1 #include "../pico_int.h"
3 int (*PicoScan32xBegin)(unsigned int num);
4 int (*PicoScan32xEnd)(unsigned int num);
7 static void convert_pal555(int invert_prio)
9 unsigned int *ps = (void *)Pico32xMem->pal;
10 unsigned int *pd = (void *)Pico32xMem->pal_native;
11 unsigned int m1 = 0x001f001f;
12 unsigned int m2 = 0x03e003e0;
13 unsigned int m3 = 0xfc00fc00;
20 // place prio to LS green bit
21 for (i = 0x100/2; i > 0; i--, ps++, pd++) {
23 *pd = (((t & m1) << 11) | ((t & m2) << 1) | ((t & m3) >> 10)) ^ inv;
26 Pico32x.dirty_pal = 0;
30 #define do_line_dc(pd, p32x, pmd, inv, pmd_draw_code) \
32 const unsigned int m1 = 0x001f; \
33 const unsigned int m2 = 0x03e0; \
34 const unsigned int m3 = 0x7c00; \
37 for (i = 320; i > 0; i--, pd++, p32x++, pmd++) { \
38 unsigned short t = *p32x; \
39 if (*pmd != mdbg && !((t ^ inv) & 0x8000)) { \
44 *pd = ((t & m1) << 11) | ((t & m2) << 1) | ((t & m3) >> 10); \
49 #define do_line_pp(pd, p32x, pmd, pmd_draw_code) \
53 for (i = 320/2; i > 0; i--, p32x++) { \
54 t = pal[*p32x >> 8]; \
55 if (*pmd == mdbg || (t & 0x20)) \
60 t = pal[*p32x & 0xff]; \
61 if (*pmd == mdbg || (t & 0x20)) \
70 #define do_line_rl(pd, p32x, pmd, pmd_draw_code) \
72 unsigned short len, t; \
74 for (i = 320; i > 0; p32x++) { \
75 t = pal[*p32x & 0xff]; \
76 for (len = (*p32x >> 8) + 1; len > 0 && i > 0; len--, i--, pd++, pmd++) { \
77 if (*pmd == mdbg || (t & 0x20)) \
85 void FinalizeLine32xRGB555(int sh, int line)
87 unsigned short *pd = DrawLineDest;
88 unsigned short *pal = Pico32xMem->pal_native;
89 unsigned char *pmd = HighCol + 8;
90 unsigned short *dram, *p32x;
93 FinalizeLine555(sh, line);
95 if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 0 || // 32x blanking
96 // XXX: how is 32col mode hadled by real hardware?
97 !(Pico.video.reg[12] & 1) || // 32col mode
98 !(PicoDrawMask & PDRAW_32X_ON))
103 dram = (void *)Pico32xMem->dram[Pico32x.vdp_regs[0x0a/2] & P32XV_FS];
104 p32x = dram + dram[line];
105 mdbg = Pico.video.reg[7] & 0x3f;
107 if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 2) { // Direct Color Mode
108 int inv_bit = (Pico32x.vdp_regs[0] & P32XV_PRI) ? 0x8000 : 0;
109 do_line_dc(pd, p32x, pmd, inv_bit,);
113 if (Pico32x.dirty_pal)
114 convert_pal555(Pico32x.vdp_regs[0] & P32XV_PRI);
116 if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 1) { // Packed Pixel Mode
117 do_line_pp(pd, p32x, pmd,);
119 else { // Run Length Mode
120 do_line_rl(pd, p32x, pmd,);
124 #define MD_LAYER_CODE \
127 #define PICOSCAN_PRE \
128 PicoScan32xBegin(l + (lines_offs & 0xff)); \
129 dst = DrawLineDest; \
131 #define PICOSCAN_POST \
132 PicoScan32xEnd(l + (lines_offs & 0xff)); \
134 #define make_do_loop(name, pre_code, post_code, md_code) \
135 /* Direct Color Mode */ \
136 static void do_loop_dc##name(unsigned short *dst, \
137 unsigned short *dram, int lines_offs, int mdbg) \
139 int inv_bit = (Pico32x.vdp_regs[0] & P32XV_PRI) ? 0x8000 : 0; \
140 unsigned char *pmd = PicoDraw2FB + 328 * 8 + 8; \
141 unsigned short *palmd = HighPal; \
142 unsigned short *p32x; \
143 int lines = lines_offs >> 16; \
146 for (l = 0; l < lines; l++, pmd += 8) { \
148 p32x = dram + dram[l]; \
149 do_line_dc(dst, p32x, pmd, inv_bit, md_code); \
154 /* Packed Pixel Mode */ \
155 static void do_loop_pp##name(unsigned short *dst, \
156 unsigned short *dram, int lines_offs, int mdbg) \
158 unsigned short *pal = Pico32xMem->pal_native; \
159 unsigned char *pmd = PicoDraw2FB + 328 * 8 + 8; \
160 unsigned short *palmd = HighPal; \
161 unsigned short *p32x; \
162 int lines = lines_offs >> 16; \
165 for (l = 0; l < lines; l++, pmd += 8) { \
167 p32x = dram + dram[l]; \
168 do_line_pp(dst, p32x, pmd, md_code); \
173 /* Run Length Mode */ \
174 static void do_loop_rl##name(unsigned short *dst, \
175 unsigned short *dram, int lines_offs, int mdbg) \
177 unsigned short *pal = Pico32xMem->pal_native; \
178 unsigned char *pmd = PicoDraw2FB + 328 * 8 + 8; \
179 unsigned short *palmd = HighPal; \
180 unsigned short *p32x; \
181 int lines = lines_offs >> 16; \
184 for (l = 0; l < lines; l++, pmd += 8) { \
186 p32x = dram + dram[l]; \
187 do_line_rl(dst, p32x, pmd, md_code); \
194 #define make_do_loop(name, pre_code, post_code, md_code) \
195 extern void do_loop_dc##name(unsigned short *dst, \
196 unsigned short *dram, int lines_offs, int mdbg); \
197 extern void do_loop_pp##name(unsigned short *dst, \
198 unsigned short *dram, int lines_offs, int mdbg); \
199 extern void do_loop_rl##name(unsigned short *dst, \
200 unsigned short *dram, int lines_offs, int mdbg);
204 make_do_loop(_md, , , MD_LAYER_CODE)
205 make_do_loop(_scan, PICOSCAN_PRE, PICOSCAN_POST, )
206 make_do_loop(_scan_md, PICOSCAN_PRE, PICOSCAN_POST, MD_LAYER_CODE)
208 typedef void (*do_loop_func)(unsigned short *dst, unsigned short *dram, int lines, int mdbg);
209 enum { DO_LOOP, DO_LOOP_MD, DO_LOOP_SCAN, DO_LOOP_MD_SCAN };
211 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 };
212 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 };
213 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 };
215 void PicoDraw32xLayer(int offs, int lines, int md_bg)
217 int have_scan = PicoScan32xBegin != NULL && PicoScan32xEnd != NULL;
218 const do_loop_func *do_loop;
219 unsigned short *dram;
222 DrawLineDest = DrawLineDestBase + offs * DrawLineDestIncrement;
223 dram = Pico32xMem->dram[Pico32x.vdp_regs[0x0a/2] & P32XV_FS];
225 if (Pico32xDrawMode == 2) {
227 PicoDrawUpdateHighPal();
230 if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 2)
233 do_loop = do_loop_dc_f;
237 if (Pico32x.dirty_pal)
238 convert_pal555(Pico32x.vdp_regs[0] & P32XV_PRI);
240 if ((Pico32x.vdp_regs[0] & P32XV_Mx) == 1)
243 do_loop = do_loop_pp_f;
248 do_loop = do_loop_rl_f;
252 if (Pico32xDrawMode == 2)
253 which_func = have_scan ? DO_LOOP_MD_SCAN : DO_LOOP_MD;
255 which_func = have_scan ? DO_LOOP_SCAN : DO_LOOP;
257 do_loop[which_func](DrawLineDest, dram, (lines << 16) | offs, md_bg);
260 void PicoDraw32xSetFrameMode(int is_on, int only_32x)
263 extern void *Pico32xNativePal;
264 Pico32xNativePal = Pico32xMem->pal_native;
268 // use the same layout as alt renderer
269 PicoDrawSetInternalBuf(PicoDraw2FB + 328*8, 328);
270 Pico32xDrawMode = only_32x ? 1 : 2;
272 PicoDrawSetInternalBuf(NULL, 0);