src/mesa/drivers/dri/i830/i830_tex.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  * Adapted for use in the I830M driver:
  24  *   Jeff Hartmann <jhartmann@2d3d.com>
  25  */
  26
  27 #ifndef I830TEX_INC
  28 #define I830TEX_INC
  29
  30 #include "mtypes.h"
  31 #include "i830_context.h"
  32 #include "i830_3d_reg.h"
  33 #include "texmem.h"
  34
  35 #define I830_TEX_MAXLEVELS 10
  36
  37 struct i830_texture_object_t
  38 {
  39    driTextureObject    base;
  40
  41    int texelBytes;
  42    int Pitch;
  43    int Height;
  44    char *BufAddr;
  45    GLenum palette_format;
  46    GLuint palette[256];
  47    struct {
  48       const struct gl_texture_image *image;
  49       int offset;       /* into BufAddr */
  50       int height;
  51       int internalFormat;
  52    } image[6][I830_TEX_MAXLEVELS];
  53
  54    /* Support for multitexture.
  55     */
  56
  57    GLuint current_unit;
  58    GLuint Setup[I830_TEX_SETUP_SIZE];
  59    GLuint dirty;
  60
  61    GLfloat  max_anisotropy;
  62 };
  63
  64 void i830UpdateTextureState( GLcontext *ctx );
  65 void i830InitTextureFuncs( struct dd_function_table *functions );
  66
  67 void i830DestroyTexObj( i830ContextPtr imesa, i830TextureObjectPtr t );
  68 int i830UploadTexImagesLocked( i830ContextPtr imesa, i830TextureObjectPtr t );
  69
  70 #endif