A8L8 support

[castano]

A8L8 support

[GoogleCodeExporter]

Rather than adding native support for A8L8, I'll add full support for arbitrary 
RGBA
pixel formats. These will be specified with the 
CompressionOptions::setPixelFormat
method. In addition to that, I'll also add support for arbitrary swizzles of the
input data, using some sort of HLSL notation. I hope that will fit your needs.

Original comment by [email protected] on 15 May 2007 at 8:44

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

Original comment by [email protected] on 29 May 2007 at 9:52

• Changed state: Accepted

[GoogleCodeExporter]

Original comment by [email protected] on 29 May 2007 at 9:52

[GoogleCodeExporter]

Full support for RGBA pixel formats is already there, but the input swizzle is 
not
implemented yet.

Original comment by [email protected] on 16 Nov 2007 at 11:27

• Changed state: Started

[GoogleCodeExporter]

Rather than swizzles, I'll add arbitrary color transformations. Swizzles can be
implemented with simple linear transforms, and those allow extra flexibility, 
for
example, if you want to create a luminance alpha texture, you would do:

inputOptions.setColorTransform(ColorTransform_Linear);
inputOptions.setLinearTransform(0, 0.333f, 0.333f, 0.333f, 0.0f);
inputOptions.setLinearTransform(1, 0.0f, 0.0f, 0.0f, 1.0f);
inputOptions.setLinearTransform(2, 0.0f, 0.0f, 0.0f, 0.0f);
inputOptions.setLinearTransform(3, 0.0f, 0.0f, 0.0f, 0.0f);

Original comment by [email protected] on 16 Nov 2007 at 11:58

[GoogleCodeExporter]

Original comment by [email protected] on 28 Nov 2007 at 3:17

• Added labels: Milestone-Release1.0

[GoogleCodeExporter]

postponed to 2.1

Original comment by [email protected] on 4 Feb 2008 at 11:23

• Added labels: Milestone-Release2.1
• Removed labels: Milestone-Release1.0

[GoogleCodeExporter]

Just copying a suggestion by Ignacio for how to perform swizzles:

inputOptions.setColorTransform(ColorTransform_Swizzle);
inputOptions.setSwizzleTransform(2, 1, 0, 3);   // .zyxw

Original comment by [email protected] on 14 Feb 2008 at 12:18

[GoogleCodeExporter]

Linear color transforms and swizzles are now supported in trunk! This feature 
will be
part of the next minor release (2.1.0).

Original comment by [email protected] on 6 May 2008 at 11:21

• Changed state: Fixed