Comments (1)
You're correct, 1-bit RGB does not exist in PNG and is not supported by lodepng either since it only supports the valid PNG color type / bit depth combinations.
In the unit test, the 1 there was a typo, it actually had to be 8, and the test passed by coincidence instead (since it was treating it as 16 bit in the else case and the bit pattern must have matched something valid by coincidence)
Extra error handling in the lodepng_convert and lodepng_get_raw_size functions would be redundant, the error checking for valid color type / bit depth combination already happens elsewhere in the main decoding and encoding flow
Thanks for reporting! I fixed the test to use 8, and 16, instead of the wrong 1 bits.
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Related Issues (20)
- what's mean of this define LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS and when should i define it
- code optimization
- Че за хрень 64 бит компиляция HOT 1
- Sudden increase in build size HOT 1
- Memory leaks in function benchmark.
- SEGV on unknown address in function pngdetail. HOT 2
- How to get a JSON string from the encoded image ? HOT 3
- Expected speed? HOT 6
- Fix warnings: `conversion from 'size_t' to 'unsigned short', possible loss of data` HOT 2
- chunk type is restricted to the decimal values 65 to 90 and 97 to 122
- Veracode discovered a race condition
- Consideration for changing the License to public domain
- allocate "reserved_size" extra memory
- Lodepng fails to open valid png image HOT 4
- Clarification on "filter_palette_zero"
- lodepng crashes ntdll.dll
- Encoding from RGB 24 frame buffers handling stride / pitch
- Think the custom_zlib api is incomplete. HOT 3
- lodepng::State cause Stack Corruption HOT 5
- Please add support for HDR imagery (Third Edition of PNG specification)
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