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;//
;//
;// File Name: omxVCCOMM_ExpandFrame_I_s.s
;// OpenMAX DL: v1.0.2
;// Revision: 12290
;// Date: Wednesday, April 9, 2008
;//
;// (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
;//
;//
;//
;// Description:
;// This function will Expand Frame boundary pixels into Plane
;//
;//
;// Include standard headers
INCLUDE omxtypes_s.h
INCLUDE armCOMM_s.h
M_VARIANTS CortexA8
;// Import symbols required from other files
;// (For example tables)
;// Set debugging level
DEBUG_ON SETL {FALSE}
IF CortexA8
M_START omxVCCOMM_ExpandFrame_I,r11
;//Input registers
pSrcDstPlane RN 0
iFrameWidth RN 1
iFrameHeight RN 2
iExpandPels RN 3
iPlaneStep RN 4
pTop RN 5
pBot RN 6
pDstTop RN 7
pDstBot RN 8
pLeft RN 5
pRight RN 6
pDstLeft RN 9
pDstRight RN 10
Offset RN 11
Temp RN 14
Counter RN 12
Tmp RN 7
;//Output registers
result RN 0
;// Neon registers
qData0 QN 0.U8
qData1 QN 1.U8
dData0 DN 0.U8
dData1 DN 1.U8
dData2 DN 2.U8
dData3 DN 3.U8
;// Define stack arguments
M_ARG pPlaneStep, 4
;// Load argument from the stack
M_LDR iPlaneStep, pPlaneStep
SUB pTop, pSrcDstPlane, #0 ;// Top row pointer of the frame
MUL Offset, iExpandPels, iPlaneStep ;// E*Step
SUB Temp, iFrameHeight, #1 ;// H-1
MUL Temp, iPlaneStep, Temp ;// (H-1)*Step
ADD pBot, Temp, pSrcDstPlane ;// BPtr = TPtr + (H-1)*Step
MOV Temp, iFrameWidth ;// Outer loop counter
;// Check if pSrcDstPlane and iPlaneStep are 16 byte aligned
TST pSrcDstPlane, #0xf
TSTEQ iPlaneStep, #0xf
BNE Hor8Loop00
;//
;// Copy top and bottom region of the plane as follows
;// top region = top row elements from the frame
;// bottom region = last row elements from the frame
;//
;// Case for 16 byte alignment
Hor16Loop00
SUB pDstTop, pTop, Offset
VLD1 qData0, [pTop @128]!
MOV Counter, iExpandPels ;// Inner loop counter
ADD pDstBot, pBot, iPlaneStep
VLD1 qData1, [pBot @128]!
Ver16Loop0
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
VST1 qData0, [pDstTop @128], iPlaneStep
SUBS Counter, Counter, #8
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
VST1 qData1, [pDstBot @128], iPlaneStep
BGT Ver16Loop0
SUBS Temp, Temp, #16
BGT Hor16Loop00
B EndAlignedLoop
;// Case for 8 byte alignment
Hor8Loop00
SUB pDstTop, pTop, Offset
VLD1 qData0, [pTop @64]!
MOV Counter, iExpandPels ;// Inner loop counter
ADD pDstBot, pBot, iPlaneStep
VLD1 qData1, [pBot @64]!
Ver8Loop0
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
VST1 qData0, [pDstTop @64], iPlaneStep
SUBS Counter, Counter, #8
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
VST1 qData1, [pDstBot @64], iPlaneStep
BGT Ver8Loop0
SUBS Temp, Temp, #16
BGT Hor8Loop00
EndAlignedLoop
ADD Temp, pSrcDstPlane, iFrameWidth
SUB pDstRight, Temp, Offset
SUB pRight, Temp, #1
SUB pDstLeft, pSrcDstPlane, Offset
SUB pDstLeft, pDstLeft, iExpandPels
ADD pLeft, pSrcDstPlane, #0
VLD1 {dData0 []}, [pLeft], iPlaneStep ;// Top-Left corner pixel from frame duplicated in dData0
SUB Offset, iPlaneStep, iExpandPels
VLD1 {dData1 []}, [pRight], iPlaneStep ;// Top-Right corner pixel from frame duplicated in dData1
MOV Temp, iExpandPels
;//
;// Copy top-left and top-right region of the plane as follows
;// top-left region = top-left corner pixel from the frame
;// top-right region = top-right corner pixel from the frame
;//
HorLoop11
MOV Counter, iExpandPels
VerLoop1
VST1 dData0, [pDstLeft], #8
SUBS Counter, Counter, #8
VST1 dData1, [pDstRight], #8
BGT VerLoop1
SUBS Temp, Temp, #1
ADD pDstLeft, pDstLeft, Offset
ADD pDstRight, pDstRight, Offset
BPL HorLoop11
SUB iFrameHeight, iFrameHeight, #1
;//
;// Copy left and right region of the plane as follows
;// Left region = copy the row with left start pixel from the frame
;// Right region = copy the row with right end pixel from the frame
;//
HorLoop22
VLD1 {dData0 []}, [pLeft], iPlaneStep
MOV Counter, iExpandPels
VLD1 {dData1 []}, [pRight], iPlaneStep
VerLoop2
VST1 dData0, [pDstLeft], #8
SUBS Counter, Counter, #8
VST1 dData1, [pDstRight], #8
BGT VerLoop2
SUBS iFrameHeight, iFrameHeight, #1
ADD pDstLeft, pDstLeft, Offset
ADD pDstRight, pDstRight, Offset
BGT HorLoop22
MOV Temp, iExpandPels
;//
;// Copy bottom-left and bottom-right region of the plane as follows
;// bottom-left region = bottom-left corner pixel from the frame
;// bottom-right region = bottom-right corner pixel from the frame
;//
HorLoop33
MOV Counter, iExpandPels
VerLoop3
VST1 dData0, [pDstLeft], #8
SUBS Counter, Counter, #8
VST1 dData1, [pDstRight], #8
BGT VerLoop3
SUBS Temp, Temp, #1
ADD pDstLeft, pDstLeft, Offset
ADD pDstRight, pDstRight, Offset
BGT HorLoop33
End
MOV r0, #OMX_Sts_NoErr
M_END
ENDIF
;// Guarding implementation by the processor name
END
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