src/mesa/vbo/vbo_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 __VBO_EXEC_H__
  35 #define __VBO_EXEC_H__
  36
  37 #include "main/mtypes.h"
  38 #include "vbo.h"
  39 #include "vbo_attrib.h"
  40
  41
  42 #define VBO_MAX_PRIM 64
  43
  44 /* Wierd implementation stuff:
  45  */
  46 #define VBO_VERT_BUFFER_SIZE (1024*64)  /* bytes */
  47 #define VBO_MAX_ATTR_CODEGEN 16
  48 #define ERROR_ATTRIB 16
  49
  50
  51
  52
  53 struct vbo_exec_eval1_map {
  54    struct gl_1d_map *map;
  55    GLuint sz;
  56 };
  57
  58 struct vbo_exec_eval2_map {
  59    struct gl_2d_map *map;
  60    GLuint sz;
  61 };
  62
  63
  64
  65 struct vbo_exec_copied_vtx {
  66    GLfloat buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
  67    GLuint nr;
  68 };
  69
  70
  71 typedef void (*vbo_attrfv_func)( const GLfloat * );
  72
  73
  74 struct vbo_exec_context
  75 {
  76    GLcontext *ctx;
  77    GLvertexformat vtxfmt;
  78
  79    struct {
  80       struct gl_buffer_object *bufferobj;
  81
  82       GLuint vertex_size;       /* in dwords */
  83
  84       struct _mesa_prim prim[VBO_MAX_PRIM];
  85       GLuint prim_count;
  86
  87       GLfloat *buffer_map;
  88       GLfloat *buffer_ptr;              /* cursor, points into buffer */
  89       GLuint   buffer_used;             /* in bytes */
  90       GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
  91
  92       GLuint vert_count;
  93       GLuint max_vert;
  94       struct vbo_exec_copied_vtx copied;
  95
  96       GLubyte attrsz[VBO_ATTRIB_MAX];
  97       GLubyte active_sz[VBO_ATTRIB_MAX];
  98
  99       GLfloat *attrptr[VBO_ATTRIB_MAX];
 100       struct gl_client_array arrays[VBO_ATTRIB_MAX];
 101
 102       /* According to program mode, the values above plus current
 103        * values are squashed down to the 32 attributes passed to the
 104        * vertex program below:
 105        */
 106       GLuint program_mode;
 107       GLuint enabled_flags;
 108       const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
 109    } vtx;
 110
 111
 112    struct {
 113       GLboolean recalculate_maps;
 114       struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
 115       struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
 116    } eval;
 117
 118    struct {
 119       GLuint program_mode;
 120       GLuint enabled_flags;
 121       GLuint array_obj;
 122
 123       /* These just mirror the current arrayobj (todo: make arrayobj
 124        * look like this and remove the mirror):
 125        */
 126       const struct gl_client_array *legacy_array[16];
 127       const struct gl_client_array *generic_array[16];
 128
 129       /* Arrays and current values manipulated according to program
 130        * mode, etc.  These are the attributes as seen by vertex
 131        * programs:
 132        */
 133       const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
 134    } array;
 135 };
 136
 137
 138
 139 /* External API:
 140  */
 141 void vbo_exec_init( GLcontext *ctx );
 142 void vbo_exec_destroy( GLcontext *ctx );
 143 void vbo_exec_invalidate_state( GLcontext *ctx, GLuint new_state );
 144 void vbo_exec_FlushVertices_internal( GLcontext *ctx, GLboolean unmap );
 145
 146 void vbo_exec_BeginVertices( GLcontext *ctx );
 147 void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags );
 148
 149
 150 /* Internal functions:
 151  */
 152 void vbo_exec_array_init( struct vbo_exec_context *exec );
 153 void vbo_exec_array_destroy( struct vbo_exec_context *exec );
 154
 155
 156 void vbo_exec_vtx_init( struct vbo_exec_context *exec );
 157 void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
 158 void vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap );
 159 void vbo_exec_vtx_map( struct vbo_exec_context *exec );
 160 void vbo_exec_vtx_wrap( struct vbo_exec_context *exec );
 161
 162 void vbo_exec_eval_update( struct vbo_exec_context *exec );
 163
 164 void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec,
 165                                      GLfloat u, GLfloat v );
 166
 167 void vbo_exec_do_EvalCoord1f( struct vbo_exec_context *exec,
 168                                      GLfloat u);
 169
 170 extern GLboolean
 171 vbo_validate_shaders(GLcontext *ctx);
 172
 173 #endif