LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

display: Add display metadata in buffer handle

Browse Source 
Allocate extra space for metadata in buffer handles
Provide api to map this space in client process and set the metadata

Change-Id: I8bca8448670d4aa88d439320faf402dae30458f8
This commit is contained in:
Ramkumar Radhakrishnan
2012-11-07 11:36:41 -08:00
committed by Gerrit - the friendly Code Review server
parent 28b1743a9d
commit 47573e20d5
8 changed files with 254 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
libgralloc/gpu.cpp
View File

@@ -27,6 +27,7 @@
#include "gpu.h"
#include "memalloc.h"
#include "alloc_controller.h"
#include <qdMetaData.h>
using namespace gralloc;
@@ -137,37 +138,52 @@ int gpu_context_t::gralloc_alloc_buffer(size_t size, int usage,
data.pHandle = (unsigned int) pHandle;
err = mAllocCtrl->allocate(data, usage);
if (usage & GRALLOC_USAGE_PRIVATE_UNSYNCHRONIZED) {
flags |= private_handle_t::PRIV_FLAGS_UNSYNCHRONIZED;
}
if (!err) {
/* allocate memory for enhancement data */
alloc_data eData;
eData.fd = -1;
eData.base = 0;
eData.offset = 0;
eData.size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
eData.pHandle = data.pHandle;
eData.align = getpagesize();
int eDataUsage = GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP;
int eDataErr = mAllocCtrl->allocate(eData, eDataUsage);
ALOGE_IF(eDataErr, "gralloc failed for eDataErr=%s",
strerror(-eDataErr));
if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY;
//The EXTERNAL_BLOCK flag is always an add-on
if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_BLOCK) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_BLOCK;
}if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_CC) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_CC;
if (usage & GRALLOC_USAGE_PRIVATE_UNSYNCHRONIZED) {
flags |= private_handle_t::PRIV_FLAGS_UNSYNCHRONIZED;
}
}
if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER ) {
flags |= private_handle_t::PRIV_FLAGS_VIDEO_ENCODER;
}
if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY;
//The EXTERNAL_BLOCK flag is always an add-on
if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_BLOCK) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_BLOCK;
}
if (usage & GRALLOC_USAGE_PRIVATE_EXTERNAL_CC) {
flags |= private_handle_t::PRIV_FLAGS_EXTERNAL_CC;
}
}
if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
flags |= private_handle_t::PRIV_FLAGS_CAMERA_WRITE;
}
if (usage & GRALLOC_USAGE_HW_VIDEO_ENCODER ) {
flags |= private_handle_t::PRIV_FLAGS_VIDEO_ENCODER;
}
if (usage & GRALLOC_USAGE_HW_CAMERA_READ) {
flags |= private_handle_t::PRIV_FLAGS_CAMERA_READ;
}
if (usage & GRALLOC_USAGE_HW_CAMERA_WRITE) {
flags |= private_handle_t::PRIV_FLAGS_CAMERA_WRITE;
}
if (usage & GRALLOC_USAGE_HW_CAMERA_READ) {
flags |= private_handle_t::PRIV_FLAGS_CAMERA_READ;
}
if (err == 0) {
flags |= data.allocType;
private_handle_t* hnd = new private_handle_t(data.fd, size, flags,
bufferType, format, width,
height);
int eBaseAddr = int(eData.base) + eData.offset;
private_handle_t *hnd = new private_handle_t(data.fd, size, flags,
bufferType, format, width, height, eData.fd, eData.offset,
eBaseAddr);
hnd->offset = data.offset;
hnd->base = int(data.base) + data.offset;
@@ -175,6 +191,7 @@ int gpu_context_t::gralloc_alloc_buffer(size_t size, int usage,
}
ALOGE_IF(err, "gralloc failed err=%s", strerror(-err));
return err;
}
@@ -261,6 +278,13 @@ int gpu_context_t::free_impl(private_handle_t const* hnd) {
hnd->offset, hnd->fd);
if(err)
return err;
// free the metadata space
unsigned long size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
err = memalloc->free_buffer((void*)hnd->base_metadata,
(size_t) size, hnd->offset_metadata,
hnd->fd_metadata);
if (err)
return err;
}
// Release the genlock