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    Contents of /trunk/libsdl/patches/libsdl-1.2.9-PIC-load-mmx-masks-from-stack.patch

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    Revision 144 - (show annotations) (download)
    Tue May 8 20:06:05 2007 UTC (17 years ago) by niro
    File size: 3901 byte(s) 
    -import
    1 --- src/hermes/mmxp2_32.asm
    2 +++ src/hermes/mmxp2_32.asm
    3 @@ -27,22 +27,37 @@ GLOBAL _ConvertMMXpII32_16BGR565
    4 GLOBAL _ConvertMMXpII32_16RGB555
    5 GLOBAL _ConvertMMXpII32_16BGR555
    6
    7 -SECTION .data
    8 -
    9 -ALIGN 8
    10 -
    11 -;; Constants for conversion routines
    12 -
    13 -mmx32_rgb888_mask dd 00ffffffh,00ffffffh
    14 -
    15 -mmx32_rgb565_b dd 000000f8h, 000000f8h
    16 -mmx32_rgb565_g dd 0000fc00h, 0000fc00h
    17 -mmx32_rgb565_r dd 00f80000h, 00f80000h
    18 -
    19 -mmx32_rgb555_rb dd 00f800f8h,00f800f8h
    20 -mmx32_rgb555_g dd 0000f800h,0000f800h
    21 -mmx32_rgb555_mul dd 20000008h,20000008h
    22 -mmx32_bgr555_mul dd 00082000h,00082000h
    23 +
    24 +;; Macros for conversion routines
    25 +
    26 +%macro _push_immq_mask 1
    27 + push dword %1
    28 + push dword %1
    29 +%endmacro
    30 +
    31 +%macro load_immq 2
    32 + _push_immq_mask %2
    33 + movq %1, [esp]
    34 +%endmacro
    35 +
    36 +%macro pand_immq 2
    37 + _push_immq_mask %2
    38 + pand %1, [esp]
    39 +%endmacro
    40 +
    41 +%define CLEANUP_IMMQ_LOADS(num) \
    42 + add esp, byte 8 * num
    43 +
    44 +%define mmx32_rgb888_mask 00ffffffh
    45 +
    46 +%define mmx32_rgb565_b 000000f8h
    47 +%define mmx32_rgb565_g 0000fc00h
    48 +%define mmx32_rgb565_r 00f80000h
    49 +
    50 +%define mmx32_rgb555_rb 00f800f8h
    51 +%define mmx32_rgb555_g 0000f800h
    52 +%define mmx32_rgb555_mul 20000008h
    53 +%define mmx32_bgr555_mul 00082000h
    54
    55
    56
    57 @@ -53,7 +66,8 @@ SECTION .text
    58 _ConvertMMXpII32_24RGB888:
    59
    60 ; set up mm6 as the mask, mm7 as zero
    61 - movq mm6, qword [mmx32_rgb888_mask]
    62 + load_immq mm6, mmx32_rgb888_mask
    63 + CLEANUP_IMMQ_LOADS(1)
    64 pxor mm7, mm7
    65
    66 mov edx, ecx ; save ecx
    67 @@ -108,9 +122,10 @@ _ConvertMMXpII32_24RGB888:
    68 _ConvertMMXpII32_16RGB565:
    69
    70 ; set up masks
    71 - movq mm5, [mmx32_rgb565_b]
    72 - movq mm6, [mmx32_rgb565_g]
    73 - movq mm7, [mmx32_rgb565_r]
    74 + load_immq mm5, mmx32_rgb565_b
    75 + load_immq mm6, mmx32_rgb565_g
    76 + load_immq mm7, mmx32_rgb565_r
    77 + CLEANUP_IMMQ_LOADS(3)
    78
    79 mov edx, ecx
    80 shr ecx, 2
    81 @@ -176,9 +191,10 @@ _ConvertMMXpII32_16RGB565:
    82
    83 _ConvertMMXpII32_16BGR565:
    84
    85 - movq mm5, [mmx32_rgb565_r]
    86 - movq mm6, [mmx32_rgb565_g]
    87 - movq mm7, [mmx32_rgb565_b]
    88 + load_immq mm5, mmx32_rgb565_r
    89 + load_immq mm6, mmx32_rgb565_g
    90 + load_immq mm7, mmx32_rgb565_b
    91 + CLEANUP_IMMQ_LOADS(3)
    92
    93 mov edx, ecx
    94 shr ecx, 2
    95 @@ -253,7 +269,7 @@ _ConvertMMXpII32_16BGR555:
    96 ; except it uses a different multiplier for the pmaddwd
    97 ; instruction. cool huh.
    98
    99 - movq mm7, qword [mmx32_bgr555_mul]
    100 + load_immq mm7, mmx32_bgr555_mul
    101 jmp _convert_bgr555_cheat
    102
    103 ; This is the same as the Intel version.. they obviously went to
    104 @@ -263,9 +279,10 @@ _ConvertMMXpII32_16BGR555:
    105 ; (I think) a more accurate name..
    106 _ConvertMMXpII32_16RGB555:
    107
    108 - movq mm7,qword [mmx32_rgb555_mul]
    109 + load_immq mm7, mmx32_rgb555_mul
    110 _convert_bgr555_cheat:
    111 - movq mm6,qword [mmx32_rgb555_g]
    112 + load_immq mm6, mmx32_rgb555_g
    113 + CLEANUP_IMMQ_LOADS(2)
    114
    115 mov edx,ecx ; Save ecx
    116
    117 @@ -280,12 +297,14 @@ _convert_bgr555_cheat:
    118 movq mm0,[esi]
    119 movq mm3,mm2
    120
    121 - pand mm3,qword [mmx32_rgb555_rb]
    122 + pand_immq mm3, mmx32_rgb555_rb
    123 movq mm1,mm0
    124
    125 - pand mm1,qword [mmx32_rgb555_rb]
    126 + pand_immq mm1, mmx32_rgb555_rb
    127 pmaddwd mm3,mm7
    128
    129 + CLEANUP_IMMQ_LOADS(2)
    130 +
    131 pmaddwd mm1,mm7
    132 pand mm2,mm6
    133
    134 @@ -302,13 +321,13 @@ _convert_bgr555_cheat:
    135 movq mm0,mm4
    136 psrld mm1,6
    137
    138 - pand mm0,qword [mmx32_rgb555_rb]
    139 + pand_immq mm0, mmx32_rgb555_rb
    140 packssdw mm1,mm3
    141
    142 movq mm3,mm5
    143 pmaddwd mm0,mm7
    144
    145 - pand mm3,qword [mmx32_rgb555_rb]
    146 + pand_immq mm3, mmx32_rgb555_rb
    147 pand mm4,mm6
    148
    149 movq [edi],mm1
    150 @@ -329,12 +348,14 @@ _convert_bgr555_cheat:
    151 movq mm3,mm2
    152 movq mm1,mm0
    153
    154 - pand mm3,qword [mmx32_rgb555_rb]
    155 + pand_immq mm3, mmx32_rgb555_rb
    156 packssdw mm5,mm4
    157
    158 - pand mm1,qword [mmx32_rgb555_rb]
    159 + pand_immq mm1, mmx32_rgb555_rb
    160 pand mm2,mm6
    161
    162 + CLEANUP_IMMQ_LOADS(4)
    163 +
    164 movq [edi+8],mm5
    165 pmaddwd mm3,mm7
    166