Kacper Kasper
97bd6fe8d4
* Use agg::comp_op classes to blend pixels. * Subpixel path not implemented. * Needed by WebKit. * Implements #10274. Change-Id: I07b0002196fd0a05fc100bd9f6d703c33cadc85b Reviewed-on: https://review.haiku-os.org/c/haiku/+/2932 Reviewed-by: X512 <[email protected]> Reviewed-by: Adrien Destugues <[email protected]>
468 lines
20 KiB
C++
468 lines
20 KiB
C++
#include <Application.h>
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#include <Bitmap.h>
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#include <View.h>
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#include <Window.h>
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#include <stdio.h>
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#include <string.h>
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//#define DUMP_BLENDING_RESULTS
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#ifdef DUMP_BLENDING_RESULTS
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#include <BitmapStream.h>
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#include <File.h>
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#include <TranslatorRoster.h>
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#include <String.h>
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#endif
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uint32 kBitmapBits[] = {
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00111111,
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0x00777777, 0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00111111,
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0x00777777, 0x00444444, 0x00000000, 0x00000000, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00000000, 0x00000000, 0x00bb0000, 0x00ffffff, 0x00000000,
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0x00444444, 0x00777777, 0x00111111, 0x00000000, 0x00000000, 0x00000000,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00000000, 0x00bb0000, 0x00ee0000, 0x00ee0000,
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0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00111111, 0x00000000, 0x00000000,
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0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00bb0000, 0x00ee0000,
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0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00ee0000, 0x00ee0000,
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0x00000000, 0x00000000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00bb0000,
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0x00ee0000, 0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00ee0000,
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0x00ee0000, 0x00cc0000, 0x00000000, 0x00000000, 0x00000000, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
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0x00bb0000, 0x00ee0000, 0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000,
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0x00ee0000, 0x00ee0000, 0x00cc0000, 0x00990000, 0x00990000, 0x00000000,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00ee0000, 0x00ffffff,
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0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000, 0x00bb0000,
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0x00880000, 0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00ee0000,
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0x00ffffff, 0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000,
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0x00bb0000, 0x00880000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000,
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0x00ee0000, 0x00ffffff, 0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000,
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0x00990000, 0x00bb0000, 0x00880000, 0x00990000, 0x00000000, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ee0000,
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0x00ee0000, 0x00ee0000, 0x00ffffff, 0x00ee0000, 0x00ff0000, 0x00cc0000,
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0x00cc0000, 0x00990000, 0x00bb0000, 0x00880000, 0x00990000, 0x00000000,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00000000, 0x00ee0000, 0x00ff0000, 0x00ffffff, 0x00ee0000, 0x00ee0000,
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0x00ee0000, 0x00cc0000, 0x00990000, 0x00bb0000, 0x00880000, 0x00880000,
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0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00ffffff, 0x00ee0000,
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0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000, 0x00bb0000, 0x00880000,
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0x00990000, 0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00ee0000, 0x00ffffff,
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0x00ee0000, 0x00ff0000, 0x00cc0000, 0x00cc0000, 0x00990000, 0x00bb0000,
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0x00880000, 0x00000000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ff6666,
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0x00ff6666, 0x00ff6666, 0x00ff6666, 0x00880000, 0x00000000, 0x00ee0000,
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0x00ff6666, 0x00000000, 0x00ee0000, 0x00ee0000, 0x00bb0000, 0x00bb0000,
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0x00bb0000, 0x00880000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
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0x00ee0000, 0x00ff0000, 0x00ee0000, 0x00880000, 0x00990000, 0x00000000,
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0x00ee0000, 0x00ff6666, 0x00880000, 0x00000000, 0x00cc0000, 0x00990000,
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0x00bb0000, 0x00880000, 0x00990000, 0x00000000, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00000000, 0x00ee0000, 0x00ff0000, 0x00ee0000, 0x00880000, 0x00990000,
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0x00000000, 0x00ee0000, 0x00ff6666, 0x00880000, 0x00000000, 0x00990000,
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0x00880000, 0x00880000, 0x00990000, 0x00000000, 0x00000000, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000, 0x00ff6666, 0x00880000, 0x00000000,
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0x00990000, 0x00880000, 0x00880000, 0x00000000, 0x00000000, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00000000, 0x00444444, 0x00ff6666, 0x00880000,
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0x00000000, 0x00990000, 0x00880000, 0x00880000, 0x00000000, 0x00ee0000,
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0x00000000, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ff6666,
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0x00880000, 0x00000000, 0x00000000, 0x00000000, 0x00990000, 0x00000000,
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0x00880000, 0x00ee0000, 0x00000000, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00000000,
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0x00ff9900, 0x00000000, 0x00000000, 0x00000000, 0x00444444, 0x00000000,
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0x00000000, 0x00880000, 0x00990000, 0x00ee0000, 0x00000000, 0x00777477,
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0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
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0x00ff9900, 0x00ff9900, 0x00ffff00, 0x00ffff00, 0x00ffff00, 0x00000000,
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0x00444444, 0x00000000, 0x00000000, 0x00880000, 0x00ff0000, 0x00ee0000,
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0x00000000, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477,
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0x00000000, 0x00ff9900, 0x00ff9900, 0x00ffff00, 0x00ffff00, 0x00ffff00,
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0x00ff9900, 0x00000000, 0x00000000, 0x00777477, 0x00000000, 0x00ee0000,
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0x00ff0000, 0x00880000, 0x00000000, 0x00777477, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00000000, 0x00ff9900, 0x00ff9900, 0x00ffff00,
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0x00ffff00, 0x00ff9900, 0x00000000, 0x00777777, 0x00777777, 0x00777777,
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0x00000000, 0x00ee0000, 0x00990000, 0x00000000, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00ff9900, 0x00ff9900,
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0x00ffff00, 0x00ff9900, 0x00ff9900, 0x00ff9900, 0x00000000, 0x00777777,
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0x00777777, 0x00777777, 0x00000000, 0x00880000, 0x00000000, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000,
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0x00ff9900, 0x00ffff00, 0x00ff9900, 0x00ff9900, 0x00ff9900, 0x00000000,
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0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00000000, 0x00000000,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00000000, 0x00ff9900, 0x00ffff00, 0x00ff9900, 0x00ff9900, 0x00000000,
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0x00000000, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00000000, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00000000, 0x00ffff00, 0x00ff9900, 0x00000000,
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0x00000000, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00000000, 0x00000000,
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0x00000000, 0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777777, 0x00777477,
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0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777, 0x00777777,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777, 0x00777777,
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0x00777777, 0x00777777, 0x00777777, 0x00777477, 0x00777477, 0x00777477,
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0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777777, 0x00777777,
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0x00777777, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
|
|
0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477, 0x00777477,
|
|
0x00777477, 0x00777477, 0x00777477, 0x00777477
|
|
};
|
|
|
|
class DrawingModeView : public BView {
|
|
public:
|
|
DrawingModeView(BRect frame);
|
|
virtual ~DrawingModeView();
|
|
|
|
virtual void Draw(BRect updateRect);
|
|
|
|
private:
|
|
BBitmap * fBitmap;
|
|
BBitmap * fTriangleLeft;
|
|
BBitmap * fTriangleRight;
|
|
};
|
|
|
|
|
|
class DrawingModeWindow : public BWindow {
|
|
public:
|
|
DrawingModeWindow(BRect frame);
|
|
|
|
private:
|
|
DrawingModeView * fView;
|
|
};
|
|
|
|
|
|
class DrawingModeApp : public BApplication {
|
|
public:
|
|
DrawingModeApp();
|
|
|
|
private:
|
|
DrawingModeWindow * fWindow;
|
|
};
|
|
|
|
|
|
DrawingModeApp::DrawingModeApp()
|
|
: BApplication("application/x.vnd-Haiku.DrawingModeTest")
|
|
{
|
|
fWindow = new DrawingModeWindow(BRect(200, 200, 760, 800));
|
|
fWindow->Show();
|
|
}
|
|
|
|
|
|
DrawingModeWindow::DrawingModeWindow(BRect frame)
|
|
: BWindow(frame, "Drawing Modes Test", B_TITLED_WINDOW,
|
|
B_QUIT_ON_WINDOW_CLOSE)
|
|
{
|
|
fView = new DrawingModeView(frame.OffsetToSelf(0, 0));
|
|
AddChild(fView);
|
|
fView->SetViewColor(255, 203, 0);
|
|
fView->SetDrawingMode(B_OP_OVER);
|
|
}
|
|
|
|
|
|
DrawingModeView::DrawingModeView(BRect frame)
|
|
: BView(frame, "DrawingModeView", B_FOLLOW_ALL, B_WILL_DRAW),
|
|
fBitmap(NULL)
|
|
{
|
|
fBitmap = new BBitmap(BRect(0, 0, 31, 31), B_RGB32);
|
|
memcpy(fBitmap->Bits(), kBitmapBits, fBitmap->BitsLength());
|
|
|
|
uint32 triangleLeftBits[32 * 32] = { 0 };
|
|
uint32 triangleRightBits[32 * 32] = { 0 };
|
|
for(int y = 0; y < 32; ++y) {
|
|
for(int x = 0; x < 32; ++x) {
|
|
if(x < 32 - y) {
|
|
triangleLeftBits[y * 32 + x] = 0xffff0000;
|
|
}
|
|
if(x >= y) {
|
|
triangleRightBits[y * 32 + x] = 0xff0000ff;
|
|
}
|
|
}
|
|
}
|
|
|
|
fTriangleLeft = new BBitmap(BRect(0, 0, 31, 31), B_RGBA32);
|
|
memcpy(fTriangleLeft->Bits(), triangleLeftBits,
|
|
fTriangleLeft->BitsLength());
|
|
fTriangleRight = new BBitmap(BRect(0, 0, 31, 31), B_RGBA32);
|
|
memcpy(fTriangleRight->Bits(), triangleRightBits,
|
|
fTriangleRight->BitsLength());
|
|
}
|
|
|
|
|
|
DrawingModeView::~DrawingModeView()
|
|
{
|
|
delete fBitmap;
|
|
delete fTriangleLeft;
|
|
delete fTriangleRight;
|
|
}
|
|
|
|
|
|
void
|
|
DrawingModeView::Draw(BRect updateRect)
|
|
{
|
|
SetDrawingMode(B_OP_COPY);
|
|
SetLowColor(ViewColor());
|
|
FillRect(Bounds(), B_SOLID_LOW);
|
|
|
|
SetLowColor(255, 0, 0);
|
|
SetHighColor(0, 0, 255);
|
|
|
|
BRect bitmapBounds = fBitmap->Bounds();
|
|
int32 imageHeight = bitmapBounds.IntegerHeight() + 10;
|
|
int32 imageWidth = bitmapBounds.IntegerWidth() + 10;
|
|
BRect triangleBounds = fTriangleLeft->Bounds();
|
|
int32 triangleHeight = triangleBounds.IntegerHeight() + 10;
|
|
int32 triangleWidth = triangleBounds.IntegerWidth() + 10;
|
|
|
|
#define MODE(m) { m, #m }
|
|
|
|
struct {
|
|
drawing_mode mode;
|
|
const char *name;
|
|
} drawingModes[] = {
|
|
MODE(B_OP_COPY),
|
|
MODE(B_OP_OVER),
|
|
MODE(B_OP_ERASE),
|
|
MODE(B_OP_INVERT),
|
|
MODE(B_OP_SELECT),
|
|
MODE(B_OP_ADD),
|
|
MODE(B_OP_SUBTRACT),
|
|
MODE(B_OP_BLEND),
|
|
MODE(B_OP_MIN),
|
|
MODE(B_OP_MAX)
|
|
};
|
|
|
|
struct {
|
|
alpha_function mode;
|
|
const char *name;
|
|
} blendingModes[] = {
|
|
MODE(B_ALPHA_COMPOSITE_SOURCE_OVER),
|
|
MODE(B_ALPHA_COMPOSITE_SOURCE_IN),
|
|
MODE(B_ALPHA_COMPOSITE_SOURCE_OUT),
|
|
MODE(B_ALPHA_COMPOSITE_SOURCE_ATOP),
|
|
MODE(B_ALPHA_COMPOSITE_DESTINATION_OVER),
|
|
MODE(B_ALPHA_COMPOSITE_DESTINATION_IN),
|
|
MODE(B_ALPHA_COMPOSITE_DESTINATION_OUT),
|
|
MODE(B_ALPHA_COMPOSITE_DESTINATION_ATOP),
|
|
MODE(B_ALPHA_COMPOSITE_XOR),
|
|
MODE(B_ALPHA_COMPOSITE_CLEAR),
|
|
MODE(B_ALPHA_COMPOSITE_DIFFERENCE),
|
|
MODE(B_ALPHA_COMPOSITE_LIGHTEN),
|
|
MODE(B_ALPHA_COMPOSITE_DARKEN)
|
|
};
|
|
|
|
int32 modeCount = sizeof(drawingModes) / sizeof(drawingModes[0]);
|
|
for (int32 i = 0; i < modeCount; i++) {
|
|
if (drawingModes[i].mode == B_OP_SELECT) {
|
|
// make the background contain the low and high color to see
|
|
// actual effect of B_OP_SELECT
|
|
SetDrawingMode(B_OP_COPY);
|
|
FillRect(BRect(0, imageHeight * i, imageWidth * 2 - 10,
|
|
imageHeight * i + bitmapBounds.Height() / 2), B_SOLID_LOW);
|
|
FillRect(BRect(0, imageHeight * i + bitmapBounds.Height() / 2,
|
|
imageWidth * 2 - 10, imageHeight * i + bitmapBounds.Height()),
|
|
B_SOLID_HIGH);
|
|
} else if (drawingModes[i].mode == B_OP_MAX
|
|
|| drawingModes[i].mode == B_OP_MIN) {
|
|
// need a darker/lighter color as a background otherwise nothing
|
|
// will be selected from the source
|
|
SetDrawingMode(B_OP_COPY);
|
|
SetHighColor(255, 255, 255);
|
|
FillRect(BRect(0, imageHeight * i, imageWidth * 2 - 10,
|
|
imageHeight * i + bitmapBounds.Height() / 3), B_SOLID_HIGH);
|
|
SetHighColor(128, 128, 128);
|
|
FillRect(BRect(0, imageHeight * i + bitmapBounds.Height() / 3,
|
|
imageWidth * 2 - 10, imageHeight * i + bitmapBounds.Height()),
|
|
B_SOLID_HIGH);
|
|
SetHighColor(0, 0, 0);
|
|
FillRect(BRect(0, imageHeight * i + bitmapBounds.Height() / 3 * 2,
|
|
imageWidth * 2 - 10, imageHeight * i + bitmapBounds.Height()),
|
|
B_SOLID_HIGH);
|
|
SetHighColor(0, 0, 255);
|
|
}
|
|
|
|
SetDrawingMode(drawingModes[i].mode);
|
|
DrawBitmap(fBitmap, BPoint(0, imageHeight * i));
|
|
FillRect(bitmapBounds.OffsetToCopy(imageWidth,
|
|
imageHeight * i), B_MIXED_COLORS);
|
|
|
|
SetDrawingMode(B_OP_OVER);
|
|
DrawString(drawingModes[i].name, BPoint(imageWidth * 2,
|
|
imageHeight * i + 20));
|
|
}
|
|
|
|
#ifdef DUMP_BLENDING_RESULTS
|
|
BTranslatorRoster* roster = BTranslatorRoster::Default();
|
|
if (roster == NULL)
|
|
abort();
|
|
|
|
translator_id* outId;
|
|
int32 outCount;
|
|
translation_format pngFormat;
|
|
roster->GetAllTranslators(&outId, &outCount);
|
|
for(int32 i = 0; i < outCount; ++i) {
|
|
const translation_format* formats;
|
|
int32 formatCount;
|
|
roster->GetOutputFormats(outId[i], &formats, &formatCount);
|
|
for(int32 j = 0; j < formatCount; ++j) {
|
|
if(strcmp(formats[j].MIME, "image/png") == 0) {
|
|
pngFormat = formats[j];
|
|
}
|
|
}
|
|
}
|
|
|
|
status_t r = B_OK;
|
|
{
|
|
BFile file("DESTINATION.png",
|
|
B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
|
|
BBitmapStream stream(fTriangleLeft);
|
|
r = roster->Translate(&stream, NULL, NULL, &file, pngFormat.type);
|
|
if(r != B_OK)
|
|
fprintf(stderr, "Failed to save PNG file for destination\n");
|
|
stream.DetachBitmap(&fTriangleLeft);
|
|
}
|
|
{
|
|
BFile file("SOURCE.png", B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
|
|
BBitmapStream stream(fTriangleRight);
|
|
r = roster->Translate(&stream, NULL, NULL, &file, pngFormat.type);
|
|
if(r != B_OK)
|
|
fprintf(stderr, "Failed to save PNG file for source\n");
|
|
stream.DetachBitmap(&fTriangleRight);
|
|
}
|
|
#endif
|
|
|
|
modeCount = sizeof(blendingModes) / sizeof(blendingModes[0]);
|
|
const int columnOffset = 180;
|
|
BView *blitter = new BView(BRect(0, 0, 31, 31),
|
|
"blitter", B_FOLLOW_ALL, B_WILL_DRAW);
|
|
BBitmap *resultBitmap = new BBitmap(BRect(0, 0, 31, 31),
|
|
B_RGBA32, true, false);
|
|
resultBitmap->AddChild(blitter);
|
|
for (int32 i = 0; i < modeCount; i++) {
|
|
resultBitmap->Lock();
|
|
blitter->SetDrawingMode(B_OP_COPY);
|
|
blitter->SetHighColor(0, 0, 0, 0);
|
|
blitter->FillRect(resultBitmap->Bounds());
|
|
blitter->DrawBitmap(fTriangleLeft, B_ORIGIN);
|
|
blitter->SetDrawingMode(B_OP_ALPHA);
|
|
blitter->SetBlendingMode(B_PIXEL_ALPHA, blendingModes[i].mode);
|
|
blitter->DrawBitmap(fTriangleRight, B_ORIGIN);
|
|
resultBitmap->Unlock();
|
|
|
|
#ifdef DUMP_BLENDING_RESULTS
|
|
BBitmapStream stream(resultBitmap);
|
|
BString fileName(blendingModes[i].name);
|
|
BFile file(fileName.Append(".png"),
|
|
B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
|
|
|
|
r = roster->Translate(&stream, NULL, NULL, &file, pngFormat.type);
|
|
if(r != B_OK) {
|
|
fprintf(stderr, "Failed to save PNG file for %s\n",
|
|
blendingModes[i].name);
|
|
}
|
|
|
|
stream.DetachBitmap(&resultBitmap);
|
|
#endif
|
|
|
|
SetDrawingMode(B_OP_ALPHA);
|
|
SetBlendingMode(B_PIXEL_ALPHA, B_ALPHA_OVERLAY);
|
|
DrawBitmap(resultBitmap, BPoint(columnOffset, triangleHeight * i));
|
|
|
|
SetDrawingMode(B_OP_OVER);
|
|
DrawString(blendingModes[i].name, BPoint(columnOffset + triangleWidth,
|
|
triangleHeight * i + 20));
|
|
}
|
|
resultBitmap->Lock();
|
|
resultBitmap->RemoveChild(blitter);
|
|
delete resultBitmap;
|
|
delete blitter;
|
|
}
|
|
|
|
|
|
int
|
|
main(int argc, const char *argv[])
|
|
{
|
|
DrawingModeApp *app = new DrawingModeApp();
|
|
app->Run();
|
|
delete app;
|
|
return 0;
|
|
}
|