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28 commits

Author SHA1 Message Date
Pavel Krajcevski 40b479487c Add accessors for image dimensions 2013-08-31 17:05:26 -04:00
Pavel Krajcevski 36641c2268 Don't set all of the memory to zero when we specify an image without any pixels 2013-08-31 16:43:32 -04:00
Pavel Krajcevski 992c72e4b5 Fix asserts 2013-08-31 16:40:49 -04:00
Pavel Krajcevski fa37aba768 Add comparison operator for pixels 2013-08-31 16:37:58 -04:00
Pavel Krajcevski 8bf682f04e Add comment for RGBA packing 2013-08-31 16:37:40 -04:00
Pavel Krajcevski b3a07e21f7 Add assignment operator 2013-08-31 16:37:07 -04:00
Pavel Krajcevski 26005bfd27 Disambiguate the Image.h from PVRTCEncoder and Core 2013-08-31 16:36:10 -04:00
Pavel Krajcevski 21199bc264 Add Pixel tests 2013-08-31 16:06:00 -04:00
Pavel Krajcevski 8c2127c08a When packing ARGB pixels make sure to convert them to 8-bit depth first 2013-08-31 16:05:50 -04:00
Pavel Krajcevski 1ffbdea2b8 Make sure to handle 0 bit depth a bit more gracefully 2013-08-31 16:05:28 -04:00
Pavel Krajcevski 9a0fbebac3 Fix bug when going from smaller to higher bit depth 2013-08-31 16:04:58 -04:00
Pavel Krajcevski ad17404bf7 Begin counting the bits from the beginning of the byte stream. The way I was doing it before was silly... 2013-08-31 14:33:44 -04:00
Pavel Krajcevski f280c2bb33 Fix some compiler warnings. 2013-08-31 13:30:12 -04:00
Pavel Krajcevski 53a8c8e3cd Fix bug where the defaulted value caused a crash (wtf?) 2013-08-30 19:08:53 -04:00
Pavel Krajcevski 012d9e3ce0 Add preliminary tests for PVRTC pixels 2013-08-30 19:08:20 -04:00
Pavel Krajcevski ab0dbbfa6e Bugfix 
The bug was that bitIdx was not being taken into account when we realized that there was enough pixel depth to stay within the current byte when reading pixel values.
 2013-08-30 18:45:14 -04:00
Pavel Krajcevski 1cc8f57538 Add block tests 2013-08-30 18:44:50 -04:00
Pavel Krajcevski 90662a56cd First pass at PVRTC Decompressor 2013-08-29 18:35:15 -04:00
Pavel Krajcevski c59deae728 Add accessors for the color channels and a method for packing the information into a 32 bit RGBA int 2013-08-29 18:34:53 -04:00
Pavel Krajcevski f822c15868 Pixel depth defaults to 8 2013-08-29 18:34:25 -04:00
Pavel Krajcevski 73f4992081 If we want a color channel with zero depth then it should default to full intensity, but we will remember that there is zero depth there. 2013-08-29 18:33:56 -04:00
Pavel Krajcevski b3d7cd7877 Constify a few things 2013-08-29 18:32:48 -04:00
Pavel Krajcevski 40743d612b Add a logical definition of an image for PVRTC 2013-08-29 18:31:42 -04:00
Pavel Krajcevski d3daed8969 Add block definitions for PVRTC 2013-08-29 12:08:32 -04:00
Pavel Krajcevski 55a61b5d8d constify some method declarations 2013-08-29 11:57:46 -04:00
Pavel Krajcevski c5fb5ba0b1 Reorder color channels to match PVRTC spec 2013-08-29 11:57:18 -04:00
Pavel Krajcevski 53e7879742 Add PVRTC Pixel class 
This class accepts a pixels with up to 8-bit components. With the way PVRTC is laid out, there are many different bit modes that we could run into. This lets us change between any that we'd like to deal with.
 2013-08-28 17:52:45 -04:00
Pavel Krajcevski 5c80b4f373 Initial files for PVRTC encoder. Starting with a decompressor. 2013-08-27 18:25:15 -04:00