Squashed 'external/stb/stb/' changes from f4a71b13373..f7f20f39fe4
f7f20f39fe4 update README 8503b888748 Merge branch 'resize_latest' of https://github.com/jeffrbig2/stb into working 6e9f34d5429 Merge branch 'master' into working 2a584248766 2.09 resize - fix defines for GCC arm 32 013ac3beddf stb_image: fix gcc bounds-check warning (believed erroneous) 449758bd74c update stb_image_resize2.h 43201e7788f image resize 2.07 ae721c50eaf Merge pull request #1609 from jeffrbig2/fix_coeffs 2fb057af65b remove test 1828f357dc8 Fix bug in coeff generation on more than 3x downsamples with width and height scale equal b7cf1246284 stb_image: fix VC6 c59da6729e0 Mark row0 as unused 7f7e3469cf2 clean up comments 7a075fe7c79 Fix 2 pixel to 1 pixel with wrap Fix output buffer for output callback 177b6c6d9d5 Merge branch 'patch-1' of https://github.com/mundusnine/stb into working 2a74e27bdc4 Merge branch 'floatfix' of https://github.com/ybungalobill/stb into working c497f727861 Merge branch 'dev' into working aac5e88febc Add contributor 84fa046c7c9 Fix custom types having a string_len of 0(always) b1947dd6cfb pre-C99; decrease epsilon d84b174fd35 add self d7a44685a82 use STBTT_fabs 7e2ade58ea2 stb_truetype -- fix floating point comparison against zero by using a correct epsilon git-subtree-dir: external/stb/stb git-subtree-split: f7f20f39fe4f206c6f19e26ebfef7b261ee59ee4
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README.md
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README.md
@ -24,10 +24,10 @@ library | lastest version | category | LoC | description
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--------------------- | ---- | -------- | --- | --------------------------------
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**[stb_vorbis.c](stb_vorbis.c)** | 1.22 | audio | 5584 | decode ogg vorbis files from file/memory to float/16-bit signed output
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**[stb_hexwave.h](stb_hexwave.h)** | 0.5 | audio | 680 | audio waveform synthesizer
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**[stb_image.h](stb_image.h)** | 2.29 | graphics | 7985 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC
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**[stb_truetype.h](stb_truetype.h)** | 1.26 | graphics | 5077 | parse, decode, and rasterize characters from truetype fonts
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**[stb_image.h](stb_image.h)** | 2.30 | graphics | 7988 | image loading/decoding from file/memory: JPG, PNG, TGA, BMP, PSD, GIF, HDR, PIC
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**[stb_truetype.h](stb_truetype.h)** | 1.26 | graphics | 5079 | parse, decode, and rasterize characters from truetype fonts
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**[stb_image_write.h](stb_image_write.h)** | 1.16 | graphics | 1724 | image writing to disk: PNG, TGA, BMP
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**[stb_image_resize2.h](stb_image_resize2.h)** | 2.04 | graphics | 10325 | resize images larger/smaller with good quality
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**[stb_image_resize2.h](stb_image_resize2.h)** | 2.09 | graphics | 10561 | resize images larger/smaller with good quality
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**[stb_rect_pack.h](stb_rect_pack.h)** | 1.01 | graphics | 623 | simple 2D rectangle packer with decent quality
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**[stb_perlin.h](stb_perlin.h)** | 0.5 | graphics | 428 | perlin's revised simplex noise w/ different seeds
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**[stb_ds.h](stb_ds.h)** | 0.67 | utility | 1895 | typesafe dynamic array and hash tables for C, will compile in C++
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@ -38,14 +38,14 @@ library | lastest version | category | LoC | description
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**[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
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**[stb_tilemap_editor.h](stb_tilemap_editor.h)** | 0.42 | game dev | 4187 | embeddable tilemap editor
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**[stb_herringbone_wa...](stb_herringbone_wang_tile.h)** | 0.7 | game dev | 1221 | herringbone Wang tile map generator
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**[stb_c_lexer.h](stb_c_lexer.h)** | 0.12 | parsing | 940 | simplify writing parsers for C-like languages
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**[stb_c_lexer.h](stb_c_lexer.h)** | 0.12 | parsing | 941 | simplify writing parsers for C-like languages
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**[stb_divide.h](stb_divide.h)** | 0.94 | math | 433 | more useful 32-bit modulus e.g. "euclidean divide"
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**[stb_connected_comp...](stb_connected_components.h)** | 0.96 | misc | 1049 | incrementally compute reachability on grids
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**[stb_leakcheck.h](stb_leakcheck.h)** | 0.6 | misc | 194 | quick-and-dirty malloc/free leak-checking
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**[stb_include.h](stb_include.h)** | 0.02 | misc | 295 | implement recursive #include support, particularly for GLSL
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Total libraries: 21
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Total lines of C code: 50806
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Total lines of C code: 51048
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FAQ
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@ -38,6 +38,7 @@
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// Contributors:
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// Arpad Goretity (bugfix)
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// Alan Hickman (hex floats)
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// github:mundusnine (bugfix)
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//
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// LICENSE
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//
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@ -562,7 +563,6 @@ int stb_c_lexer_get_token(stb_lexer *lexer)
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{
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int n = 0;
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lexer->string = lexer->string_storage;
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lexer->string_len = n;
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do {
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if (n+1 >= lexer->string_storage_len)
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return stb__clex_token(lexer, CLEX_parse_error, p, p+n);
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@ -576,6 +576,7 @@ int stb_c_lexer_get_token(stb_lexer *lexer)
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STB_C_LEX_DOLLAR_IDENTIFIER( || p[n] == '$' )
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);
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lexer->string[n] = 0;
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lexer->string_len = n;
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return stb__clex_token(lexer, CLEX_id, p, p+n-1);
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}
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@ -1,4 +1,4 @@
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/* stb_image - v2.29 - public domain image loader - http://nothings.org/stb
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/* stb_image - v2.30 - public domain image loader - http://nothings.org/stb
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no warranty implied; use at your own risk
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Do this:
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@ -48,6 +48,7 @@ LICENSE
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RECENT REVISION HISTORY:
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2.30 (2024-05-31) avoid erroneous gcc warning
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2.29 (2023-05-xx) optimizations
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2.28 (2023-01-29) many error fixes, security errors, just tons of stuff
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2.27 (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes
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@ -5159,9 +5160,11 @@ static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp)
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// non-paletted with tRNS = constant alpha. if header-scanning, we can stop now.
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if (scan == STBI__SCAN_header) { ++s->img_n; return 1; }
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if (z->depth == 16) {
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for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is
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for (k = 0; k < s->img_n && k < 3; ++k) // extra loop test to suppress false GCC warning
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tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is
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} else {
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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
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for (k = 0; k < s->img_n && k < 3; ++k)
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tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger
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}
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}
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break;
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File diff suppressed because it is too large
Load Diff
@ -54,7 +54,7 @@
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// Hou Qiming Derek Vinyard
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// Rob Loach Cort Stratton
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// Kenney Phillis Jr. Brian Costabile
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// Ken Voskuil (kaesve)
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// Ken Voskuil (kaesve) Yakov Galka
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//
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// VERSION HISTORY
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//
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@ -4604,6 +4604,8 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
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scale_y = -scale_y;
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{
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// distance from singular values (in the same units as the pixel grid)
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const float eps = 1./1024, eps2 = eps*eps;
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int x,y,i,j;
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float *precompute;
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stbtt_vertex *verts;
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@ -4616,15 +4618,15 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
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float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
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float x1 = verts[j].x*scale_x, y1 = verts[j].y*scale_y;
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float dist = (float) STBTT_sqrt((x1-x0)*(x1-x0) + (y1-y0)*(y1-y0));
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precompute[i] = (dist == 0) ? 0.0f : 1.0f / dist;
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precompute[i] = (dist < eps) ? 0.0f : 1.0f / dist;
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} else if (verts[i].type == STBTT_vcurve) {
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float x2 = verts[j].x *scale_x, y2 = verts[j].y *scale_y;
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float x1 = verts[i].cx*scale_x, y1 = verts[i].cy*scale_y;
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float x0 = verts[i].x *scale_x, y0 = verts[i].y *scale_y;
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float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
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float len2 = bx*bx + by*by;
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if (len2 != 0.0f)
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precompute[i] = 1.0f / (bx*bx + by*by);
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if (len2 >= eps2)
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precompute[i] = 1.0f / len2;
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else
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precompute[i] = 0.0f;
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} else
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@ -4689,8 +4691,8 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
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float a = 3*(ax*bx + ay*by);
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float b = 2*(ax*ax + ay*ay) + (mx*bx+my*by);
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float c = mx*ax+my*ay;
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if (a == 0.0) { // if a is 0, it's linear
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if (b != 0.0) {
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if (STBTT_fabs(a) < eps2) { // if a is 0, it's linear
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if (STBTT_fabs(b) >= eps2) {
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res[num++] = -c/b;
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}
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} else {
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@ -130,6 +130,10 @@ SOURCE=..\stb_image.h
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# End Source File
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# Begin Source File
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SOURCE=..\stb_image_resize2.h
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# End Source File
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# Begin Source File
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SOURCE=..\stb_image_write.h
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# End Source File
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# Begin Source File
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@ -8,7 +8,7 @@ extern void stb_vorbis_dumpmem(void);
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int main(int argc, char **argv)
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{
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size_t memlen;
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unsigned char *mem = stb_fileu("c:/x/sketch008.ogg", &memlen);
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unsigned char *mem = stb_fileu("../../lib/vorbis/sample/sketch008.ogg", &memlen);
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int chan, samplerate;
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short *output;
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int samples = stb_vorbis_decode_memory(mem, memlen, &chan, &samplerate, &output);
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