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Commit aa181aec authored by Marissa Wall's avatar Marissa Wall
Browse files

gralloc: require locked buffers follow format 

Clarify that buffers that are locked (mapped) to the CPU must
be in the format requested in their BufferDescriptorInfo.
The buffers should not be compressed/swizzled/tiled/etc.

Bug: 141631415
Test: This is already assumed by the tests.

Change-Id: Ie674117418aaefc3f99ac2bc89c3da4072e236ec
parent cad3cdaf

graphics/mapper/4.0/IMapper.hal

+3 −0
Original line number Diff line number Diff line
@@ -202,6 +202,9 @@ interface IMapper { 
     * the buffer. If the bytesPerStride is unknown or variable, a value of -1

     * should be returned.

     *

     * The locked buffer must adhere to the format requested at allocation time

     * in the BufferDescriptorInfo.

     *

     * @param buffer Buffer to lock.

     * @param cpuUsage CPU usage flags to request. See +ndk

     *     libnativewindow#AHardwareBuffer_UsageFlags for possible values.