src/mesa/drivers/dri/i965/brw_exec.h

   1 /**************************************************************************
   2
   3 Copyright 2002 Tungsten Graphics Inc., Cedar Park, Texas.
   4
   5 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 on the rights to use, copy, modify, merge, publish, distribute, sub
  11 license, and/or sell copies of the Software, and to permit persons to whom
  12 the Software is furnished to do so, subject to the following conditions:
  13
  14 The above copyright notice and this permission notice (including the next
  15 paragraph) shall be included in all copies or substantial portions of the
  16 Software.
  17
  18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21 TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24 USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26 **************************************************************************/
  27
  28 /*
  29  * Authors:
  30  *   Keith Whitwell <keith@tungstengraphics.com>
  31  *
  32  */
  33
  34 #ifndef __BRW_EXEC_H__
  35 #define __BRW_EXEC_H__
  36
  37 #include "mtypes.h"
  38 #include "brw_attrib.h"
  39 #include "brw_draw.h"
  40
  41
  42 #define BRW_MAX_PRIM 64
  43
  44 /* Wierd implementation stuff:
  45  */
  46 #define BRW_VERT_BUFFER_SIZE (1024*16)  /* dwords == 64k */
  47 #define BRW_MAX_ATTR_CODEGEN 16
  48 #define ERROR_ATTRIB 16
  49
  50
  51
  52
  53 struct brw_exec_eval1_map {
  54    struct gl_1d_map *map;
  55    GLuint sz;
  56 };
  57
  58 struct brw_exec_eval2_map {
  59    struct gl_2d_map *map;
  60    GLuint sz;
  61 };
  62
  63
  64
  65 struct brw_exec_copied_vtx {
  66    GLfloat buffer[BRW_ATTRIB_MAX * 4 * BRW_MAX_COPIED_VERTS];
  67    GLuint nr;
  68 };
  69
  70
  71 typedef void (*brw_attrfv_func)( const GLfloat * );
  72
  73
  74 struct brw_exec_context
  75 {
  76    GLcontext *ctx;
  77    GLvertexformat vtxfmt;
  78
  79    struct {
  80       struct gl_buffer_object *bufferobj;
  81       GLubyte *buffer_map;
  82
  83       GLuint vertex_size;
  84
  85       struct brw_draw_prim prim[BRW_MAX_PRIM];
  86       GLuint prim_count;
  87
  88       GLfloat *vbptr;                /* cursor, points into buffer */
  89       GLfloat vertex[BRW_ATTRIB_MAX*4]; /* current vertex */
  90
  91       GLfloat *current[BRW_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */
  92       GLfloat CurrentFloatEdgeFlag;
  93
  94       GLuint vert_count;
  95       GLuint max_vert;
  96       struct brw_exec_copied_vtx copied;
  97
  98       brw_attrfv_func tabfv[BRW_MAX_ATTR_CODEGEN+1][4]; /* plus 1 for ERROR_ATTRIB */
  99
 100       GLubyte attrsz[BRW_ATTRIB_MAX];
 101       GLfloat *attrptr[BRW_ATTRIB_MAX];
 102       struct gl_client_array arrays[BRW_ATTRIB_MAX];
 103       const struct gl_client_array *inputs[BRW_ATTRIB_MAX];
 104    } vtx;
 105
 106
 107    struct {
 108       GLboolean recalculate_maps;
 109       struct brw_exec_eval1_map map1[BRW_ATTRIB_MAX];
 110       struct brw_exec_eval2_map map2[BRW_ATTRIB_MAX];
 111    } eval;
 112
 113    struct {
 114       GLboolean recalculate_inputs;
 115       const struct gl_client_array *inputs[BRW_ATTRIB_MAX];
 116       const struct gl_client_array *attrib_arrays[BRW_ATTRIB_MAX];
 117       const struct gl_client_array *legacy_arrays[BRW_ATTRIB_MAX];
 118
 119       struct gl_buffer_object *index_obj;
 120    } array;
 121 };
 122
 123
 124
 125 /* External API:
 126  */
 127 void brw_exec_init( GLcontext *ctx );
 128 void brw_exec_destroy( GLcontext *ctx );
 129 void brw_exec_invalidate_state( GLcontext *ctx, GLuint new_state );
 130 void brw_exec_FlushVertices( GLcontext *ctx, GLuint flags );
 131 void brw_exec_wakeup( GLcontext *ctx );
 132
 133
 134 /* Internal functions:
 135  */
 136 void brw_exec_array_init( struct brw_exec_context *exec );
 137 void brw_exec_array_destroy( struct brw_exec_context *exec );
 138
 139
 140 void brw_exec_vtx_init( struct brw_exec_context *exec );
 141 void brw_exec_vtx_destroy( struct brw_exec_context *exec );
 142 void brw_exec_vtx_flush( struct brw_exec_context *exec );
 143 void brw_exec_vtx_wrap( struct brw_exec_context *exec );
 144
 145 void brw_exec_eval_update( struct brw_exec_context *exec );
 146
 147 void brw_exec_do_EvalCoord2f( struct brw_exec_context *exec,
 148                                      GLfloat u, GLfloat v );
 149
 150 void brw_exec_do_EvalCoord1f( struct brw_exec_context *exec,
 151                                      GLfloat u);
 152
 153
 154
 155 void brw_exec_vtx_generic_init( struct brw_exec_context *exec );
 156
 157 void brw_exec_generic_attr_table_init( brw_attrfv_func (*tab)[4] );
 158
 159
 160 #endif