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/* $Id: ss_context.c,v 1.10 2001/02/16 00:35:35 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 "ss_interp.h"
#include "swrast_setup.h"
#include "tnl/t_context.h"
#define _SWSETUP_NEW_VERTS (_NEW_RENDERMODE| \
_NEW_LIGHT| \
_NEW_TEXTURE| \
_NEW_COLOR| \
_NEW_FOG| \
_NEW_POINT)
#define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT)
/* Dispatch from these fixed entrypoints to the state-dependent
* functions.
*
* The design of swsetup suggests that we could really program
* ctx->Driver.TriangleFunc directly from _swsetup_RenderStart, and
* avoid this second level of indirection. However, this is more
* convient for fallback cases in hardware rasterization drivers.
*/
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 );
}
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_vb_init( ctx );
_swsetup_interp_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;
}
}
void
_swsetup_RenderPrimitive( GLcontext *ctx, GLenum mode )
{
SWSETUP_CONTEXT(ctx)->render_prim = mode;
}
void
_swsetup_RenderStart( GLcontext *ctx )
{
SScontext *swsetup = SWSETUP_CONTEXT(ctx);
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
GLuint new_state = swsetup->NewState;
if (new_state & _SWSETUP_NEW_RENDERINDEX) {
_swsetup_choose_trifuncs( ctx );
}
if (new_state & _SWSETUP_NEW_VERTS) {
_swsetup_choose_rastersetup_func( ctx );
}
swsetup->NewState = 0;
if (VB->ClipMask && VB->importable_data)
VB->import_data( ctx,
VB->importable_data,
VEC_NOT_WRITEABLE|VEC_BAD_STRIDE);
/* Ugly hack: Tie up some dangling pointers for flat/twoside code
* in ss_tritmp.h and ss_interptmp.h
*/
if ((ctx->_TriangleCaps & DD_SEPERATE_SPECULAR) == 0 ||
ctx->Texture._ReallyEnabled == 0) {
VB->SecondaryColorPtr[0] = VB->ColorPtr[0];
VB->SecondaryColorPtr[1] = VB->ColorPtr[1];
}
}
void
_swsetup_RenderFinish( GLcontext *ctx )
{
_swrast_flush( ctx );
}
void
_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state )
{
SScontext *swsetup = SWSETUP_CONTEXT(ctx);
swsetup->NewState |= new_state;
if (new_state & _SWSETUP_NEW_INTERP) {
swsetup->RenderInterp = _swsetup_validate_interp;
swsetup->RenderCopyPV = _swsetup_validate_copypv;
}
}
void
_swsetup_RenderInterp( GLcontext *ctx, GLfloat t,
GLuint dst, GLuint out, GLuint in,
GLboolean force_boundary )
{
SWSETUP_CONTEXT(ctx)->RenderInterp( ctx, t, dst, out, in, force_boundary );
}
void
_swsetup_RenderCopyPV( GLcontext *ctx, GLuint dst, GLuint src )
{
SWSETUP_CONTEXT(ctx)->RenderCopyPV( ctx, dst, src );
}
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