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improved game vidmode change detection; some iface changes

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@803 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-10-05 15:59:08 +00:00
parent 602c28cac1
commit ae87bffa06
6 changed files with 59 additions and 39 deletions
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28
pico/draw.c
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@ -54,6 +54,7 @@ int HighPreSpr[80*2+1]; // slightly preprocessed sprites
unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]...
int rendstatus, rendstatus_old;
int rendlines;
int DrawScanline;
int PicoDrawMask = -1;
@ -1404,21 +1405,25 @@ static int DrawDisplay(int sh)
// MUST be called every frame
PICO_INTERNAL void PicoFrameStart(void)
{
int lines = 224;
// prepare to do this frame
rendstatus = 0;
if ((Pico.video.reg[12]&6) == 6)
if ((Pico.video.reg[12] & 6) == 6)
rendstatus |= PDRAW_INTERLACE; // interlace mode
if (!(Pico.video.reg[12] & 1))
rendstatus |= PDRAW_32_COLS;
if (Pico.video.reg[1] & 8)
rendstatus |= PDRAW_240LINES;
lines = 240;
DrawScanline = 0;
skip_next_line = 0;
if (rendstatus != rendstatus_old) {
if (rendstatus != rendstatus_old || lines != rendlines) {
rendlines = lines;
rendstatus_old = rendstatus;
emu_video_mode_change((rendstatus & PDRAW_240LINES) ? 0 : 8,
(rendstatus & PDRAW_240LINES) ? 240 : 224,
(Pico.video.reg[12] & 1) ? 0 : 1);
emu_video_mode_change((lines == 240) ? 0 : 8,
lines, (Pico.video.reg[12] & 1) ? 0 : 1);
}
if (PicoOpt & POPT_ALT_RENDERER)
@ -1445,6 +1450,8 @@ 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;
@ -1452,7 +1459,12 @@ static void PicoLine(int line, int offs, int sh, int bgc)
DrawScanline = line;
if (PicoScanBegin != NULL)
skip_next_line = PicoScanBegin(line + offs);
skip = PicoScanBegin(line + offs);
if (skip) {
skip_next_line = skip - 1;
return;
}
// Draw screen:
BackFill(bgc, sh);
@ -1472,7 +1484,7 @@ void PicoDrawSync(int to, int blank_last_line)
int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight?
int bgc = Pico.video.reg[7];
if (!(rendstatus & PDRAW_240LINES))
if (rendlines != 240)
offs = 8;
// need to know which pixels are bg for 32x