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annotate vgmplay.c @ 1746:cd6f4cea97b6

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Call srand in Z80 test generator so different values are used when regenerating tests
author Michael Pavone <pavone@retrodev.com>
date Wed, 06 Feb 2019 08:54:56 -0800
parents 0174759e559f
children c9695252eff4
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rev   line source
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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 "render.h"
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7 #include "ym2612.h"
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8 #include "psg.h"
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9 #include "config.h"
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10 #include "util.h"
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11 #include <stdint.h>
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12 #include <stdio.h>
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13 #include <stdlib.h>
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14 #include <string.h>
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15 #include "vgm.h"
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16
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17 #define MCLKS_NTSC 53693175
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18 #define MCLKS_PAL 53203395
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19
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20 #define MCLKS_PER_68K 7
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21 #define MCLKS_PER_YM MCLKS_PER_68K
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22 #define MCLKS_PER_Z80 15
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23 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16)
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24
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25 void handle_keydown(int keycode)
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26 {
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27 }
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28
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29 void handle_keyup(int keycode)
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30 {
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31 }
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32
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33 void handle_joydown(int joystick, int button)
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34 {
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35 }
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36
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37 void handle_joyup(int joystick, int button)
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38 {
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39 }
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40
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41 void handle_joy_dpad(int joystick, int dpadnum, uint8_t value)
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42 {
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43 }
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44
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45 void handle_joy_axis(int joystick, int axis, int16_t value)
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46 {
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47 }
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48
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49 void handle_joy_added(int joystick)
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50 {
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51 }
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52
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53 void handle_mouse_moved(int mouse, uint16_t x, uint16_t y, int16_t deltax, int16_t deltay)
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54 {
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55 }
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56
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57 void handle_mousedown(int mouse, int button)
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58 {
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59 }
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60
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61 void handle_mouseup(int mouse, int button)
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62 {
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63 }
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64
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65 void controller_add_mappings()
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66 {
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67 }
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68
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69 int headless = 0;
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70
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71 #define CYCLE_LIMIT MCLKS_NTSC/60
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72 #define MAX_SOUND_CYCLES 100000
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73 tern_node * config;
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74
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75 void vgm_wait(ym2612_context * y_context, psg_context * p_context, uint32_t * current_cycle, uint32_t cycles)
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76 {
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77 while (cycles > MAX_SOUND_CYCLES)
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78 {
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79 vgm_wait(y_context, p_context, current_cycle, MAX_SOUND_CYCLES);
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80 cycles -= MAX_SOUND_CYCLES;
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81 }
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82 *current_cycle += cycles;
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83 psg_run(p_context, *current_cycle);
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84 ym_run(y_context, *current_cycle);
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85
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86 if (*current_cycle > CYCLE_LIMIT) {
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87 *current_cycle -= CYCLE_LIMIT;
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88 p_context->cycles -= CYCLE_LIMIT;
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89 y_context->current_cycle -= CYCLE_LIMIT;
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90 process_events();
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91 }
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92 }
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93
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94 int main(int argc, char ** argv)
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95 {
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96 set_exe_str(argv[0]);
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97 data_block *blocks = NULL;
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98 data_block *seek_block = NULL;
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99 uint32_t seek_offset;
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100 uint32_t block_offset;
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101
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102 uint32_t fps = 60;
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103 config = load_config(argv[0]);
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104 render_init(320, 240, "vgm play", 0);
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105
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106 uint32_t opts = 0;
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107 if (argc >= 3 && !strcmp(argv[2], "-y")) {
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108 opts |= YM_OPT_WAVE_LOG;
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109 }
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110
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111 char * lowpass_cutoff_str = tern_find_path(config, "audio\0lowpass_cutoff\0", TVAL_PTR).ptrval;
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112 uint32_t lowpass_cutoff = lowpass_cutoff_str ? atoi(lowpass_cutoff_str) : 3390;
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113
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114 ym2612_context y_context;
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115 ym_init(&y_context, MCLKS_NTSC, MCLKS_PER_YM, opts);
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116
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117 psg_context p_context;
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118 psg_init(&p_context, MCLKS_NTSC, MCLKS_PER_PSG);
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119
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120 FILE * f = fopen(argv[1], "rb");
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121 vgm_header header;
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122 fread(&header, sizeof(header), 1, f);
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123 if (header.version < 0x150 || !header.data_offset) {
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124 header.data_offset = 0xC;
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125 }
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126 fseek(f, header.data_offset + 0x34, SEEK_SET);
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127 uint32_t data_size = header.eof_offset + 4 - (header.data_offset + 0x34);
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128 uint8_t * data = malloc(data_size);
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129 fread(data, 1, data_size, f);
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130 fclose(f);
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131
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132 uint32_t mclks_sample = MCLKS_NTSC / 44100;
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133 uint32_t loop_count = 2;
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134
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135 uint8_t * end = data + data_size;
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136 uint8_t * cur = data;
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137 uint32_t current_cycle = 0;
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138 while (cur < end) {
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139 uint8_t cmd = *(cur++);
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140 switch(cmd)
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141 {
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Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
142 case CMD_PSG_STEREO:
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
143 //ignore for now
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
144 cur++;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
145 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
146 case CMD_PSG:
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
147 psg_write(&p_context, *(cur++));
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
148 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
149 case CMD_YM2612_0:
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
150 ym_address_write_part1(&y_context, *(cur++));
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
151 ym_data_write(&y_context, *(cur++));
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
152 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
153 case CMD_YM2612_1:
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
154 ym_address_write_part2(&y_context, *(cur++));
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
155 ym_data_write(&y_context, *(cur++));
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
156 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
157 case CMD_WAIT: {
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
158 uint32_t wait_time = *(cur++);
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
159 wait_time |= *(cur++) << 8;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
160 wait_time *= mclks_sample;
812
574495372d1c Finish OS X support in build_release script. Fix a name conflict in vgmplay on OS X. Call set_exe_str in vgmplay and stateview
Michael Pavone <pavone@retrodev.com>
parents: 805
diff changeset
161 vgm_wait(&y_context, &p_context, &current_cycle, wait_time);
408
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
162 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
163 }
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
164 case CMD_WAIT_60:
812
574495372d1c Finish OS X support in build_release script. Fix a name conflict in vgmplay on OS X. Call set_exe_str in vgmplay and stateview
Michael Pavone <pavone@retrodev.com>
parents: 805
diff changeset
165 vgm_wait(&y_context, &p_context, &current_cycle, 735 * mclks_sample);
408
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
166 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
167 case CMD_WAIT_50:
812
574495372d1c Finish OS X support in build_release script. Fix a name conflict in vgmplay on OS X. Call set_exe_str in vgmplay and stateview
Michael Pavone <pavone@retrodev.com>
parents: 805
diff changeset
168 vgm_wait(&y_context, &p_context, &current_cycle, 882 * mclks_sample);
408
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
169 break;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
170 case CMD_END:
514
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
171 if (header.loop_offset && --loop_count) {
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
172 cur = data + header.loop_offset + 0x1C - (header.data_offset + 0x34);
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
173 } else {
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
174 //TODO: fade out
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
175 return 0;
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
176 }
f66c78cbdcaa Implement per-channel wave logging and primitive looping support in vgm player.
Michael Pavone <pavone@retrodev.com>
parents: 512
diff changeset
177 break;
511
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
178 case CMD_DATA: {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
179 cur++; //skip compat command
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
180 uint8_t data_type = *(cur++);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
181 uint32_t data_size = *(cur++);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
182 data_size |= *(cur++) << 8;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
183 data_size |= *(cur++) << 16;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
184 data_size |= *(cur++) << 24;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
185 if (data_type == DATA_YM2612_PCM) {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
186 data_block ** curblock = &blocks;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
187 while(*curblock)
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
188 {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
189 curblock = &((*curblock)->next);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
190 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
191 *curblock = malloc(sizeof(data_block));
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
192 (*curblock)->size = data_size;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
193 (*curblock)->type = data_type;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
194 (*curblock)->data = cur;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
195 (*curblock)->next = NULL;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
196 } else {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
197 fprintf(stderr, "Skipping data block with unrecognized type %X\n", data_type);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
198 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
199 cur += data_size;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
200 break;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
201 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
202 case CMD_DATA_SEEK: {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
203 uint32_t new_offset = *(cur++);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
204 new_offset |= *(cur++) << 8;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
205 new_offset |= *(cur++) << 16;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
206 new_offset |= *(cur++) << 24;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
207 if (!seek_block || new_offset < seek_offset) {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
208 seek_block = blocks;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
209 seek_offset = 0;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
210 block_offset = 0;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
211 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
212 while (seek_block && (seek_offset - block_offset + seek_block->size) < new_offset)
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
213 {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
214 seek_offset += seek_block->size - block_offset;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
215 seek_block = seek_block->next;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
216 block_offset = 0;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
217 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
218 block_offset += new_offset-seek_offset;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
219 seek_offset = new_offset;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
220 break;
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
221 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
222
408
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
223 default:
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
224 if (cmd >= CMD_WAIT_SHORT && cmd < (CMD_WAIT_SHORT + 0x10)) {
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
225 uint32_t wait_time = (cmd & 0xF) + 1;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
226 wait_time *= mclks_sample;
812
574495372d1c Finish OS X support in build_release script. Fix a name conflict in vgmplay on OS X. Call set_exe_str in vgmplay and stateview
Michael Pavone <pavone@retrodev.com>
parents: 805
diff changeset
227 vgm_wait(&y_context, &p_context, &current_cycle, wait_time);
511
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
228 } else if (cmd >= CMD_YM2612_DAC && cmd < CMD_DAC_STREAM_SETUP) {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
229 if (seek_block) {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
230 ym_address_write_part1(&y_context, 0x2A);
512
6800d30437c9 Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents: 511
diff changeset
231 ym_data_write(&y_context, seek_block->data[block_offset++]);
6800d30437c9 Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents: 511
diff changeset
232 seek_offset++;
6800d30437c9 Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents: 511
diff changeset
233 if (block_offset > seek_block->size) {
6800d30437c9 Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents: 511
diff changeset
234 seek_block = seek_block->next;
6800d30437c9 Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents: 511
diff changeset
235 block_offset = 0;
6800d30437c9 Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents: 511
diff changeset
236 }
511
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
237 } else {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
238 fputs("Encountered DAC write command but data seek pointer is invalid!\n", stderr);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
239 }
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
240 uint32_t wait_time = (cmd & 0xF);
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
241 if (wait_time)
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
242 {
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
243 wait_time *= mclks_sample;
812
574495372d1c Finish OS X support in build_release script. Fix a name conflict in vgmplay on OS X. Call set_exe_str in vgmplay and stateview
Michael Pavone <pavone@retrodev.com>
parents: 805
diff changeset
244 vgm_wait(&y_context, &p_context, &current_cycle, wait_time);
511
2c1679058727 Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents: 505
diff changeset
245 }
408
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
246 } else {
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 719
diff changeset
247 fatal_error("unimplemented command: %X at offset %X\n", cmd, (unsigned int)(cur - data - 1));
408
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
248 }
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
249 }
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
250 }
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
251 return 0;
a13a83934ba3 Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
252 }