src/mesa/tnl/t_context.c

   1 /* $Id: t_context.c,v 1.11 2001/01/13 18:28:20 keithw Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *   Keith Whitwell <keithw@valinux.com>
  28  */
  29
  30
  31 #include "glheader.h"
  32 #include "macros.h"
  33 #include "mtypes.h"
  34 #include "mem.h"
  35 #include "dlist.h"
  36 #include "vtxfmt.h"
  37
  38 #include "t_context.h"
  39 #include "t_array_api.h"
  40 #include "t_eval_api.h"
  41 #include "t_imm_alloc.h"
  42 #include "t_imm_api.h"
  43 #include "t_imm_exec.h"
  44 #include "t_imm_dlist.h"
  45 #include "t_pipeline.h"
  46 #include "tnl.h"
  47
  48 #ifndef THREADS
  49 struct immediate *_tnl_CurrentInput = NULL;
  50 #endif
  51
  52
  53 void
  54 _tnl_MakeCurrent( GLcontext *ctx,
  55                   GLframebuffer *drawBuffer,
  56                   GLframebuffer *readBuffer )
  57 {
  58 #ifndef THREADS
  59    SET_IMMEDIATE( ctx, TNL_CURRENT_IM(ctx) );
  60 #endif
  61 }
  62
  63
  64 static void
  65 install_driver_callbacks( GLcontext *ctx )
  66 {
  67    ctx->Driver.NewList = _tnl_NewList;
  68    ctx->Driver.EndList = _tnl_EndList;
  69    ctx->Driver.FlushVertices = _tnl_flush_vertices;
  70    ctx->Driver.MakeCurrent = _tnl_MakeCurrent;
  71    ctx->Driver.BeginCallList = _tnl_BeginCallList;
  72    ctx->Driver.EndCallList = _tnl_EndCallList;
  73
  74    ctx->Driver.RenderTabElts = _tnl_render_tab_elts;
  75    ctx->Driver.RenderTabVerts = _tnl_render_tab_verts;
  76 }
  77
  78
  79
  80 GLboolean
  81 _tnl_CreateContext( GLcontext *ctx )
  82 {
  83    TNLcontext *tnl;
  84
  85    /* Create the TNLcontext structure
  86     */
  87    ctx->swtnl_context = tnl = CALLOC( sizeof(TNLcontext) );
  88
  89    if (!tnl) {
  90       return GL_FALSE;
  91    }
  92
  93    /* Initialize the VB.
  94     */
  95    tnl->vb.Size = MAX2( IMM_SIZE,
  96                         ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES);
  97
  98
  99    /* Initialize tnl state and tnl->vtxfmt.
 100     */
 101    _tnl_dlist_init( ctx );
 102    _tnl_array_init( ctx );
 103    _tnl_imm_init( ctx );
 104    _tnl_eval_init( ctx );
 105    _tnl_install_pipeline( ctx, _tnl_default_pipeline );
 106
 107
 108    tnl->NeedProjCoords = GL_TRUE;
 109
 110    /* Hook our functions into exec and compile dispatch tables.
 111     */
 112    _mesa_install_exec_vtxfmt( ctx, &tnl->vtxfmt );
 113    _mesa_install_save_vtxfmt( ctx, &tnl->vtxfmt );
 114    ctx->Save->CallList = _mesa_save_CallList;   /* fixme */
 115    ctx->Save->CallLists = _mesa_save_CallLists;
 116    ctx->Save->EvalMesh1 = _mesa_save_EvalMesh1; /* fixme */
 117    ctx->Save->EvalMesh2 = _mesa_save_EvalMesh2;
 118    ctx->Save->Begin = _tnl_save_Begin;
 119
 120    /* Set a few default values in the driver struct.
 121     */
 122    install_driver_callbacks(ctx);
 123    ctx->Driver.NeedFlush = FLUSH_UPDATE_CURRENT;
 124    ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
 125    ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
 126    return GL_TRUE;
 127 }
 128
 129
 130 void
 131 _tnl_DestroyContext( GLcontext *ctx )
 132 {
 133    TNLcontext *tnl = TNL_CONTEXT(ctx);
 134
 135 /*     _tnl_dlist_destroy( ctx ); */
 136    _tnl_array_destroy( ctx );
 137    _tnl_imm_destroy( ctx );
 138 /*     _tnl_eval_destroy( ctx ); */
 139    _tnl_destroy_pipeline( ctx );
 140
 141    FREE(tnl);
 142    ctx->swtnl_context = 0;
 143 }
 144
 145
 146 void
 147 _tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
 148 {
 149    TNLcontext *tnl = TNL_CONTEXT(ctx);
 150
 151    if (new_state & _NEW_ARRAY) {
 152       struct immediate *IM = TNL_CURRENT_IM(ctx);
 153       IM->ArrayEltFlags = ~ctx->Array._Enabled;
 154       IM->ArrayEltFlush = !ctx->Array.LockCount;
 155       IM->ArrayEltIncr = ctx->Array.Vertex.Enabled ? 1 : 0;
 156       tnl->pipeline.run_input_changes |= ctx->Array.NewState; /* overkill */
 157    }
 158
 159    tnl->pipeline.run_state_changes |= new_state;
 160    tnl->pipeline.build_state_changes |= (new_state &
 161                                          tnl->pipeline.build_state_trigger);
 162
 163    tnl->eval.EvalNewState |= new_state;
 164 }
 165
 166
 167 void
 168 _tnl_wakeup_exec( GLcontext *ctx )
 169 {
 170    TNLcontext *tnl = TNL_CONTEXT(ctx);
 171
 172    install_driver_callbacks(ctx);
 173    ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT;
 174
 175    /* Hook our functions into exec and compile dispatch tables.
 176     */
 177    _mesa_install_exec_vtxfmt( ctx, &tnl->vtxfmt );
 178
 179    /* Call all appropriate driver callbacks to revive state.
 180     */
 181    _tnl_MakeCurrent( ctx, ctx->DrawBuffer, ctx->ReadBuffer );
 182
 183    /* Assume we haven't been getting state updates either:
 184     */
 185    _tnl_InvalidateState( ctx, ~0 );
 186    tnl->pipeline.run_input_changes = ~0;
 187 }
 188
 189
 190 void
 191 _tnl_wakeup_save_exec( GLcontext *ctx )
 192 {
 193    TNLcontext *tnl = TNL_CONTEXT(ctx);
 194
 195    _tnl_wakeup_exec( ctx );
 196    _mesa_install_save_vtxfmt( ctx, &tnl->vtxfmt );
 197    ctx->Save->CallList = _mesa_save_CallList;   /* fixme */
 198    ctx->Save->CallLists = _mesa_save_CallLists;
 199    ctx->Save->EvalMesh1 = _mesa_save_EvalMesh1; /* fixme */
 200    ctx->Save->EvalMesh2 = _mesa_save_EvalMesh2;
 201    ctx->Save->Begin = _tnl_save_Begin;
 202 }
 203
 204
 205 void
 206 _tnl_need_projected_coords( GLcontext *ctx, GLboolean mode )
 207 {
 208    TNLcontext *tnl = TNL_CONTEXT(ctx);
 209    if (tnl->NeedProjCoords != mode) {
 210       tnl->NeedProjCoords = mode;
 211       _tnl_InvalidateState( ctx, _NEW_PROJECTION );
 212    }
 213 }