src/gallium/drivers/radeon/radeon_vcn_dec_jpeg.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2018 Advanced Micro Devices, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include <assert.h>
  29 #include <stdio.h>
  30
  31 #include "pipe/p_video_codec.h"
  32
  33 #include "util/u_memory.h"
  34 #include "util/u_video.h"
  35
  36 #include "radeonsi/si_pipe.h"
  37 #include "radeon_video.h"
  38 #include "radeon_vcn_dec.h"
  39
  40 static struct pb_buffer *radeon_jpeg_get_decode_param(struct radeon_decoder *dec,
  41                                         struct pipe_video_buffer *target,
  42                                         struct pipe_picture_desc *picture)
  43 {
  44         struct si_texture *luma = (struct si_texture *)
  45                                 ((struct vl_video_buffer *)target)->resources[0];
  46         struct si_texture *chroma = (struct si_texture *)
  47                                 ((struct vl_video_buffer *)target)->resources[1];
  48
  49         dec->jpg.bsd_size = align(dec->bs_size, 128);
  50         dec->jpg.dt_luma_top_offset = luma->surface.u.gfx9.surf_offset;
  51         if (target->buffer_format == PIPE_FORMAT_NV12) {
  52                 dec->jpg.dt_chroma_top_offset = chroma->surface.u.gfx9.surf_offset;
  53                 dec->jpg.dt_pitch = luma->surface.u.gfx9.surf_pitch * luma->surface.blk_w;
  54         }
  55         else if (target->buffer_format == PIPE_FORMAT_YUYV)
  56                 dec->jpg.dt_pitch = luma->surface.u.gfx9.surf_pitch;
  57         dec->jpg.dt_uv_pitch = dec->jpg.dt_pitch / 2;
  58
  59         return luma->buffer.buf;
  60 }
  61
  62 /* send a bitstream buffer command */
  63 static void send_cmd_bitstream(struct radeon_decoder *dec,
  64                      struct pb_buffer* buf, uint32_t off,
  65                      enum radeon_bo_usage usage, enum radeon_bo_domain domain)
  66 {
  67         /* TODO */
  68 }
  69
  70 /* send a target buffer command */
  71 static void send_cmd_target(struct radeon_decoder *dec,
  72                      struct pb_buffer* buf, uint32_t off,
  73                      enum radeon_bo_usage usage, enum radeon_bo_domain domain)
  74 {
  75         /* TODO */
  76 }
  77
  78 /**
  79  * send cmd for vcn jpeg
  80  */
  81 void send_cmd_jpeg(struct radeon_decoder *dec,
  82                            struct pipe_video_buffer *target,
  83                            struct pipe_picture_desc *picture)
  84 {
  85         struct pb_buffer *dt;
  86         struct rvid_buffer *bs_buf;
  87
  88         bs_buf = &dec->bs_buffers[dec->cur_buffer];
  89
  90         memset(dec->bs_ptr, 0, align(dec->bs_size, 128) - dec->bs_size);
  91         dec->ws->buffer_unmap(bs_buf->res->buf);
  92
  93         dt = radeon_jpeg_get_decode_param(dec, target, picture);
  94
  95         send_cmd_bitstream(dec, bs_buf->res->buf,
  96                  0, RADEON_USAGE_READ, RADEON_DOMAIN_GTT);
  97         send_cmd_target(dec, dt, 0,
  98                  RADEON_USAGE_WRITE, RADEON_DOMAIN_VRAM);
  99 }