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comparison vdp.c @ 884:252dfd29831d

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Selecting a second game from the menu now works
author Michael Pavone <pavone@retrodev.com>
date Fri, 13 Nov 2015 22:56:59 -0800
parents ac65086c031e
children e64168bb2b25
comparison
equal deleted inserted replaced
883:9f149f0e98b7 884:252dfd29831d
136 } 136 }
137 } 137 }
138 if (region_pal) { 138 if (region_pal) {
139 context->flags2 |= FLAG2_REGION_PAL; 139 context->flags2 |= FLAG2_REGION_PAL;
140 } 140 }
141 }
142
143 void vdp_free(vdp_context *context)
144 {
145 free(context->vdpmem);
146 free(context->linebuf);
147 if (headless) {
148 free(context->oddbuf);
149 free(context->evenbuf);
150 } else {
151 render_free_surfaces(context);
152 }
153 free(context);
141 } 154 }
142 155
143 int is_refresh(vdp_context * context, uint32_t slot) 156 int is_refresh(vdp_context * context, uint32_t slot)
144 { 157 {
145 if (context->regs[REG_MODE_4] & BIT_H40) { 158 if (context->regs[REG_MODE_4] & BIT_H40) {
845 colors += CRAM_SIZE; 858 colors += CRAM_SIZE;
846 } else if (intensity == BUF_BIT_PRIORITY*2) { 859 } else if (intensity == BUF_BIT_PRIORITY*2) {
847 src |= DBG_HILIGHT; 860 src |= DBG_HILIGHT;
848 colors += CRAM_SIZE*2; 861 colors += CRAM_SIZE*2;
849 } 862 }
850 863
851 uint32_t outpixel; 864 uint32_t outpixel;
852 if (context->debug) { 865 if (context->debug) {
853 outpixel = context->debugcolors[src]; 866 outpixel = context->debugcolors[src];
854 } else { 867 } else {
855 outpixel = colors[pixel & 0x3F]; 868 outpixel = colors[pixel & 0x3F];
947 context->vcounter = 0x1CA; 960 context->vcounter = 0x1CA;
948 } 961 }
949 } else if (!(context->latched_mode & BIT_PAL) && context->vcounter == 0xEB) { 962 } else if (!(context->latched_mode & BIT_PAL) && context->vcounter == 0xEB) {
950 context->vcounter = 0x1E5; 963 context->vcounter = 0x1E5;
951 } 964 }
952 965
953 if (context->vcounter > (context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START)) { 966 if (context->vcounter > (context->latched_mode & BIT_PAL ? PAL_INACTIVE_START : NTSC_INACTIVE_START)) {
954 context->hint_counter = context->regs[REG_HINT]; 967 context->hint_counter = context->regs[REG_HINT];
955 } else if (context->hint_counter) { 968 } else if (context->hint_counter) {
956 context->hint_counter--; 969 context->hint_counter--;
957 } else { 970 } else {
1018 render_map_output(context->vcounter, column, context);\ 1031 render_map_output(context->vcounter, column, context);\
1019 if (column == 40 || (column == 32 && startcyc == 124)) {\ 1032 if (column == 40 || (column == 32 && startcyc == 124)) {\
1020 vdp_advance_line(context);\ 1033 vdp_advance_line(context);\
1021 }\ 1034 }\
1022 CHECK_LIMIT 1035 CHECK_LIMIT
1023 1036
1024 #define SPRITE_RENDER_H40(slot) \ 1037 #define SPRITE_RENDER_H40(slot) \
1025 case slot:\ 1038 case slot:\
1026 render_sprite_cells( context);\ 1039 render_sprite_cells( context);\
1027 scan_sprite_table(context->vcounter, context);\ 1040 scan_sprite_table(context->vcounter, context);\
1028 if (context->flags & FLAG_DMA_RUN) { run_dma_src(context, context->hslot); } \ 1041 if (context->flags & FLAG_DMA_RUN) { run_dma_src(context, context->hslot); } \
1036 } else {\ 1049 } else {\
1037 context->cycles += slot_cycles;\ 1050 context->cycles += slot_cycles;\
1038 }\ 1051 }\
1039 }\ 1052 }\
1040 CHECK_ONLY 1053 CHECK_ONLY
1041 1054
1042 #define SPRITE_RENDER_H32(slot) \ 1055 #define SPRITE_RENDER_H32(slot) \
1043 case slot:\ 1056 case slot:\
1044 render_sprite_cells( context);\ 1057 render_sprite_cells( context);\
1045 scan_sprite_table(context->vcounter, context);\ 1058 scan_sprite_table(context->vcounter, context);\
1046 if (context->flags & FLAG_DMA_RUN) { run_dma_src(context, context->hslot); } \ 1059 if (context->flags & FLAG_DMA_RUN) { run_dma_src(context, context->hslot); } \
1049 } else {\ 1062 } else {\
1050 context->hslot++;\ 1063 context->hslot++;\
1051 }\ 1064 }\
1052 context->cycles += slot_cycles;\ 1065 context->cycles += slot_cycles;\
1053 CHECK_ONLY 1066 CHECK_ONLY
1054 1067
1055 1068
1056 void vdp_h40(vdp_context * context, uint32_t target_cycles) 1069 void vdp_h40(vdp_context * context, uint32_t target_cycles)
1057 { 1070 {
1058 uint16_t address; 1071 uint16_t address;
1059 uint32_t mask; 1072 uint32_t mask;
1682 if ( 1695 if (
1683 ( 1696 (
1684 line > inactive_start 1697 line > inactive_start
1685 && line < 0x1FF 1698 && line < 0x1FF
1686 ) 1699 )
1687 || (line == inactive_start 1700 || (line == inactive_start
1688 && ( 1701 && (
1689 slot >= (context->regs[REG_MODE_4] & BIT_H40 ? VBLANK_START_H40 : VBLANK_START_H32) 1702 slot >= (context->regs[REG_MODE_4] & BIT_H40 ? VBLANK_START_H40 : VBLANK_START_H32)
1690 || slot < (context->regs[REG_MODE_4] & BIT_H40 ? LINE_CHANGE_H40 : LINE_CHANGE_H32) 1703 || slot < (context->regs[REG_MODE_4] & BIT_H40 ? LINE_CHANGE_H40 : LINE_CHANGE_H32)
1691 ) 1704 )
1692 ) 1705 )