gloam 0.1.4

Loader generator for Vulkan, OpenGL, OpenGL ES, EGL, GLX, and WGL
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#ifndef GLOAM_IMPL_UTIL_C_
#define GLOAM_IMPL_UTIL_C_

/* MSVC vs GCC/Clang sscanf */
#ifdef _MSC_VER
#  define GLOAM_IMPL_UTIL_SSCANF sscanf_s
#else
#  define GLOAM_IMPL_UTIL_SSCANF sscanf
#endif

/* GLOAM_NO_INLINE — suppress inlining on functions that should stay out of
   the hot path (sort, hash, etc.) to avoid code bloat at call sites. */
#ifdef _MSC_VER
#  define GLOAM_NO_INLINE __declspec(noinline)
#else
#  define GLOAM_NO_INLINE __attribute__((noinline))
#endif

#define GLOAM_ARRAYSIZE(x) (sizeof(x) / sizeof((x)[0]))
#define GLOAM_UNUSED(x)    ((void)(x))

/* Opaque function pointer type — the common return type for all load
   callbacks.  Callers cast to the specific PFN type they need. */
typedef void (*GloamAPIProc)(void);

/* Load function pointer type: plain proc-addr callback (GL / EGL / GLX / WGL). */
typedef GloamAPIProc (*GloamLoadFunc)(const char *name);

/* Contiguous run of pfnArray slots belonging to one feature or extension.
   Used by the range-based PFN loading loop. */
typedef struct {
    uint16_t extension; /* index into featArray or extArray */
    uint16_t start;     /* first pfnArray index in this run  */
    uint16_t count;     /* number of consecutive slots       */
} GloamPfnRange_t;

{% if alias -%}
/* Bijective alias pair: if canonical slot is null but secondary is loaded
   (or vice versa), the loaded pointer is propagated to both slots. */
typedef struct {
    uint16_t first;  /* canonical (shortest name) pfnArray index */
    uint16_t second; /* alias pfnArray index                     */
} GloamAliasPair_t;

{% endif -%}
#endif /* GLOAM_IMPL_UTIL_C_ */