/*
* Copyright 2003 Tungsten Graphics, inc.
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 (including the next
* paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS 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.
*
* Authors:
* Keith Whitwell <keithw@tungstengraphics.com>
*/
#include "main/glheader.h"
#include "main/context.h"
#include "main/colormac.h"
#include "main/simple_list.h"
#include "swrast/s_chan.h"
#include "t_context.h"
#include "t_vertex.h"
#if 0
#define DEBUG_INSERT printf("%s\n", __FUNCTION__)
#else
#define DEBUG_INSERT
#endif
/*
* These functions take the NDC coordinates pointed to by 'in', apply the
* NDC->Viewport mapping and store the results at 'v'.
*/
static inline void insert_4f_viewport_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[5] * in[1] + vp[13];
out[2] = vp[10] * in[2] + vp[14];
out[3] = in[3];
}
static inline void insert_4f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[5] * in[1] + vp[13];
out[2] = vp[10] * in[2] + vp[14];
out[3] = 1;
}
static inline void insert_4f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[5] * in[1] + vp[13];
out[2] = vp[14];
out[3] = 1;
}
static inline void insert_4f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[13];
out[2] = vp[14];
out[3] = 1;
}
static inline void insert_3f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[5] * in[1] + vp[13];
out[2] = vp[10] * in[2] + vp[14];
}
static inline void insert_3f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[5] * in[1] + vp[13];
out[2] = vp[14];
}
static inline void insert_3f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[13];
out[2] = vp[14];
}
static inline void insert_2f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[5] * in[1] + vp[13];
}
static inline void insert_2f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLfloat *out = (GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = vp[0] * in[0] + vp[12];
out[1] = vp[13];
}
/*
* These functions do the same as above, except for the viewport mapping.
*/
static inline void insert_4f_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
out[3] = in[3];
}
static inline void insert_4f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
out[3] = 1;
}
static inline void insert_4f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
out[2] = 0;
out[3] = 1;
}
static inline void insert_4f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = 0;
out[2] = 0;
out[3] = 1;
}
static inline void insert_3f_xyw_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
out[2] = in[3];
}
static inline void insert_3f_xyw_err( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
(void) a; (void) v; (void) in;
DEBUG_INSERT;
exit(1);
}
static inline void insert_3f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
}
static inline void insert_3f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
out[2] = 0;
}
static inline void insert_3f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = 0;
out[2] = 0;
}
static inline void insert_2f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = in[1];
}
static inline void insert_2f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
out[1] = 0;
}
static inline void insert_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
GLfloat *out = (GLfloat *)(v);
(void) a;
DEBUG_INSERT;
out[0] = in[0];
}
static inline void insert_null( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in )
{
DEBUG_INSERT;
(void) a; (void) v; (void) in;
}
static inline void insert_4chan_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLchan *c = (GLchan *)v;
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]);
UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]);
UNCLAMPED_FLOAT_TO_CHAN(c[3], in[3]);
}
static inline void insert_4chan_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLchan *c = (GLchan *)v;
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]);
UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]);
c[3] = CHAN_MAX;
}
static inline void insert_4chan_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLchan *c = (GLchan *)v;
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]);
c[2] = 0;
c[3] = CHAN_MAX;
}
static inline void insert_4chan_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
GLchan *c = (GLchan *)v;
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]);
c[1] = 0;
c[2] = 0;
c[3] = CHAN_MAX;
}
static inline void insert_4ub_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]);
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]);
}
static inline void insert_4ub_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]);
v[3] = 0xff;
}
static inline void insert_4ub_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
v[2] = 0;
v[3] = 0xff;
}
static inline void insert_4ub_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
v[1] = 0;
v[2] = 0;
v[3] = 0xff;
}
static inline void insert_4ub_4f_bgra_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]);
}
static inline void insert_4ub_4f_bgra_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
v[3] = 0xff;
}
static inline void insert_4ub_4f_bgra_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
v[0] = 0;
v[3] = 0xff;
}
static inline void insert_4ub_4f_bgra_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
v[1] = 0;
v[0] = 0;
v[3] = 0xff;
}
static inline void insert_4ub_4f_argb_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]);
}
static inline void insert_4ub_4f_argb_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]);
v[0] = 0xff;
}
static inline void insert_4ub_4f_argb_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
v[3] = 0x00;
v[0] = 0xff;
}
static inline void insert_4ub_4f_argb_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]);
v[2] = 0x00;
v[3] = 0x00;
v[0] = 0xff;
}
static inline void insert_4ub_4f_abgr_4( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[2]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]);
}
static inline void insert_4ub_4f_abgr_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[2]);
v[0] = 0xff;
}
static inline void insert_4ub_4f_abgr_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]);
v[1] = 0x00;
v[0] = 0xff;
}
static inline void insert_4ub_4f_abgr_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]);
v[2] = 0x00;
v[1] = 0x00;
v[0] = 0xff;
}
static inline void insert_3ub_3f_rgb_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]);
}
static inline void insert_3ub_3f_rgb_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
v[2] = 0;
}
static inline void insert_3ub_3f_rgb_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
v[1] = 0;
v[2] = 0;
}
static inline void insert_3ub_3f_bgr_3( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]);
}
static inline void insert_3ub_3f_bgr_2( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]);
v[0] = 0;
}
static inline void insert_3ub_3f_bgr_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]);
v[1] = 0;
v[0] = 0;
}
static inline void insert_1ub_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v,
const GLfloat *in )
{
DEBUG_INSERT;
(void) a;
UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]);
}
/***********************************************************************
* Functions to perform the reverse operations to the above, for
* swrast translation and clip-interpolation.
*
* Currently always extracts a full 4 floats.
*/
static void extract_4f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
const GLfloat * const vp = a->vp;
/* Although included for completeness, the position coordinate is
* usually handled differently during clipping.
*/
DEBUG_INSERT;
out[0] = (in[0] - vp[12]) / vp[0];
out[1] = (in[1] - vp[13]) / vp[5];
out[2] = (in[2] - vp[14]) / vp[10];
out[3] = in[3];
}
static void extract_3f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = (in[0] - vp[12]) / vp[0];
out[1] = (in[1] - vp[13]) / vp[5];
out[2] = (in[2] - vp[14]) / vp[10];
out[3] = 1;
}
static void extract_2f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
const GLfloat * const vp = a->vp;
DEBUG_INSERT;
out[0] = (in[0] - vp[12]) / vp[0];
out[1] = (in[1] - vp[13]) / vp[5];
out[2] = 0;
out[3] = 1;
}
static void extract_4f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
(void) a;
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
out[3] = in[3];
}
static void extract_3f_xyw( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
(void) a;
out[0] = in[0];
out[1] = in[1];
out[2] = 0;
out[3] = in[2];
}
static void extract_3f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
(void) a;
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
out[3] = 1;
}
static void extract_2f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
(void) a;
out[0] = in[0];
out[1] = in[1];
out[2] = 0;
out[3] = 1;
}
static void extract_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
{
const GLfloat *in = (const GLfloat *)v;
(void) a;
out[0] = in[0];
out[1] = 0;
out[2] = 0;
out[3] = 1;
}
static void extract_4chan_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
GLchan *c = (GLchan *)v;
(void) a;
out[0] = CHAN_TO_FLOAT(c[0]);
out[1] = CHAN_TO_FLOAT(c[1]);
out[2] = CHAN_TO_FLOAT(c[2]);
out[3] = CHAN_TO_FLOAT(c[3]);
}
static void extract_4ub_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
(void) a;
out[0] = UBYTE_TO_FLOAT(v[0]);
out[1] = UBYTE_TO_FLOAT(v[1]);
out[2] = UBYTE_TO_FLOAT(v[2]);
out[3] = UBYTE_TO_FLOAT(v[3]);
}
static void extract_4ub_4f_bgra( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
(void) a;
out[2] = UBYTE_TO_FLOAT(v[0]);
out[1] = UBYTE_TO_FLOAT(v[1]);
out[0] = UBYTE_TO_FLOAT(v[2]);
out[3] = UBYTE_TO_FLOAT(v[3]);
}
static void extract_4ub_4f_argb( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
(void) a;
out[3] = UBYTE_TO_FLOAT(v[0]);
out[0] = UBYTE_TO_FLOAT(v[1]);
out[1] = UBYTE_TO_FLOAT(v[2]);
out[2] = UBYTE_TO_FLOAT(v[3]);
}
static void extract_4ub_4f_abgr( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
(void) a;
out[3] = UBYTE_TO_FLOAT(v[0]);
out[2] = UBYTE_TO_FLOAT(v[1]);
out[1] = UBYTE_TO_FLOAT(v[2]);
out[0] = UBYTE_TO_FLOAT(v[3]);
}
static void extract_3ub_3f_rgb( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
(void) a;
out[0] = UBYTE_TO_FLOAT(v[0]);
out[1] = UBYTE_TO_FLOAT(v[1]);
out[2] = UBYTE_TO_FLOAT(v[2]);
out[3] = 1;
}
static void extract_3ub_3f_bgr( const struct tnl_clipspace_attr *a, GLfloat *out,
const GLubyte *v )
{
(void) a;
out[2] = UBYTE_TO_FLOAT(v[0]);
out[1] = UBYTE_TO_FLOAT(v[1]);
out[0] = UBYTE_TO_FLOAT(v[2]);
out[3] = 1;
}
static void extract_1ub_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v )
{
(void) a;
out[0] = UBYTE_TO_FLOAT(v[0]);
out[1] = 0;
out[2] = 0;
out[3] = 1;
}
const struct tnl_format_info _tnl_format_info[EMIT_MAX] =
{
{ "1f",
extract_1f,
{ insert_1f_1, insert_1f_1, insert_1f_1, insert_1f_1 },
sizeof(GLfloat) },
{ "2f",
extract_2f,
{ insert_2f_1, insert_2f_2, insert_2f_2, insert_2f_2 },
2 * sizeof(GLfloat) },
{ "3f",
extract_3f,
{ insert_3f_1, insert_3f_2, insert_3f_3, insert_3f_3 },
3 * sizeof(GLfloat) },
{ "4f",
extract_4f,
{ insert_4f_1, insert_4f_2, insert_4f_3, insert_4f_4 },
4 * sizeof(GLfloat) },
{ "2f_viewport",
extract_2f_viewport,
{ insert_2f_viewport_1, insert_2f_viewport_2, insert_2f_viewport_2,
insert_2f_viewport_2 },
2 * sizeof(GLfloat) },
{ "3f_viewport",
extract_3f_viewport,
{ insert_3f_viewport_1, insert_3f_viewport_2, insert_3f_viewport_3,
insert_3f_viewport_3 },
3 * sizeof(GLfloat) },
{ "4f_viewport",
extract_4f_viewport,
{ insert_4f_viewport_1, insert_4f_viewport_2, insert_4f_viewport_3,
insert_4f_viewport_4 },
4 * sizeof(GLfloat) },
{ "3f_xyw",
extract_3f_xyw,
{ insert_3f_xyw_err, insert_3f_xyw_err, insert_3f_xyw_err,
insert_3f_xyw_4 },
3 * sizeof(GLfloat) },
{ "1ub_1f",
extract_1ub_1f,
{ insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1 },
sizeof(GLubyte) },
{ "3ub_3f_rgb",
extract_3ub_3f_rgb,
{ insert_3ub_3f_rgb_1, insert_3ub_3f_rgb_2, insert_3ub_3f_rgb_3,
insert_3ub_3f_rgb_3 },
3 * sizeof(GLubyte) },
{ "3ub_3f_bgr",
extract_3ub_3f_bgr,
{ insert_3ub_3f_bgr_1, insert_3ub_3f_bgr_2, insert_3ub_3f_bgr_3,
insert_3ub_3f_bgr_3 },
3 * sizeof(GLubyte) },
{ "4ub_4f_rgba",
extract_4ub_4f_rgba,
{ insert_4ub_4f_rgba_1, insert_4ub_4f_rgba_2, insert_4ub_4f_rgba_3,
insert_4ub_4f_rgba_4 },
4 * sizeof(GLubyte) },
{ "4ub_4f_bgra",
extract_4ub_4f_bgra,
{ insert_4ub_4f_bgra_1, insert_4ub_4f_bgra_2, insert_4ub_4f_bgra_3,
insert_4ub_4f_bgra_4 },
4 * sizeof(GLubyte) },
{ "4ub_4f_argb",
extract_4ub_4f_argb,
{ insert_4ub_4f_argb_1, insert_4ub_4f_argb_2, insert_4ub_4f_argb_3,
insert_4ub_4f_argb_4 },
4 * sizeof(GLubyte) },
{ "4ub_4f_abgr",
extract_4ub_4f_abgr,
{ insert_4ub_4f_abgr_1, insert_4ub_4f_abgr_2, insert_4ub_4f_abgr_3,
insert_4ub_4f_abgr_4 },
4 * sizeof(GLubyte) },
{ "4chan_4f_rgba",
extract_4chan_4f_rgba,
{ insert_4chan_4f_rgba_1, insert_4chan_4f_rgba_2, insert_4chan_4f_rgba_3,
insert_4chan_4f_rgba_4 },
4 * sizeof(GLchan) },
{ "pad",
NULL,
{ NULL, NULL, NULL, NULL },
0 }
};
/***********************************************************************
* Hardwired fastpaths for emitting whole vertices or groups of
* vertices
*/
#define EMIT5(NR, F0, F1, F2, F3, F4, NAME) \
static void NAME( struct gl_context *ctx, \
GLuint count, \
GLubyte *v ) \
{ \
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); \
struct tnl_clipspace_attr *a = vtx->attr; \
GLuint i; \
\
for (i = 0 ; i < count ; i++, v += vtx->vertex_size) { \
if (NR > 0) { \
F0( &a[0], v + a[0].vertoffset, (GLfloat *)a[0].inputptr ); \
a[0].inputptr += a[0].inputstride; \
} \
\
if (NR > 1) { \
F1( &a[1], v + a[1].vertoffset, (GLfloat *)a[1].inputptr ); \
a[1].inputptr += a[1].inputstride; \
} \
\
if (NR > 2) { \
F2( &a[2], v + a[2].vertoffset, (GLfloat *)a[2].inputptr ); \
a[2].inputptr += a[2].inputstride; \
} \
\
if (NR > 3) { \
F3( &a[3], v + a[3].vertoffset, (GLfloat *)a[3].inputptr ); \
a[3].inputptr += a[3].inputstride; \
} \
\
if (NR > 4) { \
F4( &a[4], v + a[4].vertoffset, (GLfloat *)a[4].inputptr ); \
a[4].inputptr += a[4].inputstride; \
} \
} \
}
#define EMIT2(F0, F1, NAME) EMIT5(2, F0, F1, insert_null, \
insert_null, insert_null, NAME)
#define EMIT3(F0, F1, F2, NAME) EMIT5(3, F0, F1, F2, insert_null, \
insert_null, NAME)
#define EMIT4(F0, F1, F2, F3, NAME) EMIT5(4, F0, F1, F2, F3, \
insert_null, NAME)
EMIT2(insert_3f_viewport_3, insert_4ub_4f_rgba_4, emit_viewport3_rgba4)
EMIT2(insert_3f_viewport_3, insert_4ub_4f_bgra_4, emit_viewport3_bgra4)
EMIT2(insert_3f_3, insert_4ub_4f_rgba_4, emit_xyz3_rgba4)
EMIT3(insert_4f_viewport_4, insert_4ub_4f_rgba_4, insert_2f_2, emit_viewport4_rgba4_st2)
EMIT3(insert_4f_viewport_4, insert_4ub_4f_bgra_4, insert_2f_2, emit_viewport4_bgra4_st2)
EMIT3(insert_4f_4, insert_4ub_4f_rgba_4, insert_2f_2, emit_xyzw4_rgba4_st2)
EMIT4(insert_4f_viewport_4, insert_4ub_4f_rgba_4, insert_2f_2, insert_2f_2, emit_viewport4_rgba4_st2_st2)
EMIT4(insert_4f_viewport_4, insert_4ub_4f_bgra_4, insert_2f_2, insert_2f_2, emit_viewport4_bgra4_st2_st2)
EMIT4(insert_4f_4, insert_4ub_4f_rgba_4, insert_2f_2, insert_2f_2, emit_xyzw4_rgba4_st2_st2)
/* Use the codegen paths to select one of a number of hardwired
* fastpaths.
*/
void _tnl_generate_hardwired_emit( struct gl_context *ctx )
{
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
tnl_emit_func func = NULL;
/* Does it fit a hardwired fastpath? Help! this is growing out of
* control!
*/
switch (vtx->attr_count) {
case 2:
if (vtx->attr[0].emit == insert_3f_viewport_3) {
if (vtx->attr[1].emit == insert_4ub_4f_bgra_4)
func = emit_viewport3_bgra4;
else if (vtx->attr[1].emit == insert_4ub_4f_rgba_4)
func = emit_viewport3_rgba4;
}
else if (vtx->attr[0].emit == insert_3f_3 &&
vtx->attr[1].emit == insert_4ub_4f_rgba_4) {
func = emit_xyz3_rgba4;
}
break;
case 3:
if (vtx->attr[2].emit == insert_2f_2) {
if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) {
if (vtx->attr[0].emit == insert_4f_viewport_4)
func = emit_viewport4_rgba4_st2;
else if (vtx->attr[0].emit == insert_4f_4)
func = emit_xyzw4_rgba4_st2;
}
else if (vtx->attr[1].emit == insert_4ub_4f_bgra_4 &&
vtx->attr[0].emit == insert_4f_viewport_4)
func = emit_viewport4_bgra4_st2;
}
break;
case 4:
if (vtx->attr[2].emit == insert_2f_2 &&
vtx->attr[3].emit == insert_2f_2) {
if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) {
if (vtx->attr[0].emit == insert_4f_viewport_4)
func = emit_viewport4_rgba4_st2_st2;
else if (vtx->attr[0].emit == insert_4f_4)
func = emit_xyzw4_rgba4_st2_st2;
}
else if (vtx->attr[1].emit == insert_4ub_4f_bgra_4 &&
vtx->attr[0].emit == insert_4f_viewport_4)
func = emit_viewport4_bgra4_st2_st2;
}
break;
}
vtx->emit = func;
}
/***********************************************************************
* Generic (non-codegen) functions for whole vertices or groups of
* vertices
*/
void _tnl_generic_emit( struct gl_context *ctx,
GLuint count,
GLubyte *v )
{
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
struct tnl_clipspace_attr *a = vtx->attr;
const GLuint attr_count = vtx->attr_count;
const GLuint stride = vtx->vertex_size;
GLuint i, j;
for (i = 0 ; i < count ; i++, v += stride) {
for (j = 0; j < attr_count; j++) {
GLfloat *in = (GLfloat *)a[j].inputptr;
a[j].inputptr += a[j].inputstride;
a[j].emit( &a[j], v + a[j].vertoffset, in );
}
}
}
void _tnl_generic_interp( struct gl_context *ctx,
GLfloat t,
GLuint edst, GLuint eout, GLuint ein,
GLboolean force_boundary )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
const GLubyte *vin = vtx->vertex_buf + ein * vtx->vertex_size;
const GLubyte *vout = vtx->vertex_buf + eout * vtx->vertex_size;
GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size;
const struct tnl_clipspace_attr *a = vtx->attr;
const GLuint attr_count = vtx->attr_count;
GLuint j;
(void) force_boundary;
if (tnl->NeedNdcCoords) {
const GLfloat *dstclip = VB->ClipPtr->data[edst];
if (dstclip[3] != 0.0) {
const GLfloat w = 1.0f / dstclip[3];
GLfloat pos[4];
pos[0] = dstclip[0] * w;
pos[1] = dstclip[1] * w;
pos[2] = dstclip[2] * w;
pos[3] = w;
a[0].insert[4-1]( &a[0], vdst, pos );
}
}
else {
a[0].insert[4-1]( &a[0], vdst, VB->ClipPtr->data[edst] );
}
for (j = 1; j < attr_count; j++) {
GLfloat fin[4], fout[4], fdst[4];
a[j].extract( &a[j], fin, vin + a[j].vertoffset );
a[j].extract( &a[j], fout, vout + a[j].vertoffset );
INTERP_4F(t, fdst, fout, fin);
a[j].insert[4-1]( &a[j], vdst + a[j].vertoffset, fdst );
}
}
/* Extract color attributes from one vertex and insert them into
* another. (Shortcircuit extract/insert with memcpy).
*/
void _tnl_generic_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc )
{
struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
GLubyte *vsrc = vtx->vertex_buf + esrc * vtx->vertex_size;
GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size;
const struct tnl_clipspace_attr *a = vtx->attr;
const GLuint attr_count = vtx->attr_count;
GLuint j;
for (j = 0; j < attr_count; j++) {
if (a[j].attrib == VERT_ATTRIB_COLOR0 ||
a[j].attrib == VERT_ATTRIB_COLOR1) {
memcpy( vdst + a[j].vertoffset,
vsrc + a[j].vertoffset,
a[j].vertattrsize );
}
}
}
/* Helper functions for hardware which doesn't put back colors and/or
* edgeflags into vertices.
*/
void _tnl_generic_interp_extras( struct gl_context *ctx,
GLfloat t,
GLuint dst, GLuint out, GLuint in,
GLboolean force_boundary )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
/* If stride is zero, BackfaceColorPtr is constant across the VB, so
* there is no point interpolating between two values as they will
* be identical. In all other cases, this value is generated by
* t_vb_lighttmp.h and has a stride of 4 dwords.
*/
if (VB->BackfaceColorPtr && VB->BackfaceColorPtr->stride) {
assert(VB->BackfaceColorPtr->stride == 4 * sizeof(GLfloat));
INTERP_4F( t,
VB->BackfaceColorPtr->data[dst],
VB->BackfaceColorPtr->data[out],
VB->BackfaceColorPtr->data[in] );
}
if (VB->BackfaceSecondaryColorPtr) {
assert(VB->BackfaceSecondaryColorPtr->stride == 4 * sizeof(GLfloat));
INTERP_3F( t,
VB->BackfaceSecondaryColorPtr->data[dst],
VB->BackfaceSecondaryColorPtr->data[out],
VB->BackfaceSecondaryColorPtr->data[in] );
}
if (VB->BackfaceIndexPtr) {
VB->BackfaceIndexPtr->data[dst][0] = LINTERP( t,
VB->BackfaceIndexPtr->data[out][0],
VB->BackfaceIndexPtr->data[in][0] );
}
if (VB->EdgeFlag) {
VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary;
}
_tnl_generic_interp(ctx, t, dst, out, in, force_boundary);
}
void _tnl_generic_copy_pv_extras( struct gl_context *ctx,
GLuint dst, GLuint src )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
/* See above comment:
*/
if (VB->BackfaceColorPtr && VB->BackfaceColorPtr->stride) {
COPY_4FV( VB->BackfaceColorPtr->data[dst],
VB->BackfaceColorPtr->data[src] );
}
if (VB->BackfaceSecondaryColorPtr) {
COPY_4FV( VB->BackfaceSecondaryColorPtr->data[dst],
VB->BackfaceSecondaryColorPtr->data[src] );
}
if (VB->BackfaceIndexPtr) {
VB->BackfaceIndexPtr->data[dst][0] = VB->BackfaceIndexPtr->data[src][0];
}
_tnl_generic_copy_pv(ctx, dst, src);
}