1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  * Copyright (c) 2010 - 2014, The Linux Foundation. All rights reserved.
4  *
5  * Not a Contribution, Apache license notifications and license are retained
6  * for attribution purposes only.
7  *
8  * Licensed under the Apache License, Version 2.0 (the "License");
9  * you may not use this file except in compliance with the License.
10  * You may obtain a copy of the License at
11  *
12  *      http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing, software
15  * distributed under the License is distributed on an "AS IS" BASIS,
16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17  * See the License for the specific language governing permissions and
18  * limitations under the License.
19  */
20 
21 #include <errno.h>
22 #include <fcntl.h>
23 #include <linux/msm_mdp.h>
24 #include <linux/fb.h>
25 #include <stdint.h>
26 #include <string.h>
27 #include <sys/ioctl.h>
28 #include <sys/mman.h>
29 #include <sys/types.h>
30 #include <unistd.h>
31 
32 #include <log/log.h>
33 
34 #include <copybit.h>
35 
36 #include "gralloc_priv.h"
37 #include "software_converter.h"
38 #include <qdMetaData.h>
39 
40 #define DEBUG_MDP_ERRORS 1
41 
42 /******************************************************************************/
43 
44 #define MAX_SCALE_FACTOR    (4)
45 #define MAX_DIMENSION       (4096)
46 
47 /******************************************************************************/
48 struct blitReq{
49     struct  mdp_buf_sync sync;
50     uint32_t count;
51     struct mdp_blit_req req[10];
52 };
53 
54 /** State information for each device instance */
55 struct copybit_context_t {
56     struct copybit_device_t device;
57     int     mFD;
58     uint8_t mAlpha;
59     int     mFlags;
60     bool    mBlitToFB;
61     int     acqFence[MDP_MAX_FENCE_FD];
62     int     relFence;
63     struct  mdp_buf_sync sync;
64     struct  blitReq list;
65     uint8_t dynamic_fps;
66 };
67 
68 /**
69  * Common hardware methods
70  */
71 
72 static int open_copybit(const struct hw_module_t* module, const char* name,
73                         struct hw_device_t** device);
74 
75 static struct hw_module_methods_t copybit_module_methods = {
76 open:  open_copybit
77 };
78 
79 /*
80  * The COPYBIT Module
81  */
82 struct copybit_module_t HAL_MODULE_INFO_SYM = {
83 common: {
84 tag: HARDWARE_MODULE_TAG,
85      version_major: 1,
86      version_minor: 0,
87      id: COPYBIT_HARDWARE_MODULE_ID,
88      name: "QCT MSM7K COPYBIT Module",
89      author: "Google, Inc.",
90      methods: &copybit_module_methods
91         }
92 };
93 
94 /******************************************************************************/
95 
96 /** min of int a, b */
min(int a,int b)97 static inline int min(int a, int b) {
98     return (a<b) ? a : b;
99 }
100 
101 /** max of int a, b */
max(int a,int b)102 static inline int max(int a, int b) {
103     return (a>b) ? a : b;
104 }
105 
106 /** scale each parameter by mul/div. Assume div isn't 0 */
MULDIV(uint32_t * a,uint32_t * b,int mul,int div)107 static inline void MULDIV(uint32_t *a, uint32_t *b, int mul, int div) {
108     if (mul != div) {
109         *a = (mul * *a) / div;
110         *b = (mul * *b) / div;
111     }
112 }
113 
114 /** Determine the intersection of lhs & rhs store in out */
intersect(struct copybit_rect_t * out,const struct copybit_rect_t * lhs,const struct copybit_rect_t * rhs)115 static void intersect(struct copybit_rect_t *out,
116                       const struct copybit_rect_t *lhs,
117                       const struct copybit_rect_t *rhs) {
118     out->l = max(lhs->l, rhs->l);
119     out->t = max(lhs->t, rhs->t);
120     out->r = min(lhs->r, rhs->r);
121     out->b = min(lhs->b, rhs->b);
122 }
123 
validateCopybitRect(struct copybit_rect_t * rect)124 static bool validateCopybitRect(struct copybit_rect_t *rect) {
125     return ((rect->b > rect->t) && (rect->r > rect->l)) ;
126 }
127 
128 /** convert COPYBIT_FORMAT to MDP format */
get_format(int format)129 static int get_format(int format) {
130     switch (format) {
131         case HAL_PIXEL_FORMAT_RGB_565:       return MDP_RGB_565;
132         case HAL_PIXEL_FORMAT_RGBA_5551:     return MDP_RGBA_5551;
133         case HAL_PIXEL_FORMAT_RGBA_4444:     return MDP_RGBA_4444;
134         case HAL_PIXEL_FORMAT_RGBX_8888:     return MDP_RGBX_8888;
135         case HAL_PIXEL_FORMAT_BGRX_8888:     return MDP_BGRX_8888;
136         case HAL_PIXEL_FORMAT_RGB_888:       return MDP_RGB_888;
137         case HAL_PIXEL_FORMAT_RGBA_8888:     return MDP_RGBA_8888;
138         case HAL_PIXEL_FORMAT_BGRA_8888:     return MDP_BGRA_8888;
139         case HAL_PIXEL_FORMAT_YCrCb_422_I:   return MDP_YCRYCB_H2V1;
140         case HAL_PIXEL_FORMAT_YCbCr_422_I:   return MDP_YCBYCR_H2V1;
141         case HAL_PIXEL_FORMAT_YCrCb_422_SP:  return MDP_Y_CRCB_H2V1;
142         case HAL_PIXEL_FORMAT_YCrCb_420_SP:  return MDP_Y_CRCB_H2V2;
143         case HAL_PIXEL_FORMAT_YCbCr_422_SP:  return MDP_Y_CBCR_H2V1;
144         case HAL_PIXEL_FORMAT_YCbCr_420_SP:  return MDP_Y_CBCR_H2V2;
145         case HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO: return MDP_Y_CBCR_H2V2_ADRENO;
146         case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS: return MDP_Y_CBCR_H2V2_VENUS;
147         case HAL_PIXEL_FORMAT_YCrCb_420_SP_VENUS: return MDP_Y_CRCB_H2V2_VENUS;
148         case HAL_PIXEL_FORMAT_NV12_ENCODEABLE: return MDP_Y_CBCR_H2V2;
149         case HAL_PIXEL_FORMAT_CbYCrY_422_I: return MDP_CBYCRY_H2V1;
150         case HAL_PIXEL_FORMAT_BGR_888: return MDP_BGR_888;
151     }
152     return -1;
153 }
154 
155 /** convert from copybit image to mdp image structure */
set_image(struct mdp_img * img,const struct copybit_image_t * rhs)156 static void set_image(struct mdp_img *img, const struct copybit_image_t *rhs)
157 {
158     private_handle_t* hnd = (private_handle_t*)rhs->handle;
159     if(hnd == NULL){
160         ALOGE("copybit: Invalid handle");
161         return;
162     }
163     img->width      = rhs->w;
164     img->height     = rhs->h;
165     img->format     = get_format(rhs->format);
166     img->offset     = (uint32_t)hnd->offset;
167     img->memory_id  = hnd->fd;
168 }
169 /** setup rectangles */
set_rects(struct copybit_context_t * dev,struct mdp_blit_req * e,const struct copybit_rect_t * dst,const struct copybit_rect_t * src,const struct copybit_rect_t * scissor)170 static bool set_rects(struct copybit_context_t *dev,
171                       struct mdp_blit_req *e,
172                       const struct copybit_rect_t *dst,
173                       const struct copybit_rect_t *src,
174                       const struct copybit_rect_t *scissor) {
175     struct copybit_rect_t clip;
176     intersect(&clip, scissor, dst);
177 
178     if (!validateCopybitRect(&clip))
179        return false;
180 
181     e->dst_rect.x  = clip.l;
182     e->dst_rect.y  = clip.t;
183     e->dst_rect.w  = clip.r - clip.l;
184     e->dst_rect.h  = clip.b - clip.t;
185 
186     uint32_t W, H, delta_x, delta_y;
187     if (dev->mFlags & COPYBIT_TRANSFORM_ROT_90) {
188         delta_x = (clip.t - dst->t);
189         delta_y = (dst->r - clip.r);
190         e->src_rect.w = (clip.b - clip.t);
191         e->src_rect.h = (clip.r - clip.l);
192         W = dst->b - dst->t;
193         H = dst->r - dst->l;
194     } else {
195         delta_x  = (clip.l - dst->l);
196         delta_y  = (clip.t - dst->t);
197         e->src_rect.w  = (clip.r - clip.l);
198         e->src_rect.h  = (clip.b - clip.t);
199         W = dst->r - dst->l;
200         H = dst->b - dst->t;
201     }
202 
203     MULDIV(&delta_x, &e->src_rect.w, src->r - src->l, W);
204     MULDIV(&delta_y, &e->src_rect.h, src->b - src->t, H);
205 
206     e->src_rect.x = delta_x + src->l;
207     e->src_rect.y = delta_y + src->t;
208 
209     if (dev->mFlags & COPYBIT_TRANSFORM_FLIP_V) {
210         if (dev->mFlags & COPYBIT_TRANSFORM_ROT_90) {
211             e->src_rect.x = (src->l + src->r) - (e->src_rect.x + e->src_rect.w);
212         }else{
213             e->src_rect.y = (src->t + src->b) - (e->src_rect.y + e->src_rect.h);
214         }
215     }
216 
217     if (dev->mFlags & COPYBIT_TRANSFORM_FLIP_H) {
218         if (dev->mFlags & COPYBIT_TRANSFORM_ROT_90) {
219             e->src_rect.y = (src->t + src->b) - (e->src_rect.y + e->src_rect.h);
220         }else{
221             e->src_rect.x = (src->l + src->r) - (e->src_rect.x + e->src_rect.w);
222         }
223     }
224     return true;
225 }
226 
227 /** setup mdp request */
set_infos(struct copybit_context_t * dev,struct mdp_blit_req * req,int flags)228 static void set_infos(struct copybit_context_t *dev,
229                       struct mdp_blit_req *req, int flags)
230 {
231     req->alpha = dev->mAlpha;
232     req->fps = dev->dynamic_fps;
233     req->transp_mask = MDP_TRANSP_NOP;
234     req->flags = dev->mFlags | flags;
235     // check if we are blitting to f/b
236     if (COPYBIT_ENABLE == dev->mBlitToFB) {
237         req->flags |= MDP_MEMORY_ID_TYPE_FB;
238     }
239 #if defined(COPYBIT_QSD8K)
240     req->flags |= MDP_BLEND_FG_PREMULT;
241 #endif
242 }
243 
244 /** copy the bits */
msm_copybit(struct copybit_context_t * dev,void const * list)245 static int msm_copybit(struct copybit_context_t *dev, void const *list)
246 {
247     int err;
248     if (dev->relFence != -1) {
249         close(dev->relFence);
250         dev->relFence = -1;
251     }
252     err = ioctl(dev->mFD, MSMFB_ASYNC_BLIT,
253                     (struct mdp_async_blit_req_list const*)list);
254     ALOGE_IF(err<0, "copyBits failed (%s)", strerror(errno));
255     if (err == 0) {
256         return 0;
257     } else {
258 #if DEBUG_MDP_ERRORS
259         struct mdp_async_blit_req_list const* l =
260             (struct mdp_async_blit_req_list const*)list;
261         for (unsigned int i=0 ; i<l->count ; i++) {
262             ALOGE("%d: src={w=%d, h=%d, f=%d, rect={%d,%d,%d,%d}}\n"
263                   "    dst={w=%d, h=%d, f=%d, rect={%d,%d,%d,%d}}\n"
264                   "    flags=%08x, fps=%d"
265                   ,
266                   i,
267                   l->req[i].src.width,
268                   l->req[i].src.height,
269                   l->req[i].src.format,
270                   l->req[i].src_rect.x,
271                   l->req[i].src_rect.y,
272                   l->req[i].src_rect.w,
273                   l->req[i].src_rect.h,
274                   l->req[i].dst.width,
275                   l->req[i].dst.height,
276                   l->req[i].dst.format,
277                   l->req[i].dst_rect.x,
278                   l->req[i].dst_rect.y,
279                   l->req[i].dst_rect.w,
280                   l->req[i].dst_rect.h,
281                   l->req[i].flags,
282                   l->req[i].fps
283                  );
284         }
285 #endif
286         return -errno;
287     }
288 }
289 
290 /*****************************************************************************/
291 
292 /** Set a parameter to value */
set_parameter_copybit(struct copybit_device_t * dev,int name,int value)293 static int set_parameter_copybit(
294     struct copybit_device_t *dev,
295     int name,
296     int value)
297 {
298     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
299     int status = 0;
300     if (ctx) {
301         switch(name) {
302             case COPYBIT_ROTATION_DEG:
303                 switch (value) {
304                     case 0:
305                         ctx->mFlags &= ~0x7;
306                         break;
307                     case 90:
308                         ctx->mFlags &= ~0x7;
309                         ctx->mFlags |= MDP_ROT_90;
310                         break;
311                     case 180:
312                         ctx->mFlags &= ~0x7;
313                         ctx->mFlags |= MDP_ROT_180;
314                         break;
315                     case 270:
316                         ctx->mFlags &= ~0x7;
317                         ctx->mFlags |= MDP_ROT_270;
318                         break;
319                     default:
320                         ALOGE("Invalid value for COPYBIT_ROTATION_DEG");
321                         status = -EINVAL;
322                         break;
323                 }
324                 break;
325             case COPYBIT_PLANE_ALPHA:
326                 if (value < 0)      value = MDP_ALPHA_NOP;
327                 if (value >= 256)   value = 255;
328                 ctx->mAlpha = (uint8_t)value;
329                 break;
330             case COPYBIT_DYNAMIC_FPS:
331                 ctx->dynamic_fps = (uint8_t)value;
332                 break;
333             case COPYBIT_DITHER:
334                 if (value == COPYBIT_ENABLE) {
335                     ctx->mFlags |= MDP_DITHER;
336                 } else if (value == COPYBIT_DISABLE) {
337                     ctx->mFlags &= ~MDP_DITHER;
338                 }
339                 break;
340             case COPYBIT_BLUR:
341                 if (value == COPYBIT_ENABLE) {
342                     ctx->mFlags |= MDP_BLUR;
343                 } else if (value == COPYBIT_DISABLE) {
344                     ctx->mFlags &= ~MDP_BLUR;
345                 }
346                 break;
347             case COPYBIT_BLEND_MODE:
348                 if(value == COPYBIT_BLENDING_PREMULT) {
349                     ctx->mFlags |= MDP_BLEND_FG_PREMULT;
350                 } else {
351                     ctx->mFlags &= ~MDP_BLEND_FG_PREMULT;
352                 }
353                 break;
354             case COPYBIT_TRANSFORM:
355                 ctx->mFlags &= ~0x7;
356                 ctx->mFlags |= value & 0x7;
357                 break;
358             case COPYBIT_BLIT_TO_FRAMEBUFFER:
359                 if (COPYBIT_ENABLE == value) {
360                     ctx->mBlitToFB = value;
361                 } else if (COPYBIT_DISABLE == value) {
362                     ctx->mBlitToFB = value;
363                 } else {
364                     ALOGE ("%s:Invalid input for COPYBIT_BLIT_TO_FRAMEBUFFER : %d",
365                             __FUNCTION__, value);
366                 }
367                 break;
368             case COPYBIT_FG_LAYER:
369                 if(value == COPYBIT_ENABLE) {
370                      ctx->mFlags |= MDP_IS_FG;
371                 } else if (value == COPYBIT_DISABLE) {
372                     ctx->mFlags &= ~MDP_IS_FG;
373                 }
374                 break ;
375             default:
376                 status = -EINVAL;
377                 break;
378         }
379     } else {
380         status = -EINVAL;
381     }
382     return status;
383 }
384 
385 /** Get a static info value */
get(struct copybit_device_t * dev,int name)386 static int get(struct copybit_device_t *dev, int name)
387 {
388     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
389     int value;
390     if (ctx) {
391         switch(name) {
392             case COPYBIT_MINIFICATION_LIMIT:
393                 value = MAX_SCALE_FACTOR;
394                 break;
395             case COPYBIT_MAGNIFICATION_LIMIT:
396                 value = MAX_SCALE_FACTOR;
397                 break;
398             case COPYBIT_SCALING_FRAC_BITS:
399                 value = 32;
400                 break;
401             case COPYBIT_ROTATION_STEP_DEG:
402                 value = 90;
403                 break;
404             default:
405                 value = -EINVAL;
406         }
407     } else {
408         value = -EINVAL;
409     }
410     return value;
411 }
412 
set_sync_copybit(struct copybit_device_t * dev,int acquireFenceFd)413 static int set_sync_copybit(struct copybit_device_t *dev,
414     int acquireFenceFd)
415 {
416     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
417     if (acquireFenceFd != -1) {
418         if (ctx->list.sync.acq_fen_fd_cnt < (MDP_MAX_FENCE_FD - 1)) {
419             ctx->acqFence[ctx->list.sync.acq_fen_fd_cnt++] = acquireFenceFd;
420         } else {
421             int ret = -EINVAL;
422             struct blitReq *list = &ctx->list;
423 
424             // Since fence is full kick off what is already in the list
425             ret = msm_copybit(ctx, list);
426             if (ret < 0) {
427                 ALOGE("%s: Blit call failed", __FUNCTION__);
428                 return -EINVAL;
429             }
430             list->count = 0;
431             list->sync.acq_fen_fd_cnt = 0;
432             ctx->acqFence[list->sync.acq_fen_fd_cnt++] = acquireFenceFd;
433         }
434     }
435     return 0;
436 }
437 
438 /** do a stretch blit type operation */
stretch_copybit(struct copybit_device_t * dev,struct copybit_image_t const * dst,struct copybit_image_t const * src,struct copybit_rect_t const * dst_rect,struct copybit_rect_t const * src_rect,struct copybit_region_t const * region)439 static int stretch_copybit(
440     struct copybit_device_t *dev,
441     struct copybit_image_t const *dst,
442     struct copybit_image_t const *src,
443     struct copybit_rect_t const *dst_rect,
444     struct copybit_rect_t const *src_rect,
445     struct copybit_region_t const *region)
446 {
447     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
448     struct blitReq *list;
449     int status = 0;
450     private_handle_t *yv12_handle = NULL;
451 
452     if (ctx) {
453         list = &ctx->list;
454 
455         if (ctx->mAlpha < 255) {
456             switch (src->format) {
457                 // we don't support plane alpha with RGBA formats
458                 case HAL_PIXEL_FORMAT_RGBA_8888:
459                 case HAL_PIXEL_FORMAT_BGRA_8888:
460                 case HAL_PIXEL_FORMAT_RGBA_5551:
461                 case HAL_PIXEL_FORMAT_RGBA_4444:
462                     ALOGE ("%s : Unsupported Pixel format %d", __FUNCTION__,
463                            src->format);
464                     return -EINVAL;
465             }
466         }
467 
468         if (src_rect->l < 0 || (uint32_t)src_rect->r > src->w ||
469             src_rect->t < 0 || (uint32_t)src_rect->b > src->h) {
470             // this is always invalid
471             ALOGE ("%s : Invalid source rectangle : src_rect l %d t %d r %d b %d",\
472                    __FUNCTION__, src_rect->l, src_rect->t, src_rect->r, src_rect->b);
473 
474             return -EINVAL;
475         }
476 
477         if (src->w > MAX_DIMENSION || src->h > MAX_DIMENSION) {
478             ALOGE ("%s : Invalid source dimensions w %d h %d", __FUNCTION__, src->w, src->h);
479             return -EINVAL;
480         }
481 
482         if (dst->w > MAX_DIMENSION || dst->h > MAX_DIMENSION) {
483             ALOGE ("%s : Invalid DST dimensions w %d h %d", __FUNCTION__, dst->w, dst->h);
484             return -EINVAL;
485         }
486 
487         if(src->format ==  HAL_PIXEL_FORMAT_YV12) {
488             int usage =
489             GRALLOC_USAGE_PRIVATE_IOMMU_HEAP | GRALLOC_USAGE_PRIVATE_UNCACHED;
490             if (0 == alloc_buffer(&yv12_handle,src->w,src->h,
491                                   src->format, usage)){
492                 if(0 == convertYV12toYCrCb420SP(src,yv12_handle)){
493                     (const_cast<copybit_image_t *>(src))->format =
494                         HAL_PIXEL_FORMAT_YCrCb_420_SP;
495                     (const_cast<copybit_image_t *>(src))->handle =
496                         yv12_handle;
497                     (const_cast<copybit_image_t *>(src))->base =
498                         (void *)yv12_handle->base;
499                 }
500                 else{
501                     ALOGE("Error copybit conversion from yv12 failed");
502                     if(yv12_handle)
503                         free_buffer(yv12_handle);
504                     return -EINVAL;
505                 }
506             }
507             else{
508                 ALOGE("Error:unable to allocate memeory for yv12 software conversion");
509                 return -EINVAL;
510             }
511         }
512         const uint32_t maxCount =
513                 (uint32_t)(sizeof(list->req)/sizeof(list->req[0]));
514         const struct copybit_rect_t bounds = { 0, 0, (int)dst->w, (int)dst->h };
515         struct copybit_rect_t clip;
516         status = 0;
517         while ((status == 0) && region->next(region, &clip)) {
518             intersect(&clip, &bounds, &clip);
519             mdp_blit_req* req = &list->req[list->count];
520             int flags = 0;
521 
522             private_handle_t* src_hnd = (private_handle_t*)src->handle;
523             if(src_hnd != NULL &&
524                 (!(src_hnd->flags & private_handle_t::PRIV_FLAGS_CACHED))) {
525                 flags |=  MDP_BLIT_NON_CACHED;
526             }
527 
528             // Set Color Space for MDP to configure CSC matrix
529             req->color_space = ITU_R_601;
530             MetaData_t *metadata = NULL;
531 
532             if (src_hnd != NULL)
533                 metadata = (MetaData_t *)src_hnd->base_metadata;
534 
535             if (metadata && (metadata->operation & UPDATE_COLOR_SPACE)) {
536                 req->color_space = metadata->colorSpace;
537             }
538 
539             set_infos(ctx, req, flags);
540             set_image(&req->dst, dst);
541             set_image(&req->src, src);
542             if (set_rects(ctx, req, dst_rect, src_rect, &clip) == false)
543                 continue;
544 
545             if (req->src_rect.w<=0 || req->src_rect.h<=0)
546                 continue;
547 
548             if (req->dst_rect.w<=0 || req->dst_rect.h<=0)
549                 continue;
550 
551             if (++list->count == maxCount) {
552                 status = msm_copybit(ctx, list);
553                 list->sync.acq_fen_fd_cnt = 0;
554                 list->count = 0;
555             }
556         }
557         if(yv12_handle) {
558             //Before freeing the buffer we need buffer passed through blit call
559             if (list->count != 0) {
560                 status = msm_copybit(ctx, list);
561                 list->sync.acq_fen_fd_cnt = 0;
562                 list->count = 0;
563             }
564             free_buffer(yv12_handle);
565         }
566     } else {
567         ALOGE ("%s : Invalid COPYBIT context", __FUNCTION__);
568         status = -EINVAL;
569     }
570     return status;
571 }
572 
573 /** Perform a blit type operation */
blit_copybit(struct copybit_device_t * dev,struct copybit_image_t const * dst,struct copybit_image_t const * src,struct copybit_region_t const * region)574 static int blit_copybit(
575     struct copybit_device_t *dev,
576     struct copybit_image_t const *dst,
577     struct copybit_image_t const *src,
578     struct copybit_region_t const *region)
579 {
580     struct copybit_rect_t dr = { 0, 0, (int)dst->w, (int)dst->h };
581     struct copybit_rect_t sr = { 0, 0, (int)src->w, (int)src->h };
582     return stretch_copybit(dev, dst, src, &dr, &sr, region);
583 }
584 
finish_copybit(struct copybit_device_t * dev)585 static int finish_copybit(struct copybit_device_t *dev)
586 {
587     // NOP for MDP copybit
588     if(!dev)
589        return -EINVAL;
590 
591     return 0;
592 }
clear_copybit(struct copybit_device_t * dev,struct copybit_image_t const * buf,struct copybit_rect_t * rect)593 static int clear_copybit(struct copybit_device_t *dev,
594                          struct copybit_image_t const *buf,
595                          struct copybit_rect_t *rect)
596 {
597     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
598     uint32_t color = 0; // black color
599 
600     if (!ctx) {
601         ALOGE ("%s: Invalid copybit context", __FUNCTION__);
602         return -EINVAL;
603     }
604 
605     struct blitReq list1;
606     memset((char *)&list1 , 0 ,sizeof (struct blitReq) );
607     list1.count = 1;
608     int my_tmp_get_fence = -1;
609 
610     list1.sync.acq_fen_fd  =  ctx->acqFence;
611     list1.sync.rel_fen_fd  =  &my_tmp_get_fence;
612     list1.sync.acq_fen_fd_cnt = ctx->list.sync.acq_fen_fd_cnt;
613     mdp_blit_req* req = &list1.req[0];
614 
615     if(!req) {
616         ALOGE ("%s : Invalid request", __FUNCTION__);
617         return -EINVAL;
618     }
619 
620     set_image(&req->dst, buf);
621     set_image(&req->src, buf);
622 
623     if (rect->l < 0 || (uint32_t)(rect->r - rect->l) > req->dst.width ||
624        rect->t < 0 || (uint32_t)(rect->b - rect->t) > req->dst.height) {
625        ALOGE ("%s : Invalid rect : src_rect l %d t %d r %d b %d",\
626        __FUNCTION__, rect->l, rect->t, rect->r, rect->b);
627        return -EINVAL;
628     }
629 
630     req->dst_rect.x  = rect->l;
631     req->dst_rect.y  = rect->t;
632     req->dst_rect.w  = rect->r - rect->l;
633     req->dst_rect.h  = rect->b - rect->t;
634 
635     req->src_rect = req->dst_rect;
636 
637     req->const_color.b = (uint32_t)((color >> 16) & 0xff);
638     req->const_color.g = (uint32_t)((color >> 8) & 0xff);
639     req->const_color.r = (uint32_t)((color >> 0) & 0xff);
640     req->const_color.alpha = MDP_ALPHA_NOP;
641 
642     req->transp_mask = MDP_TRANSP_NOP;
643     req->flags = MDP_SOLID_FILL | MDP_MEMORY_ID_TYPE_FB | MDP_BLEND_FG_PREMULT;
644     int status = msm_copybit(ctx, &list1);
645 
646     ctx->list.sync.acq_fen_fd_cnt = 0;
647     if (my_tmp_get_fence !=  -1)
648         close(my_tmp_get_fence);
649 
650     return status;
651 }
652 
653 /** Fill the rect on dst with RGBA color **/
fill_color(struct copybit_device_t * dev,struct copybit_image_t const * dst,struct copybit_rect_t const * rect,uint32_t color)654 static int fill_color(struct copybit_device_t *dev,
655                       struct copybit_image_t const *dst,
656                       struct copybit_rect_t const *rect,
657                       uint32_t color)
658 {
659     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
660     if (!ctx) {
661         ALOGE("%s: Invalid copybit context", __FUNCTION__);
662         return -EINVAL;
663     }
664 
665     if (dst->w > MAX_DIMENSION || dst->h > MAX_DIMENSION) {
666         ALOGE("%s: Invalid DST w=%d h=%d", __FUNCTION__, dst->w, dst->h);
667         return -EINVAL;
668     }
669 
670     if (rect->l < 0 || (uint32_t)(rect->r - rect->l) > dst->w ||
671         rect->t < 0 || (uint32_t)(rect->b - rect->t) > dst->h) {
672         ALOGE("%s: Invalid destination rect: l=%d t=%d r=%d b=%d",
673                 __FUNCTION__, rect->l, rect->t, rect->r, rect->b);
674         return -EINVAL;
675     }
676 
677     int status = 0;
678     struct blitReq* list = &ctx->list;
679     mdp_blit_req* req = &list->req[list->count++];
680     set_infos(ctx, req, MDP_SOLID_FILL);
681     set_image(&req->src, dst);
682     set_image(&req->dst, dst);
683 
684     req->dst_rect.x = rect->l;
685     req->dst_rect.y = rect->t;
686     req->dst_rect.w = rect->r - rect->l;
687     req->dst_rect.h = rect->b - rect->t;
688     req->src_rect = req->dst_rect;
689 
690     req->const_color.r = (uint32_t)((color >> 0) & 0xff);
691     req->const_color.g = (uint32_t)((color >> 8) & 0xff);
692     req->const_color.b = (uint32_t)((color >> 16) & 0xff);
693     req->const_color.alpha = (uint32_t)((color >> 24) & 0xff);
694 
695     if (list->count == sizeof(list->req)/sizeof(list->req[0])) {
696         status = msm_copybit(ctx, list);
697         list->sync.acq_fen_fd_cnt = 0;
698         list->count = 0;
699     }
700     return status;
701 }
702 
703 /*****************************************************************************/
704 
705 /** Close the copybit device */
close_copybit(struct hw_device_t * dev)706 static int close_copybit(struct hw_device_t *dev)
707 {
708     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
709     if (ctx) {
710         close(ctx->mFD);
711         free(ctx);
712     }
713     return 0;
714 }
715 
flush_get_fence(struct copybit_device_t * dev,int * fd)716 static int flush_get_fence(struct copybit_device_t *dev, int* fd)
717 {
718     struct copybit_context_t* ctx = (struct copybit_context_t*)dev;
719     struct blitReq *list = &ctx->list;
720     int ret = -EINVAL;
721 
722     if (list->count) {
723         ret = msm_copybit(ctx, list);
724         if (ret < 0)
725             ALOGE("%s: Blit call failed", __FUNCTION__);
726         list->count = 0;
727     }
728     *fd = ctx->relFence;
729     list->sync.acq_fen_fd_cnt = 0;
730     ctx->relFence = -1;
731     return ret;
732 }
733 
734 /** Open a new instance of a copybit device using name */
open_copybit(const struct hw_module_t * module,const char * name,struct hw_device_t ** device)735 static int open_copybit(const struct hw_module_t* module, const char* name,
736                         struct hw_device_t** device)
737 {
738     int status = -EINVAL;
739 
740     if (strcmp(name, COPYBIT_HARDWARE_COPYBIT0)) {
741         return COPYBIT_FAILURE;
742     }
743     copybit_context_t *ctx;
744     ctx = (copybit_context_t *)malloc(sizeof(copybit_context_t));
745 
746     if (ctx == NULL ) {
747        return COPYBIT_FAILURE;
748     }
749 
750     memset(ctx, 0, sizeof(*ctx));
751 
752     ctx->device.common.tag = HARDWARE_DEVICE_TAG;
753     ctx->device.common.version = 1;
754     ctx->device.common.module = const_cast<hw_module_t*>(module);
755     ctx->device.common.close = close_copybit;
756     ctx->device.set_parameter = set_parameter_copybit;
757     ctx->device.get = get;
758     ctx->device.blit = blit_copybit;
759     ctx->device.set_sync = set_sync_copybit;
760     ctx->device.stretch = stretch_copybit;
761     ctx->device.finish = finish_copybit;
762     ctx->device.fill_color = fill_color;
763     ctx->device.flush_get_fence = flush_get_fence;
764     ctx->device.clear = clear_copybit;
765     ctx->mAlpha = MDP_ALPHA_NOP;
766     //dynamic_fps is zero means default
767     //panel refresh rate for driver.
768     ctx->dynamic_fps = 0;
769     ctx->mFlags = 0;
770     ctx->sync.flags = 0;
771     ctx->relFence = -1;
772     for (int i=0; i < MDP_MAX_FENCE_FD; i++) {
773         ctx->acqFence[i] = -1;
774     }
775     ctx->sync.acq_fen_fd = ctx->acqFence;
776     ctx->sync.rel_fen_fd = &ctx->relFence;
777     ctx->list.count = 0;
778     ctx->list.sync.acq_fen_fd_cnt = 0;
779     ctx->list.sync.rel_fen_fd = ctx->sync.rel_fen_fd;
780     ctx->list.sync.acq_fen_fd = ctx->sync.acq_fen_fd;
781     ctx->mFD = open("/dev/graphics/fb0", O_RDWR, 0);
782     if (ctx->mFD < 0) {
783         status = errno;
784         ALOGE("Error opening frame buffer errno=%d (%s)",
785               status, strerror(status));
786         status = -status;
787     } else {
788         status = 0;
789         *device = &ctx->device.common;
790     }
791     return status;
792 }
793