X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmesa%2Fmain%2Fmacros.h;h=ed207d44a64cb5bb000b67aa952113e90a85af13;hb=c5bab061dadea5627e8535a651ac5318bde9dad1;hp=4bb17d8d17478ea8eacbc2bb70c0c579a37f15e0;hpb=1a82081db6e57eaa74f852ed8acb391a7f4c2ca6;p=mesa.git diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h index 4bb17d8d174..ed207d44a64 100644 --- a/src/mesa/main/macros.h +++ b/src/mesa/main/macros.h @@ -31,6 +31,9 @@ #ifndef MACROS_H #define MACROS_H +#include "util/macros.h" +#include "util/u_math.h" +#include "util/rounding.h" #include "imports.h" @@ -129,25 +132,25 @@ extern GLfloat _mesa_ubyte_to_float_color_tab[256]; #define INT_TO_USHORT(i) ((i) < 0 ? 0 : ((GLushort) ((i) >> 15))) #define UINT_TO_USHORT(i) ((i) < 0 ? 0 : ((GLushort) ((i) >> 16))) #define UNCLAMPED_FLOAT_TO_USHORT(us, f) \ - us = ( (GLushort) F_TO_I( CLAMP((f), 0.0F, 1.0F) * 65535.0F) ) + us = ( (GLushort) _mesa_lroundevenf( CLAMP((f), 0.0F, 1.0F) * 65535.0F) ) #define CLAMPED_FLOAT_TO_USHORT(us, f) \ - us = ( (GLushort) F_TO_I( (f) * 65535.0F) ) + us = ( (GLushort) _mesa_lroundevenf( (f) * 65535.0F) ) #define UNCLAMPED_FLOAT_TO_SHORT(s, f) \ - s = ( (GLshort) F_TO_I( CLAMP((f), -1.0F, 1.0F) * 32767.0F) ) + s = ( (GLshort) _mesa_lroundevenf( CLAMP((f), -1.0F, 1.0F) * 32767.0F) ) /*** *** UNCLAMPED_FLOAT_TO_UBYTE: clamp float to [0,1] and map to ubyte in [0,255] *** CLAMPED_FLOAT_TO_UBYTE: map float known to be in [0,1] to ubyte in [0,255] ***/ -#if defined(USE_IEEE) && !defined(DEBUG) +#ifndef DEBUG /* This function/macro is sensitive to precision. Test very carefully * if you change it! */ -#define UNCLAMPED_FLOAT_TO_UBYTE(UB, F) \ +#define UNCLAMPED_FLOAT_TO_UBYTE(UB, FLT) \ do { \ fi_type __tmp; \ - __tmp.f = (F); \ + __tmp.f = (FLT); \ if (__tmp.i < 0) \ UB = (GLubyte) 0; \ else if (__tmp.i >= IEEE_ONE) \ @@ -157,33 +160,62 @@ extern GLfloat _mesa_ubyte_to_float_color_tab[256]; UB = (GLubyte) __tmp.i; \ } \ } while (0) -#define CLAMPED_FLOAT_TO_UBYTE(UB, F) \ +#define CLAMPED_FLOAT_TO_UBYTE(UB, FLT) \ do { \ fi_type __tmp; \ - __tmp.f = (F) * (255.0F/256.0F) + 32768.0F; \ + __tmp.f = (FLT) * (255.0F/256.0F) + 32768.0F; \ UB = (GLubyte) __tmp.i; \ } while (0) #else #define UNCLAMPED_FLOAT_TO_UBYTE(ub, f) \ - ub = ((GLubyte) F_TO_I(CLAMP((f), 0.0F, 1.0F) * 255.0F)) + ub = ((GLubyte) _mesa_lroundevenf(CLAMP((f), 0.0F, 1.0F) * 255.0F)) #define CLAMPED_FLOAT_TO_UBYTE(ub, f) \ - ub = ((GLubyte) F_TO_I((f) * 255.0F)) + ub = ((GLubyte) _mesa_lroundevenf((f) * 255.0F)) #endif -static inline GLfloat INT_AS_FLT(GLint i) +static fi_type UINT_AS_UNION(GLuint u) +{ + fi_type tmp; + tmp.u = u; + return tmp; +} + +static inline fi_type INT_AS_UNION(GLint i) { fi_type tmp; tmp.i = i; - return tmp.f; + return tmp; } -static inline GLfloat UINT_AS_FLT(GLuint u) +static inline fi_type FLOAT_AS_UNION(GLfloat f) { fi_type tmp; - tmp.u = u; - return tmp.f; + tmp.f = f; + return tmp; } +/** + * Convert a floating point value to an unsigned fixed point value. + * + * \param frac_bits The number of bits used to store the fractional part. + */ +static inline uint32_t +U_FIXED(float value, uint32_t frac_bits) +{ + value *= (1 << frac_bits); + return value < 0.0f ? 0 : (uint32_t) value; +} + +/** + * Convert a floating point value to an signed fixed point value. + * + * \param frac_bits The number of bits used to store the fractional part. + */ +static inline int32_t +S_FIXED(float value, uint32_t frac_bits) +{ + return (int32_t) (value * (1 << frac_bits)); +} /*@}*/ @@ -245,14 +277,6 @@ COPY_4UBV(GLubyte dst[4], const GLubyte src[4]) #endif } -/** Copy a 4-element float vector */ -static inline void -COPY_4FV(GLfloat dst[4], const GLfloat src[4]) -{ - /* memcpy seems to be most efficient */ - memcpy(dst, src, sizeof(GLfloat) * 4); -} - /** Copy \p SZ elements into a 4-element vector */ #define COPY_SZ_4V(DST, SZ, SRC) \ do { \ @@ -344,15 +368,6 @@ do { \ (DST)[3] *= S; \ } while (0) -/** Assignment */ -#define ASSIGN_4V( V, V0, V1, V2, V3 ) \ -do { \ - V[0] = V0; \ - V[1] = V1; \ - V[2] = V2; \ - V[3] = V3; \ -} while(0) - /*@}*/ @@ -591,24 +606,26 @@ do { \ * The default values are chosen based on \p type. */ static inline void -COPY_CLEAN_4V_TYPE_AS_FLOAT(GLfloat dst[4], int sz, const GLfloat src[4], +COPY_CLEAN_4V_TYPE_AS_UNION(fi_type dst[4], int sz, const fi_type src[4], GLenum type) { switch (type) { case GL_FLOAT: - ASSIGN_4V(dst, 0, 0, 0, 1); + ASSIGN_4V(dst, FLOAT_AS_UNION(0), FLOAT_AS_UNION(0), + FLOAT_AS_UNION(0), FLOAT_AS_UNION(1)); break; case GL_INT: - ASSIGN_4V(dst, INT_AS_FLT(0), INT_AS_FLT(0), - INT_AS_FLT(0), INT_AS_FLT(1)); + ASSIGN_4V(dst, INT_AS_UNION(0), INT_AS_UNION(0), + INT_AS_UNION(0), INT_AS_UNION(1)); break; case GL_UNSIGNED_INT: - ASSIGN_4V(dst, UINT_AS_FLT(0), UINT_AS_FLT(0), - UINT_AS_FLT(0), UINT_AS_FLT(1)); + ASSIGN_4V(dst, UINT_AS_UNION(0), UINT_AS_UNION(0), + UINT_AS_UNION(0), UINT_AS_UNION(1)); break; default: - ASSIGN_4V(dst, 0.0f, 0.0f, 0.0f, 1.0f); /* silence warnings */ - ASSERT(!"Unexpected type in COPY_CLEAN_4V_TYPE_AS_FLOAT macro"); + ASSIGN_4V(dst, FLOAT_AS_UNION(0), FLOAT_AS_UNION(0), + FLOAT_AS_UNION(0), FLOAT_AS_UNION(1)); /* silence warnings */ + assert(!"Unexpected type in COPY_CLEAN_4V_TYPE_AS_UNION macro"); } COPY_SZ_4V(dst, sz, src); } @@ -673,7 +690,22 @@ minify(unsigned value, unsigned levels) * * \sa ROUND_DOWN_TO() */ -#define ALIGN(value, alignment) (((value) + (alignment) - 1) & ~((alignment) - 1)) +static inline uintptr_t +ALIGN(uintptr_t value, int32_t alignment) +{ + assert((alignment > 0) && _mesa_is_pow_two(alignment)); + return (((value) + (alignment) - 1) & ~((alignment) - 1)); +} + +/** + * Like ALIGN(), but works with a non-power-of-two alignment. + */ +static inline uintptr_t +ALIGN_NPOT(uintptr_t value, int32_t alignment) +{ + assert(alignment > 0); + return (value + alignment - 1) / alignment * alignment; +} /** * Align a value down to an alignment value @@ -686,7 +718,12 @@ minify(unsigned value, unsigned levels) * * \sa ALIGN() */ -#define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1)) +static inline uintptr_t +ROUND_DOWN_TO(uintptr_t value, int32_t alignment) +{ + assert((alignment > 0) && _mesa_is_pow_two(alignment)); + return ((value) & ~(alignment - 1)); +} /** Cross product of two 3-element vectors */ @@ -751,7 +788,7 @@ NORMALIZE_3FV(GLfloat v[3]) { GLfloat len = (GLfloat) LEN_SQUARED_3FV(v); if (len) { - len = INV_SQRTF(len); + len = 1.0f / sqrtf(len); v[0] *= len; v[1] *= len; v[2] *= len; @@ -759,33 +796,29 @@ NORMALIZE_3FV(GLfloat v[3]) } -/** Is float value negative? */ -static inline GLboolean -IS_NEGATIVE(float x) -{ - return signbit(x) != 0; -} - /** Test two floats have opposite signs */ static inline GLboolean DIFFERENT_SIGNS(GLfloat x, GLfloat y) { +#ifdef _MSC_VER +#pragma warning( push ) +#pragma warning( disable : 6334 ) /* sizeof operator applied to an expression with an operator may yield unexpected results */ +#endif return signbit(x) != signbit(y); +#ifdef _MSC_VER +#pragma warning( pop ) +#endif } -/** Compute ceiling of integer quotient of A divided by B. */ -#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 ) - - /** casts to silence warnings with some compilers */ #define ENUM_TO_INT(E) ((GLint)(E)) #define ENUM_TO_FLOAT(E) ((GLfloat)(GLint)(E)) #define ENUM_TO_DOUBLE(E) ((GLdouble)(GLint)(E)) #define ENUM_TO_BOOLEAN(E) ((E) ? GL_TRUE : GL_FALSE) -/* Compute the size of an array */ -#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) +/* Stringify */ +#define STRINGIFY(x) #x #endif