src/mesa/vbo/vbo.h

   1 /*
   2  * mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \brief Public interface to the VBO module
  27  * \author Keith Whitwell
  28  */
  29
  30
  31 #ifndef _VBO_H
  32 #define _VBO_H
  33
  34 #include <stdbool.h>
  35 #include "main/glheader.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 struct gl_vertex_array;
  42 struct gl_context;
  43 struct gl_transform_feedback_object;
  44
  45 struct _mesa_prim
  46 {
  47    GLuint mode:8;    /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
  48    GLuint indexed:1;
  49    GLuint begin:1;
  50    GLuint end:1;
  51    GLuint weak:1;
  52    GLuint no_current_update:1;
  53    GLuint is_indirect:1;
  54    GLuint pad:18;
  55
  56    GLuint start;
  57    GLuint count;
  58    GLint basevertex;
  59    GLuint num_instances;
  60    GLuint base_instance;
  61    GLuint draw_id;
  62
  63    GLsizeiptr indirect_offset;
  64 };
  65
  66 /* Would like to call this a "vbo_index_buffer", but this would be
  67  * confusing as the indices are not neccessarily yet in a non-null
  68  * buffer object.
  69  */
  70 struct _mesa_index_buffer
  71 {
  72    GLuint count;
  73    unsigned index_size;
  74    struct gl_buffer_object *obj;
  75    const void *ptr;
  76 };
  77
  78
  79
  80 GLboolean
  81 _vbo_CreateContext(struct gl_context *ctx);
  82
  83 void
  84 _vbo_DestroyContext(struct gl_context *ctx);
  85
  86 void
  87 vbo_exec_invalidate_state(struct gl_context *ctx);
  88
  89 void
  90 _vbo_install_exec_vtxfmt(struct gl_context *ctx);
  91
  92 void
  93 vbo_initialize_exec_dispatch(const struct gl_context *ctx,
  94                              struct _glapi_table *exec);
  95
  96 void
  97 vbo_initialize_save_dispatch(const struct gl_context *ctx,
  98                              struct _glapi_table *exec);
  99
 100 void
 101 vbo_exec_FlushVertices(struct gl_context *ctx, GLuint flags);
 102
 103 void
 104 vbo_save_SaveFlushVertices(struct gl_context *ctx);
 105
 106 void
 107 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode);
 108
 109 void
 110 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode);
 111
 112 void
 113 vbo_save_EndList(struct gl_context *ctx);
 114
 115 void
 116 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *list);
 117
 118 void
 119 vbo_save_EndCallList(struct gl_context *ctx);
 120
 121
 122 void
 123 _vbo_draw_indirect(struct gl_context *ctx, GLuint mode,
 124                         struct gl_buffer_object *indirect_data,
 125                         GLsizeiptr indirect_offset, unsigned draw_count,
 126                         unsigned stride,
 127                         struct gl_buffer_object *indirect_draw_count_buffer,
 128                         GLsizeiptr indirect_draw_count_offset,
 129                         const struct _mesa_index_buffer *ib);
 130
 131
 132 void
 133 vbo_delete_minmax_cache(struct gl_buffer_object *bufferObj);
 134
 135 void
 136 vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim,
 137                        const struct _mesa_index_buffer *ib,
 138                        GLuint *min_index, GLuint *max_index, GLuint nr_prims);
 139
 140 void
 141 vbo_use_buffer_objects(struct gl_context *ctx);
 142
 143 void
 144 vbo_always_unmap_buffers(struct gl_context *ctx);
 145
 146 void
 147 vbo_sw_primitive_restart(struct gl_context *ctx,
 148                          const struct _mesa_prim *prim,
 149                          GLuint nr_prims,
 150                          const struct _mesa_index_buffer *ib,
 151                          struct gl_buffer_object *indirect);
 152
 153
 154 /**
 155  * Utility that tracks and updates the current array entries.
 156  */
 157 struct vbo_inputs
 158 {
 159    /**
 160     * Array of inputs to be set to the _DrawArrays pointer.
 161     * The array contains pointers into the _DrawVAO and to the vbo modules
 162     * current values. The array of pointers is updated incrementally
 163     * based on the current and vertex_processing_mode values below.
 164     */
 165    struct gl_vertex_array inputs[VERT_ATTRIB_MAX];
 166    /** Those VERT_BIT_'s where the inputs array point to current values. */
 167    GLbitfield current;
 168    /** Store which aliasing current values - generics or materials - are set. */
 169    gl_vertex_processing_mode vertex_processing_mode;
 170 };
 171
 172
 173 /**
 174  * Initialize inputs.
 175  */
 176 void
 177 _vbo_init_inputs(struct vbo_inputs *inputs);
 178
 179
 180 /**
 181  * Update the gl_vertex_array array inside the vbo_inputs structure
 182  * provided the current _VPMode, the provided vao and
 183  * the vao's enabled arrays filtered by the filter bitmask.
 184  */
 185 void
 186 _vbo_update_inputs(struct gl_context *ctx, struct vbo_inputs *inputs);
 187
 188
 189 const struct gl_array_attributes*
 190 _vbo_current_attrib(const struct gl_context *ctx, gl_vert_attrib attr);
 191
 192
 193 const struct gl_vertex_buffer_binding*
 194 _vbo_current_binding(const struct gl_context *ctx);
 195
 196
 197 void GLAPIENTRY
 198 _es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
 199
 200 void GLAPIENTRY
 201 _es_Normal3f(GLfloat x, GLfloat y, GLfloat z);
 202
 203 void GLAPIENTRY
 204 _es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
 205
 206 void GLAPIENTRY
 207 _es_Materialfv(GLenum face, GLenum pname, const GLfloat *params);
 208
 209 void GLAPIENTRY
 210 _es_Materialf(GLenum face, GLenum pname, GLfloat param);
 211
 212 void GLAPIENTRY
 213 _es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
 214
 215 void GLAPIENTRY
 216 _es_VertexAttrib1f(GLuint indx, GLfloat x);
 217
 218 void GLAPIENTRY
 219 _es_VertexAttrib1fv(GLuint indx, const GLfloat* values);
 220
 221 void GLAPIENTRY
 222 _es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
 223
 224 void GLAPIENTRY
 225 _es_VertexAttrib2fv(GLuint indx, const GLfloat* values);
 226
 227 void GLAPIENTRY
 228 _es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
 229
 230 void GLAPIENTRY
 231 _es_VertexAttrib3fv(GLuint indx, const GLfloat* values);
 232
 233 void GLAPIENTRY
 234 _es_VertexAttrib4fv(GLuint indx, const GLfloat* values);
 235
 236 #ifdef __cplusplus
 237 } // extern "C"
 238 #endif
 239
 240 #endif