// Copyright 2024 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
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//    this list of conditions and the following disclaimer in the documentation
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//    this software without specific prior written permission.
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#include "dawn/wire/server/ObjectStorage.h"
#include "dawn/wire/server/Server.h"

namespace dawn::wire::server {

WireResult Server::DoSurfaceGetCurrentTexture(Known<WGPUSurface> surface,
                                              Known<WGPUDevice> configuredDevice,
                                              ObjectHandle textureHandle) {
    Reserved<WGPUTexture> texture;
    WIRE_TRY(Allocate(&texture, textureHandle, AllocationState::Reserved));

    WGPUSurfaceTexture surfaceTexture;
    mProcs.surfaceGetCurrentTexture(surface->handle, &surfaceTexture);

    if (surfaceTexture.texture != nullptr) {
        return FillReservation(texture.id, surfaceTexture.texture);
    } else {
        // The client always assumes that a texture will be associated with the reservation, so
        // create an error texture on the configured device.
        WGPUTextureDescriptor desc = WGPU_TEXTURE_DESCRIPTOR_INIT;
        WGPUTexture errorTexture = mProcs.deviceCreateErrorTexture(configuredDevice->handle, &desc);
        return FillReservation(texture.id, errorTexture);
    }
}

}  // namespace dawn::wire::server