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/* $Id: ss_context.c,v 1.6 2001/01/05 02:26:49 keithw Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999 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.
*
* Authors:
* Keith Whitwell <keithw@valinux.com>
*/
#include "glheader.h"
#include "mem.h"
#include "ss_context.h"
#include "ss_triangle.h"
#include "ss_vb.h"
#include "swrast_setup.h"
#include "tnl/t_context.h"
/* Stub for swsetup->Triangle to select a true triangle function
* after a state change.
*/
static void
_swsetup_validate_quad( GLcontext *ctx, GLuint v0, GLuint v1,
GLuint v2, GLuint v3 )
{
_swsetup_choose_trifuncs( ctx );
SWSETUP_CONTEXT(ctx)->Quad( ctx, v0, v1, v2, v3 );
}
static void
_swsetup_validate_triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2 )
{
_swsetup_choose_trifuncs( ctx );
SWSETUP_CONTEXT(ctx)->Triangle( ctx, v0, v1, v2 );
}
static void
_swsetup_validate_line( GLcontext *ctx, GLuint v0, GLuint v1 )
{
_swsetup_choose_trifuncs( ctx );
SWSETUP_CONTEXT(ctx)->Line( ctx, v0, v1 );
}
static void
_swsetup_validate_points( GLcontext *ctx, GLuint first, GLuint last )
{
_swsetup_choose_trifuncs( ctx );
SWSETUP_CONTEXT(ctx)->Points( ctx, first, last );
}
static void
_swsetup_validate_buildprojverts( GLcontext *ctx,
GLuint start, GLuint end, GLuint new_inputs )
{
_swsetup_choose_rastersetup_func( ctx );
SWSETUP_CONTEXT(ctx)->BuildProjVerts( ctx, start, end, new_inputs );
}
#define _SWSETUP_NEW_VERTS (_NEW_RENDERMODE| \
_NEW_TEXTURE| \
_NEW_COLOR| \
_NEW_FOG| \
_NEW_POINT)
#define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT)
#if 0
/* TODO: sleep/wakeup mechanism
*/
static void
_swsetup_sleep( GLcontext *ctx, GLuint new_state )
{
}
#endif
static void
_swsetup_invalidate_state( GLcontext *ctx, GLuint new_state )
{
SScontext *swsetup = SWSETUP_CONTEXT(ctx);
swsetup->NewState |= new_state;
if (new_state & _SWSETUP_NEW_RENDERINDEX) {
swsetup->Triangle = _swsetup_validate_triangle;
swsetup->Line = _swsetup_validate_line;
swsetup->Points = _swsetup_validate_points;
swsetup->Quad = _swsetup_validate_quad;
}
if (new_state & _SWSETUP_NEW_VERTS) {
swsetup->BuildProjVerts = _swsetup_validate_buildprojverts;
}
}
/* Dispatch from these fixed entrypoints to the state-dependent
* functions:
*/
void
_swsetup_Quad( GLcontext *ctx, GLuint v0, GLuint v1,
GLuint v2, GLuint v3 )
{
SWSETUP_CONTEXT(ctx)->Quad( ctx, v0, v1, v2, v3 );
}
void
_swsetup_Triangle( GLcontext *ctx, GLuint v0, GLuint v1,
GLuint v2 )
{
SWSETUP_CONTEXT(ctx)->Triangle( ctx, v0, v1, v2 );
}
void
_swsetup_Line( GLcontext *ctx, GLuint v0, GLuint v1 )
{
SWSETUP_CONTEXT(ctx)->Line( ctx, v0, v1 );
}
void
_swsetup_Points( GLcontext *ctx, GLuint first, GLuint last )
{
SWSETUP_CONTEXT(ctx)->Points( ctx, first, last );
}
void
_swsetup_BuildProjectedVertices( GLcontext *ctx, GLuint start, GLuint end,
GLuint new_inputs )
{
SWSETUP_CONTEXT(ctx)->BuildProjVerts( ctx, start, end, new_inputs );
}
void
_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state )
{
SWSETUP_CONTEXT(ctx)->InvalidateState( ctx, new_state );
}
GLboolean
_swsetup_CreateContext( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext));
if (!swsetup)
return GL_FALSE;
swsetup->verts = ALIGN_MALLOC( sizeof(SWvertex) * tnl->vb.Size, 32);
if (!swsetup->verts) {
FREE(swsetup);
return GL_FALSE;
}
ctx->swsetup_context = swsetup;
swsetup->NewState = ~0;
swsetup->InvalidateState = _swsetup_invalidate_state;
swsetup->Quad = _swsetup_validate_quad;
swsetup->Triangle = _swsetup_validate_triangle;
swsetup->Line = _swsetup_validate_line;
swsetup->Points = _swsetup_validate_points;
swsetup->BuildProjVerts = _swsetup_validate_buildprojverts;
_swsetup_vb_init( ctx );
_swsetup_trifuncs_init( ctx );
return GL_TRUE;
}
void
_swsetup_DestroyContext( GLcontext *ctx )
{
if (SWSETUP_CONTEXT(ctx)) {
if (SWSETUP_CONTEXT(ctx)->verts)
ALIGN_FREE(SWSETUP_CONTEXT(ctx)->verts);
FREE(SWSETUP_CONTEXT(ctx));
ctx->swsetup_context = 0;
}
}
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