src/gallium/drivers/freedreno/freedreno_texture.h

   1 /*
   2  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #ifndef FREEDRENO_TEXTURE_H_
  28 #define FREEDRENO_TEXTURE_H_
  29
  30 #include "pipe/p_context.h"
  31
  32 void fd_sampler_states_bind(struct pipe_context *pctx,
  33                 enum pipe_shader_type shader, unsigned start,
  34                 unsigned nr, void **hwcso);
  35
  36 void fd_set_sampler_views(struct pipe_context *pctx,
  37                                                   enum pipe_shader_type shader,
  38                                                   unsigned start, unsigned nr,
  39                                                   struct pipe_sampler_view **views);
  40
  41 void fd_texture_init(struct pipe_context *pctx);
  42
  43 struct fd_texture_stateobj;
  44
  45 /* Both a3xx/a4xx share the same layout for the border-color buffer,
  46  * which contains the pre-swizzled (based on texture format) border
  47  * color value, with the following layout (per sampler):
  48  *
  49  *  offset | description
  50  *  -------+-------------
  51  *  0x00:  | fp16[0]   \
  52  *         | fp16[1]   |___ swizzled fp16 channel values for "small float"
  53  *         | fp16[2]   |    formats (<= 16 bits per component, !integer)
  54  *         | fp16[3]   /
  55  *  0x08:  | padding
  56  *  0x10:  | int16[0]  \
  57  *         | int16[1]  |___ swizzled int16 channels for "small integer"
  58  *         | int16[2]  |    formats (<= 16 bits per component, integer)
  59  *         | int16[3]  /
  60  *  0x18:  | padding
  61  *  0x20:  | fp32[0]   \
  62  *         | fp32[1]   |___ swizzled fp32 channel values for "large float"
  63  *         | fp32[2]   |    formats (> 16 bits per component, !integer)
  64  *         | fp32[3]   /
  65  *  0x30:  | int32[0]  \
  66  *         | int32[1]  |___ swizzled int32 channel values for "large int"
  67  *         | int32[2]  |    formats (> 16 bits per component, integer)
  68  *         | int32[3]  /
  69  */
  70 #define BORDERCOLOR_SIZE 0x40
  71 void fd_setup_border_colors(struct fd_texture_stateobj *tex, void *ptr,
  72                 unsigned offset);
  73
  74 #endif /* FREEDRENO_TEXTURE_H_ */