/usr/share/psychtoolbox-3/PsychAlphaBlending/Contents.m is in psychtoolbox-3-common 3.0.11.20131230.dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | % Psychtoolbox:PsychAlphaBlending
%
% help Psychtoolbox % For an overview, triple-click me & hit enter.
% help PsychDemos % For demos, triple-click me & hit enter.
%
% AlphaBlend - Simulate Alpha blending
% AlphaDestinationTerm - Find destination surface term of alpha sum
% AlphaSourceTerm - Find source surface term of alpha sum
% AlphaSum - Sum destination, source alpha terms and clamp
% AlphaTimes - Mulitply alpha factor by image matrix.
% GL_DST_ALPHA - Blending factor for Screen('BlendingFunction')
% GL_DST_COLOR - Blending factor for Screen('BlendingFunction')
% GL_ONE_MINUS_DST_ALPHA - Blending factor for Screen('BlendingFunction')
% GL_ONE_MINUS_DST_COLOR - Blending factor for Screen('BlendingFunction')
% GL_ONE_MINUS_SRC_ALPHA - Blending factor for Screen('BlendingFunction')
% GL_ONE_MINUS_SRC_COLOR - Blending factor for Screen('BlendingFunction')
% GL_ONE - Blending factor for Screen('BlendingFunction')
% GL_SRC_ALPHA_SATURATE - Blending factor for Screen('BlendingFunction')
% GL_SRC_ALPHA - Blending factor for Screen('BlendingFunction')
% GL_SRC_COLOR - Blending factor for Screen('BlendingFunction')
% GL_ZERO - Blending factor for Screen('BlendingFunction')
% MaskImageIn - Set image matrix alpha plane to include content
% MaskImageOut - Set image matrix alpha plane to exclude content
% SetDestinationAlpha - Place destination alpha layer into an image matrix
% SetImageAlpha - Set image matrix alpha plane to a scalar
% SetSourceAlpha - Place source alpha layer into an image matrix
|