RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 07:17:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

vdp, optimisation for 8bit renderers

Browse source
This commit is contained in:
kub 2020-08-04 22:24:56 +02:00
parent 1f49b75032
commit 352479001c
4 changed files with 18 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

9
pico/draw.c
View file

@ -1582,7 +1582,10 @@ static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
len = 256;
}
if (!sh && (est->rendstatus & PDRAW_SONIC_MODE)) {
if (DrawLineDestBase == HighColBase) {
if (!sh && (est->rendstatus & PDRAW_SONIC_MODE))
blockcpy_or(pd+8, est->HighCol+8, len, est->SonicPalCount*0x40);
} else if (!sh && (est->rendstatus & PDRAW_SONIC_MODE)) {
// select active backup palette
blockcpy_or(pd, est->HighCol+8, len, est->SonicPalCount*0x40);
} else {
@ -1892,6 +1895,10 @@ void PicoDrawSetOutFormat(pdso_t which, int use_32x_line_mode)
void PicoDrawSetOutBufMD(void *dest, int increment)
{
if (FinalizeLine == FinalizeLine8bit && increment == 328) {
// kludge for no-copy mode
PicoDrawSetInternalBuf(dest, increment);
}
if (dest != NULL) {
DrawLineDestBase = dest;
DrawLineDestIncrement = increment;

18
pico/mode4.c
View file

@ -17,7 +17,7 @@
static void (*FinalizeLineM4)(int line);
static int skip_next_line;
static int screen_offset;
static int screen_offset, line_offset;
static void TileBGM4(int sx, int pal)
{
@ -110,8 +110,7 @@ static void draw_sprites(int scanline)
if (pv->reg[0] & 8)
xoff = 0;
if (!FinalizeLineM4 && !(PicoIn.opt & POPT_DIS_32C_BORDER))
xoff += 32;
xoff += line_offset;
sat = (unsigned char *)PicoMem.vram + ((pv->reg[5] & 0x7e) << 7);
if (pv->reg[1] & 2) {
@ -252,8 +251,7 @@ static void DrawDisplayM4(int scanline)
if (dx != 8)
cells++; // have hscroll, need to draw 1 cell more
dx += cellskip << 3;
if (!FinalizeLineM4 && !(PicoIn.opt & POPT_DIS_32C_BORDER))
dx += 32;
dx += line_offset;
// low priority tiles
if (!(pv->debug_p & PVD_KILL_B))
@ -365,18 +363,18 @@ static void FinalizeLine8bitM4(int line)
{
unsigned char *pd = Pico.est.DrawLineDest;
if (!(PicoIn.opt & POPT_DIS_32C_BORDER))
pd += 32;
memcpy(pd, Pico.est.HighCol + 8, 256);
if (HighColBase != DrawLineDestBase)
memcpy(pd + line_offset, Pico.est.HighCol + line_offset + 8, 256);
}
void PicoDrawSetOutputMode4(pdso_t which)
{
line_offset = PicoIn.opt & POPT_DIS_32C_BORDER ? 0 : 32;
switch (which)
{
case PDF_8BIT: FinalizeLineM4 = FinalizeLine8bitM4; break;
case PDF_RGB555: FinalizeLineM4 = FinalizeLineRGB555M4; break;
case PDF_RGB555: FinalizeLineM4 = FinalizeLineRGB555M4;
line_offset = 0 /* done in FinalizeLine */; break;
default: FinalizeLineM4 = NULL;
PicoDrawSetInternalBuf(Pico.est.Draw2FB, 328); break;
}