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working on openStream() and loadImage() issues

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This commit is contained in:
benfry
2005-11-07 18:00:22 +00:00
parent e9ec4d8218
commit 42ccd0cead
4 changed files with 93 additions and 65 deletions
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core/PApplet.java
+38 -23
View File
@@ -445,6 +445,12 @@ public class PApplet extends Applet
// stop method register list)
}
try {
if (path == null) {
System.getProperty("user.dir");
}
} catch (Exception e) { } // may be a security problem
// create a dummy graphics context
size(DEFAULT_WIDTH, DEFAULT_HEIGHT);
//size(INITIAL_WIDTH, INITIAL_HEIGHT);
@@ -3174,16 +3180,27 @@ public class PApplet extends Applet
* but want an InputStream object so that you can use other Java
* methods to take more control of how the stream is read.
* <P>
* If the requested item doesn't exist, null is returned.
* (Prior to 0096, die() would be called, killing the applet)
* <P>
* The filename passed in can be:
* <UL>
* <LI>A URL, for instance openStream("http://processing.org/");
* <LI>A file in the sketch's data folder
* <LI>Another file opened locally
* <LI>Another file to be opened locally
* </UL>
*/
public InputStream openStream(String filename) {
InputStream stream = null;
// by default, data files are exported to the root path of the jar.
// (not the data folder) so check there first.
// the slash as a prefix means that it'll load from the root of
// the jar, rather than trying to dig into the package location
stream = getClass().getResourceAsStream("/" + filename);
//stream = getClass().getResourceAsStream(filename);
if (stream != null) return stream;
try {
URL url = new URL(filename);
stream = url.openStream();
@@ -3223,7 +3240,8 @@ public class PApplet extends Applet
if (!filenameActual.equals(filenameShort)) {
throw new RuntimeException("This file is named " +
filenameActual + " not " +
filename + ".");
filename + ". Re-name it " +
"or change your code.");
}
} catch (IOException e) { }
}
@@ -3239,31 +3257,24 @@ public class PApplet extends Applet
}
try {
// by default, data files are exported to the root path of the jar.
// (not the data folder) so check there first.
stream = getClass().getResourceAsStream(filename);
if (stream != null) return stream;
// hm, check the data subfolder
stream = getClass().getResourceAsStream(dataPath(filename));
if (stream != null) return stream;
//stream = getClass().getResourceAsStream("data/" + filename);
//if (stream != null) return stream;
// attempt to load from a local file, used when running as
// an application, or as a signed applet
try { // first try to catch any security exceptions
try {
File file = new File(path, filename);
stream = new FileInputStream(file);
if (stream != null) return stream;
} catch (Exception e) { } // ignored
try {
//stream = new FileInputStream(new File("data", filename));
stream = new FileInputStream(dataPath(filename));
if (stream != null) return stream;
} catch (IOException e2) { }
try {
File file = new File(path, filename);
stream = new FileInputStream(file);
if (stream != null) return stream;
} catch (Exception e) { } // ignored
try {
stream = new FileInputStream(filename);
if (stream != null) return stream;
@@ -3271,11 +3282,12 @@ public class PApplet extends Applet
} catch (SecurityException se) { } // online, whups
if (stream == null) {
throw new IOException("openStream() could not open " + filename);
}
//if (stream == null) {
//throw new IOException("openStream() could not open " + filename);
//}
} catch (Exception e) {
die(e.getMessage(), e);
//die(e.getMessage(), e);
e.printStackTrace();
}
return null; // #$(*@ compiler
}
@@ -3480,6 +3492,9 @@ public class PApplet extends Applet
* Return a full path to an item in the data folder.
*/
public String dataPath(String where) {
if (path == null) {
return "data" + File.separator + where;
}
return path + File.separator + "data" + File.separator + where;
}
@@ -5358,9 +5373,9 @@ v PApplet.this.stop();
* the default is to center on the main screen.
*
* --present put the applet into full screen presentation
* mode. requires java 1.4.
* mode. requires java 1.4 or later.
*
* --bgcolor=#xxxxxx background color of the window
* --bgcolor=#xxxxxx background color of the window.
*
* --sketch-path location of where to save files from functions
* like saveStrings() or saveFrame(). defaults to
core/PImage.java
+1 -1
View File
@@ -1990,7 +1990,7 @@ public class PImage implements PConstants, Cloneable {
* Save this image to disk. This method will save to the "current"
* folder, which when running inside the PDE will be the location
* of the Processing application, not the sketch folder. To save
* inside the sketch folder, use the variable savePath from PApplet,
* inside the sketch folder, use the function savePath from PApplet,
* or use saveFrame() instead.
*/
public void save(String filename) {
core/done.txt
+4
View File
@@ -1,3 +1,7 @@
0095 core
X undo the fix that causes the width/height to be properly set
0094 core
X fix bug that was causing font sizes not to be set on opengl
X http://dev.processing.org/bugs/show_bug.cgi?id=174
core/todo.txt
+50 -41
View File
@@ -1,5 +1,7 @@
0095 core
X undo the fix that causes the width/height to be properly set
0096 core
X set applet.path to user.dir if init() is reached and it's not set
_ "not available in P3D" should read "OPENGL" in opengl lib
_ width, height set to zero in static mode
_ probably only set when resize() is called, and it's not happening
@@ -376,8 +378,29 @@ _ http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bu
_ ellipses are just plain ugly
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1073409011;start=0
_ toxi ellipses don't adapt properly with transformations
_ more blend() modes (the five listed on the thread below?)
_ http://dev.processing.org/bugs/show_bug.cgi?id=132
_ figure out what the modes should actually be:
_ photoshop: normal, dissolve; darken, multiply, color burn,
_ linear burn; lighten, screen, color dodge, linear
_ dodge; overlay, soft light, hard light, vivid light,
_ linear light, pin light, hard mix; difference,
_ exclusion; hue, saturation, color, luminosity
_ illustrator: normal; darken, multiply, color burn; lighten,
_ screen, color dodge; overlay, soft light, hard light;
_ difference, exclusion; hue, sat, color, luminosity
_ director: Copy, Transparent, Reverse, Ghost, Not copy,
_ Not transparent, Not reverse, Not ghost, Matte, Mask;
_ (below seems more useful:
_ Blend, Add pin, Add, Subtract pin, Background transparent,
_ Lightest, Subtract, Darkest, Lighten, Darken
_ flash:
_ DIFFERENCE: C = abs(A-B);
_ MULTIPLY: C = (A * B ) / 255
_ SCREEN: C= 255 - ( (255-A) * (255-B) / 255 )
_ OVERLAY: C = B < 128 ? (2*A*B/255) : 255-2*(255-A)*(255-B)/255
_ HARD_LIGHT: C = A < 128 ? (2*A*B/255) : 255-2*(255-A)*(255-B)/255
_ SOFT_LIGHT: C = B < 128 ? 2*((A>>1)+64)*B/255 : 255-(2*(255-((A>>1)+64))*(255-B)/255)
_ clipping planes
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1058491568;start=0
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1052313604;start=0
@@ -464,65 +487,42 @@ _ http://dev.processing.org/bugs/show_bug.cgi?id=103
CORE / PImage
_ access logs are being spammed because openStream() gets a 404
_ the default should be to check the .jar file
_ image no load halts the program (rather than returning null)
_ note in the reference: png images work with java 1.3+
_ http://processing.org/discourse/yabb_beta/YaBB.cgi?board=WebsiteBugs;action=display;num=1125968697
_ http://java.sun.com/j2se/1.3/docs/guide/2d/new_features.html
_ loadImage() seems to be caching everything from the jar
_ http://java.sun.com/developer/technicalArticles/Media/imagestrategies/index.html
_ make a note of how to disable this
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Programs;action=display;num=1078795681
_ bizarre image loading error with c_Rollover.zip
_ image loading bug is huge
_ figure out how to handle cached images, multiple images
_ write a simple example for threaded image loading "load several"
_ include it as part of the javadoc
_ MediaTracker blocking is prolly making jar download really slow
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1089914280
_ also threaded images
_ don't grab pixels of java2d images unless asked
_ this is the difference between a lot of loadPixels() and not
_ so important to have it in before beta if that's the change
_ also when drawing an image, sense whether drawn rotated
_ specifically, if drawn rotated 90 in either direction, or 180
_ if just rotate/translate, then can use SCREEN_SPACE for fonts
_ dynamically load code for png and others on loadImage/saveFrame?
_ how to load external encoders/decoders
_ updated png encoder
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Syntax;action=display;num=1083792994
_ should image i/o and sound i/o be moved into PImage and PSound?
_ how to load external encoders/decoders
_ more image file i/o.. more advanced in newer java
_ http://dev.processing.org/bugs/show_bug.cgi?id=165
_ http://java.sun.com/products/java-media/jai/index.jsp
_ http://processing.org/discourse/yabb_beta/YaBB.cgi?board=Programs;action=display;num=1120174647
_ read uncompressed tiff, read uncompressed tga files.
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_Software;action=display;num=1081190619
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Tools;action=display;num=1066742994
_ loadImage() seems to be caching everything from the jar
_ make a note of how to disable this
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Programs;action=display;num=1078795681#8
_ get loadImage() to work properly with data folder
_ should probably use the code from loadStream
_ and the url stuff should be an alternate method altogether
_ alpha not set on saveFrame, so can't be used in photoshop as a layer
_ http://processing.org/discourse/yabb/YaBB.cgi?board=general;action=display;num=1078441623
_ expose function to write tiff header in PImage (advanced)
_ helps with writing enormous images
_ loadImage must be used inside or after setup
_ either document this and/or provide a better error message
_ http://processing.org/discourse/yabb/YaBB.cgi?board=Programs;action=display;num=1060879468
_ more blend() modes (the five listed on the thread below?)
_ http://dev.processing.org/bugs/show_bug.cgi?id=132
_ figure out what the modes should actually be:
_ photoshop: normal, dissolve; darken, multiply, color burn,
_ linear burn; lighten, screen, color dodge, linear
_ dodge; overlay, soft light, hard light, vivid light,
_ linear light, pin light, hard mix; difference,
_ exclusion; hue, saturation, color, luminosity
_ illustrator: normal; darken, multiply, color burn; lighten,
_ screen, color dodge; overlay, soft light, hard light;
_ difference, exclusion; hue, sat, color, luminosity
_ director: Copy, Transparent, Reverse, Ghost, Not copy,
_ Not transparent, Not reverse, Not ghost, Matte, Mask;
_ (below seems more useful:
_ Blend, Add pin, Add, Subtract pin, Background transparent,
_ Lightest, Subtract, Darkest, Lighten, Darken
_ flash:
_ DIFFERENCE: C = abs(A-B);
_ MULTIPLY: C = (A * B ) / 255
_ SCREEN: C= 255 - ( (255-A) * (255-B) / 255 )
_ OVERLAY: C = B < 128 ? (2*A*B/255) : 255-2*(255-A)*(255-B)/255
_ HARD_LIGHT: C = A < 128 ? (2*A*B/255) : 255-2*(255-A)*(255-B)/255
_ SOFT_LIGHT: C = B < 128 ? 2*((A>>1)+64)*B/255 : 255-(2*(255-((A>>1)+64))*(255-B)/255)
_ figure out why tiff images won't open with after effects
_ http://dev.processing.org/bugs/show_bug.cgi?id=153
_ open with photoshop, resave, see which tags change
@@ -531,6 +531,15 @@ _ perhaps something gets corrected?
_ loadImage() using spaces in the name
_ if loadImage() with spaces when online(), throw an error
_ don't grab pixels of java2d images unless asked
_ this is the difference between a lot of loadPixels() and not
_ so important to have it in before beta if that's the change
_ also when drawing an image, sense whether drawn rotated
_ specifically, if drawn rotated 90 in either direction, or 180
_ if just rotate/translate, then can use SCREEN_SPACE for fonts
_ alpha not set on saveFrame, so can't be used in photoshop as a layer
_ http://processing.org/discourse/yabb/YaBB.cgi?board=general;action=display;num=1078441623
CORE / PSound