X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pico%2F32x%2Fdraw.c;h=ee541bd92a5b503a4b980bc73b2bb772d8f42471;hb=9ae88ef15ff00cacc3877c7ecc13b0092bab50b8;hp=66814abd0a6314742c0ef6911907612f65ac641d;hpb=cff531af94bd9c9c89ae162e80f48ddc26a4e504;p=picodrive.git diff --git a/pico/32x/draw.c b/pico/32x/draw.c deleted file mode 100644 index 66814ab..0000000 --- a/pico/32x/draw.c +++ /dev/null @@ -1,325 +0,0 @@ -/* - * 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); -int (*PicoScan32xEnd)(unsigned int num); -int Pico32xDrawMode; - -static void convert_pal555(int invert_prio) -{ - unsigned int *ps = (void *)Pico32xMem->pal; - unsigned int *pd = (void *)Pico32xMem->pal_native; - unsigned int m1 = 0x001f001f; - unsigned int m2 = 0x03e003e0; - unsigned int m3 = 0xfc00fc00; - unsigned int inv = 0; - int i; - - if (invert_prio) - inv = 0x00200020; - - // place prio to LS green bit - for (i = 0x100/2; i > 0; i--, ps++, pd++) { - unsigned int t = *ps; - *pd = (((t & m1) << 11) | ((t & m2) << 1) | ((t & m3) >> 10)) ^ inv; - } - - Pico32x.dirty_pal = 0; -} - -// direct color mode -#define do_line_dc(pd, p32x, pmd, inv, pmd_draw_code) \ -{ \ - const unsigned int m1 = 0x001f; \ - const unsigned int m2 = 0x03e0; \ - const unsigned int m3 = 0x7c00; \ - int i; \ - \ - for (i = 320; i > 0; i--, pd++, p32x++, pmd++) { \ - unsigned short t = *p32x; \ - if (*pmd != mdbg && !((t ^ inv) & 0x8000)) { \ - pmd_draw_code; \ - continue; \ - } \ - \ - *pd = ((t & m1) << 11) | ((t & m2) << 1) | ((t & m3) >> 10); \ - } \ -} - -// packed pixel mode -#define do_line_pp(pd, p32x, pmd, pmd_draw_code) \ -{ \ - unsigned short t; \ - int i; \ - for (i = 320; i > 0; i--, pd++, p32x++, pmd++) { \ - t = pal[*(unsigned char *)((long)p32x ^ 1)]; \ - if ((t & 0x20) || *pmd == mdbg) \ - *pd = t; \ - else \ - pmd_draw_code; \ - } \ -} - -// run length mode -#define do_line_rl(pd, p32x, pmd, pmd_draw_code) \ -{ \ - unsigned short len, t; \ - int i; \ - for (i = 320; i > 0; p32x++) { \ - t = pal[*p32x & 0xff]; \ - for (len = (*p32x >> 8) + 1; len > 0 && i > 0; len--, i--, pd++, pmd++) { \ - if (*pmd == mdbg || (t & 0x20)) \ - *pd = t; \ - else \ - pmd_draw_code; \ - } \ - } \ -} - -void FinalizeLine32xRGB555(int sh, int line) -{ - unsigned short *pd = DrawLineDest; - unsigned short *pal = Pico32xMem->pal_native; - unsigned char *pmd = HighCol + 8; - unsigned short *dram, *p32x; - unsigned char mdbg; - - FinalizeLine555(sh, line); - - if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 0 || // 32x blanking - // XXX: how is 32col mode hadled by real hardware? - !(Pico.video.reg[12] & 1) || // 32col mode - !(PicoDrawMask & PDRAW_32X_ON)) - { - return; - } - - dram = (void *)Pico32xMem->dram[Pico32x.vdp_regs[0x0a/2] & P32XV_FS]; - p32x = dram + dram[line]; - mdbg = Pico.video.reg[7] & 0x3f; - - if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 2) { // Direct Color Mode - int inv_bit = (Pico32x.vdp_regs[0] & P32XV_PRI) ? 0x8000 : 0; - do_line_dc(pd, p32x, pmd, inv_bit,); - return; - } - - if (Pico32x.dirty_pal) - convert_pal555(Pico32x.vdp_regs[0] & P32XV_PRI); - - if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 1) { // Packed Pixel Mode - unsigned char *p32xb = (void *)p32x; - if (Pico32x.vdp_regs[2 / 2] & P32XV_SFT) - p32xb++; - do_line_pp(pd, p32xb, pmd,); - } - else { // Run Length Mode - do_line_rl(pd, p32x, pmd,); - } -} - -#define MD_LAYER_CODE \ - *dst = palmd[*pmd] - -#define PICOSCAN_PRE \ - PicoScan32xBegin(l + (lines_sft_offs & 0xff)); \ - dst = DrawLineDest; \ - -#define PICOSCAN_POST \ - PicoScan32xEnd(l + (lines_sft_offs & 0xff)); \ - -#define make_do_loop(name, pre_code, post_code, md_code) \ -/* Direct Color Mode */ \ -static void do_loop_dc##name(unsigned short *dst, \ - 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 * (lines_sft_offs & 0xff) + 8; \ - unsigned short *palmd = HighPal; \ - unsigned short *p32x; \ - int lines = lines_sft_offs >> 16; \ - int l; \ - (void)palmd; \ - for (l = 0; l < lines; l++, pmd += 8) { \ - pre_code; \ - p32x = dram + dram[l]; \ - do_line_dc(dst, p32x, pmd, inv_bit, md_code); \ - post_code; \ - } \ -} \ - \ -/* Packed Pixel Mode */ \ -static void do_loop_pp##name(unsigned short *dst, \ - unsigned short *dram, int lines_sft_offs, int mdbg) \ -{ \ - unsigned short *pal = Pico32xMem->pal_native; \ - unsigned char *pmd = PicoDraw2FB + \ - 328 * (lines_sft_offs & 0xff) + 8; \ - unsigned short *palmd = HighPal; \ - unsigned char *p32x; \ - int lines = lines_sft_offs >> 16; \ - int l; \ - (void)palmd; \ - for (l = 0; l < lines; l++, pmd += 8) { \ - pre_code; \ - p32x = (void *)(dram + dram[l]); \ - p32x += (lines_sft_offs >> 8) & 1; \ - do_line_pp(dst, p32x, pmd, md_code); \ - post_code; \ - } \ -} \ - \ -/* Run Length Mode */ \ -static void do_loop_rl##name(unsigned short *dst, \ - unsigned short *dram, int lines_sft_offs, int mdbg) \ -{ \ - unsigned short *pal = Pico32xMem->pal_native; \ - unsigned char *pmd = PicoDraw2FB + \ - 328 * (lines_sft_offs & 0xff) + 8; \ - unsigned short *palmd = HighPal; \ - unsigned short *p32x; \ - int lines = lines_sft_offs >> 16; \ - int l; \ - (void)palmd; \ - for (l = 0; l < lines; l++, pmd += 8) { \ - pre_code; \ - p32x = dram + dram[l]; \ - do_line_rl(dst, p32x, pmd, md_code); \ - post_code; \ - } \ -} - -#ifdef _ASM_32X_DRAW -#undef make_do_loop -#define make_do_loop(name, pre_code, post_code, md_code) \ -extern void do_loop_dc##name(unsigned short *dst, \ - unsigned short *dram, int lines_offs, int mdbg); \ -extern void do_loop_pp##name(unsigned short *dst, \ - unsigned short *dram, int lines_offs, int mdbg); \ -extern void do_loop_rl##name(unsigned short *dst, \ - unsigned short *dram, int lines_offs, int mdbg); -#endif - -make_do_loop(,,,) -make_do_loop(_md, , , MD_LAYER_CODE) -make_do_loop(_scan, PICOSCAN_PRE, PICOSCAN_POST, ) -make_do_loop(_scan_md, PICOSCAN_PRE, PICOSCAN_POST, MD_LAYER_CODE) - -typedef void (*do_loop_func)(unsigned short *dst, unsigned short *dram, int lines, int mdbg); -enum { DO_LOOP, DO_LOOP_MD, DO_LOOP_SCAN, DO_LOOP_MD_SCAN }; - -static const do_loop_func do_loop_dc_f[] = { do_loop_dc, do_loop_dc_md, do_loop_dc_scan, do_loop_dc_scan_md }; -static const do_loop_func do_loop_pp_f[] = { do_loop_pp, do_loop_pp_md, do_loop_pp_scan, do_loop_pp_scan_md }; -static const do_loop_func do_loop_rl_f[] = { do_loop_rl, do_loop_rl_md, do_loop_rl_scan, do_loop_rl_scan_md }; - -void PicoDraw32xLayer(int offs, int lines, int md_bg) -{ - int have_scan = PicoScan32xBegin != NULL && PicoScan32xEnd != NULL; - const do_loop_func *do_loop; - unsigned short *dram; - int lines_sft_offs; - int which_func; - - DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement; - dram = Pico32xMem->dram[Pico32x.vdp_regs[0x0a/2] & P32XV_FS]; - - if (Pico32xDrawMode == PDM32X_BOTH) { - if (Pico.m.dirtyPal) - PicoDrawUpdateHighPal(); - } - - if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 2) - { - // Direct Color Mode - do_loop = do_loop_dc_f; - goto do_it; - } - - if (Pico32x.dirty_pal) - convert_pal555(Pico32x.vdp_regs[0] & P32XV_PRI); - - if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 1) - { - // Packed Pixel Mode - do_loop = do_loop_pp_f; - } - else - { - // Run Length Mode - do_loop = do_loop_rl_f; - } - -do_it: - 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; - lines_sft_offs = (lines << 16) | offs; - if (Pico32x.vdp_regs[2 / 2] & P32XV_SFT) - lines_sft_offs |= 1 << 8; - - 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 - extern void *Pico32xNativePal; - Pico32xNativePal = Pico32xMem->pal_native; -#endif - - if (is_on) { - // use the same layout as alt renderer - PicoDrawSetInternalBuf(PicoDraw2FB, 328); - Pico32xDrawMode = only_32x ? PDM32X_32X_ONLY : PDM32X_BOTH; - } else { - PicoDrawSetInternalBuf(NULL, 0); - Pico32xDrawMode = PDM32X_OFF; - } -} -