On Fri, Apr 09, 2010 at 05:03:55PM +0800, Paul Jowett wrote: > Does anyone know where I can get details about the parameters that > MPlayer passes to Fragment Programs? For example: Sorry, no I never documented it, help documenting it is welcome. > 1) the texture[] arrays don't appear to have any definition > anywhere. The ARB FRAGMENT Spec (link below) has a very brief > definition in a comment in an example script at the end of the spec, > but it's not enough info. The texture[] array reference the textures bound to the texture units. See e.g the MultiTexCoord OpenGL function. > 2) what does "TEX" command actually do? It doesn't seem to map to > any set of OpenGL commands. That is documented in the spec you mentioned above, e.g. in section 3.11.4 > 3) where is the information from a customtex file made available in > the Fragment Program? I expected texture[0] or perhaps > fragment.textcoord[0] but example fragments like "edgedetect.fp" use > both these arrays and don't get passed a customtex file. No, texture[0], texture[1] and texture[2] are already in use for the video data (Y, U and V component respectively), the custom texture is in texture[3].
