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
29struct 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
56union 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
64struct 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
124struct 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
143static inline uint32_t nouveau_vp3_video_align(uint32_t h)
144{
145   return ((h+0x3f)&~0x3f);
146};
147
148static inline uint32_t mb(uint32_t coord)
149{
150   return (coord + 0xf)>>4;
151}
152
153static inline uint32_t mb_half(uint32_t coord)
154{
155   return (coord + 0x1f)>>5;
156}
157
158static inline uint64_t
159nouveau_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
169static inline void
170nouveau_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
190static inline void
191nouveau_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
203struct pipe_video_buffer *
204nouveau_vp3_video_buffer_create(struct pipe_context *pipe,
205                                const struct pipe_video_buffer *templat,
206                                int flags);
207
208void
209nouveau_vp3_decoder_init_common(struct pipe_video_codec *decoder);
210
211int
212nouveau_vp3_load_firmware(struct nouveau_vp3_decoder *dec,
213                          enum pipe_video_profile profile,
214                          unsigned chipset);
215
216void
217nouveau_vp3_bsp_begin(struct nouveau_vp3_decoder *dec);
218
219void
220nouveau_vp3_bsp_next(struct nouveau_vp3_decoder *dec, unsigned num_buffers,
221                     const void *const *data, const unsigned *num_bytes);
222
223uint32_t
224nouveau_vp3_bsp_end(struct nouveau_vp3_decoder *dec, union pipe_desc desc);
225
226void
227nouveau_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
232int
233nouveau_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
238bool
239nouveau_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);
243