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update stb to latest master Merge commit 'ac7437c89bbd8a6626c9f05548bbddfc1a961793'

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Green Sky 2024-07-18 14:39:09 +02:00
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7 changed files with 362 additions and 116 deletions
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10
external/stb/stb/README.md vendored
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@ -24,10 +24,10 @@ library | lastest version | category | LoC | description
--------------------- | ---- | -------- | --- | -------------------------------- --------------------- | ---- | -------- | --- | --------------------------------
**[stb_vorbis.c](stb_vorbis.c)** | 1.22 | audio | 5584 | decode ogg vorbis files from file/memory to float/16-bit signed output **[stb_vorbis.c](stb_vorbis.c)** | 1.22 | audio | 5584 | decode ogg vorbis files from file/memory to float/16-bit signed output
**[stb_hexwave.h](stb_hexwave.h)** | 0.5 | audio | 680 | audio waveform synthesizer **[stb_hexwave.h](stb_hexwave.h)** | 0.5 | audio | 680 | audio waveform synthesizer
**[stb_image.h](stb_image.h)** | 2.29 | graphics | 7985 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC **[stb_image.h](stb_image.h)** | 2.30 | graphics | 7988 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC
**[stb_truetype.h](stb_truetype.h)** | 1.26 | graphics | 5077 | parse, decode, and rasterize characters from truetype fonts **[stb_truetype.h](stb_truetype.h)** | 1.26 | graphics | 5079 | parse, decode, and rasterize characters from truetype fonts
**[stb_image_write.h](stb_image_write.h)** | 1.16 | graphics | 1724 | image writing to disk: PNG, TGA, BMP **[stb_image_write.h](stb_image_write.h)** | 1.16 | graphics | 1724 | image writing to disk: PNG, TGA, BMP
**[stb_image_resize2.h](stb_image_resize2.h)** | 2.04 | graphics | 10325 | resize images larger/smaller with good quality **[stb_image_resize2.h](stb_image_resize2.h)** | 2.09 | graphics | 10561 | resize images larger/smaller with good quality
**[stb_rect_pack.h](stb_rect_pack.h)** | 1.01 | graphics | 623 | simple 2D rectangle packer with decent quality **[stb_rect_pack.h](stb_rect_pack.h)** | 1.01 | graphics | 623 | simple 2D rectangle packer with decent quality
**[stb_perlin.h](stb_perlin.h)** | 0.5 | graphics | 428 | perlin's revised simplex noise w/ different seeds **[stb_perlin.h](stb_perlin.h)** | 0.5 | graphics | 428 | perlin's revised simplex noise w/ different seeds
**[stb_ds.h](stb_ds.h)** | 0.67 | utility | 1895 | typesafe dynamic array and hash tables for C, will compile in C++ **[stb_ds.h](stb_ds.h)** | 0.67 | utility | 1895 | typesafe dynamic array and hash tables for C, will compile in C++
@ -38,14 +38,14 @@ library | lastest version | category | LoC | description
**[stb_easy_font.h](stb_easy_font.h)** | 1.1 | 3D graphics | 305 | quick-and-dirty easy-to-deploy bitmap font for printing frame rate, etc **[stb_easy_font.h](stb_easy_font.h)** | 1.1 | 3D graphics | 305 | quick-and-dirty easy-to-deploy bitmap font for printing frame rate, etc
**[stb_tilemap_editor.h](stb_tilemap_editor.h)** | 0.42 | game dev | 4187 | embeddable tilemap editor **[stb_tilemap_editor.h](stb_tilemap_editor.h)** | 0.42 | game dev | 4187 | embeddable tilemap editor
**[stb_herringbone_wa...](stb_herringbone_wang_tile.h)** | 0.7 | game dev | 1221 | herringbone Wang tile map generator **[stb_herringbone_wa...](stb_herringbone_wang_tile.h)** | 0.7 | game dev | 1221 | herringbone Wang tile map generator
**[stb_c_lexer.h](stb_c_lexer.h)** | 0.12 | parsing | 940 | simplify writing parsers for C-like languages **[stb_c_lexer.h](stb_c_lexer.h)** | 0.12 | parsing | 941 | simplify writing parsers for C-like languages
**[stb_divide.h](stb_divide.h)** | 0.94 | math | 433 | more useful 32-bit modulus e.g. "euclidean divide" **[stb_divide.h](stb_divide.h)** | 0.94 | math | 433 | more useful 32-bit modulus e.g. "euclidean divide"
**[stb_connected_comp...](stb_connected_components.h)** | 0.96 | misc | 1049 | incrementally compute reachability on grids **[stb_connected_comp...](stb_connected_components.h)** | 0.96 | misc | 1049 | incrementally compute reachability on grids
**[stb_leakcheck.h](stb_leakcheck.h)** | 0.6 | misc | 194 | quick-and-dirty malloc/free leak-checking **[stb_leakcheck.h](stb_leakcheck.h)** | 0.6 | misc | 194 | quick-and-dirty malloc/free leak-checking
**[stb_include.h](stb_include.h)** | 0.02 | misc | 295 | implement recursive #include support, particularly for GLSL **[stb_include.h](stb_include.h)** | 0.02 | misc | 295 | implement recursive #include support, particularly for GLSL
Total libraries: 21 Total libraries: 21
Total lines of C code: 50806 Total lines of C code: 51048
FAQ FAQ

3
external/stb/stb/stb_c_lexer.h vendored
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@ -38,6 +38,7 @@
// Contributors: // Contributors:
// Arpad Goretity (bugfix) // Arpad Goretity (bugfix)
// Alan Hickman (hex floats) // Alan Hickman (hex floats)
// github:mundusnine (bugfix)
// //
// LICENSE // LICENSE
// //
@ -562,7 +563,6 @@ int stb_c_lexer_get_token(stb_lexer *lexer)
{ {
int n = 0; int n = 0;
lexer->string = lexer->string_storage; lexer->string = lexer->string_storage;
lexer->string_len = n;
do { do {
if (n+1 >= lexer->string_storage_len) if (n+1 >= lexer->string_storage_len)
return stb__clex_token(lexer, CLEX_parse_error, p, p+n); return stb__clex_token(lexer, CLEX_parse_error, p, p+n);
@ -576,6 +576,7 @@ int stb_c_lexer_get_token(stb_lexer *lexer)
STB_C_LEX_DOLLAR_IDENTIFIER( || p[n] == '$' ) STB_C_LEX_DOLLAR_IDENTIFIER( || p[n] == '$' )
); );
lexer->string[n] = 0; lexer->string[n] = 0;
lexer->string_len = n;
return stb__clex_token(lexer, CLEX_id, p, p+n-1); return stb__clex_token(lexer, CLEX_id, p, p+n-1);
} }

9
external/stb/stb/stb_image.h vendored
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@ -1,4 +1,4 @@
/* stb_image - v2.29 - public domain image loader - http://nothings.org/stb /* stb_image - v2.30 - public domain image loader - http://nothings.org/stb
no warranty implied; use at your own risk no warranty implied; use at your own risk
Do this: Do this:
@ -48,6 +48,7 @@ LICENSE
RECENT REVISION HISTORY: RECENT REVISION HISTORY:
2.30 (2024-05-31) avoid erroneous gcc warning
2.29 (2023-05-xx) optimizations 2.29 (2023-05-xx) optimizations
2.28 (2023-01-29) many error fixes, security errors, just tons of stuff 2.28 (2023-01-29) many error fixes, security errors, just tons of stuff
2.27 (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes 2.27 (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes
@ -5159,9 +5160,11 @@ static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp)
// non-paletted with tRNS = constant alpha. if header-scanning, we can stop now. // non-paletted with tRNS = constant alpha. if header-scanning, we can stop now.
if (scan == STBI__SCAN_header) { ++s->img_n; return 1; } if (scan == STBI__SCAN_header) { ++s->img_n; return 1; }
if (z->depth == 16) { if (z->depth == 16) {
for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is for (k = 0; k < s->img_n && k < 3; ++k) // extra loop test to suppress false GCC warning
tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is
} else { } else {
for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger for (k = 0; k < s->img_n && k < 3; ++k)
tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger
} }
} }
break; break;

398
external/stb/stb/stb_image_resize2.h vendored
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File diff suppressed because it is too large Load Diff

14
external/stb/stb/stb_truetype.h vendored
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@ -54,7 +54,7 @@
// Hou Qiming Derek Vinyard // Hou Qiming Derek Vinyard
// Rob Loach Cort Stratton // Rob Loach Cort Stratton
// Kenney Phillis Jr. Brian Costabile // Kenney Phillis Jr. Brian Costabile
// Ken Voskuil (kaesve) // Ken Voskuil (kaesve) Yakov Galka
// //
// VERSION HISTORY // VERSION HISTORY
// //
@ -4604,6 +4604,8 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
scale_y = -scale_y; scale_y = -scale_y;
{ {
// distance from singular values (in the same units as the pixel grid)
const float eps = 1./1024, eps2 = eps*eps;
int x,y,i,j; int x,y,i,j;
float *precompute; float *precompute;
stbtt_vertex *verts; stbtt_vertex *verts;
@ -4616,15 +4618,15 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y; float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
float x1 = verts[j].x*scale_x, y1 = verts[j].y*scale_y; float x1 = verts[j].x*scale_x, y1 = verts[j].y*scale_y;
float dist = (float) STBTT_sqrt((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0)); float dist = (float) STBTT_sqrt((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0));
precompute[i] = (dist == 0) ? 0.0f : 1.0f / dist; precompute[i] = (dist < eps) ? 0.0f : 1.0f / dist;
} else if (verts[i].type == STBTT_vcurve) { } else if (verts[i].type == STBTT_vcurve) {
float x2 = verts[j].x *scale_x, y2 = verts[j].y *scale_y; float x2 = verts[j].x *scale_x, y2 = verts[j].y *scale_y;
float x1 = verts[i].cx*scale_x, y1 = verts[i].cy*scale_y; float x1 = verts[i].cx*scale_x, y1 = verts[i].cy*scale_y;
float x0 = verts[i].x *scale_x, y0 = verts[i].y *scale_y; float x0 = verts[i].x *scale_x, y0 = verts[i].y *scale_y;
float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2; float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
float len2 = bx*bx + by*by; float len2 = bx*bx + by*by;
if (len2 != 0.0f) if (len2 >= eps2)
precompute[i] = 1.0f / (bx*bx + by*by); precompute[i] = 1.0f / len2;
else else
precompute[i] = 0.0f; precompute[i] = 0.0f;
} else } else
@ -4689,8 +4691,8 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
float a = 3*(ax*bx + ay*by); float a = 3*(ax*bx + ay*by);
float b = 2*(ax*ax + ay*ay) + (mx*bx+my*by); float b = 2*(ax*ax + ay*ay) + (mx*bx+my*by);
float c = mx*ax+my*ay; float c = mx*ax+my*ay;
if (a == 0.0) { // if a is 0, it's linear if (STBTT_fabs(a) < eps2) { // if a is 0, it's linear
if (b != 0.0) { if (STBTT_fabs(b) >= eps2) {
res[num++] = -c/b; res[num++] = -c/b;
} }
} else { } else {

4
external/stb/stb/tests/stb.dsp vendored
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@ -130,6 +130,10 @@ SOURCE=..\stb_image.h
# End Source File # End Source File
# Begin Source File # Begin Source File
SOURCE=..\stb_image_resize2.h
# End Source File
# Begin Source File
SOURCE=..\stb_image_write.h SOURCE=..\stb_image_write.h
# End Source File # End Source File
# Begin Source File # Begin Source File

2
external/stb/stb/tests/test_vorbis.c vendored
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@ -8,7 +8,7 @@ extern void stb_vorbis_dumpmem(void);
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
size_t memlen; size_t memlen;
unsigned char *mem = stb_fileu("c:/x/sketch008.ogg", &memlen); unsigned char *mem = stb_fileu("../../lib/vorbis/sample/sketch008.ogg", &memlen);
int chan, samplerate; int chan, samplerate;
short *output; short *output;
int samples = stb_vorbis_decode_memory(mem, memlen, &chan, &samplerate, &output); int samples = stb_vorbis_decode_memory(mem, memlen, &chan, &samplerate, &output);