LibCore: Add a wrapper for IOSurface

Going to be used for backing store in upcoming changes.
This commit is contained in:
Aliaksandr Kalenik 2024-06-20 21:33:34 +03:00 committed by Andreas Kling
parent c46bea479c
commit e37071ae05
Notes: sideshowbarker 2024-07-16 23:54:15 +09:00
4 changed files with 170 additions and 1 deletions

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@ -83,6 +83,10 @@ if (APPLE OR CMAKE_SYSTEM_NAME STREQUAL "GNU")
list(APPEND SOURCES MachPort.cpp)
endif()
if (APPLE)
list(APPEND SOURCES IOSurface.cpp)
endif()
serenity_lib(LibCore core)
target_link_libraries(LibCore PRIVATE LibCrypt LibTimeZone LibURL)
target_link_libraries(LibCore PUBLIC LibCoreMinimal)
@ -91,6 +95,7 @@ if (APPLE)
target_link_libraries(LibCore PUBLIC "-framework CoreFoundation")
target_link_libraries(LibCore PUBLIC "-framework CoreServices")
target_link_libraries(LibCore PUBLIC "-framework Foundation")
target_link_libraries(LibCore PUBLIC "-framework IOSurface")
endif()
if (ANDROID)

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@ -0,0 +1,122 @@
/*
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/OwnPtr.h>
#include <LibCore/IOSurface.h>
#if !defined(AK_OS_MACOS)
static_assert(false, "This file must only be used for macOS");
#endif
#define FixedPoint FixedPointMacOS
#define Duration DurationMacOS
#include <IOSurface/IOSurface.h>
#undef FixedPoint
#undef Duration
namespace Core {
template<typename T>
class RefAutoRelease {
AK_MAKE_NONCOPYABLE(RefAutoRelease);
public:
RefAutoRelease(T ref)
: m_ref(ref)
{
}
~RefAutoRelease()
{
if (m_ref)
CFRelease(m_ref);
m_ref = nullptr;
}
T ref() const { return m_ref; }
private:
T m_ref { nullptr };
};
struct IOSurfaceHandle::IOSurfaceRefWrapper {
IOSurfaceRef ref;
};
IOSurfaceHandle::IOSurfaceHandle(OwnPtr<IOSurfaceRefWrapper>&& ref_wrapper)
: m_ref_wrapper(move(ref_wrapper))
{
}
IOSurfaceHandle::IOSurfaceHandle(IOSurfaceHandle&& other) = default;
IOSurfaceHandle& IOSurfaceHandle::operator=(IOSurfaceHandle&& other) = default;
IOSurfaceHandle::~IOSurfaceHandle()
{
if (m_ref_wrapper)
CFRelease(m_ref_wrapper->ref);
}
IOSurfaceHandle IOSurfaceHandle::create(int width, int height)
{
size_t bytes_per_element = 4;
uint32_t pixel_format = 'BGRA';
RefAutoRelease<CFNumberRef> width_number = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &width);
RefAutoRelease<CFNumberRef> height_number = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &height);
RefAutoRelease<CFNumberRef> bytes_per_element_number = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &bytes_per_element);
RefAutoRelease<CFNumberRef> pixel_format_number = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &pixel_format);
CFMutableDictionaryRef props = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(props, kIOSurfaceWidth, width_number.ref());
CFDictionarySetValue(props, kIOSurfaceHeight, height_number.ref());
CFDictionarySetValue(props, kIOSurfaceBytesPerElement, bytes_per_element_number.ref());
CFDictionarySetValue(props, kIOSurfacePixelFormat, pixel_format_number.ref());
auto* ref = IOSurfaceCreate(props);
VERIFY(ref);
return IOSurfaceHandle(make<IOSurfaceRefWrapper>(ref));
}
MachPort IOSurfaceHandle::create_mach_port() const
{
auto port = IOSurfaceCreateMachPort(m_ref_wrapper->ref);
return MachPort::adopt_right(port, MachPort::PortRight::Send);
}
IOSurfaceHandle IOSurfaceHandle::from_mach_port(MachPort const& port)
{
// NOTE: This call does not destroy the port
auto* ref = IOSurfaceLookupFromMachPort(port.port());
VERIFY(ref);
return IOSurfaceHandle(make<IOSurfaceRefWrapper>(ref));
}
size_t IOSurfaceHandle::width() const
{
return IOSurfaceGetWidth(m_ref_wrapper->ref);
}
size_t IOSurfaceHandle::height() const
{
return IOSurfaceGetHeight(m_ref_wrapper->ref);
}
size_t IOSurfaceHandle::bytes_per_element() const
{
return IOSurfaceGetBytesPerElement(m_ref_wrapper->ref);
}
void* IOSurfaceHandle::data() const
{
return IOSurfaceGetBaseAddress(m_ref_wrapper->ref);
}
}

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@ -0,0 +1,42 @@
/*
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Forward.h>
#include <AK/Noncopyable.h>
#include <LibCore/MachPort.h>
namespace Core {
class IOSurfaceHandle {
AK_MAKE_NONCOPYABLE(IOSurfaceHandle);
public:
IOSurfaceHandle(IOSurfaceHandle&& other);
IOSurfaceHandle& operator=(IOSurfaceHandle&& other);
static IOSurfaceHandle create(int width, int height);
static IOSurfaceHandle from_mach_port(MachPort const& port);
MachPort create_mach_port() const;
size_t width() const;
size_t height() const;
size_t bytes_per_element() const;
void* data() const;
~IOSurfaceHandle();
private:
struct IOSurfaceRefWrapper;
IOSurfaceHandle(OwnPtr<IOSurfaceRefWrapper>&&);
OwnPtr<IOSurfaceRefWrapper> m_ref_wrapper;
};
}

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@ -69,7 +69,7 @@ public:
#endif
// FIXME: mach_msg wrapper? For now just let the owner poke into the internals
mach_port_t port() { return m_port; }
mach_port_t port() const { return m_port; }
private:
MachPort(PortRight, mach_port_t);