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Diffstat (limited to 'Build/source/libs/gd/libgd-2.1.0/src/gdhelpers.h')
-rw-r--r-- | Build/source/libs/gd/libgd-2.1.0/src/gdhelpers.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-2.1.0/src/gdhelpers.h b/Build/source/libs/gd/libgd-2.1.0/src/gdhelpers.h new file mode 100644 index 00000000000..0a5df08dc9f --- /dev/null +++ b/Build/source/libs/gd/libgd-2.1.0/src/gdhelpers.h @@ -0,0 +1,71 @@ +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef GDHELPERS_H +#define GDHELPERS_H 1 + + /* sys/types.h is needed for size_t on Sparc-SunOS-4.1 */ +#ifndef _WIN32_WCE +#include <sys/types.h> +#else +#include <stdlib.h> +#endif /* _WIN32_WCE */ + + /* TBB: strtok_r is not universal; provide an implementation of it. */ + + char * gd_strtok_r (char *s, char *sep, char **state); + + /* These functions wrap memory management. gdFree is + in gd.h, where callers can utilize it to correctly + free memory allocated by these functions with the + right version of free(). */ + void *gdCalloc (size_t nmemb, size_t size); + void *gdMalloc (size_t size); + void *gdRealloc (void *ptr, size_t size); + /* The extended version of gdReallocEx will free *ptr if the + * realloc fails */ + void *gdReallocEx (void *ptr, size_t size); + + /* Returns nonzero if multiplying the two quantities will + result in integer overflow. Also returns nonzero if + either quantity is negative. By Phil Knirsch based on + netpbm fixes by Alan Cox. */ + + int overflow2(int a, int b); + + /* 2.0.16: portable mutex support for thread safety. */ + +#if defined(_WIN32) + /* 2.0.18: must include windows.h to get CRITICAL_SECTION. */ +# include <windows.h> +# define gdMutexDeclare(x) CRITICAL_SECTION x +# define gdMutexSetup(x) InitializeCriticalSection(&x) +# define gdMutexShutdown(x) DeleteCriticalSection(&x) +# define gdMutexLock(x) EnterCriticalSection(&x) +# define gdMutexUnlock(x) LeaveCriticalSection(&x) +#elif defined(HAVE_PTHREAD) +# include <pthread.h> +# define gdMutexDeclare(x) pthread_mutex_t x +# define gdMutexSetup(x) pthread_mutex_init(&x, 0) +# define gdMutexShutdown(x) pthread_mutex_destroy(&x) +# define gdMutexLock(x) pthread_mutex_lock(&x) +# define gdMutexUnlock(x) pthread_mutex_unlock(&x) +#else +# define gdMutexDeclare(x) +# define gdMutexSetup(x) +# define gdMutexShutdown(x) +# define gdMutexLock(x) +# define gdMutexUnlock(x) +#endif /* _WIN32 || HAVE_PTHREAD */ + +#define DPCM2DPI(dpcm) (unsigned int)((dpcm)*2.54 + 0.5) +#define DPM2DPI(dpm) (unsigned int)((dpm)*0.0254 + 0.5) +#define DPI2DPCM(dpi) (unsigned int)((dpi)/2.54 + 0.5) +#define DPI2DPM(dpi) (unsigned int)((dpi)/0.0254 + 0.5) + +#endif /* GDHELPERS_H */ + +#ifdef __cplusplus +} +#endif |