Adding upstream version 2.10.36.upstream/2.10.36

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 252 insertions, 0 deletions

diff --git a/plug-ins/script-fu/scripts/chrome-it.scm b/plug-ins/script-fu/scripts/chrome-it.scm
new file mode 100644
index 0000000..761ac47
--- /dev/null
+++ b/plug-ins/script-fu/scripts/chrome-it.scm
@@ -0,0 +1,252 @@
+;  CHROME-IT
+;   State of the art chrome effect for user-specified mask
+;   This script requires a grayscale image containing a single layer.
+;   This layer is used as the mask for the SOTA chrome effect
+
+(define (script-fu-sota-chrome-it mask-img mask-drawable chrome-saturation
+         chrome-lightness chrome-factor env-map hc cc carve-white)
+
+  (define (set-pt a index x y)
+    (begin
+      (aset a (* index 2) x)
+      (aset a (+ (* index 2) 1) y)
+    )
+  )
+
+  (define (spline-chrome-it)
+    (let* ((a (cons-array 18 'double)))
+      (set-pt a 0 0.0   0.0)
+      (set-pt a 1 0.125 0.9216)
+      (set-pt a 2 0.25  0.0902)
+      (set-pt a 3 0.375 0.9020)
+      (set-pt a 4 0.5   0.0989)
+      (set-pt a 5 0.625 0.9549)
+      (set-pt a 6 0.75  00784)
+      (set-pt a 7 0.875 0.9412)
+      (set-pt a 8 1.0   0.1216)
+      a
+    )
+  )
+
+
+  (define (shadows val)
+    (/ (* 0.96 val) 2.55)
+  )
+
+  (define (midtones val)
+    (/ val 2.55)
+  )
+
+  (define (highlights val)
+    ; The result is used as "gimp-drawable-color-balance" color parameter
+    ; and thus must be restricted to -100.0 <= highlights <= 100.0.
+    (min (/ (* 1.108 val) 2.55) 100.0)
+  )
+
+  (define (rval col)
+    (car col)
+  )
+
+  (define (gval col)
+    (cadr col)
+  )
+
+  (define (bval col)
+    (caddr col)
+  )
+
+  (define (sota-scale val scale chrome-factor)
+    (* (sqrt val) (* scale chrome-factor))
+  )
+
+  (define (copy-layer-chrome-it dest-image dest-drawable source-image source-drawable)
+    (gimp-selection-all dest-image)
+    (gimp-drawable-edit-clear dest-drawable)
+    (gimp-selection-none dest-image)
+    (gimp-selection-all source-image)
+    (gimp-edit-copy source-drawable)
+    (let (
+         (floating-sel (car (gimp-edit-paste dest-drawable FALSE)))
+         )
+         (gimp-floating-sel-anchor floating-sel)
+    )
+  )
+
+  (let* (
+        (banding-img (car (gimp-file-load RUN-NONINTERACTIVE env-map env-map)))
+        (banding-layer (car (gimp-image-get-active-drawable banding-img)))
+        (banding-height (car (gimp-drawable-height banding-layer)))
+        (banding-width (car (gimp-drawable-width banding-layer)))
+        (banding-type (car (gimp-drawable-type banding-layer)))
+        (width (car (gimp-drawable-width mask-drawable)))
+        (height (car (gimp-drawable-height mask-drawable)))
+        (img (car (gimp-image-new width height GRAY)))
+        (size (min width height))
+        (offx1 (sota-scale size 0.33 chrome-factor))
+        (offy1 (sota-scale size 0.25 chrome-factor))
+        (offx2 (sota-scale size (- 0.33) chrome-factor))
+        (offy2 (sota-scale size (- 0.25) chrome-factor))
+        (feather (sota-scale size 0.5 chrome-factor))
+        (brush-size (sota-scale size 0.5 chrome-factor))
+        (brush-name (car (gimp-brush-new "Chrome It")))
+        (mask (car (gimp-channel-new img width height "Chrome Stencil" 50 '(0 0 0))))
+        (bg-layer (car (gimp-layer-new img width height GRAY-IMAGE _"Background" 100 LAYER-MODE-NORMAL)))
+        (layer1 (car (gimp-layer-new img banding-width banding-height banding-type _"Layer 1" 100 LAYER-MODE-NORMAL)))
+        (layer2 (car (gimp-layer-new img width height GRAYA-IMAGE _"Layer 2" 100 LAYER-MODE-DIFFERENCE)))
+        (layer3 (car (gimp-layer-new img width height GRAYA-IMAGE _"Layer 3" 100 LAYER-MODE-NORMAL)))
+        (shadow (car (gimp-layer-new img width height GRAYA-IMAGE _"Drop Shadow" 100 LAYER-MODE-NORMAL)))
+        (mask-fs 0)
+        (layer-mask 0)
+        )
+
+    (gimp-context-push)
+    (gimp-context-set-defaults)
+
+    (gimp-image-undo-disable img)
+
+    (gimp-image-insert-channel img mask -1 0)
+    (gimp-image-insert-layer img bg-layer 0 0)
+    (gimp-image-insert-layer img shadow 0 0)
+    (gimp-image-insert-layer img layer3 0 0)
+    (gimp-image-insert-layer img layer2 0 0)
+
+    (gimp-edit-copy mask-drawable)
+    (set! mask-fs (car (gimp-edit-paste mask FALSE)))
+    (gimp-floating-sel-anchor mask-fs)
+    (if (= carve-white FALSE)
+        (gimp-drawable-invert mask FALSE)
+    )
+
+    (gimp-context-set-background '(255 255 255))
+    (gimp-selection-none img)
+    (gimp-drawable-edit-fill layer2 FILL-BACKGROUND)
+    (gimp-drawable-edit-fill layer3 FILL-BACKGROUND)
+    (gimp-drawable-edit-clear shadow)
+
+    (gimp-item-set-visible bg-layer FALSE)
+    (gimp-item-set-visible shadow FALSE)
+
+    (gimp-image-select-item img CHANNEL-OP-REPLACE mask)
+    (gimp-context-set-background '(0 0 0))
+    (gimp-selection-translate img offx1 offy1)
+    (gimp-selection-feather img feather)
+    (gimp-drawable-edit-fill layer2 FILL-BACKGROUND)
+    (gimp-selection-translate img (* 2 offx2) (* 2 offy2))
+    (gimp-drawable-edit-fill layer3 FILL-BACKGROUND)
+    (gimp-selection-none img)
+    (set! layer2 (car (gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
+    (gimp-drawable-invert layer2 FALSE)
+
+    (gimp-image-insert-layer img layer1 0 0)
+    (copy-layer-chrome-it img layer1 banding-img banding-layer)
+    (gimp-image-delete banding-img)
+    (gimp-layer-scale layer1 width height FALSE)
+    (plug-in-gauss-iir RUN-NONINTERACTIVE img layer1 10 TRUE TRUE)
+    (gimp-layer-set-opacity layer1 50)
+    (set! layer1 (car (gimp-image-merge-visible-layers img CLIP-TO-IMAGE)))
+    (gimp-drawable-curves-spline layer1 HISTOGRAM-VALUE 18 (spline-chrome-it))
+
+    (set! layer-mask (car (gimp-layer-create-mask layer1 ADD-MASK-BLACK)))
+    (gimp-layer-add-mask layer1 layer-mask)
+    (gimp-image-select-item img CHANNEL-OP-REPLACE mask)
+    (gimp-context-set-background '(255 255 255))
+    (gimp-drawable-edit-fill layer-mask FILL-BACKGROUND)
+
+    (set! layer2 (car (gimp-layer-copy layer1 TRUE)))
+    (gimp-image-insert-layer img layer2 0 0)
+
+    (gimp-brush-set-shape brush-name BRUSH-GENERATED-CIRCLE)
+    (gimp-brush-set-spikes brush-name 2)
+    (gimp-brush-set-hardness brush-name 1.0)
+    (gimp-brush-set-spacing brush-name 25)
+    (gimp-brush-set-aspect-ratio brush-name 1)
+    (gimp-brush-set-angle brush-name 0)
+    (cond (<= brush-size 17) (gimp-brush-set-radius brush-name (\ brush-size 2))
+	  (else gimp-brush-set-radius brush-name (\ 19 2)))
+    (gimp-context-set-brush brush-name)
+
+    (gimp-context-set-foreground '(255 255 255))
+    (gimp-drawable-edit-stroke-selection layer-mask)
+
+    (gimp-context-set-background '(0 0 0))
+    (gimp-selection-feather img (* feather 1.5))
+    (gimp-selection-translate img (* 2.5 offx1) (* 2.5 offy1))
+    (gimp-drawable-edit-fill shadow FILL-BACKGROUND)
+
+    (gimp-selection-all img)
+    (gimp-context-set-pattern "Marble #1")
+    (gimp-drawable-edit-fill bg-layer FILL-PATTERN)
+    (gimp-selection-none img)
+
+    (gimp-image-convert-rgb img)
+
+    (gimp-drawable-color-balance layer1 TRANSFER-SHADOWS TRUE
+				 (shadows (rval hc))
+				 (shadows (gval hc))
+				 (shadows (bval hc)))
+    (gimp-drawable-color-balance layer1 TRANSFER-MIDTONES TRUE
+				 (midtones (rval hc))
+				 (midtones (gval hc))
+				 (midtones (bval hc)))
+    (gimp-drawable-color-balance layer1 TRANSFER-HIGHLIGHTS TRUE
+				 (highlights (rval hc))
+				 (highlights (gval hc))
+				 (highlights (bval hc)))
+
+    (gimp-drawable-color-balance layer2 TRANSFER-SHADOWS TRUE
+				 (shadows (rval cc))
+				 (shadows (gval cc))
+				 (shadows (bval cc)))
+    (gimp-drawable-color-balance layer2 TRANSFER-MIDTONES TRUE
+				 (midtones (rval cc))
+				 (midtones (gval cc))
+				 (midtones (bval cc)))
+    (gimp-drawable-color-balance layer2 TRANSFER-HIGHLIGHTS TRUE
+				 (highlights (rval cc))
+				 (highlights (gval cc))
+				 (highlights (bval cc)))
+    (gimp-drawable-hue-saturation layer2 HUE-RANGE-ALL
+				  0.0
+				  chrome-lightness
+				  chrome-saturation
+				  0.0)
+
+    (gimp-item-set-visible shadow TRUE)
+    (gimp-item-set-visible bg-layer TRUE)
+
+    (gimp-item-set-name layer2 _"Chrome")
+    (gimp-item-set-name layer1 _"Highlight")
+
+    (gimp-image-remove-channel img mask)
+
+    (gimp-brush-delete brush-name)
+
+    (gimp-display-new img)
+    (gimp-image-undo-enable img)
+
+    (gimp-context-pop)
+  )
+)
+
+(script-fu-register "script-fu-sota-chrome-it"
+  _"Stencil C_hrome..."
+  _"Add a chrome effect to the selected region (or alpha) using a specified (grayscale) stencil"
+  "Spencer Kimball"
+  "Spencer Kimball"
+  "1997"
+  "GRAY"
+  SF-IMAGE       "Chrome image"      0
+  SF-DRAWABLE    "Chrome mask"       0
+  SF-ADJUSTMENT _"Chrome saturation" '(-80 -100 100 1 10 0 0)
+  SF-ADJUSTMENT _"Chrome lightness"  '(-47 -100 100 1 10 0 0)
+  SF-ADJUSTMENT _"Chrome factor"     '(0.75 0 1 0.1 0.01 2 0)
+  SF-FILENAME   _"Environment map"
+                (string-append gimp-data-directory
+                              "/scripts/images/beavis.jpg")
+  SF-COLOR      _"Highlight balance"  '(211 95 0)
+  SF-COLOR      _"Chrome balance"     "black"
+  SF-TOGGLE     _"Chrome white areas" TRUE
+)
+
+(script-fu-menu-register "script-fu-sota-chrome-it"
+                         "<Image>/Filters/Decor")