Source/WebCore/PAL/pal/graphics/WebGPU/Impl/WebGPUTextureImpl.cpp

/*
 * Copyright (C) 2021 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *    notice, this list of conditions and the following disclaimer.
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 *    notice, this list of conditions and the following disclaimer in the
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 *
 * 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
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#include "config.h"
#include "WebGPUTextureImpl.h"

#if HAVE(WEBGPU_IMPLEMENTATION)

#include "WebGPUConvertToBackingContext.h"
#include "WebGPUTextureView.h"
#include "WebGPUTextureViewDescriptor.h"
#include "WebGPUTextureViewImpl.h"
#include <WebGPU/WebGPUExt.h>

namespace PAL::WebGPU {

TextureImpl::TextureImpl(WGPUTexture texture, TextureFormat format, TextureDimension dimension, ConvertToBackingContext& convertToBackingContext)
    : m_format(format)
    , m_dimension(dimension)
    , m_backing(texture)
    , m_convertToBackingContext(convertToBackingContext)
{
}

TextureImpl::~TextureImpl()
{
    wgpuTextureRelease(m_backing);
}

Ref<TextureView> TextureImpl::createView(const std::optional<TextureViewDescriptor>& descriptor)
{
    CString label = descriptor ? descriptor->label.utf8() : CString("");

    WGPUTextureViewDescriptor backingDescriptor {
        nullptr,
        label.data(),
        descriptor && descriptor->format ? m_convertToBackingContext->convertToBacking(*descriptor->format) : m_convertToBackingContext->convertToBacking(m_format),
        ([&] () -> WGPUTextureViewDimension {
            if (descriptor && descriptor->dimension)
                return m_convertToBackingContext->convertToBacking(*descriptor->dimension);
            switch (m_dimension) {
            case TextureDimension::_1d:
                return WGPUTextureViewDimension_1D;
            case TextureDimension::_2d:
                return WGPUTextureViewDimension_2D;
            case TextureDimension::_3d:
                return WGPUTextureViewDimension_2D;
            }
        })(),
        descriptor ? descriptor->baseMipLevel : 0,
        descriptor && descriptor->mipLevelCount ? *descriptor->mipLevelCount : static_cast<uint32_t>(WGPU_MIP_LEVEL_COUNT_UNDEFINED),
        descriptor ? descriptor->baseArrayLayer : 0,
        descriptor && descriptor->arrayLayerCount ? *descriptor->arrayLayerCount : static_cast<uint32_t>(WGPU_ARRAY_LAYER_COUNT_UNDEFINED),
        descriptor ? m_convertToBackingContext->convertToBacking(descriptor->aspect) : WGPUTextureAspect_All,
    };

    return TextureViewImpl::create(wgpuTextureCreateView(m_backing, &backingDescriptor), m_convertToBackingContext);
}

void TextureImpl::destroy()
{
    wgpuTextureDestroy(m_backing);
}

void TextureImpl::setLabelInternal(const String& label)
{
    wgpuTextureSetLabel(m_backing, label.utf8().data());
}

} // namespace PAL::WebGPU

#endif // HAVE(WEBGPU_IMPLEMENTATION)