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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s new file mode 100755 index 0000000..634a484 --- /dev/null +++ b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s @@ -0,0 +1,298 @@ +; 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 h264bsdInterpolateChromaHor function +;-- +;------------------------------------------------------------------------------- + + + IF :DEF: H264DEC_WINASM + ;// We dont use REQUIRE8 and PRESERVE8 for winasm + ELSE + REQUIRE8 + PRESERVE8 + ENDIF + + AREA |.text|, CODE + + +;// h264bsdInterpolateChromaHor register allocation + +ref RN 0 +ptrA RN 0 + +mb RN 1 +block RN 1 + +x0 RN 2 +count RN 2 + +y0 RN 3 +valX RN 3 + +width RN 4 + +height RN 5 +tmp7 RN 5 + +chrPW RN 6 +tmp8 RN 6 + +tmp1 RN 7 +chrPH RN 7 + +tmp2 RN 8 + +tmp3 RN 9 + +tmp4 RN 10 + +tmp5 RN 11 + +tmp6 RN 12 + +c32 RN 14 +xFrac RN 14 + +;// Function exports and imports + + IMPORT h264bsdFillBlock + + EXPORT h264bsdInterpolateChromaHor + +;// Function arguments +;// +;// u8 *ref, : 0xc4 +;// u8 *predPartChroma, : 0xc8 +;// i32 x0, : 0xcc +;// i32 y0, : 0xd0 +;// u32 width, : 0xf8 +;// u32 height, : 0xfc +;// u32 xFrac, : 0x100 +;// u32 chromaPartWidth, : 0x104 +;// u32 chromaPartHeight : 0x108 + +h264bsdInterpolateChromaHor + STMFD sp!, {r0-r11,lr} + SUB sp, sp, #0xc4 + + LDR chrPW, [sp, #0x104] ;// chromaPartWidth + LDR width, [sp, #0xf8] ;// width + CMP x0, #0 + BLT do_fill + + ADD tmp6, x0, chrPW ;// tmp6 = x0+ chromaPartWidth + ADD tmp6, tmp6, #1 ;// tmp6 = x0 + chromaPartWidth + 1 + CMP tmp6, width ;// x0+chromaPartWidth+1 > width + BHI do_fill + + CMP y0, #0 + BLT do_fill + LDR chrPH, [sp, #0x108] ;// chromaPartHeight + LDR height, [sp, #0xfc] ;// height + ADD tmp6, y0, chrPH ;// tmp6 = y0 + chromaPartHeight + CMP tmp6, height + BLS skip_fill + +do_fill + LDR chrPH, [sp, #0x108] ;// chromaPartHeight + LDR height, [sp, #0xfc] ;// height + ADD tmp8, chrPW, #1 ;// tmp8 = chromaPartWidth+1 + MOV tmp2, tmp8 ;// tmp2 = chromaPartWidth+1 + STMIA sp,{width,height,tmp8,chrPH,tmp2} + ADD block, sp, #0x1c ;// block + BL h264bsdFillBlock + + LDR x0, [sp, #0xcc] + LDR y0, [sp, #0xd0] + LDR ref, [sp, #0xc4] ;// ref + STMIA sp,{width,height,tmp8,chrPH,tmp2} + ADD block, sp, #0x1c ;// block + MLA ref, height, width, ref ;// ref += width * height; + MLA block, chrPH, tmp8, block;// block + (chromaPH)*(chromaPW+1) + BL h264bsdFillBlock + + MOV x0, #0 ;// x0 = 0 + MOV y0, #0 ;// y0 = 0 + STR x0, [sp, #0xcc] + STR y0, [sp, #0xd0] + ADD ref, sp, #0x1c ;// ref = block + STR ref, [sp, #0xc4] ;// ref + + STR chrPH, [sp, #0xfc] ;// height + STR tmp8, [sp, #0xf8] ;// width + MOV width, tmp8 + SUB chrPW, chrPW, #1 + +skip_fill + MLA tmp3, y0, width, x0 ;// tmp3 = y0*width+x0 + LDR xFrac, [sp, #0x100] ;// xFrac + ADD ptrA, ref, tmp3 ;// ptrA = ref + y0*width+x0 + RSB valX, xFrac, #8 ;// valX = 8-xFrac + + LDR mb, [sp, #0xc8] ;// predPartChroma + + + ;// pack values to count register + ;// [31:28] loop_x (chromaPartWidth-1) + ;// [27:24] loop_y (chromaPartHeight-1) + ;// [23:20] chromaPartWidth-1 + ;// [19:16] chromaPartHeight-1 + ;// [15:00] nothing + + SUB tmp2, chrPH, #1 ;// chromaPartHeight-1 + SUB tmp1, chrPW, #1 ;// chromaPartWidth-1 + ADD count, count, tmp2, LSL #16 ;// chromaPartHeight-1 + ADD count, count, tmp2, LSL #24 ;// loop_y + ADD count, count, tmp1, LSL #20 ;// chromaPartWidth-1 + AND tmp2, count, #0x00F00000 ;// loop_x + PKHBT valX, valX, xFrac, LSL #16 ;// |xFrac|valX | + MOV valX, valX, LSL #3 ;// multiply by 8 in advance + MOV c32, #32 + + + ;/////////////////////////////////////////////////////////////////////////// + ;// Cb + ;/////////////////////////////////////////////////////////////////////////// + + ;// 2x2 pels per iteration + ;// bilinear vertical interpolation + +loop1_y + ADD count, count, tmp2, LSL #8 + LDRB tmp1, [ptrA, width] + LDRB tmp2, [ptrA], #1 + +loop1_x + LDRB tmp3, [ptrA, width] + LDRB tmp4, [ptrA], #1 + + PKHBT tmp5, tmp1, tmp3, LSL #16 + PKHBT tmp6, tmp2, tmp4, LSL #16 + + LDRB tmp1, [ptrA, width] + LDRB tmp2, [ptrA], #1 + + SMLAD tmp5, tmp5, valX, c32 ;// multiply + SMLAD tmp6, tmp6, valX, c32 ;// multiply + + PKHBT tmp7, tmp3, tmp1, LSL #16 + PKHBT tmp8, tmp4, tmp2, LSL #16 + + SMLAD tmp7, tmp7, valX, c32 ;// multiply + SMLAD tmp8, tmp8, valX, c32 ;// multiply + + MOV tmp5, tmp5, LSR #6 ;// scale down + STRB tmp5, [mb,#8] ;// store row 2 col 1 + + MOV tmp6, tmp6, LSR #6 ;// scale down + STRB tmp6, [mb],#1 ;// store row 1 col 1 + + MOV tmp7, tmp7, LSR #6 ;// scale down + STRB tmp7, [mb,#8] ;// store row 2 col 2 + + MOV tmp8, tmp8, LSR #6 ;// scale down + STRB tmp8, [mb],#1 ;// store row 1 col 2 + + SUBS count, count, #2<<28 + BCS loop1_x + + AND tmp2, count, #0x00F00000 + + ADDS mb, mb, #16 + SBC mb, mb, tmp2, LSR #20 + ADD ptrA, ptrA, width, LSL #1 + SBC ptrA, ptrA, tmp2, LSR #20 + SUB ptrA, ptrA, #1 + + ADDS count, count, #0xE << 24 + BGE loop1_y + + ;/////////////////////////////////////////////////////////////////////////// + ;// Cr + ;/////////////////////////////////////////////////////////////////////////// + LDR height, [sp,#0xfc] ;// height + LDR ref, [sp, #0xc4] ;// ref + LDR tmp1, [sp, #0xd0] ;// y0 + LDR tmp2, [sp, #0xcc] ;// x0 + LDR mb, [sp, #0xc8] ;// predPartChroma + + ADD tmp1, height, tmp1 + MLA tmp3, tmp1, width, tmp2 + ADD ptrA, ref, tmp3 + ADD mb, mb, #64 + + AND count, count, #0x00FFFFFF + AND tmp1, count, #0x000F0000 + ADD count, count, tmp1, LSL #8 + AND tmp2, count, #0x00F00000 + + ;// 2x2 pels per iteration + ;// bilinear vertical interpolation +loop2_y + ADD count, count, tmp2, LSL #8 + LDRB tmp1, [ptrA, width] + LDRB tmp2, [ptrA], #1 + +loop2_x + LDRB tmp3, [ptrA, width] + LDRB tmp4, [ptrA], #1 + + PKHBT tmp5, tmp1, tmp3, LSL #16 + PKHBT tmp6, tmp2, tmp4, LSL #16 + + LDRB tmp1, [ptrA, width] + LDRB tmp2, [ptrA], #1 + + SMLAD tmp5, tmp5, valX, c32 ;// multiply + SMLAD tmp6, tmp6, valX, c32 ;// multiply + + PKHBT tmp7, tmp3, tmp1, LSL #16 + PKHBT tmp8, tmp4, tmp2, LSL #16 + + SMLAD tmp7, tmp7, valX, c32 ;// multiply + SMLAD tmp8, tmp8, valX, c32 ;// multiply + + MOV tmp5, tmp5, LSR #6 ;// scale down + STRB tmp5, [mb,#8] ;// store row 2 col 1 + + MOV tmp6, tmp6, LSR #6 ;// scale down + STRB tmp6, [mb],#1 ;// store row 1 col 1 + + MOV tmp7, tmp7, LSR #6 ;// scale down + STRB tmp7, [mb,#8] ;// store row 2 col 2 + + MOV tmp8, tmp8, LSR #6 ;// scale down + STRB tmp8, [mb],#1 ;// store row 1 col 2 + + SUBS count, count, #2<<28 + BCS loop2_x + + AND tmp2, count, #0x00F00000 + + ADDS mb, mb, #16 + SBC mb, mb, tmp2, LSR #20 + ADD ptrA, ptrA, width, LSL #1 + SBC ptrA, ptrA, tmp2, LSR #20 + SUB ptrA, ptrA, #1 + + ADDS count, count, #0xE << 24 + BGE loop2_y + + ADD sp,sp,#0xd4 + LDMFD sp!, {r4-r11,pc} + + END |