--- /dev/null
+/*****************************************************************************
+ * predict_armv6.S: h264 encoder
+ *****************************************************************************
+ * Copyright (C) 2009 x264 project
+ *
+ * Authors: David Conrad <lessen42@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+#include "asm.S"
+
+.fpu neon
+
+.section .rodata
+.align 4
+
+pw_76543210: .short 7,6,5,4,3,2,1,0
+
+.text
+
+// because gcc doesn't believe in using the free shift in add
+function x264_predict_4x4_h_armv6, export=1
+ ldrb r1, [r0, #0*FDEC_STRIDE-1]
+ ldrb r2, [r0, #1*FDEC_STRIDE-1]
+ ldrb r3, [r0, #2*FDEC_STRIDE-1]
+ ldrb ip, [r0, #3*FDEC_STRIDE-1]
+ add r1, r1, r1, lsl #8
+ add r2, r2, r2, lsl #8
+ add r3, r3, r3, lsl #8
+ add ip, ip, ip, lsl #8
+ add r1, r1, r1, lsl #16
+ str r1, [r0, #0*FDEC_STRIDE]
+ add r2, r2, r2, lsl #16
+ str r2, [r0, #1*FDEC_STRIDE]
+ add r3, r3, r3, lsl #16
+ str r3, [r0, #2*FDEC_STRIDE]
+ add ip, ip, ip, lsl #16
+ str ip, [r0, #3*FDEC_STRIDE]
+ bx lr
+.endfunc
+
+function x264_predict_4x4_dc_armv6, export=1
+ mov ip, #0
+ ldr r1, [r0, #-FDEC_STRIDE]
+ ldrb r2, [r0, #0*FDEC_STRIDE-1]
+ ldrb r3, [r0, #1*FDEC_STRIDE-1]
+ usad8 r1, r1, ip
+ add r2, r2, #4
+ ldrb ip, [r0, #2*FDEC_STRIDE-1]
+ add r2, r2, r3
+ ldrb r3, [r0, #3*FDEC_STRIDE-1]
+ add r2, r2, ip
+ add r2, r2, r3
+ add r1, r1, r2
+ lsr r1, r1, #3
+ add r1, r1, r1, lsl #8
+ add r1, r1, r1, lsl #16
+ str r1, [r0, #0*FDEC_STRIDE]
+ str r1, [r0, #1*FDEC_STRIDE]
+ str r1, [r0, #2*FDEC_STRIDE]
+ str r1, [r0, #3*FDEC_STRIDE]
+ bx lr
+.endfunc
+
+// return a1 = (a1+2*b1+c1+2)>>2 a2 = (a2+2*b2+c2+2)>>2
+.macro PRED4x4_LOWPASS a1 b1 c1 a2 b2 c2 pb_1
+ uhadd8 \a1, \a1, \c1
+ uhadd8 \a2, \a2, \c2
+ uhadd8 \c1, \a1, \b1
+ uhadd8 \c2, \a2, \b2
+ eor \a1, \a1, \b1
+ eor \a2, \a2, \b2
+ and \a1, \a1, \pb_1
+ and \a2, \a2, \pb_1
+ uadd8 \a1, \a1, \c1
+ uadd8 \a2, \a2, \c2
+.endm
+
+function x264_predict_4x4_ddr_armv6, export=1
+ ldr r1, [r0, # -FDEC_STRIDE]
+ ldrb r2, [r0, # -FDEC_STRIDE-1]
+ ldrb r3, [r0, #0*FDEC_STRIDE-1]
+ push {r4-r6,lr}
+ add r2, r2, r1, lsl #8
+ ldrb r4, [r0, #1*FDEC_STRIDE-1]
+ add r3, r3, r2, lsl #8
+ ldrb r5, [r0, #2*FDEC_STRIDE-1]
+ ldrb r6, [r0, #3*FDEC_STRIDE-1]
+ add r4, r4, r3, lsl #8
+ add r5, r5, r4, lsl #8
+ add r6, r6, r5, lsl #8
+ ldr ip, pb_1
+ PRED4x4_LOWPASS r1, r2, r3, r4, r5, r6, ip
+ str r1, [r0, #0*FDEC_STRIDE]
+ lsl r2, r1, #8
+ lsl r3, r1, #16
+ lsl r4, r4, #8
+ lsl r5, r1, #24
+ add r2, r2, r4, lsr #24
+ str r2, [r0, #1*FDEC_STRIDE]
+ add r3, r3, r4, lsr #16
+ str r3, [r0, #2*FDEC_STRIDE]
+ add r5, r5, r4, lsr #8
+ str r5, [r0, #3*FDEC_STRIDE]
+ pop {r4-r6,pc}
+.endfunc
+
+pb_1: .word 0x01010101
+
+function x264_predict_4x4_ddl_neon, export=1
+ sub r0, #FDEC_STRIDE
+ mov ip, #FDEC_STRIDE
+ vld1.64 {d0}, [r0], ip
+ vdup.8 d3, d0[7]
+ vext.8 d1, d0, d0, #1
+ vext.8 d2, d0, d3, #2
+ vhadd.u8 d0, d0, d2
+ vrhadd.u8 d0, d0, d1
+ vst1.32 {d0[0]}, [r0,:32], ip
+ vext.8 d1, d0, d0, #1
+ vext.8 d2, d0, d0, #2
+ vst1.32 {d1[0]}, [r0,:32], ip
+ vext.8 d3, d0, d0, #3
+ vst1.32 {d2[0]}, [r0,:32], ip
+ vst1.32 {d3[0]}, [r0,:32], ip
+ bx lr
+.endfunc
+
+function x264_predict_8x8_dc_neon, export=1
+ mov ip, #0
+ ldrd r2, [r1, #8]
+ push {r4-r5,lr}
+ ldrd r4, [r1, #16]
+ lsl r3, r3, #8
+ ldrb lr, [r1, #7]
+ usad8 r2, r2, ip
+ usad8 r3, r3, ip
+ usada8 r2, r4, ip, r2
+ add lr, lr, #8
+ usada8 r3, r5, ip, r3
+ add r2, r2, lr
+ mov ip, #FDEC_STRIDE
+ add r2, r2, r3
+ lsr r2, r2, #4
+
+ vdup.8 d0, r2
+.rept 8
+ vst1.64 {d0}, [r0,:64], ip
+.endr
+ pop {r4-r5,pc}
+.endfunc
+
+
+function x264_predict_8x8_h_neon, export=1
+ add r1, r1, #7
+ mov ip, #FDEC_STRIDE
+ vld1.64 {d16}, [r1]
+ vdup.8 d0, d16[7]
+ vdup.8 d1, d16[6]
+ vst1.64 {d0}, [r0,:64], ip
+ vdup.8 d2, d16[5]
+ vst1.64 {d1}, [r0,:64], ip
+ vdup.8 d3, d16[4]
+ vst1.64 {d2}, [r0,:64], ip
+ vdup.8 d4, d16[3]
+ vst1.64 {d3}, [r0,:64], ip
+ vdup.8 d5, d16[2]
+ vst1.64 {d4}, [r0,:64], ip
+ vdup.8 d6, d16[1]
+ vst1.64 {d5}, [r0,:64], ip
+ vdup.8 d7, d16[0]
+ vst1.64 {d6}, [r0,:64], ip
+ vst1.64 {d7}, [r0,:64], ip
+ bx lr
+.endfunc
+
+function x264_predict_8x8c_h_neon, export=1
+ sub r1, r0, #1
+ mov ip, #FDEC_STRIDE
+.rept 4
+ vld1.8 {d0[]}, [r1], ip
+ vld1.8 {d2[]}, [r1], ip
+ vst1.64 {d0}, [r0,:64], ip
+ vst1.64 {d2}, [r0,:64], ip
+.endr
+ bx lr
+.endfunc
+
+function x264_predict_8x8c_v_neon, export=1
+ sub r0, r0, #FDEC_STRIDE
+ mov ip, #FDEC_STRIDE
+ vld1.64 {d0}, [r0,:64], ip
+.rept 8
+ vst1.64 {d0}, [r0,:64], ip
+.endr
+ bx lr
+.endfunc
+
+
+function x264_predict_16x16_dc_neon, export=1
+ sub r3, r0, #FDEC_STRIDE
+ sub r0, r0, #1
+ vld1.64 {d0-d1}, [r3,:128]
+ ldrb ip, [r0], #FDEC_STRIDE
+ vaddl.u8 q0, d0, d1
+ ldrb r1, [r0], #FDEC_STRIDE
+ vadd.u16 d0, d0, d1
+ vpadd.u16 d0, d0, d0
+ vpadd.u16 d0, d0, d0
+.rept 4
+ ldrb r2, [r0], #FDEC_STRIDE
+ add ip, ip, r1
+ ldrb r3, [r0], #FDEC_STRIDE
+ add ip, ip, r2
+ ldrb r1, [r0], #FDEC_STRIDE
+ add ip, ip, r3
+.endr
+ ldrb r2, [r0], #FDEC_STRIDE
+ add ip, ip, r1
+ ldrb r3, [r0], #FDEC_STRIDE
+ add ip, ip, r2
+
+ sub r0, r0, #FDEC_STRIDE*16
+ add ip, ip, r3
+ vdup.16 d1, ip
+ vadd.u16 d0, d0, d1
+ mov ip, #FDEC_STRIDE
+ add r0, r0, #1
+ vrshr.u16 d0, d0, #5
+ vdup.8 q0, d0[0]
+.rept 16
+ vst1.64 {d0-d1}, [r0,:64], ip
+.endr
+ bx lr
+.endfunc
+
+function x264_predict_16x16_h_neon, export=1
+ sub r1, r0, #1
+ mov ip, #FDEC_STRIDE
+.rept 8
+ vld1.8 {d0[]}, [r1], ip
+ vmov d1, d0
+ vld1.8 {d2[]}, [r1], ip
+ vmov d3, d2
+ vst1.64 {d0-d1}, [r0,:128], ip
+ vst1.64 {d2-d3}, [r0,:128], ip
+.endr
+ bx lr
+.endfunc
+
+function x264_predict_16x16_v_neon, export=1
+ sub r0, r0, #FDEC_STRIDE
+ mov ip, #FDEC_STRIDE
+ vld1.64 {d0-d1}, [r0,:128], ip
+.rept 16
+ vst1.64 {d0-d1}, [r0,:128], ip
+.endr
+ bx lr
+.endfunc
--- /dev/null
+/*****************************************************************************
+ * predict.c: h264 encoder
+ *****************************************************************************
+ * Copyright (C) 2009 x264 project
+ *
+ * Authors: David Conrad <lessen42@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+#include "common/common.h"
+#include "predict.h"
+#include "pixel.h"
+
+void x264_predict_4x4_dc_armv6( uint8_t *src );
+void x264_predict_4x4_h_armv6( uint8_t *src );
+void x264_predict_4x4_ddr_armv6( uint8_t *src );
+void x264_predict_4x4_ddl_neon( uint8_t *src );
+
+void x264_predict_8x8c_h_neon( uint8_t *src );
+void x264_predict_8x8c_v_neon( uint8_t *src );
+
+void x264_predict_8x8_dc_neon( uint8_t *src, uint8_t edge[33] );
+void x264_predict_8x8_h_neon( uint8_t *src, uint8_t edge[33] );
+
+void x264_predict_16x16_dc_neon( uint8_t *src );
+void x264_predict_16x16_h_neon( uint8_t *src );
+void x264_predict_16x16_v_neon( uint8_t *src );
+
+void x264_predict_4x4_init_arm( int cpu, x264_predict_t pf[12] )
+{
+ if (!(cpu&X264_CPU_ARMV6))
+ return;
+
+ pf[I_PRED_4x4_H] = x264_predict_4x4_h_armv6;
+ pf[I_PRED_4x4_DC] = x264_predict_4x4_dc_armv6;
+ pf[I_PRED_4x4_DDR] = x264_predict_4x4_ddr_armv6;
+
+ if (!(cpu&X264_CPU_NEON))
+ return;
+
+ pf[I_PRED_4x4_DDL] = x264_predict_4x4_ddl_neon;
+}
+
+void x264_predict_8x8c_init_arm( int cpu, x264_predict_t pf[7] )
+{
+ if (!(cpu&X264_CPU_NEON))
+ return;
+
+ pf[I_PRED_CHROMA_H] = x264_predict_8x8c_h_neon;
+ pf[I_PRED_CHROMA_V] = x264_predict_8x8c_v_neon;
+}
+
+void x264_predict_8x8_init_arm( int cpu, x264_predict8x8_t pf[12], x264_predict_8x8_filter_t *predict_filter )
+{
+ if (!(cpu&X264_CPU_NEON))
+ return;
+
+ pf[I_PRED_8x8_DC] = x264_predict_8x8_dc_neon;
+ pf[I_PRED_8x8_H] = x264_predict_8x8_h_neon;
+}
+
+void x264_predict_16x16_init_arm( int cpu, x264_predict_t pf[7] )
+{
+ if (!(cpu&X264_CPU_NEON))
+ return;
+
+ pf[I_PRED_16x16_DC ] = x264_predict_16x16_dc_neon;
+ pf[I_PRED_16x16_H ] = x264_predict_16x16_h_neon;
+ pf[I_PRED_16x16_V ] = x264_predict_16x16_v_neon;
+}
projects / libx264 / commitdiff