src/gallium/drivers/freedreno/freedreno_texture.h

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * 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 OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #ifndef FREEDRENO_TEXTURE_H_
  30 #define FREEDRENO_TEXTURE_H_
  31
  32 #include "pipe/p_context.h"
  33
  34 void fd_sampler_states_bind(struct pipe_context *pctx,
  35                 enum pipe_shader_type shader, unsigned start,
  36                 unsigned nr, void **hwcso);
  37
  38 void fd_set_sampler_views(struct pipe_context *pctx,
  39                                                   enum pipe_shader_type shader,
  40                                                   unsigned start, unsigned nr,
  41                                                   struct pipe_sampler_view **views);
  42
  43 void fd_texture_init(struct pipe_context *pctx);
  44
  45 struct fd_texture_stateobj;
  46
  47 /* Both a3xx/a4xx share the same layout for the border-color buffer,
  48  * which contains the pre-swizzled (based on texture format) border
  49  * color value, with the following layout (per sampler):
  50  *
  51  *  offset | description
  52  *  -------+-------------
  53  *  0x00:  | fp16[0]   \
  54  *         | fp16[1]   |___ swizzled fp16 channel values for "small float"
  55  *         | fp16[2]   |    formats (<= 16 bits per component, !integer)
  56  *         | fp16[3]   /
  57  *  0x08:  | padding
  58  *  0x10:  | int16[0]  \
  59  *         | int16[1]  |___ swizzled int16 channels for "small integer"
  60  *         | int16[2]  |    formats (<= 16 bits per component, integer)
  61  *         | int16[3]  /
  62  *  0x18:  | padding
  63  *  0x20:  | fp32[0]   \
  64  *         | fp32[1]   |___ swizzled fp32 channel values for "large float"
  65  *         | fp32[2]   |    formats (> 16 bits per component, !integer)
  66  *         | fp32[3]   /
  67  *  0x30:  | int32[0]  \
  68  *         | int32[1]  |___ swizzled int32 channel values for "large int"
  69  *         | int32[2]  |    formats (> 16 bits per component, integer)
  70  *         | int32[3]  /
  71  */
  72 #define BORDERCOLOR_SIZE 0x40
  73 void fd_setup_border_colors(struct fd_texture_stateobj *tex, void *ptr,
  74                 unsigned offset);
  75
  76 #endif /* FREEDRENO_TEXTURE_H_ */