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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_vp3_video.h"
24 
25 struct strparm_bsp {
26    uint32_t w0[4]; // bits 0-23 length, bits 24-31 addr_hi
27    uint32_t w1[4]; // bit 8-24 addr_lo
28    uint32_t unk20; // should be idx * 0x8000000, bitstream offset
29    uint32_t do_crypto_crap; // set to 0
30 };
31 
32 struct mpeg12_picparm_bsp {
33    uint16_t width;
34    uint16_t height;
35    uint8_t picture_structure;
36    uint8_t picture_coding_type;
37    uint8_t intra_dc_precision;
38    uint8_t frame_pred_frame_dct;
39    uint8_t concealment_motion_vectors;
40    uint8_t intra_vlc_format;
41    uint16_t pad;
42    uint8_t f_code[2][2];
43 };
44 
45 struct mpeg4_picparm_bsp {
46    uint16_t width;
47    uint16_t height;
48    uint8_t vop_time_increment_size;
49    uint8_t interlaced;
50    uint8_t resync_marker_disable;
51 };
52 
53 struct vc1_picparm_bsp {
54    uint16_t width;
55    uint16_t height;
56    uint8_t profile; // 04 0 simple, 1 main, 2 advanced
57    uint8_t postprocflag; // 05
58    uint8_t pulldown; // 06
59    uint8_t interlaced; // 07
60    uint8_t tfcntrflag; // 08
61    uint8_t finterpflag; // 09
62    uint8_t psf; // 0a
63    uint8_t pad; // 0b
64    uint8_t multires; // 0c
65    uint8_t syncmarker; // 0d
66    uint8_t rangered; // 0e
67    uint8_t maxbframes; // 0f
68    uint8_t dquant; // 10
69    uint8_t panscan_flag; // 11
70    uint8_t refdist_flag; // 12
71    uint8_t quantizer; // 13
72    uint8_t extended_mv; // 14
73    uint8_t extended_dmv; // 15
74    uint8_t overlap; // 16
75    uint8_t vstransform; // 17
76 };
77 
78 struct h264_picparm_bsp {
79    // 00
80    uint32_t unk00;
81    // 04
82    uint32_t log2_max_frame_num_minus4; // 04 checked
83    uint32_t pic_order_cnt_type; // 08 checked
84    uint32_t log2_max_pic_order_cnt_lsb_minus4; // 0c checked
85    uint32_t delta_pic_order_always_zero_flag; // 10, or unknown
86 
87    uint32_t frame_mbs_only_flag; // 14, always 1?
88    uint32_t direct_8x8_inference_flag; // 18, always 1?
89    uint32_t width_mb; // 1c checked
90    uint32_t height_mb; // 20 checked
91    // 24
92    //struct picparm2
93    uint32_t entropy_coding_mode_flag; // 00, checked
94    uint32_t pic_order_present_flag; // 04 checked
95    uint32_t unk; // 08 seems to be 0?
96    uint32_t pad1; // 0c seems to be 0?
97    uint32_t pad2; // 10 always 0 ?
98    uint32_t num_ref_idx_l0_active_minus1; // 14 always 0?
99    uint32_t num_ref_idx_l1_active_minus1; // 18 always 0?
100    uint32_t weighted_pred_flag; // 1c checked
101    uint32_t weighted_bipred_idc; // 20 checked
102    uint32_t pic_init_qp_minus26; // 24 checked
103    uint32_t deblocking_filter_control_present_flag; // 28 always 1?
104    uint32_t redundant_pic_cnt_present_flag; // 2c always 0?
105    uint32_t transform_8x8_mode_flag; // 30 checked
106    uint32_t mb_adaptive_frame_field_flag; // 34 checked-ish
107    uint8_t field_pic_flag; // 38 checked
108    uint8_t bottom_field_flag; // 39 checked
109    uint8_t real_pad[0x1b]; // XX why?
110 };
111 
112 static uint32_t
nouveau_vp3_fill_picparm_mpeg12_bsp(struct nouveau_vp3_decoder * dec,struct pipe_mpeg12_picture_desc * desc,char * map)113 nouveau_vp3_fill_picparm_mpeg12_bsp(struct nouveau_vp3_decoder *dec,
114                                     struct pipe_mpeg12_picture_desc *desc,
115                                     char *map)
116 {
117    struct mpeg12_picparm_bsp *pic_bsp = (struct mpeg12_picparm_bsp *)map;
118    int i;
119    pic_bsp->width = dec->base.width;
120    pic_bsp->height = dec->base.height;
121    pic_bsp->picture_structure = desc->picture_structure;
122    pic_bsp->picture_coding_type = desc->picture_coding_type;
123    pic_bsp->intra_dc_precision = desc->intra_dc_precision;
124    pic_bsp->frame_pred_frame_dct = desc->frame_pred_frame_dct;
125    pic_bsp->concealment_motion_vectors = desc->concealment_motion_vectors;
126    pic_bsp->intra_vlc_format = desc->intra_vlc_format;
127    pic_bsp->pad = 0;
128    for (i = 0; i < 4; ++i)
129       pic_bsp->f_code[i/2][i%2] = desc->f_code[i/2][i%2] + 1; // FU
130 
131    return (desc->num_slices << 4) | (dec->base.profile != PIPE_VIDEO_PROFILE_MPEG1);
132 }
133 
134 static uint32_t
nouveau_vp3_fill_picparm_mpeg4_bsp(struct nouveau_vp3_decoder * dec,struct pipe_mpeg4_picture_desc * desc,char * map)135 nouveau_vp3_fill_picparm_mpeg4_bsp(struct nouveau_vp3_decoder *dec,
136                                    struct pipe_mpeg4_picture_desc *desc,
137                                    char *map)
138 {
139    struct mpeg4_picparm_bsp *pic_bsp = (struct mpeg4_picparm_bsp *)map;
140    uint32_t t, bits = 0;
141    pic_bsp->width = dec->base.width;
142    pic_bsp->height = dec->base.height;
143    assert(desc->vop_time_increment_resolution > 0);
144 
145    t = desc->vop_time_increment_resolution - 1;
146    while (t) {
147       bits++;
148       t /= 2;
149    }
150    if (!bits)
151       bits = 1;
152    t = desc->vop_time_increment_resolution - 1;
153    pic_bsp->vop_time_increment_size = bits;
154    pic_bsp->interlaced = desc->interlaced;
155    pic_bsp->resync_marker_disable = desc->resync_marker_disable;
156    return 4;
157 }
158 
159 static uint32_t
nouveau_vp3_fill_picparm_vc1_bsp(struct nouveau_vp3_decoder * dec,struct pipe_vc1_picture_desc * d,char * map)160 nouveau_vp3_fill_picparm_vc1_bsp(struct nouveau_vp3_decoder *dec,
161                                  struct pipe_vc1_picture_desc *d,
162                                  char *map)
163 {
164    struct vc1_picparm_bsp *vc = (struct vc1_picparm_bsp *)map;
165    uint32_t caps = (d->slice_count << 4)&0xfff0;
166    vc->width = dec->base.width;
167    vc->height = dec->base.height;
168    vc->profile = dec->base.profile - PIPE_VIDEO_PROFILE_VC1_SIMPLE; // 04
169    vc->postprocflag = d->postprocflag;
170    vc->pulldown = d->pulldown;
171    vc->interlaced = d->interlace;
172    vc->tfcntrflag = d->tfcntrflag; // 08
173    vc->finterpflag = d->finterpflag;
174    vc->psf = d->psf;
175    vc->pad = 0;
176    vc->multires = d->multires; // 0c
177    vc->syncmarker = d->syncmarker;
178    vc->rangered = d->rangered;
179    vc->maxbframes = d->maxbframes;
180    vc->dquant = d->dquant; // 10
181    vc->panscan_flag = d->panscan_flag;
182    vc->refdist_flag = d->refdist_flag;
183    vc->quantizer = d->quantizer;
184    vc->extended_mv = d->extended_mv; // 14
185    vc->extended_dmv = d->extended_dmv;
186    vc->overlap = d->overlap;
187    vc->vstransform = d->vstransform;
188    return caps | 2;
189 }
190 
191 static uint32_t
nouveau_vp3_fill_picparm_h264_bsp(struct nouveau_vp3_decoder * dec,struct pipe_h264_picture_desc * d,char * map)192 nouveau_vp3_fill_picparm_h264_bsp(struct nouveau_vp3_decoder *dec,
193                                   struct pipe_h264_picture_desc *d,
194                                   char *map)
195 {
196    struct h264_picparm_bsp stub_h = {}, *h = &stub_h;
197    uint32_t caps = (d->slice_count << 4)&0xfff0;
198 
199    assert(!(d->slice_count & ~0xfff));
200    if (d->slice_count & 0x1000)
201       caps |= 1 << 20;
202 
203    assert(offsetof(struct h264_picparm_bsp, bottom_field_flag) == (0x39 + 0x24));
204    h->unk00 = 1;
205    h->pad1 = h->pad2 = 0;
206    h->unk = 0;
207    h->log2_max_frame_num_minus4 = d->pps->sps->log2_max_frame_num_minus4;
208    h->frame_mbs_only_flag = d->pps->sps->frame_mbs_only_flag;
209    h->direct_8x8_inference_flag = d->pps->sps->direct_8x8_inference_flag;
210    h->width_mb = mb(dec->base.width);
211    h->height_mb = mb(dec->base.height);
212    h->entropy_coding_mode_flag = d->pps->entropy_coding_mode_flag;
213    h->pic_order_present_flag = d->pps->bottom_field_pic_order_in_frame_present_flag;
214    h->pic_order_cnt_type = d->pps->sps->pic_order_cnt_type;
215    h->log2_max_pic_order_cnt_lsb_minus4 = d->pps->sps->log2_max_pic_order_cnt_lsb_minus4;
216    h->delta_pic_order_always_zero_flag = d->pps->sps->delta_pic_order_always_zero_flag;
217    h->num_ref_idx_l0_active_minus1 = d->num_ref_idx_l0_active_minus1;
218    h->num_ref_idx_l1_active_minus1 = d->num_ref_idx_l1_active_minus1;
219    h->weighted_pred_flag = d->pps->weighted_pred_flag;
220    h->weighted_bipred_idc = d->pps->weighted_bipred_idc;
221    h->pic_init_qp_minus26 = d->pps->pic_init_qp_minus26;
222    h->deblocking_filter_control_present_flag = d->pps->deblocking_filter_control_present_flag;
223    h->redundant_pic_cnt_present_flag = d->pps->redundant_pic_cnt_present_flag;
224    h->transform_8x8_mode_flag = d->pps->transform_8x8_mode_flag;
225    h->mb_adaptive_frame_field_flag = d->pps->sps->mb_adaptive_frame_field_flag;
226    h->field_pic_flag = d->field_pic_flag;
227    h->bottom_field_flag = d->bottom_field_flag;
228    memset(h->real_pad, 0, sizeof(h->real_pad));
229    *(struct h264_picparm_bsp *)map = *h;
230    return caps | 3;
231 }
232 
strparm_bsp(struct nouveau_vp3_decoder * dec)233 static inline struct strparm_bsp *strparm_bsp(struct nouveau_vp3_decoder *dec)
234 {
235    unsigned comm_seq = dec->fence_seq;
236    struct nouveau_bo *bsp_bo = dec->bsp_bo[comm_seq % NOUVEAU_VP3_VIDEO_QDEPTH];
237    return (struct strparm_bsp *)(bsp_bo->map + 0x100);
238 }
239 
240 void
nouveau_vp3_bsp_begin(struct nouveau_vp3_decoder * dec)241 nouveau_vp3_bsp_begin(struct nouveau_vp3_decoder *dec)
242 {
243    struct strparm_bsp *str_bsp = strparm_bsp(dec);
244 
245    dec->bsp_ptr = (void *)str_bsp;
246    memset(str_bsp, 0, 0x80);
247    dec->bsp_ptr += 0x100;
248    /* Reserved for picparm_vp */
249    dec->bsp_ptr += 0x300;
250    /* Reserved for comm */
251 #if !NOUVEAU_VP3_DEBUG_FENCE
252    memset(dec->bsp_ptr, 0, 0x200);
253 #endif
254    dec->bsp_ptr += 0x200;
255 }
256 
257 void
nouveau_vp3_bsp_next(struct nouveau_vp3_decoder * dec,unsigned num_buffers,const void * const * data,const unsigned * num_bytes)258 nouveau_vp3_bsp_next(struct nouveau_vp3_decoder *dec, unsigned num_buffers,
259                      const void *const *data, const unsigned *num_bytes)
260 {
261 #ifndef NDEBUG
262    unsigned comm_seq = dec->fence_seq;
263    struct nouveau_bo *bsp_bo = dec->bsp_bo[comm_seq % NOUVEAU_VP3_VIDEO_QDEPTH];
264 #endif
265    struct strparm_bsp *str_bsp = strparm_bsp(dec);
266    int i;
267 
268    for (i = 0; i < num_buffers; ++i) {
269 #ifndef NDEBUG
270       assert(bsp_bo->size >= str_bsp->w0[0] + num_bytes[i]);
271 #endif
272       memcpy(dec->bsp_ptr, data[i], num_bytes[i]);
273       dec->bsp_ptr += num_bytes[i];
274       str_bsp->w0[0] += num_bytes[i];
275    }
276 }
277 
278 uint32_t
nouveau_vp3_bsp_end(struct nouveau_vp3_decoder * dec,union pipe_desc desc)279 nouveau_vp3_bsp_end(struct nouveau_vp3_decoder *dec, union pipe_desc desc)
280 {
281    enum pipe_video_format codec = u_reduce_video_profile(dec->base.profile);
282    unsigned comm_seq = dec->fence_seq;
283    struct nouveau_bo *bsp_bo = dec->bsp_bo[comm_seq % NOUVEAU_VP3_VIDEO_QDEPTH];
284    uint32_t endmarker, caps;
285    struct strparm_bsp *str_bsp = strparm_bsp(dec);
286    char *bsp = bsp_bo->map;
287    /*
288     * 0x000..0x100: picparm_bsp
289     * 0x200..0x500: picparm_vp
290     * 0x500..0x700: comm
291     * 0x700..onward: raw bitstream
292     */
293 
294    switch (codec){
295    case PIPE_VIDEO_FORMAT_MPEG12:
296       endmarker = 0xb7010000;
297       caps = nouveau_vp3_fill_picparm_mpeg12_bsp(dec, desc.mpeg12, bsp);
298       break;
299    case PIPE_VIDEO_FORMAT_MPEG4:
300       endmarker = 0xb1010000;
301       caps = nouveau_vp3_fill_picparm_mpeg4_bsp(dec, desc.mpeg4, bsp);
302       break;
303    case PIPE_VIDEO_FORMAT_VC1: {
304       endmarker = 0x0a010000;
305       caps = nouveau_vp3_fill_picparm_vc1_bsp(dec, desc.vc1, bsp);
306       break;
307    }
308    case PIPE_VIDEO_FORMAT_MPEG4_AVC: {
309       endmarker = 0x0b010000;
310       caps = nouveau_vp3_fill_picparm_h264_bsp(dec, desc.h264, bsp);
311       break;
312    }
313    default: assert(0); return -1;
314    }
315 
316    caps |= 0 << 16; // reset struct comm if flag is set
317    caps |= 1 << 17; // enable watchdog
318    caps |= 0 << 18; // do not report error to VP, so it can continue decoding what we have
319    caps |= 0 << 19; // if enabled, use crypto crap?
320 
321    str_bsp = strparm_bsp(dec);
322    str_bsp->w1[0] = 0x1;
323 
324    /* Append end sequence */
325    *(uint32_t *)dec->bsp_ptr = endmarker;
326    dec->bsp_ptr += 4;
327    *(uint32_t *)dec->bsp_ptr = 0x00000000;
328    dec->bsp_ptr += 4;
329    *(uint32_t *)dec->bsp_ptr = endmarker;
330    dec->bsp_ptr += 4;
331    *(uint32_t *)dec->bsp_ptr = 0x00000000;
332    str_bsp->w0[0] += 16;
333 
334    dec->bsp_ptr = NULL;
335 
336    return caps;
337 }
338