Home | History | Annotate | Download | only in libhwcomposer
      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  * Copyright (C) 2012-2014, The Linux Foundation. All rights reserved.
      4  *
      5  * Not a Contribution.
      6  *
      7  * Licensed under the Apache License, Version 2.0 (the "License");
      8  * you may not use this file except in compliance with the License.
      9  * You may obtain a copy of the License at
     10  *
     11  *      http://www.apache.org/licenses/LICENSE-2.0
     12  *
     13  * Unless required by applicable law or agreed to in writing, software
     14  * distributed under the License is distributed on an "AS IS" BASIS,
     15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     16  * See the License for the specific language governing permissions and
     17  * limitations under the License.
     18  */
     19 
     20 #define DEBUG_COPYBIT 0
     21 #include <copybit.h>
     22 #include <utils/Timers.h>
     23 #include <mdp_version.h>
     24 #include "hwc_copybit.h"
     25 #include "comptype.h"
     26 #include "gr.h"
     27 #include "cb_utils.h"
     28 #include "cb_swap_rect.h"
     29 #include "math.h"
     30 #include "sync/sync.h"
     31 
     32 using namespace qdutils;
     33 namespace qhwc {
     34 
     35 struct range {
     36     int current;
     37     int end;
     38 };
     39 struct region_iterator : public copybit_region_t {
     40 
     41     region_iterator(hwc_region_t region) {
     42         mRegion = region;
     43         r.end = (int)region.numRects;
     44         r.current = 0;
     45         this->next = iterate;
     46     }
     47 
     48 private:
     49     static int iterate(copybit_region_t const * self, copybit_rect_t* rect){
     50         if (!self || !rect) {
     51             ALOGE("iterate invalid parameters");
     52             return 0;
     53         }
     54 
     55         region_iterator const* me =
     56                                   static_cast<region_iterator const*>(self);
     57         if (me->r.current != me->r.end) {
     58             rect->l = me->mRegion.rects[me->r.current].left;
     59             rect->t = me->mRegion.rects[me->r.current].top;
     60             rect->r = me->mRegion.rects[me->r.current].right;
     61             rect->b = me->mRegion.rects[me->r.current].bottom;
     62             me->r.current++;
     63             return 1;
     64         }
     65         return 0;
     66     }
     67 
     68     hwc_region_t mRegion;
     69     mutable range r;
     70 };
     71 
     72 void CopyBit::reset() {
     73     mIsModeOn = false;
     74     mCopyBitDraw = false;
     75 }
     76 
     77 bool CopyBit::canUseCopybitForYUV(hwc_context_t *ctx) {
     78     // return true for non-overlay targets
     79     if(ctx->mMDP.hasOverlay && ctx->mMDP.version >= qdutils::MDP_V4_0) {
     80        return false;
     81     }
     82     return true;
     83 }
     84 
     85 bool CopyBit::canUseCopybitForRGB(hwc_context_t *ctx,
     86                                         hwc_display_contents_1_t *list,
     87                                         int dpy) {
     88     int compositionType = qdutils::QCCompositionType::
     89                                     getInstance().getCompositionType();
     90 
     91     if (compositionType & qdutils::COMPOSITION_TYPE_DYN) {
     92         // DYN Composition:
     93         // use copybit, if (TotalRGBRenderArea < threashold * FB Area)
     94         // this is done based on perf inputs in ICS
     95         // TODO: Above condition needs to be re-evaluated in JB
     96         int fbWidth =  ctx->dpyAttr[dpy].xres;
     97         int fbHeight =  ctx->dpyAttr[dpy].yres;
     98         unsigned int fbArea = (fbWidth * fbHeight);
     99         unsigned int renderArea = getRGBRenderingArea(list);
    100             ALOGD_IF (DEBUG_COPYBIT, "%s:renderArea %u, fbArea %u",
    101                                   __FUNCTION__, renderArea, fbArea);
    102         if (renderArea < (mDynThreshold * fbArea)) {
    103             return true;
    104         }
    105     } else if ((compositionType & qdutils::COMPOSITION_TYPE_MDP)) {
    106       // MDP composition, use COPYBIT always
    107       return true;
    108     } else if ((compositionType & qdutils::COMPOSITION_TYPE_C2D)) {
    109       // C2D composition, use COPYBIT
    110       return true;
    111     }
    112     return false;
    113 }
    114 
    115 unsigned int CopyBit::getRGBRenderingArea
    116                                     (const hwc_display_contents_1_t *list) {
    117     //Calculates total rendering area for RGB layers
    118     unsigned int renderArea = 0;
    119     unsigned int w=0, h=0;
    120     // Skipping last layer since FrameBuffer layer should not affect
    121     // which composition to choose
    122     for (unsigned int i=0; i<list->numHwLayers -1; i++) {
    123          private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
    124          if (hnd) {
    125              if (BUFFER_TYPE_UI == hnd->bufferType) {
    126                  getLayerResolution(&list->hwLayers[i], w, h);
    127                  renderArea += (w*h);
    128              }
    129          }
    130     }
    131     return renderArea;
    132 }
    133 
    134 bool CopyBit::prepare(hwc_context_t *ctx, hwc_display_contents_1_t *list,
    135                                                             int dpy) {
    136 
    137     if(mEngine == NULL) {
    138         // No copybit device found - cannot use copybit
    139         return false;
    140     }
    141     int compositionType = qdutils::QCCompositionType::
    142                                     getInstance().getCompositionType();
    143 
    144     if ((compositionType == qdutils::COMPOSITION_TYPE_GPU) ||
    145         (compositionType == qdutils::COMPOSITION_TYPE_CPU))   {
    146         //GPU/CPU composition, don't change layer composition type
    147         return true;
    148     }
    149 
    150     if(!(validateParams(ctx, list))) {
    151         ALOGE("%s:Invalid Params", __FUNCTION__);
    152         return false;
    153     }
    154 
    155     if(ctx->listStats[dpy].skipCount) {
    156         //GPU will be anyways used
    157         return false;
    158     }
    159 
    160     if (ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS) {
    161         // Reached max layers supported by HWC.
    162         return false;
    163     }
    164 
    165     bool useCopybitForYUV = canUseCopybitForYUV(ctx);
    166     bool useCopybitForRGB = canUseCopybitForRGB(ctx, list, dpy);
    167     LayerProp *layerProp = ctx->layerProp[dpy];
    168 
    169     // Following are MDP3 limitations for which we
    170     // need to fallback to GPU composition:
    171     // 1. Plane alpha is not supported by MDP3.
    172     // 2. Scaling is within range
    173     if (qdutils::MDPVersion::getInstance().getMDPVersion() < 400) {
    174         for (int i = ctx->listStats[dpy].numAppLayers-1; i >= 0 ; i--) {
    175             int dst_h, dst_w, src_h, src_w;
    176             float dx, dy;
    177             hwc_layer_1_t *layer = (hwc_layer_1_t *) &list->hwLayers[i];
    178             if (layer->planeAlpha != 0xFF)
    179                 return true;
    180             hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
    181 
    182             if (layer->transform & HAL_TRANSFORM_ROT_90) {
    183                 src_h = sourceCrop.right - sourceCrop.left;
    184                 src_w = sourceCrop.bottom - sourceCrop.top;
    185             } else {
    186                 src_h = sourceCrop.bottom - sourceCrop.top;
    187                 src_w = sourceCrop.right - sourceCrop.left;
    188             }
    189             dst_h = layer->displayFrame.bottom - layer->displayFrame.top;
    190             dst_w = layer->displayFrame.right - layer->displayFrame.left;
    191 
    192             if(src_w <=0 || src_h<=0 ||dst_w<=0 || dst_h<=0 ) {
    193               ALOGE("%s: wrong params for display screen_w=%d \
    194                          src_crop_width=%d screen_h=%d src_crop_height=%d",
    195                          __FUNCTION__, dst_w,src_w,dst_h,src_h);
    196               return false;
    197             }
    198             dx = (float)dst_w/(float)src_w;
    199             dy = (float)dst_h/(float)src_h;
    200 
    201             if (dx > MAX_SCALE_FACTOR || dx < MIN_SCALE_FACTOR)
    202                 return false;
    203 
    204             if (dy > MAX_SCALE_FACTOR || dy < MIN_SCALE_FACTOR)
    205                 return false;
    206         }
    207     }
    208 
    209     //Allocate render buffers if they're not allocated
    210     if (ctx->mMDP.version != qdutils::MDP_V3_0_4 &&
    211             (useCopybitForYUV || useCopybitForRGB)) {
    212         int ret = allocRenderBuffers(mAlignedFBWidth,
    213                                      mAlignedFBHeight,
    214                                      HAL_PIXEL_FORMAT_RGBA_8888);
    215         if (ret < 0) {
    216             return false;
    217         } else {
    218             mCurRenderBufferIndex = (mCurRenderBufferIndex + 1) %
    219                 NUM_RENDER_BUFFERS;
    220         }
    221     }
    222 
    223     // We cannot mix copybit layer with layers marked to be drawn on FB
    224     if (!useCopybitForYUV && ctx->listStats[dpy].yuvCount)
    225         return true;
    226 
    227     mCopyBitDraw = false;
    228     if (useCopybitForRGB &&
    229         (useCopybitForYUV || !ctx->listStats[dpy].yuvCount)) {
    230         mCopyBitDraw =  true;
    231         // numAppLayers-1, as we iterate till 0th layer index
    232         // Mark all layers to be drawn by copybit
    233         for (int i = ctx->listStats[dpy].numAppLayers-1; i >= 0 ; i--) {
    234             layerProp[i].mFlags |= HWC_COPYBIT;
    235 #ifdef QCOM_BSP
    236             if (ctx->mMDP.version == qdutils::MDP_V3_0_4)
    237                 list->hwLayers[i].compositionType = HWC_BLIT;
    238             else
    239 #endif
    240                 list->hwLayers[i].compositionType = HWC_OVERLAY;
    241         }
    242     }
    243 
    244     return true;
    245 }
    246 
    247 int CopyBit::clear (private_handle_t* hnd, hwc_rect_t& rect)
    248 {
    249     int ret = 0;
    250     copybit_rect_t clear_rect = {rect.left, rect.top,
    251         rect.right,
    252         rect.bottom};
    253 
    254     copybit_image_t buf;
    255     buf.w = ALIGN(getWidth(hnd),32);
    256     buf.h = getHeight(hnd);
    257     buf.format = hnd->format;
    258     buf.base = (void *)hnd->base;
    259     buf.handle = (native_handle_t *)hnd;
    260 
    261     copybit_device_t *copybit = mEngine;
    262     ret = copybit->clear(copybit, &buf, &clear_rect);
    263     return ret;
    264 }
    265 
    266 bool CopyBit::draw(hwc_context_t *ctx, hwc_display_contents_1_t *list,
    267                                                         int dpy, int32_t *fd) {
    268     // draw layers marked for COPYBIT
    269     int retVal = true;
    270     int copybitLayerCount = 0;
    271     uint32_t last = 0;
    272     LayerProp *layerProp = ctx->layerProp[dpy];
    273     private_handle_t *renderBuffer;
    274 
    275     if(mCopyBitDraw == false) // there is no layer marked for copybit
    276         return false ;
    277 
    278     //render buffer
    279     if (ctx->mMDP.version == qdutils::MDP_V3_0_4) {
    280         last = (uint32_t)list->numHwLayers - 1;
    281         renderBuffer = (private_handle_t *)list->hwLayers[last].handle;
    282     } else {
    283         renderBuffer = getCurrentRenderBuffer();
    284     }
    285     if (!renderBuffer) {
    286         ALOGE("%s: Render buffer layer handle is NULL", __FUNCTION__);
    287         return false;
    288     }
    289 
    290     if (ctx->mMDP.version >= qdutils::MDP_V4_0) {
    291         //Wait for the previous frame to complete before rendering onto it
    292         if(mRelFd[mCurRenderBufferIndex] >=0) {
    293             sync_wait(mRelFd[mCurRenderBufferIndex], 1000);
    294             close(mRelFd[mCurRenderBufferIndex]);
    295             mRelFd[mCurRenderBufferIndex] = -1;
    296         }
    297     } else {
    298         if(list->hwLayers[last].acquireFenceFd >=0) {
    299             copybit_device_t *copybit = getCopyBitDevice();
    300             copybit->set_sync(copybit, list->hwLayers[last].acquireFenceFd);
    301         }
    302     }
    303 
    304     //Clear the transparent or left out region on the render buffer
    305     hwc_rect_t clearRegion = {0,0,0,0};
    306     if(CBUtils::getuiClearRegion(list, clearRegion, layerProp))
    307         clear(renderBuffer, clearRegion);
    308 
    309     // numAppLayers-1, as we iterate from 0th layer index with HWC_COPYBIT flag
    310     for (int i = 0; i <= (ctx->listStats[dpy].numAppLayers-1); i++) {
    311         hwc_layer_1_t *layer = &list->hwLayers[i];
    312         if(!(layerProp[i].mFlags & HWC_COPYBIT)) {
    313             ALOGD_IF(DEBUG_COPYBIT, "%s: Not Marked for copybit", __FUNCTION__);
    314             continue;
    315         }
    316         if(layer->flags & HWC_SKIP_HWC_COMPOSITION){
    317             continue;
    318         }
    319         int ret = -1;
    320         if (list->hwLayers[i].acquireFenceFd != -1
    321                 && ctx->mMDP.version >= qdutils::MDP_V4_0) {
    322             // Wait for acquire Fence on the App buffers.
    323             ret = sync_wait(list->hwLayers[i].acquireFenceFd, 1000);
    324             if(ret < 0) {
    325                 ALOGE("%s: sync_wait error!! error no = %d err str = %s",
    326                                     __FUNCTION__, errno, strerror(errno));
    327             }
    328             close(list->hwLayers[i].acquireFenceFd);
    329             list->hwLayers[i].acquireFenceFd = -1;
    330         }
    331         retVal = drawLayerUsingCopybit(ctx, &(list->hwLayers[i]),
    332                                                     renderBuffer, !i);
    333         copybitLayerCount++;
    334         if(retVal < 0) {
    335             ALOGE("%s : drawLayerUsingCopybit failed", __FUNCTION__);
    336         }
    337     }
    338 
    339     if (copybitLayerCount) {
    340         copybit_device_t *copybit = getCopyBitDevice();
    341         // Async mode
    342         copybit->flush_get_fence(copybit, fd);
    343         if(ctx->mMDP.version == qdutils::MDP_V3_0_4 &&
    344                 list->hwLayers[last].acquireFenceFd >= 0) {
    345             close(list->hwLayers[last].acquireFenceFd);
    346             list->hwLayers[last].acquireFenceFd = -1;
    347         }
    348     }
    349     return true;
    350 }
    351 
    352 int  CopyBit::drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer,
    353                           private_handle_t *renderBuffer, bool isFG)
    354 {
    355     hwc_context_t* ctx = (hwc_context_t*)(dev);
    356     int err = 0, acquireFd;
    357     if(!ctx) {
    358          ALOGE("%s: null context ", __FUNCTION__);
    359          return -1;
    360     }
    361 
    362     private_handle_t *hnd = (private_handle_t *)layer->handle;
    363     if(!hnd) {
    364         if (layer->flags & HWC_COLOR_FILL) { // Color layer
    365             return fillColorUsingCopybit(layer, renderBuffer);
    366         }
    367         ALOGE("%s: invalid handle", __FUNCTION__);
    368         return -1;
    369     }
    370 
    371     private_handle_t *fbHandle = (private_handle_t *)renderBuffer;
    372     if(!fbHandle) {
    373         ALOGE("%s: Framebuffer handle is NULL", __FUNCTION__);
    374         return -1;
    375     }
    376 
    377     // Set the copybit source:
    378     copybit_image_t src;
    379     src.w = getWidth(hnd);
    380     src.h = getHeight(hnd);
    381     src.format = hnd->format;
    382 
    383     // Handle R/B swap
    384     if ((layer->flags & HWC_FORMAT_RB_SWAP)) {
    385         if (src.format == HAL_PIXEL_FORMAT_RGBA_8888) {
    386             src.format = HAL_PIXEL_FORMAT_BGRA_8888;
    387         } else if (src.format == HAL_PIXEL_FORMAT_RGBX_8888) {
    388             src.format = HAL_PIXEL_FORMAT_BGRX_8888;
    389         }
    390     }
    391 
    392     src.base = (void *)hnd->base;
    393     src.handle = (native_handle_t *)layer->handle;
    394     src.horiz_padding = src.w - getWidth(hnd);
    395     // Initialize vertical padding to zero for now,
    396     // this needs to change to accomodate vertical stride
    397     // if needed in the future
    398     src.vert_padding = 0;
    399 
    400     int layerTransform = layer->transform ;
    401     // When flip and rotation(90) are present alter the flip,
    402     // as GPU is doing the flip and rotation in opposite order
    403     // to that of MDP3.0
    404     // For 270 degrees, we get 90 + (H+V) which is same as doing
    405     // flip first and then rotation (H+V) + 90
    406     if (qdutils::MDPVersion::getInstance().getMDPVersion() < 400) {
    407                 if (((layer->transform& HAL_TRANSFORM_FLIP_H) ||
    408                 (layer->transform & HAL_TRANSFORM_FLIP_V)) &&
    409                 (layer->transform &  HAL_TRANSFORM_ROT_90) &&
    410                 !(layer->transform ==  HAL_TRANSFORM_ROT_270)){
    411                       if(layer->transform & HAL_TRANSFORM_FLIP_H){
    412                                  layerTransform ^= HAL_TRANSFORM_FLIP_H;
    413                                  layerTransform |= HAL_TRANSFORM_FLIP_V;
    414                       }
    415                       if(layer->transform & HAL_TRANSFORM_FLIP_V){
    416                                  layerTransform ^= HAL_TRANSFORM_FLIP_V;
    417                                  layerTransform |= HAL_TRANSFORM_FLIP_H;
    418                       }
    419                }
    420     }
    421     // Copybit source rect
    422     hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
    423     copybit_rect_t srcRect = {sourceCrop.left, sourceCrop.top,
    424                               sourceCrop.right,
    425                               sourceCrop.bottom};
    426 
    427     // Copybit destination rect
    428     hwc_rect_t displayFrame = layer->displayFrame;
    429     copybit_rect_t dstRect = {displayFrame.left, displayFrame.top,
    430                               displayFrame.right,
    431                               displayFrame.bottom};
    432 
    433     // Copybit dst
    434     copybit_image_t dst;
    435     dst.w = ALIGN(fbHandle->width,32);
    436     dst.h = fbHandle->height;
    437     dst.format = fbHandle->format;
    438     dst.base = (void *)fbHandle->base;
    439     dst.handle = (native_handle_t *)fbHandle;
    440 
    441     copybit_device_t *copybit = mEngine;
    442 
    443     int32_t screen_w        = displayFrame.right - displayFrame.left;
    444     int32_t screen_h        = displayFrame.bottom - displayFrame.top;
    445     int32_t src_crop_width  = sourceCrop.right - sourceCrop.left;
    446     int32_t src_crop_height = sourceCrop.bottom -sourceCrop.top;
    447 
    448     // Copybit dst
    449     float copybitsMaxScale =
    450                       (float)copybit->get(copybit,COPYBIT_MAGNIFICATION_LIMIT);
    451     float copybitsMinScale =
    452                        (float)copybit->get(copybit,COPYBIT_MINIFICATION_LIMIT);
    453 
    454     if (layer->transform & HWC_TRANSFORM_ROT_90) {
    455         //swap screen width and height
    456         int tmp = screen_w;
    457         screen_w  = screen_h;
    458         screen_h = tmp;
    459     }
    460     private_handle_t *tmpHnd = NULL;
    461 
    462     if(screen_w <=0 || screen_h<=0 ||src_crop_width<=0 || src_crop_height<=0 ) {
    463         ALOGE("%s: wrong params for display screen_w=%d src_crop_width=%d \
    464         screen_h=%d src_crop_height=%d", __FUNCTION__, screen_w,
    465                                 src_crop_width,screen_h,src_crop_height);
    466         return -1;
    467     }
    468 
    469     float dsdx = (float)screen_w/(float)src_crop_width;
    470     float dtdy = (float)screen_h/(float)src_crop_height;
    471 
    472     float scaleLimitMax = copybitsMaxScale * copybitsMaxScale;
    473     float scaleLimitMin = copybitsMinScale * copybitsMinScale;
    474     if(dsdx > scaleLimitMax ||
    475         dtdy > scaleLimitMax ||
    476         dsdx < 1/scaleLimitMin ||
    477         dtdy < 1/scaleLimitMin) {
    478         ALOGW("%s: greater than max supported size dsdx=%f dtdy=%f \
    479               scaleLimitMax=%f scaleLimitMin=%f", __FUNCTION__,dsdx,dtdy,
    480                                           scaleLimitMax,1/scaleLimitMin);
    481         return -1;
    482     }
    483     acquireFd = layer->acquireFenceFd;
    484     if(dsdx > copybitsMaxScale ||
    485         dtdy > copybitsMaxScale ||
    486         dsdx < 1/copybitsMinScale ||
    487         dtdy < 1/copybitsMinScale){
    488         // The requested scale is out of the range the hardware
    489         // can support.
    490        ALOGD("%s:%d::Need to scale twice dsdx=%f, dtdy=%f,copybitsMaxScale=%f,\
    491                                  copybitsMinScale=%f,screen_w=%d,screen_h=%d \
    492                   src_crop_width=%d src_crop_height=%d",__FUNCTION__,__LINE__,
    493               dsdx,dtdy,copybitsMaxScale,1/copybitsMinScale,screen_w,screen_h,
    494                                               src_crop_width,src_crop_height);
    495 
    496 
    497        int tmp_w =  src_crop_width;
    498        int tmp_h =  src_crop_height;
    499 
    500        if (dsdx > copybitsMaxScale || dtdy > copybitsMaxScale ){
    501          tmp_w = (int)((float)src_crop_width*copybitsMaxScale);
    502          tmp_h = (int)((float)src_crop_height*copybitsMaxScale);
    503        }else if (dsdx < 1/copybitsMinScale ||dtdy < 1/copybitsMinScale ){
    504          // ceil the tmp_w and tmp_h value to maintain proper ratio
    505          // b/w src and dst (should not cross the desired scale limit
    506          // due to float -> int )
    507          tmp_w = (int)ceil((float)src_crop_width/copybitsMinScale);
    508          tmp_h = (int)ceil((float)src_crop_height/copybitsMinScale);
    509        }
    510        ALOGD("%s:%d::tmp_w = %d,tmp_h = %d",__FUNCTION__,__LINE__,tmp_w,tmp_h);
    511 
    512        int usage = GRALLOC_USAGE_PRIVATE_IOMMU_HEAP;
    513        int format = fbHandle->format;
    514 
    515        // We do not want copybit to generate alpha values from nothing
    516        if (format == HAL_PIXEL_FORMAT_RGBA_8888 &&
    517                src.format != HAL_PIXEL_FORMAT_RGBA_8888) {
    518            format = HAL_PIXEL_FORMAT_RGBX_8888;
    519        }
    520        if (0 == alloc_buffer(&tmpHnd, tmp_w, tmp_h, format, usage) && tmpHnd) {
    521             copybit_image_t tmp_dst;
    522             copybit_rect_t tmp_rect;
    523             tmp_dst.w = tmp_w;
    524             tmp_dst.h = tmp_h;
    525             tmp_dst.format = tmpHnd->format;
    526             tmp_dst.handle = tmpHnd;
    527             tmp_dst.horiz_padding = src.horiz_padding;
    528             tmp_dst.vert_padding = src.vert_padding;
    529             tmp_rect.l = 0;
    530             tmp_rect.t = 0;
    531             tmp_rect.r = tmp_dst.w;
    532             tmp_rect.b = tmp_dst.h;
    533             //create one clip region
    534             hwc_rect tmp_hwc_rect = {0,0,tmp_rect.r,tmp_rect.b};
    535             hwc_region_t tmp_hwc_reg = {1,(hwc_rect_t const*)&tmp_hwc_rect};
    536             region_iterator tmp_it(tmp_hwc_reg);
    537             copybit->set_parameter(copybit,COPYBIT_TRANSFORM,0);
    538             //TODO: once, we are able to read layer alpha, update this
    539             copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
    540             copybit->set_sync(copybit, acquireFd);
    541             err = copybit->stretch(copybit,&tmp_dst, &src, &tmp_rect,
    542                                                            &srcRect, &tmp_it);
    543             if(err < 0){
    544                 ALOGE("%s:%d::tmp copybit stretch failed",__FUNCTION__,
    545                                                              __LINE__);
    546                 if(tmpHnd)
    547                     free_buffer(tmpHnd);
    548                 return err;
    549             }
    550             // use release fence as aquire fd for next stretch
    551             if (ctx->mMDP.version < qdutils::MDP_V4_0) {
    552                 copybit->flush_get_fence(copybit, &acquireFd);
    553                 close(acquireFd);
    554                 acquireFd = -1;
    555             }
    556             // copy new src and src rect crop
    557             src = tmp_dst;
    558             srcRect = tmp_rect;
    559       }
    560     }
    561     // Copybit region
    562     hwc_region_t region = layer->visibleRegionScreen;
    563     region_iterator copybitRegion(region);
    564 
    565     copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_WIDTH,
    566                                           renderBuffer->width);
    567     copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_HEIGHT,
    568                                           renderBuffer->height);
    569     copybit->set_parameter(copybit, COPYBIT_TRANSFORM,
    570                                               layerTransform);
    571     //TODO: once, we are able to read layer alpha, update this
    572     copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
    573     copybit->set_parameter(copybit, COPYBIT_BLEND_MODE,
    574                                               layer->blending);
    575     copybit->set_parameter(copybit, COPYBIT_DITHER,
    576                              (dst.format == HAL_PIXEL_FORMAT_RGB_565)?
    577                                              COPYBIT_ENABLE : COPYBIT_DISABLE);
    578     copybit->set_parameter(copybit, COPYBIT_FG_LAYER, isFG ?
    579                                              COPYBIT_ENABLE : COPYBIT_DISABLE);
    580 
    581     copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
    582                                                 COPYBIT_ENABLE);
    583     copybit->set_sync(copybit, acquireFd);
    584     err = copybit->stretch(copybit, &dst, &src, &dstRect, &srcRect,
    585                                                    &copybitRegion);
    586     copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
    587                                                COPYBIT_DISABLE);
    588 
    589     if(tmpHnd) {
    590         if (ctx->mMDP.version < qdutils::MDP_V4_0){
    591             int ret = -1, releaseFd;
    592             // we need to wait for the buffer before freeing
    593             copybit->flush_get_fence(copybit, &releaseFd);
    594             ret = sync_wait(releaseFd, 1000);
    595             if(ret < 0) {
    596                 ALOGE("%s: sync_wait error!! error no = %d err str = %s",
    597                     __FUNCTION__, errno, strerror(errno));
    598             }
    599             close(releaseFd);
    600         }
    601         free_buffer(tmpHnd);
    602     }
    603 
    604     if(err < 0)
    605         ALOGE("%s: copybit stretch failed",__FUNCTION__);
    606     return err;
    607 }
    608 
    609 int CopyBit::fillColorUsingCopybit(hwc_layer_1_t *layer,
    610                           private_handle_t *renderBuffer)
    611 {
    612     if (!renderBuffer) {
    613         ALOGE("%s: Render Buffer is NULL", __FUNCTION__);
    614         return -1;
    615     }
    616 
    617     // Copybit dst
    618     copybit_image_t dst;
    619     dst.w = ALIGN(renderBuffer->width, 32);
    620     dst.h = renderBuffer->height;
    621     dst.format = renderBuffer->format;
    622     dst.base = (void *)renderBuffer->base;
    623     dst.handle = (native_handle_t *)renderBuffer;
    624 
    625     // Copybit dst rect
    626     hwc_rect_t displayFrame = layer->displayFrame;
    627     copybit_rect_t dstRect = {displayFrame.left, displayFrame.top,
    628                               displayFrame.right, displayFrame.bottom};
    629 
    630     uint32_t color = layer->transform;
    631     copybit_device_t *copybit = mEngine;
    632     copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_WIDTH,
    633                            renderBuffer->width);
    634     copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_HEIGHT,
    635                            renderBuffer->height);
    636     copybit->set_parameter(copybit, COPYBIT_DITHER,
    637                            (dst.format == HAL_PIXEL_FORMAT_RGB_565) ?
    638                            COPYBIT_ENABLE : COPYBIT_DISABLE);
    639     copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0);
    640     copybit->set_parameter(copybit, COPYBIT_BLEND_MODE, layer->blending);
    641     copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, layer->planeAlpha);
    642     copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,COPYBIT_ENABLE);
    643     int res = copybit->fill_color(copybit, &dst, &dstRect, color);
    644     copybit->set_parameter(copybit,COPYBIT_BLIT_TO_FRAMEBUFFER,COPYBIT_DISABLE);
    645     return res;
    646 }
    647 
    648 void CopyBit::getLayerResolution(const hwc_layer_1_t* layer,
    649                                  unsigned int& width, unsigned int& height)
    650 {
    651     hwc_rect_t displayFrame  = layer->displayFrame;
    652 
    653     width = displayFrame.right - displayFrame.left;
    654     height = displayFrame.bottom - displayFrame.top;
    655 }
    656 
    657 bool CopyBit::validateParams(hwc_context_t *ctx,
    658                                         const hwc_display_contents_1_t *list) {
    659     //Validate parameters
    660     if (!ctx) {
    661         ALOGE("%s:Invalid HWC context", __FUNCTION__);
    662         return false;
    663     } else if (!list) {
    664         ALOGE("%s:Invalid HWC layer list", __FUNCTION__);
    665         return false;
    666     }
    667     return true;
    668 }
    669 
    670 
    671 int CopyBit::allocRenderBuffers(int w, int h, int f)
    672 {
    673     int ret = 0;
    674     for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
    675         if (mRenderBuffer[i] == NULL) {
    676             ret = alloc_buffer(&mRenderBuffer[i],
    677                                w, h, f,
    678                                GRALLOC_USAGE_PRIVATE_IOMMU_HEAP);
    679         }
    680         if(ret < 0) {
    681             freeRenderBuffers();
    682             break;
    683         }
    684     }
    685     return ret;
    686 }
    687 
    688 void CopyBit::freeRenderBuffers()
    689 {
    690     for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
    691         if(mRenderBuffer[i]) {
    692             //Since we are freeing buffer close the fence if it has a valid one.
    693             if(mRelFd[i] >= 0) {
    694                 close(mRelFd[i]);
    695                 mRelFd[i] = -1;
    696             }
    697             free_buffer(mRenderBuffer[i]);
    698             mRenderBuffer[i] = NULL;
    699         }
    700     }
    701 }
    702 
    703 private_handle_t * CopyBit::getCurrentRenderBuffer() {
    704     return mRenderBuffer[mCurRenderBufferIndex];
    705 }
    706 
    707 void CopyBit::setReleaseFd(int fd) {
    708     if(mRelFd[mCurRenderBufferIndex] >=0)
    709         close(mRelFd[mCurRenderBufferIndex]);
    710     mRelFd[mCurRenderBufferIndex] = dup(fd);
    711 }
    712 
    713 struct copybit_device_t* CopyBit::getCopyBitDevice() {
    714     return mEngine;
    715 }
    716 
    717 CopyBit::CopyBit(hwc_context_t *ctx, const int& dpy) : mIsModeOn(false),
    718         mCopyBitDraw(false), mCurRenderBufferIndex(0) {
    719 
    720     getBufferSizeAndDimensions(ctx->dpyAttr[dpy].xres,
    721             ctx->dpyAttr[dpy].yres,
    722             HAL_PIXEL_FORMAT_RGBA_8888,
    723             mAlignedFBWidth,
    724             mAlignedFBHeight);
    725 
    726     hw_module_t const *module;
    727     for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
    728         mRenderBuffer[i] = NULL;
    729         mRelFd[i] = -1;
    730     }
    731 
    732     char value[PROPERTY_VALUE_MAX];
    733     property_get("debug.hwc.dynThreshold", value, "2");
    734     mDynThreshold = atof(value);
    735 
    736     if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
    737         if(copybit_open(module, &mEngine) < 0) {
    738             ALOGE("FATAL ERROR: copybit open failed.");
    739         }
    740     } else {
    741         ALOGE("FATAL ERROR: copybit hw module not found");
    742     }
    743 }
    744 
    745 CopyBit::~CopyBit()
    746 {
    747     freeRenderBuffers();
    748     if(mEngine)
    749     {
    750         copybit_close(mEngine);
    751         mEngine = NULL;
    752     }
    753 }
    754 }; //namespace qhwc
    755