git.sesse.net Git - x264/blob - common/opencl.h

   1 /*****************************************************************************
   2  * opencl.h: OpenCL structures and defines
   3  *****************************************************************************
   4  * Copyright (C) 2012-2013 x264 project
   5  *
   6  * Authors: Steve Borho <sborho@multicorewareinc.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  21  *
  22  * This program is also available under a commercial proprietary license.
  23  * For more information, contact us at licensing@x264.com.
  24  *****************************************************************************/
  25
  26 #ifndef X264_OPENCL_H
  27 #define X264_OPENCL_H
  28
  29 #include "x264.h"
  30 #include "common/common.h"
  31
  32 #include <CL/cl.h>
  33
  34 /* Number of downscale resolutions to use for motion search */
  35 #define NUM_IMAGE_SCALES 4
  36
  37 /* Number of PCIe copies that can be queued before requiring a flush */
  38 #define MAX_FINISH_COPIES 1024
  39
  40 /* Size (in bytes) of the page-locked buffer used for PCIe xfers */
  41 #define PAGE_LOCKED_BUF_SIZE 32 * 1024 * 1024
  42
  43 typedef struct
  44 {
  45     cl_context       context;
  46     cl_device_id     device;
  47     cl_command_queue queue;
  48
  49     cl_program  lookahead_program;
  50     cl_int      last_buf;
  51
  52     cl_mem      page_locked_buffer;
  53     char       *page_locked_ptr;
  54     int         pl_occupancy;
  55
  56     struct
  57     {
  58         void *src;
  59         void *dest;
  60         int   bytes;
  61     } copies[MAX_FINISH_COPIES];
  62     int         num_copies;
  63
  64     int         b_device_AMD_SI;
  65     int         b_fatal_error;
  66     int         lookahead_thread_pri;
  67     int         opencl_thread_pri;
  68
  69     /* downscale lowres luma */
  70     cl_kernel   downscale_hpel_kernel;
  71     cl_kernel   downscale_kernel1;
  72     cl_kernel   downscale_kernel2;
  73     cl_mem      luma_16x16_image[2];
  74
  75     /* weightp filtering */
  76     cl_kernel   weightp_hpel_kernel;
  77     cl_kernel   weightp_scaled_images_kernel;
  78     cl_mem      weighted_scaled_images[NUM_IMAGE_SCALES];
  79     cl_mem      weighted_luma_hpel;
  80
  81     /* intra */
  82     cl_kernel   memset_kernel;
  83     cl_kernel   intra_kernel;
  84     cl_kernel   rowsum_intra_kernel;
  85     cl_mem      row_satds[2];
  86
  87     /* hierarchical motion estimation */
  88     cl_kernel   hme_kernel;
  89     cl_kernel   subpel_refine_kernel;
  90     cl_mem      mv_buffers[2];
  91     cl_mem      lowres_mv_costs;
  92     cl_mem      mvp_buffer;
  93
  94     /* bidir */
  95     cl_kernel   mode_select_kernel;
  96     cl_kernel   rowsum_inter_kernel;
  97     cl_mem      lowres_costs[2];
  98     cl_mem      frame_stats[2]; /* cost_est, cost_est_aq, intra_mbs */
  99 } x264_opencl_t;
 100
 101 typedef struct
 102 {
 103     cl_mem scaled_image2Ds[NUM_IMAGE_SCALES];
 104     cl_mem luma_hpel;
 105     cl_mem inv_qscale_factor;
 106     cl_mem intra_cost;
 107     cl_mem lowres_mvs0;
 108     cl_mem lowres_mvs1;
 109     cl_mem lowres_mv_costs0;
 110     cl_mem lowres_mv_costs1;
 111 } x264_frame_opencl_t;
 112
 113 typedef struct x264_frame x264_frame;
 114
 115 int x264_opencl_init( x264_t *h );
 116 int x264_opencl_init_lookahead( x264_t *h );
 117 void x264_opencl_free( x264_t *h );
 118 void x264_opencl_frame_delete( x264_frame *frame );
 119
 120 #endif