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scope grabbableIntPixels. static Bool #succeeded; sbool #enable = true; static GrabbableIntPixels grabbableIntPixels(BufferedImage img) { if (img == null || !enable) null; try { var result = grabbableIntPixels_impl(img); succeeded = result != null; ret result; } on fail { succeeded = false; } } static GrabbableIntPixels grabbableIntPixels_impl(BufferedImage img) { Raster raster = img.getRaster(); SampleModel _sampleModel = raster.getSampleModel(); if (!_sampleModel instanceof SinglePixelPackedSampleModel) null; SinglePixelPackedSampleModel sampleModel = cast _sampleModel; DataBufferInt dataBuffer = cast raster.getDataBuffer(); assertEquals(1, dataBuffer.getNumBanks()); assertEquals(DataBuffer.TYPE_INT, dataBuffer.getDataType()); // Let's at this point assume the raster data is what we // think it is... (TODO: test on unusual platforms) int w = img.getWidth(), h = img.getHeight(); int scanlineStride = sampleModel.getScanlineStride(); int[] pixels = dataBuffer.getData(); int offset = dataBuffer.getOffset(); int translateX = raster.getSampleModelTranslateX(); int translateY = raster.getSampleModelTranslateY(); offset += -translateX-translateY*scanlineStride; ret GrabbableIntPixels(pixels, w, h, offset, scanlineStride); }
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Snippet ID: | #1030544 |
Snippet name: | grabbableIntPixels - try to rip RGB int[] pixels from a BufferedImage without copying |
Eternal ID of this version: | #1030544/10 |
Text MD5: | 6403ba4eb59084aa4951892c72e191e9 |
Transpilation MD5: | 019c1c5816b3725b701cdbe448f0eebd |
Author: | stefan |
Category: | javax / imaging |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2021-09-08 02:26:56 |
Source code size: | 1338 bytes / 37 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 231 / 335 |
Version history: | 9 change(s) |
Referenced in: | [show references] |