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videomixer: Fix argb/rgba overlay orc code

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Remove some redundant operations (convubw) and use the correct variable,
t2, in the orc_overlay_bgra function.
This commit is contained in:
Robert Swain 2011-04-15 15:36:41 +02:00 committed by Tim-Philipp Müller
parent fd6ac6aa8a
commit e757793b21
1 changed files with 2 additions and 4 deletions
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6
gst/videomixer/blendorc.orc
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@ -132,7 +132,6 @@ x4 subw alpha_s_inv, alpha_s_inv, alpha_s
loadl t, d
convlw tw, t
convwb tb, tw
convubw tw, tb
splatbl a, tb
x4 convubw alpha_d, a
x4 mullw alpha_d, alpha_d, alpha_s_inv
@ -179,7 +178,7 @@ storel d, t
# calc source alpha as alpha_s = alpha_s * alpha / 256
loadl t, s
shrul t2, t, 24
convlw tw, t
convlw tw, t2
convwb tb, tw
splatbl a, tb
x4 convubw alpha_s, a
@ -194,9 +193,8 @@ x4 convubw alpha_s_inv, a
x4 subw alpha_s_inv, alpha_s_inv, alpha_s
loadl t, d
shrul t2, t, 24
convlw tw, t
convlw tw, t2
convwb tb, tw
convubw tw, tb
splatbl a, tb
x4 convubw alpha_d, a
x4 mullw alpha_d, alpha_d, alpha_s_inv