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2b6e51951fe14856acd6d6ed0a8aa2c95141fd3d
android_vendor_qcom_opensou…/libhwcomposer/hwc.cpp
Saurabh Shah 2b6e51951f hwc: Set DMA mode to LINE after UNSET, commit of BLOCK session 
Set DMA mode to LINE only after we UNSET and commit the sessions
in BLOCK mode from previous rounds.
Currently, it is incorrectly set to LINE always at the beginning
of a draw cycle.
Now we set it to LINE only at the end of a draw cycle if no rotator
sessions are active.

Change-Id: I6e2351d214d01764eced0673b639f709fbd193c3
2013-11-04 10:10:06 -08:00

825 lines
27 KiB
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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012-2013, The Linux Foundation. All rights reserved.
*
* Not a Contribution, Apache license notifications and license are retained
* for attribution purposes only.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define ATRACE_TAG (ATRACE_TAG_GRAPHICS | ATRACE_TAG_HAL)
#include <fcntl.h>
#include <errno.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <EGL/egl.h>
#include <utils/Trace.h>
#include <sys/ioctl.h>
#include <overlay.h>
#include <overlayRotator.h>
#include <overlayWriteback.h>
#include <mdp_version.h>
#include "hwc_utils.h"
#include "hwc_fbupdate.h"
#include "hwc_mdpcomp.h"
#include "hwc_dump_layers.h"
#include "external.h"
#include "hwc_copybit.h"
#include "hwc_ad.h"
#include "profiler.h"
#include "hwc_vpuclient.h"
using namespace qhwc;
using namespace overlay;
#define VSYNC_DEBUG 0
#define BLANK_DEBUG 1
static int hwc_device_open(const struct hw_module_t* module,
const char* name,
struct hw_device_t** device);
static struct hw_module_methods_t hwc_module_methods = {
open: hwc_device_open
};
hwc_module_t HAL_MODULE_INFO_SYM = {
common: {
tag: HARDWARE_MODULE_TAG,
version_major: 2,
version_minor: 0,
id: HWC_HARDWARE_MODULE_ID,
name: "Qualcomm Hardware Composer Module",
author: "CodeAurora Forum",
methods: &hwc_module_methods,
dso: 0,
reserved: {0},
}
};
/* In case of non-hybrid WFD session, we are fooling SF by piggybacking on
* HDMI display ID for virtual. This helper is needed to differentiate their
* paths in HAL.
* TODO: Not needed once we have WFD client working on top of Google API's */
static int getDpyforExternalDisplay(hwc_context_t *ctx, int dpy) {
if(dpy == HWC_DISPLAY_EXTERNAL && ctx->mVirtualonExtActive)
return HWC_DISPLAY_VIRTUAL;
return dpy;
}
/*
* Save callback functions registered to HWC
*/
static void hwc_registerProcs(struct hwc_composer_device_1* dev,
hwc_procs_t const* procs)
{
ALOGI("%s", __FUNCTION__);
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
ALOGE("%s: Invalid context", __FUNCTION__);
return;
}
ctx->proc = procs;
// Now that we have the functions needed, kick off
// the uevent & vsync threads
init_uevent_thread(ctx);
init_vsync_thread(ctx);
}
//Helper
static void reset(hwc_context_t *ctx, int numDisplays,
hwc_display_contents_1_t** displays) {
for(int i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
hwc_display_contents_1_t *list = displays[i];
// XXX:SurfaceFlinger no longer guarantees that this
// value is reset on every prepare. However, for the layer
// cache we need to reset it.
// We can probably rethink that later on
if (LIKELY(list && list->numHwLayers > 1)) {
for(uint32_t j = 0; j < list->numHwLayers; j++) {
if(list->hwLayers[j].compositionType != HWC_FRAMEBUFFER_TARGET)
list->hwLayers[j].compositionType = HWC_FRAMEBUFFER;
}
}
if(ctx->mFBUpdate[i])
ctx->mFBUpdate[i]->reset();
if(ctx->mCopyBit[i])
ctx->mCopyBit[i]->reset();
if(ctx->mLayerRotMap[i])
ctx->mLayerRotMap[i]->reset();
}
ctx->mAD->reset();
MDPComp::reset();
}
//clear prev layer prop flags and realloc for current frame
static void reset_layer_prop(hwc_context_t* ctx, int dpy, int numAppLayers) {
if(ctx->layerProp[dpy]) {
delete[] ctx->layerProp[dpy];
ctx->layerProp[dpy] = NULL;
}
ctx->layerProp[dpy] = new LayerProp[numAppLayers];
}
static void handleGeomChange(hwc_context_t *ctx, int dpy,
hwc_display_contents_1_t *list) {
/* No point to calling overlay_set on MDP3 */
if(list->flags & HWC_GEOMETRY_CHANGED &&
ctx->mMDP.version >= qdutils::MDP_V4_0) {
ctx->mOverlay->forceSet(dpy);
}
}
static int hwc_prepare_primary(hwc_composer_device_1 *dev,
hwc_display_contents_1_t *list) {
ATRACE_CALL();
hwc_context_t* ctx = (hwc_context_t*)(dev);
const int dpy = HWC_DISPLAY_PRIMARY;
if (LIKELY(list && list->numHwLayers > 1) &&
ctx->dpyAttr[dpy].isActive) {
reset_layer_prop(ctx, dpy, list->numHwLayers - 1);
handleGeomChange(ctx, dpy, list);
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
if(fbLayer->handle) {
setListStats(ctx, list, dpy);
#ifdef VPU_TARGET
ctx->mVPUClient->prepare(ctx, list);
#endif
if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) {
const int fbZ = 0;
ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZ);
}
if (ctx->mMDP.version < qdutils::MDP_V4_0) {
if(ctx->mCopyBit[dpy])
ctx->mCopyBit[dpy]->prepare(ctx, list, dpy);
}
}
}
return 0;
}
static int hwc_prepare_external(hwc_composer_device_1 *dev,
hwc_display_contents_1_t *list) {
ATRACE_CALL();
hwc_context_t* ctx = (hwc_context_t*)(dev);
const int dpy = HWC_DISPLAY_EXTERNAL;
if (LIKELY(list && list->numHwLayers > 1) &&
ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected) {
reset_layer_prop(ctx, dpy, list->numHwLayers - 1);
handleGeomChange(ctx, dpy, list);
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
if(!ctx->dpyAttr[dpy].isPause) {
if(fbLayer->handle) {
ctx->dpyAttr[dpy].isConfiguring = false;
setListStats(ctx, list, dpy);
if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) {
const int fbZ = 0;
ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZ);
}
if(ctx->listStats[dpy].isDisplayAnimating) {
// Mark all app layers as HWC_OVERLAY for external during
// animation, so that SF doesnt draw it on FB
for(int i = 0 ;i < ctx->listStats[dpy].numAppLayers; i++) {
hwc_layer_1_t *layer = &list->hwLayers[i];
layer->compositionType = HWC_OVERLAY;
}
}
}
} else {
// External Display is in Pause state.
// ToDo:
// Mark all application layers as OVERLAY so that
// GPU will not compose. This is done for power
// optimization
}
}
return 0;
}
static int hwc_prepare_virtual(hwc_composer_device_1 *dev,
hwc_display_contents_1_t *list) {
ATRACE_CALL();
hwc_context_t* ctx = (hwc_context_t*)(dev);
const int dpy = HWC_DISPLAY_VIRTUAL;
if (LIKELY(list && list->numHwLayers > 1) &&
ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected) {
reset_layer_prop(ctx, dpy, list->numHwLayers - 1);
handleGeomChange(ctx, dpy, list);
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
if(!ctx->dpyAttr[dpy].isPause) {
if(fbLayer->handle) {
ctx->dpyAttr[dpy].isConfiguring = false;
setListStats(ctx, list, dpy);
if(ctx->mMDPComp[dpy]->prepare(ctx, list) < 0) {
const int fbZ = 0;
ctx->mFBUpdate[dpy]->prepare(ctx, list, fbZ);
}
if(ctx->listStats[dpy].isDisplayAnimating) {
// Mark all app layers as HWC_OVERLAY for virtual during
// animation, so that SF doesnt draw it on FB
for(int i = 0 ;i < ctx->listStats[dpy].numAppLayers; i++) {
hwc_layer_1_t *layer = &list->hwLayers[i];
layer->compositionType = HWC_OVERLAY;
}
}
}
} else {
// Virtual Display is in Pause state.
// ToDo:
// Mark all application layers as OVERLAY so that
// GPU will not compose. This is done for power
// optimization
}
}
return 0;
}
static int hwc_prepare(hwc_composer_device_1 *dev, size_t numDisplays,
hwc_display_contents_1_t** displays)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
//Will be unlocked at the end of set
ctx->mDrawLock.lock();
reset(ctx, numDisplays, displays);
ctx->mOverlay->configBegin();
ctx->mRotMgr->configBegin();
overlay::Writeback::configBegin();
for (int32_t i = numDisplays; i >= 0; i--) {
hwc_display_contents_1_t *list = displays[i];
int dpy = getDpyforExternalDisplay(ctx, i);
switch(dpy) {
case HWC_DISPLAY_PRIMARY:
ret = hwc_prepare_primary(dev, list);
break;
case HWC_DISPLAY_EXTERNAL:
ret = hwc_prepare_external(dev, list);
break;
case HWC_DISPLAY_VIRTUAL:
ret = hwc_prepare_virtual(dev, list);
break;
default:
ret = -EINVAL;
}
}
ctx->mOverlay->configDone();
ctx->mRotMgr->configDone();
overlay::Writeback::configDone();
return ret;
}
static int hwc_eventControl(struct hwc_composer_device_1* dev, int dpy,
int event, int enable)
{
ATRACE_CALL();
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
switch(event) {
case HWC_EVENT_VSYNC:
if (ctx->vstate.enable == enable)
break;
ret = hwc_vsync_control(ctx, dpy, enable);
if(ret == 0)
ctx->vstate.enable = !!enable;
ALOGD_IF (VSYNC_DEBUG, "VSYNC state changed to %s",
(enable)?"ENABLED":"DISABLED");
break;
#ifdef QCOM_BSP
case HWC_EVENT_ORIENTATION:
if(dpy == HWC_DISPLAY_PRIMARY) {
Locker::Autolock _l(ctx->mDrawLock);
// store the primary display orientation
// will be used in hwc_video::configure to disable
// rotation animation on external display
ctx->deviceOrientation = enable;
}
break;
#endif
default:
ret = -EINVAL;
}
return ret;
}
static int hwc_blank(struct hwc_composer_device_1* dev, int dpy, int blank)
{
ATRACE_CALL();
hwc_context_t* ctx = (hwc_context_t*)(dev);
Locker::Autolock _l(ctx->mDrawLock);
int ret = 0, value = 0;
/* In case of non-hybrid WFD session, we are fooling SF by
* piggybacking on HDMI display ID for virtual.
* TODO: Not needed once we have WFD client working on top
* of Google API's.
*/
dpy = getDpyforExternalDisplay(ctx,dpy);
ALOGD_IF(BLANK_DEBUG, "%s: %s display: %d", __FUNCTION__,
blank==1 ? "Blanking":"Unblanking", dpy);
if(blank) {
// free up all the overlay pipes in use
// when we get a blank for either display
// makes sure that all pipes are freed
ctx->mOverlay->configBegin();
ctx->mOverlay->configDone();
ctx->mRotMgr->clear();
overlay::Writeback::clear();
}
switch(dpy) {
case HWC_DISPLAY_PRIMARY:
value = blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK;
if(ioctl(ctx->dpyAttr[dpy].fd, FBIOBLANK, value) < 0 ) {
ALOGE("%s: Failed to handle blank event(%d) for Primary!!",
__FUNCTION__, blank );
return -1;
}
if(!blank) {
// Enable HPD here, as during bootup unblank is called
// when SF is completely initialized
ctx->mExtDisplay->setHPD(1);
}
ctx->dpyAttr[dpy].isActive = !blank;
if(ctx->mVirtualonExtActive) {
/* if mVirtualonExtActive is true, display hal will
* receive unblank calls for non-hybrid WFD solution
* since we piggyback on HDMI.
* TODO: Not needed once we have WFD client working on top
of Google API's */
break;
}
case HWC_DISPLAY_VIRTUAL:
/* There are two ways to reach this block of code.
* Display hal has received unblank call on HWC_DISPLAY_EXTERNAL
and ctx->mVirtualonExtActive is true. In this case, non-hybrid
WFD is active. If so, getDpyforExternalDisplay will return dpy
as HWC_DISPLAY_VIRTUAL.
* Display hal has received unblank call on HWC_DISPLAY_PRIMARY
and since SF is not aware of VIRTUAL DISPLAY being handle by HWC,
it wont send blank / unblank events for it. We piggyback on
PRIMARY DISPLAY events to release mdp pipes and
activate/deactivate VIRTUAL DISPLAY.
* TODO: This separate case statement is not needed once we have
WFD client working on top of Google API's.
*/
if(ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].connected) {
if(blank and (!ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isPause)) {
int dpy = HWC_DISPLAY_VIRTUAL;
if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) {
ALOGE("%s: display commit fail for virtual!", __FUNCTION__);
ret = -1;
}
}
ctx->dpyAttr[HWC_DISPLAY_VIRTUAL].isActive = !blank;
}
break;
case HWC_DISPLAY_EXTERNAL:
if(blank) {
if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) {
ALOGE("%s: display commit fail for external!", __FUNCTION__);
ret = -1;
}
}
ctx->dpyAttr[dpy].isActive = !blank;
break;
default:
return -EINVAL;
}
ALOGD_IF(BLANK_DEBUG, "%s: Done %s display: %d", __FUNCTION__,
blank ? "blanking":"unblanking", dpy);
return ret;
}
static int hwc_query(struct hwc_composer_device_1* dev,
int param, int* value)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
int supported = HWC_DISPLAY_PRIMARY_BIT;
switch (param) {
case HWC_BACKGROUND_LAYER_SUPPORTED:
// Not supported for now
value[0] = 0;
break;
case HWC_DISPLAY_TYPES_SUPPORTED:
if(ctx->mMDP.hasOverlay)
supported |= HWC_DISPLAY_EXTERNAL_BIT;
value[0] = supported;
break;
case HWC_FORMAT_RB_SWAP:
value[0] = 1;
break;
default:
return -EINVAL;
}
return 0;
}
static int hwc_set_primary(hwc_context_t *ctx, hwc_display_contents_1_t* list) {
ATRACE_CALL();
int ret = 0;
const int dpy = HWC_DISPLAY_PRIMARY;
if (LIKELY(list) && ctx->dpyAttr[dpy].isActive) {
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
int fd = -1; //FenceFD from the Copybit(valid in async mode)
bool copybitDone = false;
if(ctx->mCopyBit[dpy])
copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
if(list->numHwLayers > 1)
hwc_sync(ctx, list, dpy, fd);
// Dump the layers for primary
if(ctx->mHwcDebug[dpy])
ctx->mHwcDebug[dpy]->dumpLayers(list);
if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
ALOGE("%s: MDPComp draw failed", __FUNCTION__);
ret = -1;
}
#ifdef VPU_TARGET
ctx->mVPUClient->draw(ctx, list);
#endif
//TODO We dont check for SKIP flag on this layer because we need PAN
//always. Last layer is always FB
private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
if(copybitDone) {
hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
}
if(hnd) {
if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
ALOGE("%s: FBUpdate draw failed", __FUNCTION__);
ret = -1;
}
}
if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd,
ctx->listStats[dpy].roi)) {
ALOGE("%s: display commit fail for %d dpy!", __FUNCTION__, dpy);
ret = -1;
}
}
closeAcquireFds(list);
return ret;
}
static int hwc_set_external(hwc_context_t *ctx,
hwc_display_contents_1_t* list)
{
ATRACE_CALL();
int ret = 0;
const int dpy = HWC_DISPLAY_EXTERNAL;
if (LIKELY(list) && ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected &&
!ctx->dpyAttr[dpy].isPause) {
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
int fd = -1; //FenceFD from the Copybit(valid in async mode)
bool copybitDone = false;
if(ctx->mCopyBit[dpy])
copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
if(list->numHwLayers > 1)
hwc_sync(ctx, list, dpy, fd);
// Dump the layers for external
if(ctx->mHwcDebug[dpy])
ctx->mHwcDebug[dpy]->dumpLayers(list);
if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
ALOGE("%s: MDPComp draw failed", __FUNCTION__);
ret = -1;
}
int extOnlyLayerIndex =
ctx->listStats[dpy].extOnlyLayerIndex;
private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
if(extOnlyLayerIndex!= -1) {
hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex];
hnd = (private_handle_t *)extLayer->handle;
} else if(copybitDone) {
hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
}
if(hnd && !isYuvBuffer(hnd)) {
if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__);
ret = -1;
}
}
if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) {
ALOGE("%s: display commit fail for %d dpy!", __FUNCTION__, dpy);
ret = -1;
}
}
closeAcquireFds(list);
return ret;
}
static int hwc_set_virtual(hwc_context_t *ctx,
hwc_display_contents_1_t* list)
{
ATRACE_CALL();
int ret = 0;
const int dpy = HWC_DISPLAY_VIRTUAL;
if (LIKELY(list) && ctx->dpyAttr[dpy].isActive &&
ctx->dpyAttr[dpy].connected &&
!ctx->dpyAttr[dpy].isPause) {
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
int fd = -1; //FenceFD from the Copybit(valid in async mode)
bool copybitDone = false;
if(ctx->mCopyBit[dpy])
copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
if(list->numHwLayers > 1)
hwc_sync(ctx, list, dpy, fd);
// Dump the layers for virtual
if(ctx->mHwcDebug[dpy])
ctx->mHwcDebug[dpy]->dumpLayers(list);
if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
ALOGE("%s: MDPComp draw failed", __FUNCTION__);
ret = -1;
}
int extOnlyLayerIndex =
ctx->listStats[dpy].extOnlyLayerIndex;
private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
if(extOnlyLayerIndex!= -1) {
hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex];
hnd = (private_handle_t *)extLayer->handle;
} else if(copybitDone) {
hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
}
if(hnd && !isYuvBuffer(hnd)) {
if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__);
ret = -1;
}
}
if(!Overlay::displayCommit(ctx->dpyAttr[dpy].fd)) {
ALOGE("%s: display commit fail for %d dpy!", __FUNCTION__, dpy);
ret = -1;
}
}
closeAcquireFds(list);
if (list && !ctx->mVirtualonExtActive && (list->retireFenceFd < 0) ) {
// SF assumes HWC waits for the acquire fence and returns a new fence
// that signals when we're done. Since we don't wait, and also don't
// touch the buffer, we can just handle the acquire fence back to SF
// as the retire fence.
list->retireFenceFd = list->outbufAcquireFenceFd;
}
return ret;
}
static int hwc_set(hwc_composer_device_1 *dev,
size_t numDisplays,
hwc_display_contents_1_t** displays)
{
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
for (uint32_t i = 0; i <= numDisplays; i++) {
hwc_display_contents_1_t* list = displays[i];
int dpy = getDpyforExternalDisplay(ctx, i);
switch(dpy) {
case HWC_DISPLAY_PRIMARY:
ret = hwc_set_primary(ctx, list);
break;
case HWC_DISPLAY_EXTERNAL:
ret = hwc_set_external(ctx, list);
break;
case HWC_DISPLAY_VIRTUAL:
ret = hwc_set_virtual(ctx, list);
break;
default:
ret = -EINVAL;
}
}
// This is only indicative of how many times SurfaceFlinger posts
// frames to the display.
CALC_FPS();
MDPComp::resetIdleFallBack();
ctx->mVideoTransFlag = false;
if(ctx->mRotMgr->getNumActiveSessions() == 0)
Overlay::setDMAMode(Overlay::DMA_LINE_MODE);
//Was locked at the beginning of prepare
ctx->mDrawLock.unlock();
return ret;
}
int hwc_getDisplayConfigs(struct hwc_composer_device_1* dev, int disp,
uint32_t* configs, size_t* numConfigs) {
int ret = 0;
hwc_context_t* ctx = (hwc_context_t*)(dev);
disp = getDpyforExternalDisplay(ctx, disp);
//in 1.1 there is no way to choose a config, report as config id # 0
//This config is passed to getDisplayAttributes. Ignore for now.
switch(disp) {
case HWC_DISPLAY_PRIMARY:
if(*numConfigs > 0) {
configs[0] = 0;
*numConfigs = 1;
}
ret = 0; //NO_ERROR
break;
case HWC_DISPLAY_EXTERNAL:
case HWC_DISPLAY_VIRTUAL:
ret = -1; //Not connected
if(ctx->dpyAttr[disp].connected) {
ret = 0; //NO_ERROR
if(*numConfigs > 0) {
configs[0] = 0;
*numConfigs = 1;
}
}
break;
}
return ret;
}
int hwc_getDisplayAttributes(struct hwc_composer_device_1* dev, int disp,
uint32_t config, const uint32_t* attributes, int32_t* values) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
disp = getDpyforExternalDisplay(ctx, disp);
//If hotpluggable displays(i.e, HDMI, WFD) are inactive return error
if( (disp != HWC_DISPLAY_PRIMARY) && !ctx->dpyAttr[disp].connected) {
return -1;
}
//From HWComposer
static const uint32_t DISPLAY_ATTRIBUTES[] = {
HWC_DISPLAY_VSYNC_PERIOD,
HWC_DISPLAY_WIDTH,
HWC_DISPLAY_HEIGHT,
HWC_DISPLAY_DPI_X,
HWC_DISPLAY_DPI_Y,
HWC_DISPLAY_NO_ATTRIBUTE,
};
const int NUM_DISPLAY_ATTRIBUTES = (sizeof(DISPLAY_ATTRIBUTES) /
sizeof(DISPLAY_ATTRIBUTES)[0]);
for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
switch (attributes[i]) {
case HWC_DISPLAY_VSYNC_PERIOD:
values[i] = ctx->dpyAttr[disp].vsync_period;
break;
case HWC_DISPLAY_WIDTH:
values[i] = ctx->dpyAttr[disp].xres;
ALOGD("%s disp = %d, width = %d",__FUNCTION__, disp,
ctx->dpyAttr[disp].xres);
break;
case HWC_DISPLAY_HEIGHT:
values[i] = ctx->dpyAttr[disp].yres;
ALOGD("%s disp = %d, height = %d",__FUNCTION__, disp,
ctx->dpyAttr[disp].yres);
break;
case HWC_DISPLAY_DPI_X:
values[i] = (int32_t) (ctx->dpyAttr[disp].xdpi*1000.0);
break;
case HWC_DISPLAY_DPI_Y:
values[i] = (int32_t) (ctx->dpyAttr[disp].ydpi*1000.0);
break;
default:
ALOGE("Unknown display attribute %d",
attributes[i]);
return -EINVAL;
}
}
return 0;
}
void hwc_dump(struct hwc_composer_device_1* dev, char *buff, int buff_len)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
Locker::Autolock _l(ctx->mDrawLock);
android::String8 aBuf("");
dumpsys_log(aBuf, "Qualcomm HWC state:\n");
dumpsys_log(aBuf, " MDPVersion=%d\n", ctx->mMDP.version);
dumpsys_log(aBuf, " DisplayPanel=%c\n", ctx->mMDP.panel);
for(int dpy = 0; dpy < HWC_NUM_DISPLAY_TYPES; dpy++) {
if(ctx->mMDPComp[dpy])
ctx->mMDPComp[dpy]->dump(aBuf);
}
char ovDump[2048] = {'\0'};
ctx->mOverlay->getDump(ovDump, 2048);
dumpsys_log(aBuf, ovDump);
ovDump[0] = '\0';
ctx->mRotMgr->getDump(ovDump, 1024);
dumpsys_log(aBuf, ovDump);
ovDump[0] = '\0';
Writeback::getInstance()->getDump(ovDump, 1024);
dumpsys_log(aBuf, ovDump);
strlcpy(buff, aBuf.string(), buff_len);
}
static int hwc_device_close(struct hw_device_t *dev)
{
if(!dev) {
ALOGE("%s: NULL device pointer", __FUNCTION__);
return -1;
}
closeContext((hwc_context_t*)dev);
free(dev);
return 0;
}
static int hwc_device_open(const struct hw_module_t* module, const char* name,
struct hw_device_t** device)
{
int status = -EINVAL;
if (!strcmp(name, HWC_HARDWARE_COMPOSER)) {
struct hwc_context_t *dev;
dev = (hwc_context_t*)malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
//Initialize hwc context
initContext(dev);
//Setup HWC methods
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = HWC_DEVICE_API_VERSION_1_2;
dev->device.common.module = const_cast<hw_module_t*>(module);
dev->device.common.close = hwc_device_close;
dev->device.prepare = hwc_prepare;
dev->device.set = hwc_set;
dev->device.eventControl = hwc_eventControl;
dev->device.blank = hwc_blank;
dev->device.query = hwc_query;
dev->device.registerProcs = hwc_registerProcs;
dev->device.dump = hwc_dump;
dev->device.getDisplayConfigs = hwc_getDisplayConfigs;
dev->device.getDisplayAttributes = hwc_getDisplayAttributes;
*device = &dev->device.common;
status = 0;
}
return status;
}
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