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  1. /*
  2.  * Copyright 2011 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 "vl/vl_decoder.h"
  24. #include "vl/vl_video_buffer.h"
  25.  
  26. #include "nouveau_screen.h"
  27. #include "nouveau_context.h"
  28. #include "nouveau_video.h"
  29.  
  30. #include "nouveau_buffer.h"
  31. #include "util/u_video.h"
  32. #include "util/u_format.h"
  33. #include "util/u_sampler.h"
  34.  
  35. static int
  36. nouveau_vpe_init(struct nouveau_decoder *dec) {
  37.    int ret;
  38.    if (dec->cmds)
  39.       return 0;
  40.    ret = nouveau_bo_map(dec->cmd_bo, NOUVEAU_BO_RDWR, dec->client);
  41.    if (ret) {
  42.       debug_printf("Mapping cmd bo: %s\n", strerror(-ret));
  43.       return ret;
  44.    }
  45.    ret = nouveau_bo_map(dec->data_bo, NOUVEAU_BO_RDWR, dec->client);
  46.    if (ret) {
  47.       debug_printf("Mapping data bo: %s\n", strerror(-ret));
  48.       return ret;
  49.    }
  50.    dec->cmds = dec->cmd_bo->map;
  51.    dec->data = dec->data_bo->map;
  52.    return ret;
  53. }
  54.  
  55. static void
  56. nouveau_vpe_synch(struct nouveau_decoder *dec) {
  57.    struct nouveau_pushbuf *push = dec->push;
  58. #if 0
  59.    if (dec->fence_map) {
  60.       BEGIN_NV04(push, NV84_MPEG(QUERY_COUNTER), 1);
  61.       PUSH_DATA (push, ++dec->fence_seq);
  62.       PUSH_KICK (push);
  63.       while (dec->fence_map[0] != dec->fence_seq)
  64.          usleep(1000);
  65.    } else
  66. #endif
  67.       PUSH_KICK(push);
  68. }
  69.  
  70. static void
  71. nouveau_vpe_fini(struct nouveau_decoder *dec) {
  72.    struct nouveau_pushbuf *push = dec->push;
  73.    if (!dec->cmds)
  74.       return;
  75.  
  76.    nouveau_pushbuf_space(push, 8, 2, 0);
  77.    nouveau_bufctx_reset(dec->bufctx, NV31_VIDEO_BIND_CMD);
  78.  
  79. #define BCTX_ARGS dec->bufctx, NV31_VIDEO_BIND_CMD, NOUVEAU_BO_RD
  80.  
  81.    BEGIN_NV04(push, NV31_MPEG(CMD_OFFSET), 2);
  82.    PUSH_MTHDl(push, NV31_MPEG(CMD_OFFSET), dec->cmd_bo, 0, BCTX_ARGS);
  83.    PUSH_DATA (push, dec->ofs * 4);
  84.  
  85.    BEGIN_NV04(push, NV31_MPEG(DATA_OFFSET), 2);
  86.    PUSH_MTHDl(push, NV31_MPEG(DATA_OFFSET), dec->data_bo, 0, BCTX_ARGS);
  87.    PUSH_DATA (push, dec->data_pos * 4);
  88.  
  89. #undef BCTX_ARGS
  90.  
  91.    if (unlikely(nouveau_pushbuf_validate(dec->push)))
  92.       return;
  93.  
  94.    BEGIN_NV04(push, NV31_MPEG(EXEC), 1);
  95.    PUSH_DATA (push, 1);
  96.  
  97.    nouveau_vpe_synch(dec);
  98.    dec->ofs = dec->data_pos = dec->num_surfaces = 0;
  99.    dec->cmds = dec->data = NULL;
  100.    dec->current = dec->future = dec->past = 8;
  101. }
  102.  
  103. static INLINE void
  104. nouveau_vpe_mb_dct_blocks(struct nouveau_decoder *dec, const struct pipe_mpeg12_macroblock *mb)
  105. {
  106.    int cbb;
  107.    unsigned cbp = mb->coded_block_pattern;
  108.    short *db = mb->blocks;
  109.    for (cbb = 0x20; cbb > 0; cbb >>= 1) {
  110.       if (cbb & cbp) {
  111.          int i, found = 0;
  112.          for (i = 0; i < 64; ++i) {
  113.             if (!db[i]) continue;
  114.             dec->data[dec->data_pos++] = (db[i] << 16) | (i * 2);
  115.             found = 1;
  116.          }
  117.          if (found)
  118.             dec->data[dec->data_pos - 1] |= 1;
  119.          else
  120.             dec->data[dec->data_pos++] = 1;
  121.          db += 64;
  122.       } else if (mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) {
  123.          dec->data[dec->data_pos++] = 1;
  124.       }
  125.    }
  126. }
  127.  
  128. static INLINE void
  129. nouveau_vpe_mb_data_blocks(struct nouveau_decoder *dec, const struct pipe_mpeg12_macroblock *mb)
  130. {
  131.    int cbb;
  132.    unsigned cbp = mb->coded_block_pattern;
  133.    short *db = mb->blocks;
  134.    for (cbb = 0x20; cbb > 0; cbb >>= 1) {
  135.       if (cbb & cbp) {
  136.          memcpy(&dec->data[dec->data_pos], db, 128);
  137.          dec->data_pos += 32;
  138.          db += 64;
  139.       } else if (mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) {
  140.          memset(&dec->data[dec->data_pos], 0, 128);
  141.          dec->data_pos += 32;
  142.       }
  143.    }
  144. }
  145.  
  146. static INLINE void
  147. nouveau_vpe_mb_dct_header(struct nouveau_decoder *dec,
  148.                           const struct pipe_mpeg12_macroblock *mb,
  149.                           bool luma)
  150. {
  151.    unsigned base_dct, cbp;
  152.    bool intra = mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA;
  153.    unsigned x = mb->x * 16;
  154.    unsigned y = luma ? mb->y * 16 : mb->y * 8;
  155.  
  156.    /* Setup the base dct header */
  157.    base_dct = dec->current << NV17_MPEG_CMD_CHROMA_MB_HEADER_SURFACE__SHIFT;
  158.    base_dct |= NV17_MPEG_CMD_CHROMA_MB_HEADER_RUN_SINGLE;
  159.  
  160.    if (!(mb->x & 1))
  161.       base_dct |= NV17_MPEG_CMD_CHROMA_MB_HEADER_X_COORD_EVEN;
  162.    if (intra)
  163.       cbp = 0x3f;
  164.    else
  165.       cbp = mb->coded_block_pattern;
  166.  
  167.    if (dec->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME) {
  168.       base_dct |= NV17_MPEG_CMD_CHROMA_MB_HEADER_TYPE_FRAME;
  169.       if (luma && mb->macroblock_modes.bits.dct_type == PIPE_MPEG12_DCT_TYPE_FIELD)
  170.          base_dct |= NV17_MPEG_CMD_CHROMA_MB_HEADER_FRAME_DCT_TYPE_FIELD;
  171.    } else {
  172.       if (dec->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FIELD_BOTTOM)
  173.          base_dct |= NV17_MPEG_CMD_CHROMA_MB_HEADER_FIELD_BOTTOM;
  174.       if (!intra)
  175.          y *= 2;
  176.    }
  177.  
  178.    if (luma) {
  179.       base_dct |= NV17_MPEG_CMD_LUMA_MB_HEADER_OP_LUMA_MB_HEADER;
  180.       base_dct |= (cbp >> 2) << NV17_MPEG_CMD_LUMA_MB_HEADER_CBP__SHIFT;
  181.    } else {
  182.       base_dct |= NV17_MPEG_CMD_CHROMA_MB_HEADER_OP_CHROMA_MB_HEADER;
  183.       base_dct |= (cbp & 3) << NV17_MPEG_CMD_CHROMA_MB_HEADER_CBP__SHIFT;
  184.    }
  185.    nouveau_vpe_write(dec, base_dct);
  186.    nouveau_vpe_write(dec, NV17_MPEG_CMD_MB_COORDS_OP_MB_COORDS |
  187.                      x | (y << NV17_MPEG_CMD_MB_COORDS_Y__SHIFT));
  188. }
  189.  
  190. static INLINE unsigned int
  191. nouveau_vpe_mb_mv_flags(bool luma, int mv_h, int mv_v, bool forward, bool first, bool vert)
  192. {
  193.    unsigned mc_header = 0;
  194.    if (luma)
  195.       mc_header |= NV17_MPEG_CMD_LUMA_MV_HEADER_OP_LUMA_MV_HEADER;
  196.    else
  197.       mc_header |= NV17_MPEG_CMD_CHROMA_MV_HEADER_OP_CHROMA_MV_HEADER;
  198.    if (mv_h & 1)
  199.       mc_header |= NV17_MPEG_CMD_CHROMA_MV_HEADER_X_HALF;
  200.    if (mv_v & 1)
  201.       mc_header |= NV17_MPEG_CMD_CHROMA_MV_HEADER_Y_HALF;
  202.    if (!forward)
  203.       mc_header |= NV17_MPEG_CMD_CHROMA_MV_HEADER_DIRECTION_BACKWARD;
  204.    if (!first)
  205.       mc_header |= NV17_MPEG_CMD_CHROMA_MV_HEADER_IDX;
  206.    if (vert)
  207.       mc_header |= NV17_MPEG_CMD_LUMA_MV_HEADER_FIELD_BOTTOM;
  208.    return mc_header;
  209. }
  210.  
  211. static unsigned pos(int pos, int mov, int max) {
  212.    int ret = pos + mov;
  213.    if (pos < 0)
  214.       return 0;
  215.    if (pos >= max)
  216.       return max-1;
  217.    return ret;
  218. }
  219.  
  220. /* because we want -1 / 2 = -1 */
  221. static int div_down(int val, int mult) {
  222.    val &= ~(mult - 1);
  223.    return val / mult;
  224. }
  225.  
  226. static int div_up(int val, int mult) {
  227.    val += mult - 1;
  228.    return val / mult;
  229. }
  230.  
  231. static INLINE void
  232. nouveau_vpe_mb_mv(struct nouveau_decoder *dec, unsigned mc_header,
  233.                    bool luma, bool frame, bool forward, bool vert,
  234.                    int x, int y, const short motions[2],
  235.                    unsigned surface, bool first)
  236. {
  237.    unsigned mc_vector;
  238.    int mv_horizontal = motions[0];
  239.    int mv_vertical = motions[1];
  240.    int mv2 = mc_header & NV17_MPEG_CMD_CHROMA_MV_HEADER_COUNT_2;
  241.    unsigned width = dec->base.width;
  242.    unsigned height = dec->base.height;
  243.    if (mv2)
  244.       mv_vertical = div_down(mv_vertical, 2);
  245.    assert(frame); // Untested for non-frames
  246.    if (!frame)
  247.       height *= 2;
  248.  
  249.    mc_header |= surface << NV17_MPEG_CMD_CHROMA_MV_HEADER_SURFACE__SHIFT;
  250.    if (!luma) {
  251.       mv_vertical = div_up(mv_vertical, 2);
  252.       mv_horizontal = div_up(mv_horizontal, 2);
  253.       height /= 2;
  254.    }
  255.    mc_header |= nouveau_vpe_mb_mv_flags(luma, mv_horizontal, mv_vertical, forward, first, vert);
  256.    nouveau_vpe_write(dec, mc_header);
  257.  
  258.    mc_vector = NV17_MPEG_CMD_MV_COORDS_OP_MV_COORDS;
  259.    if (luma)
  260.       mc_vector |= pos(x, div_down(mv_horizontal, 2), width);
  261.    else
  262.       mc_vector |= pos(x, mv_horizontal & ~1, width);
  263.    if (!mv2)
  264.       mc_vector |= pos(y, div_down(mv_vertical, 2), height) << NV17_MPEG_CMD_MV_COORDS_Y__SHIFT;
  265.    else
  266.       mc_vector |= pos(y, mv_vertical & ~1, height) << NV17_MPEG_CMD_MV_COORDS_Y__SHIFT;
  267.    nouveau_vpe_write(dec, mc_vector);
  268. }
  269.  
  270. static void
  271. nouveau_vpe_mb_mv_header(struct nouveau_decoder *dec,
  272.                          const struct pipe_mpeg12_macroblock *mb,
  273.                          bool luma)
  274. {
  275.    bool frame = dec->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FRAME;
  276.    unsigned base;
  277.    bool forward, backward;
  278.    int y, y2, x = mb->x * 16;
  279.    if (luma)
  280.       y = mb->y * (frame ? 16 : 32);
  281.    else
  282.       y = mb->y * (frame ? 8 : 16);
  283.    if (frame)
  284.       y2 = y;
  285.    else
  286.       y2 = y + (luma ? 16 : 8);
  287.  
  288.    forward = mb->macroblock_type & PIPE_MPEG12_MB_TYPE_MOTION_FORWARD;
  289.    backward = mb->macroblock_type & PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD;
  290.    assert(!forward || dec->past < 8);
  291.    assert(!backward || dec->future < 8);
  292.    if (frame) {
  293.       switch (mb->macroblock_modes.bits.frame_motion_type) {
  294.       case PIPE_MPEG12_MO_TYPE_FRAME: goto mv1;
  295.       case PIPE_MPEG12_MO_TYPE_FIELD: goto mv2;
  296.       case PIPE_MPEG12_MO_TYPE_DUAL_PRIME: {
  297.          base = NV17_MPEG_CMD_CHROMA_MV_HEADER_COUNT_2;
  298.          if (forward) {
  299.             nouveau_vpe_mb_mv(dec, base, luma, frame, TRUE, FALSE,
  300.                               x, y, mb->PMV[0][0], dec->past, TRUE);
  301.             nouveau_vpe_mb_mv(dec, base, luma, frame, TRUE, TRUE,
  302.                               x, y2, mb->PMV[0][0], dec->past, FALSE);
  303.          }
  304.          if (backward && forward) {
  305.             nouveau_vpe_mb_mv(dec, base, luma, frame, !forward, TRUE,
  306.                               x, y, mb->PMV[1][0], dec->future, TRUE);
  307.             nouveau_vpe_mb_mv(dec, base, luma, frame, !forward, FALSE,
  308.                               x, y2, mb->PMV[1][1], dec->future, FALSE);
  309.          } else assert(!backward);
  310.          break;
  311.       }
  312.       default: assert(0);
  313.       }
  314.    } else {
  315.       switch (mb->macroblock_modes.bits.field_motion_type) {
  316.       case PIPE_MPEG12_MO_TYPE_FIELD: goto mv1;
  317.       case PIPE_MPEG12_MO_TYPE_16x8: goto mv2;
  318.       case PIPE_MPEG12_MO_TYPE_DUAL_PRIME: {
  319.       base = NV17_MPEG_CMD_CHROMA_MV_HEADER_MV_SPLIT_HALF_MB;
  320.          if (frame)
  321.             base |= NV17_MPEG_CMD_CHROMA_MV_HEADER_TYPE_FRAME;
  322.          if (forward)
  323.             nouveau_vpe_mb_mv(dec, base, luma, frame, TRUE,
  324.                               dec->picture_structure != PIPE_MPEG12_PICTURE_STRUCTURE_FIELD_TOP,
  325.                               x, y, mb->PMV[0][0], dec->past, TRUE);
  326.          if (backward && forward)
  327.             nouveau_vpe_mb_mv(dec, base, luma, frame, FALSE,
  328.                               dec->picture_structure == PIPE_MPEG12_PICTURE_STRUCTURE_FIELD_TOP,
  329.                               x, y, mb->PMV[0][1], dec->future, TRUE);
  330.          else assert(!backward);
  331.          break;
  332.       }
  333.       default: assert(0);
  334.       }
  335.    }
  336.    return;
  337.  
  338. mv1:
  339.    base = NV17_MPEG_CMD_CHROMA_MV_HEADER_MV_SPLIT_HALF_MB;
  340.    if (frame)
  341.        base |= NV17_MPEG_CMD_CHROMA_MV_HEADER_TYPE_FRAME;
  342.     /* frame 16x16 */
  343.    if (forward)
  344.        nouveau_vpe_mb_mv(dec, base, luma, frame, TRUE, FALSE,
  345.                          x, y, mb->PMV[0][0], dec->past, TRUE);
  346.    if (backward)
  347.        nouveau_vpe_mb_mv(dec, base, luma, frame, !forward, FALSE,
  348.                          x, y, mb->PMV[0][1], dec->future, TRUE);
  349.     return;
  350.  
  351. mv2:
  352.    base = NV17_MPEG_CMD_CHROMA_MV_HEADER_COUNT_2;
  353.    if (!frame)
  354.       base |= NV17_MPEG_CMD_CHROMA_MV_HEADER_MV_SPLIT_HALF_MB;
  355.    if (forward) {
  356.       nouveau_vpe_mb_mv(dec, base, luma, frame, TRUE,
  357.                         mb->motion_vertical_field_select & PIPE_MPEG12_FS_FIRST_FORWARD,
  358.                         x, y, mb->PMV[0][0], dec->past, TRUE);
  359.       nouveau_vpe_mb_mv(dec, base, luma, frame, TRUE,
  360.                         mb->motion_vertical_field_select & PIPE_MPEG12_FS_SECOND_FORWARD,
  361.                         x, y2, mb->PMV[1][0], dec->past, FALSE);
  362.    }
  363.    if (backward) {
  364.       nouveau_vpe_mb_mv(dec, base, luma, frame, !forward,
  365.                         mb->motion_vertical_field_select & PIPE_MPEG12_FS_FIRST_BACKWARD,
  366.                         x, y, mb->PMV[0][1], dec->future, TRUE);
  367.       nouveau_vpe_mb_mv(dec, base, luma, frame, !forward,
  368.                         mb->motion_vertical_field_select & PIPE_MPEG12_FS_SECOND_BACKWARD,
  369.                         x, y2, mb->PMV[1][1], dec->future, FALSE);
  370.    }
  371. }
  372.  
  373. static unsigned
  374. nouveau_decoder_surface_index(struct nouveau_decoder *dec,
  375.                               struct pipe_video_buffer *buffer)
  376. {
  377.    struct nouveau_video_buffer *buf = (struct nouveau_video_buffer *)buffer;
  378.    struct nouveau_pushbuf *push = dec->push;
  379.    struct nouveau_bo *bo_y = nv04_resource(buf->resources[0])->bo;
  380.    struct nouveau_bo *bo_c = nv04_resource(buf->resources[1])->bo;
  381.  
  382.    unsigned i;
  383.  
  384.    for (i = 0; i < dec->num_surfaces; ++i) {
  385.       if (dec->surfaces[i] == buf)
  386.          return i;
  387.    }
  388.    assert(i < 8);
  389.    dec->surfaces[i] = buf;
  390.    dec->num_surfaces++;
  391.  
  392.    nouveau_bufctx_reset(dec->bufctx, NV31_VIDEO_BIND_IMG(i));
  393.  
  394. #define BCTX_ARGS dec->bufctx, NV31_VIDEO_BIND_IMG(i), NOUVEAU_BO_RDWR
  395.    BEGIN_NV04(push, NV31_MPEG(IMAGE_Y_OFFSET(i)), 2);
  396.    PUSH_MTHDl(push, NV31_MPEG(IMAGE_Y_OFFSET(i)), bo_y, 0, BCTX_ARGS);
  397.    PUSH_MTHDl(push, NV31_MPEG(IMAGE_C_OFFSET(i)), bo_c, 0, BCTX_ARGS);
  398. #undef BCTX_ARGS
  399.  
  400.    return i;
  401. }
  402.  
  403. static void
  404. nouveau_decoder_begin_frame(struct pipe_video_codec *decoder,
  405.                             struct pipe_video_buffer *target,
  406.                             struct pipe_picture_desc *picture)
  407. {
  408. }
  409.  
  410. static void
  411. nouveau_decoder_decode_macroblock(struct pipe_video_codec *decoder,
  412.                                   struct pipe_video_buffer *target,
  413.                                   struct pipe_picture_desc *picture,
  414.                                   const struct pipe_macroblock *pipe_mb,
  415.                                   unsigned num_macroblocks)
  416. {
  417.    struct nouveau_decoder *dec = (struct nouveau_decoder *)decoder;
  418.    struct pipe_mpeg12_picture_desc *desc = (struct pipe_mpeg12_picture_desc*)picture;
  419.    const struct pipe_mpeg12_macroblock *mb;
  420.    unsigned i;
  421.    assert(target->width == decoder->width);
  422.    assert(target->height == decoder->height);
  423.  
  424.    dec->current = nouveau_decoder_surface_index(dec, target);
  425.    assert(dec->current < 8);
  426.    dec->picture_structure = desc->picture_structure;
  427.    if (desc->ref[1])
  428.       dec->future = nouveau_decoder_surface_index(dec, desc->ref[1]);
  429.    if (desc->ref[0])
  430.       dec->past = nouveau_decoder_surface_index(dec, desc->ref[0]);
  431.  
  432.    if (nouveau_vpe_init(dec)) return;
  433.  
  434.    /* initialize scan order */
  435.    nouveau_vpe_write(dec, 0x720000c0);
  436.    nouveau_vpe_write(dec, dec->data_pos);
  437.  
  438.    mb = (const struct pipe_mpeg12_macroblock *)pipe_mb;
  439.    for (i = 0; i < num_macroblocks; ++i, mb++) {
  440.       if (mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) {
  441.          nouveau_vpe_mb_dct_header(dec, mb, TRUE);
  442.          nouveau_vpe_mb_dct_header(dec, mb, FALSE);
  443.       } else {
  444.          nouveau_vpe_mb_mv_header(dec, mb, TRUE);
  445.          nouveau_vpe_mb_dct_header(dec, mb, TRUE);
  446.  
  447.          nouveau_vpe_mb_mv_header(dec, mb, FALSE);
  448.          nouveau_vpe_mb_dct_header(dec, mb, FALSE);
  449.       }
  450.       if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT)
  451.          nouveau_vpe_mb_dct_blocks(dec, mb);
  452.       else
  453.          nouveau_vpe_mb_data_blocks(dec, mb);
  454.    }
  455. }
  456.  
  457. static void
  458. nouveau_decoder_end_frame(struct pipe_video_codec *decoder,
  459.                           struct pipe_video_buffer *target,
  460.                           struct pipe_picture_desc *picture)
  461. {
  462. }
  463.  
  464. static void
  465. nouveau_decoder_flush(struct pipe_video_codec *decoder)
  466. {
  467.    struct nouveau_decoder *dec = (struct nouveau_decoder *)decoder;
  468.    if (dec->ofs)
  469.       nouveau_vpe_fini(dec);
  470. }
  471.  
  472. static void
  473. nouveau_decoder_destroy(struct pipe_video_codec *decoder)
  474. {
  475.    struct nouveau_decoder *dec = (struct nouveau_decoder*)decoder;
  476.  
  477.    if (dec->data_bo)
  478.       nouveau_bo_ref(NULL, &dec->data_bo);
  479.    if (dec->cmd_bo)
  480.       nouveau_bo_ref(NULL, &dec->cmd_bo);
  481.    if (dec->fence_bo)
  482.       nouveau_bo_ref(NULL, &dec->fence_bo);
  483.  
  484.    nouveau_object_del(&dec->mpeg);
  485.  
  486.    if (dec->bufctx)
  487.       nouveau_bufctx_del(&dec->bufctx);
  488.    if (dec->push)
  489.       nouveau_pushbuf_del(&dec->push);
  490.    if (dec->client)
  491.       nouveau_client_del(&dec->client);
  492.    if (dec->chan)
  493.       nouveau_object_del(&dec->chan);
  494.  
  495.    FREE(dec);
  496. }
  497.  
  498. static struct pipe_video_codec *
  499. nouveau_create_decoder(struct pipe_context *context,
  500.                        const struct pipe_video_codec *templ,
  501.                        struct nouveau_screen *screen)
  502. {
  503.    struct nv04_fifo nv04_data = { .vram = 0xbeef0201, .gart = 0xbeef0202 };
  504.    unsigned width = templ->width, height = templ->height;
  505.    struct nouveau_object *mpeg = NULL;
  506.    struct nouveau_decoder *dec;
  507.    struct nouveau_pushbuf *push;
  508.    int ret;
  509.    bool is8274 = screen->device->chipset > 0x80;
  510.  
  511.    debug_printf("Acceleration level: %s\n", templ->entrypoint <= PIPE_VIDEO_ENTRYPOINT_BITSTREAM ? "bit":
  512.                                             templ->entrypoint == PIPE_VIDEO_ENTRYPOINT_IDCT ? "IDCT" : "MC");
  513.  
  514.    if (getenv("XVMC_VL"))
  515.       goto vl;
  516.    if (u_reduce_video_profile(templ->profile) != PIPE_VIDEO_FORMAT_MPEG12)
  517.       goto vl;
  518.    if (screen->device->chipset >= 0x98 && screen->device->chipset != 0xa0)
  519.       goto vl;
  520.    if (screen->device->chipset < 0x40)
  521.       goto vl;
  522.  
  523.    dec = CALLOC_STRUCT(nouveau_decoder);
  524.    if (!dec)
  525.       return NULL;
  526.  
  527.    ret = nouveau_object_new(&screen->device->object, 0,
  528.                             NOUVEAU_FIFO_CHANNEL_CLASS,
  529.                             &nv04_data, sizeof(nv04_data), &dec->chan);
  530.    if (ret)
  531.       goto fail;
  532.    ret = nouveau_client_new(screen->device, &dec->client);
  533.    if (ret)
  534.       goto fail;
  535.    ret = nouveau_pushbuf_new(dec->client, dec->chan, 2, 4096, 1, &dec->push);
  536.    if (ret)
  537.       goto fail;
  538.    ret = nouveau_bufctx_new(dec->client, NV31_VIDEO_BIND_COUNT, &dec->bufctx);
  539.    if (ret)
  540.       goto fail;
  541.    push = dec->push;
  542.  
  543.    width = align(width, 64);
  544.    height = align(height, 64);
  545.  
  546.    if (is8274)
  547.       ret = nouveau_object_new(dec->chan, 0xbeef8274, NV84_MPEG_CLASS, NULL, 0,
  548.                                &mpeg);
  549.    else
  550.       ret = nouveau_object_new(dec->chan, 0xbeef3174, NV31_MPEG_CLASS, NULL, 0,
  551.                                &mpeg);
  552.    if (ret < 0) {
  553.       debug_printf("Creation failed: %s (%i)\n", strerror(-ret), ret);
  554.       goto fail;
  555.    }
  556.  
  557.    dec->mpeg = mpeg;
  558.    dec->base = *templ;
  559.    dec->base.context = context;
  560.    dec->base.width = width;
  561.    dec->base.height = height;
  562.    dec->base.destroy = nouveau_decoder_destroy;
  563.    dec->base.begin_frame = nouveau_decoder_begin_frame;
  564.    dec->base.decode_macroblock = nouveau_decoder_decode_macroblock;
  565.    dec->base.end_frame = nouveau_decoder_end_frame;
  566.    dec->base.flush = nouveau_decoder_flush;
  567.    dec->screen = screen;
  568.  
  569.    ret = nouveau_bo_new(dec->screen->device, NOUVEAU_BO_GART | NOUVEAU_BO_MAP,
  570.                         0, 1024 * 1024, NULL, &dec->cmd_bo);
  571.    if (ret)
  572.       goto fail;
  573.  
  574.    ret = nouveau_bo_new(dec->screen->device, NOUVEAU_BO_GART | NOUVEAU_BO_MAP,
  575.                         0, width * height * 6, NULL, &dec->data_bo);
  576.    if (ret)
  577.       goto fail;
  578.  
  579.    /* we don't need the fence, the kernel sync's for us */
  580. #if 0
  581.    ret = nouveau_bo_new(dec->screen->device, NOUVEAU_BO_GART | NOUVEAU_BO_MAP,
  582.                         0, 4096, NULL, &dec->fence_bo);
  583.    if (ret)
  584.       goto fail;
  585.    nouveau_bo_map(dec->fence_bo, NOUVEAU_BO_RDWR, NULL);
  586.    dec->fence_map = dec->fence_bo->map;
  587.    dec->fence_map[0] = 0;
  588. #endif
  589.  
  590.    nouveau_pushbuf_bufctx(dec->push, dec->bufctx);
  591.    nouveau_pushbuf_space(push, 32, 4, 0);
  592.  
  593.    BEGIN_NV04(push, SUBC_MPEG(NV01_SUBCHAN_OBJECT), 1);
  594.    PUSH_DATA (push, dec->mpeg->handle);
  595.  
  596.    BEGIN_NV04(push, NV31_MPEG(DMA_CMD), 1);
  597.    PUSH_DATA (push, nv04_data.gart);
  598.  
  599.    BEGIN_NV04(push, NV31_MPEG(DMA_DATA), 1);
  600.    PUSH_DATA (push, nv04_data.gart);
  601.  
  602.    BEGIN_NV04(push, NV31_MPEG(DMA_IMAGE), 1);
  603.    PUSH_DATA (push, nv04_data.vram);
  604.  
  605.    BEGIN_NV04(push, NV31_MPEG(PITCH), 2);
  606.    PUSH_DATA (push, width | NV31_MPEG_PITCH_UNK);
  607.    PUSH_DATA (push, (height << NV31_MPEG_SIZE_H__SHIFT) | width);
  608.  
  609.    BEGIN_NV04(push, NV31_MPEG(FORMAT), 2);
  610.    PUSH_DATA (push, 0);
  611.    switch (templ->entrypoint) {
  612.       case PIPE_VIDEO_ENTRYPOINT_IDCT: PUSH_DATA (push, 1); break;
  613.       case PIPE_VIDEO_ENTRYPOINT_MC: PUSH_DATA (push, 0); break;
  614.       default: assert(0);
  615.    }
  616.  
  617.    if (is8274) {
  618.       BEGIN_NV04(push, NV84_MPEG(DMA_QUERY), 1);
  619.       PUSH_DATA (push, nv04_data.vram);
  620. #if 0
  621.       BEGIN_NV04(push, NV84_MPEG(QUERY_OFFSET), 2);
  622.       PUSH_DATA (push, dec->fence_bo->offset);
  623.       PUSH_DATA (push, dec->fence_seq);
  624. #endif
  625.    }
  626.  
  627.    ret = nouveau_vpe_init(dec);
  628.    if (ret)
  629.       goto fail;
  630.    nouveau_vpe_fini(dec);
  631.    return &dec->base;
  632.  
  633. fail:
  634.    nouveau_decoder_destroy(&dec->base);
  635.    return NULL;
  636.  
  637. vl:
  638.    debug_printf("Using g3dvl renderer\n");
  639.    return vl_create_decoder(context, templ);
  640. }
  641.  
  642. static struct pipe_sampler_view **
  643. nouveau_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
  644. {
  645.    struct nouveau_video_buffer *buf = (struct nouveau_video_buffer *)buffer;
  646.    struct pipe_sampler_view sv_templ;
  647.    struct pipe_context *pipe;
  648.    unsigned i;
  649.  
  650.    assert(buf);
  651.  
  652.    pipe = buf->base.context;
  653.  
  654.    for (i = 0; i < buf->num_planes; ++i ) {
  655.       if (!buf->sampler_view_planes[i]) {
  656.          memset(&sv_templ, 0, sizeof(sv_templ));
  657.          u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
  658.  
  659.          if (util_format_get_nr_components(buf->resources[i]->format) == 1)
  660.             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
  661.  
  662.          buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
  663.          if (!buf->sampler_view_planes[i])
  664.             goto error;
  665.       }
  666.    }
  667.  
  668.    return buf->sampler_view_planes;
  669.  
  670. error:
  671.    for (i = 0; i < buf->num_planes; ++i )
  672.       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
  673.  
  674.    return NULL;
  675. }
  676.  
  677. static struct pipe_sampler_view **
  678. nouveau_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
  679. {
  680.    struct nouveau_video_buffer *buf = (struct nouveau_video_buffer *)buffer;
  681.    struct pipe_sampler_view sv_templ;
  682.    struct pipe_context *pipe;
  683.    unsigned i, j, component;
  684.  
  685.    assert(buf);
  686.  
  687.    pipe = buf->base.context;
  688.  
  689.    for (component = 0, i = 0; i < buf->num_planes; ++i ) {
  690.       unsigned nr_components = util_format_get_nr_components(buf->resources[i]->format);
  691.  
  692.       for (j = 0; j < nr_components; ++j, ++component) {
  693.          assert(component < VL_NUM_COMPONENTS);
  694.  
  695.          if (!buf->sampler_view_components[component]) {
  696.             memset(&sv_templ, 0, sizeof(sv_templ));
  697.             u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
  698.             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
  699.             sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
  700.             buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
  701.             if (!buf->sampler_view_components[component])
  702.                goto error;
  703.          }
  704.       }
  705.    }
  706.  
  707.    return buf->sampler_view_components;
  708.  
  709. error:
  710.    for (i = 0; i < 3; ++i )
  711.       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
  712.  
  713.    return NULL;
  714. }
  715.  
  716. static struct pipe_surface **
  717. nouveau_video_buffer_surfaces(struct pipe_video_buffer *buffer)
  718. {
  719.    struct nouveau_video_buffer *buf = (struct nouveau_video_buffer *)buffer;
  720.    struct pipe_surface surf_templ;
  721.    struct pipe_context *pipe;
  722.    unsigned i;
  723.  
  724.    assert(buf);
  725.  
  726.    pipe = buf->base.context;
  727.  
  728.    for (i = 0; i < buf->num_planes; ++i ) {
  729.       if (!buf->surfaces[i]) {
  730.          memset(&surf_templ, 0, sizeof(surf_templ));
  731.          surf_templ.format = buf->resources[i]->format;
  732.          buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
  733.          if (!buf->surfaces[i])
  734.             goto error;
  735.       }
  736.    }
  737.  
  738.    return buf->surfaces;
  739.  
  740. error:
  741.    for (i = 0; i < buf->num_planes; ++i )
  742.       pipe_surface_reference(&buf->surfaces[i], NULL);
  743.  
  744.    return NULL;
  745. }
  746.  
  747. static void
  748. nouveau_video_buffer_destroy(struct pipe_video_buffer *buffer)
  749. {
  750.    struct nouveau_video_buffer *buf = (struct nouveau_video_buffer *)buffer;
  751.    unsigned i;
  752.  
  753.    assert(buf);
  754.  
  755.    for (i = 0; i < buf->num_planes; ++i) {
  756.       pipe_surface_reference(&buf->surfaces[i], NULL);
  757.       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
  758.       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
  759.       pipe_resource_reference(&buf->resources[i], NULL);
  760.    }
  761.    for (;i < 3;++i)
  762.       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
  763.  
  764.    FREE(buffer);
  765. }
  766.  
  767. static struct pipe_video_buffer *
  768. nouveau_video_buffer_create(struct pipe_context *pipe,
  769.                             struct nouveau_screen *screen,
  770.                             const struct pipe_video_buffer *templat)
  771. {
  772.    struct nouveau_video_buffer *buffer;
  773.    struct pipe_resource templ;
  774.    unsigned width, height;
  775.  
  776.    /* Only do a linear surface when a hardware decoder is used
  777.     * hardware decoder is only supported on some chipsets
  778.     * and it only supports the NV12 format
  779.     */
  780.    if (templat->buffer_format != PIPE_FORMAT_NV12 || getenv("XVMC_VL") ||
  781.        (screen->device->chipset >= 0x98 && screen->device->chipset != 0xa0) ||
  782.        screen->device->chipset < 0x40)
  783.       return vl_video_buffer_create(pipe, templat);
  784.  
  785.    assert(templat->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420);
  786.    width = align(templat->width, 64);
  787.    height = align(templat->height, 64);
  788.  
  789.    buffer = CALLOC_STRUCT(nouveau_video_buffer);
  790.    if (!buffer)
  791.       return NULL;
  792.  
  793.    buffer->base.context = pipe;
  794.    buffer->base.destroy = nouveau_video_buffer_destroy;
  795.    buffer->base.get_sampler_view_planes = nouveau_video_buffer_sampler_view_planes;
  796.    buffer->base.get_sampler_view_components = nouveau_video_buffer_sampler_view_components;
  797.    buffer->base.get_surfaces = nouveau_video_buffer_surfaces;
  798.    buffer->base.chroma_format = templat->chroma_format;
  799.    buffer->base.buffer_format = templat->buffer_format;
  800.    buffer->base.width = width;
  801.    buffer->base.height = height;
  802.    buffer->num_planes = 2;
  803.  
  804.    memset(&templ, 0, sizeof(templ));
  805.    templ.target = PIPE_TEXTURE_2D;
  806.    templ.format = PIPE_FORMAT_R8_UNORM;
  807.    templ.width0 = width;
  808.    templ.height0 = height;
  809.    templ.depth0 = 1;
  810.    templ.array_size = 1;
  811.    templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
  812.    templ.usage = PIPE_USAGE_DEFAULT;
  813.    templ.flags = NOUVEAU_RESOURCE_FLAG_LINEAR;
  814.  
  815.    buffer->resources[0] = pipe->screen->resource_create(pipe->screen, &templ);
  816.    if (!buffer->resources[0])
  817.       goto error;
  818.    templ.width0 /= 2;
  819.    templ.height0 /= 2;
  820.    templ.format = PIPE_FORMAT_R8G8_UNORM;
  821.    buffer->resources[1] = pipe->screen->resource_create(pipe->screen, &templ);
  822.    if (!buffer->resources[1])
  823.       goto error;
  824.    return &buffer->base;
  825.  
  826. error:
  827.    nouveau_video_buffer_destroy(&buffer->base);
  828.    return NULL;
  829. }
  830.  
  831. static int
  832. nouveau_screen_get_video_param(struct pipe_screen *pscreen,
  833.                                enum pipe_video_profile profile,
  834.                                enum pipe_video_entrypoint entrypoint,
  835.                                enum pipe_video_cap param)
  836. {
  837.    switch (param) {
  838.    case PIPE_VIDEO_CAP_SUPPORTED:
  839.       return entrypoint >= PIPE_VIDEO_ENTRYPOINT_IDCT &&
  840.          u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG12;
  841.    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
  842.       return 1;
  843.    case PIPE_VIDEO_CAP_MAX_WIDTH:
  844.    case PIPE_VIDEO_CAP_MAX_HEIGHT:
  845.       return vl_video_buffer_max_size(pscreen);
  846.    case PIPE_VIDEO_CAP_PREFERED_FORMAT:
  847.       return PIPE_FORMAT_NV12;
  848.    case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
  849.       return false;
  850.    case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
  851.       return false;
  852.    case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
  853.       return true;
  854.    case PIPE_VIDEO_CAP_MAX_LEVEL:
  855.       return vl_level_supported(pscreen, profile);
  856.    default:
  857.       debug_printf("unknown video param: %d\n", param);
  858.       return 0;
  859.    }
  860. }
  861.  
  862. void
  863. nouveau_screen_init_vdec(struct nouveau_screen *screen)
  864. {
  865.    screen->base.get_video_param = nouveau_screen_get_video_param;
  866.    screen->base.is_video_format_supported = vl_video_buffer_is_format_supported;
  867. }
  868.  
  869. static struct pipe_video_codec *
  870. nouveau_context_create_decoder(struct pipe_context *context,
  871.                                const struct pipe_video_codec *templ)
  872. {
  873.    struct nouveau_screen *screen = nouveau_context(context)->screen;
  874.    return nouveau_create_decoder(context, templ, screen);
  875. }
  876.  
  877. static struct pipe_video_buffer *
  878. nouveau_context_video_buffer_create(struct pipe_context *pipe,
  879.                                     const struct pipe_video_buffer *templat)
  880. {
  881.    struct nouveau_screen *screen = nouveau_context(pipe)->screen;
  882.    return nouveau_video_buffer_create(pipe, screen, templat);
  883. }
  884.  
  885. void
  886. nouveau_context_init_vdec(struct nouveau_context *nv)
  887. {
  888.    nv->pipe.create_video_codec = nouveau_context_create_decoder;
  889.    nv->pipe.create_video_buffer = nouveau_context_video_buffer_create;
  890. }
  891.