src/gallium/drivers/v3d/v3d_format_table.h

   1 /*
   2  * Copyright © 2014-2018 Broadcom
   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
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #define V3D_OUTPUT_IMAGE_FORMAT_NO 255
  25
  26 #include <stdbool.h>
  27 #include <stdint.h>
  28
  29 struct v3d_format {
  30         /** Set if the pipe format is defined in the table. */
  31         bool present;
  32
  33         /** One of V3D33_OUTPUT_IMAGE_FORMAT_*, or OUTPUT_IMAGE_FORMAT_NO */
  34         uint8_t rt_type;
  35
  36         /** One of V3D33_TEXTURE_DATA_FORMAT_*. */
  37         uint8_t tex_type;
  38
  39         /**
  40          * Swizzle to apply to the RGBA shader output for storing to the tile
  41          * buffer, to the RGBA tile buffer to produce shader input (for
  42          * blending), and for turning the rgba8888 texture sampler return
  43          * value into shader rgba values.
  44          */
  45         uint8_t swizzle[4];
  46
  47         /* Whether the return value is 16F/I/UI or 32F/I/UI. */
  48         uint8_t return_size;
  49
  50         /* If return_size == 32, how many channels are returned by texturing.
  51          * 16 always returns 2 pairs of 16 bit values.
  52          */
  53         uint8_t return_channels;
  54 };