src/mesa/vbo/vbo_exec.h

   1 /**************************************************************************
   2
   3 Copyright 2002 VMware, Inc.
   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 VMWARE 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 <keithw@vmware.com>
  31  *
  32  */
  33
  34 #ifndef VBO_EXEC_H
  35 #define VBO_EXEC_H
  36
  37
  38 #include "main/mtypes.h"
  39 #include "main/imports.h"
  40 #include "vbo.h"
  41 #include "vbo_attrib.h"
  42
  43
  44 /**
  45  * Max number of primitives (number of glBegin/End pairs) per VBO.
  46  */
  47 #define VBO_MAX_PRIM 64
  48
  49
  50 /**
  51  * Size (in bytes) of the VBO to use for glBegin/glVertex/glEnd-style rendering.
  52  */
  53 #define VBO_VERT_BUFFER_SIZE (1024 * 64)
  54
  55
  56 struct vbo_exec_eval1_map {
  57    struct gl_1d_map *map;
  58    GLuint sz;
  59 };
  60
  61 struct vbo_exec_eval2_map {
  62    struct gl_2d_map *map;
  63    GLuint sz;
  64 };
  65
  66
  67
  68 struct vbo_exec_copied_vtx {
  69    fi_type buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
  70    GLuint nr;
  71 };
  72
  73
  74 struct vbo_exec_context
  75 {
  76    struct gl_context *ctx;
  77    GLvertexformat vtxfmt;
  78    GLvertexformat vtxfmt_noop;
  79    GLboolean validating; /**< if we're in the middle of state validation */
  80
  81    struct {
  82       struct gl_buffer_object *bufferobj;
  83
  84       GLuint vertex_size;       /* in dwords */
  85
  86       struct _mesa_prim prim[VBO_MAX_PRIM];
  87       GLuint prim_count;
  88
  89       fi_type *buffer_map;
  90       fi_type *buffer_ptr;              /* cursor, points into buffer */
  91       GLuint   buffer_used;             /* in bytes */
  92       fi_type vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
  93
  94       GLuint vert_count;   /**< Number of vertices currently in buffer */
  95       GLuint max_vert;     /**< Max number of vertices allowed in buffer */
  96       struct vbo_exec_copied_vtx copied;
  97
  98       GLbitfield64 enabled;             /**< mask of enabled vbo arrays. */
  99       GLubyte attrsz[VBO_ATTRIB_MAX];   /**< nr. of attrib components (1..4) */
 100       GLenum16 attrtype[VBO_ATTRIB_MAX];  /**< GL_FLOAT, GL_DOUBLE, GL_INT, etc */
 101       GLubyte active_sz[VBO_ATTRIB_MAX];  /**< attrib size (nr. 32-bit words) */
 102
 103       /** pointers into the current 'vertex' array, declared above */
 104       fi_type *attrptr[VBO_ATTRIB_MAX];
 105
 106       struct gl_vertex_array arrays[VERT_ATTRIB_MAX];
 107
 108       /* According to program mode, the values above plus current
 109        * values are squashed down to the 32 attributes passed to the
 110        * vertex program below:
 111        */
 112       const struct gl_vertex_array *inputs[VERT_ATTRIB_MAX];
 113    } vtx;
 114
 115    struct {
 116       GLboolean recalculate_maps;
 117       struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
 118       struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
 119    } eval;
 120
 121    struct {
 122       /* Arrays and current values manipulated according to program
 123        * mode, etc.  These are the attributes as seen by vertex
 124        * programs:
 125        */
 126       const struct gl_vertex_array *inputs[VERT_ATTRIB_MAX];
 127       GLboolean recalculate_inputs;
 128    } array;
 129
 130    /* Which flags to set in vbo_exec_begin_vertices() */
 131    GLbitfield begin_vertices_flags;
 132
 133 #ifdef DEBUG
 134    GLint flush_call_depth;
 135 #endif
 136 };
 137
 138
 139
 140 void
 141 vbo_exec_init(struct gl_context *ctx);
 142
 143 void
 144 vbo_exec_destroy(struct gl_context *ctx);
 145
 146 void
 147 vbo_exec_vtx_init(struct vbo_exec_context *exec);
 148
 149 void
 150 vbo_exec_vtx_destroy(struct vbo_exec_context *exec);
 151
 152 void
 153 vbo_exec_vtx_flush(struct vbo_exec_context *exec, GLboolean unmap);
 154
 155 void
 156 vbo_exec_vtx_map(struct vbo_exec_context *exec);
 157
 158 void
 159 vbo_exec_eval_update(struct vbo_exec_context *exec);
 160
 161 void
 162 vbo_exec_do_EvalCoord2f(struct vbo_exec_context *exec, GLfloat u, GLfloat v);
 163
 164 void
 165 vbo_exec_do_EvalCoord1f(struct vbo_exec_context *exec, GLfloat u);
 166
 167 #endif