hwc_utils.cpp revision 0edd0eba442e8b6db2fc2758ecd48e888d251d02 
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 <binder/IServiceManager.h>
23#include <EGL/egl.h>
24#include <cutils/properties.h>
25#include <gralloc_priv.h>
26#include <overlay.h>
27#include <overlayRotator.h>
28#include "hwc_utils.h"
29#include "hwc_mdpcomp.h"
30#include "hwc_fbupdate.h"
31#include "hwc_video.h"
32#include "mdp_version.h"
33#include "hwc_copybit.h"
34#include "external.h"
35#include "hwc_qclient.h"
36#include "QService.h"
37#include "comptype.h"
38
39using namespace qClient;
40using namespace qService;
41using namespace android;
42using namespace overlay;
43using namespace overlay::utils;
44namespace ovutils = overlay::utils;
45
46namespace qhwc {
47
48static int openFramebufferDevice(hwc_context_t *ctx)
49{
50    struct fb_fix_screeninfo finfo;
51    struct fb_var_screeninfo info;
52
53    int fb_fd = openFb(HWC_DISPLAY_PRIMARY);
54
55    if (ioctl(fb_fd, FBIOGET_VSCREENINFO, &info) == -1)
56        return -errno;
57
58    if (int(info.width) <= 0 || int(info.height) <= 0) {
59        // the driver doesn't return that information
60        // default to 160 dpi
61        info.width  = ((info.xres * 25.4f)/160.0f + 0.5f);
62        info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
63    }
64
65    float xdpi = (info.xres * 25.4f) / info.width;
66    float ydpi = (info.yres * 25.4f) / info.height;
67
68#ifdef MSMFB_METADATA_GET
69    struct msmfb_metadata metadata;
70    memset(&metadata, 0 , sizeof(metadata));
71    metadata.op = metadata_op_frame_rate;
72
73    if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) {
74        ALOGE("Error retrieving panel frame rate");
75        return -errno;
76    }
77
78    float fps  = metadata.data.panel_frame_rate;
79#else
80    //XXX: Remove reserved field usage on all baselines
81    //The reserved[3] field is used to store FPS by the driver.
82    float fps  = info.reserved[3] & 0xFF;
83#endif
84
85    if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo) == -1)
86        return -errno;
87
88    if (finfo.smem_len <= 0)
89        return -errno;
90
91    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = fb_fd;
92    //xres, yres may not be 32 aligned
93    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].stride = finfo.line_length /(info.xres/8);
94    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = info.xres;
95    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = info.yres;
96    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = xdpi;
97    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ydpi;
98    ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period = 1000000000l / fps;
99
100    return 0;
101}
102
103void initContext(hwc_context_t *ctx)
104{
105    if(openFramebufferDevice(ctx) < 0) {
106        ALOGE("%s: failed to open framebuffer!!", __FUNCTION__);
107    }
108
109    overlay::Overlay::initOverlay();
110    ctx->mOverlay = overlay::Overlay::getInstance();
111    ctx->mRotMgr = new RotMgr();
112    ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
113    ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
114    ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
115    overlay::Overlay::initOverlay();
116    ctx->mOverlay = overlay::Overlay::getInstance();
117    ctx->mRotMgr = new RotMgr();
118
119    //Is created and destroyed only once for primary
120    //For external it could get created and destroyed multiple times depending
121    //on what external we connect to.
122    ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
123        IFBUpdate::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
124        HWC_DISPLAY_PRIMARY);
125
126    ctx->mVidOv[HWC_DISPLAY_PRIMARY] =
127        IVideoOverlay::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
128        HWC_DISPLAY_PRIMARY);
129
130    // Check if the target supports copybit compostion (dyn/mdp/c2d) to
131    // decide if we need to open the copybit module.
132    int compositionType =
133        qdutils::QCCompositionType::getInstance().getCompositionType();
134
135    if (compositionType & (qdutils::COMPOSITION_TYPE_DYN |
136                           qdutils::COMPOSITION_TYPE_MDP |
137                           qdutils::COMPOSITION_TYPE_C2D)) {
138            ctx->mCopyBit[HWC_DISPLAY_PRIMARY] = new CopyBit();
139    }
140
141    ctx->mExtDisplay = new ExternalDisplay(ctx);
142    for (uint32_t i = 0; i < MAX_DISPLAYS; i++)
143        ctx->mLayerCache[i] = new LayerCache();
144    ctx->mMDPComp = MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres);
145    MDPComp::init(ctx);
146
147    pthread_mutex_init(&(ctx->vstate.lock), NULL);
148    pthread_cond_init(&(ctx->vstate.cond), NULL);
149    ctx->vstate.enable = false;
150    ctx->vstate.fakevsync = false;
151    ctx->mExtDispConfiguring = false;
152
153    //Right now hwc starts the service but anybody could do it, or it could be
154    //independent process as well.
155    QService::init();
156    sp<IQClient> client = new QClient(ctx);
157    interface_cast<IQService>(
158            defaultServiceManager()->getService(
159            String16("display.qservice")))->connect(client);
160
161    ALOGI("Initializing Qualcomm Hardware Composer");
162    ALOGI("MDP version: %d", ctx->mMDP.version);
163}
164
165void closeContext(hwc_context_t *ctx)
166{
167    if(ctx->mOverlay) {
168        delete ctx->mOverlay;
169        ctx->mOverlay = NULL;
170    }
171
172    if(ctx->mRotMgr) {
173        delete ctx->mRotMgr;
174        ctx->mRotMgr = NULL;
175    }
176
177    for(int i = 0; i < MAX_DISPLAYS; i++) {
178        if(ctx->mCopyBit[i]) {
179            delete ctx->mCopyBit[i];
180            ctx->mCopyBit[i] = NULL;
181        }
182    }
183
184    if(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd) {
185        close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
186        ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
187    }
188
189    if(ctx->mExtDisplay) {
190        delete ctx->mExtDisplay;
191        ctx->mExtDisplay = NULL;
192    }
193
194    for(int i = 0; i < MAX_DISPLAYS; i++) {
195        if(ctx->mFBUpdate[i]) {
196            delete ctx->mFBUpdate[i];
197            ctx->mFBUpdate[i] = NULL;
198        }
199        if(ctx->mVidOv[i]) {
200            delete ctx->mVidOv[i];
201            ctx->mVidOv[i] = NULL;
202        }
203    }
204
205    if(ctx->mMDPComp) {
206        delete ctx->mMDPComp;
207        ctx->mMDPComp = NULL;
208    }
209
210    pthread_mutex_destroy(&(ctx->vstate.lock));
211    pthread_cond_destroy(&(ctx->vstate.cond));
212}
213
214
215void dumpsys_log(android::String8& buf, const char* fmt, ...)
216{
217    va_list varargs;
218    va_start(varargs, fmt);
219    buf.appendFormatV(fmt, varargs);
220    va_end(varargs);
221}
222
223/* Calculates the destination position based on the action safe rectangle */
224void getActionSafePosition(hwc_context_t *ctx, int dpy, uint32_t& x,
225                           uint32_t& y, uint32_t& w, uint32_t& h) {
226
227    // if external supports underscan, do nothing
228    // it will be taken care in the driver
229    if(ctx->mExtDisplay->isCEUnderscanSupported())
230        return;
231
232    float wRatio = 1.0;
233    float hRatio = 1.0;
234    float xRatio = 1.0;
235    float yRatio = 1.0;
236
237    float fbWidth = ctx->dpyAttr[dpy].xres;
238    float fbHeight = ctx->dpyAttr[dpy].yres;
239
240    float asX = 0;
241    float asY = 0;
242    float asW = fbWidth;
243    float asH= fbHeight;
244    char value[PROPERTY_VALUE_MAX];
245
246    // Apply action safe parameters
247    property_get("hw.actionsafe.width", value, "0");
248    int asWidthRatio = atoi(value);
249    property_get("hw.actionsafe.height", value, "0");
250    int asHeightRatio = atoi(value);
251    // based on the action safe ratio, get the Action safe rectangle
252    asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);
253    asH = fbHeight * (1.0f -  asHeightRatio / 100.0f);
254    asX = (fbWidth - asW) / 2;
255    asY = (fbHeight - asH) / 2;
256
257    // calculate the position ratio
258    xRatio = (float)x/fbWidth;
259    yRatio = (float)y/fbHeight;
260    wRatio = (float)w/fbWidth;
261    hRatio = (float)h/fbHeight;
262
263    //Calculate the position...
264    x = (xRatio * asW) + asX;
265    y = (yRatio * asH) + asY;
266    w = (wRatio * asW);
267    h = (hRatio * asH);
268
269    return;
270}
271
272bool needsScaling(hwc_layer_1_t const* layer) {
273    int dst_w, dst_h, src_w, src_h;
274
275    hwc_rect_t displayFrame  = layer->displayFrame;
276    hwc_rect_t sourceCrop = layer->sourceCrop;
277
278    dst_w = displayFrame.right - displayFrame.left;
279    dst_h = displayFrame.bottom - displayFrame.top;
280
281    src_w = sourceCrop.right - sourceCrop.left;
282    src_h = sourceCrop.bottom - sourceCrop.top;
283
284    if(((src_w != dst_w) || (src_h != dst_h)))
285        return true;
286
287    return false;
288}
289
290bool isAlphaScaled(hwc_layer_1_t const* layer) {
291    if(needsScaling(layer) && isAlphaPresent(layer)) {
292        return true;
293    }
294    return false;
295}
296
297bool isAlphaPresent(hwc_layer_1_t const* layer) {
298    private_handle_t *hnd = (private_handle_t *)layer->handle;
299    if(hnd) {
300        int format = hnd->format;
301        switch(format) {
302        case HAL_PIXEL_FORMAT_RGBA_8888:
303        case HAL_PIXEL_FORMAT_BGRA_8888:
304            // In any more formats with Alpha go here..
305            return true;
306        default : return false;
307        }
308    }
309    return false;
310}
311
312void setListStats(hwc_context_t *ctx,
313        const hwc_display_contents_1_t *list, int dpy) {
314
315    ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
316    ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
317    ctx->listStats[dpy].skipCount = 0;
318    ctx->listStats[dpy].needsAlphaScale = false;
319    ctx->listStats[dpy].preMultipliedAlpha = false;
320    ctx->listStats[dpy].yuvCount = 0;
321
322    for (size_t i = 0; i < list->numHwLayers; i++) {
323        hwc_layer_1_t const* layer = &list->hwLayers[i];
324        private_handle_t *hnd = (private_handle_t *)layer->handle;
325
326        //reset stored yuv index
327        ctx->listStats[dpy].yuvIndices[i] = -1;
328
329        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
330            continue;
331        //We disregard FB being skip for now! so the else if
332        } else if (isSkipLayer(&list->hwLayers[i])) {
333            ctx->listStats[dpy].skipCount++;
334        } else if (UNLIKELY(isYuvBuffer(hnd))) {
335            int& yuvCount = ctx->listStats[dpy].yuvCount;
336            ctx->listStats[dpy].yuvIndices[yuvCount] = i;
337            yuvCount++;
338
339            if(layer->transform & HWC_TRANSFORM_ROT_90)
340                ctx->mNeedsRotator = true;
341        }
342        if(layer->blending == HWC_BLENDING_PREMULT)
343            ctx->listStats[dpy].preMultipliedAlpha = true;
344
345        if(!ctx->listStats[dpy].needsAlphaScale)
346            ctx->listStats[dpy].needsAlphaScale = isAlphaScaled(layer);
347    }
348}
349
350
351static inline void calc_cut(float& leftCutRatio, float& topCutRatio,
352        float& rightCutRatio, float& bottomCutRatio, int orient) {
353    if(orient & HAL_TRANSFORM_FLIP_H) {
354        swap(leftCutRatio, rightCutRatio);
355    }
356    if(orient & HAL_TRANSFORM_FLIP_V) {
357        swap(topCutRatio, bottomCutRatio);
358    }
359    if(orient & HAL_TRANSFORM_ROT_90) {
360        //Anti clock swapping
361        float tmpCutRatio = leftCutRatio;
362        leftCutRatio = topCutRatio;
363        topCutRatio = rightCutRatio;
364        rightCutRatio = bottomCutRatio;
365        bottomCutRatio = tmpCutRatio;
366    }
367}
368
369bool isSecuring(hwc_context_t* ctx) {
370    if((ctx->mMDP.version < qdutils::MDSS_V5) &&
371       (ctx->mMDP.version > qdutils::MDP_V3_0) &&
372        ctx->mSecuring) {
373        return true;
374    }
375    return false;
376}
377
378bool isSecureModePolicy(int mdpVersion) {
379    if (mdpVersion < qdutils::MDSS_V5)
380        return true;
381    else
382        return false;
383}
384
385//Crops source buffer against destination and FB boundaries
386void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
387                          const hwc_rect_t& scissor, int orient) {
388
389    int& crop_l = crop.left;
390    int& crop_t = crop.top;
391    int& crop_r = crop.right;
392    int& crop_b = crop.bottom;
393    int crop_w = crop.right - crop.left;
394    int crop_h = crop.bottom - crop.top;
395
396    int& dst_l = dst.left;
397    int& dst_t = dst.top;
398    int& dst_r = dst.right;
399    int& dst_b = dst.bottom;
400    int dst_w = abs(dst.right - dst.left);
401    int dst_h = abs(dst.bottom - dst.top);
402
403    const int& sci_l = scissor.left;
404    const int& sci_t = scissor.top;
405    const int& sci_r = scissor.right;
406    const int& sci_b = scissor.bottom;
407    int sci_w = abs(sci_r - sci_l);
408    int sci_h = abs(sci_b - sci_t);
409
410    float leftCutRatio = 0.0f, rightCutRatio = 0.0f, topCutRatio = 0.0f,
411            bottomCutRatio = 0.0f;
412
413    if(dst_l < sci_l) {
414        leftCutRatio = (float)(sci_l - dst_l) / (float)dst_w;
415        dst_l = sci_l;
416    }
417
418    if(dst_r > sci_r) {
419        rightCutRatio = (float)(dst_r - sci_r) / (float)dst_w;
420        dst_r = sci_r;
421    }
422
423    if(dst_t < sci_t) {
424        topCutRatio = (float)(sci_t - dst_t) / (float)dst_h;
425        dst_t = sci_t;
426    }
427
428    if(dst_b > sci_b) {
429        bottomCutRatio = (float)(dst_b - sci_b) / (float)dst_h;
430        dst_b = sci_b;
431    }
432
433    calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
434    crop_l += crop_w * leftCutRatio;
435    crop_t += crop_h * topCutRatio;
436    crop_r -= crop_w * rightCutRatio;
437    crop_b -= crop_h * bottomCutRatio;
438}
439
440void getNonWormholeRegion(hwc_display_contents_1_t* list,
441                              hwc_rect_t& nwr)
442{
443    uint32_t last = list->numHwLayers - 1;
444    hwc_rect_t fbDisplayFrame = list->hwLayers[last].displayFrame;
445    //Initiliaze nwr to first frame
446    nwr.left =  list->hwLayers[0].displayFrame.left;
447    nwr.top =  list->hwLayers[0].displayFrame.top;
448    nwr.right =  list->hwLayers[0].displayFrame.right;
449    nwr.bottom =  list->hwLayers[0].displayFrame.bottom;
450
451    for (uint32_t i = 1; i < last; i++) {
452        hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
453        nwr.left   = min(nwr.left, displayFrame.left);
454        nwr.top    = min(nwr.top, displayFrame.top);
455        nwr.right  = max(nwr.right, displayFrame.right);
456        nwr.bottom = max(nwr.bottom, displayFrame.bottom);
457    }
458
459    //Intersect with the framebuffer
460    nwr.left   = max(nwr.left, fbDisplayFrame.left);
461    nwr.top    = max(nwr.top, fbDisplayFrame.top);
462    nwr.right  = min(nwr.right, fbDisplayFrame.right);
463    nwr.bottom = min(nwr.bottom, fbDisplayFrame.bottom);
464
465}
466
467bool isExternalActive(hwc_context_t* ctx) {
468    return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
469}
470
471void closeAcquireFds(hwc_display_contents_1_t* list) {
472    for(uint32_t i = 0; list && i < list->numHwLayers; i++) {
473        //Close the acquireFenceFds
474        //HWC_FRAMEBUFFER are -1 already by SF, rest we close.
475        if(list->hwLayers[i].acquireFenceFd >= 0) {
476            close(list->hwLayers[i].acquireFenceFd);
477            list->hwLayers[i].acquireFenceFd = -1;
478        }
479    }
480}
481
482int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
483                                                        int fd) {
484    int ret = 0;
485    struct mdp_buf_sync data;
486    int acquireFd[MAX_NUM_LAYERS];
487    int count = 0;
488    int releaseFd = -1;
489    int fbFd = -1;
490    memset(&data, 0, sizeof(data));
491    bool swapzero = false;
492    data.flags = MDP_BUF_SYNC_FLAG_WAIT;
493    data.acq_fen_fd = acquireFd;
494    data.rel_fen_fd = &releaseFd;
495    char property[PROPERTY_VALUE_MAX];
496    if(property_get("debug.egl.swapinterval", property, "1") > 0) {
497        if(atoi(property) == 0)
498            swapzero = true;
499    }
500
501    //Accumulate acquireFenceFds
502    for(uint32_t i = 0; i < list->numHwLayers; i++) {
503        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
504                        list->hwLayers[i].acquireFenceFd != -1) {
505            if(UNLIKELY(swapzero))
506                acquireFd[count++] = -1;
507            else
508                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
509        }
510        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
511            if(UNLIKELY(swapzero))
512                acquireFd[count++] = -1;
513            else if(fd != -1) {
514                //set the acquireFD from fd - which is coming from c2d
515                acquireFd[count++] = fd;
516                // Buffer sync IOCTL should be async when using c2d fence is
517                // used
518                data.flags &= ~MDP_BUF_SYNC_FLAG_WAIT;
519            } else if(list->hwLayers[i].acquireFenceFd != -1)
520                acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
521        }
522    }
523
524    data.acq_fen_fd_cnt = count;
525    fbFd = ctx->dpyAttr[dpy].fd;
526    //Waits for acquire fences, returns a release fence
527    if(LIKELY(!swapzero)) {
528        uint64_t start = systemTime();
529        ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
530        ALOGD_IF(HWC_UTILS_DEBUG, "%s: time taken for MSMFB_BUFFER_SYNC IOCTL = %d",
531                            __FUNCTION__, (size_t) ns2ms(systemTime() - start));
532    }
533
534    if(ret < 0) {
535        ALOGE("ioctl MSMFB_BUFFER_SYNC failed, err=%s",
536                strerror(errno));
537    }
538
539    for(uint32_t i = 0; i < list->numHwLayers; i++) {
540        if(list->hwLayers[i].compositionType == HWC_OVERLAY ||
541           list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
542            //Populate releaseFenceFds.
543            if(UNLIKELY(swapzero))
544                list->hwLayers[i].releaseFenceFd = -1;
545            else
546                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
547        }
548    }
549
550    if(fd >= 0) {
551        close(fd);
552        fd = -1;
553    }
554
555    if (ctx->mCopyBit[dpy])
556        ctx->mCopyBit[dpy]->setReleaseFd(releaseFd);
557    if(UNLIKELY(swapzero)){
558        list->retireFenceFd = -1;
559        close(releaseFd);
560    } else {
561        list->retireFenceFd = releaseFd;
562    }
563
564    return ret;
565}
566
567void trimLayer(hwc_context_t *ctx, const int& dpy, const int& transform,
568        hwc_rect_t& crop, hwc_rect_t& dst) {
569    int hw_w = ctx->dpyAttr[dpy].xres;
570    int hw_h = ctx->dpyAttr[dpy].yres;
571    if(dst.left < 0 || dst.top < 0 ||
572            dst.right > hw_w || dst.bottom > hw_h) {
573        hwc_rect_t scissor = {0, 0, hw_w, hw_h };
574        qhwc::calculate_crop_rects(crop, dst, scissor, transform);
575    }
576}
577
578void setMdpFlags(hwc_layer_1_t *layer,
579        ovutils::eMdpFlags &mdpFlags,
580        int rotDownscale) {
581    private_handle_t *hnd = (private_handle_t *)layer->handle;
582    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
583    const int& transform = layer->transform;
584
585    if(layer->blending == HWC_BLENDING_PREMULT) {
586        ovutils::setMdpFlags(mdpFlags,
587                ovutils::OV_MDP_BLEND_FG_PREMULT);
588    }
589
590    if(isYuvBuffer(hnd)) {
591        if(isSecureBuffer(hnd)) {
592            ovutils::setMdpFlags(mdpFlags,
593                    ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
594        }
595        if(metadata && (metadata->operation & PP_PARAM_INTERLACED) &&
596                metadata->interlaced) {
597            ovutils::setMdpFlags(mdpFlags,
598                    ovutils::OV_MDP_DEINTERLACE);
599        }
600        //Pre-rotation will be used using rotator.
601        if(transform & HWC_TRANSFORM_ROT_90) {
602            ovutils::setMdpFlags(mdpFlags,
603                    ovutils::OV_MDP_SOURCE_ROTATED_90);
604        }
605    }
606
607    //No 90 component and no rot-downscale then flips done by MDP
608    //If we use rot then it might as well do flips
609    if(!(layer->transform & HWC_TRANSFORM_ROT_90) && !rotDownscale) {
610        if(layer->transform & HWC_TRANSFORM_FLIP_H) {
611            ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_FLIP_H);
612        }
613
614        if(layer->transform & HWC_TRANSFORM_FLIP_V) {
615            ovutils::setMdpFlags(mdpFlags,  ovutils::OV_MDP_FLIP_V);
616        }
617    }
618
619    if(metadata &&
620        ((metadata->operation & PP_PARAM_HSIC)
621        || (metadata->operation & PP_PARAM_IGC)
622        || (metadata->operation & PP_PARAM_SHARP2))) {
623        ovutils::setMdpFlags(mdpFlags, ovutils::OV_MDP_PP_EN);
624    }
625}
626
627static inline int configRotator(Rotator *rot, const Whf& whf,
628        const eMdpFlags& mdpFlags, const eTransform& orient,
629        const int& downscale) {
630    rot->setSource(whf);
631    rot->setFlags(mdpFlags);
632    rot->setTransform(orient);
633    rot->setDownscale(downscale);
634    if(!rot->commit()) return -1;
635    return 0;
636}
637
638static inline int configMdp(Overlay *ov, const PipeArgs& parg,
639        const eTransform& orient, const hwc_rect_t& crop,
640        const hwc_rect_t& pos, const MetaData_t *metadata,
641        const eDest& dest) {
642    ov->setSource(parg, dest);
643    ov->setTransform(orient, dest);
644
645    int crop_w = crop.right - crop.left;
646    int crop_h = crop.bottom - crop.top;
647    Dim dcrop(crop.left, crop.top, crop_w, crop_h);
648    ov->setCrop(dcrop, dest);
649
650    int posW = pos.right - pos.left;
651    int posH = pos.bottom - pos.top;
652    Dim position(pos.left, pos.top, posW, posH);
653    ov->setPosition(position, dest);
654
655    if (metadata)
656        ov->setVisualParams(*metadata, dest);
657
658    if (!ov->commit(dest)) {
659        return -1;
660    }
661    return 0;
662}
663
664static inline void updateSource(eTransform& orient, Whf& whf,
665        hwc_rect_t& crop) {
666    Dim srcCrop(crop.left, crop.top,
667            crop.right - crop.left,
668            crop.bottom - crop.top);
669    //getMdpOrient will switch the flips if the source is 90 rotated.
670    //Clients in Android dont factor in 90 rotation while deciding the flip.
671    orient = static_cast<eTransform>(ovutils::getMdpOrient(orient));
672    preRotateSource(orient, whf, srcCrop);
673    crop.left = srcCrop.x;
674    crop.top = srcCrop.y;
675    crop.right = srcCrop.x + srcCrop.w;
676    crop.bottom = srcCrop.y + srcCrop.h;
677}
678
679int configureLowRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
680        const int& dpy, eMdpFlags& mdpFlags, const eZorder& z,
681        const eIsFg& isFg, const eDest& dest, Rotator **rot) {
682
683    private_handle_t *hnd = (private_handle_t *)layer->handle;
684    if(!hnd) {
685        ALOGE("%s: layer handle is NULL", __FUNCTION__);
686        return -1;
687    }
688
689    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
690
691    hwc_rect_t crop = layer->sourceCrop;
692    hwc_rect_t dst = layer->displayFrame;
693    int transform = layer->transform;
694    eTransform orient = static_cast<eTransform>(transform);
695    int downscale = 0;
696    int rotFlags = ovutils::ROT_FLAGS_NONE;
697    Whf whf(hnd->width, hnd->height,
698            getMdpFormat(hnd->format), hnd->size);
699
700    if(isYuvBuffer(hnd) && ctx->mMDP.version >= qdutils::MDP_V4_2 &&
701                ctx->mMDP.version < qdutils::MDSS_V5) {
702        downscale = getDownscaleFactor(
703                crop.right - crop.left,
704                crop.bottom - crop.top,
705                dst.right - dst.left,
706                dst.bottom - dst.top);
707        if(downscale) {
708            rotFlags = ROT_DOWNSCALE_ENABLED;
709        }
710    }
711
712    setMdpFlags(layer, mdpFlags, downscale);
713    trimLayer(ctx, dpy, transform, crop, dst);
714
715    if(isYuvBuffer(hnd) && //if 90 component or downscale, use rot
716            ((transform & HWC_TRANSFORM_ROT_90) || downscale)) {
717        *rot = ctx->mRotMgr->getNext();
718        if(*rot == NULL) return -1;
719        //Configure rotator for pre-rotation
720        if(configRotator(*rot, whf, mdpFlags, orient, downscale) < 0)
721            return -1;
722        whf.format = (*rot)->getDstFormat();
723        updateSource(orient, whf, crop);
724        rotFlags |= ovutils::ROT_PREROTATED;
725    }
726
727    //For the mdp, since either we are pre-rotating or MDP does flips
728    orient = OVERLAY_TRANSFORM_0;
729    transform = 0;
730
731    PipeArgs parg(mdpFlags, whf, z, isFg, static_cast<eRotFlags>(rotFlags));
732    if(configMdp(ctx->mOverlay, parg, orient, crop, dst, metadata, dest) < 0) {
733        ALOGE("%s: commit failed for low res panel", __FUNCTION__);
734        return -1;
735    }
736    return 0;
737}
738
739int configureHighRes(hwc_context_t *ctx, hwc_layer_1_t *layer,
740        const int& dpy, eMdpFlags& mdpFlagsL, const eZorder& z,
741        const eIsFg& isFg, const eDest& lDest, const eDest& rDest,
742        Rotator **rot) {
743    private_handle_t *hnd = (private_handle_t *)layer->handle;
744    if(!hnd) {
745        ALOGE("%s: layer handle is NULL", __FUNCTION__);
746        return -1;
747    }
748
749    MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
750
751    int hw_w = ctx->dpyAttr[dpy].xres;
752    int hw_h = ctx->dpyAttr[dpy].yres;
753    hwc_rect_t crop = layer->sourceCrop;
754    hwc_rect_t dst = layer->displayFrame;
755    int transform = layer->transform;
756    eTransform orient = static_cast<eTransform>(transform);
757    const int downscale = 0;
758    int rotFlags = ROT_FLAGS_NONE;
759
760    Whf whf(hnd->width, hnd->height,
761            getMdpFormat(hnd->format), hnd->size);
762
763    setMdpFlags(layer, mdpFlagsL);
764    trimLayer(ctx, dpy, transform, crop, dst);
765
766    if(isYuvBuffer(hnd) && (transform & HWC_TRANSFORM_ROT_90)) {
767        (*rot) = ctx->mRotMgr->getNext();
768        if((*rot) == NULL) return -1;
769        //Configure rotator for pre-rotation
770        if(configRotator(*rot, whf, mdpFlagsL, orient, downscale) < 0)
771            return -1;
772        whf.format = (*rot)->getDstFormat();
773        updateSource(orient, whf, crop);
774        rotFlags |= ROT_PREROTATED;
775    }
776
777    eMdpFlags mdpFlagsR = mdpFlagsL;
778    setMdpFlags(mdpFlagsR, OV_MDSS_MDP_RIGHT_MIXER);
779
780    hwc_rect_t tmp_cropL, tmp_dstL;
781    hwc_rect_t tmp_cropR, tmp_dstR;
782
783    if(lDest != OV_INVALID) {
784        tmp_cropL = crop;
785        tmp_dstL = dst;
786        hwc_rect_t scissor = {0, 0, hw_w/2, hw_h };
787        qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
788    }
789    if(rDest != OV_INVALID) {
790        tmp_cropR = crop;
791        tmp_dstR = dst;
792        hwc_rect_t scissor = {hw_w/2, 0, hw_w, hw_h };
793        qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
794    }
795
796    //When buffer is flipped, contents of mixer config also needs to swapped.
797    //Not needed if the layer is confined to one half of the screen.
798    //If rotator has been used then it has also done the flips, so ignore them.
799    if((orient & OVERLAY_TRANSFORM_FLIP_V) && lDest != OV_INVALID
800            && rDest != OV_INVALID && rot == NULL) {
801        hwc_rect_t new_cropR;
802        new_cropR.left = tmp_cropL.left;
803        new_cropR.right = new_cropR.left + (tmp_cropR.right - tmp_cropR.left);
804
805        hwc_rect_t new_cropL;
806        new_cropL.left  = new_cropR.right;
807        new_cropL.right = tmp_cropR.right;
808
809        tmp_cropL.left =  new_cropL.left;
810        tmp_cropL.right =  new_cropL.right;
811
812        tmp_cropR.left = new_cropR.left;
813        tmp_cropR.right =  new_cropR.right;
814
815    }
816
817    //For the mdp, since either we are pre-rotating or MDP does flips
818    orient = OVERLAY_TRANSFORM_0;
819    transform = 0;
820
821    //configure left mixer
822    if(lDest != OV_INVALID) {
823        PipeArgs pargL(mdpFlagsL, whf, z, isFg,
824                static_cast<eRotFlags>(rotFlags));
825        if(configMdp(ctx->mOverlay, pargL, orient,
826                tmp_cropL, tmp_dstL, metadata, lDest) < 0) {
827            ALOGE("%s: commit failed for left mixer config", __FUNCTION__);
828            return -1;
829        }
830    }
831
832    //configure right mixer
833    if(rDest != OV_INVALID) {
834        PipeArgs pargR(mdpFlagsR, whf, z, isFg,
835                static_cast<eRotFlags>(rotFlags));
836        tmp_dstR.right = tmp_dstR.right - tmp_dstR.left;
837        tmp_dstR.left = 0;
838        if(configMdp(ctx->mOverlay, pargR, orient,
839                tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
840            ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
841            return -1;
842        }
843    }
844
845    return 0;
846}
847
848void LayerCache::resetLayerCache(int num) {
849    for(uint32_t i = 0; i < MAX_NUM_LAYERS; i++) {
850        hnd[i] = NULL;
851    }
852    numHwLayers = num;
853}
854
855void LayerCache::updateLayerCache(hwc_display_contents_1_t* list) {
856
857    int numFbLayers = 0;
858    int numCacheableLayers = 0;
859
860    canUseLayerCache = false;
861    //Bail if geometry changed or num of layers changed
862    if(list->flags & HWC_GEOMETRY_CHANGED ||
863       list->numHwLayers != numHwLayers ) {
864        resetLayerCache(list->numHwLayers);
865        return;
866    }
867
868    for(uint32_t i = 0; i < list->numHwLayers; i++) {
869        //Bail on skip layers
870        if(list->hwLayers[i].flags & HWC_SKIP_LAYER) {
871            resetLayerCache(list->numHwLayers);
872            return;
873        }
874
875        if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER) {
876            numFbLayers++;
877            if(hnd[i] == NULL) {
878                hnd[i] = list->hwLayers[i].handle;
879            } else if (hnd[i] ==
880                       list->hwLayers[i].handle) {
881                numCacheableLayers++;
882            } else {
883                hnd[i] = NULL;
884                return;
885            }
886        } else {
887            hnd[i] = NULL;
888        }
889    }
890    if(numFbLayers == numCacheableLayers)
891        canUseLayerCache = true;
892
893    //XXX: The marking part is separate, if MDP comp wants
894    // to use it in the future. Right now getting MDP comp
895    // to use this is more trouble than it is worth.
896    markCachedLayersAsOverlay(list);
897}
898
899void LayerCache::markCachedLayersAsOverlay(hwc_display_contents_1_t* list) {
900    //This optimization only works if ALL the layer handles
901    //that were on the framebuffer didn't change.
902    if(canUseLayerCache){
903        for(uint32_t i = 0; i < list->numHwLayers; i++) {
904            if (list->hwLayers[i].handle &&
905                list->hwLayers[i].handle == hnd[i] &&
906                list->hwLayers[i].compositionType != HWC_FRAMEBUFFER_TARGET)
907            {
908                list->hwLayers[i].compositionType = HWC_OVERLAY;
909            }
910        }
911    }
912}
913
914};//namespace qhwc
915