Re: wined3d: Implented signed texture formats via NV_TEXTURE_SHADER

[Frank Richter]

On 10.03.2007 15:02, Fabian Bieler wrote:
> +static const PixelFormatDesc NV_texture_shader_formats[] = {
> - {WINED3DFMT_V8U8        ,0x0        ,0x0        ,0x0        ,0x0        ,2      ,FALSE      ,GL_SIGNED_HILO8_NV     ,GL_HILO_NV         ,GL_BYTE                        },

Are you sure this is right? From the NV_texture_shader spec it looks to
me like HILO is for high-precision data, and that DSDT (described as
offset data) would be more appropriate for V8U8.

-f.r.

wined3d: Implented signed texture formats via NV_TEXTURE_SHADER

[Fabian Bieler]

On Saturday 10 March 2007 23:20, Frank Richter wrote:
> On 10.03.2007 15:02, Fabian Bieler wrote:
> > +static const PixelFormatDesc NV_texture_shader_formats[] = {
> > - {WINED3DFMT_V8U8        ,0x0        ,0x0        ,0x0        ,0x0    
> > ,2      ,FALSE      ,GL_SIGNED_HILO8_NV     ,GL_HILO_NV
> >
> > ,GL_BYTE                        },
>
> Are you sure this is right? From the NV_texture_shader spec it looks to
> me like HILO is for high-precision data, and that DSDT (described as
> offset data) would be more appropriate for V8U8.

You're probably right about that. While I can't see a visual difference 
between using HILO8 and DSDT in hl2 with dx81 (which uses V8U8), I'll resend 
a modified patch.