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annotate test.c @ 1356:4d16c09210fd

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Fix resampling code to deal with case in which output frequency is greater than the input frequency. Probably could stand to be improved, but at least it doesn't cause the emulator to deadlock
author Michael Pavone <pavone@retrodev.com>
date Thu, 11 May 2017 07:51:28 -0700
parents 15d9359fd771
children
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1 #include <stdint.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <stdio.h>
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5 #include "vdp.h"
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6
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7 int headless = 1;
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8 uint16_t read_dma_value(uint32_t address)
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9 {
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10 return 0;
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11 }
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12
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13 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b)
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14 {
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15 return 0;
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16 }
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17
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18 void render_alloc_surfaces(vdp_context * context)
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19 {
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20 context->oddbuf = context->framebuf = malloc(512 * 256 * 4 * 2);
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21 memset(context->oddbuf, 0, 512 * 256 * 4 * 2);
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22 context->evenbuf = ((char *)context->oddbuf) + 512 * 256 * 4;
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23 }
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24
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25 int check_hint_time(vdp_context * v_context)
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26 {
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27 uint32_t orig_hint_cycle = vdp_next_hint(v_context);
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28 uint32_t cur_hint_cycle;
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29 printf("hint cycle is %d at vcounter: %d, hslot: %d\n", orig_hint_cycle, v_context->vcounter, v_context->hslot);
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30 int res = 1;
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31 while ((cur_hint_cycle = vdp_next_hint(v_context)) > v_context->cycles)
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32 {
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33 if (cur_hint_cycle != orig_hint_cycle) {
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34 fprintf(stderr, "ERROR: hint cycle changed to %d at vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot);
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35 orig_hint_cycle = cur_hint_cycle;
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36 res = 0;
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37 }
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38 vdp_run_context(v_context, v_context->cycles + 1);
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39 }
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40 printf("hint fired at cycle: %d, vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot);
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41 vdp_int_ack(v_context, 4);
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42 return res;
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43 }
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44
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45
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46 int main(int argc, char ** argv)
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47 {
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48 vdp_context v_context;
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49 init_vdp_context(&v_context, 0);
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50 vdp_control_port_write(&v_context, 0x8144);
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51 vdp_control_port_write(&v_context, 0x8C81);
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52 vdp_control_port_write(&v_context, 0x8A7F);
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53 vdp_control_port_write(&v_context, 0x8014);
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54 v_context.hint_counter = 0x7F;
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55 v_context.vcounter = 128;
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56 v_context.hslot = 165;
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57 //check single shot behavior
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58 int res = check_hint_time(&v_context);
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59 //check every line behavior
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60 while (v_context.vcounter < 225)
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61 {
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62 vdp_run_context(&v_context, v_context.cycles + 1);
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63 }
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64 vdp_control_port_write(&v_context, 0x8A00);
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65 int hint_count = 0;
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66 while (res && v_context.vcounter != 224)
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67 {
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68 res = res && check_hint_time(&v_context);
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69 hint_count++;
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70 }
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71 if (res && hint_count != 225) {
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72 fprintf(stderr, "ERROR: hint count should be 225 but was %d instead\n", hint_count);
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73 res = 0;
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74 }
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75 return 0;
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76 }