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 struct r300_texture;
  34
  35 void r300_init_screen_texture_functions(struct pipe_screen* screen);
  36
  37 unsigned r300_texture_get_stride(struct r300_texture* tex, unsigned level);
  38
  39 /* Note the signature of R300_EASY_TX_FORMAT(A, R, G, B, FORMAT)... */
  40 static INLINE uint32_t r300_translate_texformat(enum pipe_format format)
  41 {
  42     switch (format) {
  43         /* X8 */
  44         case PIPE_FORMAT_I8_UNORM:
  45             return R300_EASY_TX_FORMAT(X, X, X, X, X8);
  46         /* W8Z8Y8X8 */
  47         case PIPE_FORMAT_A8R8G8B8_UNORM:
  48             return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
  49         case PIPE_FORMAT_R8G8B8A8_UNORM:
  50             return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8);
  51         case PIPE_FORMAT_A8R8G8B8_SRGB:
  52             return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8) |
  53                 R300_TX_FORMAT_GAMMA;
  54         case PIPE_FORMAT_R8G8B8A8_SRGB:
  55             return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8) |
  56                 R300_TX_FORMAT_GAMMA;
  57         /* DXT1 */
  58         case PIPE_FORMAT_DXT1_RGB:
  59             return R300_EASY_TX_FORMAT(X, Y, Z, ONE, DXT1);
  60         case PIPE_FORMAT_DXT1_RGBA:
  61             return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT1);
  62         /* DXT3 */
  63         case PIPE_FORMAT_DXT3_RGBA:
  64             return R300_EASY_TX_FORMAT(X, Y, Z, W, DXT3);
  65         /* DXT5 */
  66         case PIPE_FORMAT_DXT5_RGBA:
  67             return R300_EASY_TX_FORMAT(Y, Z, W, X, DXT5);
  68         /* YVYU422 */
  69         case PIPE_FORMAT_YCBCR:
  70             return R300_EASY_TX_FORMAT(X, Y, Z, ONE, YVYU422) |
  71                 R300_TX_FORMAT_YUV_TO_RGB;
  72         /* W24_FP */
  73         case PIPE_FORMAT_Z24S8_UNORM:
  74             return R300_EASY_TX_FORMAT(X, X, X, X, W24_FP);
  75         /* Z5_Y6_X5 */
  76         case PIPE_FORMAT_R16_SNORM:
  77             return R300_EASY_TX_FORMAT(X, X, X, X, Z5Y6X5);
  78         default:
  79             debug_printf("r300: Implementation error: "
  80                 "Got unsupported texture format %s in %s\n",
  81                 pf_name(format), __FUNCTION__);
  82             assert(0);
  83             break;
  84     }
  85     return 0;
  86 }
  87
  88 #ifndef R300_WINSYS_H
  89
  90 boolean r300_get_texture_buffer(struct pipe_texture* texture,
  91                                 struct pipe_buffer** buffer,
  92                                 unsigned* stride);
  93
  94 #endif /* R300_WINSYS_H */
  95
  96 #endif /* R300_TEXTURE_H */