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info on 4x4 coeffs 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4405 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2002-01-29 08:32:35 +00:00
parent 5045d3ae56
commit 752f3e8a3d
1 changed files with 28 additions and 2 deletions
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30
vidix/drivers/radeon.h
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@ -628,20 +628,46 @@
#define OV0_P3_X_START_END 0x049C
#define OV0_FILTER_CNTL 0x04A0
# define FILTER_PROGRAMMABLE_COEF 0x00000000
# define FILTER_HARD_SCALE_HORZ_Y 0x00000001
# define FILTER_HARD_SCALE_HORZ_UV 0x00000002
# define FILTER_HARD_SCALE_VERT_Y 0x00000004
# define FILTER_HARD_SCALE_VERT_UV 0x00000008
# define FILTER_HARDCODED_COEF 0x0000000F
# define FILTER_COEF_MASK 0x0000000F
/* other values allow us use hardcoded coefs for Y and
programmable for UV that's nosense. */
/* When bit is set hard coded coefficients are used. */
/*
Top quality 4x4-tap filtered vertical and horizontal scaler.
It allows up to 64:1 upscaling and downscaling without
performance or quality degradation.
*/
#define OV0_FOUR_TAP_COEF_0 0x04B0
# define OV0_FOUR_TAP_PHASE_0_TAP_0 0x0000000F
# define OV0_FOUR_TAP_PHASE_0_TAP_1 0x00007F00
# define OV0_FOUR_TAP_PHASE_0_TAP_2 0x007F0000
# define OV0_FOUR_TAP_PHASE_0_TAP_3 0x0F000000
#define OV0_FOUR_TAP_COEF_1 0x04B4
# define OV0_FOUR_TAP_PHASE_1_5_TAP_0 0x0000000F
# define OV0_FOUR_TAP_PHASE_1_5_TAP_1 0x00007F00
# define OV0_FOUR_TAP_PHASE_1_5_TAP_2 0x007F0000
# define OV0_FOUR_TAP_PHASE_1_5_TAP_3 0x0F000000
#define OV0_FOUR_TAP_COEF_2 0x04B8
# define OV0_FOUR_TAP_PHASE_2_6_TAP_0 0x0000000F
# define OV0_FOUR_TAP_PHASE_2_6_TAP_1 0x00007F00
# define OV0_FOUR_TAP_PHASE_2_6_TAP_2 0x007F0000
# define OV0_FOUR_TAP_PHASE_2_6_TAP_3 0x0F000000
#define OV0_FOUR_TAP_COEF_3 0x04BC
# define OV0_FOUR_TAP_PHASE_3_7_TAP_0 0x0000000F
# define OV0_FOUR_TAP_PHASE_3_7_TAP_1 0x00007F00
# define OV0_FOUR_TAP_PHASE_3_7_TAP_2 0x007F0000
# define OV0_FOUR_TAP_PHASE_3_7_TAP_3 0x0F000000
#define OV0_FOUR_TAP_COEF_4 0x04C0
# define OV0_FOUR_TAP_PHASE_4_TAP_0 0x0000000F
# define OV0_FOUR_TAP_PHASE_4_TAP_1 0x00007F00
# define OV0_FOUR_TAP_PHASE_4_TAP_2 0x007F0000
# define OV0_FOUR_TAP_PHASE_4_TAP_3 0x0F000000
/* 0th_tap means that the left most of top most pixel in a set of four will
be multiplied by this coefficient. */
#define OV0_FLAG_CNTL 0x04DC
#ifdef RAGE128