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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s new file mode 100755 index 0000000..244fc6f --- /dev/null +++ b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s @@ -0,0 +1,347 @@ +; 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 h264bsdInterpolateVerHalf function +;-- +;------------------------------------------------------------------------------- + + + IF :DEF: H264DEC_WINASM + ;// We dont use REQUIRE8 and PRESERVE8 for winasm + ELSE + REQUIRE8 + PRESERVE8 + ENDIF + + AREA |.text|, CODE + +;// h264bsdInterpolateVerHalf register allocation + +ref RN 0 + +mb RN 1 +buff RN 1 + +count RN 2 +x0 RN 2 + +res RN 3 +y0 RN 3 + +tmp1 RN 4 + +tmp2 RN 5 +height RN 5 + +tmp3 RN 6 +partW RN 6 + +tmp4 RN 7 +partH RN 7 + +tmp5 RN 8 +tmp6 RN 9 + +tmpa RN 10 +tmpb RN 11 +width RN 12 + +plus16 RN 14 + + +;// function exports and imports + + IMPORT h264bsdFillBlock + + EXPORT h264bsdInterpolateVerHalf + +;// Approach to vertical interpolation +;// +;// Interpolation is done by using 32-bit loads and stores +;// and by using 16 bit arithmetic. 4x4 block is processed +;// in each round. +;// +;// |a_11|a_11|a_11|a_11|...|a_1n|a_1n|a_1n|a_1n| +;// |b_11|b_11|b_11|b_11|...|b_1n|b_1n|b_1n|b_1n| +;// |c_11|c_11|c_11|c_11|...|c_1n|c_1n|c_1n|c_1n| +;// |d_11|d_11|d_11|d_11|...|d_1n|d_1n|d_1n|d_1n| +;// .. +;// .. +;// |a_m1|a_m1|a_m1|a_m1|... +;// |b_m1|b_m1|b_m1|b_m1|... +;// |c_m1|c_m1|c_m1|c_m1|... +;// |d_m1|d_m1|d_m1|d_m1|... + +h264bsdInterpolateVerHalf + STMFD sp!, {r0-r11, lr} + SUB sp, sp, #0x1e4 + + CMP x0, #0 + BLT do_fill ;// (x0 < 0) + LDR partW, [sp,#0x220] ;// partWidth + ADD tmp5, x0, partW ;// (x0+partWidth) + LDR width, [sp,#0x218] ;// width + CMP tmp5, width + BHI do_fill ;// (x0+partW)>width + + CMP y0, #0 + BLT do_fill ;// (y0 < 0) + LDR partH, [sp,#0x224] ;// partHeight + ADD tmp6, y0, partH ;// (y0+partHeight) + ADD tmp6, tmp6, #5 ;// (y0+partH+5) + LDR height, [sp,#0x21c] ;// height + CMP tmp6, height + BLS skip_fill ;// no overfill needed + + +do_fill + LDR partH, [sp,#0x224] ;// partHeight + ADD tmp5, partH, #5 ;// r2 = partH + 5; + LDR height, [sp,#0x21c] ;// height + LDR partW, [sp,#0x220] ;// partWidth + STMIB sp, {height, partW} ;// sp+4 = height, sp+8 = partWidth + STR tmp5, [sp,#0xc] ;// sp+c partHeight+5 + STR partW, [sp,#0x10] ;// sp+10 = partWidth + 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 partW, [sp,#0x218] + + +skip_fill + LDR x0 ,[sp,#0x1ec] ;// x0 + LDR y0 ,[sp,#0x1f0] ;// y0 + LDR width, [sp,#0x218] ;// width + MLA tmp6, width, y0, x0 ;// y0*width+x0 + ADD ref, ref, tmp6 ;// ref += y0*width+x0 + LDR mb, [sp, #0x1e8] ;// mb + + ADD count, partW, partH, LSL #16 ;// |partH|partW| + LDR tmp5, = 0x00010001 + SSUB16 count, count, tmp5; ;// |partH-1|partW-1| + LDR plus16, = 0x00100010 + + AND tmp1, count, #0x000000FF ;// partWidth + + +loop_y + ADD count, count, tmp1, LSL #24 ;// partWidth-1 to top byte + +loop_x + LDR tmp1, [ref], width ;// |a4|a3|a2|a1| + LDR tmp2, [ref], width ;// |c4|c3|c2|c1| + LDR tmp3, [ref], width ;// |g4|g3|g2|g1| + LDR tmp4, [ref], width ;// |m4|m3|m2|m1| + LDR tmp5, [ref], width ;// |r4|r3|r2|r1| + LDR tmp6, [ref], width ;// |t4|t3|t2|t1| + + ;// first four pixels + UXTB16 tmpa, tmp3 ;// |g3|g1| + UXTAB16 tmpa, tmpa, tmp4 ;// |g3+m3|g1+m1| + UXTB16 tmpb, tmp2 ;// |c3|c1| + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + + UXTAB16 tmpb, tmpb, tmp5 ;// |c3+r3|c1+r1| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpa, tmpa, tmp1 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp6 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR res, = 0x00FF00FF + UXTB16 tmpa, tmp3, ROR #8 ;// |g4|g2| + UXTAB16 tmpa, tmpa, tmp4, ROR #8 ;// |g4+m4|g2+m2| + AND res, res, tmpb, LSR #5 ;// mask and divide by 32 + + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTB16 tmpb, tmp2, ROR #8 ;// |c4|c2| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpb, tmpb, tmp5, ROR #8 ;// |c4+r4|c2+r2| + UXTAB16 tmpa, tmpa, tmp1, ROR #8 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp6, ROR #8 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR tmp1, [ref], width + LDR tmpa, = 0xFF00FF00 + + AND tmpa, tmpa, tmpb, LSL #3 ;// mask and divede by 32 + ORR res, res, tmpa + STR res, [mb], #16 ;// next row (mb) + + ;// tmp2 = |a4|a3|a2|a1| + ;// tmp3 = |c4|c3|c2|c1| + ;// tmp4 = |g4|g3|g2|g1| + ;// tmp5 = |m4|m3|m2|m1| + ;// tmp6 = |r4|r3|r2|r1| + ;// tmp1 = |t4|t3|t2|t1| + + ;// second four pixels + UXTB16 tmpa, tmp4 ;// |g3|g1| + UXTAB16 tmpa, tmpa, tmp5 ;// |g3+m3|g1+m1| + UXTB16 tmpb, tmp3 ;// |c3|c1| + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTAB16 tmpb, tmpb, tmp6 ;// |c3+r3|c1+r1| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpa, tmpa, tmp2 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp1 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR res, = 0x00FF00FF + UXTB16 tmpa, tmp4, ROR #8 ;// |g4|g2| + UXTAB16 tmpa, tmpa, tmp5, ROR #8 ;// |g4+m4|g2+m2| + AND res, res, tmpb, LSR #5 ;// mask and divide by 32 + + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTB16 tmpb, tmp3, ROR #8 ;// |c4|c2| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpb, tmpb, tmp6, ROR #8 ;// |c4+r4|c2+r2| + UXTAB16 tmpa, tmpa, tmp2, ROR #8 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp1, ROR #8 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR tmp2, [ref], width + LDR tmpa, = 0xFF00FF00 + + AND tmpa, tmpa, tmpb, LSL #3 ;// mask and divide by 32 + ORR res, res, tmpa + STR res, [mb], #16 ;// next row + + ;// tmp3 = |a4|a3|a2|a1| + ;// tmp4 = |c4|c3|c2|c1| + ;// tmp5 = |g4|g3|g2|g1| + ;// tmp6 = |m4|m3|m2|m1| + ;// tmp1 = |r4|r3|r2|r1| + ;// tmp2 = |t4|t3|t2|t1| + + ;// third four pixels + UXTB16 tmpa, tmp5 ;// |g3|g1| + UXTAB16 tmpa, tmpa, tmp6 ;// |g3+m3|g1+m1| + UXTB16 tmpb, tmp4 ;// |c3|c1| + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTAB16 tmpb, tmpb, tmp1 ;// |c3+r3|c1+r1| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpa, tmpa, tmp3 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp2 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR res, = 0x00FF00FF + UXTB16 tmpa, tmp5, ROR #8 ;// |g4|g2| + UXTAB16 tmpa, tmpa, tmp6, ROR #8 ;// |g4+m4|g2+m2| + AND res, res, tmpb, LSR #5 ;// mask and divide by 32 + + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTB16 tmpb, tmp4, ROR #8 ;// |c4|c2| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpb, tmpb, tmp1, ROR #8 ;// |c4+r4|c2+r2| + UXTAB16 tmpa, tmpa, tmp3, ROR #8 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp2, ROR #8 ;// 16+20(G+M)+A+T + + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR tmp3, [ref] + LDR tmpa, = 0xFF00FF00 + + ;// decrement loop_x counter + SUBS count, count, #4<<24 ;// (partWidth-1) -= 4; + + AND tmpa, tmpa, tmpb, LSL #3 ;// mask and divide by 32 + ORR res, res, tmpa + STR res, [mb], #16 ;// next row + + ;// tmp4 = |a4|a3|a2|a1| + ;// tmp5 = |c4|c3|c2|c1| + ;// tmp6 = |g4|g3|g2|g1| + ;// tmp1 = |m4|m3|m2|m1| + ;// tmp2 = |r4|r3|r2|r1| + ;// tmp3 = |t4|t3|t2|t1| + + ;// fourth four pixels + UXTB16 tmpa, tmp6 ;// |g3|g1| + UXTAB16 tmpa, tmpa, tmp1 ;// |g3+m3|g1+m1| + UXTB16 tmpb, tmp5 ;// |c3|c1| + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTAB16 tmpb, tmpb, tmp2 ;// |c3+r3|c1+r1| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpa, tmpa, tmp4 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp3 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR res, = 0x00FF00FF + UXTB16 tmpa, tmp6, ROR #8 ;// |g4|g2| + UXTAB16 tmpa, tmpa, tmp1, ROR #8 ;// |g4+m4|g2+m2| + AND res, res, tmpb, LSR #5 ;// mask and divide by 32 + + ADD tmpa, tmpa, tmpa, LSL #2 ;// 5(G+M) + UXTB16 tmpb, tmp5, ROR #8 ;// |c4|c2| + ADD tmpa, plus16, tmpa, LSL #2 ;// 16+20(G+M) + UXTAB16 tmpb, tmpb, tmp2, ROR #8 ;// |c4+r4|c2+r2| + UXTAB16 tmpa, tmpa, tmp4, ROR #8 ;// 16+20(G+M)+A + UXTAB16 tmpa, tmpa, tmp3, ROR #8 ;// 16+20(G+M)+A+T + + ADD tmpb, tmpb, tmpb, LSL #2 ;// 5(C+R) + SSUB16 tmpa, tmpa, tmpb ;// 16+20(G+M)+(A+T)-5(C+R) + + USAT16 tmpb, #13, tmpa ;// saturate + LDR tmp4, = 0xFF00FF00 + + ;// calculate "ref" address for next round + SUB ref, ref, width, LSL #3 ;// ref -= 8*width; + ADD ref, ref, #4; ;// next column (4 pixels) + AND tmpa, tmp4, tmpb, LSL #3 ;// mask and divide by 32 + ORR res, res, tmpa + STR res, [mb], #-44 + + BCS loop_x + + ADDS count, count, #252<<16 ;// (partHeight-1) -= 4; + ADD ref, ref, width, LSL #2 ;// ref += 4*width + AND tmp1, count, #0x000000FF ;// partWidth-1 + ADD tmp2, tmp1, #1 ;// partWidth + SUB ref, ref, tmp2 ;// ref -= partWidth + ADD mb, mb, #64; + SUB mb, mb, tmp2; ;// mb -= partWidth + BGE loop_y + + ADD sp,sp,#0x1f4 + LDMFD sp!, {r4-r11, pc} + + END |