype fonts

deprecated/stb.h

@@ -9230,6 +9230,7 @@ int stb__wildmatch_raw(char *expr, char *candidate, int search, int insensitive)
       // need to allow for non-writeable strings... assume they're small
       if (s - last < 256) {
          stb_strncpy(buffer, last, (int) (s-last+1));
+         buffer[s-last] = 0;
          z = stb__wildmatch_raw2(buffer, candidate, search, insensitive);
       } else {
          *s = 0;

stb_c_lexer.h

@@ -42,6 +42,7 @@
 //
 //   See end of file for license information.
 
+#ifdef STB_C_LEXER_IMPLEMENTATION
 #ifndef STB_C_LEXER_DEFINITIONS
 // to change the default parsing rules, copy the following lines
 // into your C/C++ file *before* including this, and then replace
@@ -96,6 +97,7 @@
 #define STB_C_LEXER_DEFINITIONS         // This line prevents the header file from replacing your definitions
 // --END--
 
+#endif
 #endif
 
 #ifndef INCLUDE_STB_C_LEXER_H
@@ -608,7 +610,7 @@ int stb_c_lexer_get_token(stb_lexer *lexer)
          // check for EOF
          STB_C_LEX_0_IS_EOF(
             if (*p == 0)
-               return stb__clex_eof(tok);
+               return stb__clex_eof(lexer);
          )
 
       single_char:

stb_ds.h

@@ -381,6 +381,7 @@ CREDITS
     github:srdjanstipic
     Macoy Madson
     Andreas Vennstrom
+    Tobias Mansfield-Williams
 */
 
 #ifdef STBDS_UNIT_TESTS
@@ -542,15 +543,16 @@ extern void * stbds_shmode_func(size_t elemsize, int mode);
 #define stbds_arrput(a,v)      (stbds_arrmaybegrow(a,1), (a)[stbds_header(a)->length++] = (v))
 #define stbds_arrpush          stbds_arrput  // synonym
 #define stbds_arrpop(a)        (stbds_header(a)->length--, (a)[stbds_header(a)->length])
-#define stbds_arraddn(a,n)    ((void)(stbds_arraddnoff(a, n)))    // deprecated, use one of the following instead:
+#define stbds_arraddn(a,n)     ((void)(stbds_arraddnindex(a, n)))    // deprecated, use one of the following instead:
 #define stbds_arraddnptr(a,n)  (stbds_arrmaybegrow(a,n), stbds_header(a)->length += (n), &(a)[stbds_header(a)->length-(n)])
-#define stbds_arraddnoff(a,n) (stbds_arrmaybegrow(a,n), stbds_header(a)->length += (n), stbds_header(a)->length-(n))
+#define stbds_arraddnindex(a,n)(stbds_arrmaybegrow(a,n), stbds_header(a)->length += (n), stbds_header(a)->length-(n))
+#define stbds_arraddnoff       stbds_arraddnindex
 #define stbds_arrlast(a)       ((a)[stbds_header(a)->length-1])
-#define stbds_arrfree(a)      ((void) ((a) ? stbds_arrfreef(a) : (void)0), (a)=NULL)
+#define stbds_arrfree(a)       ((void) ((a) ? STBDS_FREE(NULL,stbds_header(a)) : (void)0), (a)=NULL)
 #define stbds_arrdel(a,i)      stbds_arrdeln(a,i,1)
 #define stbds_arrdeln(a,i,n)   (memmove(&(a)[i], &(a)[(i)+(n)], sizeof *(a) * (stbds_header(a)->length-(n)-(i))), stbds_header(a)->length -= (n))
 #define stbds_arrdelswap(a,i)  ((a)[i] = stbds_arrlast(a), stbds_header(a)->length -= 1)
-#define stbds_arrinsn(a,i,n)  ((a)?stbds_temp(a)=(i):0,stbds_arraddn((a),(n)), memmove(&(a)[stbds_temp(a)+(n)], &(a)[stbds_temp(a)], sizeof *(a) * (stbds_header(a)->length-(n)-stbds_temp(a))))
+#define stbds_arrinsn(a,i,n)   (stbds_arraddn((a),(n)), memmove(&(a)[(i)+(n)], &(a)[i], sizeof *(a) * (stbds_header(a)->length-(n)-(i))))
 #define stbds_arrins(a,i,v)    (stbds_arrinsn((a),(i),1), (a)[i]=(v))
 
 #define stbds_arrmaybegrow(a,n)  ((!(a) || stbds_header(a)->length + (n) > stbds_header(a)->capacity) \

stb_image.h

@@ -7529,7 +7529,6 @@ static int stbi__pnm_is16(stbi__context *s)
 	   return 1;
    return 0;
 }
-
 #endif
 
 static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp)

stb_truetype.h

@@ -4587,18 +4587,17 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
             for (i=0; i < num_verts; ++i) {
                float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
 
-               // check against every point here rather than inside line/curve primitives -- @TODO: wrong if multiple 'moves' in a row produce a garbage point, and given culling, probably more efficient to do within line/curve
+               if (verts[i].type == STBTT_vline && precompute[i] != 0.0f) {
-               float dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
+                  float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
+
+                  float dist,dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
                   if (dist2 < min_dist*min_dist)
                      min_dist = (float) STBTT_sqrt(dist2);
 
-               if (verts[i].type == STBTT_vline) {
-                  float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
-
                   // coarse culling against bbox
                   //if (sx > STBTT_min(x0,x1)-min_dist && sx < STBTT_max(x0,x1)+min_dist &&
                   //    sy > STBTT_min(y0,y1)-min_dist && sy < STBTT_max(y0,y1)+min_dist)
-                  float dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
+                  dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
                   STBTT_assert(i != 0);
                   if (dist < min_dist) {
                      // check position along line
@@ -4625,7 +4624,7 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
                      float ax = x1-x0, ay = y1-y0;
                      float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
                      float mx = x0 - sx, my = y0 - sy;
-                     float res[3],px,py,t,it;
+                     float res[3],px,py,t,it,dist2;
                      float a_inv = precompute[i];
                      if (a_inv == 0.0) { // if a_inv is 0, it's 2nd degree so use quadratic formula
                         float a = 3*(ax*bx + ay*by);
@@ -4652,6 +4651,10 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
                         float d = (mx*ax+my*ay) * a_inv;
                         num = stbtt__solve_cubic(b, c, d, res);
                      }
+                     dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
+                     if (dist2 < min_dist*min_dist)
+                        min_dist = (float) STBTT_sqrt(dist2);
+
                      if (num >= 1 && res[0] >= 0.0f && res[0] <= 1.0f) {
                         t = res[0], it = 1.0f - t;
                         px = it*it*x0 + 2*t*it*x1 + t*t*x2;

tests/test_cpp_compilation.cpp

@@ -7,7 +7,6 @@
 #include "stb_image_write.h"
 #include "stb_perlin.h"
 #include "stb_dxt.h"
-#include "stb_c_lexer.h"
 #include "stb_divide.h"
 #include "stb_herringbone_wang_tile.h"
 #include "stb_ds.h"
@@ -183,3 +182,51 @@ void dummy3(void)
   stb_textedit_initialize_state(0,0);
   stb_textedit_paste(0,0,0,0);
 }
+
+#define STB_C_LEX_C_DECIMAL_INTS    Y   //  "0|[1-9][0-9]*"                        CLEX_intlit
+#define STB_C_LEX_C_HEX_INTS        Y   //  "0x[0-9a-fA-F]+"                       CLEX_intlit
+#define STB_C_LEX_C_OCTAL_INTS      Y   //  "[0-7]+"                               CLEX_intlit
+#define STB_C_LEX_C_DECIMAL_FLOATS  Y   //  "[0-9]*(.[0-9]*([eE][-+]?[0-9]+)?)     CLEX_floatlit
+#define STB_C_LEX_C99_HEX_FLOATS    N   //  "0x{hex}+(.{hex}*)?[pP][-+]?{hex}+     CLEX_floatlit
+#define STB_C_LEX_C_IDENTIFIERS     Y   //  "[_a-zA-Z][_a-zA-Z0-9]*"               CLEX_id
+#define STB_C_LEX_C_DQ_STRINGS      Y   //  double-quote-delimited strings with escapes  CLEX_dqstring
+#define STB_C_LEX_C_SQ_STRINGS      N   //  single-quote-delimited strings with escapes  CLEX_ssstring
+#define STB_C_LEX_C_CHARS           Y   //  single-quote-delimited character with escape CLEX_charlits
+#define STB_C_LEX_C_COMMENTS        Y   //  "/* comment */"
+#define STB_C_LEX_CPP_COMMENTS      Y   //  "// comment to end of line\n"
+#define STB_C_LEX_C_COMPARISONS     Y   //  "==" CLEX_eq  "!=" CLEX_noteq   "<=" CLEX_lesseq  ">=" CLEX_greatereq
+#define STB_C_LEX_C_LOGICAL         Y   //  "&&"  CLEX_andand   "||"  CLEX_oror
+#define STB_C_LEX_C_SHIFTS          Y   //  "<<"  CLEX_shl      ">>"  CLEX_shr
+#define STB_C_LEX_C_INCREMENTS      Y   //  "++"  CLEX_plusplus "--"  CLEX_minusminus
+#define STB_C_LEX_C_ARROW           Y   //  "->"  CLEX_arrow
+#define STB_C_LEX_EQUAL_ARROW       N   //  "=>"  CLEX_eqarrow
+#define STB_C_LEX_C_BITWISEEQ       Y   //  "&="  CLEX_andeq    "|="  CLEX_oreq     "^="  CLEX_xoreq
+#define STB_C_LEX_C_ARITHEQ         Y   //  "+="  CLEX_pluseq   "-="  CLEX_minuseq
+                                        //  "*="  CLEX_muleq    "/="  CLEX_diveq    "%=" CLEX_modeq
+                                        //  if both STB_C_LEX_SHIFTS & STB_C_LEX_ARITHEQ:
+                                        //                      "<<=" CLEX_shleq    ">>=" CLEX_shreq
+
+#define STB_C_LEX_PARSE_SUFFIXES    N   // letters after numbers are parsed as part of those numbers, and must be in suffix list below
+#define STB_C_LEX_DECIMAL_SUFFIXES  ""  // decimal integer suffixes e.g. "uUlL" -- these are returned as-is in string storage
+#define STB_C_LEX_HEX_SUFFIXES      ""  // e.g. "uUlL"
+#define STB_C_LEX_OCTAL_SUFFIXES    ""  // e.g. "uUlL"
+#define STB_C_LEX_FLOAT_SUFFIXES    ""  //
+
+#define STB_C_LEX_0_IS_EOF             Y  // if Y, ends parsing at '\0'; if N, returns '\0' as token
+#define STB_C_LEX_INTEGERS_AS_DOUBLES  N  // parses integers as doubles so they can be larger than 'int', but only if STB_C_LEX_STDLIB==N
+#define STB_C_LEX_MULTILINE_DSTRINGS   N  // allow newlines in double-quoted strings
+#define STB_C_LEX_MULTILINE_SSTRINGS   N  // allow newlines in single-quoted strings
+#define STB_C_LEX_USE_STDLIB           Y  // use strtod,strtol for parsing #s; otherwise inaccurate hack
+#define STB_C_LEX_DOLLAR_IDENTIFIER    Y  // allow $ as an identifier character
+#define STB_C_LEX_FLOAT_NO_DECIMAL     Y  // allow floats that have no decimal point if they have an exponent
+
+#define STB_C_LEX_DEFINE_ALL_TOKEN_NAMES  N   // if Y, all CLEX_ token names are defined, even if never returned
+                                              // leaving it as N should help you catch config bugs
+
+#define STB_C_LEX_DISCARD_PREPROCESSOR    Y   // discard C-preprocessor directives (e.g. after prepocess
+                                              // still have #line, #pragma, etc)
+
+//#define STB_C_LEX_ISWHITE(str)    ... // return length in bytes of whitespace characters if first char is whitespace
+
+#define STB_C_LEXER_DEFINITIONS         // This line prevents the header file from replacing your definitions
+#include "stb_c_lexer.h"

tests/test_truetype.c

@@ -42,9 +42,13 @@ int main(int argc, char **argv)
    //debug();
 
    // @TODO: why is minglui.ttc failing? 
-   fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/mingliu.ttc", "rb"));
+   //fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/mingliu.ttc", "rb"));
 
-   //fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/x/DroidSansMono.ttf", "rb"));
+   fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/DejaVuSans.ttf", "rb"));
+
+   stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
+
+#if 0
    {
       static stbtt_pack_context pc;
       static stbtt_packedchar cd[256];
@@ -54,6 +58,27 @@ int main(int argc, char **argv)
       stbtt_PackFontRange(&pc, ttf_buffer, 0, 32.0, 0, 256, cd);
       stbtt_PackEnd(&pc);
    }
+#endif
+
+   {
+      static stbtt_pack_context pc;
+      static stbtt_packedchar cd[256];
+      static unsigned char atlas[1024*1024];
+      unsigned char *data;
+
+      stbtt_PackBegin(&pc, atlas, 1024,1024,1024,1,NULL);
+      stbtt_PackFontRange(&pc, ttf_buffer, 0, 32.0, 'u', 1, cd);
+      stbtt_PackEnd(&pc);
+
+      data = stbtt_GetCodepointSDF(&font, stbtt_ScaleForPixelHeight(&font,32.0), 'u', 4, 128, 128/4, &w,&h,&i,&j);
+      for (j=0; j < h; ++j) {
+         for (i=0; i < w; ++i) {
+            putchar(" .:ioVM@"[data[j*w+i]>>5]);
+         }
+         putchar('\n');
+      }
+      return 0;
+   }
 
 #if 0
    stbtt_BakeFontBitmap(ttf_buffer,stbtt_GetFontOffsetForIndex(ttf_buffer,0), 40.0, temp_bitmap[0],BITMAP_W,BITMAP_H, 32,96, cdata); // no guarantee this fits!
@@ -92,7 +117,6 @@ int main(int argc, char **argv)
    return 0;
 #endif
 
-   stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
    bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, (float)s), c, &w, &h, 0,0);
 
    for (j=0; j < h; ++j) {