X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/clg/blobdiff_plain/ed794f5724dffd427b2562d17b3555a9da219304..6dfb20397142408cc4adfa437bb12d8aa300270e:/gdk/pixbuf.lisp diff --git a/gdk/pixbuf.lisp b/gdk/pixbuf.lisp index c622cca..910e1cd 100644 --- a/gdk/pixbuf.lisp +++ b/gdk/pixbuf.lisp @@ -1,66 +1,152 @@ -;; Common Lisp bindings for GTK+ v2.0 -;; Copyright (C) 2004 Espen S. Johnsen +;; Common Lisp bindings for GTK+ v2.x +;; Copyright 2004-2005 Espen S. Johnsen ;; -;; This library is free software; you can redistribute it and/or -;; modify it under the terms of the GNU Lesser General Public -;; License as published by the Free Software Foundation; either -;; version 2 of the License, or (at your option) any later version. +;; Permission is hereby granted, free of charge, to any person obtaining +;; a copy of this software and associated documentation files (the +;; "Software"), to deal in the Software without restriction, including +;; without limitation the rights to use, copy, modify, merge, publish, +;; distribute, sublicense, and/or sell copies of the Software, and to +;; permit persons to whom the Software is furnished to do so, subject to +;; the following conditions: ;; -;; This library is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -;; Lesser General Public License for more details. +;; The above copyright notice and this permission notice shall be +;; included in all copies or substantial portions of the Software. ;; -;; You should have received a copy of the GNU Lesser General Public -;; License along with this library; if not, write to the Free Software -;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -;; $Id: pixbuf.lisp,v 1.2 2005-02-14 00:46:31 espen Exp $ +;; $Id: pixbuf.lisp,v 1.9 2008-12-10 03:01:34 espen Exp $ (in-package "GDK") -(defbinding pixbuf-get-option () (copy-of string) - (pixbuf pixbuf) - (key string)) +(defbinding %pixbuf-new () pointer + colorspace + (has-alpha boolean) + (bits-per-sample int) + (width int) + (height int)) + +(defbinding %pixbuf-new-from-data () pointer + (data pointer) + colorspace + (has-alpha boolean) + (bits-per-sample int) + (width int) + (height int) + (rowstride int) + (nil null) + (nil null)) -(defbinding %pixbuf-new-from-file () (referenced pixbuf) +(defbinding %pixbuf-new-from-xpm-data () pointer + (data (vector string))) + +(defbinding %pixbuf-new-from-file () pointer (filename pathname) - (nil gerror :out)) + (nil (or null gerror) :out)) -(defbinding %pixbuf-new-from-file-at-size () (referenced pixbuf) +(defbinding %pixbuf-new-from-file-at-size () pointer (filename pathname) (width int) (height int) - (nil gerror :out)) + (nil (or null gerror) :out)) -#+gtk2.6 -(defbinding %pixbuf-new-from-file-at-scale () (referenced pixbuf) +#?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") +(defbinding %pixbuf-new-from-file-at-scale () pointer (filename pathname) (width int) (height int) (preserve-aspect-ratio boolean) - (nil gerror :out)) - -(defun pixbuf-load (filename &key width height size (preserve-aspect-ratio t)) - #-gtk2.6 - (unless preserve-aspect-ratio - (warn ":preserve-aspect-ratio not supported with this version of Gtk")) + (nil (or null gerror) :out)) - (multiple-value-bind (pixbuf gerror) +(defun %pixbuf-load (filename width height preserve-aspect-p) + (multiple-value-bind (location gerror) (cond - (size - #-gtk2.6(%pixbuf-new-from-file-at-size filename size size) - #+gtk2.6(%pixbuf-new-from-file-at-scale filename size size preserve-aspect-ratio)) - ((and width height) - #-gtk2.6(%pixbuf-new-from-file-at-size filename width height) - #+gtk2.6(%pixbuf-new-from-file-at-scale filename width height preserve-aspect-ratio)) - ((or width height) - (error "Both :width and :height must be specified")) - (t (%pixbuf-new-from-file filename))) + ((and width height) + (%pixbuf-new-from-file-at-size filename width height)) + ((or width height) + #?-(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") + (error "Both :width and :height must be specified") + #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") + (%pixbuf-new-from-file-at-scale filename + (or width -1) (or height -1) preserve-aspect-p)) + (t (%pixbuf-new-from-file filename))) (if gerror (signal-gerror gerror) - pixbuf))) + location))) + +#?(pkg-exists-p "gtk+-2.0" :atleast-version "2.14.0") +(progn + (defbinding %pixbuf-new-from-stream () pointer + gio:input-stream-designator + (nil (or null gio:cancellable)) + (nil (or null gerror) :out)) + + (defbinding %pixbuf-new-from-stream-at-scale () pointer + gio:input-stream-designator + (width int) + (height int) + (preserve-aspect-ratio boolean) + (nil (or null gio:cancellable)) + (nil (or null gerror) :out)) + + (defun %load-from-stream (stream width height preserve-aspect-p) + (multiple-value-bind (location gerror) + (cond + ((or width height) + (%pixbuf-new-from-stream-at-scale stream + (or width -1) (or height -1) preserve-aspect-p)) + (t (%pixbuf-new-from-stream stream))) + (if gerror + (signal-gerror gerror) + location)))) + +(defmethod allocate-foreign ((pixbuf pixbuf) &key source (bits-per-sample 8) + (colorspace :rgb) (has-alpha t) width height + (preserve-aspect-ratio t) destroy stride) + (cond + ((not source) + (%pixbuf-new colorspace has-alpha bits-per-sample width height)) + ((typep source 'pointer) + ;; TODO: destory + (%pixbuf-new-from-data source colorspace has-alpha bits-per-sample width height (or stride (* width (if has-alpha 4 3))))) + ((and (vectorp source) (stringp (aref source 0))) + (%pixbuf-new-from-xpm-data source)) + ((typep source 'vector) + + ) + ((or (pathnamep source) (stringp source)) + #?-(pkg-exists-p "gtk+-2.0" :atleast-version "2.6.0") + (unless preserve-aspect-ratio + (warn ":preserve-aspect-ratio not supported with this version of Gtk")) + (%pixbuf-load source width height preserve-aspect-ratio)) + #?(pkg-exists-p "gtk+-2.0" :atleast-version "2.14.0") + ((typep source 'gio:input-stream-designator) + (%load-from-stream source width height preserve-aspect-ratio)) + ((call-next-method)))) + + +(defbinding (pixbuf-subpixbuf "gdk_pixbuf_new_subpixbuf") () + (or null (referenced pixbuf)) + pixbuf (src-x int) (src-y int) (width int) (height int)) + +(defbinding pixbuf-copy () (or null (referenced pixbuf)) + pixbuf) + + +(defbinding pixbuf-get-option () (copy-of string) + (pixbuf pixbuf) + (key string)) + +(defun pixbuf-load (filename &key width height size (preserve-aspect-ratio t)) + (make-instance 'pixbuf :source filename + :width (or size width) :height (or size height) + :preserve-aspect-ratio preserve-aspect-ratio)) ;; (defbinding pixbuf-get-file-info () (copy-of pixbuf-format) @@ -73,14 +159,14 @@ (defbinding %pixbuf-savev () boolean (filename pathname) (type string) (keys strings) - (values string) - (nil gerror :out)) + (values strings) + (nil (or null gerror) :out)) -(defun pixbuf-save (pixbuf filename type &rest options) +(defun %pixbuf-save-options (options) (let ((keys (make-array 0 :adjustable t :fill-pointer t)) (values (make-array 0 :adjustable t :fill-pointer t))) (loop - as (key value . rest) = options then rest + for (key value) on options by #'cddr do (vector-push-extend (string-downcase key) keys) (vector-push-extend (etypecase value @@ -88,13 +174,59 @@ (defun pixbuf-save (pixbuf filename type &rest options) (symbol (string-downcase value)) (number (format nil "~A" value))) values)) - (multiple-value-bind (ok-p gerror) - (%pixbuf-savev pixbuf filename type keys values) - (unless ok-p - (signal-gerror gerror))))) + (values keys values))) -(defbinding pixbuf-new-from-xpm-data () (referenced pixbuf) - (data (vector string))) +(defgeneric pixbuf-save (pixbuf dest type &rest options)) + +(defmethod pixbuf-save (pixbuf (filename string) type &rest options) + (multiple-value-bind (ok-p gerror) + (multiple-value-call #'%pixbuf-savev + pixbuf filename (string-downcase type) + (%pixbuf-save-options options)) + (unless ok-p + (signal-gerror gerror)))) + +(defmethod pixbuf-save (pixbuf (pathname pathname) type &rest options) + (apply #'pixbuf-save pixbuf (namestring (translate-logical-pathname pathname)) + type options)) + +(define-callback stream-write-func boolean + ((data pointer) (length gsize) (gerror pointer) (stream-id pointer-data)) + (block stream-write + (handler-case + (let ((stream (find-user-data stream-id))) + (write-sequence + (map-c-vector 'vector 'identity data '(unsigned-byte 8) length) + stream)) + (serious-condition (condition) + (gerror-set-in-callback gerror (file-error-domain) + (enum-int :failed 'file-error-enum) (princ-to-string condition)) + (return-from stream-write nil))) + t)) + +(defbinding %pixbuf-save-to-callbackv (pixbuf stream type keys values) boolean + (pixbuf pixbuf) + (stream-write-func callback) + (stream pointer-data) + (type string) + (keys strings) + (values strings) + (nil (or null gerror) :out)) + +(defmethod pixbuf-save (pixbuf (stream stream) type &rest options) + (let ((stream-id (register-user-data stream))) + (unwind-protect + (multiple-value-bind (ok-p gerror) + (multiple-value-call #'%pixbuf-save-to-callbackv + pixbuf stream-id (string-downcase type) + (%pixbuf-save-options options)) + (unless ok-p + (signal-gerror gerror))) + (destroy-user-data stream-id)))) + + +;; (defbinding pixbuf-new-from-xpm-data () (referenced pixbuf) +;; (data (vector string))) (defbinding %pixbuf-new-subpixbuf () pixbuf ;; or (referenced pixbuf)? (pixbuf pixbuf) @@ -108,6 +240,69 @@ (defun copy-pixbuf (pixbuf &optional x y width height) (%pixbuf-copy pixbuf) (%pixbuf-new-subpixbuf pixbuf x y width height))) +(defbinding %pixbuf-get-from-drawable () (or null (referenced pixbuf)) + (dest (or null pixbuf)) + (drawable drawable) + (colormap (or null colormap)) + (src-x int) + (src-y int) + (dest-x int) + (dest-y int) + (width int) + (height int)) + +(defun pixbuf-get-from-drawable (drawable &key (src-x 0) (src-y 0) (dest-x 0) (dest-y 0) width height colormap dest) + (unless (or (and width height) (not (typep drawable 'window))) + (error "Width and height must be specified for windows")) + (or + (%pixbuf-get-from-drawable dest drawable + (cond + (colormap) + ((slot-boundp drawable 'colormap) nil) + ((colormap-get-system))) + src-x src-y dest-x dest-y (or width -1) (or height -1)) + (error "Couldn't get pixbuf from drawable"))) + + +;;; Pixbuf Loader + +(defbinding %pixbuf-loader-new-with-type () pointer + (type string) + (nil gerror-signal :out)) + +(defbinding %pixbuf-loader-new-with-mime-type () pointer + (mime-type string) + (nil gerror-signal :out)) + +(defmethod allocate-foreign ((loader pixbuf-loader) &key type mime-type) + (cond + ((and type mime-type) + (error "Only one of the keyword arguments :TYPE and :MIME-TYPE can be specified")) + (type (%pixbuf-loader-new-with-type type)) + (mime-type (%pixbuf-loader-new-with-mime-type mime-type)) + ((call-next-method)))) + +(defbinding pixbuf-loader-write (loader buffer &optional (length (length buffer))) boolean + (loader pixbuf-loader) + (buffer (unboxed-vector (unsigned-byte 8))) + (length integer) + (nil gerror-signal :out)) + +(defbinding pixbuf-loader-close () boolean + (loader pixbuf-loader) + (nil gerror-signal :out)) + +(defbinding pixbuf-loader-get-pixbuf () (or null pixbuf) + (loader pixbuf-loader)) + +(defbinding pixbuf-loader-get-animation () (or null pixbuf-animation) + (loader pixbuf-loader)) + +(defbinding pixbuf-loader-set-size () nil + (loader pixbuf-loader) + (width integer) + (height integer)) + ;;; Utilities @@ -119,3 +314,25 @@ (defbinding pixbuf-add-alpha (red (unsigned 8)) (green (unsigned 8)) (blue (unsigned 8))) + +;; The purpose of this function is to be able to share pixel data +;; between GdkPixbufs and Cairo image surfaces. +#+nil +(defun pixbuf-swap-rgb (pixbuf) + (assert (= (pixbuf-bits-per-sample pixbuf) 8)) + (assert (= (pixbuf-n-channels pixbuf) 4)) + (assert (pixbuf-has-alpha-p pixbuf)) + (let ((pixels (pixbuf-pixels pixbuf)) + (stride (pixbuf-rowstride pixbuf)) + (n-channels (pixbuf-n-channels pixbuf))) + (loop for y from 0 below (pixbuf-height pixbuf) do + (let ((row-offset (* y stride))) + (loop for x from 0 below (pixbuf-width pixbuf) do + (let* ((offset (+ row-offset (* n-channels x))) + (p0 (ref-uint-8 pixels offset)) + (p2 (ref-uint-8 pixels (+ offset 2)))) + (setf (ref-uint-8 pixels offset) p2) + (setf (ref-uint-8 pixels (+ offset 2)) p0))))))) + +(defbinding (pixbuf-swap-rgb "clg_gdk_pixbuf_swap_rgb") () nil + pixbuf)