android_hardware_qcom_display/liboverlay/overlayLibUI.cpp

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/*
* Copyright (C) 2008 The Android Open Source Project
* Copyright (c) 2011, Code Aurora Forum. 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 "overlayLibUI.h"
#include "gralloc_priv.h"
namespace {
/* helper functions */
bool checkOVState(int w, int h, int format, int orientation,
int zorder, const mdp_overlay& ov) {
switch(orientation) {
case OVERLAY_TRANSFORM_ROT_90:
case OVERLAY_TRANSFORM_ROT_270: {
int tmp = w;
w = h;
h = tmp;
break;
}
default:
break;
}
bool displayAttrsCheck = ((w == ov.src.width) && (h == ov.src.height) &&
(format == ov.src.format));
bool zOrderCheck = (ov.z_order == zorder);
if (displayAttrsCheck && zorder == overlay::NO_INIT)
return true;
if (displayAttrsCheck && zorder != overlay::NO_INIT
&& ov.z_order == zorder)
return true;
return false;
}
void swapOVRotWidthHeight(msm_rotator_img_info& rotInfo,
mdp_overlay& ovInfo) {
int srcWidth = ovInfo.src.width;
ovInfo.src.width = ovInfo.src.height;
ovInfo.src.height = srcWidth;
int srcRectWidth = ovInfo.src_rect.w;
ovInfo.src_rect.w = ovInfo.src_rect.h;
ovInfo.src_rect.h = srcRectWidth;
int dstWidth = rotInfo.dst.width;
rotInfo.dst.width = rotInfo.dst.height;
rotInfo.dst.height = dstWidth;
}
void setupOvRotInfo(int w, int h, int format, int orientation,
mdp_overlay& ovInfo, msm_rotator_img_info& rotInfo) {
memset(&ovInfo, 0, sizeof(ovInfo));
memset(&rotInfo, 0, sizeof(rotInfo));
ovInfo.id = MSMFB_NEW_REQUEST;
ovInfo.src.width = w;
ovInfo.src.height = h;
ovInfo.src.format = format;
ovInfo.src_rect.w = w;
ovInfo.src_rect.h = h;
ovInfo.alpha = 0xff;
ovInfo.transp_mask = 0xffffffff;
rotInfo.src.format = format;
rotInfo.dst.format = format;
w = (w + 31) & ~31;
h = (h + 31) & ~31;
rotInfo.src.width = w;
rotInfo.src.height = h;
rotInfo.src_rect.w = w;
rotInfo.src_rect.h = h;
rotInfo.dst.width = w;
rotInfo.dst.height = h;
int rot = orientation;
int flip = 0;
switch(rot) {
case 0:
case HAL_TRANSFORM_FLIP_H:
case HAL_TRANSFORM_FLIP_V:
rot = 0;
flip = orientation & (HAL_TRANSFORM_FLIP_H|HAL_TRANSFORM_FLIP_V);
break;
case HAL_TRANSFORM_ROT_90:
case (HAL_TRANSFORM_ROT_90|HAL_TRANSFORM_FLIP_H):
case (HAL_TRANSFORM_ROT_90|HAL_TRANSFORM_FLIP_V): {
int tmp = ovInfo.src_rect.x;
ovInfo.src_rect.x = ovInfo.src.height -
(ovInfo.src_rect.y + ovInfo.src_rect.h);
ovInfo.src_rect.y = tmp;
swapOVRotWidthHeight(rotInfo, ovInfo);
rot = HAL_TRANSFORM_ROT_90;
flip = orientation & (HAL_TRANSFORM_FLIP_H|HAL_TRANSFORM_FLIP_V);
break;
}
case HAL_TRANSFORM_ROT_180:
break;
case HAL_TRANSFORM_ROT_270: {
int tmp = ovInfo.src_rect.y;
ovInfo.src_rect.y = ovInfo.src.width -
(ovInfo.src_rect.x + ovInfo.src_rect.w);
ovInfo.src_rect.x = tmp;
swapOVRotWidthHeight(rotInfo, ovInfo);
break;
}
default:
break;
}
int mdp_rotation = overlay::get_mdp_orientation(rot, flip);
if (mdp_rotation < 0)
mdp_rotation = 0;
ovInfo.user_data[0] = mdp_rotation;
rotInfo.rotations = ovInfo.user_data[0];
if (mdp_rotation)
rotInfo.enable = 1;
ovInfo.dst_rect.w = ovInfo.src_rect.w;
ovInfo.dst_rect.h = ovInfo.src_rect.h;
}
bool isRGBType(int format) {
bool ret = false;
switch(format) {
case MDP_RGBA_8888:
case MDP_BGRA_8888:
case MDP_RGBX_8888:
case MDP_RGB_565:
ret = true;
break;
default:
ret = false;
break;
}
return ret;
}
int getRGBBpp(int format) {
int ret = -1;
switch(format) {
case MDP_RGBA_8888:
case MDP_BGRA_8888:
case MDP_RGBX_8888:
ret = 4;
break;
case MDP_RGB_565:
ret = 2;
break;
default:
ret = -1;
break;
}
return ret;
}
bool turnOFFVSync() {
static int swapIntervalPropVal = -1;
if (swapIntervalPropVal == -1) {
char pval[PROPERTY_VALUE_MAX];
property_get("debug.gr.swapinterval", pval, "1");
swapIntervalPropVal = atoi(pval);
}
return (swapIntervalPropVal == 0);
}
};
namespace overlay {
status_t Display::openDisplay(int fbnum) {
if (mFD != NO_INIT)
return ALREADY_EXISTS;
status_t ret = NO_INIT;
char const * const device_template =
"/dev/graphics/fb%u";
char dev_name[64];
snprintf(dev_name, 64, device_template, fbnum);
mFD = open(dev_name, O_RDWR, 0);
if (mFD < 0) {
LOGE("Failed to open FB %d", fbnum);
return ret;
}
fb_var_screeninfo vinfo;
if (ioctl(mFD, FBIOGET_VSCREENINFO, &vinfo)) {
LOGE("FBIOGET_VSCREENINFO on failed on FB %d", fbnum);
close(mFD);
mFD = NO_INIT;
return ret;
}
mFBWidth = vinfo.xres;
mFBHeight = vinfo.yres;
mFBBpp = vinfo.bits_per_pixel;
ret = NO_ERROR;
return ret;
}
status_t OVHelper::startOVSession(mdp_overlay& ovInfo, int fbnum) {
status_t ret = NO_INIT;
if (mSessionID == NO_INIT) {
ret = mobjDisplay.openDisplay(fbnum);
if (ret != NO_ERROR)
return ret;
if (ioctl(mobjDisplay.getFD(), MSMFB_OVERLAY_SET, &ovInfo)) {
LOGE("OVerlay set failed..");
mobjDisplay.closeDisplay();
ret = BAD_VALUE;
}
else {
mSessionID = ovInfo.id;
mOVInfo = ovInfo;
ret = NO_ERROR;
}
}
else
ret = ALREADY_EXISTS;
return ret;
}
status_t OVHelper::queueBuffer(msmfb_overlay_data ovData) {
if (mSessionID == NO_INIT)
return NO_INIT;
ovData.id = mSessionID;
if (ioctl(mobjDisplay.getFD(), MSMFB_OVERLAY_PLAY, &ovData))
return BAD_VALUE;
return NO_ERROR;
}
status_t OVHelper::closeOVSession() {
if (mSessionID != NO_INIT) {
ioctl(mobjDisplay.getFD(), MSMFB_OVERLAY_UNSET, &mSessionID);
mobjDisplay.closeDisplay();
}
mSessionID = NO_INIT;
return NO_ERROR;
}
status_t OVHelper::setPosition(int x, int y, int w, int h) {
status_t ret = BAD_VALUE;
if (mSessionID != NO_INIT) {
int fd = mobjDisplay.getFD();
if (x < 0 || y < 0 || ((x + w) > getFBWidth())) {
LOGE("set position failed, invalid argument");
return ret;
}
mdp_overlay ov;
ov.id = mSessionID;
if (!ioctl(fd, MSMFB_OVERLAY_GET, &ov)) {
if (x != ov.dst_rect.x || y != ov.dst_rect.y ||
w != ov.dst_rect.w || h != ov.dst_rect.h) {
ov.dst_rect.x = x;
ov.dst_rect.y = y;
ov.dst_rect.w = w;
ov.dst_rect.h = h;
if (ioctl(fd, MSMFB_OVERLAY_SET, &ov)) {
LOGE("set position failed");
return ret;
}
}
mOVInfo = ov;
return NO_ERROR;
}
return ret;
}
return NO_INIT;
}
status_t OVHelper::getOVInfo(mdp_overlay& ovInfo) {
if (mSessionID == NO_INIT)
return NO_INIT;
ovInfo = mOVInfo;
return NO_ERROR;
}
status_t Rotator::startRotSession(msm_rotator_img_info& rotInfo,
int numBuffers) {
status_t ret = ALREADY_EXISTS;
if (mSessionID == NO_INIT && mFD == NO_INIT) {
mNumBuffers = numBuffers;
mFD = open("/dev/msm_rotator", O_RDWR, 0);
if (mFD < 0) {
LOGE("Couldnt open rotator device");
return NO_INIT;
}
if (int check = ioctl(mFD, MSM_ROTATOR_IOCTL_START, &rotInfo)) {
close(mFD);
mFD = NO_INIT;
return NO_INIT;
}
mSessionID = rotInfo.session_id;
mPmemFD = open("/dev/pmem_adsp", O_RDWR | O_SYNC);
if (mPmemFD < 0) {
closeRotSession();
return NO_INIT;
}
mSize = get_size(rotInfo.src.format, rotInfo.src.width, rotInfo.src.height);
mPmemAddr = (void *) mmap(NULL, mSize* mNumBuffers, PROT_READ | PROT_WRITE,
MAP_SHARED, mPmemFD, 0);
if (mPmemAddr == MAP_FAILED) {
closeRotSession();
return NO_INIT;
}
mCurrentItem = 0;
for (int i = 0; i < mNumBuffers; i++)
mRotOffset[i] = i * mSize;
ret = NO_ERROR;
}
return ret;
}
status_t Rotator::closeRotSession() {
if (mSessionID != NO_INIT && mFD != NO_INIT) {
ioctl(mFD, MSM_ROTATOR_IOCTL_FINISH, &mSessionID);
close(mFD);
munmap(mPmemAddr, mSize * mNumBuffers);
close(mPmemFD);
}
mFD = NO_INIT;
mSessionID = NO_INIT;
mPmemFD = NO_INIT;
mPmemAddr = MAP_FAILED;
return NO_ERROR;
}
status_t Rotator::rotateBuffer(msm_rotator_data_info& rotData) {
status_t ret = NO_INIT;
if (mSessionID != NO_INIT) {
rotData.dst.memory_id = mPmemFD;
rotData.dst.offset = mRotOffset[mCurrentItem];
rotData.session_id = mSessionID;
mCurrentItem = (mCurrentItem + 1) % mNumBuffers;
if (ioctl(mFD, MSM_ROTATOR_IOCTL_ROTATE, &rotData)) {
LOGE("Rotator failed to rotate");
return BAD_VALUE;
}
return NO_ERROR;
}
return ret;
}
status_t OverlayUI::closeChannel() {
mobjOVHelper.closeOVSession();
mobjRotator.closeRotSession();
mChannelState = CLOSED;
return NO_ERROR;
}
status_t OverlayUI::setSource(int w, int h, int format, int orientation,
bool useVGPipe, bool ignoreFB,
int fbnum, int zorder) {
status_t ret = NO_INIT;
int format3D = FORMAT_3D(format);
int colorFormat = COLOR_FORMAT(format);
format = get_mdp_format(colorFormat);
if (format3D || !isRGBType(format))
return ret;
if (mChannelState == PENDING_CLOSE)
closeChannel();
if (mChannelState == UP) {
mdp_overlay ov;
if (mobjOVHelper.getOVInfo(ov) == NO_ERROR) {
if (mOrientation == orientation &&
mFBNum == fbnum &&
checkOVState(w, h, format, orientation, zorder, ov))
return NO_ERROR;
else
mChannelState = PENDING_CLOSE;
}
else
mChannelState = PENDING_CLOSE;
return ret;
}
mOrientation = orientation;
mdp_overlay ovInfo;
msm_rotator_img_info rotInfo;
setupOvRotInfo(w, h, format, orientation, ovInfo, rotInfo);
int flags = 0;
if (ignoreFB)
ovInfo.is_fg = 1;
else
flags |= MDP_OV_PLAY_NOWAIT;
if (turnOFFVSync())
flags |= MDP_OV_PLAY_NOWAIT;
if (useVGPipe ||
(fbnum == FB0 && getRGBBpp(format) != mobjOVHelper.getFBBpp()))
flags |= MDP_OV_PIPE_SHARE;
ovInfo.flags = flags;
if (zorder != NO_INIT)
ovInfo.z_order = zorder;
ret = startChannel(fbnum, ovInfo, rotInfo);
return ret;
}
status_t OverlayUI::startChannel(int fbnum, mdp_overlay& ovInfo,
msm_rotator_img_info& rotInfo) {
status_t ret = BAD_VALUE;
if (mChannelState == UP)
return ret;
ret = mobjOVHelper.startOVSession(ovInfo, fbnum);
if (ret == NO_ERROR && mOrientation)
ret = mobjRotator.startRotSession(rotInfo);
if (ret == NO_ERROR) {
mChannelState = UP;
mFBNum = fbnum;
}
else
LOGE("start channel failed.");
return ret;
}
status_t OverlayUI::queueBuffer(buffer_handle_t buffer) {
status_t ret = NO_INIT;
if (mChannelState != UP)
return ret;
msmfb_overlay_data ovData;
memset(&ovData, 0, sizeof(ovData));
private_handle_t const* hnd = reinterpret_cast
<private_handle_t const*>(buffer);
ovData.data.memory_id = hnd->fd;
ovData.data.offset = hnd->offset;
if (mOrientation) {
msm_rotator_data_info rotData;
memset(&rotData, 0, sizeof(rotData));
rotData.src.memory_id = hnd->fd;
rotData.src.offset = hnd->offset;
if (mobjRotator.rotateBuffer(rotData) != NO_ERROR) {
LOGE("Rotator failed.. ");
return BAD_VALUE;
}
ovData.data.memory_id = rotData.dst.memory_id;
ovData.data.offset = rotData.dst.offset;
}
ret = mobjOVHelper.queueBuffer(ovData);
if (ret != NO_ERROR)
LOGE("Queuebuffer failed ");
return ret;
}
};