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stb
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various warning fixes, STBI_SIMD compile error, incorrect file-pointer state for one API

pull/1/head
Sean Barrett 2014-05-27 12:14:26 -07:00
parent ecff8d5d42
commit 70df4966f0
2 changed files with 61 additions and 38 deletions
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93
stb_image.c
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@ -1,4 +1,4 @@
/* stbi-1.33 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c /* stbi-1.35 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c
when you control the images you're loading when you control the images you're loading
no warranty implied; use at your own risk no warranty implied; use at your own risk
@ -22,6 +22,7 @@
- overridable dequantizing-IDCT, YCbCr-to-RGB conversion (define STBI_SIMD) - overridable dequantizing-IDCT, YCbCr-to-RGB conversion (define STBI_SIMD)
Latest revisions: Latest revisions:
1.35 (2014-05-27) warnings, bugfixes, etc
1.34 (unknown ) warning fix 1.34 (unknown ) warning fix
1.33 (2011-07-14) minor fixes suggested by Dave Moore 1.33 (2011-07-14) minor fixes suggested by Dave Moore
1.32 (2011-07-13) info support for all filetypes (SpartanJ) 1.32 (2011-07-13) info support for all filetypes (SpartanJ)
@ -29,9 +30,6 @@
1.30 (2011-06-11) added ability to load files via io callbacks (Ben Wenger) 1.30 (2011-06-11) added ability to load files via io callbacks (Ben Wenger)
1.29 (2010-08-16) various warning fixes from Aurelien Pocheville 1.29 (2010-08-16) various warning fixes from Aurelien Pocheville
1.28 (2010-08-01) fix bug in GIF palette transparency (SpartanJ) 1.28 (2010-08-01) fix bug in GIF palette transparency (SpartanJ)
1.27 (2010-08-01) cast-to-stbi__uint8 to fix warnings (Laurent Gomila)
allow trailing 0s at end of image data (Laurent Gomila)
1.26 (2010-07-24) fix bug in file buffering for PNG reported by SpartanJ
See end of file for full revision history. See end of file for full revision history.
@ -41,23 +39,26 @@
============================ Contributors ========================= ============================ Contributors =========================
Image formats Optimizations & bugfixes Image formats Bug fixes & warning fixes
Sean Barrett (jpeg, png, bmp) Fabian "ryg" Giesen Sean Barrett (jpeg, png, bmp) Marc LeBlanc
Nicolas Schulz (hdr, psd) Nicolas Schulz (hdr, psd) Christpher Lloyd
Jonathan Dummer (tga) Bug fixes & warning fixes Jonathan Dummer (tga) Dave Moore
Jean-Marc Lienher (gif) Marc LeBlanc Jean-Marc Lienher (gif) Won Chun
Tom Seddon (pic) Christpher Lloyd Tom Seddon (pic) the Horde3D community
Thatcher Ulrich (psd) Dave Moore Thatcher Ulrich (psd) Janez Zemva
Won Chun Jonathan Blow
the Horde3D community Laurent Gomila
Extensions, features Janez Zemva Extensions, features Aruelien Pocheville
Jetro Lauha (stbi_info) Jonathan Blow Jetro Lauha (stbi_info) Ryamond Barbiero
James "moose2000" Brown (iPhone PNG) Laurent Gomila James "moose2000" Brown (iPhone PNG) David Woo
Ben "Disch" Wenger (io callbacks) Aruelien Pocheville Ben "Disch" Wenger (io callbacks) Roy Eltham
Martin "SpartanJ" Golini Ryamond Barbiero Martin "SpartanJ" Golini Luke Graham
David Woo Thomas Ruf
John Bartholomew
Optimizations & bugfixes Ken Hamada
Fabian "ryg" Giesen Cort Stratton
If your name should be here but isn't, let Sean know. If your name should be here but isn't, let Sean know.
*/ */
@ -187,12 +188,13 @@
#ifndef STBI_NO_STDIO #ifndef STBI_NO_STDIO
#if defined(_MSC_VER) && _MSC_VER >= 0x1400 #if defined(_MSC_VER) && _MSC_VER >= 1400
#define _CRT_SECURE_NO_WARNINGS // suppress bogus warnings about fopen() #define _CRT_SECURE_NO_WARNINGS // suppress warnings about fopen()
#pragma warning(push)
#pragma warning(disable:4996) // suppress even more warnings about fopen()
#endif #endif
#include <stdio.h> #include <stdio.h>
#endif #endif // STBI_NO_STDIO
#define STBI_VERSION 1 #define STBI_VERSION 1
@ -232,7 +234,7 @@ extern stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y,
typedef struct typedef struct
{ {
int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read
void (*skip) (void *user,unsigned n); // skip the next 'n' bytes void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative
int (*eof) (void *user); // returns nonzero if we are at end of file/data int (*eof) (void *user); // returns nonzero if we are at end of file/data
} stbi_io_callbacks; } stbi_io_callbacks;
@ -296,6 +298,7 @@ extern void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
// ZLIB client - used by PNG, available for other purposes // ZLIB client - used by PNG, available for other purposes
extern char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); extern char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen);
extern char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header);
extern char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); extern char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen);
extern int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); extern int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
@ -368,11 +371,11 @@ typedef signed int stbi__int32;
// should produce compiler error if size is wrong // should produce compiler error if size is wrong
typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1];
#if defined(STBI_NO_STDIO) && !defined(STBI_NO_WRITE) #ifdef _MSC_VER
#define STBI_NO_WRITE #define STBI_NOTUSED(v) (void)(v)
#endif #else
#define STBI_NOTUSED(v) (void)sizeof(v) #define STBI_NOTUSED(v) (void)sizeof(v)
#endif
#ifdef _MSC_VER #ifdef _MSC_VER
#define STBI_HAS_LROTL #define STBI_HAS_LROTL
@ -436,7 +439,7 @@ static int stdio_read(void *user, char *data, int size)
return (int) fread(data,1,size,(FILE*) user); return (int) fread(data,1,size,(FILE*) user);
} }
static void stdio_skip(void *user, unsigned n) static void stdio_skip(void *user, int n)
{ {
fseek((FILE*) user, n, SEEK_CUR); fseek((FILE*) user, n, SEEK_CUR);
} }
@ -483,8 +486,10 @@ static stbi_uc *stbi_tga_load(stbi *s, int *x, int *y, int *comp, int req_comp);
static int stbi_tga_info(stbi *s, int *x, int *y, int *comp); static int stbi_tga_info(stbi *s, int *x, int *y, int *comp);
static int stbi_psd_test(stbi *s); static int stbi_psd_test(stbi *s);
static stbi_uc *stbi_psd_load(stbi *s, int *x, int *y, int *comp, int req_comp); static stbi_uc *stbi_psd_load(stbi *s, int *x, int *y, int *comp, int req_comp);
#ifndef STBI_NO_HDR
static int stbi_hdr_test(stbi *s); static int stbi_hdr_test(stbi *s);
static float *stbi_hdr_load(stbi *s, int *x, int *y, int *comp, int req_comp); static float *stbi_hdr_load(stbi *s, int *x, int *y, int *comp, int req_comp);
#endif
static int stbi_pic_test(stbi *s); static int stbi_pic_test(stbi *s);
static stbi_uc *stbi_pic_load(stbi *s, int *x, int *y, int *comp, int req_comp); static stbi_uc *stbi_pic_load(stbi *s, int *x, int *y, int *comp, int req_comp);
static int stbi_gif_test(stbi *s); static int stbi_gif_test(stbi *s);
@ -566,9 +571,15 @@ unsigned char *stbi_load(char const *filename, int *x, int *y, int *comp, int re
unsigned char *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) unsigned char *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
{ {
unsigned char *result;
stbi s; stbi s;
start_file(&s,f); start_file(&s,f);
return stbi_load_main(&s,x,y,comp,req_comp); result = stbi_load_main(&s,x,y,comp,req_comp);
if (result) {
// need to 'unget' all the characters in the IO buffer
fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR);
}
return result;
} }
#endif //!STBI_NO_STDIO #endif //!STBI_NO_STDIO
@ -716,9 +727,11 @@ static void refill_buffer(stbi *s)
{ {
int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen);
if (n == 0) { if (n == 0) {
// at end of file, treat same as if from memory // at end of file, treat same as if from memory, but need
// to handle case where s->img_buffer isn't pointing to safe memory
s->read_from_callbacks = 0; s->read_from_callbacks = 0;
s->img_buffer = s->img_buffer_end-1; s->img_buffer = s->buffer_start;
s->img_buffer_end = s->buffer_start+1;
*s->img_buffer = 0; *s->img_buffer = 0;
} else { } else {
s->img_buffer = s->buffer_start; s->img_buffer = s->buffer_start;
@ -757,7 +770,7 @@ stbi_inline static stbi__uint8 get8u(stbi *s)
static void skip(stbi *s, int n) static void skip(stbi *s, int n)
{ {
if (s->io.read) { if (s->io.read) {
int blen = s->img_buffer_end - s->img_buffer; int blen = (int) (s->img_buffer_end - s->img_buffer);
if (blen < n) { if (blen < n) {
s->img_buffer = s->img_buffer_end; s->img_buffer = s->img_buffer_end;
(s->io.skip)(s->io_user_data, n - blen); (s->io.skip)(s->io_user_data, n - blen);
@ -770,7 +783,7 @@ static void skip(stbi *s, int n)
static int getn(stbi *s, stbi_uc *buffer, int n) static int getn(stbi *s, stbi_uc *buffer, int n)
{ {
if (s->io.read) { if (s->io.read) {
int blen = s->img_buffer_end - s->img_buffer; int blen = (int) (s->img_buffer_end - s->img_buffer);
if (blen < n) { if (blen < n) {
int res, count; int res, count;
@ -1879,7 +1892,7 @@ static stbi__uint8 *load_jpeg_image(jpeg *z, int *out_x, int *out_y, int *comp,
stbi__uint8 *y = coutput[0]; stbi__uint8 *y = coutput[0];
if (z->s->img_n == 3) { if (z->s->img_n == 3) {
#ifdef STBI_SIMD #ifdef STBI_SIMD
stbi_YCbCr_installed(out, y, coutput[1], coutput[2], z->s.img_x, n); stbi_YCbCr_installed(out, y, coutput[1], coutput[2], z->s->img_x, n);
#else #else
YCbCr_to_RGB_row(out, y, coutput[1], coutput[2], z->s->img_x, n); YCbCr_to_RGB_row(out, y, coutput[1], coutput[2], z->s->img_x, n);
#endif #endif
@ -4588,9 +4601,17 @@ int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int
#endif // STBI_HEADER_FILE_ONLY #endif // STBI_HEADER_FILE_ONLY
#if !defined(STBI_NO_STDIO) && defined(_MSC_VER) && _MSC_VER >= 1400
#pragma warning(pop)
#endif
/* /*
revision history: revision history:
1.35 (2014-05-27) 1.35 (2014-05-27)
various warnings
fix broken STBI_SIMD path
fix bug where stbi_load_from_file no longer left file pointer in correct place
1.34 (unknown) 1.34 (unknown)
use STBI_NOTUSED in resample_row_generic(), fix one more leak in tga failure case use STBI_NOTUSED in resample_row_generic(), fix one more leak in tga failure case
1.33 (2011-07-14) 1.33 (2011-07-14)

6
stb_image_write.h
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@ -1,4 +1,4 @@
/* stbiw-0.92 - public domain - http://nothings.org/stb/stb_image_write.h /* stbiw-0.93 - public domain - http://nothings.org/stb/stb_image_write.h
writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010 writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010
no warranty implied; use at your own risk no warranty implied; use at your own risk
@ -318,7 +318,7 @@ unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_l
} }
if (bestloc) { if (bestloc) {
int d = data+i - bestloc; // distance back int d = (int) (data+i - bestloc); // distance back
assert(d <= 32767 && best <= 258); assert(d <= 32767 && best <= 258);
for (j=0; best > lengthc[j+1]-1; ++j); for (j=0; best > lengthc[j+1]-1; ++j);
stbi__zlib_huff(j+257); stbi__zlib_huff(j+257);
@ -503,6 +503,8 @@ int stbi_write_png(char const *filename, int x, int y, int comp, const void *dat
/* Revision history /* Revision history
0.93 (2014-05-27)
warning fixes
0.92 (2010-08-01) 0.92 (2010-08-01)
casts to unsigned char to fix warnings casts to unsigned char to fix warnings
0.91 (2010-07-17) 0.91 (2010-07-17)