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annotate libblastem.c @ 1885:4178ce857e87

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Calculate fine scroll once per line for a small speedup
author Michael Pavone <pavone@retrodev.com>
date Sat, 21 Sep 2019 11:01:07 -0700
parents 62e8a8833e39
children 377f110e4cea
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include <stdlib.h>
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2 #include <string.h>
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3 #include "libretro.h"
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4 #include "system.h"
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5 #include "util.h"
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6 #include "vdp.h"
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7 #include "render.h"
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8 #include "io.h"
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9
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10 static retro_environment_t retro_environment;
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11 RETRO_API void retro_set_environment(retro_environment_t re)
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12 {
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13 retro_environment = re;
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14 # define input_descriptor_macro(pad_num) \
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15 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, \
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16 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, \
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17 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, \
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18 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, \
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19 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "A" }, \
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20 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "B" }, \
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21 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, \
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22 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "X" }, \
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23 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "Z" }, \
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24 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "C" }, \
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25 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Mode" }, \
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26 { pad_num, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, \
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27
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28 static const struct retro_input_descriptor desc[] = {
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29 input_descriptor_macro(0)
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30 input_descriptor_macro(1)
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31 input_descriptor_macro(2)
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32 input_descriptor_macro(3)
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33 input_descriptor_macro(4)
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34 input_descriptor_macro(5)
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35 input_descriptor_macro(6)
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36 input_descriptor_macro(7)
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37 { 0 },
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38 };
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39
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40 re(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, (void *)desc);
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41 }
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42
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43 static retro_video_refresh_t retro_video_refresh;
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44 RETRO_API void retro_set_video_refresh(retro_video_refresh_t rvf)
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45 {
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46 retro_video_refresh = rvf;
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47 }
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48
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49 static retro_audio_sample_t retro_audio_sample;
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50 RETRO_API void retro_set_audio_sample(retro_audio_sample_t ras)
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51 {
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52 retro_audio_sample = ras;
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53 }
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54
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55 RETRO_API void retro_set_audio_sample_batch(retro_audio_sample_batch_t rasb)
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56 {
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57 }
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58
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59 static retro_input_poll_t retro_input_poll;
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60 RETRO_API void retro_set_input_poll(retro_input_poll_t rip)
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61 {
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62 retro_input_poll = rip;
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63 }
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64
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65 static retro_input_state_t retro_input_state;
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66 RETRO_API void retro_set_input_state(retro_input_state_t ris)
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67 {
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68 retro_input_state = ris;
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69 }
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70
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71 int headless = 0;
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72 int exit_after = 0;
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73 int z80_enabled = 1;
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74 char *save_filename;
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75 tern_node *config;
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76 uint8_t use_native_states = 1;
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77 system_header *current_system;
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78 system_media media;
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79
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80 RETRO_API void retro_init(void)
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81 {
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82 }
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83
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84 RETRO_API void retro_deinit(void)
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85 {
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86 if (current_system) {
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87 retro_unload_game();
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88 }
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89 }
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90
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91 RETRO_API unsigned retro_api_version(void)
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92 {
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93 return RETRO_API_VERSION;
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94 }
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95
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96 RETRO_API void retro_get_system_info(struct retro_system_info *info)
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97 {
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98 info->library_name = "BlastEm";
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99 info->library_version = "0.6.3-pre"; //TODO: share this with blastem.c
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100 info->valid_extensions = "md|gen|sms|bin|rom";
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101 info->need_fullpath = 0;
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102 info->block_extract = 0;
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103 }
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104
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105 static vid_std video_standard;
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106 static uint32_t last_width, last_height;
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107 static uint32_t overscan_top, overscan_bot, overscan_left, overscan_right;
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108 static void update_overscan(void)
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109 {
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110 uint8_t overscan;
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111 retro_environment(RETRO_ENVIRONMENT_GET_OVERSCAN, &overscan);
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112 if (overscan) {
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113 overscan_top = overscan_bot = overscan_left = overscan_right = 0;
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114 } else {
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115 if (video_standard == VID_NTSC) {
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116 overscan_top = 11;
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117 overscan_bot = 8;
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118 overscan_left = 13;
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119 overscan_right = 14;
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120 } else {
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121 overscan_top = 30;
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122 overscan_bot = 24;
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123 overscan_left = 13;
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124 overscan_right = 14;
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125 }
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126 }
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127 }
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128
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129 RETRO_API void retro_get_system_av_info(struct retro_system_av_info *info)
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130 {
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131 update_overscan();
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132 last_width = LINEBUF_SIZE;
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133 info->geometry.base_width = info->geometry.max_width = LINEBUF_SIZE - (overscan_left + overscan_right);
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134 info->geometry.base_height = (video_standard == VID_NTSC ? 243 : 294) - (overscan_top + overscan_bot);
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135 last_height = info->geometry.base_height;
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136 info->geometry.max_height = info->geometry.base_height * 2;
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137 info->geometry.aspect_ratio = 0;
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138 info->timing.fps = video_standard == VID_NTSC ? 60 : 50;
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139 info->timing.sample_rate = 53267; //approximate sample rate of YM2612
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140 }
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141
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142 RETRO_API void retro_set_controller_port_device(unsigned port, unsigned device)
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143 {
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144 }
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145
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146 /* Resets the current game. */
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147 RETRO_API void retro_reset(void)
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148 {
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149 current_system->soft_reset(current_system);
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150 }
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151
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152 /* Runs the game for one video frame.
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153 * During retro_run(), input_poll callback must be called at least once.
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154 *
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155 * If a frame is not rendered for reasons where a game "dropped" a frame,
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156 * this still counts as a frame, and retro_run() should explicitly dupe
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157 * a frame if GET_CAN_DUPE returns true.
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158 * In this case, the video callback can take a NULL argument for data.
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159 */
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160 static uint8_t started;
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161 RETRO_API void retro_run(void)
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162 {
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163 if (started) {
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164 current_system->resume_context(current_system);
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165 } else {
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166 current_system->start_context(current_system, NULL);
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167 started = 1;
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168 }
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169 }
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170
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171 /* Returns the amount of data the implementation requires to serialize
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172 * internal state (save states).
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173 * Between calls to retro_load_game() and retro_unload_game(), the
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174 * returned size is never allowed to be larger than a previous returned
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175 * value, to ensure that the frontend can allocate a save state buffer once.
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176 */
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177 static size_t serialize_size_cache;
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178 RETRO_API size_t retro_serialize_size(void)
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179 {
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180 if (!serialize_size_cache) {
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181 uint8_t *tmp = current_system->serialize(current_system, &serialize_size_cache);
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182 free(tmp);
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183 }
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184 return serialize_size_cache;
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185 }
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186
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187 /* Serializes internal state. If failed, or size is lower than
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188 * retro_serialize_size(), it should return false, true otherwise. */
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189 RETRO_API bool retro_serialize(void *data, size_t size)
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190 {
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191 size_t actual_size;
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192 uint8_t *tmp = current_system->serialize(current_system, &actual_size);
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193 if (actual_size > size) {
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194 free(tmp);
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195 return 0;
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196 }
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197 memcpy(data, tmp, actual_size);
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198 free(tmp);
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199 return 1;
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200 }
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201
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202 RETRO_API bool retro_unserialize(const void *data, size_t size)
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203 {
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204 current_system->deserialize(current_system, (uint8_t *)data, size);
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205 return 0;
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206 }
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207
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208 RETRO_API void retro_cheat_reset(void)
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209 {
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210 }
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211
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212 RETRO_API void retro_cheat_set(unsigned index, bool enabled, const char *code)
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213 {
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214 }
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215
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216 /* Loads a game. */
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217 RETRO_API bool retro_load_game(const struct retro_game_info *game)
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218 {
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219 serialize_size_cache = 0;
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220 if (game->path) {
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221 media.dir = path_dirname(game->path);
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222 media.name = basename_no_extension(game->path);
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223 media.extension = path_extension(game->path);
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224 }
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225 media.buffer = malloc(nearest_pow2(game->size));
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226 memcpy(media.buffer, game->data, game->size);
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227 media.size = game->size;
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228 current_system = alloc_config_system(detect_system_type(&media), &media, 0, 0);
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229
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230 unsigned format = RETRO_PIXEL_FORMAT_XRGB8888;
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diff changeset
231 retro_environment(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &format);
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232 return current_system != NULL;
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233 }
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234
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235 /* Loads a "special" kind of game. Should not be used,
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236 * except in extreme cases. */
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237 RETRO_API bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
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diff changeset
238 {
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239 return retro_load_game(info);
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240 }
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241
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242 /* Unloads a currently loaded game. */
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243 RETRO_API void retro_unload_game(void)
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244 {
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245 free(media.dir);
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246 free(media.name);
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247 free(media.extension);
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248 media.dir = media.name = media.extension = NULL;
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249 //buffer is freed by the context
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250 media.buffer = NULL;
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251 current_system->free_context(current_system);
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252 current_system = NULL;
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253 }
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254
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255 /* Gets region of game. */
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256 RETRO_API unsigned retro_get_region(void)
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diff changeset
257 {
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258 return video_standard == VID_NTSC ? RETRO_REGION_NTSC : RETRO_REGION_PAL;
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259 }
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260
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261 /* Gets region of memory. */
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262 RETRO_API void *retro_get_memory_data(unsigned id)
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diff changeset
263 {
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264 return NULL;
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265 }
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266
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267 RETRO_API size_t retro_get_memory_size(unsigned id)
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diff changeset
268 {
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269 return 0;
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270 }
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271
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272 //blastem render backend API implementation
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273 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b)
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diff changeset
274 {
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275 return r << 16 | g << 8 | b;
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276 }
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277
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278 uint8_t render_create_window(char *caption, uint32_t width, uint32_t height, window_close_handler close_handler)
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279 {
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280 //not supported in lib build
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281 return 0;
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282 }
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283
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284 void render_destroy_window(uint8_t which)
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285 {
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diff changeset
286 //not supported in lib build
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diff changeset
287 }
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parents:
diff changeset
288
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parents:
diff changeset
289 static uint32_t fb[LINEBUF_SIZE * 294 * 2];
1695
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
290 static uint8_t last_fb;
1687
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parents:
diff changeset
291 uint32_t *render_get_framebuffer(uint8_t which, int *pitch)
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parents:
diff changeset
292 {
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
293 *pitch = LINEBUF_SIZE * sizeof(uint32_t);
1695
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
294 if (which != last_fb) {
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Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
295 *pitch = *pitch * 2;
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
296 }
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
297
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
298 if (which) {
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
299 return fb + LINEBUF_SIZE;
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
300 } else {
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
301 return fb;
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
302 }
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
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diff changeset
303 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
304
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parents:
diff changeset
305 void render_framebuffer_updated(uint8_t which, int width)
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
306 {
1882
62e8a8833e39 Implement overscan crop in libretro target
Michael Pavone <pavone@retrodev.com>
parents: 1881
diff changeset
307 unsigned height = (video_standard == VID_NTSC ? 243 : 294) - (overscan_top + overscan_bot);
62e8a8833e39 Implement overscan crop in libretro target
Michael Pavone <pavone@retrodev.com>
parents: 1881
diff changeset
308 width -= (overscan_left + overscan_right);
1695
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
309 unsigned base_height = height;
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
310 if (which != last_fb) {
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
311 height *= 2;
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
312 last_fb = which;
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Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
313 }
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
314 if (width != last_width || height != last_height) {
1694
9e4dd1595f37 Fix aspect ratio for H32 games
Michael Pavone <pavone@retrodev.com>
parents: 1691
diff changeset
315 struct retro_game_geometry geometry = {
9e4dd1595f37 Fix aspect ratio for H32 games
Michael Pavone <pavone@retrodev.com>
parents: 1691
diff changeset
316 .base_width = width,
9e4dd1595f37 Fix aspect ratio for H32 games
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parents: 1691
diff changeset
317 .base_height = height,
1695
3c34122754ac Properly support interlace in libretro build
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parents: 1694
diff changeset
318 .aspect_ratio = (float)LINEBUF_SIZE / base_height
1694
9e4dd1595f37 Fix aspect ratio for H32 games
Michael Pavone <pavone@retrodev.com>
parents: 1691
diff changeset
319 };
9e4dd1595f37 Fix aspect ratio for H32 games
Michael Pavone <pavone@retrodev.com>
parents: 1691
diff changeset
320 retro_environment(RETRO_ENVIRONMENT_SET_GEOMETRY, &geometry);
9e4dd1595f37 Fix aspect ratio for H32 games
Michael Pavone <pavone@retrodev.com>
parents: 1691
diff changeset
321 last_width = width;
1695
3c34122754ac Properly support interlace in libretro build
Michael Pavone <pavone@retrodev.com>
parents: 1694
diff changeset
322 last_height = height;
1694
9e4dd1595f37 Fix aspect ratio for H32 games
Michael Pavone <pavone@retrodev.com>
parents: 1691
diff changeset
323 }
1882
62e8a8833e39 Implement overscan crop in libretro target
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parents: 1881
diff changeset
324 retro_video_refresh(fb + overscan_left + LINEBUF_SIZE * overscan_top, width, height, LINEBUF_SIZE * sizeof(uint32_t));
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
325 current_system->request_exit(current_system);
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
326 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
327
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parents:
diff changeset
328 uint8_t render_get_active_framebuffer(void)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
329 {
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
330 return 0;
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
331 }
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
332
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
333 void render_set_video_standard(vid_std std)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
334 {
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
335 video_standard = std;
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
336 }
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
337
1822
8500bd987dda Make libretro target successfully build for Windows and possibly Mac
Mike Pavone <pavone@retrodev.com>
parents: 1819
diff changeset
338 int render_fullscreen(void)
8500bd987dda Make libretro target successfully build for Windows and possibly Mac
Mike Pavone <pavone@retrodev.com>
parents: 1819
diff changeset
339 {
8500bd987dda Make libretro target successfully build for Windows and possibly Mac
Mike Pavone <pavone@retrodev.com>
parents: 1819
diff changeset
340 return 1;
8500bd987dda Make libretro target successfully build for Windows and possibly Mac
Mike Pavone <pavone@retrodev.com>
parents: 1819
diff changeset
341 }
8500bd987dda Make libretro target successfully build for Windows and possibly Mac
Mike Pavone <pavone@retrodev.com>
parents: 1819
diff changeset
342
1881
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
343 uint32_t render_overscan_top()
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
344 {
1882
62e8a8833e39 Implement overscan crop in libretro target
Michael Pavone <pavone@retrodev.com>
parents: 1881
diff changeset
345 return overscan_top;
1881
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
346 }
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
347
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
348 uint32_t render_overscan_bot()
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
349 {
1882
62e8a8833e39 Implement overscan crop in libretro target
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parents: 1881
diff changeset
350 return overscan_bot;
1881
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
351 }
55198fc9cc1f Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
Mike Pavone <pavone@retrodev.com>
parents: 1868
diff changeset
352
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
353 void process_events()
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
354 {
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
355 static int16_t prev_state[2][RETRO_DEVICE_ID_JOYPAD_L2];
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
356 static const uint8_t map[] = {
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
357 BUTTON_A, BUTTON_X, BUTTON_MODE, BUTTON_START, DPAD_UP, DPAD_DOWN,
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
358 DPAD_LEFT, DPAD_RIGHT, BUTTON_B, BUTTON_Y, BUTTON_Z, BUTTON_C
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parents:
diff changeset
359 };
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
360 //TODO: handle other input device types
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
361 //TODO: handle more than 2 ports when appropriate
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
362 retro_input_poll();
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
363 for (int port = 0; port < 2; port++)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
364 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365 for (int id = RETRO_DEVICE_ID_JOYPAD_B; id < RETRO_DEVICE_ID_JOYPAD_L2; id++)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
366 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
367 int16_t new_state = retro_input_state(port, RETRO_DEVICE_JOYPAD, 0, id);
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
368 if (new_state != prev_state[port][id]) {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
369 if (new_state) {
1689
7f42a93f18a4 Have a suitable default IO port configuration when nonIO is present from the config file. Fixed off by one in processing gamepad button events in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
370 current_system->gamepad_down(current_system, port + 1, map[id]);
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
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parents:
diff changeset
371 } else {
1689
7f42a93f18a4 Have a suitable default IO port configuration when nonIO is present from the config file. Fixed off by one in processing gamepad button events in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
372 current_system->gamepad_up(current_system, port + 1, map[id]);
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
373 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
374 prev_state[port][id] = new_state;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
375 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
376 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
377 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
378 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
379
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
380 void render_errorbox(char *title, char *message)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
381 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
382 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
383 void render_warnbox(char *title, char *message)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
384 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
385 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
386 void render_infobox(char *title, char *message)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
387 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
388 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
389
1868
bfacedbae5f0 Fix libretro and stateview targets
Michael Pavone <pavone@retrodev.com>
parents: 1864
diff changeset
390 typedef struct {
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
391 int32_t freq;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
392 int32_t left_accum;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
393 int32_t right_accum;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
394 int32_t num_samples;
1868
bfacedbae5f0 Fix libretro and stateview targets
Michael Pavone <pavone@retrodev.com>
parents: 1864
diff changeset
395 } audio_source;
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
396
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
397 static audio_source *audio_sources[8];
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
398 static uint8_t num_audio_sources;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
399 audio_source *render_audio_source(uint64_t master_clock, uint64_t sample_divider, uint8_t channels)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
400 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
401 audio_sources[num_audio_sources] = calloc(1, sizeof(audio_source));
1688
395f684c5379 Fixed the most glaring issues in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1687
diff changeset
402 audio_sources[num_audio_sources]->freq = master_clock / sample_divider;
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
403 return audio_sources[num_audio_sources++];
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
404 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
405
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
406 void render_audio_adjust_clock(audio_source *src, uint64_t master_clock, uint64_t sample_divider)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
407 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
408 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
409
1817
03895a4585c3 Fix build breakage for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1695
diff changeset
410 void render_audio_source_gaindb(audio_source *src, float gain)
03895a4585c3 Fix build breakage for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1695
diff changeset
411 {
03895a4585c3 Fix build breakage for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1695
diff changeset
412 //TODO: Implement this once I hook up a core option for individual FM/PSG gain
03895a4585c3 Fix build breakage for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1695
diff changeset
413 }
03895a4585c3 Fix build breakage for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1695
diff changeset
414
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
415 static void check_put_sample(void)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
416 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
417 for (int i = 0; i < num_audio_sources; i++)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
418 {
1688
395f684c5379 Fixed the most glaring issues in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1687
diff changeset
419 int32_t min_samples = audio_sources[i]->freq / 53267;
395f684c5379 Fixed the most glaring issues in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1687
diff changeset
420 if (audio_sources[i]->num_samples < min_samples) {
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
421 return;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
422 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
423 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
424 int16_t left = 0, right = 0;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
425 for (int i = 0; i < num_audio_sources; i++)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
426 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
427 left += audio_sources[i]->left_accum / audio_sources[i]->num_samples;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
428 right += audio_sources[i]->right_accum / audio_sources[i]->num_samples;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
429 audio_sources[i]->left_accum = audio_sources[i]->right_accum = audio_sources[i]->num_samples = 0;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
430 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
431 retro_audio_sample(left, right);
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
432 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
433
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
434 void render_put_mono_sample(audio_source *src, int16_t value)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
435 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
436 src->left_accum += value;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
437 src->right_accum += value;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
438 src->num_samples++;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
439 check_put_sample();
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
440 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
441 void render_put_stereo_sample(audio_source *src, int16_t left, int16_t right)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
442 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
443 src->left_accum += left;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
444 src->right_accum += right;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
445 src->num_samples++;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
446 check_put_sample();
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
447 }
1688
395f684c5379 Fixed the most glaring issues in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1687
diff changeset
448
1687
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
449 void render_free_source(audio_source *src)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
450 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
451 int index;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
452 for (index = 0; index < num_audio_sources; index++)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
453 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
454 if (audio_sources[index] == src) {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
455 break;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
456 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
457 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
458 num_audio_sources--;
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
459 audio_sources[index] = audio_sources[num_audio_sources];
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
460 free(src);
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
461 }
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
462
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
463 void bindings_set_mouse_mode(uint8_t mode)
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
464 {
6c54bb5fe3b3 Hacky WIP libertro implementation
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
465 }
1818
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
466
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
467 extern const char rom_db_data[];
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
468 char *read_bundled_file(char *name, uint32_t *sizeret)
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
469 {
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
470 if (!strcmp(name, "rom.db")) {
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
471 *sizeret = strlen(rom_db_data);
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
472 char *ret = malloc(*sizeret+1);
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
473 memcpy(ret, rom_db_data, *sizeret + 1);
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
474 return ret;
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
475 }
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
476 return NULL;
243f3a7247f9 Include ROM DB in library binary for libretro target
Mike Pavone <pavone@retrodev.com>
parents: 1817
diff changeset
477 }