Initial revision
svn-id: r3495
This commit is contained in:
Vasyl Tsvirkunov
parent
39939b50c2
commit
cff30724fb
24 changed files with 4758 additions and 0 deletions
319
wince/screen.cpp
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319
wince/screen.cpp
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/* (C) 2001 Vasyl Tsvirkunov */
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#include <windows.h>
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#include "gx.h"
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#include "screen.h"
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#define SMOOTH
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#define MAX_CLR 0x100
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#ifdef SMOOTH
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static UBYTE palRed[MAX_CLR];
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static UBYTE palGreen[MAX_CLR];
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static UBYTE palBlue[MAX_CLR];
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#endif
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static unsigned short pal[MAX_CLR];
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GXDisplayProperties gxdp;
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int active;
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struct tScreenGeometry
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{
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long width;
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long height;
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long startoffset;
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long sourceoffset;
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long linestep;
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long pixelstep;
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long xSkipMask;
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long xLimit;
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long lineLimit;
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};
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tScreenGeometry geom[3];
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int currentScreenMode = 0;
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int useMode = 0;
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int maxMode = 2;
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void SetScreenMode(int mode)
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{
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currentScreenMode = mode;
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if(currentScreenMode > maxMode)
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currentScreenMode = 0;
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}
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int GetScreenMode()
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{
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return currentScreenMode;
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}
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void GraphicsSuspend()
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{
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if(active)
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{
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active = 0;
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GXSuspend();
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}
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}
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void GraphicsResume()
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{
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if(!active)
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{
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active = 1;
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GXResume();
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}
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}
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void GraphicsOff(void)
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{
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GXCloseDisplay();
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active = 0;
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}
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int GraphicsOn(HWND hWndMain)
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{
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GXOpenDisplay(hWndMain, GX_FULLSCREEN);
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gxdp = GXGetDisplayProperties();
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if((gxdp.ffFormat & (kfDirect555 | kfDirect565)) == 0 || gxdp.cxWidth < 240 || gxdp.cyHeight < 240)
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{
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GraphicsOff();
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return 1;
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}
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// portrait
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geom[0].width = gxdp.cxWidth; // 240
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geom[0].height = gxdp.cyHeight; // 320
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geom[0].startoffset = 0;
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geom[0].sourceoffset = 0;
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geom[0].linestep = gxdp.cbyPitch;
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geom[0].pixelstep = gxdp.cbxPitch;
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geom[0].xSkipMask = gxdp.cxWidth < 320 ? 0x00000003 : 0xffffffff;
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geom[0].xLimit = 320; // skip 1/4
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geom[0].lineLimit = 320*200;
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// left handed landscape
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geom[1].width = gxdp.cyHeight; // 320
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geom[1].height = gxdp.cxWidth; // 240
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geom[1].startoffset = gxdp.cbyPitch*(gxdp.cyHeight-1);
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geom[1].sourceoffset = 0;
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geom[1].linestep = gxdp.cbxPitch;
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geom[1].pixelstep = -gxdp.cbyPitch;
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geom[1].xSkipMask = 0xffffffff;
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geom[1].xLimit = 320; // no skip
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geom[1].lineLimit = 320*200;
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// right handed landscape
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geom[2].width = gxdp.cyHeight; // 320
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geom[2].height = gxdp.cxWidth; // 240
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geom[2].startoffset = gxdp.cbxPitch*(gxdp.cxWidth-1);
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geom[2].sourceoffset = 0;
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geom[2].linestep = -gxdp.cbxPitch;
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geom[2].pixelstep = gxdp.cbyPitch;
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geom[2].xSkipMask = 0xffffffff;
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geom[2].xLimit = 320; // no skip
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geom[2].lineLimit = 320*200;
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if(gxdp.cyHeight < 320)
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maxMode = 0; // portrait only!
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active = 1;
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return 0;
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}
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void SetPalEntry(int ent, UBYTE r, UBYTE g, UBYTE b)
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{
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if (ent >= MAX_CLR)
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return;
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#ifdef SMOOTH
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palRed[ent] = r;
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palGreen[ent] = g;
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palBlue[ent] = b;
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#endif
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if(gxdp.ffFormat & kfDirect565)
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pal[ent] = ((r&0xf8)<<(11-3))|((g&0xfc)<<(5-2))|((b&0xf8)>>3);
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else if(gxdp.ffFormat & kfDirect555)
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pal[ent] = ((r&0xf8)<<(10-3))|((g&0xf8)<<(5-2))|((b&0xf8)>>3);
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}
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void Cls()
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{
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int x, y;
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UBYTE* dst;
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UBYTE *scraddr;
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scraddr = (UBYTE*)GXBeginDraw();
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if(scraddr)
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{
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for(y=0; y<geom[useMode].height; y++)
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{
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dst = scraddr+geom[useMode].startoffset;
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for(x=0; x<geom[useMode].width; x++)
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{
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*(unsigned short*)dst = 0;
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dst += geom[useMode].pixelstep;
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}
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scraddr += geom[useMode].linestep;
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}
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GXEndDraw();
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}
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}
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int counter = 0;
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void Blt(UBYTE * scr_ptr)
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{
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static UBYTE *src;
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static UBYTE *dst;
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static UBYTE *scraddr;
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static UBYTE *scr_ptr_limit;
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static UBYTE *src_limit;
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static long pixelstep;
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static long linestep;
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static long skipmask;
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#ifdef SMOOTH
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static bool b565 = (gxdp.ffFormat & kfDirect565);
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#endif
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if(!active)
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{
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Sleep(100);
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return;
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}
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/* Update screen mode, also thread protection by doing this */
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if(useMode != currentScreenMode)
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{
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useMode = currentScreenMode;
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Cls();
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}
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scraddr = (UBYTE*)GXBeginDraw();
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if(scraddr)
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{
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scraddr += geom[useMode].startoffset;
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scr_ptr += geom[useMode].sourceoffset;
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scr_ptr_limit = scr_ptr + geom[useMode].lineLimit;
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pixelstep = geom[useMode].pixelstep;
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linestep = geom[useMode].linestep;
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src_limit = scr_ptr + geom[useMode].xLimit;
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skipmask = geom[useMode].xSkipMask;
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/* Internal pixel loops */
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#ifdef SMOOTH
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if(skipmask == 3)
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{
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while(scr_ptr < scr_ptr_limit)
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{
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src = scr_ptr;
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dst = scraddr;
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while(src < src_limit)
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{
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UBYTE r, g, b;
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r = (3*palRed[*(src+0)] + palRed[*(src+1)])>>2;
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g = (3*palGreen[*(src+0)] + palGreen[*(src+1)])>>2;
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b = (3*palBlue[*(src+0)] + palBlue[*(src+1)])>>2;
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if(b565)
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*(unsigned short*)dst = ((r&0xf8)<<(11-3))|((g&0xfc)<<(5-2))|((b&0xf8)>>3);
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else
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*(unsigned short*)dst = ((r&0xf8)<<(10-3))|((g&0xf8)<<(5-2))|((b&0xf8)>>3);
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dst += pixelstep;
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r = (palRed[*(src+1)] + palRed[*(src+2)])>>1;
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g = (palGreen[*(src+1)] + palGreen[*(src+2)])>>1;
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b = (palBlue[*(src+1)] + palBlue[*(src+2)])>>1;
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if(b565)
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*(unsigned short*)dst = ((r&0xf8)<<(11-3))|((g&0xfc)<<(5-2))|((b&0xf8)>>3);
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else
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*(unsigned short*)dst = ((r&0xf8)<<(10-3))|((g&0xf8)<<(5-2))|((b&0xf8)>>3);
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dst += pixelstep;
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r = (palRed[*(src+2)] + 3*palRed[*(src+3)])>>2;
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g = (palGreen[*(src+2)] + 3*palGreen[*(src+3)])>>2;
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b = (palBlue[*(src+2)] + 3*palBlue[*(src+3)])>>2;
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if(b565)
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*(unsigned short*)dst = ((r&0xf8)<<(11-3))|((g&0xfc)<<(5-2))|((b&0xf8)>>3);
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else
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*(unsigned short*)dst = ((r&0xf8)<<(10-3))|((g&0xf8)<<(5-2))|((b&0xf8)>>3);
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dst += pixelstep;
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src += 4;
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}
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scraddr += linestep;
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scr_ptr += 320;
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src_limit += 320;
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}
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}
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else
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#endif
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if(skipmask != 0xffffffff)
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{
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while(scr_ptr < scr_ptr_limit)
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{
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src = scr_ptr;
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dst = scraddr;
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while(src < src_limit)
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{
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if((long)src & skipmask)
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{
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*(unsigned short*)dst = pal[*src];
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dst += pixelstep;
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}
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src ++;
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}
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scraddr += linestep;
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scr_ptr += 320;
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src_limit += 320;
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}
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}
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else
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{
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while(scr_ptr < scr_ptr_limit)
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{
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src = scr_ptr;
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dst = scraddr;
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while(src < src_limit)
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{
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*(unsigned short*)dst = pal[*src];
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dst += pixelstep;
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src ++;
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}
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scraddr += linestep;
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scr_ptr += 320;
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src_limit += 320;
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}
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}
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GXEndDraw();
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}
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}
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void Translate(int* px, int* py)
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{
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int x, y;
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switch(currentScreenMode)
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{
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case 0: /* portrait */
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*px = *px*4/3;
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break;
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case 1: /* landscape left */
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x = 320 - *py;
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y = *px;
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*px = x;
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*py = y;
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break;
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case 2: /* landscape right */
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x = *py;
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y = 240 - *px;
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*px = x;
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*py = y;
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break;
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}
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}
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