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android_hardware_qcom_display/libhwcomposer/hwcomposer.cpp
Saurabh Shah 10d91371c2 Fix secure flags value in overlay. 
Remove the member "secure" from overlay_buf_info.
This member was used to indicate secure content and this info was
later extracted out into existing flags. Now we use the same flags,
right from hwc to mark secure content.

The member above had junk value, since it wasnt initialized.
This caused, normal videos to fail with IOMMU. Removal of the member and
marking the existing flags fixes this.

Change-Id: Ib5a2439fde7114c20e478fbee5e4d276680c316a
2012-06-02 23:39:24 -05:00

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/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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 <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <hardware/hardware.h>
#include <fcntl.h>
#include <errno.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <cutils/properties.h>
#include <hardware/hwcomposer.h>
#include <overlayLib.h>
#include <overlayLibUI.h>
#include <copybit.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <ui/android_native_buffer.h>
#include <gralloc_priv.h>
#include <genlock.h>
#include <qcom_ui.h>
#include <gr.h>
#include <utils/profiler.h>
#include <utils/IdleTimer.h>
/*****************************************************************************/
#define ALIGN(x, align) (((x) + ((align)-1)) & ~((align)-1))
#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
#ifdef COMPOSITION_BYPASS
#define MAX_BYPASS_LAYERS 3
#define BYPASS_DEBUG 0
#define BYPASS_INDEX_OFFSET 4
#define DEFAULT_IDLE_TIME 2000
enum BypassState {
BYPASS_ON,
BYPASS_OFF,
BYPASS_OFF_PENDING,
};
enum BypassBufferLockState {
BYPASS_BUFFER_UNLOCKED,
BYPASS_BUFFER_LOCKED,
};
#endif
enum HWCLayerType{
HWC_SINGLE_VIDEO = 0x1,
HWC_ORIG_RESOLUTION = 0x2,
HWC_S3D_LAYER = 0x4,
HWC_STOP_UI_MIRRORING_MASK = 0xF
};
enum eHWCOverlayStatus {
HWC_OVERLAY_OPEN,
HWC_OVERLAY_PREPARE_TO_CLOSE,
HWC_OVERLAY_CLOSED
};
struct hwc_context_t {
hwc_composer_device_t device;
/* our private state goes below here */
overlay::Overlay* mOverlayLibObject;
native_handle_t *previousOverlayHandle;
native_handle_t *currentOverlayHandle;
int yuvBufferCount;
#ifdef COMPOSITION_BYPASS
overlay::OverlayUI* mOvUI[MAX_BYPASS_LAYERS];
native_handle_t* previousBypassHandle[MAX_BYPASS_LAYERS];
BypassBufferLockState bypassBufferLockState[MAX_BYPASS_LAYERS];
int layerindex[MAX_BYPASS_LAYERS];
int nPipesUsed;
BypassState bypassState;
IdleTimer idleTimer;
bool idleTimeOut;
#endif
#if defined HDMI_DUAL_DISPLAY
external_display_type mHDMIEnabled; // Type of external display
bool pendingHDMI;
#endif
int previousLayerCount;
eHWCOverlayStatus hwcOverlayStatus;
int swapInterval;
};
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
};
struct private_hwc_module_t {
hwc_module_t base;
copybit_device_t *copybitEngine;
framebuffer_device_t *fbDevice;
int compositionType;
bool isBypassEnabled; //from build.prop ro.sf.compbypass.enable
};
struct private_hwc_module_t HAL_MODULE_INFO_SYM = {
base: {
common: {
tag: HARDWARE_MODULE_TAG,
version_major: 1,
version_minor: 0,
id: HWC_HARDWARE_MODULE_ID,
name: "Hardware Composer Module",
author: "The Android Open Source Project",
methods: &hwc_module_methods,
}
},
copybitEngine: NULL,
fbDevice: NULL,
compositionType: 0,
isBypassEnabled: false,
};
//Only at this point would the compiler know all storage class sizes.
//The header has hooks which need to know those beforehand.
#include <external_display_only.h>
/*****************************************************************************/
static void dump_layer(hwc_layer_t const* l) {
LOGD("\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);
}
static inline int min(const int& a, const int& b) {
return (a < b) ? a : b;
}
static inline int max(const int& a, const int& b) {
return (a > b) ? a : b;
}
inline void getLayerResolution(const hwc_layer_t* layer, int& width, int& height)
{
hwc_rect_t displayFrame = layer->displayFrame;
width = displayFrame.right - displayFrame.left;
height = displayFrame.bottom - displayFrame.top;
}
#ifdef COMPOSITION_BYPASS
static void timeout_handler(void *udata) {
LOGD("Comp bypass timeout_handler...");
struct hwc_context_t* ctx = (struct hwc_context_t*)(udata);
if(!ctx) {
LOGE("%s: received empty data in timer callback", __FUNCTION__);
return;
}
hwc_procs* proc = (hwc_procs*)ctx->device.reserved_proc[0];
if(!proc) {
LOGE("%s: HWC proc not registered", __FUNCTION__);
return;
}
/* Trigger SF to redraw the current frame */
ctx->idleTimeOut = true;
proc->invalidate(proc);
LOGD("Comp bypass timeout_handler...Done");
}
void setLayerbypassIndex(hwc_layer_t* layer, const int bypass_index)
{
layer->flags &= ~HWC_BYPASS_INDEX_MASK;
layer->flags |= bypass_index << BYPASS_INDEX_OFFSET;
}
int getLayerbypassIndex(hwc_layer_t* layer)
{
int byp_index = -1;
if(layer->flags & HWC_COMP_BYPASS) {
byp_index = ((layer->flags & HWC_BYPASS_INDEX_MASK) >> BYPASS_INDEX_OFFSET);
byp_index = (byp_index < MAX_BYPASS_LAYERS ? byp_index : -1 );
}
return byp_index;
}
void unlockPreviousBypassBuffers(hwc_context_t* ctx) {
// Unlock the previous bypass buffers. We can blindly unlock the buffers
// here, because buffers will be in this list only if the lock was
// successfully acquired.
for(int i = 0; i < MAX_BYPASS_LAYERS; i++) {
private_handle_t *hnd = (private_handle_t*) ctx->previousBypassHandle[i];
if (!hnd)
continue;
// Validate the handle to make sure it hasn't been deallocated.
if (private_handle_t::validate(hnd)) {
LOGE("%s: Unregistering invalid gralloc handle %p.", __FUNCTION__, hnd);
ctx->previousBypassHandle[i] = NULL;
continue;
}
// Check if the handle was locked previously
if (private_handle_t::PRIV_FLAGS_HWC_LOCK & hnd->flags) {
if (GENLOCK_FAILURE == genlock_unlock_buffer(hnd)) {
LOGE("%s: genlock_unlock_buffer failed", __FUNCTION__);
} else {
ctx->previousBypassHandle[i] = NULL;
// Reset the lock flag
hnd->flags &= ~private_handle_t::PRIV_FLAGS_HWC_LOCK;
}
}
}
}
void print_info(hwc_layer_t* layer)
{
hwc_rect_t sourceCrop = layer->sourceCrop;
hwc_rect_t displayFrame = layer->displayFrame;
int s_l = sourceCrop.left;
int s_t = sourceCrop.top;
int s_r = sourceCrop.right;
int s_b = sourceCrop.bottom;
int d_l = displayFrame.left;
int d_t = displayFrame.top;
int d_r = displayFrame.right;
int d_b = displayFrame.bottom;
LOGE_IF(BYPASS_DEBUG, "src:[%d,%d,%d,%d] (%d x %d) dst:[%d,%d,%d,%d] (%d x %d)",
s_l, s_t, s_r, s_b, (s_r - s_l), (s_b - s_t),
d_l, d_t, d_r, d_b, (d_r - d_l), (d_b - d_t));
}
//Crops source buffer against destination and FB boundaries
void calculate_crop_rects(hwc_rect_t& crop, hwc_rect_t& dst, int hw_w, int hw_h) {
int& crop_x = crop.left;
int& crop_y = 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_x = dst.left;
int& dst_y = dst.top;
int& dst_r = dst.right;
int& dst_b = dst.bottom;
int dst_w = dst.right - dst.left;
int dst_h = dst.bottom - dst.top;
if(dst_x < 0) {
float scale_x = crop_w * 1.0f / dst_w;
float diff_factor = (scale_x * abs(dst_x));
crop_x = crop_x + (int)diff_factor;
crop_w = crop_r - crop_x;
dst_x = 0;
dst_w = dst_r - dst_x;;
}
if(dst_r > hw_w) {
float scale_x = crop_w * 1.0f / dst_w;
float diff_factor = scale_x * (dst_r - hw_w);
crop_r = crop_r - diff_factor;
crop_w = crop_r - crop_x;
dst_r = hw_w;
dst_w = dst_r - dst_x;
}
if(dst_y < 0) {
float scale_y = crop_h * 1.0f / dst_h;
float diff_factor = scale_y * abs(dst_y);
crop_y = crop_y + diff_factor;
crop_h = crop_b - crop_y;
dst_y = 0;
dst_h = dst_b - dst_y;
}
if(dst_b > hw_h) {
float scale_y = crop_h * 1.0f / dst_h;
float diff_factor = scale_y * (dst_b - hw_h);
crop_b = crop_b - diff_factor;
crop_h = crop_b - crop_y;
dst_b = hw_h;
dst_h = dst_b - dst_y;
}
LOGE_IF(BYPASS_DEBUG,"crop: [%d,%d,%d,%d] dst:[%d,%d,%d,%d]",
crop_x, crop_y, crop_w, crop_h,dst_x, dst_y, dst_w, dst_h);
}
/*
* Configures pipe(s) for composition bypass
*/
static int prepareBypass(hwc_context_t *ctx, hwc_layer_t *layer,
int nPipeIndex, int vsync_wait, int isFG) {
if (ctx && ctx->mOvUI[nPipeIndex]) {
overlay::OverlayUI *ovUI = ctx->mOvUI[nPipeIndex];
private_hwc_module_t* hwcModule = reinterpret_cast<
private_hwc_module_t*>(ctx->device.common.module);
if (!hwcModule) {
LOGE("%s: NULL Module", __FUNCTION__);
return -1;
}
private_handle_t *hnd = (private_handle_t *)layer->handle;
if(!hnd) {
LOGE("%s: layer handle is NULL", __FUNCTION__);
return -1;
}
int hw_w = hwcModule->fbDevice->width;
int hw_h = hwcModule->fbDevice->height;
hwc_rect_t sourceCrop = layer->sourceCrop;
hwc_rect_t displayFrame = layer->displayFrame;
const int src_w = sourceCrop.right - sourceCrop.left;
const int src_h = sourceCrop.bottom - sourceCrop.top;
hwc_rect_t crop = sourceCrop;
int crop_w = crop.right - crop.left;
int crop_h = crop.bottom - crop.top;
hwc_rect_t dst = displayFrame;
int dst_w = dst.right - dst.left;
int dst_h = dst.bottom - dst.top;
if(hnd != NULL && (hnd->flags & private_handle_t::PRIV_FLAGS_NONCONTIGUOUS_MEM )) {
LOGE("%s: Unable to setup bypass due to non-pmem memory",__FUNCTION__);
return -1;
}
if(dst.left < 0 || dst.top < 0 || dst.right > hw_w || dst.bottom > hw_h) {
LOGE_IF(BYPASS_DEBUG,"%s: Destination has negative coordinates", __FUNCTION__);
calculate_crop_rects(crop, dst, hw_w, hw_h);
//Update calulated width and height
crop_w = crop.right - crop.left;
crop_h = crop.bottom - crop.top;
dst_w = dst.right - dst.left;
dst_h = dst.bottom - dst.top;
}
if( (dst_w > hw_w)|| (dst_h > hw_h)) {
LOGE_IF(BYPASS_DEBUG,"%s: Destination rectangle exceeds FB resolution", __FUNCTION__);
print_info(layer);
dst_w = hw_w;
dst_h = hw_h;
}
overlay_buffer_info info;
info.width = src_w;
info.height = src_h;
info.format = hnd->format;
info.size = hnd->size;
int fbnum = 0;
int orientation = layer->transform;
const bool useVGPipe =
#ifdef NO_BYPASS_CROPPING
(nPipeIndex != (MAX_BYPASS_LAYERS - 2));
#else
(nPipeIndex != (MAX_BYPASS_LAYERS - 1));
#endif
//only last layer should wait for vsync
const bool waitForVsync = vsync_wait;
const bool isFg = isFG;
//Just to differentiate zorders for different layers
const int zorder = nPipeIndex;
ovUI->setSource(info, orientation);
ovUI->setCrop(crop.left, crop.top, crop_w, crop_h);
ovUI->setDisplayParams(fbnum, waitForVsync, isFg, zorder, useVGPipe);
ovUI->setPosition(dst.left, dst.top, dst_w, dst_h);
LOGE_IF(BYPASS_DEBUG,"%s: Bypass set: crop[%d,%d,%d,%d] dst[%d,%d,%d,%d] waitforVsync: %d \
isFg: %d zorder: %d VG = %d nPipe: %d",__FUNCTION__,
crop.left, crop.top, crop_w, crop_h,
dst.left, dst.top, dst_w, dst_h,
waitForVsync, isFg, zorder, useVGPipe, nPipeIndex );
if(ovUI->commit() != overlay::NO_ERROR) {
LOGE("%s: Overlay Commit failed", __FUNCTION__);
return -1;
}
}
return 0;
}
#ifdef NO_BYPASS_CROPPING
inline bool isLayerCropped(const hwc_layer_t* layer, int hw_w, int hw_h) {
int dst_w, dst_h;
getLayerResolution(layer, dst_w, dst_h);
hwc_rect_t sourceCrop = layer->sourceCrop;
const int src_w = sourceCrop.right - sourceCrop.left;
const int src_h = sourceCrop.bottom - sourceCrop.top;
hwc_rect_t dst = layer->displayFrame;
return dst.left < 0 || dst.top < 0 || dst.right > hw_w || dst.bottom > hw_h ||
src_w > dst_w || src_h > dst_h;
}
#endif
/*
* Checks if doing comp. bypass is possible.
* It is possible if
* 1. No MDP pipe is used
* 2. Rotation is not needed
* 3. We have atmost MAX_BYPASS_LAYERS
*/
inline static bool isBypassDoable(hwc_composer_device_t *dev, const int yuvCount,
const hwc_layer_list_t* list) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
dev->common.module);
if(!ctx) {
LOGE("%s: hwc context is NULL", __FUNCTION__);
return false;
}
//Check if enabled in build.prop
if(hwcModule->isBypassEnabled == false) {
return false;
}
if(list->numHwLayers < 1) {
return false;
}
#if defined HDMI_DUAL_DISPLAY
//Disable bypass when HDMI is enabled
if(ctx->mHDMIEnabled || ctx->pendingHDMI) {
return false;
}
#endif
if(ExtDispOnly::isModeOn()) {
return false;
}
if(ctx->idleTimeOut) {
ctx->idleTimeOut = false;
return false;
}
#ifdef NO_BYPASS_CROPPING
int hw_w = hwcModule->fbDevice->width;
int hw_h = hwcModule->fbDevice->height;
#endif
//Bypass is not efficient if rotation or asynchronous mode is needed.
for(int i = 0; i < list->numHwLayers; ++i) {
if(list->hwLayers[i].transform) {
return false;
}
if(list->hwLayers[i].flags & HWC_LAYER_ASYNCHRONOUS) {
if (ctx->swapInterval > 0)
return false;
}
#ifdef NO_BYPASS_CROPPING
if (isLayerCropped(&(list->hwLayers[i]), hw_w, hw_h)) {
return false;
}
#endif
}
return (yuvCount == 0) && (ctx->hwcOverlayStatus == HWC_OVERLAY_CLOSED)
&& (list->numHwLayers <= MAX_BYPASS_LAYERS);
}
void setBypassLayerFlags(hwc_context_t* ctx, hwc_layer_list_t* list)
{
for(int index = 0 ; index < MAX_BYPASS_LAYERS; index++ )
{
int layer_index = ctx->layerindex[index];
if(layer_index >= 0) {
hwc_layer_t* layer = &(list->hwLayers[layer_index]);
layer->flags |= HWC_COMP_BYPASS;
layer->compositionType = HWC_USE_OVERLAY;
layer->hints |= HWC_HINT_CLEAR_FB;
}
}
if( list->numHwLayers > ctx->nPipesUsed ) {
list->flags &= ~HWC_SKIP_COMPOSITION; //Compose to FB
} else {
list->flags |= HWC_SKIP_COMPOSITION; // Dont
}
}
bool setupBypass(hwc_context_t* ctx, hwc_layer_list_t* list) {
int nPipeIndex, vsync_wait, isFG;
int numHwLayers = list->numHwLayers;
int nPipeAvailable = MAX_BYPASS_LAYERS;
for (int index = 0 ; (index < numHwLayers) && nPipeAvailable; index++) {
hwc_layer_t* layer = &(list->hwLayers[index]);
nPipeIndex = MAX_BYPASS_LAYERS - nPipeAvailable;
//Set VSYNC wait is needed only for the last pipe queued
vsync_wait = (nPipeIndex == (numHwLayers-1));
//Set isFG to true for layer with z-order zero
isFG = !index;
//Clear Bypass flags for the layer
layer->flags &= ~HWC_COMP_BYPASS;
layer->flags |= HWC_BYPASS_INDEX_MASK;
if( prepareBypass(ctx, &(list->hwLayers[index]), nPipeIndex, vsync_wait, isFG) != 0 ) {
LOGE_IF(BYPASS_DEBUG, "%s: layer %d failed to configure bypass for pipe index: %d",
__FUNCTION__, index, nPipeIndex);
return false;
} else {
ctx->layerindex[nPipeIndex] = index;
setLayerbypassIndex(layer, nPipeIndex);
nPipeAvailable--;
}
}
ctx->nPipesUsed = MAX_BYPASS_LAYERS - nPipeAvailable;
return true;
}
void unsetBypassLayerFlags(hwc_layer_list_t* list) {
if (!list)
return;
for (int index = 0 ; index < list->numHwLayers; index++) {
if(list->hwLayers[index].flags & HWC_COMP_BYPASS) {
list->hwLayers[index].flags &= ~HWC_COMP_BYPASS;
}
}
}
void unsetBypassBufferLockState(hwc_context_t* ctx) {
for (int i= 0; i< MAX_BYPASS_LAYERS; i++) {
ctx->bypassBufferLockState[i] = BYPASS_BUFFER_UNLOCKED;
}
}
void storeLockedBypassHandle(hwc_layer_list_t* list, hwc_context_t* ctx) {
if (!list)
return;
for(int index = 0; index < MAX_BYPASS_LAYERS; index++ ) {
hwc_layer_t layer = list->hwLayers[ctx->layerindex[index]];
if (layer.flags & HWC_COMP_BYPASS) {
private_handle_t *hnd = (private_handle_t*)layer.handle;
if (ctx->bypassBufferLockState[index] == BYPASS_BUFFER_LOCKED) {
ctx->previousBypassHandle[index] = (native_handle_t*)layer.handle;
hnd->flags |= private_handle_t::PRIV_FLAGS_HWC_LOCK;
} else {
ctx->previousBypassHandle[index] = NULL;
}
}
}
}
void closeExtraPipes(hwc_context_t* ctx) {
int pipes_used = ctx->nPipesUsed;
//Unused pipes must be of higher z-order
for (int i = pipes_used ; i < MAX_BYPASS_LAYERS; i++) {
private_handle_t *hnd = (private_handle_t*) ctx->previousBypassHandle[i];
if (hnd) {
if (!private_handle_t::validate(hnd)) {
if (GENLOCK_FAILURE == genlock_unlock_buffer(hnd)) {
LOGE("%s: genlock_unlock_buffer failed", __FUNCTION__);
} else {
ctx->previousBypassHandle[i] = NULL;
ctx->bypassBufferLockState[i] = BYPASS_BUFFER_UNLOCKED;
hnd->flags &= ~private_handle_t::PRIV_FLAGS_HWC_LOCK;
}
} else {
LOGE("%s: Unregistering invalid gralloc handle %p.",
__FUNCTION__, hnd);
ctx->previousBypassHandle[i] = NULL;
}
}
ctx->mOvUI[i]->closeChannel();
ctx->layerindex[i] = -1;
}
}
#endif //COMPOSITION_BYPASS
// Returns true if external panel is connected
static inline bool isExternalConnected(const hwc_context_t* ctx) {
#if defined HDMI_DUAL_DISPLAY
return (ctx->mHDMIEnabled != EXT_TYPE_NONE);
#endif
return false;
}
// Returns true if we have a skip layer
static inline bool isSkipLayer(const hwc_layer_t* layer) {
return (layer && (layer->flags & HWC_SKIP_LAYER));
}
// Returns true if the buffer is yuv
static inline bool isYuvBuffer(const private_handle_t* hnd) {
return (hnd && (hnd->bufferType == BUFFER_TYPE_VIDEO));
}
//Return true if buffer is marked locked
static inline bool isBufferLocked(const private_handle_t* hnd) {
return (hnd && (private_handle_t::PRIV_FLAGS_HWC_LOCK & hnd->flags));
}
static int getLayerS3DFormat (hwc_layer_t &layer) {
int s3dFormat = 0;
private_handle_t *hnd = (private_handle_t *)layer.handle;
if (hnd)
s3dFormat = FORMAT_3D_INPUT(hnd->format);
return s3dFormat;
}
//Mark layers for GPU composition but not if it is a 3D layer.
static inline void markForGPUComp(const hwc_context_t *ctx,
hwc_layer_list_t* list, const int limit) {
for(int i = 0; i < limit; i++) {
if( getLayerS3DFormat( list->hwLayers[i] ) ) {
continue;
}
else {
list->hwLayers[i].compositionType = HWC_FRAMEBUFFER;
list->hwLayers[i].hints &= ~HWC_HINT_CLEAR_FB;
}
}
}
static int setVideoOverlayStatusInGralloc(hwc_context_t* ctx, const bool enable) {
#if defined HDMI_DUAL_DISPLAY
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
ctx->device.common.module);
if(!hwcModule) {
LOGE("%s: invalid params", __FUNCTION__);
return -1;
}
framebuffer_device_t *fbDev = hwcModule->fbDevice;
if (!fbDev) {
LOGE("%s: fbDev is NULL", __FUNCTION__);
return -1;
}
// Inform the gralloc to stop or start UI mirroring
fbDev->videoOverlayStarted(fbDev, enable);
#endif
return 0;
}
static int hwc_closeOverlayChannels(hwc_context_t* ctx) {
#ifdef USE_OVERLAY
overlay::Overlay *ovLibObject = ctx->mOverlayLibObject;
if(!ovLibObject) {
LOGE("%s: invalid params", __FUNCTION__);
return -1;
}
if (HWC_OVERLAY_PREPARE_TO_CLOSE == ctx->hwcOverlayStatus) {
// Video mirroring is going on, and we do not have any layers to
// mirror directly. Close the current video channel and inform the
// gralloc to start UI mirroring
ovLibObject->closeChannel();
// Inform the gralloc that video overlay has stopped.
setVideoOverlayStatusInGralloc(ctx, false);
ctx->hwcOverlayStatus = HWC_OVERLAY_CLOSED;
}
#endif
return 0;
}
/*
* Configures mdp pipes
*/
static int prepareOverlay(hwc_context_t *ctx, hwc_layer_t *layer, const int flags) {
int ret = 0;
#ifdef COMPOSITION_BYPASS
if(ctx && (ctx->bypassState != BYPASS_OFF)) {
ctx->nPipesUsed = 0;
closeExtraPipes(ctx);
ctx->bypassState = BYPASS_OFF;
}
#endif
if (LIKELY(ctx && ctx->mOverlayLibObject)) {
private_hwc_module_t* hwcModule =
reinterpret_cast<private_hwc_module_t*>(ctx->device.common.module);
if (UNLIKELY(!hwcModule)) {
LOGE("prepareOverlay null module ");
return -1;
}
private_handle_t *hnd = (private_handle_t *)layer->handle;
overlay::Overlay *ovLibObject = ctx->mOverlayLibObject;
overlay_buffer_info info;
info.width = hnd->width;
info.height = hnd->height;
info.format = hnd->format;
info.size = hnd->size;
int hdmiConnected = 0;
#if defined HDMI_DUAL_DISPLAY
if(!ctx->pendingHDMI) //makes sure the UI channel is opened first
hdmiConnected = (int)ctx->mHDMIEnabled;
#endif
ret = ovLibObject->setSource(info, layer->transform,
hdmiConnected, flags);
if (!ret) {
LOGE("prepareOverlay setSource failed");
return -1;
}
ret = ovLibObject->setTransform(layer->transform);
if (!ret) {
LOGE("prepareOverlay setTransform failed transform %x",
layer->transform);
return -1;
}
hwc_rect_t sourceCrop = layer->sourceCrop;
ret = ovLibObject->setCrop(sourceCrop.left, sourceCrop.top,
(sourceCrop.right - sourceCrop.left),
(sourceCrop.bottom - sourceCrop.top));
if (!ret) {
LOGE("prepareOverlay setCrop failed");
return -1;
}
#if defined HDMI_DUAL_DISPLAY
// Send the device orientation to overlayLib
if(hwcModule) {
framebuffer_device_t *fbDev = reinterpret_cast<framebuffer_device_t*>
(hwcModule->fbDevice);
if(fbDev) {
private_module_t* m = reinterpret_cast<private_module_t*>(
fbDev->common.module);
if(m)
ovLibObject->setDeviceOrientation(m->orientation);
}
}
#endif
if (layer->flags & HWC_USE_ORIGINAL_RESOLUTION) {
framebuffer_device_t* fbDev = hwcModule->fbDevice;
ret = ovLibObject->setPosition(0, 0,
fbDev->width, fbDev->height);
} else {
hwc_rect_t displayFrame = layer->displayFrame;
ret = ovLibObject->setPosition(displayFrame.left, displayFrame.top,
(displayFrame.right - displayFrame.left),
(displayFrame.bottom - displayFrame.top));
}
if (!ret) {
LOGE("prepareOverlay setPosition failed");
return -1;
}
}
return 0;
}
void unlockPreviousOverlayBuffer(hwc_context_t* ctx)
{
private_handle_t *hnd = (private_handle_t*) ctx->previousOverlayHandle;
if (hnd) {
// Validate the handle before attempting to use it.
if (!private_handle_t::validate(hnd) && isBufferLocked(hnd)) {
if (GENLOCK_NO_ERROR == genlock_unlock_buffer(hnd)) {
//If previous is same as current, keep locked.
if(hnd != ctx->currentOverlayHandle) {
hnd->flags &= ~private_handle_t::PRIV_FLAGS_HWC_LOCK;
}
} else {
LOGE("%s: genlock_unlock_buffer failed", __FUNCTION__);
}
}
}
ctx->previousOverlayHandle = ctx->currentOverlayHandle;
ctx->currentOverlayHandle = NULL;
}
bool canSkipComposition(hwc_context_t* ctx, int yuvBufferCount, int currentLayerCount,
int numLayersNotUpdating)
{
if (!ctx) {
LOGE("canSkipComposition invalid context");
return false;
}
hwc_composer_device_t* dev = (hwc_composer_device_t *)(ctx);
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
dev->common.module);
if (hwcModule->compositionType == COMPOSITION_TYPE_CPU)
return false;
//Video / Camera case
if (yuvBufferCount == 1) {
//If the previousLayerCount is anything other than the current count, it
//means something changed and we need to compose atleast once to FB.
if (currentLayerCount != ctx->previousLayerCount) {
ctx->previousLayerCount = currentLayerCount;
return false;
}
// We either have only one overlay layer or we have
// all non-updating UI layers.
// We can skip the composition of the UI layers.
if ((currentLayerCount == 1) ||
((currentLayerCount - 1) == numLayersNotUpdating)) {
return true;
}
} else {
ctx->previousLayerCount = -1;
}
return false;
}
static bool canUseCopybit(const framebuffer_device_t* fbDev, const hwc_layer_list_t* list) {
if(!fbDev) {
LOGE("ERROR: %s : fb device is invalid",__func__);
return false;
}
if (!list)
return false;
int fb_w = fbDev->width;
int fb_h = fbDev->height;
/*
* Use copybit only when we need to blit
* max 2 full screen sized regions
*/
unsigned int renderArea = 0;
for(int i = 0; i < list->numHwLayers; i++ ) {
int w, h;
getLayerResolution(&list->hwLayers[i], w, h);
renderArea += w*h;
}
return (renderArea <= (2 * fb_w * fb_h));
}
static void handleHDMIStateChange(hwc_composer_device_t *dev, int externaltype) {
#if defined HDMI_DUAL_DISPLAY
hwc_context_t* ctx = (hwc_context_t*)(dev);
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
dev->common.module);
//Route the event to fbdev only if we are in default mirror mode
if(ExtDispOnly::isModeOn() == false) {
framebuffer_device_t *fbDev = hwcModule->fbDevice;
if (fbDev) {
fbDev->enableHDMIOutput(fbDev, externaltype);
}
// Yield - Allows the UI channel(with zorder 0) to be opened first
sched_yield();
if(ctx && ctx->mOverlayLibObject) {
overlay::Overlay *ovLibObject = ctx->mOverlayLibObject;
if (!externaltype) {
// Close the external overlay channels if HDMI is disconnected
ovLibObject->closeExternalChannel();
}
}
}
#endif
}
/*
* Save callback functions registered to HWC
*/
static void hwc_registerProcs(struct hwc_composer_device* dev, hwc_procs_t const* procs) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
LOGE("%s: Invalid context", __FUNCTION__);
return;
}
ctx->device.reserved_proc[0] = (void*)procs;
}
/*
* function to set the status of external display in hwc
* Just mark flags and do stuff after eglSwapBuffers
* externaltype - can be HDMI, WIFI or OFF
*/
static void hwc_enableHDMIOutput(hwc_composer_device_t *dev, int externaltype) {
#if defined HDMI_DUAL_DISPLAY
hwc_context_t* ctx = (hwc_context_t*)(dev);
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
dev->common.module);
framebuffer_device_t *fbDev = hwcModule->fbDevice;
overlay::Overlay *ovLibObject = ctx->mOverlayLibObject;
if(externaltype && ctx->mHDMIEnabled &&
(externaltype != ctx->mHDMIEnabled)) {
// Close the current external display - as the SF will
// prioritize and send the correct external display HDMI/WFD
handleHDMIStateChange(dev, 0);
}
// Store the external display
ctx->mHDMIEnabled = (external_display_type)externaltype;
if(ctx->mHDMIEnabled) { //On connect, allow bypass to draw once to FB
ctx->pendingHDMI = true;
} else { //On disconnect, close immediately (there will be no bypass)
handleHDMIStateChange(dev, ctx->mHDMIEnabled);
}
#endif
}
static bool isValidDestination(const framebuffer_device_t* fbDev, const hwc_rect_t& rect)
{
if (!fbDev) {
LOGE("%s: fbDev is null", __FUNCTION__);
return false;
}
int dest_width = (rect.right - rect.left);
int dest_height = (rect.bottom - rect.top);
if (rect.left < 0 || rect.right < 0 || rect.top < 0 || rect.bottom < 0
|| dest_width <= 0 || dest_height <= 0) {
LOGE("%s: destination: left=%d right=%d top=%d bottom=%d width=%d"
"height=%d", __FUNCTION__, rect.left, rect.right, rect.top,
rect.bottom, dest_width, dest_height);
return false;
}
if ((rect.left+dest_width) > fbDev->width || (rect.top+dest_height) > fbDev->height) {
LOGE("%s: destination out of bound params", __FUNCTION__);
return false;
}
return true;
}
static int getYUVBufferCount (const hwc_layer_list_t* list) {
int yuvBufferCount = 0;
if (list) {
for (size_t i=0 ; i<list->numHwLayers; i++) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
if (hnd && (hnd->bufferType == BUFFER_TYPE_VIDEO) &&
!(list->hwLayers[i].flags & HWC_DO_NOT_USE_OVERLAY)) {
yuvBufferCount++;
}
}
}
return yuvBufferCount;
}
static int getS3DVideoFormat (const hwc_layer_list_t* list) {
int s3dFormat = 0;
if (list) {
for (size_t i=0; i<list->numHwLayers; i++) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
if (hnd && (hnd->bufferType == BUFFER_TYPE_VIDEO))
s3dFormat = FORMAT_3D_INPUT(hnd->format);
if (s3dFormat)
break;
}
}
return s3dFormat;
}
static int getS3DFormat (const hwc_layer_list_t* list) {
int s3dFormat = 0;
if (list) {
for (size_t i=0; i<list->numHwLayers; i++) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
if (hnd)
s3dFormat = FORMAT_3D_INPUT(hnd->format);
if (s3dFormat)
break;
}
}
return s3dFormat;
}
static bool isS3DCompositionRequired() {
#ifdef HDMI_AS_PRIMARY
return overlay::is3DTV();
#endif
return false;
}
static void markUILayerForS3DComposition (hwc_layer_t &layer, int s3dVideoFormat) {
#ifdef HDMI_AS_PRIMARY
layer.compositionType = HWC_FRAMEBUFFER;
switch(s3dVideoFormat) {
case HAL_3D_IN_SIDE_BY_SIDE_L_R:
case HAL_3D_IN_SIDE_BY_SIDE_R_L:
layer.hints |= HWC_HINT_DRAW_S3D_SIDE_BY_SIDE;
break;
case HAL_3D_IN_TOP_BOTTOM:
layer.hints |= HWC_HINT_DRAW_S3D_TOP_BOTTOM;
break;
default:
LOGE("%s: Unknown S3D input format 0x%x", __FUNCTION__, s3dVideoFormat);
break;
}
#endif
return;
}
static int getLayersNotUpdatingCount(const hwc_layer_list_t* list) {
int numLayersNotUpdating = 0;
if (list) {
for (size_t i=0 ; i<list->numHwLayers; i++) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
if (hnd && (hnd->bufferType != BUFFER_TYPE_VIDEO) &&
list->hwLayers[i].flags & HWC_LAYER_NOT_UPDATING)
numLayersNotUpdating++;
}
}
return numLayersNotUpdating;
}
static int hwc_prepare(hwc_composer_device_t *dev, hwc_layer_list_t* list) {
hwc_context_t* ctx = (hwc_context_t*)(dev);
ctx->currentOverlayHandle = NULL;
if(!ctx) {
LOGE("hwc_prepare invalid context");
return -1;
}
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
dev->common.module);
if (!hwcModule) {
LOGE("hwc_prepare invalid module");
#ifdef COMPOSITION_BYPASS
unlockPreviousBypassBuffers(ctx);
unsetBypassBufferLockState(ctx);
#endif
unlockPreviousOverlayBuffer(ctx);
ExtDispOnly::close();
return -1;
}
int yuvBufferCount = 0;
int layerType = 0;
bool isS3DCompositionNeeded = false;
int s3dVideoFormat = 0;
int numLayersNotUpdating = 0;
bool useCopybit = false;
bool isSkipLayerPresent = false;
bool skipComposition = false;
if (list) {
useCopybit = canUseCopybit(hwcModule->fbDevice, list);
ctx->yuvBufferCount = getYUVBufferCount(list);
yuvBufferCount = ctx->yuvBufferCount;
numLayersNotUpdating = getLayersNotUpdatingCount(list);
skipComposition = canSkipComposition(ctx, yuvBufferCount,
list->numHwLayers, numLayersNotUpdating);
if ((yuvBufferCount == 0) && (ctx->hwcOverlayStatus == HWC_OVERLAY_OPEN)) {
ctx->hwcOverlayStatus = HWC_OVERLAY_PREPARE_TO_CLOSE;
}
if (yuvBufferCount == 1) {
s3dVideoFormat = getS3DVideoFormat(list);
if (s3dVideoFormat)
isS3DCompositionNeeded = isS3DCompositionRequired();
} else if((s3dVideoFormat = getS3DFormat(list))){
if (s3dVideoFormat)
isS3DCompositionNeeded = isS3DCompositionRequired();
} else {
unlockPreviousOverlayBuffer(ctx);
}
for (size_t i=0 ; i<list->numHwLayers ; i++) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
// If there is a single Fullscreen layer, we can bypass it - TBD
// If there is only one video/camera buffer, we can bypass itn
if (isSkipLayer(&list->hwLayers[i])) {
isSkipLayerPresent = true;
skipComposition = false;
//Reset count, so that we end up composing once after animation
//is over, in case of overlay.
ctx->previousLayerCount = -1;
//If YUV layer is marked as SKIP, close pipes.
//If External is connected we still want to pump data to it,
//so keep the pipes open.
if(isYuvBuffer(hnd) && !isExternalConnected(ctx)) {
if (ctx->hwcOverlayStatus == HWC_OVERLAY_OPEN)
ctx->hwcOverlayStatus = HWC_OVERLAY_PREPARE_TO_CLOSE;
unlockPreviousOverlayBuffer(ctx);
}
// During the animaton UI layers are marked as SKIP
// need to still mark the layer for S3D composition
if (isS3DCompositionNeeded)
markUILayerForS3DComposition(list->hwLayers[i], s3dVideoFormat);
list->hwLayers[i].compositionType = HWC_FRAMEBUFFER;
list->hwLayers[i].hints &= ~HWC_HINT_CLEAR_FB;
markForGPUComp(ctx, list, i);
} else if (hnd && (hnd->bufferType == BUFFER_TYPE_VIDEO) && (yuvBufferCount == 1)) {
setVideoOverlayStatusInGralloc(ctx, true);
int flags = WAIT_FOR_VSYNC;
flags |= (hnd->flags &
private_handle_t::PRIV_FLAGS_SECURE_BUFFER)?
SECURE_OVERLAY_SESSION : 0;
flags |= (1 == list->numHwLayers) ? DISABLE_FRAMEBUFFER_FETCH : 0;
if (!isValidDestination(hwcModule->fbDevice, list->hwLayers[i].displayFrame)) {
list->hwLayers[i].compositionType = HWC_FRAMEBUFFER;
list->hwLayers[i].hints &= ~HWC_HINT_CLEAR_FB;
//Even though there are no skip layers, animation is still
//ON and in its final stages.
//Reset count, so that we end up composing once after animation
//is done, if overlay is used.
ctx->previousLayerCount = -1;
skipComposition = false;
if (ctx->hwcOverlayStatus == HWC_OVERLAY_OPEN)
ctx->hwcOverlayStatus = HWC_OVERLAY_PREPARE_TO_CLOSE;
unlockPreviousOverlayBuffer(ctx);
#ifdef USE_OVERLAY
} else if(prepareOverlay(ctx, &(list->hwLayers[i]), flags) == 0) {
list->hwLayers[i].compositionType = HWC_USE_OVERLAY;
list->hwLayers[i].hints |= HWC_HINT_CLEAR_FB;
// We've opened the channel. Set the state to open.
ctx->hwcOverlayStatus = HWC_OVERLAY_OPEN;
#endif
} else if (hwcModule->compositionType & (COMPOSITION_TYPE_C2D|
COMPOSITION_TYPE_MDP)) {
//Fail safe path: If drawing with overlay fails,
//Use C2D if available.
list->hwLayers[i].compositionType = HWC_USE_COPYBIT;
} else {
//If C2D is not enabled fall back to GPU.
list->hwLayers[i].compositionType = HWC_FRAMEBUFFER;
}
if (HWC_USE_OVERLAY != list->hwLayers[i].compositionType) {
unlockPreviousOverlayBuffer(ctx);
skipComposition = false;
}
} else if (getLayerS3DFormat(list->hwLayers[i])) {
setVideoOverlayStatusInGralloc(ctx, true);
int flags = WAIT_FOR_VSYNC;
flags |= (1 == list->numHwLayers) ? DISABLE_FRAMEBUFFER_FETCH : 0;
flags |= (hnd->flags &
private_handle_t::PRIV_FLAGS_SECURE_BUFFER)?
SECURE_OVERLAY_SESSION : 0;
#ifdef USE_OVERLAY
if(prepareOverlay(ctx, &(list->hwLayers[i]), flags) == 0) {
list->hwLayers[i].compositionType = HWC_USE_OVERLAY;
list->hwLayers[i].hints |= HWC_HINT_CLEAR_FB;
// We've opened the channel. Set the state to open.
ctx->hwcOverlayStatus = HWC_OVERLAY_OPEN;
}
#endif
} else if (isS3DCompositionNeeded) {
markUILayerForS3DComposition(list->hwLayers[i], s3dVideoFormat);
} else if (list->hwLayers[i].flags & HWC_USE_ORIGINAL_RESOLUTION) {
list->hwLayers[i].compositionType = HWC_USE_OVERLAY;
list->hwLayers[i].hints |= HWC_HINT_CLEAR_FB;
layerType |= HWC_ORIG_RESOLUTION;
} else if (hnd && hnd->flags & private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY) {
//handle later after other layers are handled
} else if (hnd && (hwcModule->compositionType &
(COMPOSITION_TYPE_C2D|COMPOSITION_TYPE_MDP))) {
list->hwLayers[i].compositionType = HWC_USE_COPYBIT;
} else if ((hwcModule->compositionType == COMPOSITION_TYPE_DYN)
&& useCopybit) {
list->hwLayers[i].compositionType = HWC_USE_COPYBIT;
}
else {
list->hwLayers[i].compositionType = HWC_FRAMEBUFFER;
}
}
//Update the stats and pipe config for external-only layers
ExtDispOnly::update(ctx, list);
if (skipComposition) {
list->flags |= HWC_SKIP_COMPOSITION;
} else {
list->flags &= ~HWC_SKIP_COMPOSITION;
}
#ifdef COMPOSITION_BYPASS
bool isBypassUsed = true;
bool isDoable = isBypassDoable(dev, yuvBufferCount, list);
//Check if bypass is feasible
if(isDoable && !isSkipLayerPresent) {
if(setupBypass(ctx, list)) {
setBypassLayerFlags(ctx, list);
ctx->bypassState = BYPASS_ON;
} else {
LOGE_IF(BYPASS_DEBUG,"%s: Bypass setup Failed",__FUNCTION__);
isBypassUsed = false;
}
} else {
LOGE_IF( BYPASS_DEBUG,"%s: Bypass not possible[%d,%d]",__FUNCTION__,
isDoable, !isSkipLayerPresent );
isBypassUsed = false;
}
//Reset bypass states
if(!isBypassUsed) {
ctx->nPipesUsed = 0;
unsetBypassLayerFlags(list);
if(ctx->bypassState == BYPASS_ON) {
ctx->bypassState = BYPASS_OFF_PENDING;
}
}
#endif
} else {
#ifdef COMPOSITION_BYPASS
unlockPreviousBypassBuffers(ctx);
unsetBypassBufferLockState(ctx);
#endif
unlockPreviousOverlayBuffer(ctx);
}
return 0;
}
// ---------------------------------------------------------------------------
struct range {
int current;
int end;
};
struct region_iterator : public copybit_region_t {
region_iterator(hwc_region_t region) {
mRegion = region;
r.end = region.numRects;
r.current = 0;
this->next = iterate;
}
private:
static int iterate(copybit_region_t const * self, copybit_rect_t* rect) {
if (!self || !rect) {
LOGE("iterate invalid parameters");
return 0;
}
region_iterator const* me = static_cast<region_iterator const*>(self);
if (me->r.current != me->r.end) {
rect->l = me->mRegion.rects[me->r.current].left;
rect->t = me->mRegion.rects[me->r.current].top;
rect->r = me->mRegion.rects[me->r.current].right;
rect->b = me->mRegion.rects[me->r.current].bottom;
me->r.current++;
return 1;
}
return 0;
}
hwc_region_t mRegion;
mutable range r;
};
static int drawLayerUsingCopybit(hwc_composer_device_t *dev, hwc_layer_t *layer, EGLDisplay dpy,
EGLSurface surface)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
LOGE("%s: null context ", __FUNCTION__);
return -1;
}
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(dev->common.module);
if(!hwcModule) {
LOGE("%s: null module ", __FUNCTION__);
return -1;
}
private_handle_t *hnd = (private_handle_t *)layer->handle;
if(!hnd) {
LOGE("%s: invalid handle", __FUNCTION__);
return -1;
}
// Lock this buffer for read.
genlock_lock_type lockType = GENLOCK_READ_LOCK;
int err = genlock_lock_buffer(hnd, lockType, GENLOCK_MAX_TIMEOUT);
if (GENLOCK_FAILURE == err) {
LOGE("%s: genlock_lock_buffer(READ) failed", __FUNCTION__);
return -1;
}
//render buffer
android_native_buffer_t *renderBuffer = (android_native_buffer_t *)eglGetRenderBufferANDROID(dpy, surface);
if (!renderBuffer) {
LOGE("%s: eglGetRenderBufferANDROID returned NULL buffer", __FUNCTION__);
genlock_unlock_buffer(hnd);
return -1;
}
private_handle_t *fbHandle = (private_handle_t *)renderBuffer->handle;
if(!fbHandle) {
LOGE("%s: Framebuffer handle is NULL", __FUNCTION__);
genlock_unlock_buffer(hnd);
return -1;
}
int alignment = 32;
if( HAL_PIXEL_FORMAT_RGB_565 == fbHandle->format )
alignment = 16;
// Set the copybit source:
copybit_image_t src;
src.w = ALIGN(hnd->width, alignment);
src.h = hnd->height;
src.format = hnd->format;
src.base = (void *)hnd->base;
src.handle = (native_handle_t *)layer->handle;
src.horiz_padding = src.w - hnd->width;
// Initialize vertical padding to zero for now,
// this needs to change to accomodate vertical stride
// if needed in the future
src.vert_padding = 0;
// Remove the srcBufferTransform if any
layer->transform = (layer->transform & FINAL_TRANSFORM_MASK);
// Copybit source rect
hwc_rect_t sourceCrop = layer->sourceCrop;
copybit_rect_t srcRect = {sourceCrop.left, sourceCrop.top,
sourceCrop.right,
sourceCrop.bottom};
// Copybit destination rect
hwc_rect_t displayFrame = layer->displayFrame;
copybit_rect_t dstRect = {displayFrame.left, displayFrame.top,
displayFrame.right,
displayFrame.bottom};
// Copybit dst
copybit_image_t dst;
dst.w = ALIGN(fbHandle->width,alignment);
dst.h = fbHandle->height;
dst.format = fbHandle->format;
dst.base = (void *)fbHandle->base;
dst.handle = (native_handle_t *)renderBuffer->handle;
copybit_device_t *copybit = hwcModule->copybitEngine;
int32_t screen_w = displayFrame.right - displayFrame.left;
int32_t screen_h = displayFrame.bottom - displayFrame.top;
int32_t src_crop_width = sourceCrop.right - sourceCrop.left;
int32_t src_crop_height = sourceCrop.bottom -sourceCrop.top;
float copybitsMaxScale = (float)copybit->get(copybit,COPYBIT_MAGNIFICATION_LIMIT);
float copybitsMinScale = (float)copybit->get(copybit,COPYBIT_MINIFICATION_LIMIT);
if((layer->transform == HWC_TRANSFORM_ROT_90) ||
(layer->transform == HWC_TRANSFORM_ROT_270)) {
//swap screen width and height
int tmp = screen_w;
screen_w = screen_h;
screen_h = tmp;
}
private_handle_t *tmpHnd = NULL;
if(screen_w <=0 || screen_h<=0 ||src_crop_width<=0 || src_crop_height<=0 ) {
LOGE("%s: wrong params for display screen_w=%d src_crop_width=%d screen_w=%d \
src_crop_width=%d", __FUNCTION__, screen_w,
src_crop_width,screen_w,src_crop_width);
genlock_unlock_buffer(hnd);
return -1;
}
float dsdx = (float)screen_w/src_crop_width;
float dtdy = (float)screen_h/src_crop_height;
float scaleLimitMax = copybitsMaxScale * copybitsMaxScale;
float scaleLimitMin = copybitsMinScale * copybitsMinScale;
if(dsdx > scaleLimitMax || dtdy > scaleLimitMax || dsdx < 1/scaleLimitMin || dtdy < 1/scaleLimitMin) {
LOGE("%s: greater than max supported size dsdx=%f dtdy=%f scaleLimitMax=%f scaleLimitMin=%f", __FUNCTION__,dsdx,dtdy,scaleLimitMax,1/scaleLimitMin);
genlock_unlock_buffer(hnd);
return -1;
}
if(dsdx > copybitsMaxScale || dtdy > copybitsMaxScale || dsdx < 1/copybitsMinScale || dtdy < 1/copybitsMinScale){
// The requested scale is out of the range the hardware
// can support.
LOGD("%s:%d::Need to scale twice dsdx=%f, dtdy=%f,copybitsMaxScale=%f,copybitsMinScale=%f,screen_w=%d,screen_h=%d \
src_crop_width=%d src_crop_height=%d",__FUNCTION__,__LINE__,
dsdx,dtdy,copybitsMaxScale,1/copybitsMinScale,screen_w,screen_h,src_crop_width,src_crop_height);
//Driver makes width and height as even
//that may cause wrong calculation of the ratio
//in display and crop.Hence we make
//crop width and height as even.
src_crop_width = (src_crop_width/2)*2;
src_crop_height = (src_crop_height/2)*2;
int tmp_w = src_crop_width;
int tmp_h = src_crop_height;
if (dsdx > copybitsMaxScale || dtdy > copybitsMaxScale ){
tmp_w = src_crop_width*copybitsMaxScale;
tmp_h = src_crop_height*copybitsMaxScale;
}else if (dsdx < 1/copybitsMinScale ||dtdy < 1/copybitsMinScale ){
tmp_w = src_crop_width/copybitsMinScale;
tmp_h = src_crop_height/copybitsMinScale;
tmp_w = (tmp_w/2)*2;
tmp_h = (tmp_h/2)*2;
}
LOGD("%s:%d::tmp_w = %d,tmp_h = %d",__FUNCTION__,__LINE__,tmp_w,tmp_h);
int usage = GRALLOC_USAGE_PRIVATE_ADSP_HEAP |
GRALLOC_USAGE_PRIVATE_MM_HEAP;
if (0 == alloc_buffer(&tmpHnd, tmp_w, tmp_h, fbHandle->format, usage)){
copybit_image_t tmp_dst;
copybit_rect_t tmp_rect;
tmp_dst.w = tmp_w;
tmp_dst.h = tmp_h;
tmp_dst.format = tmpHnd->format;
tmp_dst.handle = tmpHnd;
tmp_dst.horiz_padding = src.horiz_padding;
tmp_dst.vert_padding = src.vert_padding;
tmp_rect.l = 0;
tmp_rect.t = 0;
tmp_rect.r = tmp_dst.w;
tmp_rect.b = tmp_dst.h;
//create one clip region
hwc_rect tmp_hwc_rect = {0,0,tmp_rect.r,tmp_rect.b};
hwc_region_t tmp_hwc_reg = {1,(hwc_rect_t const*)&tmp_hwc_rect};
region_iterator tmp_it(tmp_hwc_reg);
copybit->set_parameter(copybit,COPYBIT_TRANSFORM,0);
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA,
(layer->blending == HWC_BLENDING_NONE) ? -1 : layer->alpha);
err = copybit->stretch(copybit,&tmp_dst, &src, &tmp_rect, &srcRect, &tmp_it);
if(err < 0){
LOGE("%s:%d::tmp copybit stretch failed",__FUNCTION__,__LINE__);
if(tmpHnd)
free_buffer(tmpHnd);
genlock_unlock_buffer(hnd);
return err;
}
// copy new src and src rect crop
src = tmp_dst;
srcRect = tmp_rect;
}
}
// Copybit region
hwc_region_t region = layer->visibleRegionScreen;
region_iterator copybitRegion(region);
copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_WIDTH, renderBuffer->width);
copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_HEIGHT, renderBuffer->height);
copybit->set_parameter(copybit, COPYBIT_TRANSFORM, layer->transform);
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA,
(layer->blending == HWC_BLENDING_NONE) ? -1 : layer->alpha);
copybit->set_parameter(copybit, COPYBIT_PREMULTIPLIED_ALPHA,
(layer->blending == HWC_BLENDING_PREMULT)? COPYBIT_ENABLE : COPYBIT_DISABLE);
copybit->set_parameter(copybit, COPYBIT_DITHER,
(dst.format == HAL_PIXEL_FORMAT_RGB_565)? COPYBIT_ENABLE : COPYBIT_DISABLE);
err = copybit->stretch(copybit, &dst, &src, &dstRect, &srcRect, &copybitRegion);
if(tmpHnd)
free_buffer(tmpHnd);
if(err < 0)
LOGE("%s: copybit stretch failed",__FUNCTION__);
// Unlock this buffer since copybit is done with it.
err = genlock_unlock_buffer(hnd);
if (GENLOCK_FAILURE == err) {
LOGE("%s: genlock_unlock_buffer failed", __FUNCTION__);
}
return err;
}
static int drawLayerUsingOverlay(hwc_context_t *ctx, hwc_layer_t *layer)
{
if (ctx && ctx->mOverlayLibObject) {
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(ctx->device.common.module);
if (!hwcModule) {
LOGE("drawLayerUsingLayer null module ");
return -1;
}
private_handle_t *hnd = (private_handle_t *)layer->handle;
overlay::Overlay *ovLibObject = ctx->mOverlayLibObject;
int ret = 0;
// Lock this buffer for read.
if (GENLOCK_NO_ERROR != genlock_lock_buffer(hnd, GENLOCK_READ_LOCK,
GENLOCK_MAX_TIMEOUT)) {
LOGE("%s: genlock_lock_buffer(READ) failed", __FUNCTION__);
return -1;
}
ret = ovLibObject->queueBuffer(hnd);
if (!ret) {
LOGE("drawLayerUsingOverlay queueBuffer failed");
// Unlock the buffer handle
genlock_unlock_buffer(hnd);
} else {
// Store the current buffer handle as the one that is to be unlocked after
// the next overlay play call.
hnd->flags |= private_handle_t::PRIV_FLAGS_HWC_LOCK;
ctx->currentOverlayHandle = hnd;
}
return ret;
}
return -1;
}
#ifdef COMPOSITION_BYPASS
static int drawLayerUsingBypass(hwc_context_t *ctx, hwc_layer_t *layer, int layer_index) {
int index = getLayerbypassIndex(layer);
if(index < 0) {
LOGE("%s: Invalid bypass index (%d)", __FUNCTION__, index);
return -1;
}
if (ctx && ctx->mOvUI[index]) {
overlay::OverlayUI *ovUI = ctx->mOvUI[index];
int ret = 0;
private_handle_t *hnd = (private_handle_t *)layer->handle;
if(!hnd) {
LOGE("%s handle null", __FUNCTION__);
return -1;
}
ctx->bypassBufferLockState[index] = BYPASS_BUFFER_UNLOCKED;
if (ctx->swapInterval > 0) {
if (GENLOCK_FAILURE == genlock_lock_buffer(hnd, GENLOCK_READ_LOCK,
GENLOCK_MAX_TIMEOUT)) {
LOGE("%s: genlock_lock_buffer(READ) failed", __FUNCTION__);
return -1;
}
ctx->bypassBufferLockState[index] = BYPASS_BUFFER_LOCKED;
}
LOGE_IF(BYPASS_DEBUG,"%s: Bypassing layer: %p using pipe: %d",__FUNCTION__, layer, index );
ret = ovUI->queueBuffer(hnd);
if (ret) {
// Unlock the locked buffer
if (ctx->swapInterval > 0) {
if (GENLOCK_FAILURE == genlock_unlock_buffer(hnd)) {
LOGE("%s: genlock_unlock_buffer failed", __FUNCTION__);
}
}
ctx->bypassBufferLockState[index] = BYPASS_BUFFER_UNLOCKED;
return -1;
}
}
return 0;
}
#endif
static int hwc_set(hwc_composer_device_t *dev,
hwc_display_t dpy,
hwc_surface_t sur,
hwc_layer_list_t* list)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
LOGE("hwc_set invalid context");
ExtDispOnly::close();
return -1;
}
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
dev->common.module);
if (!hwcModule) {
LOGE("hwc_set invalid module");
#ifdef COMPOSITION_BYPASS
unlockPreviousBypassBuffers(ctx);
unsetBypassBufferLockState(ctx);
#endif
ExtDispOnly::close();
unlockPreviousOverlayBuffer(ctx);
return -1;
}
int ret = 0;
if (list) {
bool bDumpLayers = needToDumpLayers(); // Check need for debugging dumps
for (size_t i=0; i<list->numHwLayers; i++) {
if (bDumpLayers)
dumpLayer(hwcModule->compositionType, list->flags, i, list->hwLayers);
if (list->hwLayers[i].flags & HWC_SKIP_LAYER) {
continue;
#ifdef COMPOSITION_BYPASS
} else if (list->hwLayers[i].flags & HWC_COMP_BYPASS) {
ctx->idleTimer.reset();
drawLayerUsingBypass(ctx, &(list->hwLayers[i]), i);
#endif
} else if (list->hwLayers[i].compositionType == HWC_USE_OVERLAY) {
drawLayerUsingOverlay(ctx, &(list->hwLayers[i]));
} else if (list->flags & HWC_SKIP_COMPOSITION) {
continue;
} else if (list->hwLayers[i].compositionType == HWC_USE_COPYBIT) {
drawLayerUsingCopybit(dev, &(list->hwLayers[i]), (EGLDisplay)dpy, (EGLSurface)sur);
}
}
} else {
//Device in suspended state. Close all the MDP pipes
#ifdef COMPOSITION_BYPASS
ctx->nPipesUsed = 0;
#endif
ctx->hwcOverlayStatus = HWC_OVERLAY_PREPARE_TO_CLOSE;
unlockPreviousOverlayBuffer(ctx);
}
bool canSkipComposition = list && list->flags & HWC_SKIP_COMPOSITION;
#ifdef COMPOSITION_BYPASS
unlockPreviousBypassBuffers(ctx);
storeLockedBypassHandle(list, ctx);
// We have stored the handles, unset the current lock states in the context.
unsetBypassBufferLockState(ctx);
closeExtraPipes(ctx);
#if BYPASS_DEBUG
if(canSkipComposition)
LOGE("%s: skipping eglSwapBuffer call", __FUNCTION__);
#endif
#endif
// Do not call eglSwapBuffers if we the skip composition flag is set on the list.
if (dpy && sur && !canSkipComposition) {
EGLBoolean sucess = eglSwapBuffers((EGLDisplay)dpy, (EGLSurface)sur);
if (!sucess) {
ret = HWC_EGL_ERROR;
}
} else {
CALC_FPS();
}
// Unlock the previously locked buffer, since the overlay has completed reading the buffer
unlockPreviousOverlayBuffer(ctx);
#if defined HDMI_DUAL_DISPLAY
if(ctx->pendingHDMI) {
handleHDMIStateChange(dev, ctx->mHDMIEnabled);
ctx->pendingHDMI = false;
hwc_procs* proc = (hwc_procs*)ctx->device.reserved_proc[0];
if(!proc) {
LOGE("%s: HWC proc not registered", __FUNCTION__);
} else {
/* Trigger SF to redraw the current frame
* Used when the video is paused and external
* display is connected
*/
proc->invalidate(proc);
}
}
#endif
hwc_closeOverlayChannels(ctx);
return ret;
}
static int hwc_device_close(struct hw_device_t *dev)
{
if(!dev) {
LOGE("hwc_device_close null device pointer");
return -1;
}
struct hwc_context_t* ctx = (struct hwc_context_t*)dev;
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>(
ctx->device.common.module);
// Close the overlay and copybit modules
if(hwcModule->copybitEngine) {
copybit_close(hwcModule->copybitEngine);
hwcModule->copybitEngine = NULL;
}
if(hwcModule->fbDevice) {
framebuffer_close(hwcModule->fbDevice);
hwcModule->fbDevice = NULL;
}
unlockPreviousOverlayBuffer(ctx);
if (ctx) {
delete ctx->mOverlayLibObject;
ctx->mOverlayLibObject = NULL;
#ifdef COMPOSITION_BYPASS
for(int i = 0; i < MAX_BYPASS_LAYERS; i++) {
delete ctx->mOvUI[i];
}
unlockPreviousBypassBuffers(ctx);
unsetBypassBufferLockState(ctx);
#endif
ExtDispOnly::close();
ExtDispOnly::destroy();
free(ctx);
}
return 0;
}
/*****************************************************************************/
static int hwc_module_initialize(struct private_hwc_module_t* hwcModule)
{
// Open the overlay and copybit modules
hw_module_t const *module;
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
copybit_open(module, &(hwcModule->copybitEngine));
}
if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
framebuffer_open(module, &(hwcModule->fbDevice));
}
// get the current composition type
char property[PROPERTY_VALUE_MAX];
if (property_get("debug.sf.hw", property, NULL) > 0) {
if(atoi(property) == 0) {
//debug.sf.hw = 0
hwcModule->compositionType = COMPOSITION_TYPE_CPU;
} else { //debug.sf.hw = 1
// Get the composition type
property_get("debug.composition.type", property, NULL);
if (property == NULL) {
hwcModule->compositionType = COMPOSITION_TYPE_GPU;
} else if ((strncmp(property, "mdp", 3)) == 0) {
hwcModule->compositionType = COMPOSITION_TYPE_MDP;
} else if ((strncmp(property, "c2d", 3)) == 0) {
hwcModule->compositionType = COMPOSITION_TYPE_C2D;
} else if ((strncmp(property, "dyn", 3)) == 0) {
hwcModule->compositionType = COMPOSITION_TYPE_DYN;
} else {
hwcModule->compositionType = COMPOSITION_TYPE_GPU;
}
if(!hwcModule->copybitEngine)
hwcModule->compositionType = COMPOSITION_TYPE_GPU;
}
} else { //debug.sf.hw is not set. Use cpu composition
hwcModule->compositionType = COMPOSITION_TYPE_CPU;
}
//Check if composition bypass is enabled
if(property_get("ro.sf.compbypass.enable", property, NULL) > 0) {
if(atoi(property) == 1) {
hwcModule->isBypassEnabled = true;
}
}
CALC_INIT();
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)) {
private_hwc_module_t* hwcModule = reinterpret_cast<private_hwc_module_t*>
(const_cast<hw_module_t*>(module));
hwc_module_initialize(hwcModule);
struct hwc_context_t *dev;
dev = (hwc_context_t*)malloc(sizeof(*dev));
/* initialize our state here */
memset(dev, 0, sizeof(*dev));
#ifdef USE_OVERLAY
dev->mOverlayLibObject = new overlay::Overlay();
if(overlay::initOverlay() == -1)
LOGE("overlay::initOverlay() ERROR!!");
#else
dev->mOverlayLibObject = NULL;
#endif
#ifdef COMPOSITION_BYPASS
for(int i = 0; i < MAX_BYPASS_LAYERS; i++) {
dev->mOvUI[i] = new overlay::OverlayUI();
dev->previousBypassHandle[i] = NULL;
}
unsetBypassBufferLockState(dev);
dev->bypassState = BYPASS_OFF;
char property[PROPERTY_VALUE_MAX];
unsigned long idle_timeout = DEFAULT_IDLE_TIME;
if (property_get("debug.bypass.idletime", property, NULL) > 0) {
if(atoi(property) != 0)
idle_timeout = atoi(property);
}
dev->idleTimer.create(timeout_handler, dev);
dev->idleTimer.setFreq(idle_timeout);
dev->idleTimeOut = false;
#endif
ExtDispOnly::init();
#if defined HDMI_DUAL_DISPLAY
dev->mHDMIEnabled = EXT_TYPE_NONE;
dev->pendingHDMI = false;
#endif
dev->previousOverlayHandle = NULL;
dev->currentOverlayHandle = NULL;
dev->hwcOverlayStatus = HWC_OVERLAY_CLOSED;
dev->previousLayerCount = -1;
char value[PROPERTY_VALUE_MAX];
if (property_get("debug.egl.swapinterval", value, "1") > 0) {
dev->swapInterval = atoi(value);
}
/* initialize the procs */
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = 0;
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.registerProcs = hwc_registerProcs;
dev->device.enableHDMIOutput = hwc_enableHDMIOutput;
*device = &dev->device.common;
status = 0;
}
return status;
}
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