Wim Taymans
362785df88
videomixer: optimize blend code some more
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Use more efficient formula that uses less multiplies.
Reduce the amount of scalar code, use MMX to calculate the desired
alpha value.
Unroll and handle 2 pixels in one iteration for improved pairing.
2009-12-25 12:38:45 +01:00
Wim Taymans
4f9ded7742
videomixer: scale and clamp
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Scale and clamp to the max alpha values.
2009-12-24 22:59:09 +01:00
Sebastian Dröge
3ac6f5e48b
videomixer: Fix assembly compilation on x86
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Fixes bug #604814 .
2009-12-17 18:14:55 +01:00
Sebastian Dröge
0a0f7ecc16
videomixer: Use movzbl instead of movzxb for moving one byte to a l register
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For some reason latest gcc/binutils accept movzxb here while
movzbl would be correct and is the only thing accepted by older
gcc/binutils.
Fixes bug #604679 .
2009-12-16 10:50:32 +01:00
Sebastian Dröge
9e45038d8d
videomixer: src/dest are input and output of the AYUV blending MMX assembler
2009-12-16 06:59:01 +01:00
Sebastian Dröge
061ededa36
videomixer: Add MMX implementations of the AYUV blending and color filling functions
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This provides a 20% speedup for blending and 100% for color filling.
The blending can probably be optimized even more.
2009-12-15 12:30:21 +01:00
Sebastian Dröge
6f51dfba95
videomixer: Remove wrong comments, copied from the I420 blend function
2009-12-10 10:48:49 +01:00
Sebastian Dröge
4ccd9c92ae
videomixer: Remove the calculate_frame_size() function and use libgstvideo instead
2009-07-10 17:23:03 +02:00
Sebastian Dröge
356972740a
videomixer: Make checker pattern lookup table constant
2009-07-08 18:19:45 +02:00
Sebastian Dröge
83fc39ccff
videomixer: Some cleanup and fix the calculation of the frame size in bytes
2009-05-28 13:54:14 +02:00
Alex Ugarte
82abbeaf4f
videomixer: Add support for blending BGRA and AYUV
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Fixes bug #577017 .
2009-05-28 12:55:16 +02:00
