331 lines
6.8 KiB
ArmAsm
331 lines
6.8 KiB
ArmAsm
/*
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* Copyright © 2008 Mozilla Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Mozilla Corporation not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Mozilla Corporation makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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* Author: Jeff Muizelaar (jeff@infidigm.net)
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*
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*/
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/* Prevent the stack from becoming executable */
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack,"",%progbits
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#endif
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.text
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.arch armv6
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.object_arch armv4
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.arm
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.altmacro
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/* Supplementary macro for setting function attributes */
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.macro pixman_asm_function fname
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.func fname
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.global fname
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#ifdef __ELF__
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.hidden fname
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.type fname, %function
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#endif
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fname:
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.endm
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/*
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* The code below was generated by gcc 4.3.4 from the commented out
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* functions in 'pixman-arm-simd.c' file with the following optimization
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* options: "-O3 -mcpu=arm1136jf-s -fomit-frame-pointer"
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*
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* TODO: replace gcc generated code with hand tuned versions because
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* the code quality is not very good, introduce symbolic register
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* aliases for better readability and maintainability.
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*/
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pixman_asm_function pixman_composite_add_8_8_asm_armv6
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push {r4, r5, r6, r7, r8, r9, r10, r11}
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mov r10, r1
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sub sp, sp, #4
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subs r10, r10, #1
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mov r11, r0
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mov r8, r2
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str r3, [sp]
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ldr r7, [sp, #36]
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bcc 0f
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6: cmp r11, #0
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beq 1f
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orr r3, r8, r7
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tst r3, #3
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beq 2f
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mov r1, r8
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mov r0, r7
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mov r12, r11
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b 3f
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5: tst r3, #3
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beq 4f
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3: ldrb r2, [r0], #1
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subs r12, r12, #1
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ldrb r3, [r1]
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uqadd8 r3, r2, r3
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strb r3, [r1], #1
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orr r3, r1, r0
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bne 5b
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1: ldr r3, [sp]
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add r8, r8, r3
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ldr r3, [sp, #40]
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add r7, r7, r3
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10: subs r10, r10, #1
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bcs 6b
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0: add sp, sp, #4
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pop {r4, r5, r6, r7, r8, r9, r10, r11}
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bx lr
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2: mov r12, r11
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mov r1, r8
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mov r0, r7
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4: cmp r12, #3
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subgt r6, r12, #4
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movgt r9, r12
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lsrgt r5, r6, #2
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addgt r3, r5, #1
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movgt r12, #0
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lslgt r4, r3, #2
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ble 7f
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8: ldr r3, [r0, r12]
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ldr r2, [r1, r12]
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uqadd8 r3, r3, r2
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str r3, [r1, r12]
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add r12, r12, #4
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cmp r12, r4
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bne 8b
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sub r3, r9, #4
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bic r3, r3, #3
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add r3, r3, #4
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subs r12, r6, r5, lsl #2
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add r1, r1, r3
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add r0, r0, r3
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beq 1b
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7: mov r4, #0
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9: ldrb r3, [r1, r4]
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ldrb r2, [r0, r4]
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uqadd8 r3, r2, r3
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strb r3, [r1, r4]
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add r4, r4, #1
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cmp r4, r12
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bne 9b
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ldr r3, [sp]
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add r8, r8, r3
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ldr r3, [sp, #40]
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add r7, r7, r3
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b 10b
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.endfunc
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pixman_asm_function pixman_composite_over_8888_8888_asm_armv6
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push {r4, r5, r6, r7, r8, r9, r10, r11}
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sub sp, sp, #20
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cmp r1, #0
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mov r12, r2
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str r1, [sp, #12]
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str r0, [sp, #16]
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ldr r2, [sp, #52]
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beq 0f
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lsl r3, r3, #2
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str r3, [sp]
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ldr r3, [sp, #56]
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mov r10, #0
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lsl r3, r3, #2
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str r3, [sp, #8]
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mov r11, r3
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b 1f
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6: ldr r11, [sp, #8]
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1: ldr r9, [sp]
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mov r0, r12
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add r12, r12, r9
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mov r1, r2
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str r12, [sp, #4]
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add r2, r2, r11
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ldr r12, [sp, #16]
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ldr r3, =0x00800080
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ldr r9, =0xff00ff00
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mov r11, #255
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cmp r12, #0
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beq 4f
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5: ldr r5, [r1], #4
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ldr r4, [r0]
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sub r8, r11, r5, lsr #24
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uxtb16 r6, r4
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uxtb16 r7, r4, ror #8
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mla r6, r6, r8, r3
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mla r7, r7, r8, r3
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uxtab16 r6, r6, r6, ror #8
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uxtab16 r7, r7, r7, ror #8
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and r7, r7, r9
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uxtab16 r6, r7, r6, ror #8
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uqadd8 r5, r6, r5
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str r5, [r0], #4
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subs r12, r12, #1
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bne 5b
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4: ldr r3, [sp, #12]
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add r10, r10, #1
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cmp r10, r3
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ldr r12, [sp, #4]
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bne 6b
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0: add sp, sp, #20
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pop {r4, r5, r6, r7, r8, r9, r10, r11}
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bx lr
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.endfunc
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pixman_asm_function pixman_composite_over_8888_n_8888_asm_armv6
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push {r4, r5, r6, r7, r8, r9, r10, r11}
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sub sp, sp, #28
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cmp r1, #0
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str r1, [sp, #12]
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ldrb r1, [sp, #71]
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mov r12, r2
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str r0, [sp, #16]
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ldr r2, [sp, #60]
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str r1, [sp, #24]
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beq 0f
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lsl r3, r3, #2
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str r3, [sp, #20]
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ldr r3, [sp, #64]
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mov r10, #0
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lsl r3, r3, #2
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str r3, [sp, #8]
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mov r11, r3
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b 1f
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5: ldr r11, [sp, #8]
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1: ldr r4, [sp, #20]
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mov r0, r12
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mov r1, r2
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add r12, r12, r4
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add r2, r2, r11
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str r12, [sp]
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str r2, [sp, #4]
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ldr r12, [sp, #16]
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ldr r2, =0x00800080
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ldr r3, [sp, #24]
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mov r11, #255
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cmp r12, #0
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beq 3f
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4: ldr r5, [r1], #4
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ldr r4, [r0]
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uxtb16 r6, r5
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uxtb16 r7, r5, ror #8
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mla r6, r6, r3, r2
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mla r7, r7, r3, r2
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uxtab16 r6, r6, r6, ror #8
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uxtab16 r7, r7, r7, ror #8
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uxtb16 r6, r6, ror #8
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uxtb16 r7, r7, ror #8
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orr r5, r6, r7, lsl #8
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uxtb16 r6, r4
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uxtb16 r7, r4, ror #8
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sub r8, r11, r5, lsr #24
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mla r6, r6, r8, r2
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mla r7, r7, r8, r2
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uxtab16 r6, r6, r6, ror #8
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uxtab16 r7, r7, r7, ror #8
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uxtb16 r6, r6, ror #8
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uxtb16 r7, r7, ror #8
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orr r6, r6, r7, lsl #8
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uqadd8 r5, r6, r5
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str r5, [r0], #4
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subs r12, r12, #1
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bne 4b
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3: ldr r1, [sp, #12]
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add r10, r10, #1
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cmp r10, r1
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ldr r12, [sp]
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ldr r2, [sp, #4]
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bne 5b
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0: add sp, sp, #28
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pop {r4, r5, r6, r7, r8, r9, r10, r11}
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bx lr
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.endfunc
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pixman_asm_function pixman_composite_over_n_8_8888_asm_armv6
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push {r4, r5, r6, r7, r8, r9, r10, r11}
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sub sp, sp, #28
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cmp r1, #0
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ldr r9, [sp, #60]
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str r1, [sp, #12]
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bic r1, r9, #-16777216
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str r1, [sp, #20]
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mov r12, r2
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lsr r1, r9, #8
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ldr r2, [sp, #20]
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bic r1, r1, #-16777216
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bic r2, r2, #65280
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bic r1, r1, #65280
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str r2, [sp, #20]
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str r0, [sp, #16]
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str r1, [sp, #4]
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ldr r2, [sp, #68]
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beq 0f
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lsl r3, r3, #2
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str r3, [sp, #24]
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mov r0, #0
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b 1f
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5: ldr r3, [sp, #24]
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1: ldr r4, [sp, #72]
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mov r10, r12
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mov r1, r2
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add r12, r12, r3
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add r2, r2, r4
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str r12, [sp, #8]
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str r2, [sp]
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ldr r12, [sp, #16]
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ldr r11, =0x00800080
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ldr r2, [sp, #4]
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ldr r3, [sp, #20]
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cmp r12, #0
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beq 3f
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4: ldrb r5, [r1], #1
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ldr r4, [r10]
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mla r6, r3, r5, r11
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mla r7, r2, r5, r11
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uxtab16 r6, r6, r6, ror #8
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uxtab16 r7, r7, r7, ror #8
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uxtb16 r6, r6, ror #8
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uxtb16 r7, r7, ror #8
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orr r5, r6, r7, lsl #8
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uxtb16 r6, r4
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uxtb16 r7, r4, ror #8
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mvn r8, r5
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lsr r8, r8, #24
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mla r6, r6, r8, r11
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mla r7, r7, r8, r11
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uxtab16 r6, r6, r6, ror #8
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uxtab16 r7, r7, r7, ror #8
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uxtb16 r6, r6, ror #8
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uxtb16 r7, r7, ror #8
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orr r6, r6, r7, lsl #8
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uqadd8 r5, r6, r5
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str r5, [r10], #4
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subs r12, r12, #1
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bne 4b
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3: ldr r4, [sp, #12]
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add r0, r0, #1
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cmp r0, r4
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ldr r12, [sp, #8]
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ldr r2, [sp]
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bne 5b
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0: add sp, sp, #28
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pop {r4, r5, r6, r7, r8, r9, r10, r11}
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bx lr
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.endfunc
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