diff options
Diffstat (limited to 'pixman/pixman/pixman-arm-simd-asm.S')
| -rw-r--r-- | pixman/pixman/pixman-arm-simd-asm.S | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/pixman/pixman/pixman-arm-simd-asm.S b/pixman/pixman/pixman-arm-simd-asm.S index c20968879..dd6f78817 100644 --- a/pixman/pixman/pixman-arm-simd-asm.S +++ b/pixman/pixman/pixman-arm-simd-asm.S @@ -611,3 +611,81 @@ generate_composite_function \ /******************************************************************************/ +.macro over_reverse_n_8888_init + ldr SRC, [sp, #ARGS_STACK_OFFSET] + ldr MASK, =0x00800080 + /* Split source pixel into RB/AG parts */ + uxtb16 STRIDE_S, SRC + uxtb16 STRIDE_M, SRC, ror #8 + /* Set GE[3:0] to 0101 so SEL instructions do what we want */ + uadd8 SCRATCH, MASK, MASK + line_saved_regs STRIDE_D, ORIG_W +.endm + +.macro over_reverse_n_8888_newline + mov STRIDE_D, #0xFF +.endm + +.macro over_reverse_n_8888_process_head cond, numbytes, firstreg, unaligned_src, unaligned_mask, preload + pixld , numbytes, firstreg, DST, 0 +.endm + +.macro over_reverse_n_8888_1pixel d, is_only + teq WK&d, #0 + beq 8f /* replace with source */ + bics ORIG_W, STRIDE_D, WK&d, lsr #24 + .if is_only == 1 + beq 49f /* skip store */ + .else + beq 9f /* write same value back */ + .endif + mla SCRATCH, STRIDE_S, ORIG_W, MASK /* red/blue */ + mla ORIG_W, STRIDE_M, ORIG_W, MASK /* alpha/green */ + uxtab16 SCRATCH, SCRATCH, SCRATCH, ror #8 + uxtab16 ORIG_W, ORIG_W, ORIG_W, ror #8 + mov SCRATCH, SCRATCH, ror #8 + sel ORIG_W, SCRATCH, ORIG_W + uqadd8 WK&d, WK&d, ORIG_W + b 9f +8: mov WK&d, SRC +9: +.endm + +.macro over_reverse_n_8888_tail numbytes, reg1, reg2, reg3, reg4 + .if numbytes == 4 + over_reverse_n_8888_1pixel reg1, 1 + .else + and SCRATCH, WK®1, WK®2 + .if numbytes == 16 + and SCRATCH, SCRATCH, WK®3 + and SCRATCH, SCRATCH, WK®4 + .endif + mvns SCRATCH, SCRATCH, asr #24 + beq 49f /* skip store if all opaque */ + over_reverse_n_8888_1pixel reg1, 0 + over_reverse_n_8888_1pixel reg2, 0 + .if numbytes == 16 + over_reverse_n_8888_1pixel reg3, 0 + over_reverse_n_8888_1pixel reg4, 0 + .endif + .endif + pixst , numbytes, reg1, DST +49: +.endm + +.macro over_reverse_n_8888_process_tail cond, numbytes, firstreg + over_reverse_n_8888_tail numbytes, firstreg, %(firstreg+1), %(firstreg+2), %(firstreg+3) +.endm + +generate_composite_function \ + pixman_composite_over_reverse_n_8888_asm_armv6, 0, 0, 32 \ + FLAG_DST_READWRITE | FLAG_BRANCH_OVER | FLAG_PROCESS_CORRUPTS_PSR | FLAG_PROCESS_DOES_STORE | FLAG_SPILL_LINE_VARS | FLAG_PROCESS_CORRUPTS_SCRATCH, \ + 3, /* prefetch distance */ \ + over_reverse_n_8888_init, \ + over_reverse_n_8888_newline, \ + nop_macro, /* cleanup */ \ + over_reverse_n_8888_process_head, \ + over_reverse_n_8888_process_tail + +/******************************************************************************/ + |