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asm for DrawStripVSRam

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@223 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-08-21 16:53:54 +00:00
parent d524c827cd
commit 6d7acf9eff
2 changed files with 154 additions and 31 deletions
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17
Pico/Draw.c
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@ -34,7 +34,7 @@ static int SpriteBlocks;
struct TileStrip
{
int nametab; // Position in VRAM of name table (for this tile line)
int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap
int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap
int hscroll; // Horizontal scroll value in pixels for the line
int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap
int *hc; // cache for high tile codes and their positions
@ -317,12 +317,8 @@ static void DrawStrip(struct TileStrip *ts, int sh)
// terminate the cache list
*ts->hc = 0;
}
#endif
// this is messy
#ifndef _ASM_DRAW_C
static
#endif
void DrawStripVSRam(struct TileStrip *ts, int plane)
{
int tilex=0,dx=0,ty=0,code=0,addr=0,cell=0,nametabadd=0;
@ -386,6 +382,7 @@ void DrawStripVSRam(struct TileStrip *ts, int plane)
// terminate the cache list
*ts->hc = 0;
}
#endif
#ifndef _ASM_DRAW_C
static
@ -921,13 +918,13 @@ static void PrepareSprites(int full)
height = (hv&3)+1;
if(sy > 240 || sy + (height<<3) <= 0) skip|=1<<22;
width = (hv>>2)+1;
code2 = sprite[1];
sx = (code2>>16)&0x1ff;
sx -= 0x78; // Get X coordinate + 8
sx_min = 8-(width<<3);
if((sx <= sx_min && sx >= -0x76) || sx >= 328) skip|=1<<23;
else if (sx > sx_min && !skip) {
int sbl = (2<<height)-1;
@ -935,10 +932,10 @@ static void PrepareSprites(int full)
if(shi < 0) shi=0; // negative sy
sblocks |= sbl<<shi;
}
*pd++ = (width<<28)|(height<<24)|skip|(hv<<16)|((unsigned short)sy);
*pd++ = (sx<<16)|((unsigned short)code2);
// Find next sprite
link=(code>>16)&0x7f;
if(!link) break; // End of sprites
@ -1205,7 +1202,7 @@ static int DrawDisplay(int sh)
if (win&0x80) { if (Scanline>=edge) hvwind=1; }
else { if (Scanline< edge) hvwind=1; }
if(!hvwind) { // we might have a vertical window here
if(!hvwind) { // we might have a vertical window here
win=pvid->reg[0x11];
edge=win&0x1f;
if(win&0x80) {