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sms, improve changing of video mode

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This commit is contained in:
kub 2023-12-03 17:46:59 +01:00
parent 6396f46107
commit c180662e07
2 changed files with 16 additions and 13 deletions
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2
pico/draw.c
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@ -1943,7 +1943,7 @@ PICO_INTERNAL void PicoFrameStart(void)
if (est->rendstatus != rendstatus_old || lines != rendlines) {
rendlines = lines;
// mode_change() might reset rendstatus_old by calling SetColorFormat
// mode_change() might reset rendstatus_old by calling SetOutFormat
int rendstatus = est->rendstatus;
emu_video_mode_change(loffs, lines, coffs, columns);
rendstatus_old = rendstatus;

27
pico/mode4.c
View file

@ -728,11 +728,12 @@ static void FinalizeLine8bitSMS(int line);
void PicoFrameStartSMS(void)
{
struct PicoEState *est = &Pico.est;
int lines = 192, columns = 256, loffs, coffs;
skip_next_line = 0;
loffs = screen_offset = 24; // 192 lines is really 224 with top/bottom bars
Pico.est.rendstatus = PDRAW_32_COLS;
est->rendstatus = PDRAW_32_COLS;
// if mode changes make palette dirty since some modes switch to a fixed one
if (mode != ((Pico.video.reg[0]&0x06) | (Pico.video.reg[1]&0x18))) {
@ -753,14 +754,14 @@ void PicoFrameStartSMS(void)
} else {
if ((mode & 4) && (Pico.video.reg[0] & 0x20)) {
// SMS mode 4 with 1st column blanked
Pico.est.rendstatus |= PDRAW_SMS_BLANK_1;
est->rendstatus |= PDRAW_SMS_BLANK_1;
columns = 248;
}
switch (mode) {
// SMS2 only 224/240 line modes, e.g. Micro Machines
case 0x06|0x08:
Pico.est.rendstatus |= PDRAW_30_ROWS;
est->rendstatus |= PDRAW_30_ROWS;
loffs = screen_offset = 0;
lines = 240;
break;
@ -776,32 +777,34 @@ void PicoFrameStartSMS(void)
coffs = (FinalizeLineSMS == NULL && columns == 248 ? 8 : 0);
if (FinalizeLineSMS != NULL && (PicoIn.opt & POPT_EN_SOFTSCALE)) {
// softscaling always generates 320px, but no scaling in 8bit fast
Pico.est.rendstatus |= PDRAW_SOFTSCALE;
est->rendstatus |= PDRAW_SOFTSCALE;
coffs = 0;
columns = 320;
} else if (!(PicoIn.opt & POPT_DIS_32C_BORDER)) {
Pico.est.rendstatus |= PDRAW_BORDER_32;
est->rendstatus |= PDRAW_BORDER_32;
line_offset -= coffs;
coffs = (320-columns) / 2;
if (FinalizeLineSMS == NULL)
line_offset += coffs; // ... else centering done in FinalizeLine
}
if (Pico.est.rendstatus != rendstatus_old || lines != rendlines) {
if (est->rendstatus != rendstatus_old || lines != rendlines) {
// mode_change() might reset rendstatus_old by calling SetOutFormat
int rendstatus = est->rendstatus;
emu_video_mode_change(loffs, lines, coffs, columns);
rendstatus_old = Pico.est.rendstatus;
rendstatus_old = rendstatus;
rendlines = lines;
sprites = 0;
}
Pico.est.HighCol = HighColBase + screen_offset * HighColIncrement;
Pico.est.DrawLineDest = (char *)DrawLineDestBase + screen_offset * DrawLineDestIncrement;
est->HighCol = HighColBase + screen_offset * HighColIncrement;
est->DrawLineDest = (char *)DrawLineDestBase + screen_offset * DrawLineDestIncrement;
if (FinalizeLineSMS == FinalizeLine8bitSMS) {
Pico.m.dirtyPal = (Pico.m.dirtyPal || Pico.est.SonicPalCount ? 2 : 0);
memcpy(Pico.est.SonicPal, PicoMem.cram, 0x40*2);
Pico.m.dirtyPal = (Pico.m.dirtyPal || est->SonicPalCount ? 2 : 0);
memcpy(est->SonicPal, PicoMem.cram, 0x40*2);
}
Pico.est.SonicPalCount = 0;
est->SonicPalCount = 0;
}
void PicoParseSATSMS(int line)