The Tor Browser / file comparison
comparison: gfx/cairo/libpixman/src/make-combine.pl
gfx/cairo/libpixman/src/make-combine.pl
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:66343d1291cd |
|---|---|
| 1 $usage = "Usage: combine.pl { 8 | 16 } < pixman-combine.c.template"; | |
| 2 | |
| 3 $#ARGV == 0 or die $usage; | |
| 4 | |
| 5 # Get the component size. | |
| 6 $size = int($ARGV[0]); | |
| 7 $size == 8 or $size == 16 or die $usage; | |
| 8 | |
| 9 $pixel_size = $size * 4; | |
| 10 $half_pixel_size = $size * 2; | |
| 11 | |
| 12 sub mask { | |
| 13 my $str = shift; | |
| 14 my $suffix; | |
| 15 $suffix = "ULL" if $size > 8; | |
| 16 | |
| 17 return "0x" . $str . $suffix; | |
| 18 } | |
| 19 | |
| 20 # Generate mask strings. | |
| 21 $nibbles = $size / 4; | |
| 22 $mask = "f" x $nibbles; | |
| 23 $zero_mask = "0" x $nibbles; | |
| 24 $one_half = "8" . "0" x ($nibbles - 1); | |
| 25 | |
| 26 print "/* WARNING: This file is generated by combine.pl from combine.inc.\n"; | |
| 27 print " Please edit one of those files rather than this one. */\n"; | |
| 28 print "\n"; | |
| 29 | |
| 30 print "#line 1 \"pixman-combine.c.template\"\n"; | |
| 31 | |
| 32 $mask_ = mask($mask); | |
| 33 $one_half_ = mask($one_half); | |
| 34 $g_mask = mask($mask . $zero_mask); | |
| 35 $b_mask = mask($mask . $zero_mask x 2); | |
| 36 $a_mask = mask($mask . $zero_mask x 3); | |
| 37 $rb_mask = mask($mask . $zero_mask . $mask); | |
| 38 $ag_mask = mask($mask . $zero_mask . $mask . $zero_mask); | |
| 39 $rb_one_half = mask($one_half . $zero_mask . $one_half); | |
| 40 $rb_mask_plus_one = mask("1" . $zero_mask x 2 . "1" . $zero_mask); | |
| 41 | |
| 42 while (<STDIN>) { | |
| 43 # Mask and 1/2 value for a single component. | |
| 44 s/#define COMPONENT_SIZE\b/$& $size/; | |
| 45 s/#define MASK\b/$& $mask_/; | |
| 46 s/#define ONE_HALF\b/$& $one_half_/; | |
| 47 | |
| 48 # Shifts and masks for green, blue, and alpha. | |
| 49 s/#define G_SHIFT\b/$& $size/; | |
| 50 s/#define R_SHIFT\b/$& $size * 2/; | |
| 51 s/#define A_SHIFT\b/$& $size * 3/; | |
| 52 s/#define G_MASK\b/$& $g_mask/; | |
| 53 s/#define R_MASK\b/$& $b_mask/; | |
| 54 s/#define A_MASK\b/$& $a_mask/; | |
| 55 | |
| 56 # Special values for dealing with red + blue at the same time. | |
| 57 s/#define RB_MASK\b/$& $rb_mask/; | |
| 58 s/#define AG_MASK\b/$& $ag_mask/; | |
| 59 s/#define RB_ONE_HALF\b/$& $rb_one_half/; | |
| 60 s/#define RB_MASK_PLUS_ONE\b/$& $rb_mask_plus_one/; | |
| 61 | |
| 62 # Add 32/64 suffix to combining function types. | |
| 63 s/\bCombineFunc\b/CombineFunc$pixel_size/; | |
| 64 s/\bFbComposeFunctions\b/FbComposeFunctions$pixel_size/; | |
| 65 s/combine_width/combine_$pixel_size/; | |
| 66 s/_pixman_setup_combiner_functions_width/_pixman_setup_combiner_functions_$pixel_size/; | |
| 67 s/UNc/UN$size/g; | |
| 68 s/ALPHA_c/ALPHA_$size/g; | |
| 69 s/RED_c/RED_$size/g; | |
| 70 s/GREEN_c/GREEN_$size/g; | |
| 71 s/BLUE_c/BLUE_$size/g; | |
| 72 | |
| 73 # Convert comp*_t values into the appropriate real types. | |
| 74 s/comp1_t/uint${size}_t/g; | |
| 75 s/comp2_t/uint${half_pixel_size}_t/g; | |
| 76 s/comp4_t/uint${pixel_size}_t/g; | |
| 77 | |
| 78 # Change the function table name for the 64-bit version. | |
| 79 s/pixman_composeFunctions/pixman_composeFunctions64/ if $size == 16; | |
| 80 | |
| 81 # Change the header for the 64-bit version | |
| 82 s/pixman-combine.h/pixman-combine64.h/ if $size == 16; | |
| 83 s/pixman-combine.h/pixman-combine32.h/ if $size == 8; | |
| 84 | |
| 85 print; | |
| 86 } |
