source: ImageMagick/trunk/coders/png.c @ 4797

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Diff Rev Age Author Log Message
(edit) @4797   23 months cristy
(edit) @4794   23 months glennrp Fix out-of-date comment about -define PNG:compression-strategy, etc.
(edit) @4781   23 months cristy
(edit) @4752   23 months cristy
(edit) @4744   23 months cristy
(edit) @4728   23 months cristy
(edit) @4722   23 months glennrp Folded long lines in coders/png.c
(edit) @4687   23 months cristy
(edit) @4686   23 months glennrp Accept defined compression-filter=6,7,8,9 to be consistent with -quality …
(edit) @4680   23 months glennrp Avoid using Z_RLE and Z_FIXED with old zlib versions that don't support …
(edit) @4669   23 months glennrp Added PNG:compression_level, _strategy, and _filter defines. They take …
(edit) @4659   23 months glennrp Handle "-quality 97" properly; Added support for Z_RLE strategy in png …
(edit) @4658   23 months glennrp spelling (original)
(edit) @4655   2 years glennrp Fixed Q32 handling of 16-bit transparent grayscale PNG input.
(edit) @4654   2 years glennrp Changed "RedPixelPacketComponent?" to "PacketRed?", etc., in coders/png.c
(edit) @4649   2 years cristy
(edit) @4609   2 years glennrp Fix bKGD color scaling in sub-8-bit grayscale PNG output.
(edit) @4608   2 years glennrp Sometimes black would be written in the PNG tRNS chunk when some other …
(edit) @4597   2 years glennrp #ifdef out unused macros
(edit) @4555   2 years cristy
(edit) @4554   2 years cristy
(edit) @4534   2 years cristy
(edit) @4524   2 years cristy
(edit) @4512   2 years glennrp Eliminated some direct references to pixel components.
(edit) @4478   2 years cristy
(edit) @4475   2 years glennrp The PNG encoder now respects "-depth 1|2|4" settings.
(edit) @4459   2 years cristy
(edit) @4441   2 years glennrp Removed some "#if 0" blocks in coders/png.c
(edit) @4429   2 years glennrp Revised PNG8 reduction to work with a special case that reduces to 256 …
(edit) @4398   2 years glennrp Fixed some cut-and-paste errors in new PNG8 reduction code.
(edit) @4368   2 years glennrp Squash some warnings about signed-unsigned comparisons in png.c
(edit) @4367   2 years glennrp Added some needed parentheses in the PNG8 encoder.
(edit) @4363   2 years glennrp Change more r->red to GetRedPixelComponent?() in png.c
(edit) @4361   2 years cristy
(edit) @4353   2 years glennrp Revised new Get/SetRGB macros so all have the same parameters "pixel, …
(edit) @4352   2 years glennrp Added convenience macros for copying RGB or RGBO pixel to/from PixelPacket?
(edit) @4351   2 years glennrp folded a long line
(edit) @4344   2 years glennrp Write proper grayscale value in bKGD chunk when writing a grayscale PNG.
(edit) @4334   2 years glennrp Removed redundant typecasts.
(edit) @4333   2 years glennrp Fix instances of IsColorEqual?() in coders/png.c
(edit) @4332   2 years glennrp Changed more q->* to Get/Set?*PixelComponent?(q)
(edit) @4331   2 years glennrp Changed some q->* to Get*PixelComponent?(q)
(edit) @4325   2 years cristy
(edit) @4294   2 years glennrp Changed some direct access of pixel components to Get*PixelComponent?() …
(edit) @4293   2 years glennrp Backed out part of the last update (decoding grayscale PNGs)
(edit) @4292   2 years glennrp Simplified LosslessReduceDepthOK in coders/png.c
(edit) @4291   2 years glennrp Backed out today's updates to coders/png.c
(edit) @4286   2 years glennrp Folded new long lines in png.c
(edit) @4284   2 years cristy
(edit) @4280   2 years glennrp Simplify grayscale reading
(edit) @4279   2 years glennrp Simplified decoding grayscale PNG images.
(edit) @4278   2 years glennrp Simplified PNG8 reductions using IM scaling functions instead of …
(edit) @4276   2 years glennrp More updates to png.c in support of Q64 builds.
(edit) @4273   2 years glennrp Simplified the PNG encoder's LosslessReduceDepthOK() function.
(edit) @4271   2 years glennrp Decode the bKGD chunk properly with Q32 and Q64 builds.
(edit) @4270   2 years glennrp Make PNG encoder's LosslessReduce? function work with Q32, Q64 builds.
(edit) @4269   2 years glennrp Make PNG encoders's ok_to_reduce function work with Q32, Q64 builds.
(edit) @4266   2 years glennrp Initialize unused part of PNG colormap to zeroes
(edit) @4243   2 years glennrp Added -define PNG:preserve-colormap option to coders/png.c
(edit) @4242   2 years glennrp Add some "To do" comments in coders/png.c
(edit) @4241   2 years glennrp Throw exception if CloneImage? fails in PNG encoder.
(edit) @4240   2 years glennrp Added "exclude-chunk=date" option to suppress date:create and date:modify …
(edit) @4223   2 years glennrp added "#define PNG_PTR_NORETURN" to png.c to prevent png_longjmp() …
(edit) @4222   2 years cristy
(edit) @4204   2 years cristy
(edit) @4193   2 years glennrp Remove bogus image->colormap that is passed in to the PNG encoder with a …
(edit) @4168   2 years glennrp Make the png encoder treat incoming image depth as 8 if it is less than 8.
(edit) @4133   2 years cristy
(edit) @4132   2 years glennrp Combined width and height into one PNG property
(edit) @4131   2 years glennrp Added PNG:vpAg width, height property.
(edit) @4129   2 years glennrp The PNG decoder sometimes set images with more than 256 different …
(edit) @4124   2 years glennrp Reformat PNG:text property
(edit) @4123   2 years glennrp Reformat PNG chunk properties
(edit) @4122   2 years glennrp Put sRGB, gAMA, pHYs, and oFFs data in properties.
(edit) @4121   2 years glennrp Store ancillary chunk data for use by identify
(edit) @4120   2 years glennrp Store PNG IHDR data as properties
(edit) @4108   2 years cristy
(edit) @4105   2 years cristy
(edit) @3959   2 years glennrp Updated comments about PNG8 reductions in coders/png.c
(edit) @3948   2 years glennrp Force PNG decoder to return image->matte=MagickTrue? when the PNG has …
(edit) @3935   2 years glennrp Preserve colors better using 4-4-4 palette when possible when reducing to …
(edit) @3934   2 years glennrp Use 50% threshold, try 3-3-3 palette, collapse all transparent colors to …
(edit) @3920   2 years glennrp Force the PNG encoder to write an all-opaque alpha channel with "-define …
(edit) @3918   2 years glennrp Re-enabled writing grayscale PNG with bit depth 2 or 4.
(edit) @3884   2 years glennrp
(edit) @3883   2 years glennrp
(edit) @3882   2 years glennrp set quantum->info=ping_bit_depth when writing low bit-depth grayscale PNGs …
(edit) @3872   2 years glennrp
(edit) @3845   2 years glennrp The "-define PNG:exclude-chunk=bKGD" was also excluding other text chunks.
(edit) @3844   2 years glennrp Don't store background color in the colormap if there are already 256 …
(edit) @3818   2 years glennrp Ifdef out currently unused "depth_4_ok" and "depth_2_ok" variable …
(edit) @3817   2 years cristy
(edit) @3816   2 years glennrp Also skip text:density chunk found in a PNG datastream by the PNG decoder, …
(edit) @3815   2 years glennrp Do write a text:density chunk if the pHYs chunk is excluded.
(edit) @3814   2 years glennrp Don't write a text:density chunk in a PNG output file.
(edit) @3810   2 years glennrp Fixed two other instances of throwing exception to image instead if …
(edit) @3808   2 years glennrp Throw exception into the correct image structure (IMimage) when the PNG …
(edit) @3806   2 years glennrp Folded long lines in coders/png.c
(edit) @3797   2 years cristy
(edit) @3763   2 years glennrp Delay opening a blob until the PNG encoder is ready to write the IHDR …
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