70 lines
2.9 KiB
Swift
70 lines
2.9 KiB
Swift
/******************************************************************************
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Copyright (C) 2024 by Patrick Heyer <PatTheMav@users.noreply.github.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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import Foundation
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import Metal
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/// Creates ``MetalTexture`` for use as a depth stencil attachment
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/// - Parameters:
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/// - device: Opaque pointer to ``MetalDevice`` instance shared with `libobs`
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/// - width: Desired width of the texture
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/// - height: Desired height of the texture
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/// - color_format: Desired color format of the depth stencil attachment as described by `gs_zstencil_format`
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/// - Returns: Opaque pointer to a created ``MetalTexture`` instance or a `NULL` pointer on error
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@_cdecl("device_zstencil_create")
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public func device_zstencil_create(device: UnsafeRawPointer, width: UInt32, height: UInt32, format: gs_zstencil_format)
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-> OpaquePointer?
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{
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let device: MetalDevice = unretained(device)
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let descriptor = MTLTextureDescriptor.init(
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width: width,
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height: height,
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colorFormat: format
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)
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guard let descriptor, let texture = MetalTexture(device: device, descriptor: descriptor) else {
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return nil
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}
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return texture.getRetained()
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}
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/// Gets the ``MetalTexture`` instance used as the depth stencil attachment for the current pipeline
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/// - Parameter device: Opaque pointer to ``MetalDevice`` instance shared with `libobs`
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/// - Returns: Opaque pointer to ``MetalTexture`` instance if any is set, `nil` otherwise
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@_cdecl("device_get_zstencil_target")
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public func device_get_zstencil_target(device: UnsafeRawPointer) -> OpaquePointer? {
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let device: MetalDevice = unretained(device)
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guard let stencilAttachment = device.renderState.depthStencilAttachment else {
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return nil
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}
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return stencilAttachment.getUnretained()
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}
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/// Requests deinitialization of the ``MetalTexture`` instance shared with `libobs`
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/// - Parameter zstencil: Opaque pointer to ``MetalTexture`` instance shared with `libobs`
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///
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/// The ownership of the shared pointer is transferred into this function and the instance is placed under Swift's
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/// memory management again.
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@_cdecl("gs_zstencil_destroy")
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public func gs_zstencil_destroy(zstencil: UnsafeRawPointer) {
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let _ = retained(zstencil) as MetalTexture
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}
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