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Diffstat (limited to 'chickadee/graphics/stencil.scm')
| -rw-r--r-- | chickadee/graphics/stencil.scm | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/chickadee/graphics/stencil.scm b/chickadee/graphics/stencil.scm deleted file mode 100644 index bc4cef2..0000000 --- a/chickadee/graphics/stencil.scm +++ /dev/null @@ -1,141 +0,0 @@ -;;; Chickadee Game Toolkit -;;; Copyright © 2020, 2021 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. - -(define-module (chickadee graphics stencil) - #:use-module (ice-9 match) - #:use-module (gl) - #:use-module (chickadee graphics engine) - #:use-module (chickadee graphics gl) - #:use-module (srfi srfi-9) - #:export (make-stencil-test - stencil-test? - stencil-test-mask-front - stencil-test-mask-back - stencil-test-function-front - stencil-test-function-back - stencil-test-function-mask-front - stencil-test-function-mask-back - stencil-test-reference-front - stencil-test-reference-back - stencil-test-on-fail-front - stencil-test-on-fail-back - stencil-test-on-depth-fail-front - stencil-test-on-depth-fail-back - stencil-test-on-pass-front - stencil-test-on-pass-back - default-stencil-test - g:stencil-test - current-stencil-test)) - -(define-record-type <stencil-test> - (%make-stencil-test mask-front mask-back function-front function-back - function-mask-front function-mask-back - reference-front reference-back - on-fail-front on-fail-back - on-depth-fail-front on-depth-fail-back - on-pass-front on-pass-back) - stencil-test? - (mask-front stencil-test-mask-front) - (mask-back stencil-test-mask-back) - (function-front stencil-test-function-front) - (function-back stencil-test-function-back) - (function-mask-front stencil-test-function-mask-front) - (function-mask-back stencil-test-function-mask-back) - (reference-front stencil-test-reference-front) - (reference-back stencil-test-reference-back) - (on-fail-front stencil-test-on-fail-front) - (on-fail-back stencil-test-on-fail-back) - (on-depth-fail-front stencil-test-on-depth-fail-front) - (on-depth-fail-back stencil-test-on-depth-fail-back) - (on-pass-front stencil-test-on-pass-front) - (on-pass-back stencil-test-on-pass-back)) - -(define* (make-stencil-test #:key (mask #xFF) (function 'always) - (function-mask #xFF) (reference 0) - (on-fail 'keep) (on-depth-fail 'keep) (on-pass 'keep) - (mask-front mask) (mask-back mask) - (function-front function) (function-back function) - (function-mask-front function-mask) - (function-mask-back function-mask) - (reference-front reference) - (reference-back reference) - (on-fail-front on-fail) (on-fail-back on-fail) - (on-depth-fail-front on-depth-fail) - (on-depth-fail-back on-depth-fail) - (on-pass-front on-pass) (on-pass-back on-pass)) - (%make-stencil-test mask-front mask-back function-front function-back - function-mask-front function-mask-back - reference-front reference-back - on-fail-front on-fail-back - on-depth-fail-front on-depth-fail-back - on-pass-front on-pass-back)) - -(define default-stencil-test (make-stencil-test)) - -(define* (bind-stencil-test stencil) - (define (symbol->op sym) - (match sym - ('zero (stencil-op zero)) - ('keep (stencil-op keep)) - ('replace (stencil-op replace)) - ('increment (stencil-op incr)) - ('increment-wrap (version-1-4 incr-wrap)) - ('decrement (stencil-op decr)) - ('decrement-wrap (version-1-4 decr-wrap)) - ('invert (stencil-op invert)))) - (define (symbol->function sym) - (match sym - ('always (stencil-function always)) - ('never (stencil-function never)) - ('less-than (stencil-function less)) - ('equal (stencil-function equal)) - ('less-than-or-equal (stencil-function lequal)) - ('greater-than (stencil-function greater)) - ('greater-than-or-equal (stencil-function gequal)) - ('not-equal (stencil-function notequal)))) - (if stencil - (begin - (gl-enable (enable-cap stencil-test)) - ;; Mask - (gl-stencil-mask-separate (cull-face-mode front) - (stencil-test-mask-front stencil)) - (gl-stencil-mask-separate (cull-face-mode back) - (stencil-test-mask-back stencil)) - ;; Function - (gl-stencil-func-separate (cull-face-mode front) - (symbol->function - (stencil-test-function-front stencil)) - (stencil-test-reference-front stencil) - (stencil-test-function-mask-front stencil)) - (gl-stencil-func-separate (cull-face-mode back) - (symbol->function - (stencil-test-function-back stencil)) - (stencil-test-reference-back stencil) - (stencil-test-function-mask-back stencil)) - ;; Operation - (gl-stencil-op-separate (cull-face-mode front) - (symbol->op (stencil-test-on-fail-front stencil)) - (symbol->op (stencil-test-on-depth-fail-front stencil)) - (symbol->op (stencil-test-on-pass-front stencil))) - (gl-stencil-op-separate (cull-face-mode back) - (symbol->op (stencil-test-on-fail-back stencil)) - (symbol->op (stencil-test-on-depth-fail-back stencil)) - (symbol->op (stencil-test-on-pass-back stencil)))) - (gl-disable (enable-cap stencil-test)))) - -(define-graphics-state g:stencil-test - current-stencil-test - #:default default-stencil-test - #:bind bind-stencil-test) |