Add openmax dl routines for review. MUST NOT BE LANDED

third_party/openmax_dl/dl/api/armCOMM_s.h

Index: third_party/openmax_dl/dl/api/armCOMM_s.h
diff --git a/third_party/openmax_dl/dl/api/armCOMM_s.h b/third_party/openmax_dl/dl/api/armCOMM_s.h
new file mode 100644
index 0000000000000000000000000000000000000000..6b0d2be66a2f8337d79b944b393cd962e1cea427
--- /dev/null
+++ b/third_party/openmax_dl/dl/api/armCOMM_s.h
@@ -0,0 +1,409 @@
+@// -*- Mode: asm; -*-
+@//
+@//  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+@//
+@//  Use of this source code is governed by a BSD-style license
+@//  that can be found in the LICENSE file in the root of the source
+@//  tree. An additional intellectual property rights grant can be found
+@//  in the file PATENTS.  All contributing project authors may
+@//  be found in the AUTHORS file in the root of the source tree.
+@//
+@//  This file was originally licensed as follows. It has been
+@//  relicensed with permission from the copyright holders.
+@//
+	
+@// 
+@// File Name:  armCOMM_s.h
+@// OpenMAX DL: v1.0.2
+@// Last Modified Revision:   13871
+@// Last Modified Date:       Fri, 09 May 2008
+@// 
+@// (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
+@// 
+@// 
+@//
+@// ARM optimized OpenMAX common header file
+@//
+
+	.set	_SBytes, 0	@ Number of scratch bytes on stack
+	.set	_Workspace, 0	@ Stack offset of scratch workspace
+
+	.set	_RRegList, 0	@ R saved register list (last register number)
+	.set	_DRegList, 0	@ D saved register list (last register number)
+
+        @// Work out a list of R saved registers, and how much stack space is needed.
+	@// gas doesn't support setting a variable to a string, so we set _RRegList to 
+	@// the register number.
+	.macro	_M_GETRREGLIST	rreg
+	.ifeqs "\rreg", ""
+	@ Nothing needs to be saved
+	.exitm
+	.endif
+	@ If rreg is lr or r4, save lr and r4
+	.ifeqs "\rreg", "lr"
+	.set	_RRegList, 4
+	.exitm
+	.endif
+
+	.ifeqs "\rreg", "r4"
+	.set	_RRegList, 4
+	.exitm
+	.endif
+
+	@ If rreg = r5 or r6, save up to register r6
+	.ifeqs "\rreg", "r5"
+	.set	_RRegList, 6
+	.exitm
+	.endif
+	.ifeqs "\rreg", "r6"
+	.set	_RRegList, 6
+	.exitm
+	.endif
+
+	@ If rreg = r7 or r8, save up to register r8
+	.ifeqs "\rreg", "r7"
+	.set	_RRegList, 8
+	.exitm
+	.endif
+	.ifeqs "\rreg", "r8"
+	.set	_RRegList, 8
+	.exitm
+	.endif
+
+	@ If rreg = r9 or r10, save up to register r10
+	.ifeqs "\rreg", "r9"
+	.set	_RRegList, 10
+	.exitm
+	.endif
+	.ifeqs "\rreg", "r10"
+	.set	_RRegList, 10
+	.exitm
+	.endif
+
+	@ If rreg = r11 or r12, save up to register r12
+	.ifeqs "\rreg", "r11"
+	.set	_RRegList, 12
+	.exitm
+	.endif
+	.ifeqs "\rreg", "r12"
+	.set	_RRegList, 12
+	.exitm
+	.endif
+
+	.warning "Unrecognized saved r register limit: \rreg"
+	.endm
+
+	@ Work out list of D saved registers, like for R registers.
+	.macro	_M_GETDREGLIST dreg
+	.ifeqs "\dreg", ""
+	.set	_DRegList, 0
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d8"
+	.set	_DRegList, 8
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d9"
+	.set	_DRegList, 9
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d10"
+	.set	_DRegList, 10
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d11"
+	.set	_DRegList, 11
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d12"
+	.set	_DRegList, 12
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d13"
+	.set	_DRegList, 13
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d14"
+	.set	_DRegList, 14
+	.exitm
+	.endif
+
+	.ifeqs "\dreg", "d15"
+	.set	_DRegList, 15
+	.exitm
+	.endif
+
+	.warning "Unrecognized saved d register limit: \rreg"
+	.endm
+
+@//////////////////////////////////////////////////////////
+@// Function header and footer macros
+@//////////////////////////////////////////////////////////      
+	
+        @ Function Header Macro    
+        @ Generates the function prologue
+        @ Note that functions should all be "stack-moves-once"
+        @ The FNSTART and FNEND macros should be the only places
+        @ where the stack moves.
+        @    
+        @  name  = function name
+        @  rreg  = ""   don't stack any registers
+        @          "lr" stack "lr" only
+        @          "rN" stack registers "r4-rN,lr"
+        @  dreg  = ""   don't stack any D registers
+        @          "dN" stack registers "d8-dN"
+        @
+        @ Note: ARM Archicture procedure call standard AAPCS
+        @ states that r4-r11, sp, d8-d15 must be preserved by
+        @ a compliant function.
+	.macro	M_START name, rreg, dreg
+	.set	_Workspace, 0
+
+	@ Define the function and make it external.
+	.global	\name
+	.func	\name
+	.section	.text.\name,"ax",%progbits
+	.align	2
+\name :		
+.fnstart
+	@ Save specified R registers
+	_M_GETRREGLIST	\rreg
+	_M_PUSH_RREG
+
+	@ Save specified D registers
+        _M_GETDREGLIST  \dreg
+	_M_PUSH_DREG
+
+	@ Ensure size claimed on stack is 8-byte aligned
+	.if (_SBytes & 7) != 0
+	.set	_SBytes, _SBytes + (8 - (_SBytes & 7))
+	.endif
+	.if _SBytes != 0
+		sub	sp, sp, #_SBytes
+	.endif	
+	.endm
+
+        @ Function Footer Macro        
+        @ Generates the function epilogue
+	.macro M_END
+	@ Restore the stack pointer to its original value on function entry
+	.if _SBytes != 0
+		add	sp, sp, #_SBytes
+	.endif
+	@ Restore any saved R or D registers.
+	_M_RET
+	.fnend	
+	.endfunc
+        @ Reset the global stack tracking variables back to their
+	@ initial values.
+	.set _SBytes, 0
+	.endm
+
+	@// Based on the value of _DRegList, push the specified set of registers 
+	@// to the stack.  Is there a better way?
+	.macro _M_PUSH_DREG
+	.if _DRegList == 8
+		vpush	{d8}
+	.exitm
+	.endif
+	
+	.if _DRegList == 9
+		vpush	{d8-d9}
+	.exitm
+	.endif
+	
+	.if _DRegList == 10
+		vpush	{d8-d10}
+	.exitm
+	.endif
+	
+	.if _DRegList == 11
+		vpush	{d8-d11}
+	.exitm
+	.endif
+	
+	.if _DRegList == 12
+		vpush	{d8-d12}
+	.exitm
+	.endif
+	
+	.if _DRegList == 13
+		vpush	{d8-d13}
+	.exitm
+	.endif
+	
+	.if _DRegList == 14
+		vpush	{d8-d14}
+	.exitm
+	.endif
+	
+	.if _DRegList == 15
+		vpush	{d8-d15}
+	.exitm
+	.endif
+	.endm
+
+	@// Based on the value of _RRegList, push the specified set of registers 
+	@// to the stack.  Is there a better way?
+	.macro _M_PUSH_RREG
+	.if _RRegList == 4
+		stmfd	sp!, {r4, lr}
+	.exitm
+	.endif
+	
+	.if _RRegList == 6
+		stmfd	sp!, {r4-r6, lr}
+	.exitm
+	.endif
+	
+	.if _RRegList == 8
+		stmfd	sp!, {r4-r8, lr}
+	.exitm
+	.endif
+	
+	.if _RRegList == 10
+		stmfd	sp!, {r4-r10, lr}
+	.exitm
+	.endif
+	
+	.if _RRegList == 12
+		stmfd	sp!, {r4-r12, lr}
+	.exitm
+	.endif
+	.endm
+
+	@// The opposite of _M_PUSH_DREG
+	.macro  _M_POP_DREG
+	.if _DRegList == 8
+		vpop	{d8}
+	.exitm
+	.endif
+	
+	.if _DRegList == 9
+		vpop	{d8-d9}
+	.exitm
+	.endif
+	
+	.if _DRegList == 10
+		vpop	{d8-d10}
+	.exitm
+	.endif
+	
+	.if _DRegList == 11
+		vpop	{d8-d11}
+	.exitm
+	.endif
+	
+	.if _DRegList == 12
+		vpop	{d8-d12}
+	.exitm
+	.endif
+	
+	.if _DRegList == 13
+		vpop	{d8-d13}
+	.exitm
+	.endif
+	
+	.if _DRegList == 14
+		vpop	{d8-d14}
+	.exitm
+	.endif
+	
+	.if _DRegList == 15
+		vpop	{d8-d15}
+	.exitm
+	.endif
+	.endm
+
+	@// The opposite of _M_PUSH_RREG
+	.macro _M_POP_RREG cc
+	.if _RRegList == 0
+		bx\cc lr
+	.exitm
+	.endif
+	.if _RRegList == 4
+		ldm\cc\()fd	sp!, {r4, pc}
+	.exitm
+	.endif
+	
+	.if _RRegList == 6
+		ldm\cc\()fd	sp!, {r4-r6, pc}
+	.exitm
+	.endif
+	
+	.if _RRegList == 8
+		ldm\cc\()fd	sp!, {r4-r8, pc}
+	.exitm
+	.endif
+	
+	.if _RRegList == 10
+		ldm\cc\()fd	sp!, {r4-r10, pc}
+	.exitm
+	.endif
+	
+	.if _RRegList == 12
+		ldm\cc\()fd	sp!, {r4-r12, pc}
+	.exitm
+	.endif
+	.endm
+	
+        @ Produce function return instructions
+	.macro	_M_RET cc
+	_M_POP_DREG \cc
+	_M_POP_RREG \cc
+	.endm	
+	
+        @// Allocate 4-byte aligned area of name
+        @// |name| and size |size| bytes.
+	.macro	M_ALLOC4 name, size
+	.if	(_SBytes & 3) != 0
+	.set	_SBytes, _SBytes + (4 - (_SBytes & 3))
+	.endif
+	.set	\name\()_F, _SBytes
+	.set	_SBytes, _SBytes + \size
+	
+	.endm
+
+        @ Load word from stack
+	.macro M_LDR r, a0, a1, a2, a3
+	_M_DATA "ldr", 4, \r, \a0, \a1, \a2, \a3
+	.endm
+
+        @ Store word to stack
+	.macro M_STR r, a0, a1, a2, a3
+	_M_DATA "str", 4, \r, \a0, \a1, \a2, \a3
+	.endm
+
+        @ Macro to perform a data access operation
+        @ Such as LDR or STR
+        @ The addressing mode is modified such that
+        @ 1. If no address is given then the name is taken
+        @    as a stack offset
+        @ 2. If the addressing mode is not available for the
+        @    state being assembled for (eg Thumb) then a suitable
+        @    addressing mode is substituted.
+        @
+        @ On Entry:
+        @ $i = Instruction to perform (eg "LDRB")
+        @ $a = Required byte alignment
+        @ $r = Register(s) to transfer (eg "r1")
+        @ $a0,$a1,$a2. Addressing mode and condition. One of:
+        @     label {,cc}
+        @     [base]                    {,,,cc}
+        @     [base, offset]{!}         {,,cc}
+        @     [base, offset, shift]{!}  {,cc}
+        @     [base], offset            {,,cc}
+        @     [base], offset, shift     {,cc}
+	@
+	@ WARNING: Most of the above are not supported, except the first case.
+	.macro _M_DATA i, a, r, a0, a1, a2, a3
+	.set	_Offset, _Workspace + \a0\()_F
+	\i\a1	\r, [sp, #_Offset]	
+	.endm