hwc_utils.cpp revision 456d555b1dc25dd1891ab7e38494d057b6bdf82e
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 * Copyright (C) 2012-2013, 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#define ATRACE_TAG (ATRACE_TAG_GRAPHICS | ATRACE_TAG_HAL)
21#define HWC_UTILS_DEBUG 0
22#include <math.h>
23#include <sys/ioctl.h>
24#include <linux/fb.h>
25#include <binder/IServiceManager.h>
26#include <EGL/egl.h>
27#include <cutils/properties.h>
28#include <utils/Trace.h>
29#include <gralloc_priv.h>
30#include <overlay.h>
31#include <overlayRotator.h>
32#include <overlayWriteback.h>
33#include "hwc_utils.h"
34#include "hwc_mdpcomp.h"
35#include "hwc_fbupdate.h"
36#include "hwc_ad.h"
37#include "mdp_version.h"
38#include "hwc_copybit.h"
39#include "hwc_dump_layers.h"
40#include "hwc_vpuclient.h"
41#include "external.h"
42#include "virtual.h"
43#include "hwc_qclient.h"
44#include "QService.h"
45#include "comptype.h"
46
47using namespace qClient;
48using namespace qService;
49using namespace android;
50using namespace overlay;
51using namespace overlay::utils;
52namespace ovutils = overlay::utils;
53
54namespace qhwc {
55
56static int openFramebufferDevice(hwc_context_t *ctx)
57{
58    struct fb_fix_screeninfo finfo;
59    struct fb_var_screeninfo info;
60
61    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
62    if(fb_fd < 0) {
63        ALOGE("%s: Error Opening FB : %s", __FUNCTION__, strerror(errno));
64        return -errno;
65    }
66
67    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1) {
68        ALOGE("%s:Error in ioctl FBIOGET_VSCREENINFO: %s", __FUNCTION__,
69                                                       strerror(errno));
70        close(fb_fd);
71        return -errno;
72    }
73
74    if (int(info.width) <= 0 || int(info.height) <= 0) {
75        // the driver doesn't return that information
76        // default to 160 dpi
77        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
78        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
79    }
80
81    float xdpi = (info.xres * 25.4f) / info.width;
82    float ydpi = (info.yres * 25.4f) / info.height;
83
84#ifdef MSMFB_METADATA_GET
85    struct msmfb_metadata metadata;
86    memset(&metadata, 0 , sizeof(metadata));
87    metadata.op = metadata_op_frame_rate;
88
89    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
90        ALOGE("%s:Error retrieving panel frame rate: %s", __FUNCTION__,
91                                                      strerror(errno));
92        close(fb_fd);
93        return -errno;
94    }
95
96    float fps  = metadata.data.panel_frame_rate;
97#else
98    //XXX: Remove reserved field usage on all baselines
99    //The reserved[3] field is used to store FPS by the driver.
100    float fps  = info.reserved[3] & 0xFF;
101#endif
102
103    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1) {
104        ALOGE("%s:Error in ioctl FBIOGET_FSCREENINFO: %s", __FUNCTION__,
105                                                       strerror(errno));
106        close(fb_fd);
107        return -errno;
108    }
109
110    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
111    //xres, yres may not be 32 aligned
112    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
113    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
114    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
115    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
116    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
117    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
118
119    //Unblank primary on first boot
120    if(ioctl(fb_fd, FBIOBLANK,FB_BLANK_UNBLANK) < 0) {
121        ALOGE("%s: Failed to unblank display", __FUNCTION__);
122        return -errno;
123    }
124    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isActive = true;
125
126    return 0;
127}
128
129void initContext(hwc_context_t *ctx)
130{
131    openFramebufferDevice(ctx);
132    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
133    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
134    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
135    overlay::Overlay::initOverlay();
136    ctx->mOverlay = overlay::Overlay::getInstance();
137    ctx->mRotMgr = new RotMgr();
138
139    //Is created and destroyed only once for primary
140    //For external it could get created and destroyed multiple times depending
141    //on what external we connect to.
142    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
143        IFBUpdate::getObject(ctx, HWC_DISPLAY_PRIMARY);
144
145    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
146    // decide if we need to open the copybit module.
147    int compositionType =
148        qdutils::QCCompositionType::getInstance().getCompositionType();
149
150    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
151                           qdutils::COMPOSITION_TYPE_MDP |
152                           qdutils::COMPOSITION_TYPE_C2D)) {
153            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit(ctx,
154                    HWC_DISPLAY_PRIMARY);
155    }
156
157    ctx->mExtDisplay = new ExternalDisplay(ctx);
158    ctx->mVirtualDisplay = new VirtualDisplay(ctx);
159    ctx->mVirtualonExtActive = false;
160    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive = false;
161    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].connected = false;
162    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = false;
163    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected = false;
164    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].mDownScaleMode= false;
165    ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].mDownScaleMode = false;
166    ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].mDownScaleMode = false;
167
168    ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
169         MDPComp::getObject(ctx, HWC_DISPLAY_PRIMARY);
170    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].connected = true;
171
172    for (uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
173        ctx->mHwcDebug[i] = new HwcDebug(i);
174        ctx->mLayerRotMap[i] = new LayerRotMap();
175    }
176
177    MDPComp::init(ctx);
178    ctx->mAD = new AssertiveDisplay(ctx);
179
180    ctx->vstate.enable = false;
181    ctx->vstate.fakevsync = false;
182    ctx->mExtOrientation = 0;
183
184    //Right now hwc starts the service but anybody could do it, or it could be
185    //independent process as well.
186    QService::init();
187    sp<IQClient> client = new QClient(ctx);
188    interface_cast<IQService>(
189            defaultServiceManager()->getService(
190            String16("display.qservice")))->connect(client);
191
192    // Initialize "No animation on external display" related  parameters.
193    ctx->deviceOrientation = 0;
194    ctx->mPrevCropVideo.left = ctx->mPrevCropVideo.top =
195        ctx->mPrevCropVideo.right = ctx->mPrevCropVideo.bottom = 0;
196    ctx->mPrevDestVideo.left = ctx->mPrevDestVideo.top =
197        ctx->mPrevDestVideo.right = ctx->mPrevDestVideo.bottom = 0;
198    ctx->mPrevTransformVideo = 0;
199    ctx->mBufferMirrorMode = false;
200#ifdef VPU_TARGET
201    ctx->mVPUClient = new VPUClient();
202#endif
203
204    ALOGI("Initializing Qualcomm Hardware Composer");
205    ALOGI("MDP version: %d", ctx->mMDP.version);
206}
207
208void closeContext(hwc_context_t *ctx)
209{
210    if(ctx->mOverlay) {
211        delete ctx->mOverlay;
212        ctx->mOverlay = NULL;
213    }
214
215    if(ctx->mRotMgr) {
216        delete ctx->mRotMgr;
217        ctx->mRotMgr = NULL;
218    }
219
220    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
221        if(ctx->mCopyBit[i]) {
222            delete ctx->mCopyBit[i];
223            ctx->mCopyBit[i] = NULL;
224        }
225    }
226
227    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
228        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
229        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
230    }
231
232    if(ctx->mExtDisplay) {
233        delete ctx->mExtDisplay;
234        ctx->mExtDisplay = NULL;
235    }
236
237#ifdef VPU_TARGET
238    if(ctx->mVPUClient) {
239        delete ctx->mVPUClient;
240    }
241#endif
242
243    for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
244        if(ctx->mFBUpdate[i]) {
245            delete ctx->mFBUpdate[i];
246            ctx->mFBUpdate[i] = NULL;
247        }
248        if(ctx->mMDPComp[i]) {
249            delete ctx->mMDPComp[i];
250            ctx->mMDPComp[i] = NULL;
251        }
252        if(ctx->mHwcDebug[i]) {
253            delete ctx->mHwcDebug[i];
254            ctx->mHwcDebug[i] = NULL;
255        }
256        if(ctx->mLayerRotMap[i]) {
257            delete ctx->mLayerRotMap[i];
258            ctx->mLayerRotMap[i] = NULL;
259        }
260    }
261    if(ctx->mAD) {
262        delete ctx->mAD;
263        ctx->mAD = NULL;
264    }
265
266
267}
268
269
270void dumpsys_log(android::String8& buf, const char* fmt, ...)
271{
272    va_list varargs;
273    va_start(varargs, fmt);
274    buf.appendFormatV(fmt, varargs);
275    va_end(varargs);
276}
277
278int getExtOrientation(hwc_context_t* ctx) {
279    int extOrient = ctx->mExtOrientation;
280    if(ctx->mBufferMirrorMode)
281        extOrient = getMirrorModeOrientation(ctx);
282    return extOrient;
283}
284
285/* Calculates the destination position based on the action safe rectangle */
286void getActionSafePosition(hwc_context_t *ctx, int dpy, hwc_rect_t& rect) {
287    // Position
288    int x = rect.left, y = rect.top;
289    int w = rect.right - rect.left;
290    int h = rect.bottom - rect.top;
291
292    // if external supports underscan, do nothing
293    // it will be taken care in the driver
294    if(ctx->mExtDisplay->isCEUnderscanSupported())
295        return;
296
297    char value[PROPERTY_VALUE_MAX];
298    // Read action safe properties
299    property_get("persist.sys.actionsafe.width", value, "0");
300    int asWidthRatio = atoi(value);
301    property_get("persist.sys.actionsafe.height", value, "0");
302    int asHeightRatio = atoi(value);
303
304    if(!asWidthRatio && !asHeightRatio) {
305        //No action safe ratio set, return
306        return;
307    }
308
309    float wRatio = 1.0;
310    float hRatio = 1.0;
311    float xRatio = 1.0;
312    float yRatio = 1.0;
313
314    float fbWidth = ctx->dpyAttr[dpy].xres;
315    float fbHeight = ctx->dpyAttr[dpy].yres;
316    if(ctx->dpyAttr[dpy].mDownScaleMode) {
317        // if downscale Mode is enabled for external, need to query
318        // the actual width and height, as that is the physical w & h
319        ctx->mExtDisplay->getAttributes((int&)fbWidth, (int&)fbHeight);
320    }
321
322
323    // Since external is rotated 90, need to swap width/height
324    int extOrient = getExtOrientation(ctx);
325
326    if(extOrient & HWC_TRANSFORM_ROT_90)
327        swap(fbWidth, fbHeight);
328
329    float asX = 0;
330    float asY = 0;
331    float asW = fbWidth;
332    float asH= fbHeight;
333
334    // based on the action safe ratio, get the Action safe rectangle
335    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
336    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
337    asX = (fbWidth - asW) / 2;
338    asY = (fbHeight - asH) / 2;
339
340    // calculate the position ratio
341    xRatio = (float)x/fbWidth;
342    yRatio = (float)y/fbHeight;
343    wRatio = (float)w/fbWidth;
344    hRatio = (float)h/fbHeight;
345
346    //Calculate the position...
347    x = (xRatio * asW) + asX;
348    y = (yRatio * asH) + asY;
349    w = (wRatio * asW);
350    h = (hRatio * asH);
351
352    // Convert it back to hwc_rect_t
353    rect.left = x;
354    rect.top = y;
355    rect.right = w + rect.left;
356    rect.bottom = h + rect.top;
357
358    return;
359}
360
361/* Calculates the aspect ratio for based on src & dest */
362void getAspectRatioPosition(int destWidth, int destHeight, int srcWidth,
363                                int srcHeight, hwc_rect_t& rect) {
364   int x =0, y =0;
365
366   if (srcWidth * destHeight > destWidth * srcHeight) {
367        srcHeight = destWidth * srcHeight / srcWidth;
368        srcWidth = destWidth;
369    } else if (srcWidth * destHeight < destWidth * srcHeight) {
370        srcWidth = destHeight * srcWidth / srcHeight;
371        srcHeight = destHeight;
372    } else {
373        srcWidth = destWidth;
374        srcHeight = destHeight;
375    }
376    if (srcWidth > destWidth) srcWidth = destWidth;
377    if (srcHeight > destHeight) srcHeight = destHeight;
378    x = (destWidth - srcWidth) / 2;
379    y = (destHeight - srcHeight) / 2;
380    ALOGD_IF(HWC_UTILS_DEBUG, "%s: AS Position: x = %d, y = %d w = %d h = %d",
381             __FUNCTION__, x, y, srcWidth , srcHeight);
382    // Convert it back to hwc_rect_t
383    rect.left = x;
384    rect.top = y;
385    rect.right = srcWidth + rect.left;
386    rect.bottom = srcHeight + rect.top;
387}
388
389// This function gets the destination position for Seconday display
390// based on the position and aspect ratio with orientation
391void getAspectRatioPosition(hwc_context_t* ctx, int dpy, int extOrientation,
392                            hwc_rect_t& inRect, hwc_rect_t& outRect) {
393    // Physical display resolution
394    float fbWidth  = ctx->dpyAttr[dpy].xres;
395    float fbHeight = ctx->dpyAttr[dpy].yres;
396    //display position(x,y,w,h) in correct aspectratio after rotation
397    int xPos = 0;
398    int yPos = 0;
399    float width = fbWidth;
400    float height = fbHeight;
401    // Width/Height used for calculation, after rotation
402    float actualWidth = fbWidth;
403    float actualHeight = fbHeight;
404
405    float wRatio = 1.0;
406    float hRatio = 1.0;
407    float xRatio = 1.0;
408    float yRatio = 1.0;
409    hwc_rect_t rect = {0, 0, (int)fbWidth, (int)fbHeight};
410
411    Dim inPos(inRect.left, inRect.top, inRect.right - inRect.left,
412                inRect.bottom - inRect.top);
413    Dim outPos(outRect.left, outRect.top, outRect.right - outRect.left,
414                outRect.bottom - outRect.top);
415
416    Whf whf(fbWidth, fbHeight, 0);
417    eTransform extorient = static_cast<eTransform>(extOrientation);
418    // To calculate the destination co-ordinates in the new orientation
419    preRotateSource(extorient, whf, inPos);
420
421    if(extOrientation & HAL_TRANSFORM_ROT_90) {
422        // Swap width/height for input position
423        swapWidthHeight(actualWidth, actualHeight);
424        getAspectRatioPosition(fbWidth, fbHeight, (int)actualWidth,
425                               (int)actualHeight, rect);
426        xPos = rect.left;
427        yPos = rect.top;
428        width = rect.right - rect.left;
429        height = rect.bottom - rect.top;
430    }
431
432    //Calculate the position...
433    xRatio = inPos.x/actualWidth;
434    yRatio = inPos.y/actualHeight;
435    wRatio = inPos.w/actualWidth;
436    hRatio = inPos.h/actualHeight;
437
438    outPos.x = (xRatio * width) + xPos;
439    outPos.y = (yRatio * height) + yPos;
440    outPos.w = wRatio * width;
441    outPos.h = hRatio * height;
442    ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio Position: x = %d,"
443                 "y = %d w = %d h = %d", __FUNCTION__, outPos.x, outPos.y,
444                 outPos.w, outPos.h);
445
446    // For sidesync, the dest fb will be in portrait orientation, and the crop
447    // will be updated to avoid the black side bands, and it will be upscaled
448    // to fit the dest RB, so recalculate
449    // the position based on the new width and height
450    if ((extOrientation & HWC_TRANSFORM_ROT_90) &&
451                        isOrientationPortrait(ctx)) {
452        hwc_rect_t r;
453        //Calculate the position
454        xRatio = (outPos.x - xPos)/width;
455        // GetaspectRatio -- tricky to get the correct aspect ratio
456        // But we need to do this.
457        getAspectRatioPosition(width, height, width, height, r);
458        xPos = r.left;
459        yPos = r.top;
460        float tempWidth = r.right - r.left;
461        float tempHeight = r.bottom - r.top;
462        yRatio = yPos/height;
463        wRatio = outPos.w/width;
464        hRatio = tempHeight/height;
465
466        //Map the coordinates back to Framebuffer domain
467        outPos.x = (xRatio * fbWidth);
468        outPos.y = (yRatio * fbHeight);
469        outPos.w = wRatio * fbWidth;
470        outPos.h = hRatio * fbHeight;
471
472        ALOGD_IF(HWC_UTILS_DEBUG, "%s: Calculated AspectRatio for device in"
473                 "portrait: x = %d,y = %d w = %d h = %d", __FUNCTION__,
474                 outPos.x, outPos.y,
475                 outPos.w, outPos.h);
476    }
477    if(ctx->dpyAttr[dpy].mDownScaleMode) {
478        int extW, extH;
479        if(dpy == HWC_DISPLAY_EXTERNAL)
480            ctx->mExtDisplay->getAttributes(extW, extH);
481        else
482            ctx->mVirtualDisplay->getAttributes(extW, extH);
483        fbWidth  = ctx->dpyAttr[dpy].xres;
484        fbHeight = ctx->dpyAttr[dpy].yres;
485        //Calculate the position...
486        xRatio = outPos.x/fbWidth;
487        yRatio = outPos.y/fbHeight;
488        wRatio = outPos.w/fbWidth;
489        hRatio = outPos.h/fbHeight;
490
491        outPos.x = xRatio * extW;
492        outPos.y = yRatio * extH;
493        outPos.w = wRatio * extW;
494        outPos.h = hRatio * extH;
495    }
496    // Convert Dim to hwc_rect_t
497    outRect.left = outPos.x;
498    outRect.top = outPos.y;
499    outRect.right = outPos.x + outPos.w;
500    outRect.bottom = outPos.y + outPos.h;
501
502    return;
503}
504
505bool isPrimaryPortrait(hwc_context_t *ctx) {
506    int fbWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
507    int fbHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
508    if(fbWidth < fbHeight) {
509        return true;
510    }
511    return false;
512}
513
514bool isOrientationPortrait(hwc_context_t *ctx) {
515    if(isPrimaryPortrait(ctx)) {
516        return !(ctx->deviceOrientation & 0x1);
517    }
518    return (ctx->deviceOrientation & 0x1);
519}
520
521void calcExtDisplayPosition(hwc_context_t *ctx,
522                               private_handle_t *hnd,
523                               int dpy,
524                               hwc_rect_t& sourceCrop,
525                               hwc_rect_t& displayFrame,
526                               int& transform,
527                               ovutils::eTransform& orient) {
528    // Swap width and height when there is a 90deg transform
529    int extOrient = getExtOrientation(ctx);
530    if(dpy && !qdutils::MDPVersion::getInstance().is8x26()) {
531        if(!isYuvBuffer(hnd)) {
532            if(extOrient & HWC_TRANSFORM_ROT_90) {
533                int dstWidth = ctx->dpyAttr[dpy].xres;
534                int dstHeight = ctx->dpyAttr[dpy].yres;;
535                int srcWidth = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres;
536                int srcHeight = ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres;
537                if(!isPrimaryPortrait(ctx)) {
538                    swap(srcWidth, srcHeight);
539                }                    // Get Aspect Ratio for external
540                getAspectRatioPosition(dstWidth, dstHeight, srcWidth,
541                                    srcHeight, displayFrame);
542                // Crop - this is needed, because for sidesync, the dest fb will
543                // be in portrait orientation, so update the crop to not show the
544                // black side bands.
545                if (isOrientationPortrait(ctx)) {
546                    sourceCrop = displayFrame;
547                    displayFrame.left = 0;
548                    displayFrame.top = 0;
549                    displayFrame.right = dstWidth;
550                    displayFrame.bottom = dstHeight;
551                }
552            }
553            if(ctx->dpyAttr[dpy].mDownScaleMode) {
554                int extW, extH;
555                // if downscale is enabled, map the co-ordinates to new
556                // domain(downscaled)
557                float fbWidth  = ctx->dpyAttr[dpy].xres;
558                float fbHeight = ctx->dpyAttr[dpy].yres;
559                // query MDP configured attributes
560                if(dpy == HWC_DISPLAY_EXTERNAL)
561                    ctx->mExtDisplay->getAttributes(extW, extH);
562                else
563                    ctx->mVirtualDisplay->getAttributes(extW, extH);
564                //Calculate the ratio...
565                float wRatio = ((float)extW)/fbWidth;
566                float hRatio = ((float)extH)/fbHeight;
567
568                //convert Dim to hwc_rect_t
569                displayFrame.left *= wRatio;
570                displayFrame.top *= hRatio;
571                displayFrame.right *= wRatio;
572                displayFrame.bottom *= hRatio;
573            }
574        }else {
575            if(extOrient || ctx->dpyAttr[dpy].mDownScaleMode) {
576                getAspectRatioPosition(ctx, dpy, extOrient,
577                                       displayFrame, displayFrame);
578            }
579        }
580        // If there is a external orientation set, use that
581        if(extOrient) {
582            transform = extOrient;
583            orient = static_cast<ovutils::eTransform >(extOrient);
584        }
585        // Calculate the actionsafe dimensions for External(dpy = 1 or 2)
586        getActionSafePosition(ctx, dpy, displayFrame);
587    }
588}
589
590/* Returns the orientation which needs to be set on External for
591 *  SideSync/Buffer Mirrormode
592 */
593int getMirrorModeOrientation(hwc_context_t *ctx) {
594    int extOrientation = 0;
595    int deviceOrientation = ctx->deviceOrientation;
596    if(!isPrimaryPortrait(ctx))
597        deviceOrientation = (deviceOrientation + 1) % 4;
598     if (deviceOrientation == 0)
599         extOrientation = HWC_TRANSFORM_ROT_270;
600     else if (deviceOrientation == 1)//90
601         extOrientation = 0;
602     else if (deviceOrientation == 2)//180
603         extOrientation = HWC_TRANSFORM_ROT_90;
604     else if (deviceOrientation == 3)//270
605         extOrientation = HWC_TRANSFORM_FLIP_V | HWC_TRANSFORM_FLIP_H;
606
607    return extOrientation;
608}
609
610bool needsScaling(hwc_context_t* ctx, hwc_layer_1_t const* layer,
611        const int& dpy) {
612    int dst_w, dst_h, src_w, src_h;
613
614    hwc_rect_t displayFrame  = layer->displayFrame;
615    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
616
617    dst_w = displayFrame.right - displayFrame.left;
618    dst_h = displayFrame.bottom - displayFrame.top;
619    src_w = sourceCrop.right - sourceCrop.left;
620    src_h = sourceCrop.bottom - sourceCrop.top;
621
622    if(((src_w != dst_w) || (src_h != dst_h)))
623        return true;
624
625    return false;
626}
627
628// Checks if layer needs scaling with split
629bool needsScalingWithSplit(hwc_context_t* ctx, hwc_layer_1_t const* layer,
630        const int& dpy) {
631
632    int src_width_l, src_height_l;
633    int src_width_r, src_height_r;
634    int dst_width_l, dst_height_l;
635    int dst_width_r, dst_height_r;
636    int hw_w = ctx->dpyAttr[dpy].xres;
637    int hw_h = ctx->dpyAttr[dpy].yres;
638    hwc_rect_t cropL, dstL, cropR, dstR;
639    const int lSplit = getLeftSplit(ctx, dpy);
640    hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
641    hwc_rect_t displayFrame  = layer->displayFrame;
642    private_handle_t *hnd = (private_handle_t *)layer->handle;
643
644    cropL = sourceCrop;
645    dstL = displayFrame;
646    hwc_rect_t scissorL = { 0, 0, lSplit, hw_h };
647    qhwc::calculate_crop_rects(cropL, dstL, scissorL, 0);
648
649    cropR = sourceCrop;
650    dstR = displayFrame;
651    hwc_rect_t scissorR = { lSplit, 0, hw_w, hw_h };
652    qhwc::calculate_crop_rects(cropR, dstR, scissorR, 0);
653
654    // Sanitize Crop to stitch
655    sanitizeSourceCrop(cropL, cropR, hnd);
656
657    // Calculate the left dst
658    dst_width_l = dstL.right - dstL.left;
659    dst_height_l = dstL.bottom - dstL.top;
660    src_width_l = cropL.right - cropL.left;
661    src_height_l = cropL.bottom - cropL.top;
662
663    // check if there is any scaling on the left
664    if(((src_width_l != dst_width_l) || (src_height_l != dst_height_l)))
665        return true;
666
667    // Calculate the right dst
668    dst_width_r = dstR.right - dstR.left;
669    dst_height_r = dstR.bottom - dstR.top;
670    src_width_r = cropR.right - cropR.left;
671    src_height_r = cropR.bottom - cropR.top;
672
673    // check if there is any scaling on the right
674    if(((src_width_r != dst_width_r) || (src_height_r != dst_height_r)))
675        return true;
676
677    return false;
678}
679
680bool isAlphaScaled(hwc_context_t* ctx, hwc_layer_1_t const* layer,
681        const int& dpy) {
682    if(needsScaling(ctx, layer, dpy) && isAlphaPresent(layer)) {
683        return true;
684    }
685    return false;
686}
687
688bool isAlphaPresent(hwc_layer_1_t const* layer) {
689    private_handle_t *hnd = (private_handle_t *)layer->handle;
690    if(hnd) {
691        int format = hnd->format;
692        switch(format) {
693        case HAL_PIXEL_FORMAT_RGBA_8888:
694        case HAL_PIXEL_FORMAT_BGRA_8888:
695            // In any more formats with Alpha go here..
696            return true;
697        default : return false;
698        }
699    }
700    return false;
701}
702
703static void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
704        hwc_rect_t& crop, hwc_rect_t& dst) {
705    int hw_w = ctx->dpyAttr[dpy].xres;
706    int hw_h = ctx->dpyAttr[dpy].yres;
707    if(dst.left < 0 || dst.top < 0 ||
708            dst.right > hw_w || dst.bottom > hw_h) {
709        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
710        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
711    }
712}
713
714static void trimList(hwc_context_t *ctx, hwc_display_contents_1_t *list,
715        const int& dpy) {
716    for(uint32_t i = 0; i < list->numHwLayers - 1; i++) {
717        hwc_layer_1_t *layer = &list->hwLayers[i];
718        hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
719        trimLayer(ctx, dpy,
720                list->hwLayers[i].transform,
721                (hwc_rect_t&)crop,
722                (hwc_rect_t&)list->hwLayers[i].displayFrame);
723        layer->sourceCropf.left = crop.left;
724        layer->sourceCropf.right = crop.right;
725        layer->sourceCropf.top = crop.top;
726        layer->sourceCropf.bottom = crop.bottom;
727    }
728}
729
730void setListStats(hwc_context_t *ctx,
731        hwc_display_contents_1_t *list, int dpy) {
732    const int prevYuvCount = ctx->listStats[dpy].yuvCount;
733    memset(&ctx->listStats[dpy], 0, sizeof(ListStats));
734    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
735    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
736    ctx->listStats[dpy].skipCount = 0;
737    ctx->listStats[dpy].needsAlphaScale = false;
738    ctx->listStats[dpy].preMultipliedAlpha = false;
739    ctx->listStats[dpy].isSecurePresent = false;
740    ctx->listStats[dpy].yuvCount = 0;
741    char property[PROPERTY_VALUE_MAX];
742    ctx->listStats[dpy].extOnlyLayerIndex = -1;
743    ctx->listStats[dpy].isDisplayAnimating = false;
744    ctx->listStats[dpy].roi = ovutils::Dim(0, 0,
745                      (int)ctx->dpyAttr[dpy].xres, (int)ctx->dpyAttr[dpy].yres);
746    ctx->listStats[dpy].secureUI = false;
747    ctx->listStats[dpy].yuv4k2kCount = 0;
748    ctx->mViewFrame[dpy] = (hwc_rect_t){0, 0, 0, 0};
749
750    trimList(ctx, list, dpy);
751    optimizeLayerRects(ctx, list, dpy);
752
753    for (size_t i = 0; i < (size_t)ctx->listStats[dpy].numAppLayers; i++) {
754        hwc_layer_1_t const* layer = &list->hwLayers[i];
755        private_handle_t *hnd = (private_handle_t *)layer->handle;
756
757        // Calculate view frame of each display from the layer displayframe
758        ctx->mViewFrame[dpy] = getUnion(ctx->mViewFrame[dpy],
759                                        layer->displayFrame);
760#ifdef QCOM_BSP
761        if (layer->flags & HWC_SCREENSHOT_ANIMATOR_LAYER) {
762            ctx->listStats[dpy].isDisplayAnimating = true;
763        }
764        if(isSecureDisplayBuffer(hnd)) {
765            ctx->listStats[dpy].secureUI = true;
766        }
767#endif
768        // continue if number of app layers exceeds MAX_NUM_APP_LAYERS
769        if(ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS)
770            continue;
771
772        //reset yuv indices
773        ctx->listStats[dpy].yuvIndices[i] = -1;
774        ctx->listStats[dpy].yuv4k2kIndices[i] = -1;
775
776        if (isSecureBuffer(hnd)) {
777            ctx->listStats[dpy].isSecurePresent = true;
778        }
779
780        if (isSkipLayer(&list->hwLayers[i])) {
781            ctx->listStats[dpy].skipCount++;
782        }
783
784        if (UNLIKELY(isYuvBuffer(hnd))) {
785            int& yuvCount = ctx->listStats[dpy].yuvCount;
786            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
787            yuvCount++;
788
789            if(UNLIKELY(is4kx2kYuvBuffer(hnd))){
790                int& yuv4k2kCount = ctx->listStats[dpy].yuv4k2kCount;
791                ctx->listStats[dpy].yuv4k2kIndices[yuv4k2kCount] = i;
792                yuv4k2kCount++;
793            }
794
795            if((layer->transform & HWC_TRANSFORM_ROT_90) &&
796                    canUseRotator(ctx, dpy)) {
797                if( (dpy == HWC_DISPLAY_PRIMARY) &&
798                        ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
799                    ctx->isPaddingRound = true;
800                }
801                Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
802            }
803        }
804        if(layer->blending == HWC_BLENDING_PREMULT)
805            ctx->listStats[dpy].preMultipliedAlpha = true;
806
807        if(!ctx->listStats[dpy].needsAlphaScale)
808            ctx->listStats[dpy].needsAlphaScale =
809                    isAlphaScaled(ctx, layer, dpy);
810
811        if(UNLIKELY(isExtOnly(hnd))){
812            ctx->listStats[dpy].extOnlyLayerIndex = i;
813        }
814    }
815    if(ctx->listStats[dpy].yuvCount > 0) {
816        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
817            if (atoi(property) != 1) {
818                property_set("hw.cabl.yuv", "1");
819            }
820        }
821    } else {
822        if (property_get("hw.cabl.yuv", property, NULL) > 0) {
823            if (atoi(property) != 0) {
824                property_set("hw.cabl.yuv", "0");
825            }
826        }
827    }
828    if(dpy) {
829        //uncomment the below code for testing purpose.
830        /* char value[PROPERTY_VALUE_MAX];
831        property_get("sys.ext_orientation", value, "0");
832        // Assuming the orientation value is in terms of HAL_TRANSFORM,
833        // This needs mapping to HAL, if its in different convention
834        ctx->mExtOrientation = atoi(value); */
835        // Assuming the orientation value is in terms of HAL_TRANSFORM,
836        // This needs mapping to HAL, if its in different convention
837        if(ctx->mExtOrientation || ctx->mBufferMirrorMode) {
838            ALOGD_IF(HWC_UTILS_DEBUG, "%s: ext orientation = %d"
839                     "BufferMirrorMode = %d", __FUNCTION__,
840                     ctx->mExtOrientation, ctx->mBufferMirrorMode);
841            if(ctx->mOverlay->isPipeTypeAttached(OV_MDP_PIPE_DMA)) {
842                ctx->isPaddingRound = true;
843            }
844            Overlay::setDMAMode(Overlay::DMA_BLOCK_MODE);
845        }
846    }
847
848    //The marking of video begin/end is useful on some targets where we need
849    //to have a padding round to be able to shift pipes across mixers.
850    if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
851        ctx->mVideoTransFlag = true;
852    }
853    if(dpy == HWC_DISPLAY_PRIMARY) {
854        ctx->mAD->markDoable(ctx, list);
855    }
856}
857
858
859static void calc_cut(double& leftCutRatio, double& topCutRatio,
860        double& rightCutRatio, double& bottomCutRatio, int orient) {
861    if(orient & HAL_TRANSFORM_FLIP_H) {
862        swap(leftCutRatio, rightCutRatio);
863    }
864    if(orient & HAL_TRANSFORM_FLIP_V) {
865        swap(topCutRatio, bottomCutRatio);
866    }
867    if(orient & HAL_TRANSFORM_ROT_90) {
868        //Anti clock swapping
869        double tmpCutRatio = leftCutRatio;
870        leftCutRatio = topCutRatio;
871        topCutRatio = rightCutRatio;
872        rightCutRatio = bottomCutRatio;
873        bottomCutRatio = tmpCutRatio;
874    }
875}
876
877bool isSecuring(hwc_context_t* ctx, hwc_layer_1_t const* layer) {
878    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
879       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
880        ctx->mSecuring) {
881        return true;
882    }
883    if (isSecureModePolicy(ctx->mMDP.version)) {
884        private_handle_t *hnd = (private_handle_t *)layer->handle;
885        if(ctx->mSecureMode) {
886            if (! isSecureBuffer(hnd)) {
887                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning ON ...",
888                         __FUNCTION__);
889                return true;
890            }
891        } else {
892            if (isSecureBuffer(hnd)) {
893                ALOGD_IF(HWC_UTILS_DEBUG,"%s:Securing Turning OFF ...",
894                         __FUNCTION__);
895                return true;
896            }
897        }
898    }
899    return false;
900}
901
902bool isSecureModePolicy(int mdpVersion) {
903    if (mdpVersion < qdutils::MDSS_V5)
904        return true;
905    else
906        return false;
907}
908
909int getBlending(int blending) {
910    switch(blending) {
911    case HWC_BLENDING_NONE:
912        return overlay::utils::OVERLAY_BLENDING_OPAQUE;
913    case HWC_BLENDING_PREMULT:
914        return overlay::utils::OVERLAY_BLENDING_PREMULT;
915    case HWC_BLENDING_COVERAGE :
916    default:
917        return overlay::utils::OVERLAY_BLENDING_COVERAGE;
918    }
919}
920
921//Crops source buffer against destination and FB boundaries
922void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
923                          const hwc_rect_t& scissor, int orient) {
924
925    int& crop_l = crop.left;
926    int& crop_t = crop.top;
927    int& crop_r = crop.right;
928    int& crop_b = crop.bottom;
929    int crop_w = crop.right - crop.left;
930    int crop_h = crop.bottom - crop.top;
931
932    int& dst_l = dst.left;
933    int& dst_t = dst.top;
934    int& dst_r = dst.right;
935    int& dst_b = dst.bottom;
936    int dst_w = abs(dst.right - dst.left);
937    int dst_h = abs(dst.bottom - dst.top);
938
939    const int& sci_l = scissor.left;
940    const int& sci_t = scissor.top;
941    const int& sci_r = scissor.right;
942    const int& sci_b = scissor.bottom;
943    int sci_w = abs(sci_r - sci_l);
944    int sci_h = abs(sci_b - sci_t);
945
946    double leftCutRatio = 0.0, rightCutRatio = 0.0, topCutRatio = 0.0,
947            bottomCutRatio = 0.0;
948
949    if(dst_l < sci_l) {
950        leftCutRatio = (double)(sci_l - dst_l) / (double)dst_w;
951        dst_l = sci_l;
952    }
953
954    if(dst_r > sci_r) {
955        rightCutRatio = (double)(dst_r - sci_r) / (double)dst_w;
956        dst_r = sci_r;
957    }
958
959    if(dst_t < sci_t) {
960        topCutRatio = (double)(sci_t - dst_t) / (double)dst_h;
961        dst_t = sci_t;
962    }
963
964    if(dst_b > sci_b) {
965        bottomCutRatio = (double)(dst_b - sci_b) / (double)dst_h;
966        dst_b = sci_b;
967    }
968
969    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
970    crop_l += crop_w * leftCutRatio;
971    crop_t += crop_h * topCutRatio;
972    crop_r -= crop_w * rightCutRatio;
973    crop_b -= crop_h * bottomCutRatio;
974}
975
976bool areLayersIntersecting(const hwc_layer_1_t* layer1,
977        const hwc_layer_1_t* layer2) {
978    hwc_rect_t irect = getIntersection(layer1->displayFrame,
979            layer2->displayFrame);
980    return isValidRect(irect);
981}
982
983bool isValidRect(const hwc_rect& rect)
984{
985   return ((rect.bottom > rect.top) && (rect.right > rect.left)) ;
986}
987
988/* computes the intersection of two rects */
989hwc_rect_t getIntersection(const hwc_rect_t& rect1, const hwc_rect_t& rect2)
990{
991   hwc_rect_t res;
992
993   if(!isValidRect(rect1) || !isValidRect(rect2)){
994      return (hwc_rect_t){0, 0, 0, 0};
995   }
996
997
998   res.left = max(rect1.left, rect2.left);
999   res.top = max(rect1.top, rect2.top);
1000   res.right = min(rect1.right, rect2.right);
1001   res.bottom = min(rect1.bottom, rect2.bottom);
1002
1003   if(!isValidRect(res))
1004      return (hwc_rect_t){0, 0, 0, 0};
1005
1006   return res;
1007}
1008
1009/* computes the union of two rects */
1010hwc_rect_t getUnion(const hwc_rect &rect1, const hwc_rect &rect2)
1011{
1012   hwc_rect_t res;
1013
1014   if(!isValidRect(rect1)){
1015      return rect2;
1016   }
1017
1018   if(!isValidRect(rect2)){
1019      return rect1;
1020   }
1021
1022   res.left = min(rect1.left, rect2.left);
1023   res.top = min(rect1.top, rect2.top);
1024   res.right =  max(rect1.right, rect2.right);
1025   res.bottom =  max(rect1.bottom, rect2.bottom);
1026
1027   return res;
1028}
1029
1030/* Not a geometrical rect deduction. Deducts rect2 from rect1 only if it results
1031 * a single rect */
1032hwc_rect_t deductRect(const hwc_rect_t& rect1, const hwc_rect_t& rect2) {
1033
1034   hwc_rect_t res = rect1;
1035
1036   if((rect1.left == rect2.left) && (rect1.right == rect2.right)) {
1037      if((rect1.top == rect2.top) && (rect2.bottom <= rect1.bottom))
1038         res.top = rect2.bottom;
1039      else if((rect1.bottom == rect2.bottom)&& (rect2.top >= rect1.top))
1040         res.bottom = rect2.top;
1041   }
1042   else if((rect1.top == rect2.top) && (rect1.bottom == rect2.bottom)) {
1043      if((rect1.left == rect2.left) && (rect2.right <= rect1.right))
1044         res.left = rect2.right;
1045      else if((rect1.right == rect2.right)&& (rect2.left >= rect1.left))
1046         res.right = rect2.left;
1047   }
1048   return res;
1049}
1050
1051void optimizeLayerRects(hwc_context_t *ctx,
1052                        const hwc_display_contents_1_t *list, const int& dpy) {
1053    int i=list->numHwLayers-2;
1054    hwc_rect_t irect;
1055    while(i > 0) {
1056
1057        //see if there is no blending required.
1058        //If it is opaque see if we can substract this region from below layers.
1059        if(list->hwLayers[i].blending == HWC_BLENDING_NONE) {
1060            int j= i-1;
1061            hwc_rect_t& topframe =
1062                (hwc_rect_t&)list->hwLayers[i].displayFrame;
1063            while(j >= 0) {
1064               if(!needsScaling(ctx, &list->hwLayers[j], dpy)) {
1065                  hwc_layer_1_t* layer = (hwc_layer_1_t*)&list->hwLayers[j];
1066                  hwc_rect_t& bottomframe = layer->displayFrame;
1067                  hwc_rect_t& bottomCrop = layer->sourceCrop;
1068                  int transform =layer->transform;
1069
1070                  hwc_rect_t irect = getIntersection(bottomframe, topframe);
1071                  if(isValidRect(irect)) {
1072                     //if intersection is valid rect, deduct it
1073                     bottomframe = deductRect(bottomframe, irect);
1074                     qhwc::calculate_crop_rects(bottomCrop, bottomframe,
1075                                                bottomframe, transform);
1076
1077                  }
1078               }
1079               j--;
1080            }
1081        }
1082        i--;
1083    }
1084}
1085
1086void getNonWormholeRegion(hwc_display_contents_1_t* list,
1087                              hwc_rect_t& nwr)
1088{
1089    uint32_t last = list->numHwLayers - 1;
1090    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
1091    //Initiliaze nwr to first frame
1092    nwr.left =  list->hwLayers[0].displayFrame.left;
1093    nwr.top =  list->hwLayers[0].displayFrame.top;
1094    nwr.right =  list->hwLayers[0].displayFrame.right;
1095    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
1096
1097    for (uint32_t i = 1; i < last; i++) {
1098        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
1099        nwr = getUnion(nwr, displayFrame);
1100    }
1101
1102    //Intersect with the framebuffer
1103    nwr = getIntersection(nwr, fbDisplayFrame);
1104}
1105
1106bool isExternalActive(hwc_context_t* ctx) {
1107    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
1108}
1109
1110void closeAcquireFds(hwc_display_contents_1_t* list) {
1111    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
1112        //Close the acquireFenceFds
1113        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
1114        if(list->hwLayers[i].acquireFenceFd >= 0) {
1115            close(list->hwLayers[i].acquireFenceFd);
1116            list->hwLayers[i].acquireFenceFd = -1;
1117        }
1118    }
1119}
1120
1121int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
1122        int fd) {
1123    ATRACE_CALL();
1124    int ret = 0;
1125    int acquireFd[MAX_NUM_APP_LAYERS];
1126    int count = 0;
1127    int releaseFd = -1;
1128    int fbFd = -1;
1129    bool swapzero = false;
1130    int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
1131
1132    struct mdp_buf_sync data;
1133    memset(&data, 0, sizeof(data));
1134    data.acq_fen_fd = acquireFd;
1135    data.rel_fen_fd = &releaseFd;
1136
1137    char property[PROPERTY_VALUE_MAX];
1138    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
1139        if(atoi(property) == 0)
1140            swapzero = true;
1141    }
1142
1143    bool isExtAnimating = false;
1144    if(dpy)
1145       isExtAnimating = ctx->listStats[dpy].isDisplayAnimating;
1146
1147    //Send acquireFenceFds to rotator
1148    for(uint32_t i = 0; i < ctx->mLayerRotMap[dpy]->getCount(); i++) {
1149        int rotFd = ctx->mRotMgr->getRotDevFd();
1150        int rotReleaseFd = -1;
1151        struct mdp_buf_sync rotData;
1152        memset(&rotData, 0, sizeof(rotData));
1153        rotData.acq_fen_fd =
1154                &ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd;
1155        rotData.rel_fen_fd = &rotReleaseFd; //driver to populate this
1156        rotData.session_id = ctx->mLayerRotMap[dpy]->getRot(i)->getSessId();
1157        int ret = 0;
1158        ret = ioctl(rotFd, MSMFB_BUFFER_SYNC, &rotData);
1159        if(ret < 0) {
1160            ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed for rot sync, err=%s",
1161                    __FUNCTION__, strerror(errno));
1162        } else {
1163            close(ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd);
1164            //For MDP to wait on.
1165            ctx->mLayerRotMap[dpy]->getLayer(i)->acquireFenceFd =
1166                    dup(rotReleaseFd);
1167            //A buffer is free to be used by producer as soon as its copied to
1168            //rotator
1169            ctx->mLayerRotMap[dpy]->getLayer(i)->releaseFenceFd =
1170                    rotReleaseFd;
1171        }
1172    }
1173
1174    //Accumulate acquireFenceFds for MDP
1175    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1176        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
1177                        list->hwLayers[i].acquireFenceFd >= 0) {
1178            if(UNLIKELY(swapzero))
1179                acquireFd[count++] = -1;
1180            else
1181                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1182        }
1183        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1184            if(UNLIKELY(swapzero))
1185                acquireFd[count++] = -1;
1186            else if(fd >= 0) {
1187                //set the acquireFD from fd - which is coming from c2d
1188                acquireFd[count++] = fd;
1189                // Buffer sync IOCTL should be async when using c2d fence is
1190                // used
1191                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
1192            } else if(list->hwLayers[i].acquireFenceFd >= 0)
1193                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
1194        }
1195    }
1196
1197    data.acq_fen_fd_cnt = count;
1198    fbFd = ctx->dpyAttr[dpy].fd;
1199
1200    //Waits for acquire fences, returns a release fence
1201    if(LIKELY(!swapzero)) {
1202        uint64_t start = systemTime();
1203        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
1204        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
1205                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
1206    }
1207
1208    if(ret < 0) {
1209        ALOGE("%s: ioctl MSMFB_BUFFER_SYNC failed, err=%s",
1210                  __FUNCTION__, strerror(errno));
1211        ALOGE("%s: acq_fen_fd_cnt=%d flags=%d fd=%d dpy=%d numHwLayers=%d",
1212              __FUNCTION__, data.acq_fen_fd_cnt, data.flags, fbFd,
1213              dpy, list->numHwLayers);
1214    }
1215
1216    for(uint32_t i = 0; i < list->numHwLayers; i++) {
1217        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
1218           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
1219            //Populate releaseFenceFds.
1220            if(UNLIKELY(swapzero)) {
1221                list->hwLayers[i].releaseFenceFd = -1;
1222            } else if(isExtAnimating) {
1223                // Release all the app layer fds immediately,
1224                // if animation is in progress.
1225                hwc_layer_1_t const* layer = &list->hwLayers[i];
1226                private_handle_t *hnd = (private_handle_t *)layer->handle;
1227                if(isYuvBuffer(hnd)) {
1228                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1229                } else
1230                    list->hwLayers[i].releaseFenceFd = -1;
1231            } else if(list->hwLayers[i].releaseFenceFd < 0) {
1232                //If rotator has not already populated this field.
1233                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
1234            }
1235        }
1236    }
1237
1238    if(fd >= 0) {
1239        close(fd);
1240        fd = -1;
1241    }
1242
1243    if (ctx->mCopyBit[dpy])
1244        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
1245
1246    //Signals when MDP finishes reading rotator buffers.
1247    ctx->mLayerRotMap[dpy]->setReleaseFd(releaseFd);
1248
1249    // if external is animating, close the relaseFd
1250    if(isExtAnimating) {
1251        close(releaseFd);
1252        releaseFd = -1;
1253    }
1254
1255    if(UNLIKELY(swapzero)){
1256        list->retireFenceFd = -1;
1257        close(releaseFd);
1258    } else {
1259        list->retireFenceFd = releaseFd;
1260    }
1261
1262    return ret;
1263}
1264
1265void setMdpFlags(hwc_layer_1_t *layer,
1266        ovutils::eMdpFlags &mdpFlags,
1267        int rotDownscale, int transform) {
1268    private_handle_t *hnd = (private_handle_t *)layer->handle;
1269    MetaData_t *metadata = hnd ? (MetaData_t *)hnd->base_metadata : NULL;
1270
1271    if(layer->blending == HWC_BLENDING_PREMULT) {
1272        ovutils::setMdpFlags(mdpFlags,
1273                ovutils::OV_MDP_BLEND_FG_PREMULT);
1274    }
1275
1276    if(isYuvBuffer(hnd)) {
1277        if(isSecureBuffer(hnd)) {
1278            ovutils::setMdpFlags(mdpFlags,
1279                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1280        }
1281        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
1282                metadata->interlaced) {
1283            ovutils::setMdpFlags(mdpFlags,
1284                    ovutils::OV_MDP_DEINTERLACE);
1285        }
1286        //Pre-rotation will be used using rotator.
1287        if(transform & HWC_TRANSFORM_ROT_90) {
1288            ovutils::setMdpFlags(mdpFlags,
1289                    ovutils::OV_MDP_SOURCE_ROTATED_90);
1290        }
1291    }
1292
1293    if(isSecureDisplayBuffer(hnd)) {
1294        // Secure display needs both SECURE_OVERLAY and SECURE_DISPLAY_OV
1295        ovutils::setMdpFlags(mdpFlags,
1296                             ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
1297        ovutils::setMdpFlags(mdpFlags,
1298                             ovutils::OV_MDP_SECURE_DISPLAY_OVERLAY_SESSION);
1299    }
1300    //No 90 component and no rot-downscale then flips done by MDP
1301    //If we use rot then it might as well do flips
1302    if(!(transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
1303        if(transform & HWC_TRANSFORM_FLIP_H) {
1304            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
1305        }
1306
1307        if(transform & HWC_TRANSFORM_FLIP_V) {
1308            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
1309        }
1310    }
1311
1312    if(metadata &&
1313        ((metadata->operation & PP_PARAM_HSIC)
1314        || (metadata->operation & PP_PARAM_IGC)
1315        || (metadata->operation & PP_PARAM_SHARP2))) {
1316        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
1317    }
1318}
1319
1320int configRotator(Rotator *rot, Whf& whf,
1321        hwc_rect_t& crop, const eMdpFlags& mdpFlags,
1322        const eTransform& orient, const int& downscale) {
1323
1324    // Fix alignments for TILED format
1325    if(whf.format == MDP_Y_CRCB_H2V2_TILE ||
1326                            whf.format == MDP_Y_CBCR_H2V2_TILE) {
1327        whf.w =  utils::alignup(whf.w, 64);
1328        whf.h = utils::alignup(whf.h, 32);
1329    }
1330    rot->setSource(whf);
1331
1332    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1333        qdutils::MDSS_V5) {
1334        uint32_t crop_w = (crop.right - crop.left);
1335        uint32_t crop_h = (crop.bottom - crop.top);
1336        if (ovutils::isYuv(whf.format)) {
1337            ovutils::normalizeCrop((uint32_t&)crop.left, crop_w);
1338            ovutils::normalizeCrop((uint32_t&)crop.top, crop_h);
1339            // For interlaced, crop.h should be 4-aligned
1340            if ((mdpFlags & ovutils::OV_MDP_DEINTERLACE) && (crop_h % 4))
1341                crop_h = ovutils::aligndown(crop_h, 4);
1342            crop.right = crop.left + crop_w;
1343            crop.bottom = crop.top + crop_h;
1344        }
1345        Dim rotCrop(crop.left, crop.top, crop_w, crop_h);
1346        rot->setCrop(rotCrop);
1347    }
1348
1349    rot->setFlags(mdpFlags);
1350    rot->setTransform(orient);
1351    rot->setDownscale(downscale);
1352    if(!rot->commit()) return -1;
1353    return 0;
1354}
1355
1356int configMdp(Overlay *ov, const PipeArgs& parg,
1357        const eTransform& orient, const hwc_rect_t& crop,
1358        const hwc_rect_t& pos, const MetaData_t *metadata,
1359        const eDest& dest) {
1360    ov->setSource(parg, dest);
1361    ov->setTransform(orient, dest);
1362
1363    int crop_w = crop.right - crop.left;
1364    int crop_h = crop.bottom - crop.top;
1365    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
1366    ov->setCrop(dcrop, dest);
1367
1368    int posW = pos.right - pos.left;
1369    int posH = pos.bottom - pos.top;
1370    Dim position(pos.left, pos.top, posW, posH);
1371    ov->setPosition(position, dest);
1372
1373    if (metadata)
1374        ov->setVisualParams(*metadata, dest);
1375
1376    if (!ov->commit(dest)) {
1377        return -1;
1378    }
1379    return 0;
1380}
1381
1382int configColorLayer(hwc_context_t *ctx, hwc_layer_1_t *layer,
1383        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1384        eIsFg& isFg, const eDest& dest) {
1385
1386    hwc_rect_t dst = layer->displayFrame;
1387    trimLayer(ctx, dpy, 0, dst, dst);
1388
1389    int w = ctx->dpyAttr[dpy].xres;
1390    int h = ctx->dpyAttr[dpy].yres;
1391    int dst_w = dst.right - dst.left;
1392    int dst_h = dst.bottom - dst.top;
1393    uint32_t color = layer->transform;
1394    Whf whf(w, h, getMdpFormat(HAL_PIXEL_FORMAT_RGBA_8888), 0);
1395
1396    if (layer->blending == HWC_BLENDING_PREMULT)
1397        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_BLEND_FG_PREMULT);
1398
1399    PipeArgs parg(mdpFlags, whf, z, isFg, static_cast<eRotFlags>(0),
1400                  layer->planeAlpha,
1401                  (ovutils::eBlending) getBlending(layer->blending));
1402
1403    // Configure MDP pipe for Color layer
1404    Dim pos(dst.left, dst.top, dst_w, dst_h);
1405    ctx->mOverlay->setSource(parg, dest);
1406    ctx->mOverlay->setColor(color, dest);
1407    ctx->mOverlay->setTransform(0, dest);
1408    ctx->mOverlay->setCrop(pos, dest);
1409    ctx->mOverlay->setPosition(pos, dest);
1410
1411    if (!ctx->mOverlay->commit(dest)) {
1412        ALOGE("%s: Configure color layer failed!", __FUNCTION__);
1413        return -1;
1414    }
1415    return 0;
1416}
1417
1418void updateSource(eTransform& orient, Whf& whf,
1419        hwc_rect_t& crop) {
1420    Dim srcCrop(crop.left, crop.top,
1421            crop.right - crop.left,
1422            crop.bottom - crop.top);
1423    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
1424    preRotateSource(orient, whf, srcCrop);
1425    if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
1426        qdutils::MDSS_V5) {
1427        // Source for overlay will be the cropped (and rotated)
1428        crop.left = 0;
1429        crop.top = 0;
1430        crop.right = srcCrop.w;
1431        crop.bottom = srcCrop.h;
1432        // Set width & height equal to sourceCrop w & h
1433        whf.w = srcCrop.w;
1434        whf.h = srcCrop.h;
1435    } else {
1436        crop.left = srcCrop.x;
1437        crop.top = srcCrop.y;
1438        crop.right = srcCrop.x + srcCrop.w;
1439        crop.bottom = srcCrop.y + srcCrop.h;
1440    }
1441}
1442
1443int configureNonSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1444        const int& dpy, eMdpFlags& mdpFlags, eZorder& z,
1445        eIsFg& isFg, const eDest& dest, Rotator **rot) {
1446
1447    private_handle_t *hnd = (private_handle_t *)layer->handle;
1448
1449    if(!hnd) {
1450        if (layer->flags & HWC_COLOR_FILL) {
1451            // Configure Color layer
1452            return configColorLayer(ctx, layer, dpy, mdpFlags, z, isFg, dest);
1453        }
1454        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1455        return -1;
1456    }
1457
1458    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1459
1460    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
1461    hwc_rect_t dst = layer->displayFrame;
1462    int transform = layer->transform;
1463    eTransform orient = static_cast<eTransform>(transform);
1464    int downscale = 0;
1465    int rotFlags = ovutils::ROT_FLAGS_NONE;
1466    Whf whf(getWidth(hnd), getHeight(hnd),
1467            getMdpFormat(hnd->format), hnd->size);
1468
1469    // Handle R/B swap
1470    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1471        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1472            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1473        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1474            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1475    }
1476
1477    if(dpy && isYuvBuffer(hnd)) {
1478        if(!ctx->listStats[dpy].isDisplayAnimating) {
1479            ctx->mPrevCropVideo = crop;
1480            ctx->mPrevDestVideo = dst;
1481            ctx->mPrevTransformVideo = transform;
1482        } else {
1483            // Restore the previous crop, dest rect and transform values, during
1484            // animation to avoid displaying videos at random coordinates.
1485            crop = ctx->mPrevCropVideo;
1486            dst = ctx->mPrevDestVideo;
1487            transform = ctx->mPrevTransformVideo;
1488            orient = static_cast<eTransform>(transform);
1489            //In you tube use case when a device rotated from landscape to
1490            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1491            // hdmi during animation
1492            if(ctx->deviceOrientation) {
1493                isFg = ovutils::IS_FG_SET;
1494                z = ZORDER_1;
1495            }
1496        }
1497        calcExtDisplayPosition(ctx, hnd, dpy, crop, dst,
1498                                           transform, orient);
1499    }
1500
1501    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
1502       ctx->mMDP.version < qdutils::MDSS_V5) {
1503        downscale =  getDownscaleFactor(
1504            crop.right - crop.left,
1505            crop.bottom - crop.top,
1506            dst.right - dst.left,
1507            dst.bottom - dst.top);
1508        if(downscale) {
1509            rotFlags = ROT_DOWNSCALE_ENABLED;
1510        }
1511    }
1512
1513    setMdpFlags(layer, mdpFlags, downscale, transform);
1514
1515    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
1516            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
1517        *rot = ctx->mRotMgr->getNext();
1518        if(*rot == NULL) return -1;
1519        if(!dpy)
1520            BwcPM::setBwc(ctx, crop, dst, transform, mdpFlags);
1521        //Configure rotator for pre-rotation
1522        if(configRotator(*rot, whf, crop, mdpFlags, orient, downscale) < 0) {
1523            ALOGE("%s: configRotator failed!", __FUNCTION__);
1524            ctx->mOverlay->clear(dpy);
1525            ctx->mLayerRotMap[dpy]->clear();
1526            return -1;
1527        }
1528        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1529        whf.format = (*rot)->getDstFormat();
1530        updateSource(orient, whf, crop);
1531        rotFlags |= ovutils::ROT_PREROTATED;
1532    }
1533
1534    //For the mdp, since either we are pre-rotating or MDP does flips
1535    orient = OVERLAY_TRANSFORM_0;
1536    transform = 0;
1537    PipeArgs parg(mdpFlags, whf, z, isFg,
1538                  static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1539                  (ovutils::eBlending) getBlending(layer->blending));
1540
1541    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
1542        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
1543        ctx->mLayerRotMap[dpy]->clear();
1544        return -1;
1545    }
1546    return 0;
1547}
1548
1549//Helper to 1) Ensure crops dont have gaps 2) Ensure L and W are even
1550void sanitizeSourceCrop(hwc_rect_t& cropL, hwc_rect_t& cropR,
1551        private_handle_t *hnd) {
1552    if(cropL.right - cropL.left) {
1553        if(isYuvBuffer(hnd)) {
1554            //Always safe to even down left
1555            ovutils::even_floor(cropL.left);
1556            //If right is even, automatically width is even, since left is
1557            //already even
1558            ovutils::even_floor(cropL.right);
1559        }
1560        //Make sure there are no gaps between left and right splits if the layer
1561        //is spread across BOTH halves
1562        if(cropR.right - cropR.left) {
1563            cropR.left = cropL.right;
1564        }
1565    }
1566
1567    if(cropR.right - cropR.left) {
1568        if(isYuvBuffer(hnd)) {
1569            //Always safe to even down left
1570            ovutils::even_floor(cropR.left);
1571            //If right is even, automatically width is even, since left is
1572            //already even
1573            ovutils::even_floor(cropR.right);
1574        }
1575    }
1576}
1577
1578int configureSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1579        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1580        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1581        Rotator **rot) {
1582    private_handle_t *hnd = (private_handle_t *)layer->handle;
1583    if(!hnd) {
1584        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1585        return -1;
1586    }
1587
1588    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1589
1590    int hw_w = ctx->dpyAttr[dpy].xres;
1591    int hw_h = ctx->dpyAttr[dpy].yres;
1592    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);
1593    hwc_rect_t dst = layer->displayFrame;
1594    int transform = layer->transform;
1595    eTransform orient = static_cast<eTransform>(transform);
1596    const int downscale = 0;
1597    int rotFlags = ROT_FLAGS_NONE;
1598
1599    Whf whf(getWidth(hnd), getHeight(hnd),
1600            getMdpFormat(hnd->format), hnd->size);
1601
1602    // Handle R/B swap
1603    if (layer->flags & HWC_FORMAT_RB_SWAP) {
1604        if (hnd->format == HAL_PIXEL_FORMAT_RGBA_8888)
1605            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRA_8888);
1606        else if (hnd->format == HAL_PIXEL_FORMAT_RGBX_8888)
1607            whf.format = getMdpFormat(HAL_PIXEL_FORMAT_BGRX_8888);
1608    }
1609
1610    if(dpy && isYuvBuffer(hnd)) {
1611        if(!ctx->listStats[dpy].isDisplayAnimating) {
1612            ctx->mPrevCropVideo = crop;
1613            ctx->mPrevDestVideo = dst;
1614            ctx->mPrevTransformVideo = transform;
1615        } else {
1616            // Restore the previous crop, dest rect and transform values, during
1617            // animation to avoid displaying videos at random coordinates.
1618            crop = ctx->mPrevCropVideo;
1619            dst = ctx->mPrevDestVideo;
1620            transform = ctx->mPrevTransformVideo;
1621            orient = static_cast<eTransform>(transform);
1622            //In you tube use case when a device rotated from landscape to
1623            // portrait, set the isFg flag and zOrder to avoid displaying UI on
1624            // hdmi during animation
1625            if(ctx->deviceOrientation) {
1626                isFg = ovutils::IS_FG_SET;
1627                z = ZORDER_1;
1628            }
1629        }
1630    }
1631
1632    setMdpFlags(layer, mdpFlagsL, 0, transform);
1633
1634    if(lDest != OV_INVALID && rDest != OV_INVALID) {
1635        //Enable overfetch
1636        setMdpFlags(mdpFlagsL, OV_MDSS_MDP_DUAL_PIPE);
1637    }
1638
1639    //Will do something only if feature enabled and conditions suitable
1640    //hollow call otherwise
1641    if(ctx->mAD->prepare(ctx, crop, whf, hnd)) {
1642        overlay::Writeback *wb = overlay::Writeback::getInstance();
1643        whf.format = wb->getOutputFormat();
1644    }
1645
1646    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1647        (*rot) = ctx->mRotMgr->getNext();
1648        if((*rot) == NULL) return -1;
1649        //Configure rotator for pre-rotation
1650        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1651            ALOGE("%s: configRotator failed!", __FUNCTION__);
1652            ctx->mOverlay->clear(dpy);
1653            ctx->mLayerRotMap[dpy]->clear();
1654            return -1;
1655        }
1656        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1657        whf.format = (*rot)->getDstFormat();
1658        updateSource(orient, whf, crop);
1659        rotFlags |= ROT_PREROTATED;
1660    }
1661
1662    eMdpFlags mdpFlagsR = mdpFlagsL;
1663    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
1664
1665    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1666    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1667
1668    const int lSplit = getLeftSplit(ctx, dpy);
1669
1670    if(lDest != OV_INVALID) {
1671        tmp_cropL = crop;
1672        tmp_dstL = dst;
1673        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
1674        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1675    }
1676    if(rDest != OV_INVALID) {
1677        tmp_cropR = crop;
1678        tmp_dstR = dst;
1679        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
1680        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1681    }
1682
1683    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1684
1685    //When buffer is H-flipped, contents of mixer config also needs to swapped
1686    //Not needed if the layer is confined to one half of the screen.
1687    //If rotator has been used then it has also done the flips, so ignore them.
1688    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1689            && rDest != OV_INVALID && (*rot) == NULL) {
1690        hwc_rect_t new_cropR;
1691        new_cropR.left = tmp_cropL.left;
1692        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1693
1694        hwc_rect_t new_cropL;
1695        new_cropL.left  = new_cropR.right;
1696        new_cropL.right = tmp_cropR.right;
1697
1698        tmp_cropL.left =  new_cropL.left;
1699        tmp_cropL.right =  new_cropL.right;
1700
1701        tmp_cropR.left = new_cropR.left;
1702        tmp_cropR.right =  new_cropR.right;
1703
1704    }
1705
1706    //For the mdp, since either we are pre-rotating or MDP does flips
1707    orient = OVERLAY_TRANSFORM_0;
1708    transform = 0;
1709
1710    //configure left mixer
1711    if(lDest != OV_INVALID) {
1712        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
1713                       static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1714                       (ovutils::eBlending) getBlending(layer->blending));
1715
1716        if(configMdp(ctx->mOverlay, pargL, orient,
1717                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1718            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
1719            ctx->mLayerRotMap[dpy]->clear();
1720            return -1;
1721        }
1722    }
1723
1724    //configure right mixer
1725    if(rDest != OV_INVALID) {
1726        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
1727                       static_cast<eRotFlags>(rotFlags),
1728                       layer->planeAlpha,
1729                       (ovutils::eBlending) getBlending(layer->blending));
1730        tmp_dstR.right = tmp_dstR.right - lSplit;
1731        tmp_dstR.left = tmp_dstR.left - lSplit;
1732        if(configMdp(ctx->mOverlay, pargR, orient,
1733                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1734            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
1735            ctx->mLayerRotMap[dpy]->clear();
1736            return -1;
1737        }
1738    }
1739
1740    return 0;
1741}
1742
1743int configureSourceSplit(hwc_context_t *ctx, hwc_layer_1_t *layer,
1744        const int& dpy, eMdpFlags& mdpFlagsL, eZorder& z,
1745        eIsFg& isFg, const eDest& lDest, const eDest& rDest,
1746        Rotator **rot) {
1747    private_handle_t *hnd = (private_handle_t *)layer->handle;
1748    if(!hnd) {
1749        ALOGE("%s: layer handle is NULL", __FUNCTION__);
1750        return -1;
1751    }
1752
1753    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
1754
1755    int hw_w = ctx->dpyAttr[dpy].xres;
1756    int hw_h = ctx->dpyAttr[dpy].yres;
1757    hwc_rect_t crop = integerizeSourceCrop(layer->sourceCropf);;
1758    hwc_rect_t dst = layer->displayFrame;
1759    int transform = layer->transform;
1760    eTransform orient = static_cast<eTransform>(transform);
1761    const int downscale = 0;
1762    int rotFlags = ROT_FLAGS_NONE;
1763    //Splitting only YUV layer on primary panel needs different zorders
1764    //for both layers as both the layers are configured to single mixer
1765    eZorder lz = z;
1766    eZorder rz = (eZorder)(z + 1);
1767
1768    Whf whf(getWidth(hnd), getHeight(hnd),
1769            getMdpFormat(hnd->format), hnd->size);
1770
1771    setMdpFlags(layer, mdpFlagsL, 0, transform);
1772    trimLayer(ctx, dpy, transform, crop, dst);
1773
1774    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
1775        (*rot) = ctx->mRotMgr->getNext();
1776        if((*rot) == NULL) return -1;
1777        if(!dpy)
1778            BwcPM::setBwc(ctx, crop, dst, transform, mdpFlagsL);
1779        //Configure rotator for pre-rotation
1780        if(configRotator(*rot, whf, crop, mdpFlagsL, orient, downscale) < 0) {
1781            ALOGE("%s: configRotator failed!", __FUNCTION__);
1782            ctx->mOverlay->clear(dpy);
1783            return -1;
1784        }
1785        ctx->mLayerRotMap[dpy]->add(layer, *rot);
1786        whf.format = (*rot)->getDstFormat();
1787        updateSource(orient, whf, crop);
1788        rotFlags |= ROT_PREROTATED;
1789    }
1790
1791    eMdpFlags mdpFlagsR = mdpFlagsL;
1792    int lSplit = dst.left + (dst.right - dst.left)/2;
1793
1794    hwc_rect_t tmp_cropL = {0}, tmp_dstL = {0};
1795    hwc_rect_t tmp_cropR = {0}, tmp_dstR = {0};
1796
1797    if(lDest != OV_INVALID) {
1798        tmp_cropL = crop;
1799        tmp_dstL = dst;
1800        hwc_rect_t scissor = {dst.left, dst.top, lSplit, dst.bottom };
1801        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
1802    }
1803    if(rDest != OV_INVALID) {
1804        tmp_cropR = crop;
1805        tmp_dstR = dst;
1806        hwc_rect_t scissor = {lSplit, dst.top, dst.right, dst.bottom };
1807        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
1808    }
1809
1810    sanitizeSourceCrop(tmp_cropL, tmp_cropR, hnd);
1811
1812    //When buffer is H-flipped, contents of mixer config also needs to swapped
1813    //Not needed if the layer is confined to one half of the screen.
1814    //If rotator has been used then it has also done the flips, so ignore them.
1815    if((orient & OVERLAY_TRANSFORM_FLIP_H) && lDest != OV_INVALID
1816            && rDest != OV_INVALID && (*rot) == NULL) {
1817        hwc_rect_t new_cropR;
1818        new_cropR.left = tmp_cropL.left;
1819        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
1820
1821        hwc_rect_t new_cropL;
1822        new_cropL.left  = new_cropR.right;
1823        new_cropL.right = tmp_cropR.right;
1824
1825        tmp_cropL.left =  new_cropL.left;
1826        tmp_cropL.right =  new_cropL.right;
1827
1828        tmp_cropR.left = new_cropR.left;
1829        tmp_cropR.right =  new_cropR.right;
1830
1831    }
1832
1833    //For the mdp, since either we are pre-rotating or MDP does flips
1834    orient = OVERLAY_TRANSFORM_0;
1835    transform = 0;
1836
1837    //configure left half
1838    if(lDest != OV_INVALID) {
1839        PipeArgs pargL(mdpFlagsL, whf, lz, isFg,
1840                static_cast<eRotFlags>(rotFlags), layer->planeAlpha,
1841                (ovutils::eBlending) getBlending(layer->blending));
1842
1843        if(configMdp(ctx->mOverlay, pargL, orient,
1844                    tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
1845            ALOGE("%s: commit failed for left half config", __FUNCTION__);
1846            return -1;
1847        }
1848    }
1849
1850    //configure right half
1851    if(rDest != OV_INVALID) {
1852        PipeArgs pargR(mdpFlagsR, whf, rz, isFg,
1853                static_cast<eRotFlags>(rotFlags),
1854                layer->planeAlpha,
1855                (ovutils::eBlending) getBlending(layer->blending));
1856        if(configMdp(ctx->mOverlay, pargR, orient,
1857                    tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
1858            ALOGE("%s: commit failed for right half config", __FUNCTION__);
1859            return -1;
1860        }
1861    }
1862
1863    return 0;
1864}
1865
1866bool canUseRotator(hwc_context_t *ctx, int dpy) {
1867    if(qdutils::MDPVersion::getInstance().is8x26() &&
1868            ctx->mVirtualDisplay->isConnected() &&
1869            !ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause) {
1870        /* 8x26 mdss driver supports multiplexing of DMA pipe
1871         * in LINE and BLOCK modes for writeback panels.
1872         */
1873        if(dpy == HWC_DISPLAY_PRIMARY)
1874            return false;
1875    }
1876    if(ctx->mMDP.version == qdutils::MDP_V3_0_4)
1877        return false;
1878    return true;
1879}
1880
1881int getLeftSplit(hwc_context_t *ctx, const int& dpy) {
1882    //Default even split for all displays with high res
1883    int lSplit = ctx->dpyAttr[dpy].xres / 2;
1884    if(dpy == HWC_DISPLAY_PRIMARY &&
1885            qdutils::MDPVersion::getInstance().getLeftSplit()) {
1886        //Override if split published by driver for primary
1887        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
1888    }
1889    return lSplit;
1890}
1891
1892bool isDisplaySplit(hwc_context_t* ctx, int dpy) {
1893    if(ctx->dpyAttr[dpy].xres > qdutils::MAX_DISPLAY_DIM) {
1894        return true;
1895    }
1896    //For testing we could split primary via device tree values
1897    if(dpy == HWC_DISPLAY_PRIMARY &&
1898        qdutils::MDPVersion::getInstance().getRightSplit()) {
1899        return true;
1900    }
1901    return false;
1902}
1903
1904void BwcPM::setBwc(hwc_context_t *ctx, const hwc_rect_t& crop,
1905            const hwc_rect_t& dst, const int& transform,
1906            ovutils::eMdpFlags& mdpFlags) {
1907    //Target doesnt support Bwc
1908    if(!qdutils::MDPVersion::getInstance().supportsBWC()) {
1909        return;
1910    }
1911    //src width > MAX mixer supported dim
1912    if((crop.right - crop.left) > qdutils::MAX_DISPLAY_DIM) {
1913        return;
1914    }
1915    //Decimation necessary, cannot use BWC. H/W requirement.
1916    if(qdutils::MDPVersion::getInstance().supportsDecimation()) {
1917        int src_w = crop.right - crop.left;
1918        int src_h = crop.bottom - crop.top;
1919        int dst_w = dst.right - dst.left;
1920        int dst_h = dst.bottom - dst.top;
1921        if(transform & HAL_TRANSFORM_ROT_90) {
1922            swap(src_w, src_h);
1923        }
1924        float horDscale = 0.0f;
1925        float verDscale = 0.0f;
1926        int horzDeci = 0;
1927        int vertDeci = 0;
1928        ovutils::getDecimationFactor(src_w, src_h, dst_w, dst_h, horDscale,
1929                verDscale);
1930        //TODO Use log2f once math.h has it
1931        if((int)horDscale)
1932            horzDeci = (int)(log(horDscale) / log(2));
1933        if((int)verDscale)
1934            vertDeci = (int)(log(verDscale) / log(2));
1935        if(horzDeci || vertDeci) return;
1936    }
1937    //Property
1938    char value[PROPERTY_VALUE_MAX];
1939    property_get("debug.disable.bwc", value, "0");
1940     if(atoi(value)) return;
1941
1942    ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDSS_MDP_BWC_EN);
1943}
1944
1945void LayerRotMap::add(hwc_layer_1_t* layer, Rotator *rot) {
1946    if(mCount >= MAX_SESS) return;
1947    mLayer[mCount] = layer;
1948    mRot[mCount] = rot;
1949    mCount++;
1950}
1951
1952void LayerRotMap::reset() {
1953    for (int i = 0; i < MAX_SESS; i++) {
1954        mLayer[i] = 0;
1955        mRot[i] = 0;
1956    }
1957    mCount = 0;
1958}
1959
1960void LayerRotMap::clear() {
1961    for (uint32_t i = 0; i < mCount; i++) {
1962        //mCount represents rotator objects for just this display.
1963        //We could have popped mCount topmost objects from mRotMgr, but if each
1964        //round has the same failure, typical of stability runs, it would lead
1965        //to unnecessary memory allocation, deallocation each time. So we let
1966        //the rotator objects be around, but just knock off the fences they
1967        //hold. Ultimately the rotator objects will be GCed when not required.
1968        //Also resetting fences is required if at least one rotation round has
1969        //succeeded before. It'll be a NOP otherwise.
1970        mRot[i]->resetReleaseFd();
1971    }
1972    reset();
1973}
1974
1975void LayerRotMap::setReleaseFd(const int& fence) {
1976    for(uint32_t i = 0; i < mCount; i++) {
1977        mRot[i]->setReleaseFd(dup(fence));
1978    }
1979}
1980
1981};//namespace qhwc
1982