hwc_utils.cpp revision ffc656e881bc4dba3fb2418bb32fe4194b1d55e3 
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 HWC_UTILS_DEBUG 0
21#include <sys/ioctl.h>
22#include <linux/fb.h>
23#include <binder/IServiceManager.h>
24#include <EGL/egl.h>
25#include <cutils/properties.h>
26#include <gralloc_priv.h>
27#include <overlay.h>
28#include <overlayRotator.h>
29#include "hwc_utils.h"
30#include "hwc_mdpcomp.h"
31#include "hwc_fbupdate.h"
32#include "hwc_video.h"
33#include "mdp_version.h"
34#include "hwc_copybit.h"
35#include "external.h"
36#include "hwc_qclient.h"
37#include "QService.h"
38#include "comptype.h"
39
40using namespace qClient;
41using namespace qService;
42using namespace android;
43using namespace overlay;
44using namespace overlay::utils;
45namespace ovutils = overlay::utils;
46
47namespace qhwc {
48
49static int openFramebufferDevice(hwc_context_t *ctx)
50{
51    struct fb_fix_screeninfo finfo;
52    struct fb_var_screeninfo info;
53
54    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
55
56    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1)
57        return -errno;
58
59    if (int(info.width) <= 0 || int(info.height) <= 0) {
60        // the driver doesn't return that information
61        // default to 160 dpi
62        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
63        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
64    }
65
66    float xdpi = (info.xres * 25.4f) / info.width;
67    float ydpi = (info.yres * 25.4f) / info.height;
68
69#ifdef MSMFB_METADATA_GET
70    struct msmfb_metadata metadata;
71    memset(&metadata, 0 , sizeof(metadata));
72    metadata.op = metadata_op_frame_rate;
73
74    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
75        ALOGE("Error retrieving panel frame rate");
76        return -errno;
77    }
78
79    float fps  = metadata.data.panel_frame_rate;
80#else
81    //XXX: Remove reserved field usage on all baselines
82    //The reserved[3] field is used to store FPS by the driver.
83    float fps  = info.reserved[3] & 0xFF;
84#endif
85
86    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1)
87        return -errno;
88
89    if (finfo.smem_len <= 0)
90        return -errno;
91
92    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
93    //xres, yres may not be 32 aligned
94    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
95    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
96    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
97    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
98    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
99    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
100
101    return 0;
102}
103
104void initContext(hwc_context_t *ctx)
105{
106    openFramebufferDevice(ctx);
107    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
108    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
109    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
110    overlay::Overlay::initOverlay();
111    ctx->mOverlay = overlay::Overlay::getInstance();
112    ctx->mRotMgr = new RotMgr();
113
114    //Is created and destroyed only once for primary
115    //For external it could get created and destroyed multiple times depending
116    //on what external we connect to.
117    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
118        IFBUpdate::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
119        HWC_DISPLAY_PRIMARY);
120
121    ctx->mVidOv[HWC_DISPLAY_PRIMARY] =
122        IVideoOverlay::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
123        HWC_DISPLAY_PRIMARY);
124
125    char value[PROPERTY_VALUE_MAX];
126    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
127    // decide if we need to open the copybit module.
128    int compositionType =
129        qdutils::QCCompositionType::getInstance().getCompositionType();
130
131    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
132                           qdutils::COMPOSITION_TYPE_MDP |
133                           qdutils::COMPOSITION_TYPE_C2D)) {
134            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit();
135    }
136
137    ctx->mExtDisplay = new ExternalDisplay(ctx);
138    for (uint32_t i = 0; i < MAX_DISPLAYS; i++)
139        ctx->mLayerCache[i] = new LayerCache();
140    ctx->mMDPComp = MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres);
141    MDPComp::init(ctx);
142
143    pthread_mutex_init(&(ctx->vstate.lock), NULL);
144    pthread_cond_init(&(ctx->vstate.cond), NULL);
145    ctx->vstate.enable = false;
146    ctx->vstate.fakevsync = false;
147    ctx->mExtDispConfiguring = false;
148
149    //Right now hwc starts the service but anybody could do it, or it could be
150    //independent process as well.
151    QService::init();
152    sp<IQClient> client = new QClient(ctx);
153    interface_cast<IQService>(
154            defaultServiceManager()->getService(
155            String16("display.qservice")))->connect(client);
156
157    ALOGI("Initializing Qualcomm Hardware Composer");
158    ALOGI("MDP version: %d", ctx->mMDP.version);
159}
160
161void closeContext(hwc_context_t *ctx)
162{
163    if(ctx->mOverlay) {
164        delete ctx->mOverlay;
165        ctx->mOverlay = NULL;
166    }
167
168    if(ctx->mRotMgr) {
169        delete ctx->mRotMgr;
170        ctx->mRotMgr = NULL;
171    }
172
173    for(int i = 0; i < MAX_DISPLAYS; i++) {
174        if(ctx->mCopyBit[i]) {
175            delete ctx->mCopyBit[i];
176            ctx->mCopyBit[i] = NULL;
177        }
178    }
179
180    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
181        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
182        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
183    }
184
185    if(ctx->mExtDisplay) {
186        delete ctx->mExtDisplay;
187        ctx->mExtDisplay = NULL;
188    }
189
190    for(int i = 0; i < MAX_DISPLAYS; i++) {
191        if(ctx->mFBUpdate[i]) {
192            delete ctx->mFBUpdate[i];
193            ctx->mFBUpdate[i] = NULL;
194        }
195        if(ctx->mVidOv[i]) {
196            delete ctx->mVidOv[i];
197            ctx->mVidOv[i] = NULL;
198        }
199    }
200
201    if(ctx->mMDPComp) {
202        delete ctx->mMDPComp;
203        ctx->mMDPComp = NULL;
204    }
205
206    pthread_mutex_destroy(&(ctx->vstate.lock));
207    pthread_cond_destroy(&(ctx->vstate.cond));
208}
209
210
211void dumpsys_log(android::String8& buf, const char* fmt, ...)
212{
213    va_list varargs;
214    va_start(varargs, fmt);
215    buf.appendFormatV(fmt, varargs);
216    va_end(varargs);
217}
218
219/* Calculates the destination position based on the action safe rectangle */
220void getActionSafePosition(hwc_context_t *ctx, int dpy, uint32_t& x,
221                           uint32_t& y, uint32_t& w, uint32_t& h) {
222
223    // if external supports underscan, do nothing
224    // it will be taken care in the driver
225    if(ctx->mExtDisplay->isCEUnderscanSupported())
226        return;
227
228    float wRatio = 1.0;
229    float hRatio = 1.0;
230    float xRatio = 1.0;
231    float yRatio = 1.0;
232
233    float fbWidth = ctx->dpyAttr[dpy].xres;
234    float fbHeight = ctx->dpyAttr[dpy].yres;
235
236    float asX = 0;
237    float asY = 0;
238    float asW = fbWidth;
239    float asH= fbHeight;
240    char value[PROPERTY_VALUE_MAX];
241
242    // Apply action safe parameters
243    property_get("hw.actionsafe.width", value, "0");
244    int asWidthRatio = atoi(value);
245    property_get("hw.actionsafe.height", value, "0");
246    int asHeightRatio = atoi(value);
247    // based on the action safe ratio, get the Action safe rectangle
248    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
249    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
250    asX = (fbWidth - asW) / 2;
251    asY = (fbHeight - asH) / 2;
252
253    // calculate the position ratio
254    xRatio = (float)x/fbWidth;
255    yRatio = (float)y/fbHeight;
256    wRatio = (float)w/fbWidth;
257    hRatio = (float)h/fbHeight;
258
259    //Calculate the position...
260    x = (xRatio * asW) + asX;
261    y = (yRatio * asH) + asY;
262    w = (wRatio * asW);
263    h = (hRatio * asH);
264
265    return;
266}
267
268bool needsScaling(hwc_layer_1_t const* layer) {
269    int dst_w, dst_h, src_w, src_h;
270
271    hwc_rect_t displayFrame  = layer->displayFrame;
272    hwc_rect_t sourceCrop = layer->sourceCrop;
273
274    dst_w = displayFrame.right - displayFrame.left;
275    dst_h = displayFrame.bottom - displayFrame.top;
276
277    src_w = sourceCrop.right - sourceCrop.left;
278    src_h = sourceCrop.bottom - sourceCrop.top;
279
280    if(((src_w != dst_w) || (src_h != dst_h)))
281        return true;
282
283    return false;
284}
285
286bool isAlphaScaled(hwc_layer_1_t const* layer) {
287    if(needsScaling(layer)) {
288        if(layer->blending != HWC_BLENDING_NONE)
289            return true;
290    }
291    return false;
292}
293
294void setListStats(hwc_context_t *ctx,
295        const hwc_display_contents_1_t *list, int dpy) {
296
297    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
298    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
299    ctx->listStats[dpy].skipCount = 0;
300    ctx->listStats[dpy].needsAlphaScale = false;
301    ctx->listStats[dpy].yuvCount = 0;
302    ctx->mDMAInUse = false;
303
304    for (size_t i = 0; i < list->numHwLayers; i++) {
305        hwc_layer_1_t const* layer = &list->hwLayers[i];
306        private_handle_t *hnd = (private_handle_t *)layer->handle;
307
308        //reset stored yuv index
309        ctx->listStats[dpy].yuvIndices[i] = -1;
310
311        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
312            continue;
313        //We disregard FB being skip for now! so the else if
314        } else if (isSkipLayer(&list->hwLayers[i])) {
315            ctx->listStats[dpy].skipCount++;
316        } else if (UNLIKELY(isYuvBuffer(hnd))) {
317            int& yuvCount = ctx->listStats[dpy].yuvCount;
318            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
319            yuvCount++;
320
321            if((layer->transform & HWC_TRANSFORM_ROT_90) && !ctx->mDMAInUse)
322                ctx->mDMAInUse = true;
323        }
324
325        if(!ctx->listStats[dpy].needsAlphaScale)
326            ctx->listStats[dpy].needsAlphaScale = isAlphaScaled(layer);
327    }
328}
329
330
331static inline void calc_cut(float& leftCutRatio, float& topCutRatio,
332        float& rightCutRatio, float& bottomCutRatio, int orient) {
333    if(orient & HAL_TRANSFORM_FLIP_H) {
334        swap(leftCutRatio, rightCutRatio);
335    }
336    if(orient & HAL_TRANSFORM_FLIP_V) {
337        swap(topCutRatio, bottomCutRatio);
338    }
339    if(orient & HAL_TRANSFORM_ROT_90) {
340        //Anti clock swapping
341        float tmpCutRatio = leftCutRatio;
342        leftCutRatio = topCutRatio;
343        topCutRatio = rightCutRatio;
344        rightCutRatio = bottomCutRatio;
345        bottomCutRatio = tmpCutRatio;
346    }
347}
348
349bool isSecuring(hwc_context_t* ctx) {
350    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
351       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
352        ctx->mSecuring) {
353        return true;
354    }
355    return false;
356}
357
358bool isSecureModePolicy(int mdpVersion) {
359    if (mdpVersion < qdutils::MDSS_V5)
360        return true;
361    else
362        return false;
363}
364
365//Crops source buffer against destination and FB boundaries
366void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
367                          const hwc_rect_t& scissor, int orient) {
368
369    int& crop_l = crop.left;
370    int& crop_t = crop.top;
371    int& crop_r = crop.right;
372    int& crop_b = crop.bottom;
373    int crop_w = crop.right - crop.left;
374    int crop_h = crop.bottom - crop.top;
375
376    int& dst_l = dst.left;
377    int& dst_t = dst.top;
378    int& dst_r = dst.right;
379    int& dst_b = dst.bottom;
380    int dst_w = abs(dst.right - dst.left);
381    int dst_h = abs(dst.bottom - dst.top);
382
383    const int& sci_l = scissor.left;
384    const int& sci_t = scissor.top;
385    const int& sci_r = scissor.right;
386    const int& sci_b = scissor.bottom;
387    int sci_w = abs(sci_r - sci_l);
388    int sci_h = abs(sci_b - sci_t);
389
390    float leftCutRatio = 0.0f, rightCutRatio = 0.0f, topCutRatio = 0.0f,
391            bottomCutRatio = 0.0f;
392
393    if(dst_l < sci_l) {
394        leftCutRatio = (float)(sci_l - dst_l) / (float)dst_w;
395        dst_l = sci_l;
396    }
397
398    if(dst_r > sci_r) {
399        rightCutRatio = (float)(dst_r - sci_r) / (float)dst_w;
400        dst_r = sci_r;
401    }
402
403    if(dst_t < sci_t) {
404        topCutRatio = (float)(sci_t - dst_t) / (float)dst_h;
405        dst_t = sci_t;
406    }
407
408    if(dst_b > sci_b) {
409        bottomCutRatio = (float)(dst_b - sci_b) / (float)dst_h;
410        dst_b = sci_b;
411    }
412
413    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
414    crop_l += crop_w * leftCutRatio;
415    crop_t += crop_h * topCutRatio;
416    crop_r -= crop_w * rightCutRatio;
417    crop_b -= crop_h * bottomCutRatio;
418}
419
420void getNonWormholeRegion(hwc_display_contents_1_t* list,
421                              hwc_rect_t& nwr)
422{
423    uint32_t last = list->numHwLayers - 1;
424    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
425    //Initiliaze nwr to first frame
426    nwr.left =  list->hwLayers[0].displayFrame.left;
427    nwr.top =  list->hwLayers[0].displayFrame.top;
428    nwr.right =  list->hwLayers[0].displayFrame.right;
429    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
430
431    for (uint32_t i = 1; i < last; i++) {
432        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
433        nwr.left   = min(nwr.left, displayFrame.left);
434        nwr.top    = min(nwr.top, displayFrame.top);
435        nwr.right  = max(nwr.right, displayFrame.right);
436        nwr.bottom = max(nwr.bottom, displayFrame.bottom);
437    }
438
439    //Intersect with the framebuffer
440    nwr.left   = max(nwr.left, fbDisplayFrame.left);
441    nwr.top    = max(nwr.top, fbDisplayFrame.top);
442    nwr.right  = min(nwr.right, fbDisplayFrame.right);
443    nwr.bottom = min(nwr.bottom, fbDisplayFrame.bottom);
444
445}
446
447bool isExternalActive(hwc_context_t* ctx) {
448    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
449}
450
451void closeAcquireFds(hwc_display_contents_1_t* list) {
452    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
453        //Close the acquireFenceFds
454        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
455        if(list->hwLayers[i].acquireFenceFd >= 0) {
456            close(list->hwLayers[i].acquireFenceFd);
457            list->hwLayers[i].acquireFenceFd = -1;
458        }
459    }
460}
461
462int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
463                                                        int fd) {
464    int ret = 0;
465    struct mdp_buf_sync data;
466    int acquireFd[MAX_NUM_LAYERS];
467    int count = 0;
468    int releaseFd = -1;
469    int fbFd = -1;
470    memset(&data, 0, sizeof(data));
471    bool swapzero = false;
472    data.flags = MDP_BUF_SYNC_FLAG_WAIT;
473    data.acq_fen_fd = acquireFd;
474    data.rel_fen_fd = &releaseFd;
475    char property[PROPERTY_VALUE_MAX];
476    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
477        if(atoi(property) == 0)
478            swapzero = true;
479    }
480
481    //Accumulate acquireFenceFds
482    for(uint32_t i = 0; i < list->numHwLayers; i++) {
483        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
484                        list->hwLayers[i].acquireFenceFd != -1) {
485            if(UNLIKELY(swapzero))
486                acquireFd[count++] = -1;
487            else
488                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
489        }
490        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
491            if(UNLIKELY(swapzero))
492                acquireFd[count++] = -1;
493            else if(fd != -1) {
494                //set the acquireFD from fd - which is coming from c2d
495                acquireFd[count++] = fd;
496                // Buffer sync IOCTL should be async when using c2d fence is
497                // used
498                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
499            } else if(list->hwLayers[i].acquireFenceFd != -1)
500                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
501        }
502    }
503
504    data.acq_fen_fd_cnt = count;
505    fbFd = ctx->dpyAttr[dpy].fd;
506    //Waits for acquire fences, returns a release fence
507    if(LIKELY(!swapzero)) {
508        uint64_t start = systemTime();
509        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
510        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
511                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
512    }
513
514    if(ret < 0) {
515        ALOGE("ioctl MSMFB_BUFFER_SYNC failed, err=%s",
516                strerror(errno));
517    }
518
519    for(uint32_t i = 0; i < list->numHwLayers; i++) {
520        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
521           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
522            //Populate releaseFenceFds.
523            if(UNLIKELY(swapzero))
524                list->hwLayers[i].releaseFenceFd = -1;
525            else
526                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
527        }
528    }
529
530    if(fd >= 0) {
531        close(fd);
532        fd = -1;
533    }
534
535    if (ctx->mCopyBit[dpy])
536        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
537    if(UNLIKELY(swapzero)){
538        list->retireFenceFd = -1;
539        close(releaseFd);
540    } else {
541        list->retireFenceFd = releaseFd;
542    }
543
544    return ret;
545}
546
547void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
548        hwc_rect_t& crop, hwc_rect_t& dst) {
549    int hw_w = ctx->dpyAttr[dpy].xres;
550    int hw_h = ctx->dpyAttr[dpy].yres;
551    if(dst.left < 0 || dst.top < 0 ||
552            dst.right > hw_w || dst.bottom > hw_h) {
553        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
554        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
555    }
556}
557
558void setMdpFlags(hwc_layer_1_t *layer,
559        ovutils::eMdpFlags &mdpFlags,
560        int rotDownscale) {
561    private_handle_t *hnd = (private_handle_t *)layer->handle;
562    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
563    const int& transform = layer->transform;
564
565    if(layer->blending == HWC_BLENDING_PREMULT) {
566        ovutils::setMdpFlags(mdpFlags,
567                ovutils::OV_MDP_BLEND_FG_PREMULT);
568    }
569
570    if(isYuvBuffer(hnd)) {
571        if(isSecureBuffer(hnd)) {
572            ovutils::setMdpFlags(mdpFlags,
573                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
574        }
575        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
576                metadata->interlaced) {
577            ovutils::setMdpFlags(mdpFlags,
578                    ovutils::OV_MDP_DEINTERLACE);
579        }
580        //Pre-rotation will be used using rotator.
581        if(transform & HWC_TRANSFORM_ROT_90) {
582            ovutils::setMdpFlags(mdpFlags,
583                    ovutils::OV_MDP_SOURCE_ROTATED_90);
584        }
585    }
586
587    //No 90 component and no rot-downscale then flips done by MDP
588    //If we use rot then it might as well do flips
589    if(!(layer->transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
590        if(layer->transform & HWC_TRANSFORM_FLIP_H) {
591            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
592        }
593
594        if(layer->transform & HWC_TRANSFORM_FLIP_V) {
595            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
596        }
597    }
598}
599
600static inline int configRotator(Rotator *rot, const Whf& whf,
601        const eMdpFlags& mdpFlags, const eTransform& orient,
602        const int& downscale) {
603    rot->setSource(whf);
604    rot->setFlags(mdpFlags);
605    rot->setTransform(orient);
606    rot->setDownscale(downscale);
607    if(!rot->commit()) return -1;
608    return 0;
609}
610
611static inline int configMdp(Overlay *ov, const PipeArgs& parg,
612        const eTransform& orient, const hwc_rect_t& crop,
613        const hwc_rect_t& pos, const eDest& dest) {
614    ov->setSource(parg, dest);
615    ov->setTransform(orient, dest);
616
617    int crop_w = crop.right - crop.left;
618    int crop_h = crop.bottom - crop.top;
619    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
620    ov->setCrop(dcrop, dest);
621
622    int posW = pos.right - pos.left;
623    int posH = pos.bottom - pos.top;
624    Dim position(pos.left, pos.top, posW, posH);
625    ov->setPosition(position, dest);
626
627    if (!ov->commit(dest)) {
628        return -1;
629    }
630    return 0;
631}
632
633static inline void updateSource(eTransform& orient, Whf& whf,
634        hwc_rect_t& crop) {
635    Dim srcCrop(crop.left, crop.top,
636            crop.right - crop.left,
637            crop.bottom - crop.top);
638    //getMdpOrient will switch the flips if the source is 90 rotated.
639    //Clients in Android dont factor in 90 rotation while deciding the flip.
640    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
641    preRotateSource(orient, whf, srcCrop);
642    crop.left = srcCrop.x;
643    crop.top = srcCrop.y;
644    crop.right = srcCrop.x + srcCrop.w;
645    crop.bottom = srcCrop.y + srcCrop.h;
646}
647
648int configureLowRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
649        const int& dpy, eMdpFlags& mdpFlags, const eZorder& z,
650        const eIsFg& isFg, const eDest& dest, Rotator **rot) {
651
652    private_handle_t *hnd = (private_handle_t *)layer->handle;
653    if(!hnd) {
654        ALOGE("%s: layer handle is NULL", __FUNCTION__);
655        return -1;
656    }
657
658    hwc_rect_t crop = layer->sourceCrop;
659    hwc_rect_t dst = layer->displayFrame;
660    int transform = layer->transform;
661    eTransform orient = static_cast<eTransform>(transform);
662    int downscale = 0;
663    int rotFlags = ovutils::ROT_FLAGS_NONE;
664    Whf whf(hnd->width, hnd->height,
665            getMdpFormat(hnd->format), hnd->size);
666
667    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
668                ctx->mMDP.version < qdutils::MDSS_V5) {
669        downscale = getDownscaleFactor(
670                crop.right - crop.left,
671                crop.bottom - crop.top,
672                dst.right - dst.left,
673                dst.bottom - dst.top);
674        if(downscale) {
675            rotFlags = ROT_DOWNSCALE_ENABLED;
676        }
677    }
678
679    setMdpFlags(layer, mdpFlags, downscale);
680    trimLayer(ctx, dpy, transform, crop, dst);
681
682    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
683            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
684        *rot = ctx->mRotMgr->getNext();
685        if(*rot == NULL) return -1;
686        //Configure rotator for pre-rotation
687        if(configRotator(*rot, whf, mdpFlags, orient, downscale) < 0)
688            return -1;
689        whf.format = (*rot)->getDstFormat();
690        updateSource(orient, whf, crop);
691        rotFlags |= ovutils::ROT_PREROTATED;
692    }
693
694    //For the mdp, since either we are pre-rotating or MDP does flips
695    orient = OVERLAY_TRANSFORM_0;
696    transform = 0;
697
698    PipeArgs parg(mdpFlags, whf, z, isFg, static_cast<eRotFlags>(rotFlags));
699    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, dest) < 0) {
700        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
701        return -1;
702    }
703    return 0;
704}
705
706int configureHighRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
707        const int& dpy, eMdpFlags& mdpFlagsL, const eZorder& z,
708        const eIsFg& isFg, const eDest& lDest, const eDest& rDest,
709        Rotator **rot) {
710    private_handle_t *hnd = (private_handle_t *)layer->handle;
711    if(!hnd) {
712        ALOGE("%s: layer handle is NULL", __FUNCTION__);
713        return -1;
714    }
715
716    int hw_w = ctx->dpyAttr[dpy].xres;
717    int hw_h = ctx->dpyAttr[dpy].yres;
718    hwc_rect_t crop = layer->sourceCrop;
719    hwc_rect_t dst = layer->displayFrame;
720    int transform = layer->transform;
721    eTransform orient = static_cast<eTransform>(transform);
722    const int downscale = 0;
723    int rotFlags = ROT_FLAGS_NONE;
724
725    Whf whf(hnd->width, hnd->height,
726            getMdpFormat(hnd->format), hnd->size);
727
728    setMdpFlags(layer, mdpFlagsL);
729    trimLayer(ctx, dpy, transform, crop, dst);
730
731    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
732        (*rot) = ctx->mRotMgr->getNext();
733        if((*rot) == NULL) return -1;
734        //Configure rotator for pre-rotation
735        if(configRotator(*rot, whf, mdpFlagsL, orient, downscale) < 0)
736            return -1;
737        whf.format = (*rot)->getDstFormat();
738        updateSource(orient, whf, crop);
739        rotFlags |= ROT_PREROTATED;
740    }
741
742    eMdpFlags mdpFlagsR = mdpFlagsL;
743    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
744
745    hwc_rect_t tmp_cropL, tmp_dstL;
746    hwc_rect_t tmp_cropR, tmp_dstR;
747
748    if(lDest != OV_INVALID) {
749        tmp_cropL = crop;
750        tmp_dstL = dst;
751        hwc_rect_t scissor = {0, 0, hw_w/2, hw_h };
752        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
753    }
754    if(rDest != OV_INVALID) {
755        tmp_cropR = crop;
756        tmp_dstR = dst;
757        hwc_rect_t scissor = {hw_w/2, 0, hw_w, hw_h };
758        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
759    }
760
761    //When buffer is flipped, contents of mixer config also needs to swapped.
762    //Not needed if the layer is confined to one half of the screen.
763    //If rotator has been used then it has also done the flips, so ignore them.
764    if((orient & OVERLAY_TRANSFORM_FLIP_V) && lDest != OV_INVALID
765            && rDest != OV_INVALID && rot == NULL) {
766        hwc_rect_t new_cropR;
767        new_cropR.left = tmp_cropL.left;
768        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
769
770        hwc_rect_t new_cropL;
771        new_cropL.left  = new_cropR.right;
772        new_cropL.right = tmp_cropR.right;
773
774        tmp_cropL.left =  new_cropL.left;
775        tmp_cropL.right =  new_cropL.right;
776
777        tmp_cropR.left = new_cropR.left;
778        tmp_cropR.right =  new_cropR.right;
779
780    }
781
782    //For the mdp, since either we are pre-rotating or MDP does flips
783    orient = OVERLAY_TRANSFORM_0;
784    transform = 0;
785
786    //configure left mixer
787    if(lDest != OV_INVALID) {
788        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
789                static_cast<eRotFlags>(rotFlags));
790        if(configMdp(ctx->mOverlay, pargL, orient,
791                tmp_cropL, tmp_dstL, lDest) < 0) {
792            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
793            return -1;
794        }
795    }
796
797    //configure right mixer
798    if(rDest != OV_INVALID) {
799        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
800                static_cast<eRotFlags>(rotFlags));
801        if(configMdp(ctx->mOverlay, pargR, orient,
802                tmp_cropR, tmp_dstR, rDest) < 0) {
803            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
804            return -1;
805        }
806    }
807
808    return 0;
809}
810
811void LayerCache::resetLayerCache(int num) {
812    for(uint32_t i = 0; i < MAX_NUM_LAYERS; i++) {
813        hnd[i] = NULL;
814    }
815    numHwLayers = num;
816}
817
818void LayerCache::updateLayerCache(hwc_display_contents_1_t* list) {
819
820    int numFbLayers = 0;
821    int numCacheableLayers = 0;
822
823    canUseLayerCache = false;
824    //Bail if geometry changed or num of layers changed
825    if(list->flags & HWC_GEOMETRY_CHANGED ||
826       list->numHwLayers != numHwLayers ) {
827        resetLayerCache(list->numHwLayers);
828        return;
829    }
830
831    for(uint32_t i = 0; i < list->numHwLayers; i++) {
832        //Bail on skip layers
833        if(list->hwLayers[i].flags & HWC_SKIP_LAYER) {
834            resetLayerCache(list->numHwLayers);
835            return;
836        }
837
838        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER) {
839            numFbLayers++;
840            if(hnd[i] == NULL) {
841                hnd[i] = list->hwLayers[i].handle;
842            } else if (hnd[i] ==
843                       list->hwLayers[i].handle) {
844                numCacheableLayers++;
845            } else {
846                hnd[i] = NULL;
847                return;
848            }
849        } else {
850            hnd[i] = NULL;
851        }
852    }
853    if(numFbLayers == numCacheableLayers)
854        canUseLayerCache = true;
855
856    //XXX: The marking part is separate, if MDP comp wants
857    // to use it in the future. Right now getting MDP comp
858    // to use this is more trouble than it is worth.
859    markCachedLayersAsOverlay(list);
860}
861
862void LayerCache::markCachedLayersAsOverlay(hwc_display_contents_1_t* list) {
863    //This optimization only works if ALL the layer handles
864    //that were on the framebuffer didn't change.
865    if(canUseLayerCache){
866        for(uint32_t i = 0; i < list->numHwLayers; i++) {
867            if (list->hwLayers[i].handle &&
868                list->hwLayers[i].handle == hnd[i] &&
869                list->hwLayers[i].compositionType != HWC_FRAMEBUFFER_TARGET)
870            {
871                list->hwLayers[i].compositionType = HWC_OVERLAY;
872            }
873        }
874    }
875}
876
877};//namespace qhwc
878