src/gallium/drivers/nvc0/nvc0_video.h

   1 /*
   2  * Copyright 2011-2013 Maarten Lankhorst
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include "nvc0_context.h"
  24 #include "nvc0_screen.h"
  25
  26 #include "vl/vl_decoder.h"
  27 #include "vl/vl_video_buffer.h"
  28 #include "vl/vl_types.h"
  29
  30 #include "util/u_video.h"
  31
  32 #define SLICE_SIZE 0x200
  33 #define VP_OFFSET 0x200
  34 #define COMM_OFFSET 0x500
  35
  36 //#define NVC0_DEBUG_FENCE 1
  37
  38 #ifdef NVC0_DEBUG_FENCE
  39 # define NVC0_VIDEO_QDEPTH 1
  40 #else
  41 # define NVC0_VIDEO_QDEPTH 2
  42 #endif
  43
  44 #define SUBC_BSP(m) dec->bsp_idx, (m)
  45 #define SUBC_VP(m) dec->vp_idx, (m)
  46 #define SUBC_PPP(m) dec->ppp_idx, (m)
  47
  48 union pipe_desc {
  49    struct pipe_picture_desc *base;
  50    struct pipe_mpeg12_picture_desc *mpeg12;
  51    struct pipe_mpeg4_picture_desc *mpeg4;
  52    struct pipe_vc1_picture_desc *vc1;
  53    struct pipe_h264_picture_desc *h264;
  54 };
  55
  56 struct nvc0_video_buffer {
  57    struct pipe_video_buffer base;
  58    unsigned num_planes, valid_ref;
  59    struct pipe_resource *resources[VL_NUM_COMPONENTS];
  60    struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
  61    struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
  62    struct pipe_surface *surfaces[VL_NUM_COMPONENTS * 2];
  63 };
  64
  65 struct nvc0_decoder {
  66    struct pipe_video_decoder base;
  67    struct nouveau_client *client;
  68    struct nouveau_object *channel[3], *bsp, *vp, *ppp;
  69    struct nouveau_pushbuf *pushbuf[3];
  70
  71 #ifdef NVC0_DEBUG_FENCE
  72    /* dump fence and comm, as needed.. */
  73    unsigned *fence_map;
  74    struct comm *comm;
  75
  76    struct nouveau_bo *fence_bo;
  77 #endif
  78
  79    struct nouveau_bo *fw_bo, *bitplane_bo;
  80
  81    // array size max_references + 2, contains unpostprocessed images
  82    // added at the end of ref_bo is a tmp array
  83    // tmp is an array for h264, with each member being used for a ref frame or current
  84    // target.. size = (((mb(w)*((mb(h)+1)&~1))+3)>>2)<<8 * (max_references+1)
  85    // for other codecs, it simply seems that size = w*h is enough
  86    // unsure what it's supposed to contain..
  87    struct nouveau_bo *ref_bo;
  88
  89    struct nouveau_bo *inter_bo[2];
  90
  91    struct nouveau_bo *bsp_bo[NVC0_VIDEO_QDEPTH];
  92
  93    // bo's used by each cycle:
  94
  95    // bsp_bo: contains raw bitstream data and parameters for BSP and VP.
  96    // inter_bo: contains data shared between BSP and VP
  97    // ref_bo: reference image data, used by PPP and VP
  98    // bitplane_bo: contain bitplane data (similar to ref_bo), used by BSP only
  99    // fw_bo: used by VP only.
 100
 101    // Needed amount of copies in optimal case:
 102    // 2 copies of inter_bo, VP would process the last inter_bo, while BSP is
 103    // writing out a new set.
 104    // NVC0_VIDEO_QDEPTH copies of bsp_bo. We don't want to block the pipeline ever,
 105    // and give shaders a chance to run as well.
 106
 107    struct {
 108       struct nvc0_video_buffer *vidbuf;
 109       unsigned last_used;
 110       unsigned field_pic_flag : 1;
 111       unsigned decoded_top : 1;
 112       unsigned decoded_bottom : 1;
 113    } refs[17];
 114    unsigned fence_seq, fw_sizes, last_frame_num, tmp_stride, ref_stride;
 115
 116    unsigned bsp_idx, vp_idx, ppp_idx;
 117 };
 118
 119 struct comm {
 120         uint32_t bsp_cur_index; // 000
 121         uint32_t byte_ofs; // 004
 122         uint32_t status[0x10]; // 008
 123         uint32_t pos[0x10]; // 048
 124         uint8_t pad[0x100 - 0x88]; // 0a0 bool comm_encrypted
 125
 126         uint32_t pvp_cur_index; // 100
 127         uint32_t acked_byte_ofs; // 104
 128         uint32_t status_vp[0x10]; // 108
 129         uint16_t mb_y[0x10]; //148
 130         uint32_t pvp_stage; // 168 0xeeXX
 131         uint16_t parse_endpos_index; // 16c
 132         uint16_t irq_index; // 16e
 133         uint8_t  irq_470[0x10]; // 170
 134         uint32_t irq_pos[0x10]; // 180
 135         uint32_t parse_endpos[0x10]; // 1c0
 136 };
 137
 138 static INLINE uint32_t nvc0_video_align(uint32_t h)
 139 {
 140    return ((h+0x3f)&~0x3f);
 141 };
 142
 143 static INLINE uint32_t mb(uint32_t coord)
 144 {
 145    return (coord + 0xf)>>4;
 146 }
 147
 148 static INLINE uint32_t mb_half(uint32_t coord)
 149 {
 150    return (coord + 0x1f)>>5;
 151 }
 152
 153 static INLINE uint64_t
 154 nvc0_video_addr(struct nvc0_decoder *dec, struct nvc0_video_buffer *target)
 155 {
 156    uint64_t ret;
 157    if (target)
 158       ret = dec->ref_stride * target->valid_ref;
 159    else
 160       ret = dec->ref_stride * (dec->base.max_references+1);
 161    return dec->ref_bo->offset + ret;
 162 }
 163
 164 static INLINE void
 165 nvc0_decoder_ycbcr_offsets(struct nvc0_decoder *dec, uint32_t *y2,
 166                            uint32_t *cbcr, uint32_t *cbcr2)
 167 {
 168    uint32_t w = mb(dec->base.width), size;
 169    *y2 = mb_half(dec->base.height)*w;
 170    *cbcr = *y2 * 2;
 171    *cbcr2 = *cbcr + w * (nvc0_video_align(dec->base.height)>>6);
 172
 173    /* The check here should never fail because it means a bug
 174     * in the code rather than a bug in hardware..
 175     */
 176    size = (2 * (*cbcr2 - *cbcr) + *cbcr) << 8;
 177    if (size > dec->ref_stride) {
 178       debug_printf("Overshot ref_stride (%u) with size %u and ofs (%u,%u,%u)\n",
 179                    dec->ref_stride, size, *y2<<8, *cbcr<<8, *cbcr2<<8);
 180       *y2 = *cbcr = *cbcr2 = 0;
 181       assert(size <= dec->ref_stride);
 182    }
 183 }
 184
 185 static INLINE void
 186 nvc0_decoder_inter_sizes(struct nvc0_decoder *dec, uint32_t slice_count,
 187                          uint32_t *slice_size, uint32_t *bucket_size,
 188                          uint32_t *ring_size)
 189 {
 190    *slice_size = (SLICE_SIZE * slice_count)>>8;
 191    if (u_reduce_video_profile(dec->base.profile) == PIPE_VIDEO_CODEC_MPEG12)
 192       *bucket_size = 0;
 193    else
 194       *bucket_size = mb(dec->base.width) * 3;
 195    *ring_size = (dec->inter_bo[0]->size >> 8) - *bucket_size - *slice_size;
 196 }
 197
 198 extern unsigned
 199 nvc0_decoder_bsp(struct nvc0_decoder *dec, union pipe_desc desc,
 200                  struct nvc0_video_buffer *target,
 201                  unsigned comm_seq, unsigned num_buffers,
 202                  const void *const *data, const unsigned *num_bytes,
 203                  unsigned *vp_caps, unsigned *is_ref,
 204                  struct nvc0_video_buffer *refs[16]);
 205
 206 extern void nvc0_decoder_vp_caps(struct nvc0_decoder *dec,
 207                                  union pipe_desc desc,
 208                                  struct nvc0_video_buffer *target,
 209                                  unsigned comm_seq,
 210                                  unsigned *caps, unsigned *is_ref,
 211                                  struct nvc0_video_buffer *refs[16]);
 212
 213 extern void
 214 nvc0_decoder_vp(struct nvc0_decoder *dec, union pipe_desc desc,
 215                 struct nvc0_video_buffer *target, unsigned comm_seq,
 216                 unsigned caps, unsigned is_ref,
 217                 struct nvc0_video_buffer *refs[16]);
 218
 219 extern void
 220 nvc0_decoder_ppp(struct nvc0_decoder *dec, union pipe_desc desc,
 221                  struct nvc0_video_buffer *target, unsigned comm_seq);