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comparison vdp.c @ 32:8602ad493794

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Fix horizontal sprite mirroring
author Mike Pavone <pavone@retrodev.com>
date Sat, 08 Dec 2012 21:39:01 -0800
parents 25016576b5f3
children 0e7df84158b1
comparison
equal deleted inserted replaced
31:25016576b5f3 32:8602ad493794
110 uint16_t address = ((tileinfo & 0x7FF) << 5) + row * 4; 110 uint16_t address = ((tileinfo & 0x7FF) << 5) + row * 4;
111 int16_t x = ((context->vdpmem[att_addr+ 2] & 0x3) << 8) | context->vdpmem[att_addr + 3]; 111 int16_t x = ((context->vdpmem[att_addr+ 2] & 0x3) << 8) | context->vdpmem[att_addr + 3];
112 if (x) { 112 if (x) {
113 x -= 128; 113 x -= 128;
114 int16_t base_x = x; 114 int16_t base_x = x;
115 int16_t dir;
116 if (tileinfo & MAP_BIT_H_FLIP) {
117 x += (width-1) * 8;
118 dir = -8;
119 } else {
120 dir = 8;
121 }
115 //printf("Sprite %d | x: %d, y: %d, width: %d, height: %d, pal_priority: %X, row: %d, tile addr: %X\n", context->sprite_info_list[context->cur_slot].index, x, context->sprite_info_list[context->cur_slot].y, width, height, pal_priority, row, address); 122 //printf("Sprite %d | x: %d, y: %d, width: %d, height: %d, pal_priority: %X, row: %d, tile addr: %X\n", context->sprite_info_list[context->cur_slot].index, x, context->sprite_info_list[context->cur_slot].y, width, height, pal_priority, row, address);
116 for (;width && context->sprite_draws; --width, x += 8) { 123 for (int16_t i=0; i < width && context->sprite_draws; i++, x += dir) {
117 --context->sprite_draws; 124 --context->sprite_draws;
118 context->sprite_draw_list[context->sprite_draws].address = address + ((x-base_x) / 8) * height * 4; 125 context->sprite_draw_list[context->sprite_draws].address = address + i * height * 4;
119 context->sprite_draw_list[context->sprite_draws].x_pos = x; 126 context->sprite_draw_list[context->sprite_draws].x_pos = x;
120 context->sprite_draw_list[context->sprite_draws].pal_priority = pal_priority; 127 context->sprite_draw_list[context->sprite_draws].pal_priority = pal_priority;
121 context->sprite_draw_list[context->sprite_draws].h_flip = (tileinfo & MAP_BIT_H_FLIP) ? 1 : 0; 128 context->sprite_draw_list[context->sprite_draws].h_flip = (tileinfo & MAP_BIT_H_FLIP) ? 1 : 0;
122 } 129 }
123 context->cur_slot--; 130 context->cur_slot--;