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/* $Id: m_translate.c,v 1.1 2003-02-28 11:48:05 pj Exp $ */
/*
* Mesa 3-D graphics library
* Version: 4.1
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* 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
* BRIAN PAUL 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.
*/
/*
* New (3.1) transformation code written by Keith Whitwell.
*/
#include "glheader.h"
#include "mtypes.h" /* GLchan hack */
#include "colormac.h"
#include "mmath.h"
#include "m_translate.h"
typedef void (*trans_1f_func)(GLfloat *to,
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
typedef void (*trans_1ui_func)(GLuint *to,
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
typedef void (*trans_1ub_func)(GLubyte *to,
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
typedef void (*trans_4ub_func)(GLubyte (*to)[4],
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
typedef void (*trans_4us_func)(GLushort (*to)[4],
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
typedef void (*trans_4f_func)(GLfloat (*to)[4],
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
typedef void (*trans_3f_func)(GLfloat (*to)[3],
CONST void *ptr,
GLuint stride,
GLuint start,
GLuint n );
#define TYPE_IDX(t) ((t) & 0xf)
#define MAX_TYPES TYPE_IDX(GL_DOUBLE)+1 /* 0xa + 1 */
/* This macro is used on other systems, so undefine it for this module */
#undef CHECK
static trans_1f_func _math_trans_1f_tab[MAX_TYPES];
static trans_1ui_func _math_trans_1ui_tab[MAX_TYPES];
static trans_1ub_func _math_trans_1ub_tab[MAX_TYPES];
static trans_3f_func _math_trans_3f_tab[MAX_TYPES];
static trans_4ub_func _math_trans_4ub_tab[5][MAX_TYPES];
static trans_4us_func _math_trans_4us_tab[5][MAX_TYPES];
static trans_4f_func _math_trans_4f_tab[5][MAX_TYPES];
#define PTR_ELT(ptr, elt) (((SRC *)ptr)[elt])
#define TAB(x) _math_trans##x##_tab
#define ARGS GLuint start, GLuint n
#define SRC_START start
#define DST_START 0
#define STRIDE stride
#define NEXT_F f += stride
#define NEXT_F2
#define CHECK
/* GL_BYTE
*/
#define SRC GLbyte
#define SRC_IDX TYPE_IDX(GL_BYTE)
#define TRX_3F(f,n) BYTE_TO_FLOAT( PTR_ELT(f,n) )
#define TRX_4F(f,n) BYTE_TO_FLOAT( PTR_ELT(f,n) )
#define TRX_UB(ub, f,n) ub = BYTE_TO_UBYTE( PTR_ELT(f,n) )
#define TRX_US(ch, f,n) ch = BYTE_TO_USHORT( PTR_ELT(f,n) )
#define TRX_UI(f,n) (PTR_ELT(f,n) < 0 ? 0 : (GLuint) PTR_ELT(f,n))
#define SZ 4
#define INIT init_trans_4_GLbyte_raw
#define DEST_4F trans_4_GLbyte_4f_raw
#define DEST_4UB trans_4_GLbyte_4ub_raw
#define DEST_4US trans_4_GLbyte_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLbyte_raw
#define DEST_4F trans_3_GLbyte_4f_raw
#define DEST_4UB trans_3_GLbyte_4ub_raw
#define DEST_4US trans_3_GLbyte_4us_raw
#define DEST_3F trans_3_GLbyte_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLbyte_raw
#define DEST_4F trans_2_GLbyte_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLbyte_raw
#define DEST_4F trans_1_GLbyte_4f_raw
#define DEST_1UB trans_1_GLbyte_1ub_raw
#define DEST_1UI trans_1_GLbyte_1ui_raw
#include "m_trans_tmp.h"
#undef SRC
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
#undef SRC_IDX
/* GL_UNSIGNED_BYTE
*/
#define SRC GLubyte
#define SRC_IDX TYPE_IDX(GL_UNSIGNED_BYTE)
#define TRX_3F(f,n) UBYTE_TO_FLOAT(PTR_ELT(f,n))
#define TRX_4F(f,n) UBYTE_TO_FLOAT(PTR_ELT(f,n))
#define TRX_UB(ub, f,n) ub = PTR_ELT(f,n)
#define TRX_US(us, f,n) us = UBYTE_TO_USHORT(PTR_ELT(f,n))
#define TRX_UI(f,n) (GLuint)PTR_ELT(f,n)
/* 4ub->4ub handled in special case below.
*/
#define SZ 4
#define INIT init_trans_4_GLubyte_raw
#define DEST_4F trans_4_GLubyte_4f_raw
#define DEST_4US trans_4_GLubyte_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLubyte_raw
#define DEST_4UB trans_3_GLubyte_4ub_raw
#define DEST_4US trans_3_GLubyte_4us_raw
#define DEST_3F trans_3_GLubyte_3f_raw
#define DEST_4F trans_3_GLubyte_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLubyte_raw
#define DEST_1UI trans_1_GLubyte_1ui_raw
#define DEST_1UB trans_1_GLubyte_1ub_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
/* GL_SHORT
*/
#define SRC GLshort
#define SRC_IDX TYPE_IDX(GL_SHORT)
#define TRX_3F(f,n) SHORT_TO_FLOAT( PTR_ELT(f,n) )
#define TRX_4F(f,n) (GLfloat)( PTR_ELT(f,n) )
#define TRX_UB(ub, f,n) ub = SHORT_TO_UBYTE(PTR_ELT(f,n))
#define TRX_US(us, f,n) us = SHORT_TO_USHORT(PTR_ELT(f,n))
#define TRX_UI(f,n) (PTR_ELT(f,n) < 0 ? 0 : (GLuint) PTR_ELT(f,n))
#define SZ 4
#define INIT init_trans_4_GLshort_raw
#define DEST_4F trans_4_GLshort_4f_raw
#define DEST_4UB trans_4_GLshort_4ub_raw
#define DEST_4US trans_4_GLshort_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLshort_raw
#define DEST_4F trans_3_GLshort_4f_raw
#define DEST_4UB trans_3_GLshort_4ub_raw
#define DEST_4US trans_3_GLshort_4us_raw
#define DEST_3F trans_3_GLshort_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLshort_raw
#define DEST_4F trans_2_GLshort_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLshort_raw
#define DEST_4F trans_1_GLshort_4f_raw
#define DEST_1UB trans_1_GLshort_1ub_raw
#define DEST_1UI trans_1_GLshort_1ui_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
/* GL_UNSIGNED_SHORT
*/
#define SRC GLushort
#define SRC_IDX TYPE_IDX(GL_UNSIGNED_SHORT)
#define TRX_3F(f,n) USHORT_TO_FLOAT( PTR_ELT(f,n) )
#define TRX_4F(f,n) (GLfloat)( PTR_ELT(f,n) )
#define TRX_UB(ub,f,n) ub = (GLubyte) (PTR_ELT(f,n) >> 8)
#define TRX_US(us,f,n) us = (GLushort) (PTR_ELT(f,n) >> 8)
#define TRX_UI(f,n) (GLuint) PTR_ELT(f,n)
#define SZ 4
#define INIT init_trans_4_GLushort_raw
#define DEST_4F trans_4_GLushort_4f_raw
#define DEST_4UB trans_4_GLushort_4ub_raw
#define DEST_4US trans_4_GLushort_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLushort_raw
#define DEST_4F trans_3_GLushort_4f_raw
#define DEST_4UB trans_3_GLushort_4ub_raw
#define DEST_4US trans_3_GLushort_4us_raw
#define DEST_3F trans_3_GLushort_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLushort_raw
#define DEST_4F trans_2_GLushort_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLushort_raw
#define DEST_4F trans_1_GLushort_4f_raw
#define DEST_1UB trans_1_GLushort_1ub_raw
#define DEST_1UI trans_1_GLushort_1ui_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
/* GL_INT
*/
#define SRC GLint
#define SRC_IDX TYPE_IDX(GL_INT)
#define TRX_3F(f,n) INT_TO_FLOAT( PTR_ELT(f,n) )
#define TRX_4F(f,n) (GLfloat)( PTR_ELT(f,n) )
#define TRX_UB(ub, f,n) ub = INT_TO_UBYTE(PTR_ELT(f,n))
#define TRX_US(us, f,n) us = INT_TO_USHORT(PTR_ELT(f,n))
#define TRX_UI(f,n) (PTR_ELT(f,n) < 0 ? 0 : (GLuint) PTR_ELT(f,n))
#define SZ 4
#define INIT init_trans_4_GLint_raw
#define DEST_4F trans_4_GLint_4f_raw
#define DEST_4UB trans_4_GLint_4ub_raw
#define DEST_4US trans_4_GLint_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLint_raw
#define DEST_4F trans_3_GLint_4f_raw
#define DEST_4UB trans_3_GLint_4ub_raw
#define DEST_4US trans_3_GLint_4us_raw
#define DEST_3F trans_3_GLint_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLint_raw
#define DEST_4F trans_2_GLint_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLint_raw
#define DEST_4F trans_1_GLint_4f_raw
#define DEST_1UB trans_1_GLint_1ub_raw
#define DEST_1UI trans_1_GLint_1ui_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
/* GL_UNSIGNED_INT
*/
#define SRC GLuint
#define SRC_IDX TYPE_IDX(GL_UNSIGNED_INT)
#define TRX_3F(f,n) INT_TO_FLOAT( PTR_ELT(f,n) )
#define TRX_4F(f,n) (GLfloat)( PTR_ELT(f,n) )
#define TRX_UB(ub, f,n) ub = (GLubyte) (PTR_ELT(f,n) >> 24)
#define TRX_US(us, f,n) us = (GLshort) (PTR_ELT(f,n) >> 16)
#define TRX_UI(f,n) PTR_ELT(f,n)
#define SZ 4
#define INIT init_trans_4_GLuint_raw
#define DEST_4F trans_4_GLuint_4f_raw
#define DEST_4UB trans_4_GLuint_4ub_raw
#define DEST_4US trans_4_GLuint_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLuint_raw
#define DEST_4F trans_3_GLuint_4f_raw
#define DEST_4UB trans_3_GLuint_4ub_raw
#define DEST_4US trans_3_GLuint_4us_raw
#define DEST_3F trans_3_GLuint_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLuint_raw
#define DEST_4F trans_2_GLuint_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLuint_raw
#define DEST_4F trans_1_GLuint_4f_raw
#define DEST_1UB trans_1_GLuint_1ub_raw
#define DEST_1UI trans_1_GLuint_1ui_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
/* GL_DOUBLE
*/
#define SRC GLdouble
#define SRC_IDX TYPE_IDX(GL_DOUBLE)
#define TRX_3F(f,n) (GLfloat) PTR_ELT(f,n)
#define TRX_4F(f,n) (GLfloat) PTR_ELT(f,n)
#define TRX_UB(ub,f,n) UNCLAMPED_FLOAT_TO_UBYTE(ub, PTR_ELT(f,n))
#define TRX_US(us,f,n) UNCLAMPED_FLOAT_TO_USHORT(us, PTR_ELT(f,n))
#define TRX_UI(f,n) (GLuint) (GLint) PTR_ELT(f,n)
#define TRX_1F(f,n) (GLfloat) PTR_ELT(f,n)
#define SZ 4
#define INIT init_trans_4_GLdouble_raw
#define DEST_4F trans_4_GLdouble_4f_raw
#define DEST_4UB trans_4_GLdouble_4ub_raw
#define DEST_4US trans_4_GLdouble_4us_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLdouble_raw
#define DEST_4F trans_3_GLdouble_4f_raw
#define DEST_4UB trans_3_GLdouble_4ub_raw
#define DEST_4US trans_3_GLdouble_4us_raw
#define DEST_3F trans_3_GLdouble_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLdouble_raw
#define DEST_4F trans_2_GLdouble_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLdouble_raw
#define DEST_4F trans_1_GLdouble_4f_raw
#define DEST_1UB trans_1_GLdouble_1ub_raw
#define DEST_1UI trans_1_GLdouble_1ui_raw
#define DEST_1F trans_1_GLdouble_1f_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
/* GL_FLOAT
*/
#define SRC GLfloat
#define SRC_IDX TYPE_IDX(GL_FLOAT)
#define SZ 4
#define INIT init_trans_4_GLfloat_raw
#define DEST_4UB trans_4_GLfloat_4ub_raw
#define DEST_4US trans_4_GLfloat_4us_raw
#define DEST_4F trans_4_GLfloat_4f_raw
#include "m_trans_tmp.h"
#define SZ 3
#define INIT init_trans_3_GLfloat_raw
#define DEST_4F trans_3_GLfloat_4f_raw
#define DEST_4UB trans_3_GLfloat_4ub_raw
#define DEST_4US trans_3_GLfloat_4us_raw
#define DEST_3F trans_3_GLfloat_3f_raw
#include "m_trans_tmp.h"
#define SZ 2
#define INIT init_trans_2_GLfloat_raw
#define DEST_4F trans_2_GLfloat_4f_raw
#include "m_trans_tmp.h"
#define SZ 1
#define INIT init_trans_1_GLfloat_raw
#define DEST_4F trans_1_GLfloat_4f_raw
#define DEST_1UB trans_1_GLfloat_1ub_raw
#define DEST_1UI trans_1_GLfloat_1ui_raw
#define DEST_1F trans_1_GLfloat_1f_raw
#include "m_trans_tmp.h"
#undef SRC
#undef SRC_IDX
#undef TRX_3F
#undef TRX_4F
#undef TRX_UB
#undef TRX_US
#undef TRX_UI
static void trans_4_GLubyte_4ub_raw(GLubyte (*t)[4],
CONST void *Ptr,
GLuint stride,
ARGS )
{
const GLubyte *f = (GLubyte *) Ptr + SRC_START * stride;
GLuint i;
if (((((long) f | (long) stride)) & 3L) == 0L) {
/* Aligned.
*/
for (i = DST_START ; i < n ; i++, f += stride) {
COPY_4UBV( t[i], f );
}
} else {
for (i = DST_START ; i < n ; i++, f += stride) {
t[i][0] = f[0];
t[i][1] = f[1];
t[i][2] = f[2];
t[i][3] = f[3];
}
}
}
static void init_translate_raw(void)
{
MEMSET( TAB(_1ui), 0, sizeof(TAB(_1ui)) );
MEMSET( TAB(_1ub), 0, sizeof(TAB(_1ub)) );
MEMSET( TAB(_3f), 0, sizeof(TAB(_3f)) );
MEMSET( TAB(_4ub), 0, sizeof(TAB(_4ub)) );
MEMSET( TAB(_4us), 0, sizeof(TAB(_4us)) );
MEMSET( TAB(_4f), 0, sizeof(TAB(_4f)) );
init_trans_4_GLbyte_raw();
init_trans_3_GLbyte_raw();
init_trans_2_GLbyte_raw();
init_trans_1_GLbyte_raw();
init_trans_1_GLubyte_raw();
init_trans_3_GLubyte_raw();
init_trans_4_GLubyte_raw();
init_trans_4_GLshort_raw();
init_trans_3_GLshort_raw();
init_trans_2_GLshort_raw();
init_trans_1_GLshort_raw();
init_trans_4_GLushort_raw();
init_trans_3_GLushort_raw();
init_trans_2_GLushort_raw();
init_trans_1_GLushort_raw();
init_trans_4_GLint_raw();
init_trans_3_GLint_raw();
init_trans_2_GLint_raw();
init_trans_1_GLint_raw();
init_trans_4_GLuint_raw();
init_trans_3_GLuint_raw();
init_trans_2_GLuint_raw();
init_trans_1_GLuint_raw();
init_trans_4_GLdouble_raw();
init_trans_3_GLdouble_raw();
init_trans_2_GLdouble_raw();
init_trans_1_GLdouble_raw();
init_trans_4_GLfloat_raw();
init_trans_3_GLfloat_raw();
init_trans_2_GLfloat_raw();
init_trans_1_GLfloat_raw();
TAB(_4ub)[4][TYPE_IDX(GL_UNSIGNED_BYTE)] = trans_4_GLubyte_4ub_raw;
}
#undef TAB
#undef CLASS
#undef ARGS
#undef CHECK
#undef SRC_START
#undef DST_START
#undef NEXT_F
#undef NEXT_F2
void _math_init_translate( void )
{
init_translate_raw();
}
void _math_trans_1f(GLfloat *to,
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n )
{
_math_trans_1f_tab[TYPE_IDX(type)]( to, ptr, stride, start, n );
}
void _math_trans_1ui(GLuint *to,
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n )
{
_math_trans_1ui_tab[TYPE_IDX(type)]( to, ptr, stride, start, n );
}
void _math_trans_1ub(GLubyte *to,
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n )
{
_math_trans_1ub_tab[TYPE_IDX(type)]( to, ptr, stride, start, n );
}
void _math_trans_4ub(GLubyte (*to)[4],
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n )
{
_math_trans_4ub_tab[size][TYPE_IDX(type)]( to, ptr, stride, start, n );
}
void _math_trans_4chan( GLchan (*to)[4],
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n )
{
#if CHAN_TYPE == GL_UNSIGNED_BYTE
_math_trans_4ub( to, ptr, stride, type, size, start, n );
#elif CHAN_TYPE == GL_UNSIGNED_SHORT
_math_trans_4us( to, ptr, stride, type, size, start, n );
#elif CHAN_TYPE == GL_FLOAT
_math_trans_4f( to, ptr, stride, type, size, start, n );
#endif
}
void _math_trans_4us(GLushort (*to)[4],
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n )
{
_math_trans_4us_tab[size][TYPE_IDX(type)]( to, ptr, stride, start, n );
}
void _math_trans_4f(GLfloat (*to)[4],
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n )
{
_math_trans_4f_tab[size][TYPE_IDX(type)]( to, ptr, stride, start, n );
}
void _math_trans_3f(GLfloat (*to)[3],
CONST void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n )
{
_math_trans_3f_tab[TYPE_IDX(type)]( to, ptr, stride, start, n );
}