src/mesa/main/varray.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   5  * Copyright (C) 2009  VMware, Inc.  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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #ifndef VARRAY_H
  28 #define VARRAY_H
  29
  30
  31 #include "glheader.h"
  32 #include "bufferobj.h"
  33
  34 struct gl_client_array;
  35 struct gl_context;
  36
  37
  38 /**
  39  * Compute the index of the last array element that can be safely accessed in
  40  * a vertex array.  We can really only do this when the array lives in a VBO.
  41  * The array->_MaxElement field will be updated.
  42  * Later in glDrawArrays/Elements/etc we can do some bounds checking.
  43  */
  44 static inline void
  45 _mesa_update_array_max_element(struct gl_client_array *array)
  46 {
  47    assert(array->Enabled);
  48
  49    if (array->BufferObj->Name) {
  50       GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr;
  51       GLsizeiptrARB bufSize = (GLsizeiptrARB) array->BufferObj->Size;
  52
  53       if (offset < bufSize) {
  54          const GLuint stride = array->StrideB ?
  55                                  array->StrideB : array->_ElementSize;
  56          array->_MaxElement = (bufSize - offset + stride
  57                                   - array->_ElementSize) / stride;
  58       }
  59       else {
  60          array->_MaxElement = 0;
  61       }
  62    }
  63    else {
  64       /* user-space array, no idea how big it is */
  65       array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
  66    }
  67 }
  68
  69
  70 /**
  71  * Returns a pointer to the vertex attribute data in a client array,
  72  * or the offset into the vertex buffer for an array that resides in
  73  * a vertex buffer.
  74  */
  75 static inline const GLubyte *
  76 _mesa_vertex_attrib_address(const struct gl_vertex_attrib_array *array,
  77                             const struct gl_vertex_buffer_binding *binding)
  78 {
  79    return (binding->BufferObj->Name == 0 ?
  80            array->Ptr :
  81            (const GLubyte *)(binding->Offset + array->RelativeOffset));
  82 }
  83
  84 /**
  85  * Sets the fields in a gl_client_array to values derived from a
  86  * gl_vertex_attrib_array and a gl_vertex_buffer_binding.
  87  */
  88 static inline void
  89 _mesa_update_client_array(struct gl_context *ctx,
  90                           struct gl_client_array *dst,
  91                           const struct gl_vertex_attrib_array *src,
  92                           const struct gl_vertex_buffer_binding *binding)
  93 {
  94    dst->Size = src->Size;
  95    dst->Type = src->Type;
  96    dst->Format = src->Format;
  97    dst->Stride = src->Stride;
  98    dst->StrideB = binding->Stride;
  99    dst->Ptr = _mesa_vertex_attrib_address(src, binding);
 100    dst->Enabled = src->Enabled;
 101    dst->Normalized = src->Normalized;
 102    dst->Integer = src->Integer;
 103    dst->InstanceDivisor = binding->InstanceDivisor;
 104    dst->_ElementSize = src->_ElementSize;
 105    _mesa_reference_buffer_object(ctx, &dst->BufferObj, binding->BufferObj);
 106 }
 107
 108 extern void GLAPIENTRY
 109 _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride,
 110                     const GLvoid *ptr);
 111
 112 extern void GLAPIENTRY
 113 _mesa_UnlockArraysEXT( void );
 114
 115 extern void GLAPIENTRY
 116 _mesa_LockArraysEXT(GLint first, GLsizei count);
 117
 118
 119 extern void GLAPIENTRY
 120 _mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr);
 121
 122
 123 extern void GLAPIENTRY
 124 _mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 125
 126
 127 extern void GLAPIENTRY
 128 _mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr);
 129
 130
 131 extern void GLAPIENTRY
 132 _mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,
 133                       const GLvoid *ptr);
 134
 135
 136 extern void GLAPIENTRY
 137 _mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr);
 138
 139
 140 extern void GLAPIENTRY
 141 _mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
 142                        GLsizei count, const GLvoid *ptr);
 143
 144
 145 extern void GLAPIENTRY
 146 _mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 147                        const GLvoid *ptr);
 148
 149
 150 extern void GLAPIENTRY
 151 _mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
 152                       const GLvoid *ptr);
 153
 154
 155 extern void GLAPIENTRY
 156 _mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
 157                       const GLvoid *ptr);
 158
 159
 160 extern void GLAPIENTRY
 161 _mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
 162                          GLsizei count, const GLvoid *ptr);
 163
 164
 165 extern void GLAPIENTRY
 166 _mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr);
 167
 168
 169 extern void GLAPIENTRY
 170 _mesa_FogCoordPointer(GLenum type, GLsizei stride, const GLvoid *ptr);
 171
 172
 173 extern void GLAPIENTRY
 174 _mesa_SecondaryColorPointer(GLint size, GLenum type,
 175                                GLsizei stride, const GLvoid *ptr);
 176
 177
 178 extern void GLAPIENTRY
 179 _mesa_PointSizePointerOES(GLenum type, GLsizei stride, const GLvoid *ptr);
 180
 181
 182 extern void GLAPIENTRY
 183 _mesa_VertexAttribPointer(GLuint index, GLint size, GLenum type,
 184                              GLboolean normalized, GLsizei stride,
 185                              const GLvoid *pointer);
 186
 187 void GLAPIENTRY
 188 _mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,
 189                            GLsizei stride, const GLvoid *ptr);
 190
 191
 192 extern void GLAPIENTRY
 193 _mesa_EnableVertexAttribArray(GLuint index);
 194
 195
 196 extern void GLAPIENTRY
 197 _mesa_DisableVertexAttribArray(GLuint index);
 198
 199
 200 extern void GLAPIENTRY
 201 _mesa_GetVertexAttribdv(GLuint index, GLenum pname, GLdouble *params);
 202
 203
 204 extern void GLAPIENTRY
 205 _mesa_GetVertexAttribfv(GLuint index, GLenum pname, GLfloat *params);
 206
 207
 208 extern void GLAPIENTRY
 209 _mesa_GetVertexAttribiv(GLuint index, GLenum pname, GLint *params);
 210
 211
 212 extern void GLAPIENTRY
 213 _mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params);
 214
 215
 216 extern void GLAPIENTRY
 217 _mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params);
 218
 219
 220 extern void GLAPIENTRY
 221 _mesa_GetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid **pointer);
 222
 223
 224 extern void GLAPIENTRY
 225 _mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer);
 226
 227
 228 extern void GLAPIENTRY
 229 _mesa_MultiDrawArrays( GLenum mode, const GLint *first,
 230                           const GLsizei *count, GLsizei primcount );
 231
 232 extern void GLAPIENTRY
 233 _mesa_MultiDrawElementsEXT( GLenum mode, const GLsizei *count, GLenum type,
 234                             const GLvoid **indices, GLsizei primcount );
 235
 236 extern void GLAPIENTRY
 237 _mesa_MultiDrawElementsBaseVertex( GLenum mode,
 238                                    const GLsizei *count, GLenum type,
 239                                    const GLvoid **indices, GLsizei primcount,
 240                                    const GLint *basevertex);
 241
 242 extern void GLAPIENTRY
 243 _mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
 244                               const GLsizei * count,
 245                               GLsizei primcount, GLint modestride );
 246
 247
 248 extern void GLAPIENTRY
 249 _mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
 250                                 GLenum type, const GLvoid * const * indices,
 251                                 GLsizei primcount, GLint modestride );
 252
 253 extern void GLAPIENTRY
 254 _mesa_LockArraysEXT(GLint first, GLsizei count);
 255
 256 extern void GLAPIENTRY
 257 _mesa_UnlockArraysEXT( void );
 258
 259
 260 extern void GLAPIENTRY
 261 _mesa_DrawArrays(GLenum mode, GLint first, GLsizei count);
 262
 263 extern void GLAPIENTRY
 264 _mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,
 265                    const GLvoid *indices);
 266
 267 extern void GLAPIENTRY
 268 _mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
 269                         GLenum type, const GLvoid *indices);
 270
 271 extern void GLAPIENTRY
 272 _mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
 273                              const GLvoid *indices, GLint basevertex);
 274
 275 extern void GLAPIENTRY
 276 _mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,
 277                                   GLsizei count, GLenum type,
 278                                   const GLvoid *indices,
 279                                   GLint basevertex);
 280
 281 extern void GLAPIENTRY
 282 _mesa_DrawTransformFeedback(GLenum mode, GLuint name);
 283
 284 extern void GLAPIENTRY
 285 _mesa_PrimitiveRestartIndex(GLuint index);
 286
 287
 288 extern void GLAPIENTRY
 289 _mesa_VertexAttribDivisor(GLuint index, GLuint divisor);
 290
 291 extern unsigned
 292 _mesa_primitive_restart_index(const struct gl_context *ctx, GLenum ib_type);
 293
 294 extern void GLAPIENTRY
 295 _mesa_BindVertexBuffer(GLuint bindingIndex, GLuint buffer, GLintptr offset,
 296                        GLsizei stride);
 297
 298 extern void GLAPIENTRY
 299 _mesa_VertexAttribFormat(GLuint attribIndex, GLint size, GLenum type,
 300                          GLboolean normalized, GLuint relativeOffset);
 301
 302 extern void GLAPIENTRY
 303 _mesa_VertexAttribIFormat(GLuint attribIndex, GLint size, GLenum type,
 304                           GLuint relativeOffset);
 305
 306 extern void GLAPIENTRY
 307 _mesa_VertexAttribLFormat(GLuint attribIndex, GLint size, GLenum type,
 308                           GLuint relativeOffset);
 309
 310 extern void GLAPIENTRY
 311 _mesa_VertexAttribBinding(GLuint attribIndex, GLuint bindingIndex);
 312
 313 extern void GLAPIENTRY
 314 _mesa_VertexBindingDivisor(GLuint bindingIndex, GLuint divisor);
 315
 316
 317 extern void
 318 _mesa_copy_client_array(struct gl_context *ctx,
 319                         struct gl_client_array *dst,
 320                         struct gl_client_array *src);
 321
 322 extern void
 323 _mesa_copy_vertex_attrib_array(struct gl_context *ctx,
 324                                struct gl_vertex_attrib_array *dst,
 325                                const struct gl_vertex_attrib_array *src);
 326
 327 extern void
 328 _mesa_copy_vertex_buffer_binding(struct gl_context *ctx,
 329                                  struct gl_vertex_buffer_binding *dst,
 330                                  const struct gl_vertex_buffer_binding *src);
 331
 332 extern void
 333 _mesa_print_arrays(struct gl_context *ctx);
 334
 335 extern void
 336 _mesa_init_varray( struct gl_context * ctx );
 337
 338 extern void
 339 _mesa_free_varray_data(struct gl_context *ctx);
 340
 341 #endif