+/*
+ * PicoDrive
+ * (C) notaz, 2009,2010
+ *
+ * This work is licensed under the terms of MAME license.
+ * See COPYING file in the top-level directory.
+ */
#include "../pico_int.h"
int (*PicoScan32xBegin)(unsigned int num);
unsigned short *dram, int lines_sft_offs, int mdbg) \
{ \
int inv_bit = (Pico32x.vdp_regs[0] & P32XV_PRI) ? 0x8000 : 0; \
- unsigned char *pmd = PicoDraw2FB + 328 * 8 + 8; \
+ unsigned char *pmd = PicoDraw2FB + \
+ 328 * (lines_sft_offs & 0xff) + 8; \
unsigned short *palmd = HighPal; \
unsigned short *p32x; \
int lines = lines_sft_offs >> 16; \
unsigned short *dram, int lines_sft_offs, int mdbg) \
{ \
unsigned short *pal = Pico32xMem->pal_native; \
- unsigned char *pmd = PicoDraw2FB + 328 * 8 + 8; \
+ unsigned char *pmd = PicoDraw2FB + \
+ 328 * (lines_sft_offs & 0xff) + 8; \
unsigned short *palmd = HighPal; \
unsigned char *p32x; \
int lines = lines_sft_offs >> 16; \
unsigned short *dram, int lines_sft_offs, int mdbg) \
{ \
unsigned short *pal = Pico32xMem->pal_native; \
- unsigned char *pmd = PicoDraw2FB + 328 * 8 + 8; \
+ unsigned char *pmd = PicoDraw2FB + \
+ 328 * (lines_sft_offs & 0xff) + 8; \
unsigned short *palmd = HighPal; \
unsigned short *p32x; \
int lines = lines_sft_offs >> 16; \
int lines_sft_offs;
int which_func;
- DrawLineDest = DrawLineDestBase + offs * DrawLineDestIncrement;
+ DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
dram = Pico32xMem->dram[Pico32x.vdp_regs[0x0a/2] & P32XV_FS];
- if (Pico32xDrawMode == 2) {
+ if (Pico32xDrawMode == PDM32X_BOTH) {
if (Pico.m.dirtyPal)
PicoDrawUpdateHighPal();
}
}
do_it:
- if (Pico32xDrawMode == 2)
+ if (Pico32xDrawMode == PDM32X_BOTH)
which_func = have_scan ? DO_LOOP_MD_SCAN : DO_LOOP_MD;
else
which_func = have_scan ? DO_LOOP_SCAN : DO_LOOP;
do_loop[which_func](DrawLineDest, dram, lines_sft_offs, md_bg);
}
+// mostly unused, games tend to keep 32X layer on
+void PicoDraw32xLayerMdOnly(int offs, int lines)
+{
+ int have_scan = PicoScan32xBegin != NULL && PicoScan32xEnd != NULL;
+ unsigned short *dst = (void *)((char *)DrawLineDestBase + offs * DrawLineDestIncrement);
+ unsigned char *pmd = PicoDraw2FB + 328 * offs + 8;
+ unsigned short *pal = HighPal;
+ int poffs = 0, plen = 320;
+ int l, p;
+
+ if (!(Pico.video.reg[12] & 1)) {
+ // 32col mode
+ poffs = 32;
+ plen = 256;
+ }
+
+ if (Pico.m.dirtyPal)
+ PicoDrawUpdateHighPal();
+
+ dst += poffs;
+ for (l = 0; l < lines; l++) {
+ if (have_scan) {
+ PicoScan32xBegin(l + offs);
+ dst = DrawLineDest + poffs;
+ }
+ for (p = 0; p < plen; p += 4) {
+ dst[p + 0] = pal[*pmd++];
+ dst[p + 1] = pal[*pmd++];
+ dst[p + 2] = pal[*pmd++];
+ dst[p + 3] = pal[*pmd++];
+ }
+ dst = (void *)((char *)dst + DrawLineDestIncrement);
+ pmd += 328 - plen;
+ if (have_scan)
+ PicoScan32xEnd(l + offs);
+ }
+}
+
void PicoDraw32xSetFrameMode(int is_on, int only_32x)
{
#ifdef _ASM_32X_DRAW
if (is_on) {
// use the same layout as alt renderer
- PicoDrawSetInternalBuf(PicoDraw2FB + 328*8, 328);
- Pico32xDrawMode = only_32x ? 1 : 2;
+ PicoDrawSetInternalBuf(PicoDraw2FB, 328);
+ Pico32xDrawMode = only_32x ? PDM32X_32X_ONLY : PDM32X_BOTH;
} else {
PicoDrawSetInternalBuf(NULL, 0);
- Pico32xDrawMode = 0;
+ Pico32xDrawMode = PDM32X_OFF;
}
}