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sms, basic gamegear support

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This commit is contained in:
kub 2021-10-13 21:30:54 +02:00
parent 0df7401c02
commit 466fa07953
16 changed files with 451 additions and 214 deletions
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104
pico/draw.c
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@ -135,7 +135,7 @@ void blockcpy_or(void *dst, void *src, size_t n, int pat)
for (; n; n--)
*pd++ = (unsigned char) (*ps++ | pat);
}
#define blockcpy memcpy
#define blockcpy memmove
#endif
#define TileNormMaker_(pix_func,ret) \
@ -1642,21 +1642,28 @@ void FinalizeLine555(int sh, int line, struct PicoEState *est)
PicoDrawUpdateHighPal();
if (Pico.video.reg[12]&1) {
len = 320;
} else {
len = 256;
}
if ((PicoIn.AHW & PAHW_SMS) && (Pico.m.hardware & 0x3) == 0x3)
len = 160;
else if (Pico.video.reg[12]&1) len = 320;
else len = 256;
if ((*est->PicoOpt & POPT_EN_SOFTSCALE) && len == 256) {
switch (PicoIn.filter) {
case 3: h_upscale_bl4_4_5(pd, 320, ps, 256, 256, f_pal); break;
case 2: h_upscale_bl2_4_5(pd, 320, ps, 256, 256, f_pal); break;
case 1: h_upscale_snn_4_5(pd, 320, ps, 256, 256, f_pal); break;
default: h_upscale_nn_4_5(pd, 320, ps, 256, 256, f_pal); break;
}
if ((*est->PicoOpt & POPT_EN_SOFTSCALE) && len < 320) {
if (len == 256)
switch (PicoIn.filter) {
case 3: h_upscale_bl4_4_5(pd, 320, ps, 256, len, f_pal); break;
case 2: h_upscale_bl2_4_5(pd, 320, ps, 256, len, f_pal); break;
case 1: h_upscale_snn_4_5(pd, 320, ps, 256, len, f_pal); break;
default: h_upscale_nn_4_5(pd, 320, ps, 256, len, f_pal); break;
}
else if (len == 160)
switch (PicoIn.filter) {
case 3:
case 2: h_upscale_bl2_1_2(pd, 320, ps, 160, len, f_pal); break;
default: h_upscale_nn_1_2(pd, 320, ps, 160, len, f_pal); break;
}
} else {
if (!(*est->PicoOpt & POPT_DIS_32C_BORDER) && len == 256) pd += 32;
if (!(*est->PicoOpt & POPT_DIS_32C_BORDER) && len < 320)
pd += (320-len) / 2;
#if 1
h_copy(pd, 320, ps, 320, len, f_pal);
#else
@ -1670,9 +1677,10 @@ void FinalizeLine555(int sh, int line, struct PicoEState *est)
}
#endif
static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
{
unsigned char *pd = est->DrawLineDest;
unsigned char *ps = est->HighCol+8;
int len;
static int dirty_line;
@ -1680,8 +1688,8 @@ static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
{
// a hack for mid-frame palette changes
if (!(est->rendstatus & PDRAW_SONIC_MODE) | (line - dirty_line > 4)) {
// store a maximum of 2 additional palettes in SonicPal
if (est->SonicPalCount < 2)
// store a maximum of 3 additional palettes in SonicPal
if (est->SonicPalCount < 3)
est->SonicPalCount ++;
dirty_line = line;
est->rendstatus |= PDRAW_SONIC_MODE;
@ -1690,35 +1698,33 @@ static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
Pico.m.dirtyPal = 2;
}
if (Pico.video.reg[12]&1) {
len = 320;
} else {
len = 256;
}
if ((PicoIn.AHW & PAHW_SMS) && (Pico.m.hardware & 0x3) == 0x3)
len = 160;
else if (Pico.video.reg[12]&1) len = 320;
else len = 256;
if ((PicoIn.opt & POPT_EN_SOFTSCALE) && len == 256) {
unsigned char *ps = est->HighCol+8;
if (DrawLineDestIncrement == 0)
pd = est->HighCol+8;
if ((PicoIn.opt & POPT_EN_SOFTSCALE) && len < 320) {
unsigned char pal = 0;
if (!sh && (est->rendstatus & PDRAW_SONIC_MODE))
pal = est->SonicPalCount*0x40;
if (DrawLineDestIncrement == 0)
pd = est->HighCol+8;
// Smoothing can't be used with CLUT, hence it's always Nearest Neighbour.
// use reverse version since src and dest ptr may be the same.
rh_upscale_nn_4_5(pd, 320, ps, 256, len, f_or);
} else if (DrawLineDestIncrement == 0) {
if (!sh && (est->rendstatus & PDRAW_SONIC_MODE))
blockcpy_or(est->HighCol+8, est->HighCol+8, len, est->SonicPalCount*0x40);
if (len == 256)
// use reverse version since src and dest ptr may be the same.
rh_upscale_nn_4_5(pd, 320, ps, 256, len, f_or);
else
rh_upscale_nn_1_2(pd, 320, ps, 256, len, f_or);
} else {
if (!(PicoIn.opt & POPT_DIS_32C_BORDER))
pd += 32;
if (!sh && (est->rendstatus & PDRAW_SONIC_MODE)) {
if (!(*est->PicoOpt & POPT_DIS_32C_BORDER) && len < 320)
pd += (320-len) / 2;
if (!sh && (est->rendstatus & PDRAW_SONIC_MODE))
// select active backup palette
blockcpy_or(pd, est->HighCol+8, len, est->SonicPalCount*0x40);
} else {
blockcpy(pd, est->HighCol+8, len);
}
blockcpy_or(pd, ps, len, est->SonicPalCount*0x40);
else if (pd != ps)
blockcpy(pd, ps, len);
}
}
@ -1893,8 +1899,15 @@ PICO_INTERNAL void PicoFrameStart(void)
static void DrawBlankedLine(int line, int offs, int sh, int bgc)
{
if (PicoScanBegin != NULL)
PicoScanBegin(line + offs);
int skip = skip_next_line;
if (PicoScanBegin != NULL && skip == 0)
skip = PicoScanBegin(line + offs);
if (skip) {
skip_next_line = skip - 1;
return;
}
BackFill(bgc, sh, &Pico.est);
@ -1902,7 +1915,7 @@ static void DrawBlankedLine(int line, int offs, int sh, int bgc)
FinalizeLine(sh, line, &Pico.est);
if (PicoScanEnd != NULL)
PicoScanEnd(line + offs);
skip_next_line = PicoScanEnd(line + offs);
Pico.est.HighCol += HighColIncrement;
Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
@ -1910,15 +1923,10 @@ static void DrawBlankedLine(int line, int offs, int sh, int bgc)
static void PicoLine(int line, int offs, int sh, int bgc)
{
int skip = 0;
if (skip_next_line > 0) {
skip_next_line--;
return;
}
int skip = skip_next_line;
Pico.est.DrawScanline = line;
if (PicoScanBegin != NULL)
if (PicoScanBegin != NULL && skip == 0)
skip = PicoScanBegin(line + offs);
if (skip) {