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;;; Chickadee Game Toolkit
;;; Copyright © 2023 David Thompson <dthompson2@worcester.edu>
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
;;; Commentary:
;;
;; GPU render passes.
;;
;;; Code:
(define-module (chickadee graphics pass)
#:use-module (chickadee graphics color)
#:use-module (chickadee graphics depth-stencil)
#:use-module (srfi srfi-9)
#:export (<color-attachment>
make-color-attachment
color-attachment?
color-attachment-view
color-attachment-resolve-target
color-attachment-clear-color
color-attachment-load-op
color-attachment-store-op
<depth+stencil-attachment>
make-depth+stencil-attachment
depth+stencil-attachment?
depth+stencil-attachment-view
depth+stencil-attachment-depth-clear-value
depth+stencil-attachment-depth-load-op
depth+stencil-attachment-depth-store-op
depth+stencil-attachment-depth-read-only?
depth+stencil-attachment-stencil-clear-value
depth+stencil-attachment-stencil-load-op
depth+stencil-attachment-stencil-store-op
depth+stencil-attachment-stencil-read-only?
<render-pass>
make-render-pass
render-pass?
render-pass-color-attachments
render-pass-depth+stencil-attachment))
(define-record-type <color-attachment>
(%make-color-attachment view resolve-target operation)
color-attachment?
(view color-attachment-view)
(resolve-target color-attachment-resolve-target)
(operation color-attachment-operation))
(define* (make-color-attachment #:key view resolve-target
(operation (make-color-operation)))
(%make-color-attachment view resolve-target operation))
(define-record-type <depth+stencil-attachment>
(%make-depth+stencil-attachment view depth-operation stencil-operation)
depth+stencil-attachment?
(view depth+stencil-attachment-view)
(depth-operation depth+stencil-attachment-depth-operation)
(stencil-operation depth+stencil-attachment-stencil-operation))
(define* (make-depth+stencil-attachment #:key view
(depth-operation (make-depth-operation))
(stencil-operation (make-stencil-operation)))
(%make-depth+stencil-attachment view depth-operation stencil-operation))
(define-record-type <render-pass>
(%make-render-pass color-attachments depth+stencil-attachment)
render-pass?
(color-attachments render-pass-color-attachments)
(depth+stencil-attachment render-pass-depth+stencil-attachment))
(define* (make-render-pass #:key (color-attachments #())
depth+stencil-attachment)
(%make-render-pass color-attachments depth+stencil-attachment))
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