GPURenderPassColorAttachmentDescriptorMetal.mm   [plain text]

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
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 *
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#import "config.h"
#import "GPURenderPassColorAttachmentDescriptor.h"

#if ENABLE(WEBGPU)

#import "GPURenderPassAttachmentDescriptor.h"
#import "Logging.h"

#import <Metal/Metal.h>

namespace WebCore {

RefPtr<GPURenderPassColorAttachmentDescriptor> GPURenderPassColorAttachmentDescriptor::create(MTLRenderPassColorAttachmentDescriptor *colorAttachmentDescriptor)
{
    RefPtr<GPURenderPassColorAttachmentDescriptor> descriptor = adoptRef(new GPURenderPassColorAttachmentDescriptor(colorAttachmentDescriptor));
    return descriptor;
}

GPURenderPassColorAttachmentDescriptor::GPURenderPassColorAttachmentDescriptor(MTLRenderPassColorAttachmentDescriptor *attachmentDescriptor)
    : GPURenderPassAttachmentDescriptor(attachmentDescriptor)
{
    LOG(WebGPU, "GPURenderPassColorAttachmentDescriptor::GPURenderPassColorAttachmentDescriptor()");
}

Vector<float> GPURenderPassColorAttachmentDescriptor::clearColor() const
{
    MTLRenderPassColorAttachmentDescriptor *colorAttachmentDescriptor = static_cast<MTLRenderPassColorAttachmentDescriptor *>(m_renderPassAttachmentDescriptor.get());
    if (!colorAttachmentDescriptor)
        return Vector<float>();

    MTLClearColor color = [colorAttachmentDescriptor clearColor];
    return Vector<float>({static_cast<float>(color.red), static_cast<float>(color.green), static_cast<float>(color.blue), static_cast<float>(color.alpha)});
}

void GPURenderPassColorAttachmentDescriptor::setClearColor(const Vector<float>& newClearColor)
{
    MTLRenderPassColorAttachmentDescriptor *colorAttachmentDescriptor = platformRenderPassColorAttachmentDescriptor();
    if (!colorAttachmentDescriptor || newClearColor.size() != 4)
        return;

    MTLClearColor clearColor = MTLClearColorMake(newClearColor[0], newClearColor[1], newClearColor[2], newClearColor[3]);
    [colorAttachmentDescriptor setClearColor:clearColor];
}

MTLRenderPassColorAttachmentDescriptor *GPURenderPassColorAttachmentDescriptor::platformRenderPassColorAttachmentDescriptor()
{
    return static_cast<MTLRenderPassColorAttachmentDescriptor *>(platformRenderPassAttachmentDescriptor());
}

} // namespace WebCore

#endif