LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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1a8cda0b2cb535656eb18bf5dc07a02fcddec9ab
android_vendor_qcom_opensou…/libhwcomposer/hwc_utils.cpp
Saurabh Shah 1a8cda0b2c hwc: clean up overlay for external from the draw thread only 
Cleanup overlay for external from the draw thread. If done from the uevent
thread, its possible that the object being used by draw thread is deleted by
uevent thread.

This also removes unnecessary side-effects where libexternal sets states in
hwc, whereas, it could be set from hwc itself. There should be no need for
libexternal to modify states in hwc.

Bug: 7335863 (partial fix)
Change-Id: If07483e640abae2ced2418e0d5c8f278f8c6ec33
Signed-off-by: Iliyan Malchev <malchev@google.com>
2012-10-15 12:02:33 -07:00

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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012, The Linux Foundation All rights reserved.
*
* 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.
*/
#include <EGL/egl.h>
#include <overlay.h>
#include <cutils/properties.h>
#include <gralloc_priv.h>
#include <fb_priv.h>
#include "hwc_utils.h"
#include "mdp_version.h"
#include "hwc_video.h"
#include "external.h"
#include "hwc_mdpcomp.h"
#include "QService.h"
namespace qhwc {
// Opens Framebuffer device
static void openFramebufferDevice(hwc_context_t *ctx)
{
hw_module_t const *module;
if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
framebuffer_open(module, &(ctx->mFbDev));
private_module_t* m = reinterpret_cast<private_module_t*>(
ctx->mFbDev->common.module);
//xres, yres may not be 32 aligned
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres = m->info.xres;
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].yres = m->info.yres;
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xdpi = ctx->mFbDev->xdpi;
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].ydpi = ctx->mFbDev->ydpi;
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].vsync_period =
1000000000l / ctx->mFbDev->fps;
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = openFb(HWC_DISPLAY_PRIMARY);
}
}
void initContext(hwc_context_t *ctx)
{
openFramebufferDevice(ctx);
overlay::Overlay::initOverlay();
for(uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
ctx->mOverlay[i] = overlay::Overlay::getInstance(i);
}
ctx->mQService = qService::QService::getInstance(ctx);
ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
ctx->mExtDisplay = new ExternalDisplay(ctx);
MDPComp::init(ctx);
pthread_mutex_init(&(ctx->vstate.lock), NULL);
pthread_cond_init(&(ctx->vstate.cond), NULL);
ctx->vstate.enable = false;
ALOGI("Initializing Qualcomm Hardware Composer");
ALOGI("MDP version: %d", ctx->mMDP.version);
}
void closeContext(hwc_context_t *ctx)
{
for(uint32_t i = 0; i < HWC_NUM_DISPLAY_TYPES; i++) {
if(ctx->mOverlay[i]) {
delete ctx->mOverlay[i];
ctx->mOverlay[i] = NULL;
}
}
if(ctx->mFbDev) {
framebuffer_close(ctx->mFbDev);
ctx->mFbDev = NULL;
close(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd);
ctx->dpyAttr[HWC_DISPLAY_PRIMARY].fd = -1;
}
if(ctx->mExtDisplay) {
delete ctx->mExtDisplay;
ctx->mExtDisplay = NULL;
}
pthread_mutex_destroy(&(ctx->vstate.lock));
pthread_cond_destroy(&(ctx->vstate.cond));
}
void dumpLayer(hwc_layer_1_t const* l)
{
ALOGD("\ttype=%d, flags=%08x, handle=%p, tr=%02x, blend=%04x, {%d,%d,%d,%d}"
", {%d,%d,%d,%d}",
l->compositionType, l->flags, l->handle, l->transform, l->blending,
l->sourceCrop.left,
l->sourceCrop.top,
l->sourceCrop.right,
l->sourceCrop.bottom,
l->displayFrame.left,
l->displayFrame.top,
l->displayFrame.right,
l->displayFrame.bottom);
}
void setListStats(hwc_context_t *ctx,
const hwc_display_contents_1_t *list, int dpy) {
ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
ctx->listStats[dpy].yuvCount = 0;
ctx->listStats[dpy].yuvIndex = -1;
ctx->listStats[dpy].skipCount = 0;
for (size_t i = 0; i < list->numHwLayers; i++) {
private_handle_t *hnd =
(private_handle_t *)list->hwLayers[i].handle;
if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
continue;
//We disregard FB being skip for now! so the else if
} else if (isSkipLayer(&list->hwLayers[i])) {
ctx->listStats[dpy].skipCount++;
}
if (UNLIKELY(isYuvBuffer(hnd))) {
ctx->listStats[dpy].yuvCount++;
ctx->listStats[dpy].yuvIndex = i;
}
}
}
static inline void calc_cut(float& leftCutRatio, float& topCutRatio,
float& rightCutRatio, float& bottomCutRatio, int orient) {
if(orient & HAL_TRANSFORM_FLIP_H) {
swap(leftCutRatio, rightCutRatio);
}
if(orient & HAL_TRANSFORM_FLIP_V) {
swap(topCutRatio, bottomCutRatio);
}
if(orient & HAL_TRANSFORM_ROT_90) {
//Anti clock swapping
float tmpCutRatio = leftCutRatio;
leftCutRatio = topCutRatio;
topCutRatio = rightCutRatio;
rightCutRatio = bottomCutRatio;
bottomCutRatio = tmpCutRatio;
}
}
//Crops source buffer against destination and FB boundaries
void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst,
const int fbWidth, const int fbHeight, int orient) {
int& crop_l = crop.left;
int& crop_t = crop.top;
int& crop_r = crop.right;
int& crop_b = crop.bottom;
int crop_w = crop.right - crop.left;
int crop_h = crop.bottom - crop.top;
int& dst_l = dst.left;
int& dst_t = dst.top;
int& dst_r = dst.right;
int& dst_b = dst.bottom;
int dst_w = abs(dst.right - dst.left);
int dst_h = abs(dst.bottom - dst.top);
float leftCutRatio = 0.0f, rightCutRatio = 0.0f, topCutRatio = 0.0f,
bottomCutRatio = 0.0f;
if(dst_l < 0) {
leftCutRatio = (float)(0.0f - dst_l) / (float)dst_w;
dst_l = 0;
}
if(dst_r > fbWidth) {
rightCutRatio = (float)(dst_r - fbWidth) / (float)dst_w;
dst_r = fbWidth;
}
if(dst_t < 0) {
topCutRatio = (float)(0 - dst_t) / (float)dst_h;
dst_t = 0;
}
if(dst_b > fbHeight) {
bottomCutRatio = (float)(dst_b - fbHeight) / (float)dst_h;
dst_b = fbHeight;
}
calc_cut(leftCutRatio, topCutRatio, rightCutRatio, bottomCutRatio, orient);
crop_l += crop_w * leftCutRatio;
crop_t += crop_h * topCutRatio;
crop_r -= crop_w * rightCutRatio;
crop_b -= crop_h * bottomCutRatio;
}
bool isExternalActive(hwc_context_t* ctx) {
return ctx->dpyAttr[HWC_DISPLAY_EXTERNAL].isActive;
}
int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy) {
int ret = 0;
#ifdef USE_FENCE_SYNC
struct mdp_buf_sync data;
int acquireFd[4];
int count = 0;
int releaseFd = -1;
int fbFd = -1;
data.flags = MDP_BUF_SYNC_FLAG_WAIT;
data.acq_fen_fd = acquireFd;
data.rel_fen_fd = &releaseFd;
//Accumulate acquireFenceFds
for(uint32_t i = 0; i < list->numHwLayers; i++) {
if((list->hwLayers[i].compositionType == HWC_OVERLAY ||
list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) &&
list->hwLayers[i].acquireFenceFd != -1) {
acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
}
}
if (count) {
data.acq_fen_fd_cnt = count;
fbFd = ctx->dpyAttr[dpy].fd;
//Waits for acquire fences, returns a release fence
ret = ioctl(fbFd, MSMFB_BUFFER_SYNC, &data);
if(ret < 0) {
ALOGE("ioctl MSMFB_BUFFER_SYNC failed, err=%s",
strerror(errno));
}
for(uint32_t i = 0; i < list->numHwLayers; i++) {
if((list->hwLayers[i].compositionType == HWC_OVERLAY ||
list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET)) {
//Close the acquireFenceFds
if(list->hwLayers[i].acquireFenceFd > 0) {
close(list->hwLayers[i].acquireFenceFd);
list->hwLayers[i].acquireFenceFd = -1;
}
//Populate releaseFenceFds.
list->hwLayers[i].releaseFenceFd = dup(releaseFd);
}
}
list->retireFenceFd = releaseFd;
}
#endif
return ret;
}
};//namespace
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