+/*
+ * mode4/SMS renderer
+ * (C) notaz, 2009-2010
+ *
+ * This work is licensed under the terms of MAME license.
+ * See COPYING file in the top-level directory.
+ */
/*
* TODO:
* - TMS9918 modes?
*/
#include "pico_int.h"
-static void (*FinalizeLineM4)(void);
+static void (*FinalizeLineM4)(int line);
static int skip_next_line;
static int screen_offset;
static int TileNormM4(int sx, int addr, int pal)
{
- unsigned char *pd = HighCol + sx;
+ unsigned char *pd = Pico.est.HighCol + sx;
unsigned int pack, t;
pack = *(unsigned int *)(Pico.vram + addr); /* Get 4 bitplanes / 8 pixels */
static int TileFlipM4(int sx,int addr,int pal)
{
- unsigned char *pd = HighCol + sx;
+ unsigned char *pd = Pico.est.HighCol + sx;
unsigned int pack, t;
pack = *(unsigned int *)(Pico.vram + addr); /* Get 4 bitplanes / 8 pixels */
dx += cellskip << 3;
// low priority tiles
- if (PicoDrawMask & PDRAW_LAYERB_ON)
+ if (!(pv->debug_p & PVD_KILL_B))
draw_strip(nametab, dx, cells, tilex | 0x0000 | (ty << 16));
// sprites
- if (PicoDrawMask & PDRAW_SPRITES_LOW_ON)
+ if (!(pv->debug_p & PVD_KILL_S_LO))
draw_sprites(scanline);
// high priority tiles (use virtual layer switch just for fun)
- if (PicoDrawMask & PDRAW_LAYERA_ON)
+ if (!(pv->debug_p & PVD_KILL_A))
draw_strip(nametab, dx, cells, tilex | 0x1000 | (ty << 16));
if (pv->reg[0] & 0x20)
// first column masked
- ((int *)HighCol)[2] = ((int *)HighCol)[3] = 0xe0e0e0e0;
+ ((int *)Pico.est.HighCol)[2] = ((int *)Pico.est.HighCol)[3] = 0xe0e0e0e0;
}
void PicoFrameStartMode4(void)
{
+ int lines = 192;
skip_next_line = 0;
screen_offset = 24;
- rendstatus = PDRAW_192LINES;
+ Pico.est.rendstatus = PDRAW_32_COLS;
+
if ((Pico.video.reg[0] & 6) == 6 && (Pico.video.reg[1] & 0x18)) {
- rendstatus &= ~PDRAW_192LINES;
if (Pico.video.reg[1] & 0x08) {
screen_offset = 0;
- rendstatus |= PDRAW_240LINES;
+ lines = 240;
}
- else // it's 224 lines
+ else {
screen_offset = 8;
+ lines = 224;
+ }
}
+
+ if (Pico.est.rendstatus != rendstatus_old || lines != rendlines) {
+ emu_video_mode_change(screen_offset, lines, 1);
+ rendstatus_old = Pico.est.rendstatus;
+ rendlines = lines;
+ }
+
+ Pico.est.DrawLineDest = (char *)DrawLineDestBase + screen_offset * DrawLineDestIncrement;
}
void PicoLineMode4(int line)
skip_next_line = PicoScanBegin(line + screen_offset);
// Draw screen:
- BackFill(Pico.video.reg[7] & 0x0f, 0);
+ BackFill(Pico.video.reg[7] & 0x0f, 0, &Pico.est);
if (Pico.video.reg[1] & 0x40)
DrawDisplayM4(line);
if (FinalizeLineM4 != NULL)
- FinalizeLineM4();
+ FinalizeLineM4(line);
if (PicoScanEnd != NULL)
skip_next_line = PicoScanEnd(line + screen_offset);
+
+ Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
}
void PicoDoHighPal555M4(void)
{
unsigned int *spal=(void *)Pico.cram;
- unsigned int *dpal=(void *)HighPal;
+ unsigned int *dpal=(void *)Pico.est.HighPal;
unsigned int t;
int i;
t |= (t >> 4) & 0x08610861;
*dpal = t;
}
+ Pico.est.HighPal[0xe0] = 0;
}
-static void FinalizeLineRGB555M4(void)
+static void FinalizeLineRGB555M4(int line)
{
- unsigned short *pd=DrawLineDest;
- unsigned char *ps=HighCol+8;
- unsigned short *pal=HighPal;
- int i;
-
if (Pico.m.dirtyPal)
PicoDoHighPal555M4();
- if (!(PicoOpt & POPT_DIS_32C_BORDER))
- pd += 32;
-
- for (i = 256/4; i > 0; i--) {
- *pd++ = pal[*ps++];
- *pd++ = pal[*ps++];
- *pd++ = pal[*ps++];
- *pd++ = pal[*ps++];
- }
+ // standard FinalizeLine can finish it for us,
+ // with features like scaling and such
+ FinalizeLine555(0, line, &Pico.est);
}
-static void FinalizeLine8bitM4(void)
+static void FinalizeLine8bitM4(int line)
{
- memcpy32(DrawLineDest, (int *)(HighCol+8), 256/4);
+ unsigned char *pd = Pico.est.DrawLineDest;
+
+ if (!(PicoOpt & POPT_DIS_32C_BORDER))
+ pd += 32;
+
+ memcpy32((int *)pd, (int *)(Pico.est.HighCol+8), 256/4);
}
-void PicoDrawSetColorFormatMode4(int which)
+void PicoDrawSetOutputMode4(pdso_t which)
{
switch (which)
{
- case 2: FinalizeLineM4 = FinalizeLine8bitM4; break;
- case 1: FinalizeLineM4 = FinalizeLineRGB555M4; break;
- default:FinalizeLineM4 = NULL; break;
+ case PDF_8BIT: FinalizeLineM4 = FinalizeLine8bitM4; break;
+ case PDF_RGB555: FinalizeLineM4 = FinalizeLineRGB555M4; break;
+ default: FinalizeLineM4 = NULL; break;
}
}