mesa: whitespace fixes, just to be consistent

[mesa.git] / src / mesa / main / imports.h

diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index a56e0af9b5c5368a82eca6f55487318974121a43..70defdc4327a877db058f8b6a48d3d3683340b5a 100644 (file)
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -134,19 +134,31 @@ typedef union { GLfloat f; GLint i; } fi_type;
 #define exp2f(f) ((float) exp2(f))
 #define floorf(f) ((float) floor(f))
 #define logf(f) ((float) log(f))
+
+#ifdef ANDROID
+#define log2f(f) (logf(f) * (float) (1.0 / M_LN2))
+#else
 #define log2f(f) ((float) log2(f))
+#endif
+
 #define powf(x,y) ((float) pow(x,y))
 #define sinf(f) ((float) sin(f))
 #define sinhf(f) ((float) sinh(f))
 #define sqrtf(f) ((float) sqrt(f))
 #define tanf(f) ((float) tan(f))
 #define tanhf(f) ((float) tanh(f))
+#define acoshf(f) ((float) acosh(f))
+#define asinhf(f) ((float) asinh(f))
+#define atanhf(f) ((float) atanh(f))
 #endif
 
 #if defined(_MSC_VER)
 static INLINE float truncf(float x) { return x < 0.0f ? ceilf(x) : floorf(x); }
 static INLINE float exp2f(float x) { return powf(2.0f, x); }
 static INLINE float log2f(float x) { return logf(x) * 1.442695041f; }
+static INLINE float asinhf(float x) { return logf(x + sqrtf(x * x + 1.0f)); }
+static INLINE float acoshf(float x) { return logf(x + sqrtf(x * x - 1.0f)); }
+static INLINE float atanhf(float x) { return (logf(1.0f + x) - logf(1.0f - x)) / 2.0f; }
 static INLINE int isblank(int ch) { return ch == ' ' || ch == '\t'; }
 #define strtoll(p, e, b) _strtoi64(p, e, b)
 #endif
@@ -480,6 +492,27 @@ _mesa_next_pow_two_64(uint64_t x)
 }
 
 
+/*
+ * Returns the floor form of binary logarithm for a 32-bit integer.
+ */
+static INLINE GLuint
+_mesa_logbase2(GLuint n)
+{
+#if defined(__GNUC__) && \
+   ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4)
+   return (31 - __builtin_clz(n | 1));
+#else
+   GLuint pos = 0;
+   if (n >= 1<<16) { n >>= 16; pos += 16; }
+   if (n >= 1<< 8) { n >>=  8; pos +=  8; }
+   if (n >= 1<< 4) { n >>=  4; pos +=  4; }
+   if (n >= 1<< 2) { n >>=  2; pos +=  2; }
+   if (n >= 1<< 1) {           pos +=  1; }
+   return pos;
+#endif
+}
+
+
 /**
  * Return 1 if this is a little endian machine, 0 if big endian.
  */
@@ -533,6 +566,24 @@ _mesa_inv_sqrtf(float x);
 extern void
 _mesa_init_sqrt_table(void);
 
+#ifdef __GNUC__
+
+#if defined(__MINGW32__) || defined(ANDROID)
+#define ffs __builtin_ffs
+#define ffsll __builtin_ffsll
+#endif
+
+#define _mesa_ffs(i)  ffs(i)
+#define _mesa_ffsll(i)  ffsll(i)
+
+#if ((_GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4)
+#define _mesa_bitcount(i) __builtin_popcount(i)
+#else
+extern unsigned int
+_mesa_bitcount(unsigned int n);
+#endif
+
+#else
 extern int
 _mesa_ffs(int32_t i);
 
@@ -541,6 +592,7 @@ _mesa_ffsll(int64_t i);
 
 extern unsigned int
 _mesa_bitcount(unsigned int n);
+#endif
 
 extern GLhalfARB
 _mesa_float_to_half(float f);
@@ -568,19 +620,19 @@ _mesa_str_checksum(const char *str);
 extern int
 _mesa_snprintf( char *str, size_t size, const char *fmt, ... ) PRINTFLIKE(3, 4);
 
-struct __GLcontextRec;
+struct gl_context;
 
 extern void
-_mesa_warning( struct __GLcontextRec *gc, const char *fmtString, ... ) PRINTFLIKE(2, 3);
+_mesa_warning( struct gl_context *gc, const char *fmtString, ... ) PRINTFLIKE(2, 3);
 
 extern void
-_mesa_problem( const struct __GLcontextRec *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
+_mesa_problem( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
 
 extern void
-_mesa_error( struct __GLcontextRec *ctx, GLenum error, const char *fmtString, ... ) PRINTFLIKE(3, 4);
+_mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... ) PRINTFLIKE(3, 4);
 
 extern void
-_mesa_debug( const struct __GLcontextRec *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
+_mesa_debug( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
 
 
 #if defined(_MSC_VER) && !defined(snprintf)