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/*
* Copyright (C) 2022-2024 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Float16ArrayPixelBuffer.h"
#if ENABLE(PIXEL_FORMAT_RGBA16F)
#include <JavaScriptCore/TypedArrayInlines.h>
namespace WebCore {
Ref<Float16ArrayPixelBuffer> Float16ArrayPixelBuffer::create(const PixelBufferFormat& format, const IntSize& size, JSC::Float16Array& data)
{
ASSERT(format.pixelFormat == PixelFormat::RGBA16F);
return adoptRef(*new Float16ArrayPixelBuffer(format, size, { data }));
}
std::optional<Ref<Float16ArrayPixelBuffer>> Float16ArrayPixelBuffer::create(const PixelBufferFormat& format, const IntSize& size, std::span<const Float16> data)
{
if (format.pixelFormat != PixelFormat::RGBA16F) {
ASSERT_NOT_REACHED();
return std::nullopt;
}
auto computedBufferSize = PixelBuffer::computeBufferSize(format.pixelFormat, size);
if (computedBufferSize.hasOverflowed()) {
ASSERT_NOT_REACHED();
return std::nullopt;
}
if (data.size_bytes() != computedBufferSize.value()) {
ASSERT_NOT_REACHED();
return std::nullopt;
}
auto buffer = JSC::Float16Array::tryCreate(data);
if (!buffer) {
ASSERT_NOT_REACHED();
return std::nullopt;
}
return Float16ArrayPixelBuffer::create(format, size, buffer.releaseNonNull());
}
RefPtr<Float16ArrayPixelBuffer> Float16ArrayPixelBuffer::tryCreate(const PixelBufferFormat& format, const IntSize& size)
{
ASSERT(supportedPixelFormat(format.pixelFormat));
if (format.pixelFormat != PixelFormat::RGBA16F) {
ASSERT_NOT_REACHED();
return nullptr;
}
auto bufferSize = computeBufferSize(format.pixelFormat, size);
if (bufferSize.hasOverflowed())
return nullptr;
auto data = JSC::Float16Array::tryCreateUninitialized(bufferSize / sizeof(Float16));
if (!data)
return nullptr;
return create(format, size, data.releaseNonNull());
}
RefPtr<Float16ArrayPixelBuffer> Float16ArrayPixelBuffer::tryCreate(const PixelBufferFormat& format, const IntSize& size, Ref<JSC::ArrayBuffer>&& arrayBuffer)
{
ASSERT(supportedPixelFormat(format.pixelFormat));
if (format.pixelFormat != PixelFormat::RGBA16F) {
ASSERT_NOT_REACHED();
return nullptr;
}
auto bufferSize = computeBufferSize(format.pixelFormat, size);
if (bufferSize.hasOverflowed())
return nullptr;
if (bufferSize != arrayBuffer->byteLength())
return nullptr;
Ref data = JSC::Float16Array::create(WTFMove(arrayBuffer));
return create(format, size, WTFMove(data));
}
Float16ArrayPixelBuffer::Float16ArrayPixelBuffer(const PixelBufferFormat& format, const IntSize& size, Ref<JSC::Float16Array>&& data)
: PixelBuffer(format, size, data->mutableSpan())
, m_data(WTFMove(data))
{
}
RefPtr<PixelBuffer> Float16ArrayPixelBuffer::createScratchPixelBuffer(const IntSize& size) const
{
return Float16ArrayPixelBuffer::tryCreate(m_format, size);
}
std::span<const uint8_t> Float16ArrayPixelBuffer::span() const
{
Ref data = m_data;
ASSERT(data->byteLength() == (m_size.area() * 4 * sizeof(Float16)));
return data->span();
}
} // namespace WebCore
#endif // ENABLE(PIXEL_FORMAT_RGBA16F)
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