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-rw-r--r--libs/ui/GraphicBuffer.cpp85
1 files changed, 53 insertions, 32 deletions
diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index ee85c9bad9..c8805000a4 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -51,6 +51,7 @@ GraphicBuffer::GraphicBuffer()
height =
stride =
format =
+ usage_deprecated = 0;
usage = 0;
layerCount = 0;
handle = NULL;
@@ -59,14 +60,12 @@ GraphicBuffer::GraphicBuffer()
// deprecated
GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight,
PixelFormat inFormat, uint32_t inUsage, std::string requestorName)
- : GraphicBuffer(inWidth, inHeight, inFormat, 1, static_cast<uint64_t>(inUsage),
- requestorName)
+ : GraphicBuffer(inWidth, inHeight, inFormat, 1, static_cast<uint64_t>(inUsage), requestorName)
{
}
GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight,
- PixelFormat inFormat, uint32_t inLayerCount, uint64_t usage,
- std::string requestorName)
+ PixelFormat inFormat, uint32_t inLayerCount, uint64_t usage, std::string requestorName)
: GraphicBuffer()
{
mInitCheck = initWithSize(inWidth, inHeight, inFormat, inLayerCount,
@@ -139,7 +138,7 @@ status_t GraphicBuffer::reallocate(uint32_t inWidth, uint32_t inHeight,
static_cast<int>(inHeight) == height &&
inFormat == format &&
inLayerCount == layerCount &&
- static_cast<int>(inUsage) == usage)
+ inUsage == usage)
return NO_ERROR;
if (handle) {
@@ -147,8 +146,7 @@ status_t GraphicBuffer::reallocate(uint32_t inWidth, uint32_t inHeight,
allocator.free(handle);
handle = 0;
}
- return initWithSize(inWidth, inHeight, inFormat, inLayerCount,
- inUsage, "[Reallocation]");
+ return initWithSize(inWidth, inHeight, inFormat, inLayerCount, inUsage, "[Reallocation]");
}
bool GraphicBuffer::needsReallocation(uint32_t inWidth, uint32_t inHeight,
@@ -158,7 +156,7 @@ bool GraphicBuffer::needsReallocation(uint32_t inWidth, uint32_t inHeight,
if (static_cast<int>(inHeight) != height) return true;
if (inFormat != format) return true;
if (inLayerCount != layerCount) return true;
- if ((static_cast<uint32_t>(usage) & inUsage) != inUsage) return true;
+ if ((usage & inUsage) != inUsage) return true;
return false;
}
@@ -176,7 +174,8 @@ status_t GraphicBuffer::initWithSize(uint32_t inWidth, uint32_t inHeight,
height = static_cast<int>(inHeight);
format = inFormat;
layerCount = inLayerCount;
- usage = static_cast<int>(inUsage);
+ usage = inUsage;
+ usage_deprecated = int(usage);
stride = static_cast<int>(outStride);
}
return err;
@@ -191,7 +190,8 @@ status_t GraphicBuffer::initWithHandle(const native_handle_t* handle,
ANativeWindowBuffer::height = static_cast<int>(height);
ANativeWindowBuffer::stride = static_cast<int>(stride);
ANativeWindowBuffer::format = format;
- ANativeWindowBuffer::usage = static_cast<int>(usage);
+ ANativeWindowBuffer::usage = usage;
+ ANativeWindowBuffer::usage_deprecated = int(usage);
ANativeWindowBuffer::layerCount = layerCount;
@@ -312,8 +312,7 @@ status_t GraphicBuffer::lockAsyncYCbCr(uint32_t inUsage, const Rect& rect,
width, height);
return BAD_VALUE;
}
- status_t res = getBufferMapper().lockAsyncYCbCr(handle, inUsage, rect,
- ycbcr, fenceFd);
+ status_t res = getBufferMapper().lockAsyncYCbCr(handle, inUsage, rect, ycbcr, fenceFd);
return res;
}
@@ -324,7 +323,7 @@ status_t GraphicBuffer::unlockAsync(int *fenceFd)
}
size_t GraphicBuffer::getFlattenedSize() const {
- return static_cast<size_t>(12 + (handle ? handle->numInts : 0)) * sizeof(int);
+ return static_cast<size_t>(13 + (handle ? handle->numInts : 0)) * sizeof(int);
}
size_t GraphicBuffer::getFdCount() const {
@@ -339,25 +338,25 @@ status_t GraphicBuffer::flatten(void*& buffer, size_t& size, int*& fds, size_t&
if (count < fdCountNeeded) return NO_MEMORY;
int32_t* buf = static_cast<int32_t*>(buffer);
- buf[0] = 'GBFR';
+ buf[0] = 'GB01';
buf[1] = width;
buf[2] = height;
buf[3] = stride;
buf[4] = format;
buf[5] = static_cast<int32_t>(layerCount);
- buf[6] = usage;
+ buf[6] = int(usage); // low 32-bits
buf[7] = static_cast<int32_t>(mId >> 32);
buf[8] = static_cast<int32_t>(mId & 0xFFFFFFFFull);
buf[9] = static_cast<int32_t>(mGenerationNumber);
buf[10] = 0;
buf[11] = 0;
+ buf[12] = int(usage >> 32); // high 32-bits
if (handle) {
buf[10] = handle->numFds;
buf[11] = handle->numInts;
- memcpy(fds, handle->data,
- static_cast<size_t>(handle->numFds) * sizeof(int));
- memcpy(&buf[12], handle->data + handle->numFds,
+ memcpy(fds, handle->data, static_cast<size_t>(handle->numFds) * sizeof(int));
+ memcpy(buf + 13, handle->data + handle->numFds,
static_cast<size_t>(handle->numInts) * sizeof(int));
}
@@ -373,10 +372,21 @@ status_t GraphicBuffer::flatten(void*& buffer, size_t& size, int*& fds, size_t&
status_t GraphicBuffer::unflatten(
void const*& buffer, size_t& size, int const*& fds, size_t& count) {
- if (size < 12 * sizeof(int)) return NO_MEMORY;
int const* buf = static_cast<int const*>(buffer);
- if (buf[0] != 'GBFR') return BAD_TYPE;
+
+ // NOTE: it turns out that some media code generates a flattened GraphicBuffer manually!!!!!
+ // see H2BGraphicBufferProducer.cpp
+ uint32_t flattenWordCount = 0;
+ if (buf[0] == 'GB01') {
+ // new version with 64-bits usage bits
+ flattenWordCount = 13;
+ } else if (buf[0] == 'GBFR') {
+ // old version, when usage bits were 32-bits
+ flattenWordCount = 12;
+ } else {
+ return BAD_TYPE;
+ }
const size_t numFds = static_cast<size_t>(buf[10]);
const size_t numInts = static_cast<size_t>(buf[11]);
@@ -386,15 +396,16 @@ status_t GraphicBuffer::unflatten(
// chosen to be high enough to not cause issues and low enough to prevent
// overflow problems.
const size_t maxNumber = 4096;
- if (numFds >= maxNumber || numInts >= (maxNumber - 12)) {
- width = height = stride = format = layerCount = usage = 0;
+ if (numFds >= maxNumber || numInts >= (maxNumber - flattenWordCount)) {
+ width = height = stride = format = usage_deprecated = 0;
+ layerCount = 0;
+ usage = 0;
handle = NULL;
- ALOGE("unflatten: numFds or numInts is too large: %zd, %zd",
- numFds, numInts);
+ ALOGE("unflatten: numFds or numInts is too large: %zd, %zd", numFds, numInts);
return BAD_VALUE;
}
- const size_t sizeNeeded = (12 + numInts) * sizeof(int);
+ const size_t sizeNeeded = (flattenWordCount + numInts) * sizeof(int);
if (size < sizeNeeded) return NO_MEMORY;
size_t fdCountNeeded = numFds;
@@ -411,20 +422,29 @@ status_t GraphicBuffer::unflatten(
stride = buf[3];
format = buf[4];
layerCount = static_cast<uintptr_t>(buf[5]);
- usage = buf[6];
+ usage_deprecated = buf[6];
+ if (flattenWordCount == 13) {
+ usage = (uint64_t(buf[12]) << 32) | uint32_t(buf[6]);
+ } else {
+ usage = uint64_t(usage_deprecated);
+ }
native_handle* h = native_handle_create(
static_cast<int>(numFds), static_cast<int>(numInts));
if (!h) {
- width = height = stride = format = layerCount = usage = 0;
+ width = height = stride = format = usage_deprecated = 0;
+ layerCount = 0;
+ usage = 0;
handle = NULL;
ALOGE("unflatten: native_handle_create failed");
return NO_MEMORY;
}
memcpy(h->data, fds, numFds * sizeof(int));
- memcpy(h->data + numFds, &buf[12], numInts * sizeof(int));
+ memcpy(h->data + numFds, buf + flattenWordCount, numInts * sizeof(int));
handle = h;
} else {
- width = height = stride = format = layerCount = usage = 0;
+ width = height = stride = format = usage_deprecated = 0;
+ layerCount = 0;
+ usage = 0;
handle = NULL;
}
@@ -439,10 +459,11 @@ status_t GraphicBuffer::unflatten(
buffer_handle_t importedHandle;
status_t err = mBufferMapper.importBuffer(handle, &importedHandle);
if (err != NO_ERROR) {
- width = height = stride = format = layerCount = usage = 0;
+ width = height = stride = format = usage_deprecated = 0;
+ layerCount = 0;
+ usage = 0;
handle = NULL;
- ALOGE("unflatten: registerBuffer failed: %s (%d)",
- strerror(-err), err);
+ ALOGE("unflatten: registerBuffer failed: %s (%d)", strerror(-err), err);
return err;
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-20 16:59:06 +0000