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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_decoder.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_uvd.h"
  49. #include "r600d.h"
  50.  
  51. /**
  52.  * creates an video buffer with an UVD compatible memory layout
  53.  */
  54. struct pipe_video_buffer *r600_video_buffer_create(struct pipe_context *pipe,
  55.                                                    const struct pipe_video_buffer *tmpl)
  56. {
  57.         struct r600_context *ctx = (struct r600_context *)pipe;
  58.         struct r600_texture *resources[VL_NUM_COMPONENTS] = {};
  59.         struct radeon_surface* surfaces[VL_NUM_COMPONENTS] = {};
  60.         struct pb_buffer **pbs[VL_NUM_COMPONENTS] = {};
  61.         const enum pipe_format *resource_formats;
  62.         struct pipe_video_buffer template;
  63.         struct pipe_resource templ;
  64.         unsigned i, array_size;
  65.  
  66.         assert(pipe);
  67.  
  68.         /* first create the needed resources as "normal" textures */
  69.         resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
  70.         if (!resource_formats)
  71.                 return NULL;
  72.  
  73.         array_size = tmpl->interlaced ? 2 : 1;
  74.         template = *tmpl;
  75.         template.width = align(tmpl->width, VL_MACROBLOCK_WIDTH);
  76.         template.height = align(tmpl->height / array_size, VL_MACROBLOCK_HEIGHT);
  77.  
  78.         vl_video_buffer_template(&templ, &template, resource_formats[0], 1, array_size, PIPE_USAGE_STATIC, 0);
  79.         if (ctx->chip_class < EVERGREEN || tmpl->interlaced)
  80.                 templ.flags = R600_RESOURCE_FLAG_TRANSFER;
  81.         resources[0] = (struct r600_texture *)
  82.                 pipe->screen->resource_create(pipe->screen, &templ);
  83.         if (!resources[0])
  84.                 goto error;
  85.  
  86.         if (resource_formats[1] != PIPE_FORMAT_NONE) {
  87.                 vl_video_buffer_template(&templ, &template, resource_formats[1], 1, array_size, PIPE_USAGE_STATIC, 1);
  88.                 if (ctx->chip_class < EVERGREEN || tmpl->interlaced)
  89.                         templ.flags = R600_RESOURCE_FLAG_TRANSFER;
  90.                 resources[1] = (struct r600_texture *)
  91.                         pipe->screen->resource_create(pipe->screen, &templ);
  92.                 if (!resources[1])
  93.                         goto error;
  94.         }
  95.  
  96.         if (resource_formats[2] != PIPE_FORMAT_NONE) {
  97.                 vl_video_buffer_template(&templ, &template, resource_formats[2], 1, array_size, PIPE_USAGE_STATIC, 2);
  98.                 if (ctx->chip_class < EVERGREEN || tmpl->interlaced)
  99.                         templ.flags = R600_RESOURCE_FLAG_TRANSFER;
  100.                 resources[2] = (struct r600_texture *)
  101.                         pipe->screen->resource_create(pipe->screen, &templ);
  102.                 if (!resources[2])
  103.                         goto error;
  104.         }
  105.  
  106.         for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
  107.                 if (!resources[i])
  108.                         continue;
  109.  
  110.                 pbs[i] = &resources[i]->resource.buf;
  111.                 surfaces[i] = &resources[i]->surface;
  112.         }
  113.  
  114.         ruvd_join_surfaces(ctx->ws, templ.bind, pbs, surfaces);
  115.  
  116.         for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
  117.                 if (!resources[i])
  118.                         continue;
  119.  
  120.                 /* recreate the CS handle */
  121.                 resources[i]->resource.cs_buf = ctx->ws->buffer_get_cs_handle(
  122.                         resources[i]->resource.buf);
  123.         }
  124.  
  125.         template.height *= array_size;
  126.         return vl_video_buffer_create_ex2(pipe, &template, (struct pipe_resource **)resources);
  127.  
  128. error:
  129.         for (i = 0; i < VL_NUM_COMPONENTS; ++i)
  130.                 pipe_resource_reference((struct pipe_resource **)&resources[i], NULL);
  131.  
  132.         return NULL;
  133. }
  134.  
  135. /* hw encode the number of memory banks */
  136. static uint32_t eg_num_banks(uint32_t nbanks)
  137. {
  138.         switch (nbanks) {
  139.         case 2:
  140.                 return 0;
  141.         case 4:
  142.                 return 1;
  143.         case 8:
  144.         default:
  145.                 return 2;
  146.         case 16:
  147.                 return 3;
  148.         }
  149. }
  150.  
  151. /* set the decoding target buffer offsets */
  152. static struct radeon_winsys_cs_handle* r600_uvd_set_dtb(struct ruvd_msg *msg, struct vl_video_buffer *buf)
  153. {
  154.         struct r600_screen *rscreen = (struct r600_screen*)buf->base.context->screen;
  155.         struct r600_texture *luma = (struct r600_texture *)buf->resources[0];
  156.         struct r600_texture *chroma = (struct r600_texture *)buf->resources[1];
  157.  
  158.         msg->body.decode.dt_field_mode = buf->base.interlaced;
  159.         msg->body.decode.dt_surf_tile_config |= RUVD_NUM_BANKS(eg_num_banks(rscreen->tiling_info.num_banks));
  160.  
  161.         ruvd_set_dt_surfaces(msg, &luma->surface, &chroma->surface);
  162.  
  163.         return luma->resource.cs_buf;
  164. }
  165.  
  166. /* create decoder */
  167. struct pipe_video_decoder *r600_uvd_create_decoder(struct pipe_context *context,
  168.                                                    enum pipe_video_profile profile,
  169.                                                    enum pipe_video_entrypoint entrypoint,
  170.                                                    enum pipe_video_chroma_format chroma_format,
  171.                                                    unsigned width, unsigned height,
  172.                                                    unsigned max_references, bool expect_chunked_decode)
  173. {
  174.         struct r600_context *ctx = (struct r600_context *)context;
  175.  
  176.         return ruvd_create_decoder(context, profile, entrypoint, chroma_format,
  177.                                    width, height, max_references, expect_chunked_decode,
  178.                                    ctx->ws, r600_uvd_set_dtb);
  179. }
  180.  
  181. int r600_uvd_get_video_param(struct pipe_screen *screen,
  182.                              enum pipe_video_profile profile,
  183.                              enum pipe_video_cap param)
  184. {
  185.         struct r600_screen *rscreen = (struct r600_screen *)screen;
  186.  
  187.         /* UVD 2.x limits */
  188.         if (rscreen->family < CHIP_PALM) {
  189.                 enum pipe_video_codec codec = u_reduce_video_profile(profile);
  190.                 switch (param) {
  191.                 case PIPE_VIDEO_CAP_SUPPORTED:
  192.                         /* no support for MPEG4 */
  193.                         return codec != PIPE_VIDEO_CODEC_MPEG4;
  194.                 case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
  195.                 case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
  196.                         /* and MPEG2 only with shaders */
  197.                         return codec != PIPE_VIDEO_CODEC_MPEG12;
  198.                 default:
  199.                         break;
  200.                 }
  201.         }
  202.  
  203.         return ruvd_get_video_param(screen, profile, param);
  204. }
  205.