541 lines
12 KiB
C
541 lines
12 KiB
C
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/*****************************************************************************
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*
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* This program is free software ; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: blit_arm_half.c 543 2006-01-07 22:06:24Z picard $
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*
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* The Core Pocket Media Player
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* Copyright (c) 2004-2005 Gabor Kovacs
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*
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****************************************************************************/
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#include "../common.h"
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#include "../dyncode/dyncode.h"
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#include "blit_soft.h"
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// DstAlignSize 4
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// DstAlignPos 4
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// SrcAlignPos 2
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#if defined(ARM)
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typedef struct stack
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{
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int EndOfLine;
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int EndOfRect;
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int DstPitch;
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int DstNext;
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int SrcNext;
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int UVNext;
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int StackFrame[STACKFRAME];
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//void* this R0
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//char* Dst R1
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//char* Src R2
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//int DstPitch R3 can be signed
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int SrcPitch; //can be signed
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int Width;
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int Height;
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int Src2SrcLast;
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} stack;
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// R0 result RGB
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// R1..R3 R,G,B accumulator
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// R4..R6 temporary
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// R7 EndOfLine
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// R8 DstPitch
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// R9 Dst
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// R10 U
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// R11 V
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// R12 Y
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// R14 UVPitch (same as YPitch/2)
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static NOINLINE void Half_RGB_UV_Pixel(blit_soft* p, int No)
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{
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bool_t NextSub;
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bool_t NextX;
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int SatBit = p->QAdd ? 32 : 24;
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int RPos = p->DstPos[0];
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int GPos = p->DstPos[1];
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int BPos = p->DstPos[2];
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int NextLoad;
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// 3 <- 2
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// | ^
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// v |
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// 0 -> 1
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switch (No)
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{
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default:
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case 0: NextSub = 0; NextX = 1; p->Upper = 0; break;
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case 1: NextSub = 1; NextX = 0; p->Upper = 1; break;
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case 2: NextSub = 1; NextX = 1; p->Upper = 1; break;
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case 3: NextSub = 0; NextX = 0; p->Upper = 0; break;
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}
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if (p->DirX<0)
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p->Upper = !p->Upper;
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if (p->SwapXY)
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{
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if (!NextX) NextSub = !NextSub;
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NextX = !NextX;
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}
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if (p->Upper && p->DstBPP<=16)
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{
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RPos += p->DstBPP;
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GPos += p->DstBPP;
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BPos += p->DstBPP;
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}
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if (p->FX.Flags & BLITFX_DITHER)
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{
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IConst(R4,p->_RAdd);
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IConst(R5,p->_GAdd);
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IConst(R6,p->_BAdd);
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I3S(ADD,R1,R4,R1,LSR,32-SatBit+p->DstSize[0]);
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I3S(ADD,R2,R5,R2,LSR,32-SatBit+p->DstSize[1]);
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I3S(ADD,R3,R6,R3,LSR,32-SatBit+p->DstSize[2]);
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}
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else
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{
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IConst(R1,p->_RAdd);
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IConst(R2,p->_GAdd);
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IConst(R3,p->_BAdd);
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}
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NextLoad = NextSub ? LDR_POSTSUB : LDR_POST;
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if (p->ArithStretch)
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{
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// sum a 2x2 block of Y
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if (NextX)
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{
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MB(); Byte(); I3S(LDR_POST,R4,R12,R14,LSL,1); //y00
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MB(); Byte(); I2C(LDR_POST,R6,R12,1); //y10
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MB(); Byte(); I3S(LDR_POSTSUB,R5,R12,R14,LSL,1); //y11
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I3(ADD,R4,R4,R6);
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Byte(); I2C(NextLoad,R6,R12,NextSub?3:1); //y01
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I3(ADD,R4,R4,R5);
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I3(ADD,R4,R4,R6);
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}
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else
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{
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MB(); Byte(); I2C(LDR_POST,R4,R12,1); //y00
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MB(); Byte(); I3S(LDR_POST,R6,R12,R14,LSL,1); //y01
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MB(); Byte(); I2C(LDR_POSTSUB,R5,R12,1); //y11
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I3(ADD,R4,R4,R6);
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Byte(); I3S(NextLoad,R6,R12,R14,LSL,1); //y10
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I3(ADD,R4,R4,R5);
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if (NextSub) I3S(SUB,R12,R12,R14,LSL,2);
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I3(ADD,R4,R4,R6);
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}
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MB(); IConst(R5,p->_YMul >> 2);
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}
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else
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{
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MB(); Byte();
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if (NextX)
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I2C(NextLoad,R4,R12,2); //y
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else
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I3S(NextLoad,R4,R12,R14,LSL,2); //y
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IConst(R5,p->_YMul);
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}
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I4(MLA,R1,R5,R4,R1);
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I4(MLA,R2,R5,R4,R2);
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I4(MLA,R3,R5,R4,R3);
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if (NextX)
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{
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MB(); Byte(); I2C(NextLoad,R6,R11,1); //v
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MB(); Byte(); I2C(NextLoad,R4,R10,1); //u
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}
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else
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{
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MB(); Byte(); I3(NextLoad,R6,R11,R14); //v
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MB(); Byte(); I3(NextLoad,R4,R10,R14); //u
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}
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IConst(R5,p->_GVMul);
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I4(MLA,R2,R5,R6,R2);
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IConst(R5,p->_RVMul);
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I4(MLA,R1,R5,R6,R1);
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IConst(R5,p->_GUMul);
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I4(MLA,R2,R5,R4,R2);
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IConst(R5,p->_BUMul);
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I4(MLA,R3,R5,R4,R3);
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if (p->QAdd)
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{
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I3(QDADD,R1,R1,R1);
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I3(QDADD,R2,R2,R2);
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I3(QDADD,R3,R3,R3);
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}
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else
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{
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I2C(TST,NONE,R1,0xFF000000);
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C(NE);I2C(MVN,R1,NONE,0xFF000000);
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C(MI);I2C(MOV,R1,NONE,0x00000000);
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I2C(TST,NONE,R2,0xFF000000);
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C(NE);I2C(MVN,R2,NONE,0xFF000000);
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C(MI);I2C(MOV,R2,NONE,0x00000000);
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I2C(TST,NONE,R3,0xFF000000);
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C(NE);I2C(MVN,R3,NONE,0xFF000000);
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C(MI);I2C(MOV,R3,NONE,0x00000000);
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}
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if (p->InvertMask && p->Pos<0)
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{
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p->Pos = RPos;
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MB(); I1P(LDR,R0,p->InvertMask,0);
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}
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if (p->Pos!=RPos && p->Pos>=0) I3S(MOV,R0,NONE,R0,ROR,RPos-p->Pos);
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I3S(p->Pos<0?MOV:EOR,R0,(reg)(p->Pos<0?NONE:R0),R1,LSR,SatBit-p->DstSize[0]);
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I3S(MOV,R5,NONE,R2,LSR,SatBit-p->DstSize[1]);
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I3S(MOV,R0,NONE,R0,ROR,BPos-RPos);
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I3S(EOR,R0,R0,R5,ROR,BPos-GPos);
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I3S(EOR,R0,R0,R3,LSR,SatBit-p->DstSize[2]);
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p->Pos = BPos;
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if (p->FX.Flags & BLITFX_DITHER)
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{
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MB(); I3S(MOV,R1,NONE,R1,LSL,32-SatBit+p->DstSize[0]);
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MB(); I3S(MOV,R2,NONE,R2,LSL,32-SatBit+p->DstSize[1]);
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MB(); I3S(MOV,R3,NONE,R3,LSL,32-SatBit+p->DstSize[2]);
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}
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}
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void Half_RGB_UV(blit_soft* p)
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{
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dyninst* LoopY;
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dyninst* LoopX;
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int Invert = 0;
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int Mask = 0;
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p->DstAlignPos = p->DstAlignSize = 4;
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p->DstStepX = p->DirX * ((p->DstBPP*2) >> 3);
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p->PalPtr = NULL;
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p->DiffMask = NULL;
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p->InvertMask = NULL;
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if (p->Dst.Flags & PF_INVERTED)
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Invert = -1;
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if (p->QAdd)
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{
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int Mask2;
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int i,Shift;
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for (i=0;i<3;++i)
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Mask |= 1 << (p->DstPos[i] + p->DstSize[i] - 1);
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Mask2 = Mask;
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Shift = 0;
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if (p->DstBPP <= 16)
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{
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if (p->DirX<0) Shift = p->DstBPP;
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Mask2 |= Mask << p->DstBPP;
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}
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Invert ^= RotateRight(Mask2,Shift+p->DstPos[0]);
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}
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if (Invert)
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p->InvertMask = InstCreate32(Invert,NONE,NONE,NONE,0,0);
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if (p->OnlyDiff)
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{
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int Mask = 0x03030303;
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if (!p->ArithStretch)
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Mask &= ~0x00FF0000; //lose Y3
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p->DiffMask = InstCreate32(Mask,NONE,NONE,NONE,0,0);
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}
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CodeBegin();
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I2C(SUB,SP,SP,OFS(stack,StackFrame));
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I2C(LDR,R9,R1,0); //Dst[0] RGB
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I2C(LDR,R10,R2,4); //Src[1] U
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I2C(LDR,R11,R2,8); //Src[2] V
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I2C(LDR,R12,R2,0); //Src[0] Y
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I2C(STR,R3,SP,OFS(stack,DstPitch));
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I3(MOV,R8,NONE,R3); //DstPitch
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I2C(LDR,R14,SP,OFS(stack,SrcPitch));
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I2C(LDR,R0,SP,OFS(stack,Height));
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I2C(LDR,R4,SP,OFS(stack,Width));
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//SrcNext = 4*Src->Pitch - (Width << 1)
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I3S(MOV,R1,NONE,R14,LSL,2);
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I3S(SUB,R1,R1,R4,LSL,1);
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I2C(STR,R1,SP,OFS(stack,SrcNext));
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//UVNext = (Src->Pitch) - (Width << 1 >> 1);
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I3(SUB,R2,R14,R4);
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I2C(STR,R2,SP,OFS(stack,UVNext));
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I3S(MOV,R14,NONE,R14,ASR,1);
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if (p->DirX<0 && p->DstBPP==16) //adjust reversed destination for block size
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I2C(SUB,R9,R9,-p->DstStepX-(p->DstBPP >> 3));
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if (p->SwapXY)
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{
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//EndOfRect = Dst + (Height * DstBPP * DirX) >> 3;
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I2C(MOV,R1,NONE,p->DstBPP * p->DirX);
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I3(MUL,R0,R1,R0);
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I3S(ADD,R0,R9,R0,ASR,3);
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I2C(STR,R0,SP,OFS(stack,EndOfRect));
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//DstNext = DstStepX - Width*DstPitch;
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MB(); I3(MUL,R2,R8,R4);
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I2C(MOV,R0,NONE,p->DstStepX);
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I3(SUB,R0,R0,R2);
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I2C(STR,R0,SP,OFS(stack,DstNext));
|
||
|
|
}
|
||
|
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else
|
||
|
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{
|
||
|
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//EndOfRect = Dst + DstPitch * Height
|
||
|
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I3(MUL,R0,R8,R0);
|
||
|
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I3(ADD,R0,R9,R0);
|
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|
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I2C(STR,R0,SP,OFS(stack,EndOfRect));
|
||
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|
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//DstNext = DstPitch*2 - DirX * Width << DstBPP2;
|
||
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I3S(MOV,R2,NONE,R8,LSL,1);
|
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I3S(p->DirX>0?SUB:ADD,R2,R2,R4,LSL,p->DstBPP2);
|
||
|
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I2C(STR,R2,SP,OFS(stack,DstNext));
|
||
|
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}
|
||
|
|
|
||
|
|
if (p->FX.Flags & BLITFX_DITHER)
|
||
|
|
{
|
||
|
|
I2C(MVN,R1,NONE,0x80000000);
|
||
|
|
I2C(MVN,R2,NONE,0x80000000);
|
||
|
|
I2C(MVN,R3,NONE,0x80000000);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!p->SwapXY) // starting in second row
|
||
|
|
{
|
||
|
|
I3(ADD,R10,R10,R14);
|
||
|
|
I3(ADD,R11,R11,R14);
|
||
|
|
I3S(ADD,R12,R12,R14,LSL,2);
|
||
|
|
}
|
||
|
|
|
||
|
|
// R8 DstPitch
|
||
|
|
// R4 Width
|
||
|
|
|
||
|
|
LoopY = Label(1);
|
||
|
|
|
||
|
|
if (p->SwapXY)
|
||
|
|
{
|
||
|
|
I3(MUL,R4,R8,R4); //R8=dstpitch
|
||
|
|
I3(ADD,R7,R9,R4);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (p->DirX > 0)
|
||
|
|
I3S(ADD,R7,R9,R4,LSL,p->DstBPP2);
|
||
|
|
else
|
||
|
|
I3S(SUB,R7,R9,R4,LSL,p->DstBPP2);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (p->OnlyDiff)
|
||
|
|
{
|
||
|
|
if (p->FX.Flags & BLITFX_DITHER)
|
||
|
|
I2C(STR,R7,SP,OFS(stack,EndOfLine)); //needed for restoring
|
||
|
|
MB(); I1P(LDR,R5,p->DiffMask,0);
|
||
|
|
MB(); I2C(LDR,R6,SP,OFS(stack,Src2SrcLast));
|
||
|
|
p->Skip = Label(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
LoopX = Label(1);
|
||
|
|
{
|
||
|
|
if (p->OnlyDiff)
|
||
|
|
{
|
||
|
|
// R0 temp
|
||
|
|
// R1..R3 R,G,B accumulator (if dither)
|
||
|
|
// R4 temp
|
||
|
|
// R5 DiffMask
|
||
|
|
// R6 Src2SrcLast
|
||
|
|
// R7 EndOfLine
|
||
|
|
// R8 DstPitch
|
||
|
|
// R9 Dst
|
||
|
|
// R10 U (second row when not SwapXY)
|
||
|
|
// R11 V (second row when not SwapXY)
|
||
|
|
// R12 Y (second double row when not SwapXY)
|
||
|
|
// R14 UVPitch (same as YPitch/2)
|
||
|
|
|
||
|
|
int LoadSub = p->SwapXY?LDR_POST:LDR_POSTSUB;
|
||
|
|
int LoadAdd = p->SwapXY?LDR_POSTSUB:LDR_POST;
|
||
|
|
reg RA=R0,RB=R4,RC,RD;
|
||
|
|
|
||
|
|
if (p->FX.Flags & BLITFX_DITHER)
|
||
|
|
{
|
||
|
|
RC=R7; //will be restored
|
||
|
|
RD=R8; //will be restored
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
RC=R1;
|
||
|
|
RD=R2;
|
||
|
|
}
|
||
|
|
|
||
|
|
I3(LDR,RA,R12,R6);
|
||
|
|
I3S(LoadSub,RB,R12,R14,LSL,2);
|
||
|
|
I3(EOR,RA,RA,RB);
|
||
|
|
|
||
|
|
if (p->ArithStretch)
|
||
|
|
{
|
||
|
|
MB(); I3(LDR,RC,R12,R6);
|
||
|
|
MB(); I3S(LDR_POST,RD,R12,R14,LSL,1);
|
||
|
|
I3(EOR,RC,RC,RD);
|
||
|
|
I3(ORR,RA,RA,RC);
|
||
|
|
|
||
|
|
MB(); I3(LDR,RB,R12,R6);
|
||
|
|
MB(); I3S(LoadAdd,RD,R12,R14,LSL,2);
|
||
|
|
I3(EOR,RB,RB,RD);
|
||
|
|
I3(ORR,RA,RA,RB);
|
||
|
|
|
||
|
|
MB(); I3(LDR,RC,R12,R6);
|
||
|
|
MB(); I3S(LDR_POSTSUB,RD,R12,R14,LSL,1);
|
||
|
|
I3(EOR,RC,RC,RD);
|
||
|
|
I3(ORR,RA,RA,RC);
|
||
|
|
|
||
|
|
I3S(BIC,RA,RA,R5,LSL,1); //lose 1 bit from Y (additionaly to DiffMask)
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
MB(); I3(LDR,RC,R12,R6);
|
||
|
|
MB(); I3S(LoadAdd,RD,R12,R14,LSL,2);
|
||
|
|
I3(EOR,RC,RC,RD);
|
||
|
|
I3(ORR,RA,RA,RC);
|
||
|
|
|
||
|
|
I2C(BIC,RA,RA,0xFF00); //lose Y1 (Y3 is masked out in DiffMask already)
|
||
|
|
}
|
||
|
|
|
||
|
|
MB(); Half(); I3(LDR,RB,R10,R6);
|
||
|
|
MB(); Half(); I3(LoadSub,RD,R10,R14);
|
||
|
|
I3(EOR,RB,RB,RD);
|
||
|
|
I3(ORR,RA,RA,RB);
|
||
|
|
|
||
|
|
MB(); Half(); I3(LDR,RC,R10,R6);
|
||
|
|
MB(); Half(); I3(LoadAdd,RD,R10,R14);
|
||
|
|
I3(EOR,RC,RC,RD);
|
||
|
|
I3(ORR,RA,RA,RC);
|
||
|
|
|
||
|
|
MB(); Half(); I3(LDR,RB,R11,R6);
|
||
|
|
MB(); Half(); I3(LoadSub,RD,R11,R14);
|
||
|
|
I3(EOR,RB,RB,RD);
|
||
|
|
I3(ORR,RA,RA,RB);
|
||
|
|
|
||
|
|
MB(); Half(); I3(LDR,RC,R11,R6);
|
||
|
|
MB(); Half(); I3(LoadAdd,RD,R11,R14);
|
||
|
|
I3(EOR,RC,RC,RD);
|
||
|
|
I3(ORR,RA,RA,RC);
|
||
|
|
|
||
|
|
S(); I3(BIC,RA,RA,R5);
|
||
|
|
|
||
|
|
if (p->FX.Flags & BLITFX_DITHER) // restore R7,R8
|
||
|
|
{
|
||
|
|
MB(); I2C(LDR,R8,SP,OFS(stack,DstPitch));
|
||
|
|
MB(); I2C(LDR,R7,SP,OFS(stack,EndOfLine));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (p->SwapXY)
|
||
|
|
{
|
||
|
|
C(EQ); I3S(ADD,R9,R9,R8,LSL,1);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
C(EQ); I2C(ADD,R9,R9,p->DstStepX);
|
||
|
|
}
|
||
|
|
|
||
|
|
I0P(B,EQ,p->Skip);
|
||
|
|
}
|
||
|
|
|
||
|
|
p->Pos = -1;
|
||
|
|
|
||
|
|
Half_RGB_UV_Pixel(p,0);
|
||
|
|
|
||
|
|
Half_RGB_UV_Pixel(p,1);
|
||
|
|
if (p->Pos)
|
||
|
|
I3S(MOV,R0,NONE,R0,ROR,-p->Pos);
|
||
|
|
|
||
|
|
if (p->DstBPP==8) Half();
|
||
|
|
if (p->SwapXY)
|
||
|
|
I3(STR_POST,R0,R9,R8);
|
||
|
|
else
|
||
|
|
I3(STR,R0,R9,R8);
|
||
|
|
|
||
|
|
p->Pos = -1;
|
||
|
|
Half_RGB_UV_Pixel(p,2);
|
||
|
|
|
||
|
|
Half_RGB_UV_Pixel(p,3);
|
||
|
|
if (p->Pos)
|
||
|
|
I3S(MOV,R0,NONE,R0,ROR,-p->Pos);
|
||
|
|
|
||
|
|
if (p->DstBPP==8) Half();
|
||
|
|
if (p->SwapXY)
|
||
|
|
I3(STR_POST,R0,R9,R8);
|
||
|
|
else
|
||
|
|
I2C(STR_POST,R0,R9,p->DstStepX);
|
||
|
|
|
||
|
|
if (p->OnlyDiff)
|
||
|
|
{
|
||
|
|
MB(); I1P(LDR,R5,p->DiffMask,0);
|
||
|
|
MB(); I2C(LDR,R6,SP,OFS(stack,Src2SrcLast));
|
||
|
|
InstPost(p->Skip);
|
||
|
|
}
|
||
|
|
|
||
|
|
I3(CMP,NONE,R9,R7);
|
||
|
|
I2C(ADD,R12,R12,4);
|
||
|
|
I2C(ADD,R10,R10,2);
|
||
|
|
I2C(ADD,R11,R11,2);
|
||
|
|
I0P(B,NE,LoopX);
|
||
|
|
}
|
||
|
|
|
||
|
|
I2C(LDR,R0,SP,OFS(stack,SrcNext));
|
||
|
|
I2C(LDR,R4,SP,OFS(stack,DstNext));
|
||
|
|
I2C(LDR,R6,SP,OFS(stack,UVNext));
|
||
|
|
I2C(LDR,R5,SP,OFS(stack,EndOfRect));
|
||
|
|
|
||
|
|
//increment pointers
|
||
|
|
I3(ADD,R12,R12,R0);
|
||
|
|
I3(ADD,R9,R9,R4);
|
||
|
|
I3(ADD,R10,R10,R6);
|
||
|
|
I3(ADD,R11,R11,R6);
|
||
|
|
|
||
|
|
//prepare registers for next row
|
||
|
|
I2C(LDR,R4,SP,OFS(stack,Width));
|
||
|
|
|
||
|
|
I3(CMP,NONE,R9,R5);
|
||
|
|
I0P(B,NE,LoopY);
|
||
|
|
|
||
|
|
I2C(ADD,SP,SP,OFS(stack,StackFrame));
|
||
|
|
CodeEnd();
|
||
|
|
|
||
|
|
if (p->InvertMask) InstPost(p->InvertMask);
|
||
|
|
if (p->DiffMask) InstPost(p->DiffMask);
|
||
|
|
if (p->PalPtr) InstPost(p->PalPtr);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|