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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s deleted file mode 100755 index 93968b6..0000000 --- a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s +++ /dev/null @@ -1,251 +0,0 @@ -; Copyright (C) 2009 The Android Open Source Project -; -; Licensed under the Apache License, Version 2.0 (the "License"); -; you may not use this file except in compliance with the License. -; You may obtain a copy of the License at -; -; http://www.apache.org/licenses/LICENSE-2.0 -; -; Unless required by applicable law or agreed to in writing, software -; distributed under the License is distributed on an "AS IS" BASIS, -; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -; See the License for the specific language governing permissions and -; limitations under the License. - -;------------------------------------------------------------------------------- -;-- -;-- Abstract : ARMv6 optimized version of h264bsdInterpolateHorHalf function -;-- -;------------------------------------------------------------------------------- - - - IF :DEF: H264DEC_WINASM - ;// We dont use REQUIRE8 and PRESERVE8 for winasm - ELSE - REQUIRE8 - PRESERVE8 - ENDIF - - AREA |.text|, CODE - -;// h264bsdInterpolateHorHalf register allocation - -ref RN 0 - -mb RN 1 -buff RN 1 - -count RN 2 -x0 RN 2 - -y0 RN 3 -x_2_0 RN 3 - -width RN 4 -x_3_1 RN 4 - -height RN 5 -x_6_4 RN 5 - -partW RN 6 -x_7_5 RN 6 - -partH RN 7 -tmp1 RN 7 - -tmp2 RN 8 - -tmp3 RN 9 - -tmp4 RN 10 - -mult_20_01 RN 11 -mult_20_m5 RN 12 - -plus16 RN 14 - - -;// function exports and imports - - IMPORT h264bsdFillBlock - - EXPORT h264bsdInterpolateHorHalf - -;// Horizontal filter approach -;// -;// Basic idea in horizontal filtering is to adjust coefficients -;// like below. Calculation is done with 16-bit maths. -;// -;// Reg x_2_0 x_3_1 x_6_4 x_7_5 x_2_0 -;// [ 2 0 ] [ 3 1 ] [ 6 4 ] [ 7 5 ] [ 10 8 ] ... -;// y_0 = 20 1 20 -5 -5 1 -;// y_1 = -5 20 1 1 20 -5 -;// y_2 = 1 -5 -5 20 1 20 -;// y_3 = 1 20 -5 -5 20 1 - - -h264bsdInterpolateHorHalf - STMFD sp!, {r0-r11, lr} - SUB sp, sp, #0x1e4 - - CMP x0, #0 - BLT do_fill ;// (x0 < 0) - LDR partW, [sp,#0x220] ;// partWidth - ADD tmp4, x0, partW ;// (x0+partWidth) - ADD tmp4, tmp4, #5 ;// (y0+partW+5) - LDR width, [sp,#0x218] ;// width - CMP tmp4, width - BHI do_fill ;// (x0+partW)>width - - CMP y0, #0 - BLT do_fill ;// (y0 < 0) - LDR partH, [sp,#0x224] ;// partHeight - ADD tmp2, y0, partH ;// (y0+partHeight) - LDR height, [sp,#0x21c] ;// height - CMP tmp2, height - BLS skip_fill ;// no overfill needed - - -do_fill - LDR partH, [sp,#0x224] ;// partHeight - LDR height, [sp,#0x21c] ;// height - LDR partW, [sp,#0x220] ;// partWidth - ADD tmp4, partW, #5 ;// tmp4 = partW + 5; - STMIB sp, {height, tmp4} ;// sp+4 = height, sp+8 = partWidth+5 - STR partH, [sp,#0xc] ;// sp+c = partHeight - STR tmp4, [sp,#0x10] ;// sp+10 = partWidth+5 - LDR width, [sp,#0x218] ;// width - STR width, [sp,#0] ;// sp+0 = width - ADD buff, sp, #0x28 ;// buff = p1[21*21/4+1] - BL h264bsdFillBlock - - MOV x0, #0 - STR x0,[sp,#0x1ec] ;// x0 = 0 - STR x0,[sp,#0x1f0] ;// y0 = 0 - ADD ref,sp,#0x28 ;// ref = p1 - STR tmp4, [sp,#0x218] ;// width = partWidth+5 - - -skip_fill - LDR x0 ,[sp,#0x1ec] ;// x0 - LDR y0 ,[sp,#0x1f0] ;// y0 - LDR width, [sp,#0x218] ;// width - MLA tmp2, width, y0, x0 ;// y0*width+x0 - ADD ref, ref, tmp2 ;// ref += y0*width+x0 - ADD ref, ref, #8 ;// ref = ref+8 - LDR mb, [sp, #0x1e8] ;// mb - - ;// pack values to count register - ;// [31:28] loop_x (partWidth-1) - ;// [27:24] loop_y (partHeight-1) - ;// [23:20] partWidth-1 - ;// [19:16] partHeight-1 - ;// [15:00] width - MOV count, width - SUB partW, partW, #1; - SUB partH, partH, #1; - ADD tmp2, partH, partW, LSL #4 - ADD count, count, tmp2, LSL #16 - - - LDR mult_20_01, = 0x00140001 - LDR mult_20_m5, = 0x0014FFFB - MOV plus16, #16 - AND tmp1, count, #0x000F0000 ;// partHeight-1 - AND tmp3, count, #0x00F00000 ;// partWidth-1 - ADD count, count, tmp1, LSL #8 -loop_y - LDR x_3_1, [ref, #-8] - ADD count, count, tmp3, LSL #8 - LDR x_7_5, [ref, #-4] - UXTB16 x_2_0, x_3_1 - UXTB16 x_3_1, x_3_1, ROR #8 - UXTB16 x_6_4, x_7_5 - -loop_x - UXTB16 x_7_5, x_7_5, ROR #8 - - SMLAD tmp1, x_2_0, mult_20_01, plus16 - SMLATB tmp3, x_2_0, mult_20_01, plus16 - SMLATB tmp2, x_2_0, mult_20_m5, plus16 - SMLATB tmp4, x_3_1, mult_20_01, plus16 - - SMLAD tmp1, x_3_1, mult_20_m5, tmp1 - SMLATB tmp3, x_3_1, mult_20_m5, tmp3 - SMLAD tmp2, x_3_1, mult_20_01, tmp2 - LDR x_3_1, [ref], #4 - SMLAD tmp4, x_6_4, mult_20_m5, tmp4 - - SMLABB tmp1, x_6_4, mult_20_m5, tmp1 - SMLADX tmp3, x_6_4, mult_20_m5, tmp3 - SMLADX tmp2, x_6_4, mult_20_01, tmp2 - SMLADX tmp4, x_7_5, mult_20_m5, tmp4 - - SMLABB tmp1, x_7_5, mult_20_01, tmp1 - UXTB16 x_2_0, x_3_1 - SMLABB tmp2, x_7_5, mult_20_m5, tmp2 - SMLADX tmp3, x_7_5, mult_20_01, tmp3 - SMLABB tmp4, x_2_0, mult_20_01, tmp4 - - MOV tmp2, tmp2, ASR #5 - MOV tmp1, tmp1, ASR #5 - PKHBT tmp2, tmp2, tmp4, LSL #(16-5) - PKHBT tmp1, tmp1, tmp3, LSL #(16-5) - USAT16 tmp2, #8, tmp2 - USAT16 tmp1, #8, tmp1 - - SUBS count, count, #4<<28 - ORR tmp1, tmp1, tmp2, LSL #8 - STR tmp1, [mb], #4 - BCC next_y - - UXTB16 x_3_1, x_3_1, ROR #8 - - SMLAD tmp1, x_6_4, mult_20_01, plus16 - SMLATB tmp3, x_6_4, mult_20_01, plus16 - SMLATB tmp2, x_6_4, mult_20_m5, plus16 - SMLATB tmp4, x_7_5, mult_20_01, plus16 - - SMLAD tmp1, x_7_5, mult_20_m5, tmp1 - SMLATB tmp3, x_7_5, mult_20_m5, tmp3 - SMLAD tmp2, x_7_5, mult_20_01, tmp2 - LDR x_7_5, [ref], #4 - SMLAD tmp4, x_2_0, mult_20_m5, tmp4 - - SMLABB tmp1, x_2_0, mult_20_m5, tmp1 - SMLADX tmp3, x_2_0, mult_20_m5, tmp3 - SMLADX tmp2, x_2_0, mult_20_01, tmp2 - SMLADX tmp4, x_3_1, mult_20_m5, tmp4 - - SMLABB tmp1, x_3_1, mult_20_01, tmp1 - UXTB16 x_6_4, x_7_5 - SMLABB tmp2, x_3_1, mult_20_m5, tmp2 - SMLADX tmp3, x_3_1, mult_20_01, tmp3 - SMLABB tmp4, x_6_4, mult_20_01, tmp4 - - MOV tmp2, tmp2, ASR #5 - MOV tmp1, tmp1, ASR #5 - PKHBT tmp2, tmp2, tmp4, LSL #(16-5) - PKHBT tmp1, tmp1, tmp3, LSL #(16-5) - USAT16 tmp2, #8, tmp2 - USAT16 tmp1, #8, tmp1 - - SUBS count, count, #4<<28 - ORR tmp1, tmp1, tmp2, LSL #8 - STR tmp1, [mb], #4 - BCS loop_x - -next_y - AND tmp3, count, #0x00F00000 ;// partWidth-1 - SMLABB ref, count, mult_20_01, ref ;// +width - ADDS mb, mb, #16 ;// +16, Carry=0 - SBC mb, mb, tmp3, LSR #20 ;// -(partWidth-1)-1 - SBC ref, ref, tmp3, LSR #20 ;// -(partWidth-1)-1 - ADDS count, count, #(1<<28)-(1<<24) - BGE loop_y - - ADD sp,sp,#0x1f4 - LDMFD sp!, {r4-r11, pc} - - END - |