android/android_hardware_qcom_display
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android_hardware_qcom_display/libhwcomposer/hwc_copybit.cpp
Sravan Kumar D.V.N 857f8a5f0b display : Avoid calling eglGetRenderBufferANDROID for each layer 
Currently eglGetRenderBufferANDROID is being called for each layer
which is not needed. This change calls this API once in set call,
and passes the 'render buffer' to drawLayerUsingCopybit.

Change-Id: I310163db02df13e8c03b51d73f291588fbf08160
2012-08-21 16:11:44 -05:00

528 lines
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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2012, Code Aurora Forum. 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 <genlock.h>
#include "hwc_copybit.h"
#include "hwc_copybit.h"
#include "comptype.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;
};
// Initialize CopyBit Class Static Mmembers.
functype_eglGetRenderBufferANDROID CopyBit::LINK_eglGetRenderBufferANDROID
= NULL;
functype_eglGetCurrentSurface CopyBit::LINK_eglGetCurrentSurface = NULL;
int CopyBit::sYuvCount = 0;
int CopyBit::sYuvLayerIndex = -1;
bool CopyBit::sIsModeOn = false;
bool CopyBit::sIsLayerSkip = false;
void* CopyBit::egl_lib = NULL;
void CopyBit::openEglLibAndGethandle()
{
egl_lib = ::dlopen("libEGL_adreno200.so", RTLD_GLOBAL | RTLD_LAZY);
if (!egl_lib) {
return;
}
updateEglHandles(egl_lib);
}
void CopyBit::closeEglLib()
{
if(egl_lib)
::dlclose(egl_lib);
egl_lib = NULL;
updateEglHandles(NULL);
}
void CopyBit::updateEglHandles(void* egl_lib)
{
if(egl_lib != NULL) {
*(void **)&CopyBit::LINK_eglGetRenderBufferANDROID =
::dlsym(egl_lib, "eglGetRenderBufferANDROID");
*(void **)&CopyBit::LINK_eglGetCurrentSurface =
::dlsym(egl_lib, "eglGetCurrentSurface");
}else {
LINK_eglGetCurrentSurface = NULL;
LINK_eglGetCurrentSurface = NULL;
}
}
bool CopyBit::canUseCopybitForYUV(hwc_context_t *ctx) {
// return true for non-overlay targets
if(ctx->mMDP.hasOverlay) {
return false;
}
return true;
}
bool CopyBit::canUseCopybitForRGB(hwc_context_t *ctx, hwc_layer_list_t *list) {
int compositionType =
qdutils::QCCompositionType::getInstance().getCompositionType();
if ((compositionType & qdutils::COMPOSITION_TYPE_C2D) ||
(compositionType & qdutils::COMPOSITION_TYPE_DYN)) {
if (sYuvCount) {
//Overlay up & running. Dont use COPYBIT for RGB layers.
// TODO need to implement blending with C2D
return false;
}
}
if (compositionType & qdutils::COMPOSITION_TYPE_DYN) {
// DYN Composition:
// use copybit, if (TotalRGBRenderArea < 2 * FB Area)
// this is done based on perf inputs in ICS
// TODO: Above condition needs to be re-evaluated in JB
framebuffer_device_t *fbDev = ctx->mFbDev;
if (!fbDev) {
ALOGE("%s:Invalid FB device", __FUNCTION__);
return false;
}
unsigned int fbArea = (fbDev->width * fbDev->height);
unsigned int renderArea = getRGBRenderingArea(list);
ALOGD_IF (DEBUG_COPYBIT, "%s:renderArea %u, fbArea %u",
__FUNCTION__, renderArea, fbArea);
if (renderArea < (2 * 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_layer_list_t *list) {
//Calculates total rendering area for RGB layers
unsigned int renderArea = 0;
unsigned int w=0, h=0;
for (unsigned int i=0; i<list->numHwLayers; 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 CopyBit::prepare(hwc_context_t *ctx, hwc_layer_list_t *list) {
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;
}
bool useCopybitForYUV = canUseCopybitForYUV(ctx);
bool useCopybitForRGB = canUseCopybitForRGB(ctx, list);
if(!(validateParams(ctx, list))) {
ALOGE("%s:Invalid Params", __FUNCTION__);
return false;
}
for (int i=list->numHwLayers-1; i >= 0 ; i--) {
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
if (isSkipLayer(&list->hwLayers[i])) {
return true;
} else if (hnd->bufferType == BUFFER_TYPE_VIDEO) {
//YUV layer, check, if copybit can be used
if (useCopybitForYUV) {
list->hwLayers[i].compositionType = HWC_USE_COPYBIT;
}
} else if (hnd->bufferType == BUFFER_TYPE_UI) {
//RGB layer, check, if copybit can be used
if (useCopybitForRGB) {
list->hwLayers[i].compositionType = HWC_USE_COPYBIT;
}
}
}
return true;
}
bool CopyBit::draw(hwc_context_t *ctx, hwc_layer_list_t *list, EGLDisplay dpy,
EGLSurface sur){
// draw layers marked for COPYBIT
int retVal = true;
EGLSurface eglSurface = LINK_eglGetCurrentSurface(EGL_DRAW);
android_native_buffer_t *renderBuffer =
(android_native_buffer_t *)LINK_eglGetRenderBufferANDROID(dpy, eglSurface);
for (size_t i=0; i<list->numHwLayers; i++) {
if (list->hwLayers[i].compositionType == HWC_USE_COPYBIT) {
retVal = drawLayerUsingCopybit(ctx, &(list->hwLayers[i]),
(EGLDisplay)dpy,
(EGLSurface)sur,
renderBuffer);
if(retVal<0) {
ALOGE("%s : drawLayerUsingCopybit failed", __FUNCTION__);
}
}
}
return true;
}
int CopyBit::drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_t *layer,
EGLDisplay dpy,
EGLSurface surface,
android_native_buffer_t *renderBuffer)
{
hwc_context_t* ctx = (hwc_context_t*)(dev);
if(!ctx) {
ALOGE("%s: null context ", __FUNCTION__);
return -1;
}
private_handle_t *hnd = (private_handle_t *)layer->handle;
if(!hnd) {
ALOGE("%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) {
ALOGE("%s: genlock_lock_buffer(READ) failed", __FUNCTION__);
return -1;
}
//render buffer
if (!renderBuffer) {
ALOGE("%s: eglGetRenderBuffer returned NULL buffer", __FUNCTION__);
genlock_unlock_buffer(hnd);
return -1;
}
private_handle_t *fbHandle = (private_handle_t *)renderBuffer->handle;
if(!fbHandle) {
ALOGE("%s: Framebuffer handle is NULL", __FUNCTION__);
genlock_unlock_buffer(hnd);
return -1;
}
// Set the copybit source:
copybit_image_t src;
src.w = hnd->width;
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,32);
dst.h = fbHandle->height;
dst.format = fbHandle->format;
dst.base = (void *)fbHandle->base;
dst.handle = (native_handle_t *)renderBuffer->handle;
copybit_device_t *copybit = ctx->mCopybitEngine->getEngine();
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);
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) {
ALOGE("%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.
ALOGE("%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;
}
ALOGE("%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);
//TODO: once, we are able to read layer alpha, update this
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
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);
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);
//TODO: once, we are able to read layer alpha, update this
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
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);
copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
COPYBIT_ENABLE);
err = copybit->stretch(copybit, &dst, &src, &dstRect, &srcRect,
&copybitRegion);
copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,
COPYBIT_DISABLE);
if(tmpHnd)
free_buffer(tmpHnd);
if(err < 0)
ALOGE("%s: copybit stretch failed",__FUNCTION__);
// Unlock this buffer since copybit is done with it.
err = genlock_unlock_buffer(hnd);
if (GENLOCK_FAILURE == err) {
ALOGE("%s: genlock_unlock_buffer failed", __FUNCTION__);
}
return err;
}
void CopyBit::getLayerResolution(const hwc_layer_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_layer_list_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;
}
framebuffer_device_t *fbDev = ctx->mFbDev;
if (!fbDev) {
ALOGE("%s:Invalid FB device", __FUNCTION__);
return false;
}
if (LINK_eglGetRenderBufferANDROID == NULL ||
LINK_eglGetCurrentSurface == NULL) {
ALOGE("%s:Not able to link to ADRENO", __FUNCTION__);
return false;
}
return true;
}
//CopybitEngine Class functions
CopybitEngine* CopybitEngine::sInstance = 0;
struct copybit_device_t* CopybitEngine::getEngine() {
return sEngine;
}
CopybitEngine* CopybitEngine::getInstance() {
if(sInstance == NULL)
sInstance = new CopybitEngine();
return sInstance;
}
CopybitEngine::CopybitEngine(){
hw_module_t const *module;
if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
copybit_open(module, &sEngine);
} else {
ALOGE("FATAL ERROR: copybit open failed.");
}
CopyBit::openEglLibAndGethandle();
}
CopybitEngine::~CopybitEngine()
{
CopyBit::closeEglLib();
if(sEngine)
{
copybit_close(sEngine);
sEngine = NULL;
}
}
}; //namespace qhwc
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