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/mfeatures.h"
  38 #include "main/mtypes.h"
  39 #include "vbo.h"
  40 #include "vbo_attrib.h"
  41
  42
  43 #define VBO_MAX_PRIM 64
  44
  45 /* Wierd implementation stuff:
  46  */
  47 #define VBO_VERT_BUFFER_SIZE (1024*64)  /* bytes */
  48 #define VBO_MAX_ATTR_CODEGEN 16
  49 #define ERROR_ATTRIB 16
  50
  51
  52 /** Current vertex program mode */
  53 enum vp_mode {
  54    VP_NONE,   /**< fixed function */
  55    VP_NV,     /**< NV vertex program */
  56    VP_ARB     /**< ARB vertex program or GLSL vertex shader */
  57 };
  58
  59
  60 struct vbo_exec_eval1_map {
  61    struct gl_1d_map *map;
  62    GLuint sz;
  63 };
  64
  65 struct vbo_exec_eval2_map {
  66    struct gl_2d_map *map;
  67    GLuint sz;
  68 };
  69
  70
  71
  72 struct vbo_exec_copied_vtx {
  73    GLfloat buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
  74    GLuint nr;
  75 };
  76
  77
  78 typedef void (*vbo_attrfv_func)( const GLfloat * );
  79
  80
  81 struct vbo_exec_context
  82 {
  83    struct gl_context *ctx;
  84    GLvertexformat vtxfmt;
  85
  86    struct {
  87       struct gl_buffer_object *bufferobj;
  88
  89       GLuint vertex_size;       /* in dwords */
  90
  91       struct _mesa_prim prim[VBO_MAX_PRIM];
  92       GLuint prim_count;
  93
  94       GLfloat *buffer_map;
  95       GLfloat *buffer_ptr;              /* cursor, points into buffer */
  96       GLuint   buffer_used;             /* in bytes */
  97       GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
  98
  99       GLuint vert_count;
 100       GLuint max_vert;
 101       struct vbo_exec_copied_vtx copied;
 102
 103       GLubyte attrsz[VBO_ATTRIB_MAX];
 104       GLubyte active_sz[VBO_ATTRIB_MAX];
 105
 106       GLfloat *attrptr[VBO_ATTRIB_MAX];
 107       struct gl_client_array arrays[VERT_ATTRIB_MAX];
 108
 109       /* According to program mode, the values above plus current
 110        * values are squashed down to the 32 attributes passed to the
 111        * vertex program below:
 112        */
 113       enum vp_mode program_mode;
 114       GLuint enabled_flags;
 115       const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
 116    } vtx;
 117
 118
 119    struct {
 120       GLboolean recalculate_maps;
 121       struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
 122       struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
 123    } eval;
 124
 125    struct {
 126       enum vp_mode program_mode;
 127       GLuint enabled_flags;
 128       GLuint array_obj;
 129
 130       /* These just mirror the current arrayobj (todo: make arrayobj
 131        * look like this and remove the mirror):
 132        */
 133       const struct gl_client_array *legacy_array[16];
 134       const struct gl_client_array *generic_array[16];
 135
 136       /* Arrays and current values manipulated according to program
 137        * mode, etc.  These are the attributes as seen by vertex
 138        * programs:
 139        */
 140       const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
 141    } array;
 142
 143 #ifdef DEBUG
 144    GLint flush_call_depth;
 145 #endif
 146 };
 147
 148
 149
 150 /* External API:
 151  */
 152 void vbo_exec_init( struct gl_context *ctx );
 153 void vbo_exec_destroy( struct gl_context *ctx );
 154 void vbo_exec_invalidate_state( struct gl_context *ctx, GLuint new_state );
 155 void vbo_exec_FlushVertices_internal( struct gl_context *ctx, GLboolean unmap );
 156
 157 void vbo_exec_BeginVertices( struct gl_context *ctx );
 158 void vbo_exec_FlushVertices( struct gl_context *ctx, GLuint flags );
 159
 160
 161 /* Internal functions:
 162  */
 163 void vbo_exec_array_init( struct vbo_exec_context *exec );
 164 void vbo_exec_array_destroy( struct vbo_exec_context *exec );
 165
 166
 167 void vbo_exec_vtx_init( struct vbo_exec_context *exec );
 168 void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
 169
 170 #if FEATURE_beginend
 171
 172 void vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap );
 173 void vbo_exec_vtx_map( struct vbo_exec_context *exec );
 174
 175 #else /* FEATURE_beginend */
 176
 177 static INLINE void
 178 vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap )
 179 {
 180 }
 181
 182 static INLINE void
 183 vbo_exec_vtx_map( struct vbo_exec_context *exec )
 184 {
 185 }
 186
 187 #endif /* FEATURE_beginend */
 188
 189 void vbo_exec_vtx_wrap( struct vbo_exec_context *exec );
 190
 191 void vbo_exec_eval_update( struct vbo_exec_context *exec );
 192
 193 void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec,
 194                                      GLfloat u, GLfloat v );
 195
 196 void vbo_exec_do_EvalCoord1f( struct vbo_exec_context *exec,
 197                                      GLfloat u);
 198
 199 #endif