src/mesa/main/draw.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 Array type draw functions, the main workhorse of any OpenGL API
  27  * \author Keith Whitwell
  28  */
  29
  30
  31 #ifndef DRAW_H
  32 #define DRAW_H
  33
  34 #include <stdbool.h>
  35 #include "main/glheader.h"
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 struct gl_context;
  42
  43 struct _mesa_prim
  44 {
  45    GLubyte mode;    /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */
  46    bool indexed;
  47    bool begin;
  48    bool end;
  49
  50    GLuint start;
  51    GLuint count;
  52    GLint basevertex;
  53    GLuint num_instances;
  54    GLuint base_instance;
  55    GLuint draw_id;
  56
  57    GLsizeiptr indirect_offset;
  58 };
  59
  60 /* Would like to call this a "vbo_index_buffer", but this would be
  61  * confusing as the indices are not neccessarily yet in a non-null
  62  * buffer object.
  63  */
  64 struct _mesa_index_buffer
  65 {
  66    GLuint count;
  67    unsigned index_size;
  68    struct gl_buffer_object *obj;
  69    const void *ptr;
  70 };
  71
  72
  73 void
  74 _mesa_initialize_exec_dispatch(const struct gl_context *ctx,
  75                                struct _glapi_table *exec);
  76
  77
  78 void GLAPIENTRY
  79 _mesa_DrawArrays(GLenum mode, GLint first, GLsizei count);
  80
  81
  82 void GLAPIENTRY
  83 _mesa_DrawArraysInstanced(GLenum mode, GLint first, GLsizei count,
  84                           GLsizei primcount);
  85
  86
  87 void GLAPIENTRY
  88 _mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,
  89                    const GLvoid *indices);
  90
  91
  92 void GLAPIENTRY
  93 _mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
  94                         GLenum type, const GLvoid *indices);
  95
  96
  97 void GLAPIENTRY
  98 _mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
  99                              const GLvoid *indices, GLint basevertex);
 100
 101
 102 void GLAPIENTRY
 103 _mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,
 104                                   GLsizei count, GLenum type,
 105                                   const GLvoid *indices,
 106                                   GLint basevertex);
 107
 108
 109 void GLAPIENTRY
 110 _mesa_DrawTransformFeedback(GLenum mode, GLuint name);
 111
 112
 113
 114 void GLAPIENTRY
 115 _mesa_MultiDrawArrays(GLenum mode, const GLint *first,
 116                       const GLsizei *count, GLsizei primcount);
 117
 118
 119 void GLAPIENTRY
 120 _mesa_MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type,
 121                         const GLvoid *const *indices, GLsizei primcount);
 122
 123
 124 void GLAPIENTRY
 125 _mesa_MultiDrawElementsBaseVertex(GLenum mode,
 126                                   const GLsizei *count, GLenum type,
 127                                   const GLvoid * const * indices, GLsizei primcount,
 128                                   const GLint *basevertex);
 129
 130
 131 void GLAPIENTRY
 132 _mesa_MultiModeDrawArraysIBM(const GLenum * mode, const GLint * first,
 133                              const GLsizei * count,
 134                              GLsizei primcount, GLint modestride);
 135
 136
 137 void GLAPIENTRY
 138 _mesa_MultiModeDrawElementsIBM(const GLenum * mode, const GLsizei * count,
 139                                GLenum type, const GLvoid * const * indices,
 140                                GLsizei primcount, GLint modestride);
 141
 142
 143 #ifdef __cplusplus
 144 } // extern "C"
 145 #endif
 146
 147 #endif