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/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_vb.c,v 1.4 2002/02/22 21:32:59 dawes Exp $
*
* GLX Hardware Device Driver for Sun Creator/Creator3D
* Copyright (C) 2000, 2001 David S. Miller
*
* 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
* DAVID MILLER, OR ANY OTHER CONTRIBUTORS 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.
*
*
* David S. Miller <davem@redhat.com>
*/
#include "ffb_xmesa.h"
#include "ffb_context.h"
#include "ffb_vb.h"
#include "mmath.h"
#include "imports.h"
#include "tnl/t_context.h"
#include "swrast_setup/swrast_setup.h"
#include "math/m_translate.h"
#undef VB_DEBUG
static void ffb_copy_pv_oneside(GLcontext *ctx, GLuint edst, GLuint esrc)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
ffb_vertex *dst = &fmesa->verts[edst];
ffb_vertex *src = &fmesa->verts[esrc];
#ifdef VB_DEBUG
fprintf(stderr, "ffb_copy_pv_oneside: edst(%d) esrc(%d)\n", edst, esrc);
#endif
dst->color[0].alpha = src->color[0].alpha;
dst->color[0].red = src->color[0].red;
dst->color[0].green = src->color[0].green;
dst->color[0].blue = src->color[0].blue;
}
static void ffb_copy_pv_twoside(GLcontext *ctx, GLuint edst, GLuint esrc)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
ffb_vertex *dst = &fmesa->verts[edst];
ffb_vertex *src = &fmesa->verts[esrc];
#ifdef VB_DEBUG
fprintf(stderr, "ffb_copy_pv_twoside: edst(%d) esrc(%d)\n", edst, esrc);
#endif
dst->color[0].alpha = src->color[0].alpha;
dst->color[0].red = src->color[0].red;
dst->color[0].green = src->color[0].green;
dst->color[0].blue = src->color[0].blue;
dst->color[1].alpha = src->color[1].alpha;
dst->color[1].red = src->color[1].red;
dst->color[1].green = src->color[1].green;
dst->color[1].blue = src->color[1].blue;
}
#define FFB_VB_RGBA_BIT 0x01
#define FFB_VB_XYZ_BIT 0x02
#define FFB_VB_TWOSIDE_BIT 0x04
#define FFB_VB_MAX 0x08
typedef void (*emit_func)(GLcontext *, GLuint, GLuint);
static struct {
emit_func emit;
interp_func interp;
} setup_tab[FFB_VB_MAX];
static void do_import(struct vertex_buffer *VB,
struct gl_client_array *to,
struct gl_client_array *from)
{
GLuint count = VB->Count;
if (!to->Ptr) {
to->Ptr = ALIGN_MALLOC( VB->Size * 4 * sizeof(GLfloat), 32 );
to->Type = GL_FLOAT;
}
/* No need to transform the same value 3000 times. */
if (!from->StrideB) {
to->StrideB = 0;
count = 1;
} else
to->StrideB = 4 * sizeof(GLfloat);
_math_trans_4f((GLfloat (*)[4]) to->Ptr,
from->Ptr, from->StrideB,
from->Type, from->Size,
0, count);
}
static __inline__ void ffbImportColors(ffbContextPtr fmesa, GLcontext *ctx, int index)
{
struct gl_client_array *to = &fmesa->FloatColor;
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
do_import(VB, to, VB->ColorPtr[index]);
VB->ColorPtr[index] = to;
}
#define IND (FFB_VB_XYZ_BIT)
#define TAG(x) x##_w
#include "ffb_vbtmp.h"
#define IND (FFB_VB_RGBA_BIT)
#define TAG(x) x##_g
#include "ffb_vbtmp.h"
#define IND (FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT)
#define TAG(x) x##_wg
#include "ffb_vbtmp.h"
#define IND (FFB_VB_TWOSIDE_BIT)
#define TAG(x) x##_t
#include "ffb_vbtmp.h"
#define IND (FFB_VB_XYZ_BIT | FFB_VB_TWOSIDE_BIT)
#define TAG(x) x##_wt
#include "ffb_vbtmp.h"
#define IND (FFB_VB_RGBA_BIT | FFB_VB_TWOSIDE_BIT)
#define TAG(x) x##_gt
#include "ffb_vbtmp.h"
#define IND (FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT | FFB_VB_TWOSIDE_BIT)
#define TAG(x) x##_wgt
#include "ffb_vbtmp.h"
static void init_setup_tab( void )
{
init_w();
init_g();
init_wg();
init_t();
init_wt();
init_gt();
init_wgt();
}
#ifdef VB_DEBUG
static void ffbPrintSetupFlags(char *msg, GLuint flags)
{
fprintf(stderr, "%s(%x): %s%s%s\n",
msg,
(int)flags,
(flags & FFB_VB_XYZ_BIT) ? " xyz," : "",
(flags & FFB_VB_RGBA_BIT) ? " rgba," : "",
(flags & FFB_VB_TWOSIDE_BIT) ? " twoside," : "");
}
#endif
static void ffbDDBuildVertices(GLcontext *ctx, GLuint start, GLuint count,
GLuint newinputs)
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
newinputs |= fmesa->setupnewinputs;
fmesa->setupnewinputs = 0;
if (!newinputs)
return;
if (newinputs & VERT_BIT_CLIP) {
setup_tab[fmesa->setupindex].emit(ctx, start, count);
} else {
GLuint ind = 0;
if (newinputs & VERT_BIT_COLOR0)
ind |= (FFB_VB_RGBA_BIT | FFB_VB_TWOSIDE_BIT);
ind &= fmesa->setupindex;
if (ind)
setup_tab[ind].emit(ctx, start, count);
}
}
void ffbChooseVertexState( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
int ind = FFB_VB_XYZ_BIT | FFB_VB_RGBA_BIT;
if (ctx->_TriangleCaps & DD_TRI_LIGHT_TWOSIDE)
ind |= FFB_VB_TWOSIDE_BIT;
#ifdef VB_DEBUG
ffbPrintSetupFlags("ffb: full setup function", ind);
#endif
fmesa->setupindex = ind;
tnl->Driver.Render.BuildVertices = ffbDDBuildVertices;
tnl->Driver.Render.Interp = setup_tab[ind].interp;
if (ind & FFB_VB_TWOSIDE_BIT)
tnl->Driver.Render.CopyPV = ffb_copy_pv_twoside;
else
tnl->Driver.Render.CopyPV = ffb_copy_pv_oneside;
}
void ffbInitVB( GLcontext *ctx )
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
GLuint size = TNL_CONTEXT(ctx)->vb.Size;
fmesa->verts = (ffb_vertex *)ALIGN_MALLOC(size * sizeof(ffb_vertex), 32);
{
static int firsttime = 1;
if (firsttime) {
init_setup_tab();
firsttime = 0;
}
}
}
void ffbFreeVB( GLcontext *ctx )
{
ffbContextPtr fmesa = FFB_CONTEXT(ctx);
if (fmesa->verts) {
ALIGN_FREE(fmesa->verts);
fmesa->verts = 0;
}
}
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