11a222f5d9
Adds following targets to configure script to support RVCT compilation without operating system support (for Profiler or bare metal images). - armv5te-none-rvct - armv6-none-rvct - armv7-none-rvct To strip OS specific parts from the code "os_support"-config was added to script and CONFIG_OS_SUPPORT flag is used in the code to exclude OS specific parts such as OS specific includes and function calls for timers and threads etc. This was done to enable RVCT compilation for profiling purposes or running the image on bare metal target with Lauterbach. Removed separate AREA directives for READONLY data in armv6 and neon assembly files to fix the RVCT compilation. Otherwise "ldr <reg>, =label" syntax would have been needed to prevent linker errors. This syntax is not supported by older gnu assemblers. Change-Id: I14f4c68529e8c27397502fbc3010a54e505ddb43
186 lines
5.8 KiB
NASM
186 lines
5.8 KiB
NASM
;
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; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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EXPORT |vp8_bilinear_predict8x8_neon|
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ARM
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REQUIRE8
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PRESERVE8
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AREA ||.text||, CODE, READONLY, ALIGN=2
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; r0 unsigned char *src_ptr,
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; r1 int src_pixels_per_line,
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; r2 int xoffset,
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; r3 int yoffset,
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; r4 unsigned char *dst_ptr,
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; stack(lr) int dst_pitch
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|vp8_bilinear_predict8x8_neon| PROC
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push {r4, lr}
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ldr r12, _bifilter8_coeff_
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ldr r4, [sp, #8] ;load parameters from stack
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ldr lr, [sp, #12] ;load parameters from stack
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cmp r2, #0 ;skip first_pass filter if xoffset=0
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beq skip_firstpass_filter
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;First pass: output_height lines x output_width columns (9x8)
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add r2, r12, r2, lsl #3 ;calculate filter location
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vld1.u8 {q1}, [r0], r1 ;load src data
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vld1.u32 {d31}, [r2] ;load first_pass filter
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vld1.u8 {q2}, [r0], r1
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vdup.8 d0, d31[0] ;first_pass filter (d0 d1)
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vld1.u8 {q3}, [r0], r1
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vdup.8 d1, d31[4]
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vld1.u8 {q4}, [r0], r1
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vmull.u8 q6, d2, d0 ;(src_ptr[0] * vp8_filter[0])
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vmull.u8 q7, d4, d0
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vmull.u8 q8, d6, d0
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vmull.u8 q9, d8, d0
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vext.8 d3, d2, d3, #1 ;construct src_ptr[-1]
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vext.8 d5, d4, d5, #1
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vext.8 d7, d6, d7, #1
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vext.8 d9, d8, d9, #1
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vmlal.u8 q6, d3, d1 ;(src_ptr[1] * vp8_filter[1])
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vmlal.u8 q7, d5, d1
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vmlal.u8 q8, d7, d1
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vmlal.u8 q9, d9, d1
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vld1.u8 {q1}, [r0], r1 ;load src data
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vqrshrn.u16 d22, q6, #7 ;shift/round/saturate to u8
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vld1.u8 {q2}, [r0], r1
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vqrshrn.u16 d23, q7, #7
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vld1.u8 {q3}, [r0], r1
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vqrshrn.u16 d24, q8, #7
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vld1.u8 {q4}, [r0], r1
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vqrshrn.u16 d25, q9, #7
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;first_pass filtering on the rest 5-line data
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vld1.u8 {q5}, [r0], r1
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vmull.u8 q6, d2, d0 ;(src_ptr[0] * vp8_filter[0])
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vmull.u8 q7, d4, d0
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vmull.u8 q8, d6, d0
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vmull.u8 q9, d8, d0
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vmull.u8 q10, d10, d0
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vext.8 d3, d2, d3, #1 ;construct src_ptr[-1]
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vext.8 d5, d4, d5, #1
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vext.8 d7, d6, d7, #1
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vext.8 d9, d8, d9, #1
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vext.8 d11, d10, d11, #1
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vmlal.u8 q6, d3, d1 ;(src_ptr[1] * vp8_filter[1])
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vmlal.u8 q7, d5, d1
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vmlal.u8 q8, d7, d1
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vmlal.u8 q9, d9, d1
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vmlal.u8 q10, d11, d1
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vqrshrn.u16 d26, q6, #7 ;shift/round/saturate to u8
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vqrshrn.u16 d27, q7, #7
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vqrshrn.u16 d28, q8, #7
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vqrshrn.u16 d29, q9, #7
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vqrshrn.u16 d30, q10, #7
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;Second pass: 8x8
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secondpass_filter
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cmp r3, #0 ;skip second_pass filter if yoffset=0
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beq skip_secondpass_filter
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add r3, r12, r3, lsl #3
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add r0, r4, lr
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vld1.u32 {d31}, [r3] ;load second_pass filter
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add r1, r0, lr
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vdup.8 d0, d31[0] ;second_pass filter parameters (d0 d1)
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vdup.8 d1, d31[4]
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vmull.u8 q1, d22, d0 ;(src_ptr[0] * vp8_filter[0])
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vmull.u8 q2, d23, d0
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vmull.u8 q3, d24, d0
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vmull.u8 q4, d25, d0
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vmull.u8 q5, d26, d0
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vmull.u8 q6, d27, d0
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vmull.u8 q7, d28, d0
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vmull.u8 q8, d29, d0
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vmlal.u8 q1, d23, d1 ;(src_ptr[pixel_step] * vp8_filter[1])
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vmlal.u8 q2, d24, d1
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vmlal.u8 q3, d25, d1
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vmlal.u8 q4, d26, d1
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vmlal.u8 q5, d27, d1
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vmlal.u8 q6, d28, d1
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vmlal.u8 q7, d29, d1
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vmlal.u8 q8, d30, d1
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vqrshrn.u16 d2, q1, #7 ;shift/round/saturate to u8
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vqrshrn.u16 d3, q2, #7
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vqrshrn.u16 d4, q3, #7
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vqrshrn.u16 d5, q4, #7
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vqrshrn.u16 d6, q5, #7
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vqrshrn.u16 d7, q6, #7
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vqrshrn.u16 d8, q7, #7
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vqrshrn.u16 d9, q8, #7
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vst1.u8 {d2}, [r4] ;store result
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vst1.u8 {d3}, [r0]
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vst1.u8 {d4}, [r1], lr
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vst1.u8 {d5}, [r1], lr
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vst1.u8 {d6}, [r1], lr
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vst1.u8 {d7}, [r1], lr
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vst1.u8 {d8}, [r1], lr
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vst1.u8 {d9}, [r1], lr
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pop {r4, pc}
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;--------------------
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skip_firstpass_filter
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vld1.u8 {d22}, [r0], r1 ;load src data
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vld1.u8 {d23}, [r0], r1
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vld1.u8 {d24}, [r0], r1
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vld1.u8 {d25}, [r0], r1
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vld1.u8 {d26}, [r0], r1
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vld1.u8 {d27}, [r0], r1
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vld1.u8 {d28}, [r0], r1
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vld1.u8 {d29}, [r0], r1
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vld1.u8 {d30}, [r0], r1
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b secondpass_filter
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;---------------------
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skip_secondpass_filter
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vst1.u8 {d22}, [r4], lr ;store result
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vst1.u8 {d23}, [r4], lr
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vst1.u8 {d24}, [r4], lr
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vst1.u8 {d25}, [r4], lr
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vst1.u8 {d26}, [r4], lr
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vst1.u8 {d27}, [r4], lr
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vst1.u8 {d28}, [r4], lr
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vst1.u8 {d29}, [r4], lr
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pop {r4, pc}
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ENDP
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;-----------------
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_bifilter8_coeff_
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DCD bifilter8_coeff
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bifilter8_coeff
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DCD 128, 0, 112, 16, 96, 32, 80, 48, 64, 64, 48, 80, 32, 96, 16, 112
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END
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