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/* $Id: ac_context.c,v 1.1 2003-02-28 11:49:40 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.
*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "glheader.h"
#include "macros.h"
#include "imports.h"
#include "mmath.h"
#include "mtypes.h"
#include "array_cache/ac_context.h"
/*
* Initialize the array fallbacks. That is, by default the fallback arrays
* point into the current vertex attribute values in ctx->Current.Attrib[]
*/
static void _ac_fallbacks_init( GLcontext *ctx )
{
ACcontext *ac = AC_CONTEXT(ctx);
struct gl_client_array *cl;
GLuint i;
cl = &ac->Fallback.Normal;
cl->Size = 3;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_NORMAL];
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
cl = &ac->Fallback.Color;
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
cl = &ac->Fallback.SecondaryColor;
cl->Size = 3;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_COLOR1];
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
cl = &ac->Fallback.FogCoord;
cl->Size = 1;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) &ctx->Current.Attrib[VERT_ATTRIB_FOG];
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
cl = &ac->Fallback.Index;
cl->Size = 1;
cl->Type = GL_UNSIGNED_INT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) &ctx->Current.Index;
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
cl = &ac->Fallback.TexCoord[i];
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) ctx->Current.Attrib[VERT_ATTRIB_TEX0 + i];
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
}
cl = &ac->Fallback.EdgeFlag;
cl->Size = 1;
cl->Type = GL_UNSIGNED_BYTE;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) &ctx->Current.EdgeFlag;
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
for (i = 0; i < VERT_ATTRIB_MAX; i++) {
cl = &ac->Fallback.Attrib[i];
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 0;
cl->Ptr = (void *) ctx->Current.Attrib[i];
cl->Enabled = 1;
cl->Flags = CA_CLIENT_DATA; /* hack */
}
}
/*
* Initialize the array cache pointers, types, strides, etc.
*/
static void _ac_cache_init( GLcontext *ctx )
{
ACcontext *ac = AC_CONTEXT(ctx);
struct gl_client_array *cl;
GLuint size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
GLuint i;
cl = &ac->Cache.Vertex;
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 4 * sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
cl = &ac->Cache.Normal;
cl->Size = 3;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 3 * sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
cl = &ac->Cache.Color;
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 4 * sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
cl = &ac->Cache.SecondaryColor;
cl->Size = 3;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 4 * sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
cl = &ac->Cache.FogCoord;
cl->Size = 1;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
cl = &ac->Cache.Index;
cl->Size = 1;
cl->Type = GL_UNSIGNED_INT;
cl->Stride = 0;
cl->StrideB = sizeof(GLuint);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
cl = &ac->Cache.TexCoord[i];
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 4 * sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
}
cl = &ac->Cache.EdgeFlag;
cl->Size = 1;
cl->Type = GL_UNSIGNED_BYTE;
cl->Stride = 0;
cl->StrideB = sizeof(GLubyte);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
for (i = 0 ; i < VERT_ATTRIB_MAX; i++) {
cl = &ac->Cache.Attrib[i];
cl->Size = 4;
cl->Type = GL_FLOAT;
cl->Stride = 0;
cl->StrideB = 4 * sizeof(GLfloat);
cl->Ptr = MALLOC( cl->StrideB * size );
cl->Enabled = 1;
cl->Flags = 0;
}
}
/* This storage used to hold translated client data if type or stride
* need to be fixed.
*/
static void _ac_elts_init( GLcontext *ctx )
{
ACcontext *ac = AC_CONTEXT(ctx);
GLuint size = 1000;
ac->Elts = (GLuint *)MALLOC( sizeof(GLuint) * size );
ac->elt_size = size;
}
static void _ac_raw_init( GLcontext *ctx )
{
ACcontext *ac = AC_CONTEXT(ctx);
GLuint i;
ac->Raw.Color = ac->Fallback.Color;
ac->Raw.EdgeFlag = ac->Fallback.EdgeFlag;
ac->Raw.FogCoord = ac->Fallback.FogCoord;
ac->Raw.Index = ac->Fallback.Index;
ac->Raw.Normal = ac->Fallback.Normal;
ac->Raw.SecondaryColor = ac->Fallback.SecondaryColor;
ac->Raw.Vertex = ctx->Array.Vertex;
ac->IsCached.Color = GL_FALSE;
ac->IsCached.EdgeFlag = GL_FALSE;
ac->IsCached.FogCoord = GL_FALSE;
ac->IsCached.Index = GL_FALSE;
ac->IsCached.Normal = GL_FALSE;
ac->IsCached.SecondaryColor = GL_FALSE;
ac->IsCached.Vertex = GL_FALSE;
for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
ac->Raw.TexCoord[i] = ac->Fallback.TexCoord[i];
ac->IsCached.TexCoord[i] = GL_FALSE;
}
for (i = 0 ; i < VERT_ATTRIB_MAX ; i++) {
ac->Raw.Attrib[i] = ac->Fallback.Attrib[i];
ac->IsCached.Attrib[i] = GL_FALSE;
}
}
GLboolean _ac_CreateContext( GLcontext *ctx )
{
ctx->acache_context = CALLOC(sizeof(ACcontext));
if (ctx->acache_context) {
_ac_cache_init( ctx );
_ac_fallbacks_init( ctx );
_ac_raw_init( ctx );
_ac_elts_init( ctx );
return GL_TRUE;
}
return GL_FALSE;
}
void _ac_DestroyContext( GLcontext *ctx )
{
ACcontext *ac = AC_CONTEXT(ctx);
GLint i;
if (ac->Cache.Vertex.Ptr) FREE( ac->Cache.Vertex.Ptr );
if (ac->Cache.Normal.Ptr) FREE( ac->Cache.Normal.Ptr );
if (ac->Cache.Color.Ptr) FREE( ac->Cache.Color.Ptr );
if (ac->Cache.SecondaryColor.Ptr) FREE( ac->Cache.SecondaryColor.Ptr );
if (ac->Cache.EdgeFlag.Ptr) FREE( ac->Cache.EdgeFlag.Ptr );
if (ac->Cache.Index.Ptr) FREE( ac->Cache.Index.Ptr );
if (ac->Cache.FogCoord.Ptr) FREE( ac->Cache.FogCoord.Ptr );
for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
if (ac->Cache.TexCoord[i].Ptr)
FREE( ac->Cache.TexCoord[i].Ptr );
}
for (i = 0; i < VERT_ATTRIB_MAX; i++) {
if (ac->Cache.Attrib[i].Ptr)
FREE( ac->Cache.Attrib[i].Ptr );
}
if (ac->Elts) FREE( ac->Elts );
/* Free the context structure itself */
FREE(ac);
ctx->acache_context = NULL;
}
void _ac_InvalidateState( GLcontext *ctx, GLuint new_state )
{
AC_CONTEXT(ctx)->NewState |= new_state;
AC_CONTEXT(ctx)->NewArrayState |= ctx->Array.NewState;
}