@@ @@ Copyright (C) 2012 Roman Pauer @@ @@ Permission is hereby granted, free of charge, to any person obtaining a copy of @@ this software and associated documentation files (the "Software"), to deal in @@ the Software without restriction, including without limitation the rights to @@ use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies @@ of the Software, and to permit persons to whom the Software is furnished to do @@ so, subject to the following conditions: @@ @@ The above copyright notice and this permission notice shall be included in all @@ copies or substantial portions of the Software. @@ @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR @@ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE @@ SOFTWARE. @@ .macro _neon_normalxx_8_16_line_middle src, dst, pal, counter, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9, dststride, dA, dB ldr \reg1, [\src] @ reg1 = src[0-3] ldr \reg2, [\src, #4] @ reg2 = src[4-7] ldr \reg3, [\src, #8] @ reg3 = src[8-11] ldr \reg4, [\src, #12] @ reg4 = src[12-15] ubfx \reg5, \reg1, #0, #8 @ reg5 = src[0] ldr \reg5, [\pal, \reg5, lsl #2] @ reg5 = pal[src[0]] ubfx \reg6, \reg1, #8, #8 @ reg6 = src[1] ldr \reg6, [\pal, \reg6, lsl #2] @ reg6 = pal[src[1]] ubfx \reg7, \reg1, #16, #8 @ reg7 = src[2] ldr \reg7, [\pal, \reg7, lsl #2] @ reg7 = pal[src[2]] lsr \reg1, \reg1, #24 @ reg1 = src[3] ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[3]] ubfx \reg8, \reg2, #0, #8 @ reg8 = src[4] ldr \reg8, [\pal, \reg8, lsl #2] @ reg8 = pal[src[4]] ubfx \reg9, \reg2, #8, #8 @ reg9 = src[5] ldr \reg9, [\pal, \reg9, lsl #2] @ reg9 = pal[src[5]] bfi \reg5, \reg6, #16, #16 @ reg5 = pal[src[0]] | pal[src[1]] << 16 bfi \reg7, \reg1, #16, #16 @ reg7 = pal[src[2]] | pal[src[3]] << 16 ubfx \reg6, \reg2, #16, #8 @ reg6 = src[6] vmov d16, \reg5, \reg7 @ d16 = pal[src[0-3]] lsr \reg2, \reg2, #24 @ reg2 = src[7] ldr \reg6, [\pal, \reg6, lsl #2] @ reg6 = pal[src[6]] bfi \reg8, \reg9, #16, #16 @ reg8 = pal[src[4]] | pal[src[5]] << 16 ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[7]] ubfx \reg1, \reg3, #0, #8 @ reg1 = src[8] ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[8]] ubfx \reg5, \reg3, #8, #8 @ reg5 = src[9] ldr \reg5, [\pal, \reg5, lsl #2] @ reg5 = pal[src[9]] ubfx \reg7, \reg3, #16, #8 @ reg7 = src[10] ldr \reg7, [\pal, \reg7, lsl #2] @ reg7 = pal[src[10]] bfi \reg6, \reg2, #16, #16 @ reg6 = pal[src[6]] | pal[src[7]] << 16 vmov d17, \reg8, \reg6 @ d17 = pal[src[4-7]] lsr \reg3, \reg3, #24 @ reg3 = src[11] ldr \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[src[11]] ubfx \reg2, \reg4, #0, #8 @ reg2 = src[12] ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[12]] ubfx \reg6, \reg4, #8, #8 @ reg6 = src[13] ldr \reg6, [\pal, \reg6, lsl #2] @ reg6 = pal[src[13]] ubfx \reg8, \reg4, #16, #8 @ reg8 = src[14] ldr \reg8, [\pal, \reg8, lsl #2] @ reg8 = pal[src[14]] lsr \reg4, \reg4, #24 @ reg4 = src[15] ldr \reg4, [\pal, \reg4, lsl #2] @ reg4 = pal[src[15]] bfi \reg1, \reg5, #16, #16 @ reg1 = pal[src[8]] | pal[src[9]] << 16 bfi \reg7, \reg3, #16, #16 @ reg7 = pal[src[10]] | pal[src[11]] << 16 bfi \reg2, \reg6, #16, #16 @ reg2 = pal[src[12]] | pal[src[13]] << 16 vmov \dA, \reg1, \reg7 @ dA = pal[src[8-11]] sub \counter, \counter, #16 @ counter -= 16 bfi \reg8, \reg4, #16, #16 @ reg8 = pal[src[14]] | pal[src[15]] << 16 add \src, \src, #16 @ src += 16 vmov \dB, \reg2, \reg8 @ dB = pal[src[12-15]] cmp \counter, #16 .endm .macro neon_normal1x_8_16_line src, dst, pal, counter, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9 @ align src to 4 bytes andS \reg5, \src, #3 @ reg5 = src & 3 beq 10f @ first 1-3 pixels ldr \reg1, [\src] @ reg1 = src[0-3] rsb \reg5, \reg5, #4 @ reg5 = 4 - (src & 3) add \src, \src, \reg5 @ src += reg5 sub \counter, \counter, \reg5 @ counter -= reg5 subS \reg5, \reg5, #1 @ reg5-- ubfx \reg2, \reg1, #0, #8 @ reg2 = src[0] ubfxne \reg3, \reg1, #8, #8 @ reg3 = src[1] ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[reg2] ldrne \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[reg3] strh \reg2, [\dst] @ dst[0] = reg2 strneh \reg3, [\dst, #2]! @ dst[1] = reg3; dst++ subneS \reg5, \reg5, #1 @ reg5-- ubfxne \reg4, \reg1, #16, #8 @ reg4 = src[2] add \dst, \dst, #2 @ dst++ ldrne \reg4, [\pal, \reg4, lsl #2] @ reg4 = pal[reg4] strneh \reg4, [\dst], #2 @ dst[2] = reg4; dst++ @ middle pixels (16 per iteration) 10: _neon_normalxx_8_16_line_middle \src, \dst, \pal, \counter, \reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8, \reg9, , d18, d19 vst1.16 {d16-d19}, [\dst]! @ dst[0-15] = d16-d19; dst += 2*16 bhs 10b @ last 0-15 bytes cmp \counter, #0 beq 40f cmp \counter, #4 blo 30f @ 4-12 pixels (4 pre iteration) 20: ldr \reg1, [\src] @ reg1 = src[0-3] sub \counter, \counter, #4 @ counter -= 4 add \src, \src, #4 @ src += 4 add \dst, \dst, #(2*4) @ dst += 4 ubfx \reg2, \reg1, #0, #8 @ reg2 = src[0] cmp \counter, #4 ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[0]] ubfx \reg3, \reg1, #8, #8 @ reg3 = src[1] ldr \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[src[1]] ubfx \reg4, \reg1, #16, #8 @ reg4 = src[2] ldr \reg4, [\pal, \reg4, lsl #2] @ reg4 = pal[src[2]] lsr \reg1, \reg1, #24 @ reg1 = src[3] ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[3]] strh \reg2, [\dst, #-8] @ dst[0] = reg2 strh \reg3, [\dst, #-6] @ dst[1] = reg3 strh \reg4, [\dst, #-4] @ dst[2] = reg4 strh \reg1, [\dst, #-2] @ dst[3] = reg1 bhs 20b cmp \counter, #0 beq 40f @ last 1-3 pixels 30: ldrb \reg1, [\src] @ reg1 = src[0] subS \counter, \counter, #1 @ counter-- ldrneb \reg2, [\src, #1]! @ reg2 = src[1]; src++ add \src, \src, #1 @ src++ ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] ldrne \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[1]] strh \reg1, [\dst] @ dst[0] = reg1 strneh \reg2, [\dst, #2]! @ dst[1] = reg2; dst++ subneS \counter, \counter, #1 @ counter-- ldrneb \reg3, [\src], #1 @ reg3 = src[2]; src++ add \dst, \dst, #2 @ dst++ ldrne \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[src[2]] strneh \reg3, [\dst], #2 @ dst[2] = reg3; dst++ 40: .endm .macro neon_normal2x_8_16_line src, dst, pal, counter, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9, dststride @ align src to 4 bytes andS \reg5, \src, #3 @ reg5 = src & 3 beq 10f @ first 1-3 pixels rsb \reg5, \reg5, #4 @ reg5 = 4 - (src & 3) 1: ldrb \reg1, [\src], #1 @ reg1 = src[0]; src++ add \reg2, \dst, \dststride add \dst, \dst, #4 @ dst += 2*2 sub \counter, \counter, #1 @ counter-- ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] subS \reg5, \reg5, #1 @ reg5-- strh \reg1, [\dst, #-4] @ dst[0] = reg1 strh \reg1, [\dst, #-2] @ dst[1] = reg1 strh \reg1, [\reg2] @ dst1[0] = reg1 strh \reg1, [\reg2, #2] @ dst1[1] = reg1 bne 1b @ middle pixels (16 per iteration) 10: _neon_normalxx_8_16_line_middle \src, \dst, \pal, \counter, \reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8, \reg9, \dststride, d20, d21 vmov q9, q8 add \reg1, \dst, \dststride @ reg1 = dst + dststride vmov q11, q10 vst2.16 {q8,q9}, [\dst]! @ dst[0-7] = q8-q9; dst += 2*2*8 vst2.16 {q10,q11}, [\dst]! @ dst[8-15] = q10-q11; dst += 2*2*8 vst2.16 {q8,q9}, [\reg1]! @ dst1[0-7] = q8-q9; dst1 += 2*2*8 vst2.16 {q10,q11}, [\reg1]! @ dst1[8-15] = q10-q11; dst1 += 2*2*8 bhs 10b @ last 0-15 bytes cmp \counter, #0 beq 40f cmp \counter, #4 blo 30f @ 4-12 pixels (4 pre iteration) 20: ldr \reg1, [\src] @ reg1 = src[0-3] sub \counter, \counter, #4 @ counter -= 4 add \src, \src, #4 @ src += 4 ubfx \reg2, \reg1, #0, #8 @ reg2 = src[0] cmp \counter, #4 ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[0]] ubfx \reg3, \reg1, #8, #8 @ reg3 = src[1] ldr \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[src[1]] ubfx \reg4, \reg1, #16, #8 @ reg4 = src[2] ldr \reg4, [\pal, \reg4, lsl #2] @ reg4 = pal[src[2]] lsr \reg1, \reg1, #24 @ reg1 = src[3] ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[3]] add \reg5, \dst, \dststride bfi \reg2, \reg3, #16, #16 @ reg2 = reg2 | reg3 << 16 vmov.32 d16[0], \reg2 bfi \reg4, \reg1, #16, #16 @ reg4 = reg4 | reg1 << 16 vmov.32 d16[1], \reg4 vmov d17, d16 vst2.16 {d16,d17}, [\dst]! @ dst[0-7] = d16-d17; dst += 2*2*4 vst2.16 {d16,d17}, [\reg5] @ dst1[0-7] = d16-d17 bhs 20b cmp \counter, #0 beq 40f @ last 1-3 pixels 30: ldrb \reg1, [\src], #1 @ reg1 = src[0]; src++ add \reg2, \dst, \dststride add \dst, \dst, #4 @ dst += 2*2 ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] subS \counter, \counter, #1 @ counter-- strh \reg1, [\dst, #-4] @ dst[0] = reg1 strh \reg1, [\dst, #-2] @ dst[1] = reg1 strh \reg1, [\reg2] @ dst1[0] = reg1 strh \reg1, [\reg2, #2] @ dst1[1] = reg1 bne 30b 40: .endm .macro neon_normal3x_8_16_line src, dst, pal, counter, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9, dststride @ align src to 4 bytes andS \reg5, \src, #3 @ reg5 = src & 3 beq 10f @ first 1-3 pixels rsb \reg5, \reg5, #4 @ reg5 = 4 - (src & 3) 1: ldrb \reg1, [\src], #1 @ reg1 = src[0]; src++ add \reg2, \dst, \dststride add \reg3, \reg2, \dststride add \dst, \dst, #6 @ dst += 3*2 sub \counter, \counter, #1 @ counter-- ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] subS \reg5, \reg5, #1 @ reg5-- strh \reg1, [\dst, #-6] @ dst[0] = reg1 strh \reg1, [\dst, #-4] @ dst[1] = reg1 strh \reg1, [\dst, #-2] @ dst[2] = reg1 bfi \reg1, \reg1, #16, #16 @ reg1 = reg1 | reg1 << 16 strh \reg1, [\reg2] @ dst1[0] = reg1 str \reg1, [\reg2, #2] @ dst1[1-2] = reg1 strh \reg1, [\reg3] @ dst2[0] = reg1 str \reg1, [\reg3, #2] @ dst2[1-2] = reg1 bne 1b @ middle pixels (16 per iteration) 10: _neon_normalxx_8_16_line_middle \src, \dst, \pal, \counter, \reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8, \reg9, \dststride, d22, d23 vmov q9, q8 add \reg1, \dst, \dststride @ reg1 = dst + dststride vmov q10, q8 add \reg2, \dst, \dststride, lsl #1 @ reg1 = dst + 2 * dststride vmov q12, q11 vst3.16 {d16,d18,d20}, [\dst]! @ dst[0-3] = q8-q10[0]; dst += 3*2*4 vmov q13, q11 vst3.16 {d17,d19,d21}, [\dst]! @ dst[4-7] = q8-q10[1]; dst += 3*2*4 vst3.16 {d22,d24,d26}, [\dst]! @ dst[8-11] = q11-q13[0]; dst += 3*2*4 vst3.16 {d23,d25,d27}, [\dst]! @ dst[12-15] = q11-q13[1]; dst += 3*2*4 vst3.16 {d16,d18,d20}, [\reg1]! @ dst1[0-3] = q8-q10[0]; dst1 += 3*2*4 vst3.16 {d17,d19,d21}, [\reg1]! @ dst1[4-7] = q8-q10[1]; dst1 += 3*2*4 vst3.16 {d22,d24,d26}, [\reg1]! @ dst1[8-11] = q11-q13[0]; dst1 += 3*2*4 vst3.16 {d23,d25,d27}, [\reg1]! @ dst1[12-15] = q11-q13[1]; dst1 += 3*2*4 vst3.16 {d16,d18,d20}, [\reg2]! @ dst2[0-3] = q8-q10[0]; dst2 += 3*2*4 vst3.16 {d17,d19,d21}, [\reg2]! @ dst2[4-7] = q8-q10[1]; dst2 += 3*2*4 vst3.16 {d22,d24,d26}, [\reg2]! @ dst2[8-11] = q11-q13[0]; dst2 += 3*2*4 vst3.16 {d23,d25,d27}, [\reg2]! @ dst2[12-15] = q11-q13[1]; dst2 += 3*2*4 bhs 10b @ last 0-15 bytes cmp \counter, #0 beq 40f cmp \counter, #4 blo 30f @ 4-12 pixels (4 pre iteration) 20: ldr \reg1, [\src] @ reg1 = src[0-3] sub \counter, \counter, #4 @ counter -= 4 add \src, \src, #4 @ src += 4 ubfx \reg2, \reg1, #0, #8 @ reg2 = src[0] cmp \counter, #4 ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[0]] ubfx \reg3, \reg1, #8, #8 @ reg3 = src[1] ldr \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[src[1]] ubfx \reg4, \reg1, #16, #8 @ reg4 = src[2] ldr \reg4, [\pal, \reg4, lsl #2] @ reg4 = pal[src[2]] lsr \reg1, \reg1, #24 @ reg1 = src[3] ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[3]] add \reg5, \dst, \dststride bfi \reg2, \reg3, #16, #16 @ reg2 = reg2 | reg3 << 16 vmov.32 d16[0], \reg2 add \reg6, \reg5, \dststride bfi \reg4, \reg1, #16, #16 @ reg4 = reg4 | reg1 << 16 vmov.32 d16[1], \reg4 vmov d17, d16 vmov d18, d16 vst3.16 {d16,d17,d18}, [\dst]! @ dst[0-11] = d16-d18; dst += 3*2*4 vst3.16 {d16,d17,d18}, [\reg5] @ dst1[0-11] = d16-d18 vst3.16 {d16,d17,d18}, [\reg6] @ dst2[0-11] = d16-d18 bhs 20b cmp \counter, #0 beq 40f @ last 1-3 pixels 30: ldrb \reg1, [\src], #1 @ reg1 = src[0]; src++ add \reg2, \dst, \dststride add \reg3, \reg2, \dststride add \dst, \dst, #6 @ dst += 3*2 ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] subS \counter, \counter, #1 @ counter-- strh \reg1, [\dst, #-6] @ dst[0] = reg1 strh \reg1, [\dst, #-4] @ dst[1] = reg1 strh \reg1, [\dst, #-2] @ dst[2] = reg1 bfi \reg1, \reg1, #16, #16 @ reg1 = reg1 | reg1 << 16 strh \reg1, [\reg2] @ dst1[0] = reg1 str \reg1, [\reg2, #2] @ dst1[1-2] = reg1 strh \reg1, [\reg3] @ dst2[0] = reg1 str \reg1, [\reg3, #2] @ dst2[1-2] = reg1 bne 30b 40: .endm .macro neon_normal4x_8_16_line src, dst, pal, counter, reg1, reg2, reg3, reg4, reg5, reg6, reg7, reg8, reg9, dststride @ align src to 4 bytes andS \reg5, \src, #3 @ reg5 = src & 3 beq 10f @ first 1-3 pixels rsb \reg5, \reg5, #4 @ reg5 = 4 - (src & 3) 1: ldrb \reg1, [\src], #1 @ reg1 = src[0]; src++ add \reg2, \dst, \dststride add \reg3, \reg2, \dststride add \dst, \dst, #8 @ dst += 4*2 sub \counter, \counter, #1 @ counter-- ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] add \reg4, \reg3, \dststride strh \reg1, [\dst, #-8] @ dst[0] = reg1 subS \reg5, \reg5, #1 @ reg5-- strh \reg1, [\dst, #-6] @ dst[1] = reg1 bfi \reg1, \reg1, #16, #16 @ reg1 = reg1 | reg1 << 16 str \reg1, [\dst, #-4] @ dst[2-3] = reg1 str \reg1, [\reg2] @ dst1[0-1] = reg1 str \reg1, [\reg2, #4] @ dst1[2-3] = reg1 str \reg1, [\reg3] @ dst2[0-1] = reg1 str \reg1, [\reg3, #4] @ dst2[2-3] = reg1 str \reg1, [\reg4] @ dst3[0-1] = reg1 str \reg1, [\reg4, #4] @ dst3[2-3] = reg1 bne 1b @ middle pixels (16 per iteration) 10: _neon_normalxx_8_16_line_middle \src, \dst, \pal, \counter, \reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8, \reg9, \dststride, d24, d25 vmov q9, q8 add \reg1, \dst, \dststride @ reg1 = dst + dststride vmov q10, q8 add \reg2, \dst, \dststride, lsl #1 @ reg2 = dst + 2 * dststride vmov q11, q8 add \reg3, \reg1, \dststride,lsl #1 @ reg3 = dst + 3 * dststride vmov q13, q12 vst4.16 {d16,d18,d20,d22}, [\dst]! @ dst[0-3] = q8-q11[0]; dst += 4*2*4 vmov q14, q12 vmov q15, q12 vst4.16 {d17,d19,d21,d23}, [\dst]! @ dst[4-7] = q8-q11[1]; dst += 4*2*4 vst4.16 {d24,d26,d28,d30}, [\dst]! @ dst[8-11] = q12-q15[0]; dst += 4*2*4 vst4.16 {d25,d27,d29,d31}, [\dst]! @ dst[12-15] = q12-q15[1]; dst += 4*2*4 vst4.16 {d16,d18,d20,d22}, [\reg1]! @ dst1[0-3] = q8-q11[0]; dst1 += 4*2*4 vst4.16 {d17,d19,d21,d23}, [\reg1]! @ dst1[4-7] = q8-q11[1]; dst1 += 4*2*4 vst4.16 {d24,d26,d28,d30}, [\reg1]! @ dst1[8-11] = q12-q15[0]; dst1 += 4*2*4 vst4.16 {d25,d27,d29,d31}, [\reg1]! @ dst1[12-15] = q12-q15[1]; dst1 += 4*2*4 vst4.16 {d16,d18,d20,d22}, [\reg2]! @ dst2[0-3] = q8-q11[0]; dst2 += 4*2*4 vst4.16 {d17,d19,d21,d23}, [\reg2]! @ dst2[4-7] = q8-q11[1]; dst2 += 4*2*4 vst4.16 {d24,d26,d28,d30}, [\reg2]! @ dst2[8-11] = q12-q15[0]; dst2 += 4*2*4 vst4.16 {d25,d27,d29,d31}, [\reg2]! @ dst2[12-15] = q12-q15[1]; dst2 += 4*2*4 vst4.16 {d16,d18,d20,d22}, [\reg3]! @ dst3[0-3] = q8-q11[0]; dst3 += 4*2*4 vst4.16 {d17,d19,d21,d23}, [\reg3]! @ dst3[4-7] = q8-q11[1]; dst3 += 4*2*4 vst4.16 {d24,d26,d28,d30}, [\reg3]! @ dst3[8-11] = q12-q15[0]; dst3 += 4*2*4 vst4.16 {d25,d27,d29,d31}, [\reg3]! @ dst3[12-15] = q12-q15[1]; dst3 += 4*2*4 bhs 10b @ last 0-15 bytes cmp \counter, #0 beq 40f cmp \counter, #4 blo 30f @ 4-12 pixels (4 pre iteration) 20: ldr \reg1, [\src] @ reg1 = src[0-3] sub \counter, \counter, #4 @ counter -= 4 add \src, \src, #4 @ src += 4 ubfx \reg2, \reg1, #0, #8 @ reg2 = src[0] cmp \counter, #4 ldr \reg2, [\pal, \reg2, lsl #2] @ reg2 = pal[src[0]] ubfx \reg3, \reg1, #8, #8 @ reg3 = src[1] ldr \reg3, [\pal, \reg3, lsl #2] @ reg3 = pal[src[1]] ubfx \reg4, \reg1, #16, #8 @ reg4 = src[2] ldr \reg4, [\pal, \reg4, lsl #2] @ reg4 = pal[src[2]] lsr \reg1, \reg1, #24 @ reg1 = src[3] ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[3]] add \reg5, \dst, \dststride bfi \reg2, \reg3, #16, #16 @ reg2 = reg2 | reg3 << 16 vmov.32 d16[0], \reg2 add \reg6, \reg5, \dststride bfi \reg4, \reg1, #16, #16 @ reg4 = reg4 | reg1 << 16 add \reg7, \reg6, \dststride vmov.32 d16[1], \reg4 vmov d17, d16 vmov d18, d16 vmov d19, d16 vst4.16 {d16,d17,d18,d19}, [\dst]! @ dst[0-15] = d16-d19; dst += 4*2*4 vst4.16 {d16,d17,d18,d19}, [\reg5] @ dst1[0-15] = d16-d19 vst4.16 {d16,d17,d18,d19}, [\reg6] @ dst2[0-15] = d16-d19 vst4.16 {d16,d17,d18,d19}, [\reg7] @ dst3[0-15] = d16-d19 bhs 20b cmp \counter, #0 beq 40f @ last 1-3 pixels 30: ldrb \reg1, [\src], #1 @ reg1 = src[0]; src++ add \reg2, \dst, \dststride add \reg3, \reg2, \dststride add \dst, \dst, #8 @ dst += 4*2 ldr \reg1, [\pal, \reg1, lsl #2] @ reg1 = pal[src[0]] add \reg4, \reg3, \dststride strh \reg1, [\dst, #-8] @ dst[0] = reg1 subS \counter, \counter, #1 @ counter-- strh \reg1, [\dst, #-6] @ dst[1] = reg1 bfi \reg1, \reg1, #16, #16 @ reg1 = reg1 | reg1 << 16 str \reg1, [\dst, #-4] @ dst[2-3] = reg1 str \reg1, [\reg2] @ dst1[0-1] = reg1 str \reg1, [\reg2, #4] @ dst1[2-3] = reg1 str \reg1, [\reg3] @ dst2[0-1] = reg1 str \reg1, [\reg3, #4] @ dst2[2-3] = reg1 str \reg1, [\reg4] @ dst3[0-1] = reg1 str \reg1, [\reg4, #4] @ dst3[2-3] = reg1 bne 30b 40: .endm