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  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 <sys/types.h>
  35. #include <assert.h>
  36. #include <errno.h>
  37. #include <unistd.h>
  38.  
  39. #include "pipe/p_video_codec.h"
  40.  
  41. #include "util/u_memory.h"
  42. #include "util/u_video.h"
  43.  
  44. #include "vl/vl_defines.h"
  45. #include "vl/vl_mpeg12_decoder.h"
  46.  
  47. #include "r600_pipe.h"
  48. #include "radeon/radeon_video.h"
  49. #include "radeon/radeon_uvd.h"
  50. #include "r600d.h"
  51.  
  52. /**
  53.  * creates an video buffer with an UVD compatible memory layout
  54.  */
  55. struct pipe_video_buffer *r600_video_buffer_create(struct pipe_context *pipe,
  56.                                                    const struct pipe_video_buffer *tmpl)
  57. {
  58.         struct r600_context *ctx = (struct r600_context *)pipe;
  59.         struct r600_texture *resources[VL_NUM_COMPONENTS] = {};
  60.         struct radeon_surf* surfaces[VL_NUM_COMPONENTS] = {};
  61.         struct pb_buffer **pbs[VL_NUM_COMPONENTS] = {};
  62.         const enum pipe_format *resource_formats;
  63.         struct pipe_video_buffer template;
  64.         struct pipe_resource templ;
  65.         unsigned i, array_size;
  66.  
  67.         assert(pipe);
  68.  
  69.         /* first create the needed resources as "normal" textures */
  70.         resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
  71.         if (!resource_formats)
  72.                 return NULL;
  73.  
  74.         array_size = tmpl->interlaced ? 2 : 1;
  75.         template = *tmpl;
  76.         template.width = align(tmpl->width, VL_MACROBLOCK_WIDTH);
  77.         template.height = align(tmpl->height / array_size, VL_MACROBLOCK_HEIGHT);
  78.  
  79.         vl_video_buffer_template(&templ, &template, resource_formats[0], 1, array_size, PIPE_USAGE_DEFAULT, 0);
  80.         if (ctx->b.chip_class < EVERGREEN || tmpl->interlaced)
  81.                 templ.bind = PIPE_BIND_LINEAR;
  82.         resources[0] = (struct r600_texture *)
  83.                 pipe->screen->resource_create(pipe->screen, &templ);
  84.         if (!resources[0])
  85.                 goto error;
  86.  
  87.         if (resource_formats[1] != PIPE_FORMAT_NONE) {
  88.                 vl_video_buffer_template(&templ, &template, resource_formats[1], 1, array_size, PIPE_USAGE_DEFAULT, 1);
  89.                 if (ctx->b.chip_class < EVERGREEN || tmpl->interlaced)
  90.                         templ.bind = PIPE_BIND_LINEAR;
  91.                 resources[1] = (struct r600_texture *)
  92.                         pipe->screen->resource_create(pipe->screen, &templ);
  93.                 if (!resources[1])
  94.                         goto error;
  95.         }
  96.  
  97.         if (resource_formats[2] != PIPE_FORMAT_NONE) {
  98.                 vl_video_buffer_template(&templ, &template, resource_formats[2], 1, array_size, PIPE_USAGE_DEFAULT, 2);
  99.                 if (ctx->b.chip_class < EVERGREEN || tmpl->interlaced)
  100.                         templ.bind = PIPE_BIND_LINEAR;
  101.                 resources[2] = (struct r600_texture *)
  102.                         pipe->screen->resource_create(pipe->screen, &templ);
  103.                 if (!resources[2])
  104.                         goto error;
  105.         }
  106.  
  107.         for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
  108.                 if (!resources[i])
  109.                         continue;
  110.  
  111.                 pbs[i] = &resources[i]->resource.buf;
  112.                 surfaces[i] = &resources[i]->surface;
  113.         }
  114.  
  115.         rvid_join_surfaces(ctx->b.ws, templ.bind, pbs, surfaces);
  116.  
  117.         for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
  118.                 if (!resources[i])
  119.                         continue;
  120.  
  121.                 /* recreate the CS handle */
  122.                 resources[i]->resource.cs_buf = ctx->b.ws->buffer_get_cs_handle(
  123.                         resources[i]->resource.buf);
  124.                 resources[i]->resource.gpu_address = ctx->b.ws->buffer_get_virtual_address(
  125.                         resources[i]->resource.cs_buf);
  126.         }
  127.  
  128.         template.height *= array_size;
  129.         return vl_video_buffer_create_ex2(pipe, &template, (struct pipe_resource **)resources);
  130.  
  131. error:
  132.         for (i = 0; i < VL_NUM_COMPONENTS; ++i)
  133.                 pipe_resource_reference((struct pipe_resource **)&resources[i], NULL);
  134.  
  135.         return NULL;
  136. }
  137.  
  138. /* hw encode the number of memory banks */
  139. static uint32_t eg_num_banks(uint32_t nbanks)
  140. {
  141.         switch (nbanks) {
  142.         case 2:
  143.                 return 0;
  144.         case 4:
  145.                 return 1;
  146.         case 8:
  147.         default:
  148.                 return 2;
  149.         case 16:
  150.                 return 3;
  151.         }
  152. }
  153.  
  154. /* set the decoding target buffer offsets */
  155. static struct radeon_winsys_cs_handle* r600_uvd_set_dtb(struct ruvd_msg *msg, struct vl_video_buffer *buf)
  156. {
  157.         struct r600_screen *rscreen = (struct r600_screen*)buf->base.context->screen;
  158.         struct r600_texture *luma = (struct r600_texture *)buf->resources[0];
  159.         struct r600_texture *chroma = (struct r600_texture *)buf->resources[1];
  160.  
  161.         msg->body.decode.dt_field_mode = buf->base.interlaced;
  162.         msg->body.decode.dt_surf_tile_config |= RUVD_NUM_BANKS(eg_num_banks(rscreen->b.tiling_info.num_banks));
  163.  
  164.         ruvd_set_dt_surfaces(msg, &luma->surface, &chroma->surface);
  165.  
  166.         return luma->resource.cs_buf;
  167. }
  168.  
  169. /* create decoder */
  170. struct pipe_video_codec *r600_uvd_create_decoder(struct pipe_context *context,
  171.                                                    const struct pipe_video_codec *templat)
  172. {
  173.         return ruvd_create_decoder(context, templat, r600_uvd_set_dtb);
  174. }
  175.