src/mesa/drivers/dri/i810/i810tex.h

   1 /*
   2  * GLX Hardware Device Driver for Intel i810
   3  * Copyright (C) 1999 Keith Whitwell
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included
  13  * in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
  21  * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  *
  24  */
  25
  26 #ifndef I810TEX_INC
  27 #define I810TEX_INC
  28
  29 #include "main/mtypes.h"
  30 #include "main/mm.h"
  31
  32 #include "i810_3d_reg.h"
  33 #include "texmem.h"
  34
  35 #define I810_TEX_MAXLEVELS 11
  36
  37 /* For shared texture space managment, these texture objects may also
  38  * be used as proxies for regions of texture memory containing other
  39  * client's textures.  Such proxy textures (not to be confused with GL
  40  * proxy textures) are subject to the same LRU aging we use for our
  41  * own private textures, and thus we have a mechanism where we can
  42  * fairly decide between kicking out our own textures and those of
  43  * other clients.
  44  *
  45  * Non-local texture objects have a valid MemBlock to describe the
  46  * region managed by the other client, and can be identified by
  47  * 't->globj == 0'
  48  */
  49 struct i810_texture_object_t {
  50    driTextureObject base;
  51
  52    int Pitch;
  53    int Height;
  54    int texelBytes;
  55    char *BufAddr;
  56
  57    GLuint max_level;
  58
  59    struct {
  60       const struct gl_texture_image *image;
  61       int offset;               /* into BufAddr */
  62       int height;
  63       int internalFormat;
  64    } image[I810_TEX_MAXLEVELS];
  65
  66    GLuint Setup[I810_TEX_SETUP_SIZE];
  67    GLuint dirty;
  68
  69 };
  70
  71 void i810UpdateTextureState( struct gl_context *ctx );
  72 void i810InitTextureFuncs( struct dd_function_table *functions );
  73
  74 void i810DestroyTexObj( i810ContextPtr imesa, i810TextureObjectPtr t );
  75 int i810UploadTexImagesLocked( i810ContextPtr imesa, i810TextureObjectPtr t );
  76
  77 #endif