diff options
| author | Max Horn | 2009-01-23 22:05:40 +0000 |
|---|---|---|
| committer | Max Horn | 2009-01-23 22:05:40 +0000 |
| commit | 04517f17ad7752ad3273c08f230c0e4a8a245a9b (patch) | |
| tree | b6313e594305e71c462490947e5c85ea9716e057 /graphics/scaler/hq3x_i386.asm | |
| parent | a8562cf64bbb1e023680a6e113b5140590546127 (diff) | |
| download | scummvm-rg350-04517f17ad7752ad3273c08f230c0e4a8a245a9b.tar.gz scummvm-rg350-04517f17ad7752ad3273c08f230c0e4a8a245a9b.tar.bz2 scummvm-rg350-04517f17ad7752ad3273c08f230c0e4a8a245a9b.zip | |
Added some comments to hq2x/hq3x asm code
svn-id: r36024
Diffstat (limited to 'graphics/scaler/hq3x_i386.asm')
| -rw-r--r-- | graphics/scaler/hq3x_i386.asm | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/graphics/scaler/hq3x_i386.asm b/graphics/scaler/hq3x_i386.asm index 8ffb2d5aba..6a808ac6e8 100644 --- a/graphics/scaler/hq3x_i386.asm +++ b/graphics/scaler/hq3x_i386.asm @@ -124,6 +124,8 @@ SECTION .text %%fin: %endmacro +; interpolate16_2<bitFormat,3,1> +; Mix two pixels with weight 3 and 1, respectively: (c1*3+c2)/4; %macro Interp1 3 mov edx,%2 mov ecx,%3 @@ -141,6 +143,8 @@ SECTION .text mov %1,dx %endmacro +; interpolate16_3<bitFormat,2,1,1> +; Mix three pixels with weight 2, 1, and 1, respectively: (c1*2+c2+c3)/4; %macro Interp2 4 mov edx,%3 mov ecx,%4 @@ -163,6 +167,8 @@ SECTION .text mov %1,dx %endmacro +; interpolate16_2<bitFormat,7,1> +; Mix two pixels with weight 7 and 1, respectively: (c1*7+c2)/8; %macro Interp3 2 mov ecx, [_LUT16to32] movd mm1, [ecx+eax*4] @@ -182,6 +188,8 @@ SECTION .text mov %1, dx %endmacro +; interpolate16_3<bitFormat,2,7,7> +; Mix three pixels with weight 2, 7, and 7, respectively: (c1*2+(c2+c3)*7)/16; %macro Interp4 3 mov ecx, [_LUT16to32] movd mm1, [ecx+eax*4] @@ -206,6 +214,8 @@ SECTION .text mov %1, dx %endmacro +; interpolate16_2<bitFormat,1,1> +; Mix two pixels with weight 1 and 1, respectively: (c1+c2)/2; %macro Interp5 3 mov edx,%2 mov ecx,%3 |