src/gallium/drivers/nouveau/nouveau_vp3_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 <nouveau.h>
  24
  25 #include "pipe/p_defines.h"
  26 #include "vl/vl_video_buffer.h"
  27 #include "util/u_video.h"
  28
  29 struct nouveau_vp3_video_buffer {
  30    struct pipe_video_buffer base;
  31    unsigned num_planes, valid_ref;
  32    struct pipe_resource *resources[VL_NUM_COMPONENTS];
  33    struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
  34    struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
  35    struct pipe_surface *surfaces[VL_NUM_COMPONENTS * 2];
  36 };
  37
  38 #define SLICE_SIZE 0x200
  39 #define VP_OFFSET 0x200
  40 #define COMM_OFFSET 0x500
  41
  42 #define NOUVEAU_VP3_BSP_RESERVED_SIZE 0x700
  43
  44 #define NOUVEAU_VP3_DEBUG_FENCE 0
  45
  46 #if NOUVEAU_VP3_DEBUG_FENCE
  47 # define NOUVEAU_VP3_VIDEO_QDEPTH 1
  48 #else
  49 # define NOUVEAU_VP3_VIDEO_QDEPTH 2
  50 #endif
  51
  52 #define SUBC_BSP(m) dec->bsp_idx, (m)
  53 #define SUBC_VP(m) dec->vp_idx, (m)
  54 #define SUBC_PPP(m) dec->ppp_idx, (m)
  55
  56 union pipe_desc {
  57    struct pipe_picture_desc *base;
  58    struct pipe_mpeg12_picture_desc *mpeg12;
  59    struct pipe_mpeg4_picture_desc *mpeg4;
  60    struct pipe_vc1_picture_desc *vc1;
  61    struct pipe_h264_picture_desc *h264;
  62 };
  63
  64 struct nouveau_vp3_decoder {
  65    struct pipe_video_codec base;
  66    struct nouveau_client *client;
  67    struct nouveau_object *channel[3], *bsp, *vp, *ppp;
  68    struct nouveau_pushbuf *pushbuf[3];
  69
  70 #if NOUVEAU_VP3_DEBUG_FENCE
  71    /* dump fence and comm, as needed.. */
  72    unsigned *fence_map;
  73    struct comm *comm;
  74
  75    struct nouveau_bo *fence_bo;
  76 #endif
  77
  78    struct nouveau_bo *fw_bo, *bitplane_bo;
  79
  80    // array size max_references + 2, contains unpostprocessed images
  81    // added at the end of ref_bo is a tmp array
  82    // tmp is an array for h264, with each member being used for a ref frame or current
  83    // target.. size = (((mb(w)*((mb(h)+1)&~1))+3)>>2)<<8 * (max_references+1)
  84    // for other codecs, it simply seems that size = w*h is enough
  85    // unsure what it's supposed to contain..
  86    struct nouveau_bo *ref_bo;
  87
  88    struct nouveau_bo *inter_bo[2];
  89
  90    struct nouveau_bo *bsp_bo[NOUVEAU_VP3_VIDEO_QDEPTH];
  91
  92    // bo's used by each cycle:
  93
  94    // bsp_bo: contains raw bitstream data and parameters for BSP and VP.
  95    // inter_bo: contains data shared between BSP and VP
  96    // ref_bo: reference image data, used by PPP and VP
  97    // bitplane_bo: contain bitplane data (similar to ref_bo), used by BSP only
  98    // fw_bo: used by VP only.
  99
 100    // Needed amount of copies in optimal case:
 101    // 2 copies of inter_bo, VP would process the last inter_bo, while BSP is
 102    // writing out a new set.
 103    // NOUVEAU_VP3_VIDEO_QDEPTH copies of bsp_bo. We don't want to block the
 104    // pipeline ever, and give shaders a chance to run as well.
 105
 106    struct {
 107       struct nouveau_vp3_video_buffer *vidbuf;
 108       unsigned last_used;
 109       unsigned field_pic_flag : 1;
 110       unsigned decoded_top : 1;
 111       unsigned decoded_bottom : 1;
 112       unsigned decoded_first : 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    /* End of the bsp bo where new data should be appended between one begin/end
 119     * frame.
 120     */
 121    char *bsp_ptr;
 122 };
 123
 124 struct comm {
 125    uint32_t bsp_cur_index; // 000
 126    uint32_t byte_ofs; // 004
 127    uint32_t status[0x10]; // 008
 128    uint32_t pos[0x10]; // 048
 129    uint8_t pad[0x100 - 0x88]; // 0a0 bool comm_encrypted
 130
 131    uint32_t pvp_cur_index; // 100
 132    uint32_t acked_byte_ofs; // 104
 133    uint32_t status_vp[0x10]; // 108
 134    uint16_t mb_y[0x10]; //148
 135    uint32_t pvp_stage; // 168 0xeeXX
 136    uint16_t parse_endpos_index; // 16c
 137    uint16_t irq_index; // 16e
 138    uint8_t  irq_470[0x10]; // 170
 139    uint32_t irq_pos[0x10]; // 180
 140    uint32_t parse_endpos[0x10]; // 1c0
 141 };
 142
 143 static inline uint32_t nouveau_vp3_video_align(uint32_t h)
 144 {
 145    return ((h+0x3f)&~0x3f);
 146 };
 147
 148 static inline uint32_t mb(uint32_t coord)
 149 {
 150    return (coord + 0xf)>>4;
 151 }
 152
 153 static inline uint32_t mb_half(uint32_t coord)
 154 {
 155    return (coord + 0x1f)>>5;
 156 }
 157
 158 static inline uint64_t
 159 nouveau_vp3_video_addr(struct nouveau_vp3_decoder *dec, struct nouveau_vp3_video_buffer *target)
 160 {
 161    uint64_t ret;
 162    if (target)
 163       ret = dec->ref_stride * target->valid_ref;
 164    else
 165       ret = dec->ref_stride * (dec->base.max_references+1);
 166    return dec->ref_bo->offset + ret;
 167 }
 168
 169 static inline void
 170 nouveau_vp3_ycbcr_offsets(struct nouveau_vp3_decoder *dec, uint32_t *y2,
 171                           uint32_t *cbcr, uint32_t *cbcr2)
 172 {
 173    uint32_t w = mb(dec->base.width), size;
 174    *y2 = mb_half(dec->base.height)*w;
 175    *cbcr = *y2 * 2;
 176    *cbcr2 = *cbcr + w * (nouveau_vp3_video_align(dec->base.height)>>6);
 177
 178    /* The check here should never fail because it means a bug
 179     * in the code rather than a bug in hardware..
 180     */
 181    size = (2 * (*cbcr2 - *cbcr) + *cbcr) << 8;
 182    if (size > dec->ref_stride) {
 183       debug_printf("Overshot ref_stride (%u) with size %u and ofs (%u,%u,%u)\n",
 184                    dec->ref_stride, size, *y2<<8, *cbcr<<8, *cbcr2<<8);
 185       *y2 = *cbcr = *cbcr2 = 0;
 186       assert(size <= dec->ref_stride);
 187    }
 188 }
 189
 190 static inline void
 191 nouveau_vp3_inter_sizes(struct nouveau_vp3_decoder *dec, uint32_t slice_count,
 192                         uint32_t *slice_size, uint32_t *bucket_size,
 193                         uint32_t *ring_size)
 194 {
 195    *slice_size = (SLICE_SIZE * slice_count)>>8;
 196    if (u_reduce_video_profile(dec->base.profile) == PIPE_VIDEO_FORMAT_MPEG12)
 197       *bucket_size = 0;
 198    else
 199       *bucket_size = mb(dec->base.width) * 3;
 200    *ring_size = (dec->inter_bo[0]->size >> 8) - *bucket_size - *slice_size;
 201 }
 202
 203 struct pipe_video_buffer *
 204 nouveau_vp3_video_buffer_create(struct pipe_context *pipe,
 205                                 const struct pipe_video_buffer *templat,
 206                                 int flags);
 207
 208 void
 209 nouveau_vp3_decoder_init_common(struct pipe_video_codec *decoder);
 210
 211 int
 212 nouveau_vp3_load_firmware(struct nouveau_vp3_decoder *dec,
 213                           enum pipe_video_profile profile,
 214                           unsigned chipset);
 215
 216 void
 217 nouveau_vp3_bsp_begin(struct nouveau_vp3_decoder *dec);
 218
 219 void
 220 nouveau_vp3_bsp_next(struct nouveau_vp3_decoder *dec, unsigned num_buffers,
 221                      const void *const *data, const unsigned *num_bytes);
 222
 223 uint32_t
 224 nouveau_vp3_bsp_end(struct nouveau_vp3_decoder *dec, union pipe_desc desc);
 225
 226 void
 227 nouveau_vp3_vp_caps(struct nouveau_vp3_decoder *dec, union pipe_desc desc,
 228                     struct nouveau_vp3_video_buffer *target, unsigned comm_seq,
 229                     unsigned *caps, unsigned *is_ref,
 230                     struct nouveau_vp3_video_buffer *refs[16]);
 231
 232 int
 233 nouveau_vp3_screen_get_video_param(struct pipe_screen *pscreen,
 234                                    enum pipe_video_profile profile,
 235                                    enum pipe_video_entrypoint entrypoint,
 236                                    enum pipe_video_cap param);
 237
 238 bool
 239 nouveau_vp3_screen_video_supported(struct pipe_screen *screen,
 240                                    enum pipe_format format,
 241                                    enum pipe_video_profile profile,
 242                                    enum pipe_video_entrypoint entrypoint);