src/mesa/tnl/t_save_playback.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.1
   4  *
   5  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /* Author:
  26  *    Keith Whitwell <keith@tungstengraphics.com>
  27  */
  28
  29 #include "glheader.h"
  30 #include "context.h"
  31 #include "imports.h"
  32 #include "mtypes.h"
  33 #include "macros.h"
  34 #include "light.h"
  35 #include "state.h"
  36 #include "t_pipeline.h"
  37 #include "t_save_api.h"
  38 #include "t_vtx_api.h"
  39
  40 static INLINE GLint get_size( const GLfloat *f )
  41 {
  42    if (f[3] != 1.0) return 4;
  43    if (f[2] != 0.0) return 3;
  44    return 2;
  45 }
  46
  47
  48 /* Some nasty stuff still hanging on here.
  49  *
  50  * TODO - remove VB->ColorPtr, etc and just use the AttrPtr's.
  51  */
  52 static void _tnl_bind_vertex_list( GLcontext *ctx,
  53                                    const struct tnl_vertex_list *node )
  54 {
  55    TNLcontext *tnl = TNL_CONTEXT(ctx);
  56    struct vertex_buffer *VB = &tnl->vb;
  57    struct tnl_vertex_arrays *tmp = &tnl->save_inputs;
  58    GLfloat *data = node->buffer;
  59    GLuint attr, i;
  60
  61    /* Setup constant data in the VB.
  62     */
  63    VB->Count = node->count;
  64    VB->Primitive = node->prim;
  65    VB->PrimitiveCount = node->prim_count;
  66    VB->Elts = NULL;
  67    VB->NormalLengthPtr = node->normal_lengths;
  68
  69    for (attr = 0; attr <= _TNL_ATTRIB_INDEX; attr++) {
  70       if (node->attrsz[attr]) {
  71          tmp->Attribs[attr].count = node->count;
  72          tmp->Attribs[attr].data = (GLfloat (*)[4]) data;
  73          tmp->Attribs[attr].start = data;
  74          tmp->Attribs[attr].size = node->attrsz[attr];
  75          tmp->Attribs[attr].stride = node->vertex_size * sizeof(GLfloat);
  76          VB->AttribPtr[attr] = &tmp->Attribs[attr];
  77          data += node->attrsz[attr];
  78       }
  79       else {
  80          tmp->Attribs[attr].count = 1;
  81          tmp->Attribs[attr].data = (GLfloat (*)[4]) tnl->vtx.current[attr];
  82          tmp->Attribs[attr].start = tnl->vtx.current[attr];
  83          tmp->Attribs[attr].size = get_size( tnl->vtx.current[attr] );
  84          tmp->Attribs[attr].stride = 0;
  85          VB->AttribPtr[attr] = &tmp->Attribs[attr];
  86       }
  87    }
  88
  89
  90    /* Copy edgeflag to a contiguous array
  91     */
  92    if (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL) {
  93       if (node->attrsz[_TNL_ATTRIB_EDGEFLAG]) {
  94          VB->EdgeFlag = _tnl_translate_edgeflag( ctx, data,
  95                                                  node->count,
  96                                                  node->vertex_size );
  97          data++;
  98       }
  99       else
 100          VB->EdgeFlag = _tnl_import_current_edgeflag( ctx, node->count );
 101    }
 102
 103    /* Legacy pointers -- remove one day.
 104     */
 105    VB->ObjPtr = VB->AttribPtr[_TNL_ATTRIB_POS];
 106    VB->NormalPtr = VB->AttribPtr[_TNL_ATTRIB_NORMAL];
 107    VB->ColorPtr[0] = VB->AttribPtr[_TNL_ATTRIB_COLOR0];
 108    VB->ColorPtr[1] = NULL;
 109    VB->IndexPtr[0] = VB->AttribPtr[_TNL_ATTRIB_INDEX];
 110    VB->IndexPtr[1] = NULL;
 111    VB->SecondaryColorPtr[0] = VB->AttribPtr[_TNL_ATTRIB_COLOR1];
 112    VB->SecondaryColorPtr[1] = NULL;
 113    VB->FogCoordPtr = VB->AttribPtr[_TNL_ATTRIB_FOG];
 114
 115    for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
 116       VB->TexCoordPtr[i] = VB->AttribPtr[_TNL_ATTRIB_TEX0 + i];
 117    }
 118 }
 119
 120 static void _playback_copy_to_current( GLcontext *ctx,
 121                                        const struct tnl_vertex_list *node )
 122 {
 123    TNLcontext *tnl = TNL_CONTEXT(ctx);
 124    const GLfloat *data;
 125    GLuint i;
 126
 127    if (node->count)
 128       data = node->buffer + (node->count-1) * node->vertex_size;
 129    else
 130       data = node->buffer;
 131
 132    for (i = _TNL_ATTRIB_POS+1 ; i <= _TNL_ATTRIB_INDEX ; i++) {
 133       if (node->attrsz[i]) {
 134          COPY_CLEAN_4V(tnl->vtx.current[i], node->attrsz[i], data);
 135          data += node->attrsz[i];
 136       }
 137    }
 138
 139    /* Edgeflag requires special treatment:
 140     */
 141    if (node->attrsz[_TNL_ATTRIB_EDGEFLAG]) {
 142       ctx->Current.EdgeFlag = (data[0] == 1.0);
 143    }
 144
 145    /* Colormaterial -- this kindof sucks.
 146     */
 147    if (ctx->Light.ColorMaterialEnabled) {
 148       _mesa_update_color_material(ctx, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]);
 149    }
 150
 151    if (node->have_materials) {
 152       tnl->Driver.NotifyMaterialChange( ctx );
 153    }
 154
 155    /* CurrentExecPrimitive
 156     */
 157    if (node->prim_count) {
 158       GLenum mode = node->prim[node->prim_count - 1].mode;
 159       if (mode & PRIM_END)
 160          ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
 161       else
 162          ctx->Driver.CurrentExecPrimitive = (mode & PRIM_MODE_MASK);
 163    }
 164 }
 165
 166
 167 /**
 168  * Execute the buffer and save copied verts.
 169  */
 170 void _tnl_playback_vertex_list( GLcontext *ctx, void *data )
 171 {
 172    const struct tnl_vertex_list *node = (const struct tnl_vertex_list *) data;
 173    TNLcontext *tnl = TNL_CONTEXT(ctx);
 174
 175    FLUSH_CURRENT(ctx, 0);
 176
 177    if (node->prim_count > 0 && node->count > 0) {
 178
 179       if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END &&
 180           (node->prim[0].mode & PRIM_BEGIN)) {
 181
 182          /* Degenerate case: list is called inside begin/end pair and
 183           * includes operations such as glBegin or glDrawArrays.
 184           */
 185          _mesa_error( ctx, GL_INVALID_OPERATION, "displaylist recursive begin");
 186          _tnl_loopback_vertex_list( ctx, node );
 187          return;
 188       }
 189       else if (tnl->save.replay_flags) {
 190          /* Various degnerate cases: translate into immediate mode
 191           * calls rather than trying to execute in place.
 192           */
 193          _tnl_loopback_vertex_list( ctx, node );
 194          return;
 195       }
 196
 197       if (ctx->NewState)
 198          _mesa_update_state( ctx );
 199
 200       if ((ctx->VertexProgram.Enabled && !ctx->VertexProgram._Enabled) ||
 201           (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled)) {
 202          _mesa_error(ctx, GL_INVALID_OPERATION,
 203                      "glBegin (invalid vertex/fragment program)");
 204          return;
 205       }
 206
 207       _tnl_bind_vertex_list( ctx, node );
 208
 209       tnl->Driver.RunPipeline( ctx );
 210    }
 211
 212    /* Copy to current?
 213     */
 214    _playback_copy_to_current( ctx, node );
 215 }