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Add a C++ helper class for working with shared buffers.

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This is a bit more comfortable than passing the shared buffer ID manually
everywhere and keeping track of size etc.
This commit is contained in:
Andreas Kling 2019-03-08 12:22:55 +01:00
parent 0b5d5fc3c9
commit eda0866992
14 changed files with 186 additions and 46 deletions
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15
WindowServer/WSClientConnection.cpp
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@ -6,6 +6,7 @@
#include <WindowServer/WSWindow.h>
#include <WindowServer/WSWindowManager.h>
#include <WindowServer/WSAPITypes.h>
#include <SharedBuffer.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <errno.h>
@ -86,12 +87,9 @@ void WSClientConnection::post_message(const WSAPI_ServerMessage& message)
RetainPtr<GraphicsBitmap> WSClientConnection::create_shared_bitmap(GraphicsBitmap::Format format, const Size& size)
{
RGBA32* buffer;
int shared_buffer_id = create_shared_buffer(m_pid, size.area() * sizeof(RGBA32), (void**)&buffer);
ASSERT(shared_buffer_id >= 0);
ASSERT(buffer);
ASSERT(buffer != (void*)-1);
return GraphicsBitmap::create_with_shared_buffer(format, shared_buffer_id, size, buffer);
auto shared_buffer = SharedBuffer::create(m_pid, size.area() * sizeof(RGBA32));
ASSERT(shared_buffer);
return GraphicsBitmap::create_with_shared_buffer(format, *shared_buffer, size);
}
void WSClientConnection::on_message(WSMessage& message)
@ -407,9 +405,12 @@ void WSClientConnection::handle_request(WSAPISetWindowBackingStoreRequest& reque
return;
}
auto& window = *(*it).value;
auto shared_buffer = SharedBuffer::create_from_shared_buffer_id(request.shared_buffer_id());
if (!shared_buffer)
return;
auto backing_store = GraphicsBitmap::create_with_shared_buffer(
request.has_alpha_channel() ? GraphicsBitmap::Format::RGBA32 : GraphicsBitmap::Format::RGB32,
request.shared_buffer_id(),
*shared_buffer,
request.size());
if (!backing_store)
return;