1 /**************************************************************************
3 * Copyright 2013 Advanced Micro Devices, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Christian König <christian.koenig@amd.com>
36 #include "pipe/p_video_codec.h"
38 #include "util/u_video.h"
39 #include "util/u_memory.h"
41 #include "vl/vl_video_buffer.h"
43 #include "r600_pipe_common.h"
44 #include "radeon_video.h"
45 #include "radeon_vce.h"
47 static const unsigned profiles
[7] = { 66, 77, 88, 100, 110, 122, 244 };
49 static void session(struct rvce_encoder
*enc
)
51 RVCE_BEGIN(0x00000001); // session cmd
52 RVCE_CS(enc
->stream_handle
);
56 static void task_info(struct rvce_encoder
*enc
, uint32_t op
,
57 uint32_t dep
, uint32_t fb_idx
, uint32_t ring_idx
)
59 RVCE_BEGIN(0x00000002); // task info
61 if (enc
->task_info_idx
) {
62 uint32_t offs
= enc
->cs
->cdw
- enc
->task_info_idx
+ 3;
63 // Update offsetOfNextTaskInfo
64 enc
->cs
->buf
[enc
->task_info_idx
] = offs
;
66 enc
->task_info_idx
= enc
->cs
->cdw
;
68 RVCE_CS(0xffffffff); // offsetOfNextTaskInfo
69 RVCE_CS(op
); // taskOperation
70 RVCE_CS(dep
); // referencePictureDependency
71 RVCE_CS(0x00000000); // collocateFlagDependency
72 RVCE_CS(fb_idx
); // feedbackIndex
73 RVCE_CS(ring_idx
); // videoBitstreamRingIndex
77 static void feedback(struct rvce_encoder
*enc
)
79 RVCE_BEGIN(0x05000005); // feedback buffer
80 RVCE_WRITE(enc
->fb
->res
->cs_buf
, enc
->fb
->res
->domains
, 0x0); // feedbackRingAddressHi/Lo
81 RVCE_CS(0x00000001); // feedbackRingSize
85 static void create(struct rvce_encoder
*enc
)
87 enc
->task_info(enc
, 0x00000000, 0, 0, 0);
89 RVCE_BEGIN(0x01000001); // create cmd
90 RVCE_CS(0x00000000); // encUseCircularBuffer
91 RVCE_CS(profiles
[enc
->base
.profile
-
92 PIPE_VIDEO_PROFILE_MPEG4_AVC_BASELINE
]); // encProfile
93 RVCE_CS(enc
->base
.level
); // encLevel
94 RVCE_CS(0x00000000); // encPicStructRestriction
95 RVCE_CS(enc
->base
.width
); // encImageWidth
96 RVCE_CS(enc
->base
.height
); // encImageHeight
97 RVCE_CS(enc
->luma
->level
[0].pitch_bytes
); // encRefPicLumaPitch
98 RVCE_CS(enc
->chroma
->level
[0].pitch_bytes
); // encRefPicChromaPitch
99 RVCE_CS(align(enc
->luma
->npix_y
, 16) / 8); // encRefYHeightInQw
100 RVCE_CS(0x00000000); // encRefPic(Addr|Array)Mode, encPicStructRestriction, disableRDO
104 static void rate_control(struct rvce_encoder
*enc
)
106 RVCE_BEGIN(0x04000005); // rate control
107 RVCE_CS(enc
->pic
.rate_ctrl
.rate_ctrl_method
); // encRateControlMethod
108 RVCE_CS(enc
->pic
.rate_ctrl
.target_bitrate
); // encRateControlTargetBitRate
109 RVCE_CS(enc
->pic
.rate_ctrl
.peak_bitrate
); // encRateControlPeakBitRate
110 RVCE_CS(enc
->pic
.rate_ctrl
.frame_rate_num
); // encRateControlFrameRateNum
111 RVCE_CS(0x00000000); // encGOPSize
112 RVCE_CS(enc
->pic
.quant_i_frames
); // encQP_I
113 RVCE_CS(enc
->pic
.quant_p_frames
); // encQP_P
114 RVCE_CS(enc
->pic
.quant_b_frames
); // encQP_B
115 RVCE_CS(enc
->pic
.rate_ctrl
.vbv_buffer_size
); // encVBVBufferSize
116 RVCE_CS(enc
->pic
.rate_ctrl
.frame_rate_den
); // encRateControlFrameRateDen
117 RVCE_CS(0x00000000); // encVBVBufferLevel
118 RVCE_CS(0x00000000); // encMaxAUSize
119 RVCE_CS(0x00000000); // encQPInitialMode
120 RVCE_CS(enc
->pic
.rate_ctrl
.target_bits_picture
); // encTargetBitsPerPicture
121 RVCE_CS(enc
->pic
.rate_ctrl
.peak_bits_picture_integer
); // encPeakBitsPerPictureInteger
122 RVCE_CS(enc
->pic
.rate_ctrl
.peak_bits_picture_fraction
); // encPeakBitsPerPictureFractional
123 RVCE_CS(0x00000000); // encMinQP
124 RVCE_CS(0x00000033); // encMaxQP
125 RVCE_CS(0x00000000); // encSkipFrameEnable
126 RVCE_CS(0x00000000); // encFillerDataEnable
127 RVCE_CS(0x00000000); // encEnforceHRD
128 RVCE_CS(0x00000000); // encBPicsDeltaQP
129 RVCE_CS(0x00000000); // encReferenceBPicsDeltaQP
130 RVCE_CS(0x00000000); // encRateControlReInitDisable
134 static void config_extension(struct rvce_encoder
*enc
)
136 RVCE_BEGIN(0x04000001); // config extension
137 RVCE_CS(0x00000003); // encEnablePerfLogging
141 static void pic_control(struct rvce_encoder
*enc
)
143 unsigned encNumMBsPerSlice
;
145 encNumMBsPerSlice
= align(enc
->base
.width
, 16) / 16;
146 encNumMBsPerSlice
*= align(enc
->base
.height
, 16) / 16;
148 RVCE_BEGIN(0x04000002); // pic control
149 RVCE_CS(0x00000000); // encUseConstrainedIntraPred
150 RVCE_CS(0x00000000); // encCABACEnable
151 RVCE_CS(0x00000000); // encCABACIDC
152 RVCE_CS(0x00000000); // encLoopFilterDisable
153 RVCE_CS(0x00000000); // encLFBetaOffset
154 RVCE_CS(0x00000000); // encLFAlphaC0Offset
155 RVCE_CS(0x00000000); // encCropLeftOffset
156 RVCE_CS((align(enc
->base
.width
, 16) - enc
->base
.width
) >> 1); // encCropRightOffset
157 RVCE_CS(0x00000000); // encCropTopOffset
158 RVCE_CS((align(enc
->base
.height
, 16) - enc
->base
.height
) >> 1); // encCropBottomOffset
159 RVCE_CS(encNumMBsPerSlice
); // encNumMBsPerSlice
160 RVCE_CS(0x00000000); // encIntraRefreshNumMBsPerSlot
161 RVCE_CS(0x00000000); // encForceIntraRefresh
162 RVCE_CS(0x00000000); // encForceIMBPeriod
163 RVCE_CS(0x00000000); // encPicOrderCntType
164 RVCE_CS(0x00000000); // log2_max_pic_order_cnt_lsb_minus4
165 RVCE_CS(0x00000000); // encSPSID
166 RVCE_CS(0x00000000); // encPPSID
167 RVCE_CS(0x00000040); // encConstraintSetFlags
168 RVCE_CS(MAX2(enc
->base
.max_references
, 1) - 1); // encBPicPattern
169 RVCE_CS(0x00000000); // weightPredModeBPicture
170 RVCE_CS(MIN2(enc
->base
.max_references
, 2)); // encNumberOfReferenceFrames
171 RVCE_CS(enc
->base
.max_references
+ 1); // encMaxNumRefFrames
172 RVCE_CS(0x00000001); // encNumDefaultActiveRefL0
173 RVCE_CS(0x00000001); // encNumDefaultActiveRefL1
174 RVCE_CS(0x00000000); // encSliceMode
175 RVCE_CS(0x00000000); // encMaxSliceSize
179 static void motion_estimation(struct rvce_encoder
*enc
)
181 RVCE_BEGIN(0x04000007); // motion estimation
182 RVCE_CS(0x00000001); // encIMEDecimationSearch
183 RVCE_CS(0x00000001); // motionEstHalfPixel
184 RVCE_CS(0x00000000); // motionEstQuarterPixel
185 RVCE_CS(0x00000000); // disableFavorPMVPoint
186 RVCE_CS(0x00000000); // forceZeroPointCenter
187 RVCE_CS(0x00000000); // LSMVert
188 RVCE_CS(0x00000010); // encSearchRangeX
189 RVCE_CS(0x00000010); // encSearchRangeY
190 RVCE_CS(0x00000010); // encSearch1RangeX
191 RVCE_CS(0x00000010); // encSearch1RangeY
192 RVCE_CS(0x00000000); // disable16x16Frame1
193 RVCE_CS(0x00000000); // disableSATD
194 RVCE_CS(0x00000000); // enableAMD
195 RVCE_CS(0x000000fe); // encDisableSubMode
196 RVCE_CS(0x00000000); // encIMESkipX
197 RVCE_CS(0x00000000); // encIMESkipY
198 RVCE_CS(0x00000000); // encEnImeOverwDisSubm
199 RVCE_CS(0x00000000); // encImeOverwDisSubmNo
200 RVCE_CS(0x00000001); // encIME2SearchRangeX
201 RVCE_CS(0x00000001); // encIME2SearchRangeY
202 RVCE_CS(0x00000000); // parallelModeSpeedupEnable
203 RVCE_CS(0x00000000); // fme0_encDisableSubMode
204 RVCE_CS(0x00000000); // fme1_encDisableSubMode
205 RVCE_CS(0x00000000); // imeSWSpeedupEnable
209 static void rdo(struct rvce_encoder
*enc
)
211 RVCE_BEGIN(0x04000008); // rdo
212 RVCE_CS(0x00000000); // encDisableTbePredIFrame
213 RVCE_CS(0x00000000); // encDisableTbePredPFrame
214 RVCE_CS(0x00000000); // useFmeInterpolY
215 RVCE_CS(0x00000000); // useFmeInterpolUV
216 RVCE_CS(0x00000000); // useFmeIntrapolY
217 RVCE_CS(0x00000000); // useFmeIntrapolUV
218 RVCE_CS(0x00000000); // useFmeInterpolY_1
219 RVCE_CS(0x00000000); // useFmeInterpolUV_1
220 RVCE_CS(0x00000000); // useFmeIntrapolY_1
221 RVCE_CS(0x00000000); // useFmeIntrapolUV_1
222 RVCE_CS(0x00000000); // enc16x16CostAdj
223 RVCE_CS(0x00000000); // encSkipCostAdj
224 RVCE_CS(0x00000000); // encForce16x16skip
225 RVCE_CS(0x00000000); // encDisableThresholdCalcA
226 RVCE_CS(0x00000000); // encLumaCoeffCost
227 RVCE_CS(0x00000000); // encLumaMBCoeffCost
228 RVCE_CS(0x00000000); // encChromaCoeffCost
232 static void vui(struct rvce_encoder
*enc
)
236 RVCE_BEGIN(0x04000009); // vui
237 RVCE_CS(0x00000000); //aspectRatioInfoPresentFlag
238 RVCE_CS(0x00000000); //aspectRatioInfo.aspectRatioIdc
239 RVCE_CS(0x00000000); //aspectRatioInfo.sarWidth
240 RVCE_CS(0x00000000); //aspectRatioInfo.sarHeight
241 RVCE_CS(0x00000000); //overscanInfoPresentFlag
242 RVCE_CS(0x00000000); //overScanInfo.overscanAppropFlag
243 RVCE_CS(0x00000000); //videoSignalTypePresentFlag
244 RVCE_CS(0x00000005); //videoSignalTypeInfo.videoFormat
245 RVCE_CS(0x00000000); //videoSignalTypeInfo.videoFullRangeFlag
246 RVCE_CS(0x00000000); //videoSignalTypeInfo.colorDescriptionPresentFlag
247 RVCE_CS(0x00000002); //videoSignalTypeInfo.colorPrim
248 RVCE_CS(0x00000002); //videoSignalTypeInfo.transferChar
249 RVCE_CS(0x00000002); //videoSignalTypeInfo.matrixCoef
250 RVCE_CS(0x00000000); //chromaLocInfoPresentFlag
251 RVCE_CS(0x00000000); //chromaLocInfo.chromaLocTop
252 RVCE_CS(0x00000000); //chromaLocInfo.chromaLocBottom
253 RVCE_CS(0x00000001); //timingInfoPresentFlag
254 RVCE_CS(enc
->pic
.rate_ctrl
.frame_rate_den
); //timingInfo.numUnitsInTick
255 RVCE_CS(enc
->pic
.rate_ctrl
.frame_rate_num
* 2); //timingInfo.timeScale;
256 RVCE_CS(0x00000001); //timingInfo.fixedFrameRateFlag
257 RVCE_CS(0x00000000); //nalHRDParametersPresentFlag
258 RVCE_CS(0x00000000); //hrdParam.cpbCntMinus1
259 RVCE_CS(0x00000004); //hrdParam.bitRateScale
260 RVCE_CS(0x00000006); //hrdParam.cpbSizeScale
261 for (i
= 0; i
< 32; i
++) {
262 RVCE_CS(0x00000000); //hrdParam.bitRateValueMinus
263 RVCE_CS(0x00000000); //hrdParam.cpbSizeValueMinus
264 RVCE_CS(0x00000000); //hrdParam.cbrFlag
266 RVCE_CS(0x00000017); //hrdParam.initialCpbRemovalDelayLengthMinus1
267 RVCE_CS(0x00000017); //hrdParam.cpbRemovalDelayLengthMinus1
268 RVCE_CS(0x00000017); //hrdParam.dpbOutputDelayLengthMinus1
269 RVCE_CS(0x00000018); //hrdParam.timeOffsetLength
270 RVCE_CS(0x00000000); //lowDelayHRDFlag
271 RVCE_CS(0x00000000); //picStructPresentFlag
272 RVCE_CS(0x00000000); //bitstreamRestrictionPresentFlag
273 RVCE_CS(0x00000001); //bitstreamRestrictions.motionVectorsOverPicBoundariesFlag
274 RVCE_CS(0x00000002); //bitstreamRestrictions.maxBytesPerPicDenom
275 RVCE_CS(0x00000001); //bitstreamRestrictions.maxBitsPerMbDenom
276 RVCE_CS(0x00000010); //bitstreamRestrictions.log2MaxMvLengthHori
277 RVCE_CS(0x00000010); //bitstreamRestrictions.log2MaxMvLengthVert
278 RVCE_CS(0x00000003); //bitstreamRestrictions.numReorderFrames
279 RVCE_CS(0x00000003); //bitstreamRestrictions.maxDecFrameBuffering
283 static void config(struct rvce_encoder
*enc
)
285 enc
->task_info(enc
, 0x00000002, 0, 0xffffffff, 0);
286 enc
->rate_control(enc
);
287 enc
->config_extension(enc
);
288 enc
->motion_estimation(enc
);
292 enc
->pic_control(enc
);
295 static void encode(struct rvce_encoder
*enc
)
297 signed luma_offset
, chroma_offset
;
300 enc
->task_info(enc
, 0x00000003, 0, 0, 0);
302 RVCE_BEGIN(0x05000001); // context buffer
303 RVCE_READWRITE(enc
->cpb
.res
->cs_buf
, enc
->cpb
.res
->domains
, 0x0); // encodeContextAddressHi/Lo
306 RVCE_BEGIN(0x05000004); // video bitstream buffer
307 RVCE_WRITE(enc
->bs_handle
, RADEON_DOMAIN_GTT
, 0x0); // videoBitstreamRingAddressHi/Lo
308 RVCE_CS(enc
->bs_size
); // videoBitstreamRingSize
311 RVCE_BEGIN(0x03000001); // encode
312 RVCE_CS(0x00000000); // insertHeaders
313 RVCE_CS(0x00000000); // pictureStructure
314 RVCE_CS(enc
->bs_size
); // allowedMaxBitstreamSize
315 RVCE_CS(0x00000000); // forceRefreshMap
316 RVCE_CS(0x00000000); // insertAUD
317 RVCE_CS(0x00000000); // endOfSequence
318 RVCE_CS(0x00000000); // endOfStream
319 RVCE_READ(enc
->handle
, RADEON_DOMAIN_VRAM
,
320 enc
->luma
->level
[0].offset
); // inputPictureLumaAddressHi/Lo
321 RVCE_READ(enc
->handle
, RADEON_DOMAIN_VRAM
,
322 enc
->chroma
->level
[0].offset
); // inputPictureChromaAddressHi/Lo
323 RVCE_CS(align(enc
->luma
->npix_y
, 16)); // encInputFrameYPitch
324 RVCE_CS(enc
->luma
->level
[0].pitch_bytes
); // encInputPicLumaPitch
325 RVCE_CS(enc
->chroma
->level
[0].pitch_bytes
); // encInputPicChromaPitch
326 RVCE_CS(0x00000000); // encInputPic(Addr|Array)Mode
327 RVCE_CS(0x00000000); // encInputPicTileConfig
328 RVCE_CS(enc
->pic
.picture_type
); // encPicType
329 RVCE_CS(enc
->pic
.picture_type
== PIPE_H264_ENC_PICTURE_TYPE_IDR
); // encIdrFlag
330 RVCE_CS(0x00000000); // encIdrPicId
331 RVCE_CS(0x00000000); // encMGSKeyPic
332 RVCE_CS(!enc
->pic
.not_referenced
); // encReferenceFlag
333 RVCE_CS(0x00000000); // encTemporalLayerIndex
334 RVCE_CS(0x00000000); // num_ref_idx_active_override_flag
335 RVCE_CS(0x00000000); // num_ref_idx_l0_active_minus1
336 RVCE_CS(0x00000000); // num_ref_idx_l1_active_minus1
338 i
= enc
->pic
.frame_num
- enc
->pic
.ref_idx_l0
;
339 if (i
> 1 && enc
->pic
.picture_type
== PIPE_H264_ENC_PICTURE_TYPE_P
) {
340 RVCE_CS(0x00000001); // encRefListModificationOp
341 RVCE_CS(i
- 1); // encRefListModificationNum
343 RVCE_CS(0x00000000); // encRefListModificationOp
344 RVCE_CS(0x00000000); // encRefListModificationNum
347 for (i
= 0; i
< 3; ++i
) {
348 RVCE_CS(0x00000000); // encRefListModificationOp
349 RVCE_CS(0x00000000); // encRefListModificationNum
351 for (i
= 0; i
< 4; ++i
) {
352 RVCE_CS(0x00000000); // encDecodedPictureMarkingOp
353 RVCE_CS(0x00000000); // encDecodedPictureMarkingNum
354 RVCE_CS(0x00000000); // encDecodedPictureMarkingIdx
355 RVCE_CS(0x00000000); // encDecodedRefBasePictureMarkingOp
356 RVCE_CS(0x00000000); // encDecodedRefBasePictureMarkingNum
359 // encReferencePictureL0[0]
360 RVCE_CS(0x00000000); // pictureStructure
361 if(enc
->pic
.picture_type
== PIPE_H264_ENC_PICTURE_TYPE_P
||
362 enc
->pic
.picture_type
== PIPE_H264_ENC_PICTURE_TYPE_B
) {
363 struct rvce_cpb_slot
*l0
= l0_slot(enc
);
364 rvce_frame_offset(enc
, l0
, &luma_offset
, &chroma_offset
);
365 RVCE_CS(l0
->picture_type
); // encPicType
366 RVCE_CS(l0
->frame_num
); // frameNumber
367 RVCE_CS(l0
->pic_order_cnt
); // pictureOrderCount
368 RVCE_CS(luma_offset
); // lumaOffset
369 RVCE_CS(chroma_offset
); // chromaOffset
371 RVCE_CS(0x00000000); // encPicType
372 RVCE_CS(0x00000000); // frameNumber
373 RVCE_CS(0x00000000); // pictureOrderCount
374 RVCE_CS(0xffffffff); // lumaOffset
375 RVCE_CS(0xffffffff); // chromaOffset
378 // encReferencePictureL0[1]
379 RVCE_CS(0x00000000); // pictureStructure
380 RVCE_CS(0x00000000); // encPicType
381 RVCE_CS(0x00000000); // frameNumber
382 RVCE_CS(0x00000000); // pictureOrderCount
383 RVCE_CS(0xffffffff); // lumaOffset
384 RVCE_CS(0xffffffff); // chromaOffset
386 // encReferencePictureL1[0]
387 RVCE_CS(0x00000000); // pictureStructure
388 if(enc
->pic
.picture_type
== PIPE_H264_ENC_PICTURE_TYPE_B
) {
389 struct rvce_cpb_slot
*l1
= l1_slot(enc
);
390 rvce_frame_offset(enc
, l1
, &luma_offset
, &chroma_offset
);
391 RVCE_CS(l1
->picture_type
); // encPicType
392 RVCE_CS(l1
->frame_num
); // frameNumber
393 RVCE_CS(l1
->pic_order_cnt
); // pictureOrderCount
394 RVCE_CS(luma_offset
); // lumaOffset
395 RVCE_CS(chroma_offset
); // chromaOffset
397 RVCE_CS(0x00000000); // encPicType
398 RVCE_CS(0x00000000); // frameNumber
399 RVCE_CS(0x00000000); // pictureOrderCount
400 RVCE_CS(0xffffffff); // lumaOffset
401 RVCE_CS(0xffffffff); // chromaOffset
404 rvce_frame_offset(enc
, current_slot(enc
), &luma_offset
, &chroma_offset
);
405 RVCE_CS(luma_offset
); // encReconstructedLumaOffset
406 RVCE_CS(chroma_offset
); // encReconstructedChromaOffset
407 RVCE_CS(0x00000000); // encColocBufferOffset
408 RVCE_CS(0x00000000); // encReconstructedRefBasePictureLumaOffset
409 RVCE_CS(0x00000000); // encReconstructedRefBasePictureChromaOffset
410 RVCE_CS(0x00000000); // encReferenceRefBasePictureLumaOffset
411 RVCE_CS(0x00000000); // encReferenceRefBasePictureChromaOffset
412 RVCE_CS(0x00000000); // pictureCount
413 RVCE_CS(enc
->pic
.frame_num
); // frameNumber
414 RVCE_CS(enc
->pic
.pic_order_cnt
); // pictureOrderCount
415 RVCE_CS(0x00000000); // numIPicRemainInRCGOP
416 RVCE_CS(0x00000000); // numPPicRemainInRCGOP
417 RVCE_CS(0x00000000); // numBPicRemainInRCGOP
418 RVCE_CS(0x00000000); // numIRPicRemainInRCGOP
419 RVCE_CS(0x00000000); // enableIntraRefresh
423 static void destroy(struct rvce_encoder
*enc
)
425 enc
->task_info(enc
, 0x00000001, 0, 0, 0);
427 RVCE_BEGIN(0x02000001); // destroy
431 void radeon_vce_40_2_2_init(struct rvce_encoder
*enc
)
433 enc
->session
= session
;
434 enc
->task_info
= task_info
;
435 enc
->create
= create
;
436 enc
->feedback
= feedback
;
437 enc
->rate_control
= rate_control
;
438 enc
->config_extension
= config_extension
;
439 enc
->pic_control
= pic_control
;
440 enc
->motion_estimation
= motion_estimation
;
443 enc
->config
= config
;
444 enc
->encode
= encode
;
445 enc
->destroy
= destroy
;