Mercurial > repos > blastem
annotate vgmplay.c @ 1526:9bea1a199f15 nuklear_ui
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author | Michael Pavone <pavone@retrodev.com> |
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date | Wed, 07 Feb 2018 19:21:44 -0800 |
parents | 57637d17b59e |
children | 55d357bb4398 |
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" |
466 | 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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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 |
466 | 33 void handle_joydown(int joystick, int button) |
34 { | |
35 } | |
36 | |
37 void handle_joyup(int joystick, int button) | |
38 { | |
39 } | |
40 | |
41 void handle_joy_dpad(int joystick, int dpadnum, uint8_t value) | |
42 { | |
43 } | |
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 int headless = 0; |
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66 |
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67 #define CYCLE_LIMIT MCLKS_NTSC/60 |
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68 #define MAX_SOUND_CYCLES 100000 |
466 | 69 tern_node * config; |
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70 |
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71 void vgm_wait(ym2612_context * y_context, psg_context * p_context, uint32_t * current_cycle, uint32_t cycles) |
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72 { |
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73 while (cycles > MAX_SOUND_CYCLES) |
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74 { |
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75 vgm_wait(y_context, p_context, current_cycle, MAX_SOUND_CYCLES); |
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76 cycles -= MAX_SOUND_CYCLES; |
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77 } |
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78 *current_cycle += cycles; |
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79 psg_run(p_context, *current_cycle); |
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80 ym_run(y_context, *current_cycle); |
466 | 81 |
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82 if (*current_cycle > CYCLE_LIMIT) { |
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83 *current_cycle -= CYCLE_LIMIT; |
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84 p_context->cycles -= CYCLE_LIMIT; |
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85 y_context->current_cycle -= CYCLE_LIMIT; |
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86 process_events(); |
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87 } |
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88 } |
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89 |
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90 int main(int argc, char ** argv) |
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91 { |
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92 set_exe_str(argv[0]); |
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93 data_block *blocks = NULL; |
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94 data_block *seek_block = NULL; |
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95 uint32_t seek_offset; |
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96 uint32_t block_offset; |
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97 |
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98 uint32_t fps = 60; |
466 | 99 config = load_config(argv[0]); |
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100 render_init(320, 240, "vgm play", 0); |
466 | 101 |
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102 uint32_t opts = 0; |
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103 if (argc >= 3 && !strcmp(argv[2], "-y")) { |
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104 opts |= YM_OPT_WAVE_LOG; |
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105 } |
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106 |
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107 char * lowpass_cutoff_str = tern_find_path(config, "audio\0lowpass_cutoff\0", TVAL_PTR).ptrval; |
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108 uint32_t lowpass_cutoff = lowpass_cutoff_str ? atoi(lowpass_cutoff_str) : 3390; |
466 | 109 |
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110 ym2612_context y_context; |
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111 ym_init(&y_context, render_sample_rate(), MCLKS_NTSC, MCLKS_PER_YM, render_audio_buffer(), opts, lowpass_cutoff); |
466 | 112 |
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113 psg_context p_context; |
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114 psg_init(&p_context, render_sample_rate(), MCLKS_NTSC, MCLKS_PER_PSG, render_audio_buffer(), lowpass_cutoff); |
466 | 115 |
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116 FILE * f = fopen(argv[1], "rb"); |
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117 vgm_header header; |
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118 fread(&header, sizeof(header), 1, f); |
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119 if (header.version < 0x150 || !header.data_offset) { |
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120 header.data_offset = 0xC; |
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121 } |
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122 fseek(f, header.data_offset + 0x34, SEEK_SET); |
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123 uint32_t data_size = header.eof_offset + 4 - (header.data_offset + 0x34); |
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124 uint8_t * data = malloc(data_size); |
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125 fread(data, 1, data_size, f); |
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126 fclose(f); |
466 | 127 |
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128 uint32_t mclks_sample = MCLKS_NTSC / 44100; |
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129 uint32_t loop_count = 2; |
466 | 130 |
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131 uint8_t * end = data + data_size; |
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132 uint8_t * cur = data; |
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133 uint32_t current_cycle = 0; |
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134 while (cur < end) { |
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135 uint8_t cmd = *(cur++); |
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136 switch(cmd) |
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137 { |
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138 case CMD_PSG_STEREO: |
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139 //ignore for now |
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|
140 cur++; |
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parents:
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|
141 break; |
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parents:
diff
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|
142 case CMD_PSG: |
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|
143 psg_write(&p_context, *(cur++)); |
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parents:
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|
144 break; |
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parents:
diff
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|
145 case CMD_YM2612_0: |
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|
146 ym_address_write_part1(&y_context, *(cur++)); |
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|
147 ym_data_write(&y_context, *(cur++)); |
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|
148 break; |
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|
149 case CMD_YM2612_1: |
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|
150 ym_address_write_part2(&y_context, *(cur++)); |
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151 ym_data_write(&y_context, *(cur++)); |
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|
152 break; |
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|
153 case CMD_WAIT: { |
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|
154 uint32_t wait_time = *(cur++); |
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|
155 wait_time |= *(cur++) << 8; |
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|
156 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
|
157 vgm_wait(&y_context, &p_context, ¤t_cycle, wait_time); |
408
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158 break; |
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|
159 } |
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|
160 case CMD_WAIT_60: |
812
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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
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805
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changeset
|
161 vgm_wait(&y_context, &p_context, ¤t_cycle, 735 * mclks_sample); |
408
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162 break; |
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diff
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|
163 case CMD_WAIT_50: |
812
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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
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805
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changeset
|
164 vgm_wait(&y_context, &p_context, ¤t_cycle, 882 * mclks_sample); |
408
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|
165 break; |
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|
166 case CMD_END: |
514
f66c78cbdcaa
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512
diff
changeset
|
167 if (header.loop_offset && --loop_count) { |
f66c78cbdcaa
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parents:
512
diff
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|
168 cur = data + header.loop_offset + 0x1C - (header.data_offset + 0x34); |
f66c78cbdcaa
Implement per-channel wave logging and primitive looping support in vgm player.
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parents:
512
diff
changeset
|
169 } else { |
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512
diff
changeset
|
170 //TODO: fade out |
f66c78cbdcaa
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512
diff
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|
171 return 0; |
f66c78cbdcaa
Implement per-channel wave logging and primitive looping support in vgm player.
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parents:
512
diff
changeset
|
172 } |
f66c78cbdcaa
Implement per-channel wave logging and primitive looping support in vgm player.
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parents:
512
diff
changeset
|
173 break; |
511
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Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
174 case CMD_DATA: { |
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Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
175 cur++; //skip compat command |
2c1679058727
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parents:
505
diff
changeset
|
176 uint8_t data_type = *(cur++); |
2c1679058727
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parents:
505
diff
changeset
|
177 uint32_t data_size = *(cur++); |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
178 data_size |= *(cur++) << 8; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
179 data_size |= *(cur++) << 16; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
180 data_size |= *(cur++) << 24; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
181 if (data_type == DATA_YM2612_PCM) { |
2c1679058727
Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
182 data_block ** curblock = &blocks; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
183 while(*curblock) |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
184 { |
2c1679058727
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parents:
505
diff
changeset
|
185 curblock = &((*curblock)->next); |
2c1679058727
Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
186 } |
2c1679058727
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parents:
505
diff
changeset
|
187 *curblock = malloc(sizeof(data_block)); |
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Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
188 (*curblock)->size = data_size; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
189 (*curblock)->type = data_type; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
190 (*curblock)->data = cur; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
191 (*curblock)->next = NULL; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
192 } else { |
2c1679058727
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Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
193 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
|
194 } |
2c1679058727
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parents:
505
diff
changeset
|
195 cur += data_size; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
196 break; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
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parents:
505
diff
changeset
|
197 } |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
198 case CMD_DATA_SEEK: { |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
199 uint32_t new_offset = *(cur++); |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
200 new_offset |= *(cur++) << 8; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
201 new_offset |= *(cur++) << 16; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
202 new_offset |= *(cur++) << 24; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
203 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
|
204 seek_block = blocks; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
205 seek_offset = 0; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
206 block_offset = 0; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
207 } |
2c1679058727
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Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
208 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
|
209 { |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
210 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
|
211 seek_block = seek_block->next; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
212 block_offset = 0; |
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 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
|
215 seek_offset = new_offset; |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
216 break; |
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 |
408
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
219 default: |
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
220 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
|
221 uint32_t wait_time = (cmd & 0xF) + 1; |
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
222 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
|
223 vgm_wait(&y_context, &p_context, ¤t_cycle, wait_time); |
511
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
224 } 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
|
225 if (seek_block) { |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
226 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
|
227 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
|
228 seek_offset++; |
6800d30437c9
Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents:
511
diff
changeset
|
229 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
|
230 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
|
231 block_offset = 0; |
6800d30437c9
Increment sample pointer after reading a sample in VGM player
Michael Pavone <pavone@retrodev.com>
parents:
511
diff
changeset
|
232 } |
511
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
233 } else { |
2c1679058727
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Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
234 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
|
235 } |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
236 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
|
237 if (wait_time) |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
238 { |
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
239 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
|
240 vgm_wait(&y_context, &p_context, ¤t_cycle, wait_time); |
511
2c1679058727
Add support for VGM 1.50 PCM data blocks
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
241 } |
408
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
242 } 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
|
243 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
|
244 } |
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
245 } |
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
246 } |
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
247 return 0; |
a13a83934ba3
Add primitive vgm player for testing
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
248 } |