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Get tilemap debug view working for TMS graphics and text modes. Multicolor still TBD
author Michael Pavone <pavone@retrodev.com>
date Sat, 15 Feb 2025 23:29:51 -0800
parents bd8d1babbfb5
children dbff641a33df
comparison
equal deleted inserted replaced
2611:9bd90cd94000 2612:7e04620c9dc1
2585 2585
2586 static void sprite_debug_mode4(uint32_t *fb, uint32_t pitch, vdp_context *context) 2586 static void sprite_debug_mode4(uint32_t *fb, uint32_t pitch, vdp_context *context)
2587 { 2587 {
2588 } 2588 }
2589 2589
2590 uint32_t tms_map_color(vdp_context *context, uint8_t color)
2591 {
2592 if (context->type == VDP_GAMEGEAR) {
2593 //Game Gear uses CRAM entries 16-31 for TMS9918A modes
2594 return context->colors[color + 16 + MODE4_OFFSET];
2595 } else {
2596 color <<= 1;
2597 color = (color & 0xE) | (color << 1 & 0x20);
2598 return context->color_map[color | FBUF_TMS];
2599 }
2600 }
2601
2590 static void plane_debug_tms(uint32_t *fb, uint32_t pitch, vdp_context *context) 2602 static void plane_debug_tms(uint32_t *fb, uint32_t pitch, vdp_context *context)
2591 { 2603 {
2604 uint16_t table_address = context->regs[REG_SCROLL_A] << 10 & 0x3C00;
2605 uint16_t color_address = context->regs[REG_COLOR_TABLE] << 6;
2606 uint16_t pattern_address = context->regs[REG_PATTERN_GEN] << 11 & 0x3800;
2607 uint16_t upper_vcounter_mask;
2608 uint16_t upper_vcounter_pmask;
2609 uint16_t pattern_name_mask;
2610 if (context->type > VDP_SMS2) {
2611 //SMS1 and TMS9918A
2612 upper_vcounter_mask = color_address & 0x1800;
2613 upper_vcounter_pmask = pattern_address & 0x1800;
2614 pattern_name_mask = (color_address & 0x07C0) | 0x0038;
2615 } else {
2616 //SMS2 and Game Gear
2617 upper_vcounter_mask = 0x1800;
2618 upper_vcounter_pmask = 0x1800;
2619 pattern_name_mask = 0x07F8;
2620 }
2621 uint32_t cols, pixels;
2622 if (context->regs[REG_MODE_2] & BIT_M1) {
2623 //Text mode
2624 cols = 40;
2625 pixels = 12;
2626 } else {
2627 //Graphics/Multicolor
2628 cols = 32;
2629 pixels = 16;
2630 }
2631 uint32_t fg, bg;
2632 if (context->regs[REG_MODE_2] & BIT_M1) {
2633 //Text mode uses TC and BD colors
2634 fg = tms_map_color(context, context->regs[REG_BG_COLOR] >> 4);
2635 bg = tms_map_color(context, context->regs[REG_BG_COLOR] & 0xF);
2636 }
2637 for (uint32_t row = 0; row < 24; row++)
2638 {
2639 uint32_t *colfb = fb;
2640 for (uint32_t col = 0; col < cols; col++)
2641 {
2642 uint32_t *linefb = colfb;
2643 uint8_t pattern = context->vdpmem[mode4_address_map[table_address] ^ 1];
2644 uint16_t caddress = color_address;
2645 uint16_t paddress = pattern_address;
2646 if (context->regs[REG_MODE_2] & BIT_M2) {
2647 } else {
2648 if (context->regs[REG_MODE_1] & BIT_M3) {
2649 //Graphics II
2650 caddress &= 0x2000;
2651 paddress &= 0x2000;
2652 caddress |= (row * 8) << 5 & upper_vcounter_mask;
2653 caddress |= pattern << 3 & pattern_name_mask;
2654 paddress |= (row * 8) << 5 & upper_vcounter_pmask;
2655 } else {
2656 caddress |= pattern >> 3;
2657 }
2658 paddress |= pattern << 3 & 0x7F8;
2659 for (uint32_t y = 0; y < 16; y++)
2660 {
2661 uint8_t bits = context->vdpmem[mode4_address_map[paddress] ^ 1];
2662 if (!(context->regs[REG_MODE_2] & BIT_M1)) {
2663 uint8_t colors = context->vdpmem[mode4_address_map[caddress] ^ 1];
2664 fg = tms_map_color(context, colors >> 4);
2665 bg = tms_map_color(context, colors & 0xF);
2666 }
2667
2668 uint32_t *curfb = linefb;
2669 for (uint32_t x = 0; x < pixels; x++)
2670 {
2671 *(curfb++) = (bits & 0x80) ? fg : bg;
2672 if (x & 1) {
2673 bits <<= 1;
2674 }
2675 }
2676 linefb += pitch / sizeof(uint32_t);
2677 if (y & 1) {
2678 if (context->regs[REG_MODE_1] & BIT_M3) {
2679 caddress++;
2680 }
2681 paddress++;
2682 }
2683 }
2684 }
2685 table_address++;
2686 colfb += pixels;
2687 }
2688 fb += 16 * pitch / sizeof(uint32_t);
2689 }
2592 } 2690 }
2593 2691
2594 static void sprite_debug_tms(uint32_t *fb, uint32_t pitch, vdp_context *context) 2692 static void sprite_debug_tms(uint32_t *fb, uint32_t pitch, vdp_context *context)
2595 { 2693 {
2596 } 2694 }
4229 uint8_t color = tms_sprite_clock(context, 0); 4327 uint8_t color = tms_sprite_clock(context, 0);
4230 if (!context->output) { 4328 if (!context->output) {
4231 tms_sprite_clock(context, 1); 4329 tms_sprite_clock(context, 1);
4232 return; 4330 return;
4233 } 4331 }
4332 uint8_t fg,bg;
4333 if (context->regs[REG_MODE_2] & BIT_M1) {
4334 //Text mode uses TC and BD colors
4335 fg = context->regs[REG_BG_COLOR] >> 4;
4336 bg = context->regs[REG_BG_COLOR] & 0xF;
4337 } else {
4338 fg = context->tmp_buf_b[0] >> 4;
4339 bg = context->tmp_buf_b[0] & 0xF;
4340 if (!bg) {
4341 bg = context->regs[REG_BG_COLOR] & 0xF;
4342 }
4343 }
4234 uint8_t pattern = context->tmp_buf_a[0] & 0x80; 4344 uint8_t pattern = context->tmp_buf_a[0] & 0x80;
4235 context->tmp_buf_a[0] <<= 1; 4345 context->tmp_buf_a[0] <<= 1;
4236 if (!color) { 4346 if (!color) {
4237 uint8_t fg,bg;
4238 if (context->regs[REG_MODE_2] & BIT_M1) {
4239 //Text mode uses TC and BD colors
4240 fg = context->regs[REG_BG_COLOR] >> 4;
4241 bg = context->regs[REG_BG_COLOR] & 0xF;
4242 } else {
4243 fg = context->tmp_buf_b[0] >> 4;
4244 bg = context->tmp_buf_b[0] & 0xF;
4245 if (!bg) {
4246 bg = context->regs[REG_BG_COLOR] & 0xF;
4247 }
4248 }
4249 color = pattern ? fg : bg; 4347 color = pattern ? fg : bg;
4250 } 4348 }
4251 //TODO: composite debug output 4349 //TODO: composite debug output
4252 if (context->type == VDP_GAMEGEAR) { 4350 context->output[context->hslot * 2 - 8 + BORDER_LEFT] = tms_map_color(context, color);
4253 //Game Gear uses CRAM entries 16-31 for TMS9918A modes
4254 context->output[context->hslot * 2 - 8 + BORDER_LEFT] = context->colors[color + 16 + MODE4_OFFSET];
4255 } else {
4256 color <<= 1;
4257 color = (color & 0xE) | (color << 1 & 0x20);
4258 context->output[context->hslot * 2 - 8 + BORDER_LEFT] = context->color_map[color | FBUF_TMS];
4259 }
4260 color = tms_sprite_clock(context, 1); 4351 color = tms_sprite_clock(context, 1);
4261 pattern = context->tmp_buf_a[0] & 0x80; 4352 pattern = context->tmp_buf_a[0] & 0x80;
4262 context->tmp_buf_a[0] <<= 1; 4353 context->tmp_buf_a[0] <<= 1;
4263 if (!color) { 4354 if (!color) {
4264 uint8_t fg,bg;
4265 if (context->regs[REG_MODE_2] & BIT_M1) {
4266 //Text mode uses TC and BD colors
4267 fg = context->regs[REG_BG_COLOR] >> 4;
4268 bg = context->regs[REG_BG_COLOR] & 0xF;
4269 } else {
4270 fg = context->tmp_buf_b[0] >> 4;
4271 bg = context->tmp_buf_b[0] & 0xF;
4272 if (!bg) {
4273 bg = context->regs[REG_BG_COLOR] & 0xF;
4274 }
4275 }
4276 color = pattern ? fg : bg; 4355 color = pattern ? fg : bg;
4277 } 4356 }
4278 //TODO: composite debug output 4357 //TODO: composite debug output
4279 if (context->type == VDP_GAMEGEAR) { 4358 context->output[context->hslot * 2 - 7 + BORDER_LEFT] = tms_map_color(context, color);
4280 //Game Gear uses CRAM entries 16-31 for TMS9918A modes
4281 context->output[context->hslot * 2 - 7 + BORDER_LEFT] = context->colors[color + 16 + MODE4_OFFSET];
4282 } else {
4283 color <<= 1;
4284 color = (color & 0xE) | (color << 1 & 0x20);
4285 context->output[context->hslot * 2 - 7 + BORDER_LEFT] = context->color_map[color | FBUF_TMS];
4286 }
4287 } 4359 }
4288 4360
4289 #define TMS_OUTPUT(slot) if ((slot) < 4 || (slot) > (256 + BORDER_LEFT - 8) / 2) { tms_border(context); } else { tms_composite(context); } 4361 #define TMS_OUTPUT(slot) if ((slot) < 4 || (slot) > (256 + BORDER_LEFT - 8) / 2) { tms_border(context); } else { tms_composite(context); }
4290 #define TMS_OUTPUT_RIGHT(slot) \ 4362 #define TMS_OUTPUT_RIGHT(slot) \
4291 if ((slot) < (256 + BORDER_LEFT - (BORDER_LEFT - 8))/2) {\ 4363 if ((slot) < (256 + BORDER_LEFT - (BORDER_LEFT - 8))/2) {\