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blit_sh3_gray.c
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:7k
源码类别:
Windows CE
开发平台:
C/C++
- /*****************************************************************************
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * $Id: blit_sh3_gray.c 271 2005-08-09 08:31:35Z picard $
- *
- * The Core Pocket Media Player
- * Copyright (c) 2004-2005 Gabor Kovacs
- *
- ****************************************************************************/
- #include "../common.h"
- #include "../dyncode/dyncode.h"
- #include "blit_soft.h"
- #if defined(SH3)
- typedef struct stack
- {
- int EndOfRect;
- int DstNext;
- int SrcNext;
- int AdjWidth;
- int StackFrame[7];
- void* This; //R4
- char* Dst; //R5
- char* Src; //R6
- int DstPitch; //R7
- int SrcPitch;
- int Width;
- int Height;
- int Src2SrcLast;
- } stack;
- void Fix_Gray_UV(blit_soft* p)
- {
- int SrcBlock2;
- bool_t Invert = (p->Dst.Flags & PF_INVERTED) != 0;
- int DitherMask = (1 << (8 - p->DstBPP))-1;
- int ValueMask = 255 - DitherMask;
- int Count = 8 / p->DstBPP;
- int DstRows = (p->DstDoubleY && !(p->SwapXY)) ? 2:1;
- int SrcRows = (p->SwapXY) ? (Count >> p->DstDoubleX) : 1;
- int n;
- dyninst* LoopY;
- dyninst* LoopX;
- p->DstAlignPos = 4;
- p->DstAlignSize = 4;
- p->Caps = VC_BRIGHTNESS|VC_DITHER;
- CodeBegin(7,OFS(stack,StackFrame));
- I2(MOVL_LD,R5,R2); //Dst[0]
- I2(MOVL_LD,R6,R4); //Src[0]
- I2(MOV,R7,R8);
- I1C(MOVI,R0,OFS(stack,This));
- I2(ADD,SP,R0);
- I2C(MOVL_LDOFS,R0,R14,OFS(stack,SrcPitch)-OFS(stack,This)); //SrcPitch
- I2C(MOVL_LDOFS,R0,R7,OFS(stack,Height)-OFS(stack,This));
- I2C(MOVL_LDOFS,R0,R1,OFS(stack,Width)-OFS(stack,This));
- if (p->SwapXY)
- {
- SrcBlock2 = -p->DstBPP2 - p->DstDoubleX;
- //EndOfRect = Dst + (Height * DstBPP * DirX) >> 3;
- I1C(MOVI,R9,p->DstBPP * p->DirX);
- I2(MULL,R7,R9);
- I1C(MOVI,R9,-3);
- I1(STS_MACL,R7);
- I2(SHAD,R9,R7);
- I2(ADD,R2,R7);
- I2C(MOVL_STOFS,R7,SP,OFS(stack,EndOfRect));
- //DstNext = DirX - Width * DstPitch;
- I2(MULL,R1,R8);
- I1C(MOVI,R9,p->DirX);
- I1(STS_MACL,R7);
- I2(SUB,R7,R9);
- I2C(MOVL_STOFS,R9,SP,OFS(stack,DstNext));
- }
- else
- {
- SrcBlock2 = 0;
- //EndOfRect = Dst + DstPitch * Height
- I2(MULL,R7,R8);
- I1(STS_MACL,R7);
- I2(ADD,R2,R7);
- I2C(MOVL_STOFS,R7,SP,OFS(stack,EndOfRect));
- //DstNext = (DstPitch << DstDoubleY) - DirX * (Width >> -DstBPP2);
- I1C(MOVI,R7,p->DstBPP2);
- I2(MOV,R1,R9);
- I2(SHAD,R7,R9);
- I2(MOV,R8,R7);
- if (p->DstDoubleY) I1(SHLL,R7);
- I2(p->DirX>0 ? SUB:ADD,R9,R7);
- I2C(MOVL_STOFS,R7,SP,OFS(stack,DstNext));
- }
- //SrcNext = (SrcPitch << SrcBlock2) - (Width >> SrcDoubleX);
- I2(MOV,R14,R7);
- if (SrcBlock2)
- {
- I1C(MOVI,R9,SrcBlock2);
- I2(SHLD,R9,R7);
- }
- I2(MOV,R1,R9);
- if (p->SrcDoubleX) I1(SHLR,R9);
- I2(SUB,R9,R7);
- I2C(MOVL_STOFS,R7,SP,OFS(stack,SrcNext));
- if (p->FX.Flags & BLITFX_DITHER)
- I1C(MOVI,R13,DitherMask >> 1); //Y0
- for (n=1;n<SrcRows;++n)
- {
- I2(MOV,(reg)(R4+n-1),(reg)(R4+n));
- I2(ADD,R14,(reg)(R4+n));
- }
- for (n=1;n<DstRows;++n)
- {
- I2(MOV,(reg)(R2+n-1),(reg)(R2+n));
- I2(ADD,R8,(reg)(R2+n));
- }
- if (p->SwapXY)
- {
- I2(MULL,R1,R8); //width*dstpitch
- I1(STS_MACL,R1);
- }
- else
- {
- if (p->DirX < 0)
- I2(NEG,R1,R1);
- I1C(MOVI,R7,p->DstBPP2);
- I2(SHAD,R7,R1);
- }
- I2C(MOVL_STOFS,R1,SP,OFS(stack,AdjWidth));
- I1C(MOVI,R0,(int8_t)ValueMask);
- I2(EXTUB,R0,R9);
- if (p->FX.Flags & BLITFX_DITHER)
- I1C(MOVI,R10,DitherMask);
- LoopY = Label(1);
- I2C(MOVL_LDOFS,SP,R1,OFS(stack,AdjWidth));
- I2(ADD,R2,R1); //end of line
- //R0 temp
- //R12 temp
- //R13 dither
- //R14 out
- //R11 out2 (doubley)
- //R1 Endofline
- //R2 Dst
- //R3 Dst2 (doubley)
- //R4 Src
- //R5 Src2 (Swap)
- //R6 Src3 (Swap)
- //R7 Src4 (Swap)
- //R8 DstPitch
- //R9 ValueMask
- //R10 DitherMask
- LoopX = Label(1);
- {
- for (n=0;n<Count;++n)
- {
- int Pos;
- reg Y;
- bool_t Reverse;
- reg Tmp;
- if (p->SwapXY)
- {
- switch ((Count-1-n) >> p->DstDoubleX)
- {
- case 0: I2(MOVB_LD,R4,R0); break;
- case 1: I2(MOVB_LD,R5,R0); break;
- case 2: I2(MOVB_LD,R6,R0); break;
- case 3: I2(MOVB_LD,R7,R0); break;
- }
- }
- else
- I1C(MOVB_LDOFS,R4,n >> p->DstDoubleX);
- I2(EXTUB,R0,R0);
- Y=R0;
- if (p->FX.Flags & BLITFX_DITHER)
- {
- I2(ADD,R0,R13);
- Y = R13;
- }
- I1C(ADDI,Y,p->FX.Brightness-16);
- I2(MOV,Y,R12);
- I1(SHLR16,R12);
- I2(SHLD,R12,Y);
- I2(MOV,Y,R12);
- I1(SHLR8,R12);
- I2(NEG,R12,R12);
- I2(OR,R12,Y);
- Reverse = (p->DirX>0) ^ ((p->SwapXY)!=0);
- Pos = Reverse ? n*p->DstBPP : (8-(n+1)*p->DstBPP);
- Tmp = R12;
- if (!Invert && n==0 && Pos==0)
- Tmp = R14;
- I2(MOV,Y,Tmp);
- I2(AND,R9,Tmp);
- if (Pos)
- {
- I1C(MOVI,R0,-Pos);
- I2(SHLD,R0,Tmp);
- }
- if (n==0)
- {
- if (Invert || Pos)
- I2(Invert ? NOT:MOV,Tmp,R14);
- }
- else
- I2(XOR,Tmp,R14);
- if (p->DstDoubleY)
- {
- int Pos2 = Reverse ? (n^p->DstDoubleX)*p->DstBPP : (8-((n^p->DstDoubleX)+1)*p->DstBPP);
- if (Tmp != R12)
- I2(MOV,Tmp,R12);
- I1C(MOVI,R0,Pos-Pos2);
- I2(SHLD,R0,R12);
- if (n==0)
- I2(Invert ? NOT:MOV,R12,R11);
- else
- I2(XOR,R12,R11);
- }
- if (p->FX.Flags & BLITFX_DITHER)
- I2(AND,R10,R13);
- }
- if (p->DstDoubleY)
- {
- MB();
- if (p->SwapXY)
- {
- I2(MOVB_ST,R11,R2);
- I2(ADD,R8,R2);
- }
- else
- {
- I2(MOVB_ST,R11,R3);
- I1C(ADDI,R3,p->DirX>0 ? 1:-1);
- }
- }
- MB(); I2(MOVB_ST,R14,R2);
- if (p->SwapXY)
- {
- I2(ADD,R8,R2);
- for (n=0;n<SrcRows;++n)
- I1C(ADDI,(reg)(R4+n),1);
- }
- else
- {
- I1C(ADDI,R2,p->DirX>0 ? 1:-1);
- I1C(ADDI,R4,Count >> p->DstDoubleX);
- }
- MB(); I2(CMPEQ,R2,R1); // has to go back at least one instruction (because of delay slot)
- DS(); I0P(BFS,LoopX);
- }
- //increment pointers
- I2C(MOVL_LDOFS,SP,R0,OFS(stack,DstNext));
- I2C(MOVL_LDOFS,SP,R1,OFS(stack,SrcNext));
- I2C(MOVL_LDOFS,SP,R12,OFS(stack,EndOfRect));
- for (n=0;n<DstRows;++n)
- I2(ADD,R0,(reg)(R2+n));
- for (n=0;n<SrcRows;++n)
- I2(ADD,R1,(reg)(R4+n));
- MB(); I2(CMPEQ,R2,R12); // has to go back at least one instruction (because of delay slot)
- DS(); I0P(BFS,LoopY);
- CodeEnd(7,OFS(stack,StackFrame));
- }
- #endif