Mercurial > repos > blastem
view test.c @ 999:238141756e67
Set sprite overflow flag if we completely consume sprite rendering capacity for the line even if there is nothing left to draw. This graphical corruption in the vertical stretching scroll section. Needs hardware confirmation.
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Sat, 30 Apr 2016 16:19:19 -0700 |
parents | 15d9359fd771 |
children |
line wrap: on
line source
#include <stdint.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #include "vdp.h" int headless = 1; uint16_t read_dma_value(uint32_t address) { return 0; } uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b) { return 0; } void render_alloc_surfaces(vdp_context * context) { context->oddbuf = context->framebuf = malloc(512 * 256 * 4 * 2); memset(context->oddbuf, 0, 512 * 256 * 4 * 2); context->evenbuf = ((char *)context->oddbuf) + 512 * 256 * 4; } int check_hint_time(vdp_context * v_context) { uint32_t orig_hint_cycle = vdp_next_hint(v_context); uint32_t cur_hint_cycle; printf("hint cycle is %d at vcounter: %d, hslot: %d\n", orig_hint_cycle, v_context->vcounter, v_context->hslot); int res = 1; while ((cur_hint_cycle = vdp_next_hint(v_context)) > v_context->cycles) { if (cur_hint_cycle != orig_hint_cycle) { fprintf(stderr, "ERROR: hint cycle changed to %d at vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot); orig_hint_cycle = cur_hint_cycle; res = 0; } vdp_run_context(v_context, v_context->cycles + 1); } printf("hint fired at cycle: %d, vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot); vdp_int_ack(v_context, 4); return res; } int main(int argc, char ** argv) { vdp_context v_context; init_vdp_context(&v_context, 0); vdp_control_port_write(&v_context, 0x8144); vdp_control_port_write(&v_context, 0x8C81); vdp_control_port_write(&v_context, 0x8A7F); vdp_control_port_write(&v_context, 0x8014); v_context.hint_counter = 0x7F; v_context.vcounter = 128; v_context.hslot = 165; //check single shot behavior int res = check_hint_time(&v_context); //check every line behavior while (v_context.vcounter < 225) { vdp_run_context(&v_context, v_context.cycles + 1); } vdp_control_port_write(&v_context, 0x8A00); int hint_count = 0; while (res && v_context.vcounter != 224) { res = res && check_hint_time(&v_context); hint_count++; } if (res && hint_count != 225) { fprintf(stderr, "ERROR: hint count should be 225 but was %d instead\n", hint_count); res = 0; } return 0; }