76a2881793
This fixes a goofy problem where forking a GUI process would cowify the GraphicsBitmap for everyone making a hue confusing mess.
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
#include "GraphicsBitmap.h"
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#include <AK/kmalloc.h>
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#ifdef KERNEL
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#include <Kernel/Process.h>
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#include <Kernel/MemoryManager.h>
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#include <WindowServer/WSEventLoop.h>
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#endif
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#ifdef KERNEL
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RetainPtr<GraphicsBitmap> GraphicsBitmap::create(Process& process, const Size& size)
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{
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return adopt(*new GraphicsBitmap(process, size));
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}
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GraphicsBitmap::GraphicsBitmap(Process& process, const Size& size)
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: m_size(size)
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, m_pitch(size.width() * sizeof(RGBA32))
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, m_client_process(&process)
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{
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size_t size_in_bytes = size.width() * size.height() * sizeof(RGBA32);
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auto vmo = VMObject::create_anonymous(size_in_bytes);
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m_client_region = process.allocate_region_with_vmo(LinearAddress(), size_in_bytes, vmo.copyRef(), 0, "GraphicsBitmap (client)", true, true);
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m_client_region->set_shared(true);
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m_client_region->commit(process);
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{
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auto& server = WSEventLoop::the().server_process();
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InterruptDisabler disabler;
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m_server_region = server.allocate_region_with_vmo(LinearAddress(), size_in_bytes, move(vmo), 0, "GraphicsBitmap (server)", true, true);
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m_server_region->set_shared(true);
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}
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m_data = (RGBA32*)m_server_region->linearAddress.asPtr();
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}
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#endif
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RetainPtr<GraphicsBitmap> GraphicsBitmap::create_wrapper(const Size& size, RGBA32* data)
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{
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return adopt(*new GraphicsBitmap(size, data));
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}
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GraphicsBitmap::GraphicsBitmap(const Size& size, RGBA32* data)
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: m_size(size)
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, m_data(data)
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, m_pitch(size.width() * sizeof(RGBA32))
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{
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}
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GraphicsBitmap::~GraphicsBitmap()
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{
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#ifdef KERNEL
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if (m_client_region)
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m_client_process->deallocate_region(*m_client_region);
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if (m_server_region)
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WSEventLoop::the().server_process().deallocate_region(*m_server_region);
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#endif
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m_data = nullptr;
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}
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