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74 commits

Author SHA1 Message Date
Sam Lantinga 650964461e Improved XInput VID/PID detection and added SDL_wcsstr() and SDL_wcsncmp() 2019-11-20 16:42:50 -08:00
Ozkan Sezer eb8f14bb6a added SDL_strtokr() as a replacement for POSIX strtok_r (bug #4046.) 2019-11-20 20:40:50 +03:00
Ozkan Sezer fea3c8bdef SDL_qsort.c: sync comments with version 1.15 from mainstream 2019-10-31 17:10:02 +03:00
Sylvain Becker b458d7a28f Readability: remove redundant cast to the same type 2019-10-30 15:13:55 +01:00
Ryan C. Gordon 4001e6b351 stdlib: Patched to compile. 2019-09-26 13:44:49 -04:00
Ryan C. Gordon 987aa3113c stdlib: Try to coerce VS2019 to not replace some loops with memset() calls. 
Fixes (?) Bugzilla #4759.
 2019-09-26 12:55:05 -04:00
Ozkan Sezer 2ea0ec6207 better readability.. 2019-07-31 00:07:15 +03:00
Ozkan Sezer 5f04ed5fbd SDL_iconv_string: add (char*) casts before SDL_malloc() calls. 2019-07-31 00:06:50 +03:00
Cameron Cawley e7b514d8ff riscos: Fix iconv warnings 2019-01-13 23:36:31 +00:00
Sam Lantinga 5e13087b0f Updated copyright for 2019 2019-01-04 22:01:14 -08:00
Ozkan Sezer d3fa42b8c4 os/2 bits for SDL_malloc.c -- from libffi 2018-11-18 19:28:20 +03:00
Sam Lantinga 9e8e0fb7b1 Fixed bug 4283 - SDL's version of memset is different from libc's 
janisozaur

memset's documentation reads:

* The memset() function shall copy c (converted to an unsigned char) into each of the first n bytes of the object pointed to by s. (http://pubs.opengroup.org/onlinepubs/9699919799/functions/memset.html)
* Sets the first count characters of dest to the character c. (https://msdn.microsoft.com/en-us/library/1fdeehz6.aspx)
* write a byte to a byte string (https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/memset.3.html)

The highlight here is they all mean a single _byte_, even though memset receives a parameter of type int, which can hold more data than a single byte. SDL's implementation of memset, however, does not clear any of the higher bits, causing an erroneous behaviour when passed an argument bigger than 0xff.
 2018-09-28 20:48:18 -07:00
Ozkan Sezer 31596f23ce SDL_vsnprintf: implemented '+' flag for signed integers printing. 
it is, of course, ignored for %u, %x, %o and %p.
 2018-09-29 01:24:10 +03:00
Ozkan Sezer 49803c8660 SDL_vsnprintf: fix numerics if both zero-padding and a field are given. 
it used to place zeroes between the sign and the number. (space-padding
from within SDL_PrintString() seems OK:  spaces are added before sign.)

also fixed the maxlen handling if the number has a sign.
 2018-09-29 00:51:24 +03:00
Ozkan Sezer bb5516ac8e SDL_vsnprintf() updates for zero-padding: 
- remove force-enabling of pad_zeroes for %u for compatibility
 (was added in https://hg.libsdl.org/SDL/rev/701f4a25df89)
- ignore pad_zeroes for %s and %S
- ignore pad_zeroes for %d, %i and %u if a precision is given
 2018-09-27 09:37:36 +03:00
Ozkan Sezer 6eeb8593ba SDL_string.c (SDL_PrintString): avoid MSVC signed/unsigned mismatch warning 2018-09-27 01:10:50 +03:00
Ozkan Sezer 5342ae2bba SDL_string.c (SDL_IntPrecisionAdjust): avoid MSVC generating a memset() 2018-09-27 01:00:50 +03:00
Ozkan Sezer d2131ac165 SDL_vsnprintf: implement precision for the integral value printers. 2018-09-27 00:32:15 +03:00
Ozkan Sezer ffc19ee255 SDL_string.c: added comments to three SDL_FormatInfo members. 2018-09-26 20:47:34 +03:00
Ozkan Sezer 8743e9759e SDL_vsnprintf: when '.' is specified, take precision as 0 if it is < 0. 2018-09-26 17:11:40 +03:00
Ozkan Sezer 69ab8541a9 SDL_vsnprintf: string printer now honors the precision. (bug #4263.) 2018-09-26 10:40:02 +03:00
Ozkan Sezer d0e9a36460 SDL_vsnprintf: %.* and %* now parse precision and width. (bug #4263.) 2018-09-26 10:38:40 +03:00
Sam Lantinga 5febdfcece Fixed whitespace 2018-09-24 11:49:25 -07:00
Sam Lantinga d2042e1ed4 Added HIDAPI joystick drivers for more consistent support for Xbox, PS4 and Nintendo Switch Pro controller support across platforms. 
Added SDL_GameControllerRumble() and SDL_JoystickRumble() for simple force feedback outside of the SDL haptics API
 2018-08-09 16:00:17 -07:00
Ozkan Sezer f45f33bdc0 SDL_expf: return SDL_exp() instead of SDL_uclibc_exp() for consistency. 2018-08-05 10:01:01 +03:00
Ethan Lee b4fe7412f9 SDL_exp 2018-08-04 11:52:46 -04:00
Ozkan Sezer 652d59fb3b make sure SDL_vsnprintf() nul terminates if it is using _vsnprintf 
The change makes sure that SDL_vsnprintf() nul terminates if it is
using _vsnprintf() for the job.

I made this patch for Watcom, whose _vsnprintf() doesn't guarantee
nul termination.  The preprocessor check can be extended to windows
in general too, if required.

Closes bug #3769.
 2018-05-10 09:02:39 +03:00
Sam Lantinga 3b4c2fdf5d Fixed bug 3947 - replace strlcpy with memcpy in SDL_strdup() 2018-02-13 08:13:29 -08:00
Ethan Lee 11c348b4d7 SDL_log10 2018-01-17 11:53:09 -05:00
Sam Lantinga e3cc5b2c6b Updated copyright for 2018 2018-01-03 10:03:25 -08:00
Sam Lantinga bcdf8b916b Added SDL_fmod() and SDL_fmodf() 2017-11-04 17:35:03 -07:00
Sam Lantinga 34502143d9 Added float versions of SDL's math functions 2017-11-04 15:34:14 -07:00
Sam Lantinga 758156a765 Fixed bug 3917 - Android, issues with getManifestEnvironmentVariable 
We're going to push the manifest environment variables from the Java side instead of continually querying for them from the native side.
 2017-11-04 09:37:29 -07:00
Sam Lantinga 8fd0c22adc Added the ability to set SDL hints from AndroidManifest.xml (thanks Rachel!) 
This is especially useful for things like the accelerometer hint which could be needed before application main().
 2017-10-24 00:17:07 -07:00
Sam Lantinga fc60db86b3 Fixed compiler warning 2017-10-12 17:17:09 -07:00
Sam Lantinga 21cd2df694 Fixed compiler warning 2017-10-12 14:02:24 -07:00
Sam Lantinga 9c580e14c9 Added functions to query and set the SDL memory allocation functions: 
SDL_GetMemoryFunctions()
    SDL_SetMemoryFunctions()
    SDL_GetNumAllocations()
 2017-10-12 13:44:28 -07:00
Ozkan Sezer bef0fec121 make sure that SDL_malloc(0) or SDL_calloc(0,x) doesn't return NULL. 2017-10-12 14:28:05 +03:00
Sam Lantinga 19114b0378 Fixed bug 3813 - gcc7 fallthrough warnings in SDL_iconv.c and SDL_pixels.c 2017-09-10 12:42:38 -07:00
Sam Lantinga 8ed16ea465 Fixed compile warning 2017-09-10 10:43:04 -07:00
Sam Lantinga 1b2492ed8a Fixed 64-bit build warning 2017-09-08 15:08:03 -07:00
Sam Lantinga c1fd0fbb32 Fixed compiler warning with mingw-w64 2017-09-04 22:14:57 -07:00
Ryan C. Gordon ae667da638 Fixed a bunch of compiler warnings. 2017-08-29 15:52:49 -04:00
Ryan C. Gordon 620f5342b5 stdlib: An implementation of SDL_scalbn using ldexp() (thanks, Ozkan!). 
Fixes Bugzilla #3767.
 2017-08-29 00:36:17 -04:00
Sam Lantinga fcf83e7908 Fixed bug 3768 - provide a quick copysign() solution for watcom 
Ozkan Sezer

The following patch provides a quick copysign solution for Watcom/x86
 2017-08-21 16:30:24 -07:00
Sam Lantinga f1829d956f Added SDL_wcscmp() 2017-08-13 20:37:49 -07:00
Sam Lantinga affab6ade5 More fixes for the SDL_scanf code 2017-08-12 00:01:24 -07:00
Sam Lantinga b5ea3c6d07 Fixed bug 3284 - minor correction for SDL_setenv on _WIN32__ platform 
Coriiander

Here is a minor correction for a non-breaking mistake in SDL_setenv for __WIN32__ platform. See below for details.

FILE:
"SDL/src/stdlib/SDL_getenv.c"

FUNCTION: (__WIN32__ platform)
int SDL_setenv(const char *name, const char *value, int overwrite)

CODE:
    if (!overwrite) {
        char ch = 0;
        const size_t len = GetEnvironmentVariableA(name, &ch, sizeof (ch));
        if (len > 0) {
            return 0;  /* asked not to overwrite existing value. */
        }
    }


WHAT'S WRONG:
The 3th argument to GetEnvironmentVariable (being DWORD nSize) must be the number of characters, not the number of bytes. SDL currently passes "the size of 1 char", rather "1". While it is non-breaking (1=1 after all), it is incorrect. Furthermore there is no need to specify the 2nd and 3th arguments at all.

CORRECTION 1: (corrected argument_
    if (!overwrite) {
        char ch = 0;
        const size_t len = GetEnvironmentVariableA(name, &ch, 1);
        if (len > 0) {
            return 0;  /* asked not to overwrite existing value. */
        }
    }

CORRECTION 2: (stripped of unneeded code)
    if (!overwrite) {
        if (GetEnvironmentVariableA(name, NULL, 0) > 0) {
            return 0;  /* asked not to overwrite existing value. */
        }
    }
 2017-08-11 21:30:06 -07:00
Sam Lantinga 441d9ba2b0 Fixed bug 3341 - SDL_sscanf() problem 
e_pluschauskas

Why does SDL_sscanf() always returns the number of format specifiers and doesn't implements standard C library behavior?
 2017-08-11 19:36:12 -07:00
Ryan C. Gordon 29a047df39 Fixed whitespace code style. 2017-05-29 00:51:38 -04:00