android_hardware_qcom_display/liboverlay/overlayLib.cpp
Naomi Luis 71a74457f1 overlay: Add support for flipping the source image
Add support for source horizonal and vertical flipping in the overlay.
Based on the final orientation and the flip information, set the correct
rotation value for the MDP.

Change-Id: Ie20022a8bf8f9725f01b4213b814cbe0af44625e
2011-09-19 19:16:33 -05:00

1016 lines
29 KiB
C++
Executable File

/*
* Copyright (C) 2008 The Android Open Source Project
* Copyright (c) 2010, 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 "overlayLib.h"
#include "gralloc_priv.h"
#define INTERLACE_MASK 0x80
/* Helper functions */
static int get_mdp_format(int format) {
switch (format) {
case HAL_PIXEL_FORMAT_RGBA_8888 :
return MDP_RGBA_8888;
case HAL_PIXEL_FORMAT_BGRA_8888:
return MDP_BGRA_8888;
case HAL_PIXEL_FORMAT_RGB_565:
return MDP_RGB_565;
case HAL_PIXEL_FORMAT_YCbCr_422_SP:
return MDP_Y_CBCR_H2V1;
case HAL_PIXEL_FORMAT_YCbCr_420_SP:
return MDP_Y_CBCR_H2V2;
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
return MDP_Y_CRCB_H2V2;
case HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
return MDP_Y_CRCB_H2V2_TILE;
}
return -1;
}
static int get_size(int format, int w, int h) {
int size, aligned_height, pitch;
size = w * h;
switch (format) {
case MDP_RGBA_8888:
case MDP_BGRA_8888:
size *= 4;
break;
case MDP_RGB_565:
case MDP_Y_CBCR_H2V1:
size *= 2;
break;
case MDP_Y_CBCR_H2V2:
case MDP_Y_CRCB_H2V2:
size = (size * 3) / 2;
break;
case MDP_Y_CRCB_H2V2_TILE:
aligned_height = (h + 31) & ~31;
pitch = (w + 127) & ~127;
size = pitch * aligned_height;
size = (size + 8191) & ~8191;
aligned_height = ((h >> 1) + 31) & ~31;
size += pitch * aligned_height;
size = (size + 8191) & ~8191;
break;
default:
return 0;
}
return size;
}
static bool isRGBType(int format) {
switch (format) {
case MDP_RGBA_8888:
case MDP_BGRA_8888:
case MDP_RGBX_8888:
case MDP_RGB_565:
return true;
}
return false;
}
static int get_mdp_orientation(int rotation, int flip) {
switch(flip) {
case HAL_TRANSFORM_FLIP_H:
switch(rotation) {
case 0: return MDP_FLIP_UD;
case HAL_TRANSFORM_ROT_90: return (MDP_ROT_90 | MDP_FLIP_LR);
case HAL_TRANSFORM_ROT_180: return MDP_FLIP_LR;
case HAL_TRANSFORM_ROT_270: return (MDP_ROT_90 | MDP_FLIP_UD);
default: return -1;
break;
}
break;
case HAL_TRANSFORM_FLIP_V:
switch(rotation) {
case 0: return MDP_FLIP_LR;
case HAL_TRANSFORM_ROT_90: return (MDP_ROT_90 | MDP_FLIP_UD);
case HAL_TRANSFORM_ROT_180: return MDP_FLIP_UD;
case HAL_TRANSFORM_ROT_270: return (MDP_ROT_90 | MDP_FLIP_LR);
default: return -1;
break;
}
break;
default:
switch(rotation) {
case 0: return MDP_ROT_NOP;
case HAL_TRANSFORM_ROT_90: return MDP_ROT_90;
case HAL_TRANSFORM_ROT_180: return MDP_ROT_180;
case HAL_TRANSFORM_ROT_270: return MDP_ROT_270;
default: return -1;
break;
}
break;
}
return -1;
}
#define LOG_TAG "OverlayLIB"
static void reportError(const char* message) {
LOGE( "%s", message);
}
using namespace overlay;
Overlay::Overlay() : mChannelUP(false), mHDMIConnected(false) {
}
Overlay::~Overlay() {
closeChannel();
}
int Overlay::getFBWidth(int channel) const {
return objOvCtrlChannel[channel].getFBWidth();
}
int Overlay::getFBHeight(int channel) const {
return objOvCtrlChannel[channel].getFBHeight();
}
bool Overlay::startChannel(int w, int h, int format, int fbnum, bool norot, bool uichannel, unsigned int format3D) {
mChannelUP = objOvCtrlChannel[0].startControlChannel(w, h, format, fbnum, norot, format3D);
if (!mChannelUP) {
LOGE("startChannel for fb0 failed");
return mChannelUP;
}
return objOvDataChannel[0].startDataChannel(objOvCtrlChannel[0], fbnum, norot, uichannel);
}
bool Overlay::startChannelHDMI(int w, int h, int format, bool norot) {
if(!mHDMIConnected) {
LOGE(" HDMI has been disabled - close the channel");
objOvCtrlChannel[1].closeControlChannel();
objOvDataChannel[1].closeDataChannel();
return true;
}
bool ret = startChannel(w, h, format, 0, norot);
if(ret) {
if (!objOvCtrlChannel[1].startControlChannel(w, h, format, 1, 1)) {
LOGE("Failed to start control channel for framebuffer 1");
objOvCtrlChannel[1].closeControlChannel();
return false;
} else {
if(!objOvDataChannel[1].startDataChannel(objOvCtrlChannel[1], 1, 1)) {
LOGE("Failed to start data channel for framebuffer 1");
return false;
}
overlay_rect rect;
if(objOvCtrlChannel[1].getAspectRatioPosition(w, h, format, &rect)) {
if(!objOvCtrlChannel[1].setPosition(rect.x, rect.y, rect.width, rect.height)) {
LOGE("Failed to upscale for framebuffer 1");
return false;
}
}
}
}
return ret;
}
bool Overlay::closeChannel() {
if (!mChannelUP)
return true;
objOvCtrlChannel[0].closeControlChannel();
objOvDataChannel[0].closeDataChannel();
objOvCtrlChannel[1].closeControlChannel();
objOvDataChannel[1].closeDataChannel();
mChannelUP = false;
return true;
}
bool Overlay::getPosition(int& x, int& y, uint32_t& w, uint32_t& h) {
return objOvCtrlChannel[0].getPosition(x, y, w, h);
}
bool Overlay::getOrientation(int& orientation) const {
return objOvCtrlChannel[0].getOrientation(orientation);
}
bool Overlay::setPosition(int x, int y, uint32_t w, uint32_t h) {
return objOvCtrlChannel[0].setPosition(x, y, w, h);
}
bool Overlay::setSource(uint32_t w, uint32_t h, int format, int orientation, bool hdmiConnected) {
if ((hdmiConnected != mHDMIConnected) || !objOvCtrlChannel[0].setSource(w, h, format, orientation)) {
closeChannel();
mChannelUP = false;
mHDMIConnected = hdmiConnected;
if (mHDMIConnected) {
return startChannelHDMI(w, h, format, !orientation);
} else {
return startChannel(w, h, format, 0, !orientation);
}
}
else
return true;
}
bool Overlay::setCrop(uint32_t x, uint32_t y, uint32_t w, uint32_t h) {
if (!mChannelUP)
return false;
if(mHDMIConnected) {
objOvDataChannel[1].setCrop(x, y, w, h);
}
return objOvDataChannel[0].setCrop(x, y, w, h);
}
bool Overlay::setParameter(int param, int value) {
return objOvCtrlChannel[0].setParameter(param, value);
}
bool Overlay::setOrientation(int value) {
return objOvCtrlChannel[0].setParameter(OVERLAY_TRANSFORM, value);
}
bool Overlay::setFd(int fd) {
return objOvDataChannel[0].setFd(fd);
}
bool Overlay::queueBuffer(uint32_t offset) {
return objOvDataChannel[0].queueBuffer(offset);
}
bool Overlay::queueBuffer(buffer_handle_t buffer) {
private_handle_t const* hnd = reinterpret_cast
<private_handle_t const*>(buffer);
const size_t offset = hnd->offset;
const int fd = hnd->fd;
bool ret = true;
if(mHDMIConnected) {
ret = objOvDataChannel[1].setFd(fd);
if(!ret) {
reportError("Overlay::queueBuffer channel 1 setFd failed");
return false;
}
ret = objOvDataChannel[1].queueBuffer(offset);
}
if (ret && setFd(fd)) {
return queueBuffer(offset);
}
return false;
}
OverlayControlChannel::OverlayControlChannel() : mNoRot(false), mFD(-1), mRotFD(-1), mFormat3D(0) {
memset(&mOVInfo, 0, sizeof(mOVInfo));
memset(&mRotInfo, 0, sizeof(mRotInfo));
}
OverlayControlChannel::~OverlayControlChannel() {
closeControlChannel();
}
bool OverlayControlChannel::getAspectRatioPosition(int w, int h, int format, overlay_rect *rect)
{
int width = w, height = h, x, y;
int fbWidthHDMI = getFBWidth();
int fbHeightHDMI = getFBHeight();
// width and height for YUV TILE format
int tempWidth = w, tempHeight = h;
/* Calculate the width and height if it is YUV TILE format*/
if(format == HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED) {
tempWidth = w - ( (((w-1)/64 +1)*64) - w);
tempHeight = h - ((((h-1)/32 +1)*32) - h);
}
if (width * fbHeightHDMI > fbWidthHDMI * height) {
height = fbWidthHDMI * height / width;
EVEN_OUT(height);
width = fbWidthHDMI;
} else if (width * fbHeightHDMI < fbWidthHDMI * height) {
width = fbHeightHDMI * width / height;
EVEN_OUT(width);
height = fbHeightHDMI;
} else {
width = fbWidthHDMI;
height = fbHeightHDMI;
}
/* Scaling of upto a max of 8 times supported */
if(width >(tempWidth * HW_OVERLAY_MAGNIFICATION_LIMIT)){
width = HW_OVERLAY_MAGNIFICATION_LIMIT * tempWidth;
}
if(height >(tempHeight*HW_OVERLAY_MAGNIFICATION_LIMIT)) {
height = HW_OVERLAY_MAGNIFICATION_LIMIT * tempHeight;
}
if (width > fbWidthHDMI) width = fbWidthHDMI;
if (height > fbHeightHDMI) height = fbHeightHDMI;
x = (fbWidthHDMI - width) / 2;
y = (fbHeightHDMI - height) / 2;
rect->x = x;
rect->y = y;
rect->width = width;
rect->height = height;
return true;
}
bool OverlayControlChannel::openDevices(int fbnum) {
if (fbnum < 0)
return false;
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) {
reportError("Cant open framebuffer ");
return false;
}
fb_fix_screeninfo finfo;
if (ioctl(mFD, FBIOGET_FSCREENINFO, &finfo) == -1) {
reportError("FBIOGET_FSCREENINFO on fb1 failed");
close(mFD);
mFD = -1;
return false;
}
fb_var_screeninfo vinfo;
if (ioctl(mFD, FBIOGET_VSCREENINFO, &vinfo) == -1) {
reportError("FBIOGET_VSCREENINFO on fb1 failed");
close(mFD);
mFD = -1;
return false;
}
mFBWidth = vinfo.xres;
mFBHeight = vinfo.yres;
mFBbpp = vinfo.bits_per_pixel;
mFBystride = finfo.line_length;
if (!mNoRot) {
mRotFD = open("/dev/msm_rotator", O_RDWR, 0);
if (mRotFD < 0) {
reportError("Cant open rotator device");
close(mFD);
mFD = -1;
return false;
}
}
return true;
}
bool OverlayControlChannel::setOverlayInformation(int w, int h,
int format, int flags, int zorder) {
int origW, origH, xoff, yoff;
mOVInfo.id = MSMFB_NEW_REQUEST;
mOVInfo.src.width = w;
mOVInfo.src.height = h;
mOVInfo.src_rect.x = 0;
mOVInfo.src_rect.y = 0;
mOVInfo.dst_rect.x = 0;
mOVInfo.dst_rect.y = 0;
mOVInfo.dst_rect.w = w;
mOVInfo.dst_rect.h = h;
if(format == MDP_Y_CRCB_H2V2_TILE) {
if (mNoRot) {
mOVInfo.src_rect.w = w - ( (((w-1)/64 +1)*64) - w);
mOVInfo.src_rect.h = h - ((((h-1)/32 +1)*32) - h);
mOVInfo.src.format = MDP_Y_CRCB_H2V2_TILE;
} else {
mOVInfo.src_rect.w = w;
mOVInfo.src_rect.h = h;
mOVInfo.src.width = (((w-1)/64 +1)*64);
mOVInfo.src.height = (((h-1)/32 +1)*32);
mOVInfo.src_rect.x = mOVInfo.src.width - w;
mOVInfo.src_rect.y = mOVInfo.src.height - h;
mOVInfo.src.format = MDP_Y_CRCB_H2V2;
}
} else {
mOVInfo.src_rect.w = w;
mOVInfo.src_rect.h = h;
mOVInfo.src.format = format;
}
if (w > mFBWidth)
mOVInfo.dst_rect.w = mFBWidth;
if (h > mFBHeight)
mOVInfo.dst_rect.h = mFBHeight;
mOVInfo.z_order = zorder;
mOVInfo.alpha = 0xff;
mOVInfo.transp_mask = 0xffffffff;
mOVInfo.flags = flags;
if (!isRGBType(format))
mOVInfo.flags |= MDP_OV_PLAY_NOWAIT;
mOVInfo.is_fg = 0;
mSize = get_size(format, w, h);
return true;
}
bool OverlayControlChannel::startOVRotatorSessions(int w, int h,
int format) {
bool ret = true;
if (ioctl(mFD, MSMFB_OVERLAY_SET, &mOVInfo)) {
reportError("startOVRotatorSessions, Overlay set failed");
ret = false;
}
else if (mNoRot)
return true;
if (ret) {
mRotInfo.src.format = format;
mRotInfo.src.width = w;
mRotInfo.src.height = h;
mRotInfo.src_rect.w = w;
mRotInfo.src_rect.h = h;
mRotInfo.dst.width = w;
mRotInfo.dst.height = h;
if(format == MDP_Y_CRCB_H2V2_TILE) {
mRotInfo.src.width = (((w-1)/64 +1)*64);
mRotInfo.src.height = (((h-1)/32 +1)*32);
mRotInfo.src_rect.w = (((w-1)/64 +1)*64);
mRotInfo.src_rect.h = (((h-1)/32 +1)*32);
mRotInfo.dst.width = (((w-1)/64 +1)*64);
mRotInfo.dst.height = (((h-1)/32 +1)*32);
mRotInfo.dst.format = MDP_Y_CRCB_H2V2;
} else {
mRotInfo.dst.format = format;
}
mRotInfo.dst_x = 0;
mRotInfo.dst_y = 0;
mRotInfo.src_rect.x = 0;
mRotInfo.src_rect.y = 0;
mRotInfo.rotations = 0;
mRotInfo.enable = 0;
mRotInfo.session_id = 0;
int result = ioctl(mRotFD, MSM_ROTATOR_IOCTL_START, &mRotInfo);
if (result) {
reportError("Rotator session failed");
ret = false;
}
else
return ret;
}
closeControlChannel();
return ret;
}
bool OverlayControlChannel::startControlChannel(int w, int h,
int format, int fbnum, bool norot,
unsigned int format3D, int zorder) {
mNoRot = norot;
fb_fix_screeninfo finfo;
fb_var_screeninfo vinfo;
int hw_format;
int flags = 0;
int colorFormat = format;
if (format & INTERLACE_MASK) {
flags |= MDP_DEINTERLACE;
// Get the actual format
colorFormat = format ^ HAL_PIXEL_FORMAT_INTERLACE;
}
hw_format = get_mdp_format(colorFormat);
if (hw_format < 0) {
reportError("Unsupported format");
return false;
}
mFormat3D = format3D;
if (!mFormat3D) {
// Set the share bit for sharing the VG pipe
flags |= MDP_OV_PIPE_SHARE;
}
if (!openDevices(fbnum))
return false;
if (!setOverlayInformation(w, h, hw_format, flags, zorder))
return false;
return startOVRotatorSessions(w, h, hw_format);
}
bool OverlayControlChannel::closeControlChannel() {
if (!isChannelUP())
return true;
if (!mNoRot && mRotFD > 0) {
ioctl(mRotFD, MSM_ROTATOR_IOCTL_FINISH, &(mRotInfo.session_id));
close(mRotFD);
mRotFD = -1;
}
int ovid = mOVInfo.id;
int ret = ioctl(mFD, MSMFB_OVERLAY_UNSET, &ovid);
close(mFD);
memset(&mOVInfo, 0, sizeof(mOVInfo));
memset(&mRotInfo, 0, sizeof(mRotInfo));
mFD = -1;
return true;
}
bool OverlayControlChannel::setSource(uint32_t w, uint32_t h, int format, int orientation) {
format = get_mdp_format(format);
if ((orientation == mOrientation) && ((orientation == MDP_ROT_90)
|| (orientation == MDP_ROT_270))) {
if (format == MDP_Y_CRCB_H2V2_TILE) {
format = MDP_Y_CRCB_H2V2;
w = (((w-1)/64 +1)*64);
h = (((h-1)/32 +1)*32);
}
int tmp = w;
w = h;
h = tmp;
}
if (w == mOVInfo.src.width && h == mOVInfo.src.height
&& format == mOVInfo.src.format && orientation == mOrientation)
return true;
mOrientation = orientation;
return false;
}
bool OverlayControlChannel::setPosition(int x, int y, uint32_t w, uint32_t h) {
int width = w, height = h;
if (!isChannelUP() ||
(x < 0) || (y < 0) || ((x + w) > mFBWidth) ||
((y + h) > mFBHeight)) {
reportError("setPosition failed");
return false;
}
mdp_overlay ov;
ov.id = mOVInfo.id;
if (ioctl(mFD, MSMFB_OVERLAY_GET, &ov)) {
reportError("setPosition, overlay GET failed");
return false;
}
/* Scaling of upto a max of 8 times supported */
if(w >(ov.src_rect.w * HW_OVERLAY_MAGNIFICATION_LIMIT)){
w = HW_OVERLAY_MAGNIFICATION_LIMIT * ov.src_rect.w;
x = (mFBWidth - w) / 2;
}
if(h >(ov.src_rect.h * HW_OVERLAY_MAGNIFICATION_LIMIT)) {
h = HW_OVERLAY_MAGNIFICATION_LIMIT * ov.src_rect.h;
y = (mFBHeight - h) / 2;
}
ov.dst_rect.x = x;
ov.dst_rect.y = y;
ov.dst_rect.w = w;
ov.dst_rect.h = h;
if (ioctl(mFD, MSMFB_OVERLAY_SET, &ov)) {
reportError("setPosition, Overlay SET failed");
return false;
}
mOVInfo = ov;
return true;
}
void OverlayControlChannel::swapOVRotWidthHeight() {
int tmp = mOVInfo.src.width;
mOVInfo.src.width = mOVInfo.src.height;
mOVInfo.src.height = tmp;
tmp = mOVInfo.src_rect.h;
mOVInfo.src_rect.h = mOVInfo.src_rect.w;
mOVInfo.src_rect.w = tmp;
tmp = mRotInfo.dst.width;
mRotInfo.dst.width = mRotInfo.dst.height;
mRotInfo.dst.height = tmp;
}
bool OverlayControlChannel::setParameter(int param, int value) {
if (!isChannelUP())
return false;
mdp_overlay ov;
ov.id = mOVInfo.id;
if (ioctl(mFD, MSMFB_OVERLAY_GET, &ov)) {
reportError("setParameter, overlay GET failed");
return false;
}
mOVInfo = ov;
switch (param) {
case OVERLAY_DITHER:
break;
case OVERLAY_TRANSFORM:
{
int val = mOVInfo.user_data[0];
if (value && mNoRot)
return true;
int rot = value;
int flip = 0;
if(value & HAL_TRANSFORM_FLIP_SRC_H) {
flip = HAL_TRANSFORM_FLIP_H;
} else if(value & HAL_TRANSFORM_FLIP_SRC_V) {
flip = HAL_TRANSFORM_FLIP_V;
}
rot = value & HAL_TRANSFORM_ROT_MASK;
switch(rot) {
case 0:
{
if (val == MDP_ROT_90) {
int tmp = mOVInfo.src_rect.y;
mOVInfo.src_rect.y = mOVInfo.src.width -
(mOVInfo.src_rect.x + mOVInfo.src_rect.w);
mOVInfo.src_rect.x = tmp;
swapOVRotWidthHeight();
}
else if (val == MDP_ROT_270) {
int tmp = mOVInfo.src_rect.x;
mOVInfo.src_rect.x = mOVInfo.src.height - (
mOVInfo.src_rect.y + mOVInfo.src_rect.h);
mOVInfo.src_rect.y = tmp;
swapOVRotWidthHeight();
}
break;
}
case OVERLAY_TRANSFORM_ROT_90:
{
if (val == MDP_ROT_270) {
mOVInfo.src_rect.x = mOVInfo.src.width - (
mOVInfo.src_rect.x + mOVInfo.src_rect.w);
mOVInfo.src_rect.y = mOVInfo.src.height - (
mOVInfo.src_rect.y + mOVInfo.src_rect.h);
}
else if (val == MDP_ROT_NOP || val == MDP_ROT_180) {
int tmp = mOVInfo.src_rect.x;
mOVInfo.src_rect.x = mOVInfo.src.height -
(mOVInfo.src_rect.y + mOVInfo.src_rect.h);
mOVInfo.src_rect.y = tmp;
swapOVRotWidthHeight();
}
break;
}
case OVERLAY_TRANSFORM_ROT_180:
{
if (val == MDP_ROT_270) {
int tmp = mOVInfo.src_rect.y;
mOVInfo.src_rect.y = mOVInfo.src.width -
(mOVInfo.src_rect.x + mOVInfo.src_rect.w);
mOVInfo.src_rect.x = tmp;
swapOVRotWidthHeight();
}
else if (val == MDP_ROT_90) {
int tmp = mOVInfo.src_rect.x;
mOVInfo.src_rect.x = mOVInfo.src.height - (
mOVInfo.src_rect.y + mOVInfo.src_rect.h);
mOVInfo.src_rect.y = tmp;
swapOVRotWidthHeight();
}
break;
}
case OVERLAY_TRANSFORM_ROT_270:
{
if (val == MDP_ROT_90) {
mOVInfo.src_rect.y = mOVInfo.src.height -
(mOVInfo.src_rect.y + mOVInfo.src_rect.h);
mOVInfo.src_rect.x = mOVInfo.src.width -
(mOVInfo.src_rect.x + mOVInfo.src_rect.w);
}
else if (val == MDP_ROT_NOP || val == MDP_ROT_180) {
int tmp = mOVInfo.src_rect.y;
mOVInfo.src_rect.y = mOVInfo.src.width - (
mOVInfo.src_rect.x + mOVInfo.src_rect.w);
mOVInfo.src_rect.x = tmp;
swapOVRotWidthHeight();
}
break;
}
default: return false;
}
int mdp_format = get_mdp_orientation(rot, flip);
if(mdp_format == -1)
return false;
mOVInfo.user_data[0] = mdp_format;
mRotInfo.rotations = mOVInfo.user_data[0];
if (mOVInfo.user_data[0])
mRotInfo.enable = 1;
else {
if(mRotInfo.src.format == MDP_Y_CRCB_H2V2_TILE)
mOVInfo.src.format = MDP_Y_CRCB_H2V2_TILE;
mRotInfo.enable = 0;
}
if (ioctl(mRotFD, MSM_ROTATOR_IOCTL_START, &mRotInfo)) {
reportError("setParameter, rotator start failed");
return false;
}
if (ioctl(mFD, MSMFB_OVERLAY_SET, &mOVInfo)) {
reportError("setParameter, overlay set failed");
return false;
}
break;
}
default:
reportError("Unsupproted param");
return false;
}
return true;
}
bool OverlayControlChannel::getPosition(int& x, int& y,
uint32_t& w, uint32_t& h) {
if (!isChannelUP())
return false;
mdp_overlay ov;
ov.id = mOVInfo.id;
if (ioctl(mFD, MSMFB_OVERLAY_GET, &ov)) {
reportError("getPosition, overlay GET failed");
return false;
}
mOVInfo = ov;
x = mOVInfo.dst_rect.x;
y = mOVInfo.dst_rect.y;
w = mOVInfo.dst_rect.w;
h = mOVInfo.dst_rect.h;
return true;
}
bool OverlayControlChannel::getOrientation(int& orientation) const {
if (!isChannelUP())
return false;
mdp_overlay ov;
ov.id = mOVInfo.id;
if (ioctl(mFD, MSMFB_OVERLAY_GET, &ov)) {
reportError("getOrientation, overlay GET failed");
return false;
}
orientation = ov.user_data[0];
return true;
}
bool OverlayControlChannel::getOvSessionID(int& sessionID) const {
if (!isChannelUP())
return false;
sessionID = mOVInfo.id;
return true;
}
bool OverlayControlChannel::getRotSessionID(int& sessionID) const {
if (!isChannelUP())
return false;
sessionID = mRotInfo.session_id;
return true;
}
bool OverlayControlChannel::getSize(int& size) const {
if (!isChannelUP())
return false;
size = mSize;
return true;
}
OverlayDataChannel::OverlayDataChannel() : mNoRot(false), mFD(-1), mRotFD(-1),
mPmemFD(-1), mPmemAddr(0) {
}
OverlayDataChannel::~OverlayDataChannel() {
closeDataChannel();
}
bool OverlayDataChannel::startDataChannel(
const OverlayControlChannel& objOvCtrlChannel,
int fbnum, bool norot, bool uichannel) {
int ovid, rotid, size;
mNoRot = norot;
memset(&mOvData, 0, sizeof(mOvData));
memset(&mOvDataRot, 0, sizeof(mOvDataRot));
memset(&mRotData, 0, sizeof(mRotData));
if (objOvCtrlChannel.getOvSessionID(ovid) &&
objOvCtrlChannel.getRotSessionID(rotid) &&
objOvCtrlChannel.getSize(size)) {
return startDataChannel(ovid, rotid, size, fbnum, norot, uichannel);
}
else
return false;
}
bool OverlayDataChannel::openDevices(int fbnum, bool uichannel) {
if (fbnum < 0)
return false;
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) {
reportError("Cant open framebuffer ");
return false;
}
if (!mNoRot) {
mRotFD = open("/dev/msm_rotator", O_RDWR, 0);
if (mRotFD < 0) {
reportError("Cant open rotator device");
close(mFD);
mFD = -1;
return false;
}
mPmemAddr = MAP_FAILED;
if(!uichannel) {
mPmemFD = open("/dev/pmem_smipool", O_RDWR | O_SYNC);
if(mPmemFD >= 0)
mPmemAddr = (void *) mmap(NULL, mPmemOffset * 2, PROT_READ | PROT_WRITE,
MAP_SHARED, mPmemFD, 0);
}
if (mPmemAddr == MAP_FAILED) {
mPmemFD = open("/dev/pmem_adsp", O_RDWR | O_SYNC);
if (mPmemFD < 0) {
reportError("Cant open pmem_adsp ");
close(mFD);
mFD = -1;
close(mRotFD);
mRotFD = -1;
return false;
} else {
mPmemAddr = (void *) mmap(NULL, mPmemOffset * 2, PROT_READ | PROT_WRITE,
MAP_SHARED, mPmemFD, 0);
if (mPmemAddr == MAP_FAILED) {
reportError("Cant map pmem_adsp ");
close(mFD);
mFD = -1;
close(mPmemFD);
mPmemFD = -1;
close(mRotFD);
mRotFD = -1;
return false;
}
}
}
mOvDataRot.data.memory_id = mPmemFD;
mRotData.dst.memory_id = mPmemFD;
mRotData.dst.offset = 0;
}
return true;
}
bool OverlayDataChannel::startDataChannel(int ovid, int rotid, int size,
int fbnum, bool norot, bool uichannel) {
memset(&mOvData, 0, sizeof(mOvData));
memset(&mOvDataRot, 0, sizeof(mOvDataRot));
memset(&mRotData, 0, sizeof(mRotData));
mNoRot = norot;
mOvData.data.memory_id = -1;
mOvData.id = ovid;
mOvDataRot = mOvData;
mPmemOffset = size;
mRotData.session_id = rotid;
return openDevices(fbnum, uichannel);
}
bool OverlayDataChannel::closeDataChannel() {
if (!isChannelUP())
return true;
if (!mNoRot && mRotFD > 0) {
munmap(mPmemAddr, mPmemOffset * 2);
close(mPmemFD);
mPmemFD = -1;
close(mRotFD);
mRotFD = -1;
}
close(mFD);
mFD = -1;
memset(&mOvData, 0, sizeof(mOvData));
memset(&mOvDataRot, 0, sizeof(mOvDataRot));
memset(&mRotData, 0, sizeof(mRotData));
return true;
}
bool OverlayDataChannel::setFd(int fd) {
mOvData.data.memory_id = fd;
return true;
}
bool OverlayDataChannel::queueBuffer(uint32_t offset) {
if ((!isChannelUP()) || mOvData.data.memory_id < 0) {
reportError("QueueBuffer failed, either channel is not set or no file descriptor to read from");
return false;
}
msmfb_overlay_data *odPtr;
mOvData.data.offset = offset;
odPtr = &mOvData;
if (!mNoRot) {
mRotData.src.memory_id = mOvData.data.memory_id;
mRotData.src.offset = offset;
mRotData.dst.offset = (mRotData.dst.offset) ? 0 : mPmemOffset;
int result = ioctl(mRotFD,
MSM_ROTATOR_IOCTL_ROTATE, &mRotData);
if (!result) {
mOvDataRot.data.offset = (uint32_t) mRotData.dst.offset;
odPtr = &mOvDataRot;
}
}
if (ioctl(mFD, MSMFB_OVERLAY_PLAY, odPtr)) {
reportError("overlay play failed.");
return false;
}
return true;
}
bool OverlayDataChannel::setCrop(uint32_t x, uint32_t y, uint32_t w, uint32_t h) {
if (!isChannelUP()) {
reportError("Channel not set");
return false;
}
mdp_overlay ov;
ov.id = mOvData.id;
if (ioctl(mFD, MSMFB_OVERLAY_GET, &ov)) {
reportError("setCrop, overlay GET failed");
return false;
}
if (ov.user_data[0] == MDP_ROT_90) {
if (ov.src.width < (y + h))
return false;
uint32_t tmp = x;
x = ov.src.width - (y + h);
y = tmp;
tmp = w;
w = h;
h = tmp;
}
else if (ov.user_data[0] == MDP_ROT_270) {
if (ov.src.height < (x + w))
return false;
uint32_t tmp = y;
y = ov.src.height - (x + w);
x = tmp;
tmp = w;
w = h;
h = tmp;
}
if ((ov.src_rect.x == x) &&
(ov.src_rect.y == y) &&
(ov.src_rect.w == w) &&
(ov.src_rect.h == h))
return true;
ov.src_rect.x = x;
ov.src_rect.y = y;
ov.src_rect.w = w;
ov.src_rect.h = h;
/* Scaling of upto a max of 8 times supported */
if(ov.dst_rect.w >(ov.src_rect.w * HW_OVERLAY_MAGNIFICATION_LIMIT)){
ov.dst_rect.w = HW_OVERLAY_MAGNIFICATION_LIMIT * ov.src_rect.w;
}
if(ov.dst_rect.h >(ov.src_rect.h * HW_OVERLAY_MAGNIFICATION_LIMIT)) {
ov.dst_rect.h = HW_OVERLAY_MAGNIFICATION_LIMIT * ov.src_rect.h;
}
if (ioctl(mFD, MSMFB_OVERLAY_SET, &ov)) {
reportError("setCrop, overlay set error");
return false;
}
return true;
}