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android_vendor_qcom_opensou…/libhwcomposer/hwc_copybit.cpp
Sushil Chauhan 943797c361 hwc/copybit: Add Color layer support in MDP Copybit composition. 
1. Color layer has a destination rectangle, RGBA color and plane
   alpha. There is no gralloc buffer. Layer flag HWC_COLOR_FILL
   denotes color layer. MDP BLIT happens via MDP_SOLID_FILL mode.
2. There is no color member in HWC layer, so RGBA color value is
   passed via "tranform" member from framework to HAL.
3. Update HWC query to enable framework to query for Color layer
   support in HAL, at run-time.

Change-Id: I2c698007c1689779fe86d549093bb5285432dc5f
2013-11-13 10:13:19 -08:00

730 lines
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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012-2013, The Linux Foundation. All rights reserved.
*
* Not a Contribution, Apache license notifications and license are retained
* for attribution purposes only.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define DEBUG_COPYBIT 0
#include <copybit.h>
#include <utils/Timers.h>
#include <mdp_version.h>
#include "hwc_copybit.h"
#include "comptype.h"
#include "gr.h"
namespace qhwc {
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) {
ALOGE("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;
};
void CopyBit::reset() {
mIsModeOn = false;
mCopyBitDraw = false;
}
bool CopyBit::canUseCopybitForYUV(hwc_context_t *ctx) {
// return true for non-overlay targets
if(ctx->mMDP.hasOverlay && ctx->mMDP.version >= qdutils::MDP_V4_0) {
return false;
}
return true;
}
bool CopyBit::canUseCopybitForRGB(hwc_context_t *ctx,
hwc_display_contents_1_t *list,
int dpy) {
int compositionType = qdutils::QCCompositionType::
getInstance().getCompositionType();
if (compositionType & qdutils::COMPOSITION_TYPE_DYN) {
// DYN Composition:
// use copybit, if (TotalRGBRenderArea < threashold * FB Area)
// this is done based on perf inputs in ICS
// TODO: Above condition needs to be re-evaluated in JB
int fbWidth = ctx->dpyAttr[dpy].xres;
int fbHeight = ctx->dpyAttr[dpy].yres;
unsigned int fbArea = (fbWidth * fbHeight);
unsigned int renderArea = getRGBRenderingArea(list);
ALOGD_IF (DEBUG_COPYBIT, "%s:renderArea %u, fbArea %u",
__FUNCTION__, renderArea, fbArea);
if (renderArea < (mDynThreshold * fbArea)) {
return true;
}
} else if ((compositionType & qdutils::COMPOSITION_TYPE_MDP)) {
// MDP composition, use COPYBIT always
return true;
} else if ((compositionType & qdutils::COMPOSITION_TYPE_C2D)) {
// C2D composition, use COPYBIT
return true;
}
return false;
}
unsigned int CopyBit::getRGBRenderingArea
(const hwc_display_contents_1_t *list) {
//Calculates total rendering area for RGB layers
unsigned int renderArea = 0;
unsigned int w=0, h=0;
// Skipping last layer since FrameBuffer layer should not affect
// which composition to choose
for (unsigned int i=0; i<list->numHwLayers -1; i++) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
if (hnd) {
if (BUFFER_TYPE_UI == hnd->bufferType) {
getLayerResolution(&list->hwLayers[i], w, h);
renderArea += (w*h);
}
}
}
return renderArea;
}
bool checkNonWormholeRegion(private_handle_t* hnd, hwc_rect_t& rect)
{
unsigned int height = rect.bottom - rect.top;
unsigned int width = rect.right - rect.left;
copybit_image_t buf;
buf.w = ALIGN(hnd->width, 32);
buf.h = hnd->height;
if (buf.h != height || buf.w != width)
return false;
return true;
}
bool CopyBit::prepare(hwc_context_t *ctx, hwc_display_contents_1_t *list,
int dpy) {
if(mEngine == NULL) {
// No copybit device found - cannot use copybit
return false;
}
int compositionType = qdutils::QCCompositionType::
getInstance().getCompositionType();
if ((compositionType == qdutils::COMPOSITION_TYPE_GPU) ||
(compositionType == qdutils::COMPOSITION_TYPE_CPU)) {
//GPU/CPU composition, don't change layer composition type
return true;
}
if(!(validateParams(ctx, list))) {
ALOGE("%s:Invalid Params", __FUNCTION__);
return false;
}
if(ctx->listStats[dpy].skipCount) {
//GPU will be anyways used
return false;
}
if (ctx->listStats[dpy].numAppLayers > MAX_NUM_APP_LAYERS) {
// Reached max layers supported by HWC.
return false;
}
bool useCopybitForYUV = canUseCopybitForYUV(ctx);
bool useCopybitForRGB = canUseCopybitForRGB(ctx, list, dpy);
LayerProp *layerProp = ctx->layerProp[dpy];
size_t fbLayerIndex = ctx->listStats[dpy].fbLayerIndex;
hwc_layer_1_t *fbLayer = &list->hwLayers[fbLayerIndex];
private_handle_t *fbHnd = (private_handle_t *)fbLayer->handle;
// Following are MDP3 limitations for which we
// need to fallback to GPU composition:
// 1. Plane alpha is not supported by MDP3.
if (qdutils::MDPVersion::getInstance().getMDPVersion() < 400) {
for (int i = ctx->listStats[dpy].numAppLayers-1; i >= 0 ; i--) {
hwc_layer_1_t *layer = (hwc_layer_1_t *) &list->hwLayers[i];
if (layer->planeAlpha != 0xFF)
return true;
}
/*
* Fallback to GPU in MDP3 when NonWormholeRegion is not of frame buffer
* size as artifact is seen in WormholeRegion of previous frame.
*/
hwc_rect_t nonWormHoleRegion;
getNonWormholeRegion(list, nonWormHoleRegion);
if(!checkNonWormholeRegion(fbHnd, nonWormHoleRegion))
return true;
}
//Allocate render buffers if they're not allocated
if (useCopybitForYUV || useCopybitForRGB) {
int ret = allocRenderBuffers(fbHnd->width,
fbHnd->height,
fbHnd->format);
if (ret < 0) {
return false;
} else {
mCurRenderBufferIndex = (mCurRenderBufferIndex + 1) %
NUM_RENDER_BUFFERS;
}
}
// We cannot mix copybit layer with layers marked to be drawn on FB
if (!useCopybitForYUV && ctx->listStats[dpy].yuvCount)
return true;
mCopyBitDraw = false;
if (useCopybitForRGB &&
(useCopybitForYUV || !ctx->listStats[dpy].yuvCount)) {
mCopyBitDraw = true;
// numAppLayers-1, as we iterate till 0th layer index
// Mark all layers to be drawn by copybit
for (int i = ctx->listStats[dpy].numAppLayers-1; i >= 0 ; i--) {
layerProp[i].mFlags |= HWC_COPYBIT;
list->hwLayers[i].compositionType = HWC_OVERLAY;
}
}
return true;
}
int CopyBit::clear (private_handle_t* hnd, hwc_rect_t& rect)
{
int ret = 0;
copybit_rect_t clear_rect = {rect.left, rect.top,
rect.right,
rect.bottom};
copybit_image_t buf;
buf.w = ALIGN(getWidth(hnd),32);
buf.h = getHeight(hnd);
buf.format = hnd->format;
buf.base = (void *)hnd->base;
buf.handle = (native_handle_t *)hnd;
copybit_device_t *copybit = mEngine;
ret = copybit->clear(copybit, &buf, &clear_rect);
return ret;
}
bool CopyBit::draw(hwc_context_t *ctx, hwc_display_contents_1_t *list,
int dpy, int32_t *fd) {
// draw layers marked for COPYBIT
int retVal = true;
int copybitLayerCount = 0;
LayerProp *layerProp = ctx->layerProp[dpy];
if(mCopyBitDraw == false) // there is no layer marked for copybit
return false ;
//render buffer
private_handle_t *renderBuffer = getCurrentRenderBuffer();
if (!renderBuffer) {
ALOGE("%s: Render buffer layer handle is NULL", __FUNCTION__);
return false;
}
if (ctx->mMDP.version >= qdutils::MDP_V4_0) {
//Wait for the previous frame to complete before rendering onto it
if(mRelFd[0] >=0) {
sync_wait(mRelFd[0], 1000);
close(mRelFd[0]);
mRelFd[0] = -1;
}
//Clear the visible region on the render buffer
//XXX: Do this only when needed.
hwc_rect_t clearRegion;
getNonWormholeRegion(list, clearRegion);
clear(renderBuffer, clearRegion);
} else {
if(mRelFd[0] >=0) {
copybit_device_t *copybit = getCopyBitDevice();
copybit->set_sync(copybit, mRelFd[0]);
}
}
// numAppLayers-1, as we iterate from 0th layer index with HWC_COPYBIT flag
for (int i = 0; i <= (ctx->listStats[dpy].numAppLayers-1); i++) {
hwc_layer_1_t *layer = &list->hwLayers[i];
if(!(layerProp[i].mFlags & HWC_COPYBIT)) {
ALOGD_IF(DEBUG_COPYBIT, "%s: Not Marked for copybit", __FUNCTION__);
continue;
}
int ret = -1;
if (list->hwLayers[i].acquireFenceFd != -1
&& ctx->mMDP.version >= qdutils::MDP_V4_0) {
// Wait for acquire Fence on the App buffers.
ret = sync_wait(list->hwLayers[i].acquireFenceFd, 1000);
if(ret < 0) {
ALOGE("%s: sync_wait error!! error no = %d err str = %s",
__FUNCTION__, errno, strerror(errno));
}
close(list->hwLayers[i].acquireFenceFd);
list->hwLayers[i].acquireFenceFd = -1;
}
retVal = drawLayerUsingCopybit(ctx, &(list->hwLayers[i]),
renderBuffer, dpy, !i);
copybitLayerCount++;
if(retVal < 0) {
ALOGE("%s : drawLayerUsingCopybit failed", __FUNCTION__);
}
}
if (copybitLayerCount) {
copybit_device_t *copybit = getCopyBitDevice();
// Async mode
copybit->flush_get_fence(copybit, fd);
if(mRelFd[0] >=0 && ctx->mMDP.version == qdutils::MDP_V3_0_4) {
close(mRelFd[0]);
mRelFd[0] = -1;
}
}
return true;
}
int CopyBit::drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer,
private_handle_t *renderBuffer, int dpy, bool isFG)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
int err = 0, acquireFd;
if(!ctx) {
ALOGE("%s: null context ", __FUNCTION__);
return -1;
}
private_handle_t *hnd = (private_handle_t *)layer->handle;
if(!hnd) {
if (layer->flags & HWC_COLOR_FILL) { // Color layer
return fillColorUsingCopybit(layer, renderBuffer);
}
ALOGE("%s: invalid handle", __FUNCTION__);
return -1;
}
private_handle_t *fbHandle = (private_handle_t *)renderBuffer;
if(!fbHandle) {
ALOGE("%s: Framebuffer handle is NULL", __FUNCTION__);
return -1;
}
// Set the copybit source:
copybit_image_t src;
src.w = getWidth(hnd);
src.h = getHeight(hnd);
src.format = hnd->format;
// Handle R/B swap
if ((layer->flags & HWC_FORMAT_RB_SWAP)) {
if (src.format == HAL_PIXEL_FORMAT_RGBA_8888) {
src.format = HAL_PIXEL_FORMAT_BGRA_8888;
} else if (src.format == HAL_PIXEL_FORMAT_RGBX_8888) {
src.format = HAL_PIXEL_FORMAT_BGRX_8888;
}
}
src.base = (void *)hnd->base;
src.handle = (native_handle_t *)layer->handle;
src.horiz_padding = src.w - getWidth(hnd);
// Initialize vertical padding to zero for now,
// this needs to change to accomodate vertical stride
// if needed in the future
src.vert_padding = 0;
int layerTransform = layer->transform ;
// When flip and rotation(90) are present alter the flip,
// as GPU is doing the flip and rotation in opposite order
// to that of MDP3.0
// For 270 degrees, we get 90 + (H+V) which is same as doing
// flip first and then rotation (H+V) + 90
if (qdutils::MDPVersion::getInstance().getMDPVersion() < 400) {
if (((layer->transform& HAL_TRANSFORM_FLIP_H) ||
(layer->transform & HAL_TRANSFORM_FLIP_V)) &&
(layer->transform & HAL_TRANSFORM_ROT_90) &&
!(layer->transform == HAL_TRANSFORM_ROT_270)){
if(layer->transform & HAL_TRANSFORM_FLIP_H){
layerTransform ^= HAL_TRANSFORM_FLIP_H;
layerTransform |= HAL_TRANSFORM_FLIP_V;
}
if(layer->transform & HAL_TRANSFORM_FLIP_V){
layerTransform ^= HAL_TRANSFORM_FLIP_V;
layerTransform |= HAL_TRANSFORM_FLIP_H;
}
}
}
// Copybit source rect
hwc_rect_t sourceCrop = integerizeSourceCrop(layer->sourceCropf);
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,32);
dst.h = fbHandle->height;
dst.format = fbHandle->format;
dst.base = (void *)fbHandle->base;
dst.handle = (native_handle_t *)fbHandle;
copybit_device_t *copybit = mEngine;
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;
// Copybit dst
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 ) {
ALOGE("%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);
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) {
ALOGW("%s: greater than max supported size dsdx=%f dtdy=%f \
scaleLimitMax=%f scaleLimitMin=%f", __FUNCTION__,dsdx,dtdy,
scaleLimitMax,1/scaleLimitMin);
return -1;
}
acquireFd = layer->acquireFenceFd;
if(dsdx > copybitsMaxScale ||
dtdy > copybitsMaxScale ||
dsdx < 1/copybitsMinScale ||
dtdy < 1/copybitsMinScale){
// The requested scale is out of the range the hardware
// can support.
ALOGD("%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;
}
ALOGD("%s:%d::tmp_w = %d,tmp_h = %d",__FUNCTION__,__LINE__,tmp_w,tmp_h);
int usage = GRALLOC_USAGE_PRIVATE_IOMMU_HEAP;
int format = fbHandle->format;
// We do not want copybit to generate alpha values from nothing
if (format == HAL_PIXEL_FORMAT_RGBA_8888 &&
src.format != HAL_PIXEL_FORMAT_RGBA_8888) {
format = HAL_PIXEL_FORMAT_RGBX_8888;
}
if (0 == alloc_buffer(&tmpHnd, tmp_w, tmp_h, 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);
//TODO: once, we are able to read layer alpha, update this
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
copybit->set_sync(copybit, acquireFd);
err = copybit->stretch(copybit,&tmp_dst, &src, &tmp_rect,
&srcRect, &tmp_it);
if(err < 0){
ALOGE("%s:%d::tmp copybit stretch failed",__FUNCTION__,
__LINE__);
if(tmpHnd)
free_buffer(tmpHnd);
return err;
}
// use release fence as aquire fd for next stretch
if (ctx->mMDP.version < qdutils::MDP_V4_0) {
copybit->flush_get_fence(copybit, &acquireFd);
close(acquireFd);
acquireFd = -1;
}
// 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,
layerTransform);
//TODO: once, we are able to read layer alpha, update this
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
copybit->set_parameter(copybit, COPYBIT_BLEND_MODE,
layer->blending);
copybit->set_parameter(copybit, COPYBIT_DITHER,
(dst.format == HAL_PIXEL_FORMAT_RGB_565)?
COPYBIT_ENABLE : COPYBIT_DISABLE);
copybit->set_parameter(copybit, COPYBIT_FG_LAYER, isFG ?
COPYBIT_ENABLE : COPYBIT_DISABLE);
copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
COPYBIT_ENABLE);
copybit->set_sync(copybit, acquireFd);
err = copybit->stretch(copybit, &dst, &src, &dstRect, &srcRect,
&copybitRegion);
copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
COPYBIT_DISABLE);
if(tmpHnd) {
if (ctx->mMDP.version < qdutils::MDP_V4_0){
int ret = -1, releaseFd;
// we need to wait for the buffer before freeing
copybit->flush_get_fence(copybit, &releaseFd);
ret = sync_wait(releaseFd, 1000);
if(ret < 0) {
ALOGE("%s: sync_wait error!! error no = %d err str = %s",
__FUNCTION__, errno, strerror(errno));
}
close(releaseFd);
}
free_buffer(tmpHnd);
}
if(err < 0)
ALOGE("%s: copybit stretch failed",__FUNCTION__);
return err;
}
int CopyBit::fillColorUsingCopybit(hwc_layer_1_t *layer,
private_handle_t *renderBuffer)
{
if (!renderBuffer) {
ALOGE("%s: Render Buffer is NULL", __FUNCTION__);
return -1;
}
// Copybit dst
copybit_image_t dst;
dst.w = ALIGN(renderBuffer->width, 32);
dst.h = renderBuffer->height;
dst.format = renderBuffer->format;
dst.base = (void *)renderBuffer->base;
dst.handle = (native_handle_t *)renderBuffer;
// Copybit dst rect
hwc_rect_t displayFrame = layer->displayFrame;
copybit_rect_t dstRect = {displayFrame.left, displayFrame.top,
displayFrame.right, displayFrame.bottom};
uint32_t color = layer->transform;
copybit_device_t *copybit = mEngine;
copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_WIDTH,
renderBuffer->width);
copybit->set_parameter(copybit, COPYBIT_FRAMEBUFFER_HEIGHT,
renderBuffer->height);
copybit->set_parameter(copybit, COPYBIT_DITHER,
(dst.format == HAL_PIXEL_FORMAT_RGB_565) ?
COPYBIT_ENABLE : COPYBIT_DISABLE);
copybit->set_parameter(copybit, COPYBIT_BLEND_MODE, layer->blending);
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, layer->planeAlpha);
copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,COPYBIT_ENABLE);
int res = copybit->fill_color(copybit, &dst, &dstRect, color);
copybit->set_parameter(copybit,COPYBIT_BLIT_TO_FRAMEBUFFER,COPYBIT_DISABLE);
return res;
}
void CopyBit::getLayerResolution(const hwc_layer_1_t* layer,
unsigned int& width, unsigned int& height)
{
hwc_rect_t displayFrame = layer->displayFrame;
width = displayFrame.right - displayFrame.left;
height = displayFrame.bottom - displayFrame.top;
}
bool CopyBit::validateParams(hwc_context_t *ctx,
const hwc_display_contents_1_t *list) {
//Validate parameters
if (!ctx) {
ALOGE("%s:Invalid HWC context", __FUNCTION__);
return false;
} else if (!list) {
ALOGE("%s:Invalid HWC layer list", __FUNCTION__);
return false;
}
return true;
}
int CopyBit::allocRenderBuffers(int w, int h, int f)
{
int ret = 0;
for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
if (mRenderBuffer[i] == NULL) {
ret = alloc_buffer(&mRenderBuffer[i],
w, h, f,
GRALLOC_USAGE_PRIVATE_IOMMU_HEAP);
}
if(ret < 0) {
freeRenderBuffers();
break;
}
}
return ret;
}
void CopyBit::freeRenderBuffers()
{
for (int i = 0; i < NUM_RENDER_BUFFERS; i++) {
if(mRenderBuffer[i]) {
free_buffer(mRenderBuffer[i]);
mRenderBuffer[i] = NULL;
}
}
}
private_handle_t * CopyBit::getCurrentRenderBuffer() {
return mRenderBuffer[mCurRenderBufferIndex];
}
void CopyBit::setReleaseFd(int fd) {
if(mRelFd[0] >=0)
close(mRelFd[0]);
mRelFd[0] = mRelFd[1];
mRelFd[1] = dup(fd);
}
struct copybit_device_t* CopyBit::getCopyBitDevice() {
return mEngine;
}
CopyBit::CopyBit():mIsModeOn(false), mCopyBitDraw(false),
mCurRenderBufferIndex(0){
hw_module_t const *module;
for (int i = 0; i < NUM_RENDER_BUFFERS; i++)
mRenderBuffer[i] = NULL;
mRelFd[0] = -1;
mRelFd[1] = -1;
char value[PROPERTY_VALUE_MAX];
property_get("debug.hwc.dynThreshold", value, "2");
mDynThreshold = atof(value);
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
if(copybit_open(module, &mEngine) < 0) {
ALOGE("FATAL ERROR: copybit open failed.");
}
} else {
ALOGE("FATAL ERROR: copybit hw module not found");
}
}
CopyBit::~CopyBit()
{
freeRenderBuffers();
if(mRelFd[0] >=0)
close(mRelFd[0]);
if(mRelFd[1] >=0)
close(mRelFd[1]);
if(mEngine)
{
copybit_close(mEngine);
mEngine = NULL;
}
}
}; //namespace qhwc
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