X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmesa%2Fmain%2Fmacros.h;h=03a228b4474b3ef35aa72e804ca378f68f32da3c;hb=f64d74aa198a993f5907a1bad5130e3056c1b84f;hp=e8a5722e95415cca10fe77a9e327012afb630237;hpb=dd404bc94f78a1766527becee03f8ef6ae3a799b;p=mesa.git diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h index e8a5722e954..03a228b4474 100644 --- a/src/mesa/main/macros.h +++ b/src/mesa/main/macros.h @@ -5,7 +5,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5.2 * * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. * @@ -22,15 +21,19 @@ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef MACROS_H #define MACROS_H +#include "util/macros.h" +#include "util/u_math.h" +#include "util/rounding.h" #include "imports.h" @@ -129,62 +132,90 @@ 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) -#define IEEE_0996 0x3f7f0000 /* 0.996 or so */ +#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_0996) \ + else if (__tmp.i >= IEEE_ONE) \ UB = (GLubyte) 255; \ else { \ __tmp.f = __tmp.f * (255.0F/256.0F) + 32768.0F; \ 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)); +} /*@}*/ @@ -246,14 +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 { \ @@ -345,15 +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) - /*@}*/ @@ -592,23 +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: - ASSERT(0); + 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); } @@ -643,19 +660,6 @@ INTERP_4F(GLfloat t, GLfloat dst[4], const GLfloat out[4], const GLfloat in[4]) -/** Clamp X to [MIN,MAX] */ -#define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) ) - -/** Minimum of two values: */ -#define MIN2( A, B ) ( (A)<(B) ? (A) : (B) ) - -/** Maximum of two values: */ -#define MAX2( A, B ) ( (A)>(B) ? (A) : (B) ) - -/** Minimum and maximum of three values: */ -#define MIN3( A, B, C ) ((A) < (B) ? MIN2(A, C) : MIN2(B, C)) -#define MAX3( A, B, C ) ((A) > (B) ? MAX2(A, C) : MAX2(B, C)) - static inline unsigned minify(unsigned value, unsigned levels) { @@ -673,8 +677,40 @@ 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 + * + * If \c value is not already aligned to the requested alignment value, it + * will be rounded down. + * + * \param value Value to be rounded + * \param alignment Alignment value to be used. This must be a power of two. + * + * \sa ALIGN() + */ +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 */ @@ -739,7 +775,7 @@ 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; @@ -747,33 +783,29 @@ 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