src/gallium/drivers/r300/r300_texture.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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 OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #ifndef R300_TEXTURE_H
  24 #define R300_TEXTURE_H
  25
  26 #include "pipe/p_screen.h"
  27
  28 #include "util/u_math.h"
  29
  30 #include "r300_context.h"
  31 #include "r300_reg.h"
  32
  33 void r300_init_screen_texture_functions(struct pipe_screen* screen);
  34
  35 /* Note the signature of R300_EASY_TX_FORMAT(A, R, G, B, FORMAT)... */
  36 static INLINE uint32_t r300_translate_texformat(enum pipe_format format)
  37 {
  38     switch (format) {
  39         /* X8 */
  40         case PIPE_FORMAT_I8_UNORM:
  41             return R300_EASY_TX_FORMAT(X, X, X, X, X8);
  42         /* W8Z8Y8X8 */
  43         case PIPE_FORMAT_A8R8G8B8_UNORM:
  44             return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
  45         case PIPE_FORMAT_R8G8B8A8_UNORM:
  46             return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8);
  47         /* DXT1 */
  48         case PIPE_FORMAT_DXT1_RGB:
  49             return R300_EASY_TX_FORMAT(X, Y, Z, ONE, DXT1);
  50         case PIPE_FORMAT_DXT1_RGBA:
  51             return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT1);
  52         /* DXT3 */
  53         case PIPE_FORMAT_DXT3_RGBA:
  54             return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT3);
  55         /* DXT5 */
  56         case PIPE_FORMAT_DXT5_RGBA:
  57             return R300_EASY_TX_FORMAT(Y, Z, W, X, DXT5);
  58         /* W24_FP */
  59         case PIPE_FORMAT_Z24S8_UNORM:
  60             return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
  61         default:
  62             debug_printf("r300: Implementation error: "
  63                 "Got unsupported texture format %s in %s\n",
  64                 pf_name(format), __FUNCTION__);
  65             assert(0);
  66             break;
  67     }
  68     return 0;
  69 }
  70
  71 #ifndef R300_WINSYS_H
  72
  73 boolean r300_get_texture_buffer(struct pipe_texture* texture,
  74                                 struct pipe_buffer** buffer,
  75                                 unsigned* stride);
  76
  77 #endif /* R300_WINSYS_H */
  78
  79 #endif /* R300_TEXTURE_H */