src/gallium/drivers/radeonsi/si_uvd.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2011 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 /*
  29  * Authors:
  30  *      Christian König <christian.koenig@amd.com>
  31  *
  32  */
  33
  34 #include "si_pipe.h"
  35 #include "radeon/radeon_uvd.h"
  36
  37 /**
  38  * creates an video buffer with an UVD compatible memory layout
  39  */
  40 struct pipe_video_buffer *si_video_buffer_create(struct pipe_context *pipe,
  41                                                  const struct pipe_video_buffer *tmpl)
  42 {
  43         struct si_context *ctx = (struct si_context *)pipe;
  44         struct r600_texture *resources[VL_NUM_COMPONENTS] = {};
  45         struct radeon_surface *surfaces[VL_NUM_COMPONENTS] = {};
  46         struct pb_buffer **pbs[VL_NUM_COMPONENTS] = {};
  47         const enum pipe_format *resource_formats;
  48         struct pipe_video_buffer template;
  49         struct pipe_resource templ;
  50         unsigned i, array_size;
  51
  52         assert(pipe);
  53
  54         /* first create the needed resources as "normal" textures */
  55         resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
  56         if (!resource_formats)
  57                 return NULL;
  58
  59         array_size = tmpl->interlaced ? 2 : 1;
  60         template = *tmpl;
  61         template.width = align(tmpl->width, VL_MACROBLOCK_WIDTH);
  62         template.height = align(tmpl->height / array_size, VL_MACROBLOCK_HEIGHT);
  63
  64         vl_video_buffer_template(&templ, &template, resource_formats[0], 1, array_size, PIPE_USAGE_STATIC, 0);
  65         /* TODO: get tiling working */
  66         templ.bind = PIPE_BIND_LINEAR;
  67         resources[0] = (struct r600_texture *)
  68                 pipe->screen->resource_create(pipe->screen, &templ);
  69         if (!resources[0])
  70                 goto error;
  71
  72         if (resource_formats[1] != PIPE_FORMAT_NONE) {
  73                 vl_video_buffer_template(&templ, &template, resource_formats[1], 1, array_size, PIPE_USAGE_STATIC, 1);
  74                 templ.bind = PIPE_BIND_LINEAR;
  75                 resources[1] = (struct r600_texture *)
  76                         pipe->screen->resource_create(pipe->screen, &templ);
  77                 if (!resources[1])
  78                         goto error;
  79         }
  80
  81         if (resource_formats[2] != PIPE_FORMAT_NONE) {
  82                 vl_video_buffer_template(&templ, &template, resource_formats[2], 1, array_size, PIPE_USAGE_STATIC, 2);
  83                 templ.bind = PIPE_BIND_LINEAR;
  84                 resources[2] = (struct r600_texture *)
  85                         pipe->screen->resource_create(pipe->screen, &templ);
  86                 if (!resources[2])
  87                         goto error;
  88         }
  89
  90         for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
  91                 if (!resources[i])
  92                         continue;
  93
  94                 surfaces[i] = & resources[i]->surface;
  95                 pbs[i] = &resources[i]->resource.buf;
  96         }
  97
  98         ruvd_join_surfaces(ctx->b.ws, templ.bind, pbs, surfaces);
  99
 100         for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
 101                 if (!resources[i])
 102                         continue;
 103
 104                 /* recreate the CS handle */
 105                 resources[i]->resource.cs_buf = ctx->b.ws->buffer_get_cs_handle(
 106                         resources[i]->resource.buf);
 107         }
 108
 109         template.height *= array_size;
 110         return vl_video_buffer_create_ex2(pipe, &template, (struct pipe_resource **)resources);
 111
 112 error:
 113         for (i = 0; i < VL_NUM_COMPONENTS; ++i)
 114                 pipe_resource_reference((struct pipe_resource **)&resources[i], NULL);
 115
 116         return NULL;
 117 }
 118
 119 /* set the decoding target buffer offsets */
 120 static struct radeon_winsys_cs_handle* si_uvd_set_dtb(struct ruvd_msg *msg, struct vl_video_buffer *buf)
 121 {
 122         struct r600_texture *luma = (struct r600_texture *)buf->resources[0];
 123         struct r600_texture *chroma = (struct r600_texture *)buf->resources[1];
 124
 125         msg->body.decode.dt_field_mode = buf->base.interlaced;
 126
 127         ruvd_set_dt_surfaces(msg, &luma->surface, &chroma->surface);
 128
 129         return luma->resource.cs_buf;
 130 }
 131
 132 /**
 133  * creates an UVD compatible decoder
 134  */
 135 struct pipe_video_codec *si_uvd_create_decoder(struct pipe_context *context,
 136                                                const struct pipe_video_codec *templ)
 137 {
 138         return ruvd_create_decoder(context, templ, si_uvd_set_dtb);
 139 }