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annotate stateview.c @ 622:b76d2a628ab9

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Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
author Michael Pavone <pavone@retrodev.com>
date Tue, 17 Jun 2014 19:01:01 -0700
parents 140af5509ce7
children 6e751a8f46aa
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1 /*
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2 Copyright 2013 Michael Pavone
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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5 */
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6 #include <stdlib.h>
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7 #include <stdio.h>
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8 #include "vdp.h"
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9 #include "render.h"
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10 #include "blastem.h"
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11
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12 //not used, but referenced by the renderer since it handles input
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13 io_port gamepad_1;
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14 io_port gamepad_2;
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15 uint8_t reset = 1;
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16 uint8_t busreq = 0;
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17
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18 uint16_t read_dma_value(uint32_t address)
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19 {
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20 return 0;
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21 }
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22
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23 void ym_data_write(ym2612_context * context, uint8_t value)
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24 {
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25 }
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26
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27 void ym_address_write_part1(ym2612_context * context, uint8_t address)
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28 {
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29 }
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30
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31 void ym_address_write_part2(ym2612_context * context, uint8_t address)
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32 {
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33 }
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34
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35 void handle_keydown(int keycode)
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36 {
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37 }
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38
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39 void handle_keyup(int keycode)
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40 {
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41 }
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42
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43 void handle_joydown(int joystick, int button)
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44 {
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45 }
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46
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47 void handle_joyup(int joystick, int button)
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48 {
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49 }
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50
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51 void handle_joy_dpad(int joystick, int dpadnum, uint8_t value)
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52 {
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53 }
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54
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55 tern_node * config;
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56
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57 int main(int argc, char ** argv)
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58 {
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59 if (argc < 2) {
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60 fprintf(stderr, "Usage: stateview FILENAME\n");
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61 exit(1);
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62 }
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63 FILE * state_file = fopen(argv[1], "rb");
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64 if (!state_file) {
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65 fprintf(stderr, "Failed to open %s\n", argv[1]);
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66 exit(1);
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67 }
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68 config = load_config(argv[0]);
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69 int width = -1;
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70 int height = -1;
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71 if (argc > 2) {
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72 width = atoi(argv[2]);
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73 if (argc > 3) {
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74 height = atoi(argv[3]);
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75 }
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76 }
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77 int def_width = 0;
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78 char *config_width = tern_find_ptr(config, "videowidth");
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79 if (config_width) {
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80 def_width = atoi(config_width);
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81 }
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82 if (!def_width) {
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83 def_width = 640;
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84 }
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85 width = width < 320 ? def_width : width;
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86 height = height < 240 ? (width/320) * 240 : height;
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87
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88 vdp_context context;
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89 render_init(width, height, "GST State Viewer", 60, 0);
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90 init_vdp_context(&context);
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91 vdp_load_gst(&context, state_file);
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92 vdp_run_to_vblank(&context);
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93 vdp_print_sprite_table(&context);
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94 printf("Display %s\n", (context.regs[REG_MODE_2] & DISPLAY_ENABLE) ? "enabled" : "disabled");
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95 render_context(&context);
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96 render_wait_quit(&context);
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97 return 0;
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98 }