<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>MDP - mdp_error.h: Error Codes</title> <meta http-equiv='Content-Type' content='text/html; charset=utf-8'> <link rel='stylesheet' href='mdp.css' type='text/css'> </head> <body> <h1 class='doc_title'>MDP - mdp_error.h: Error Codes</h1> <h4 class='doc_set'>Mega Drive Plugins v1.0.0<br>Revision 0</h4> <div class='navbar'> <span class='navitem'><a href="index.html">Index</a></span> <span class='navarrow'>→</span> <span class='navitem'><a href="mdp_error_h.html">mdp_error.h</a></span> </div> <p> It can happen that a function doesn't succeed for some reason. MDP provides a full set of error codes that can be used to determine if an error occurred, and to determine what error happened specifically. </p> <p> MDP uses POSIX notation for return values. That is, a negative return value from any function indicates an error code. For instance, if invalid parameters were passed to an MDP host services function, the function would return the value -<span class='macro'>MDP_ERR_INVALID_PARAMETERS</span>. </p> <p> Error codes are split up into various different categories. The high word of an error code indicates the category, and the low word indicates the actual error. </p> <table> <tr><th colspan='3'>MDP General Errors (category == 0x0000)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_OK</td> <td class='value'>0x00000000</td> <td>No error occurred.</td> </tr> <tr> <td class='macro'>MDP_ERR_CANNOT_OPEN_DLL</td> <td class='value'>0x00000001</td> <td> The emulator could not open an MDP plugin.<br> Possible reasons include that the plugin was compiled<br> for a different architecture or operating system. </td> </tr> <tr> <td class='macro'>MDP_ERR_NO_MDP_SYMBOL</td> <td class='value'>0x00000002</td> <td>No MDP symbol was found in the plugin.</td> </tr> <tr> <td class='macro'>MDP_ERR_INCORRECT_MAJOR_VERSION</td> <td class='value'>0x00000003</td> <td> The plugin's major MDP interface version number is<br> different than the emulator's major MDP interface<br> version number. </td> </tr> <tr> <td class='macro'>MDP_ERR_DUPLICATE_UUID</td> <td class='value'>0x00000004</td> <td> The plugin's UUID is the same as another plugin<br> that was previously loaded. </td> </tr> <tr> <td class='macro'>MDP_ERR_NEEDS_CPUFLAGS</td> <td class='value'>0x00000005</td> <td> The plugin requires certain CPU features that are<br> not present on the current system. </td> </tr> <tr> <td class='macro'>MDP_ERR_INVALID_LICENSE</td> <td class='value'>0x00000006</td> <td> The plugin's license is not compatible with the emulator. </td> </tr> <tr> <td class='macro'>MDP_ERR_FUNCTION_NOT_IMPLEMENTED</td> <td class='value'>0x00000101</td> <td> A plugin called an MDP Host Services function marked as<br> "No (NULL)" in <a href="mdp_host_h.html"><span class='filename'>mdp_host.h</span></a>, and the emulator does not<br> implement it. </td> </tr> <tr> <td class='macro'>MDP_ERR_INVALID_PARAMETERS</td> <td class='value'>0x00000102</td> <td>Invalid parameters were passed to a function.</td> </tr> <tr> <td class='macro'>MDP_ERR_OUT_OF_MEMORY</td> <td class='value'>0x00000103</td> <td>The emulator ran out of memory.</td> </tr> <tr> <td class='macro'>MDP_ERR_UNKNOWN_PTRID</td> <td class='value'>0x00000201</td> <td>Unused. This is a leftover from MDP v0.1.0.</td> </tr> <tr> <td class='macro'>MDP_ERR_UNKNOWN_VALID</td> <td class='value'>0x00000202</td> <td> An unknown MDP value was requested in<br> <span class='struct'>mdp_host_t</span>-><span class='function'>val_get()</span> or <span class='struct'>mdp_host_t</span>-><span class='function'>val_set()</span>.<br> See <span class='enum'><a href="mdp_host_h.html#MDP_VAL">MDP_VAL</a></span> for a list of valid value IDs. </td> </tr> <tr> <td class='macro'>MDP_ERR_VAL_READ_ONLY</td> <td class='value'>0x00000203</td> <td> The plugin attempted to set an MDP value that is marked<br> as read-only. </td> </tr> <tr> <td class='macro'>MDP_ERR_UNSUPPORTED_UI</td> <td class='value'>0x00000204</td> <td>The plugin does not support the current UI subsystem.</td> </tr> <tr> <td class='macro'>MDP_ERR_ROM_NOT_LOADED</td> <td class='value'>0x00000205</td> <td> The plugin attempted to do something that requires a ROM<br> to be loaded, but no ROM is loaded. </td> </tr> <tr> <td class='macro'>MDP_ERR_UNKNOWN</td> <td class='value'>0x0000FFFF</td> <td>Unknown error. This should not happen!</td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Renderer Errors (category == 0x0001)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_RENDER_DUPLICATE_TAG</td> <td class='value'>0x00010001</td> <td> The plugin attempted to register a renderer with a tag that<br> belongs to a renderer that was previously registered. </td> </tr> <tr> <td class='macro'>MDP_ERR_RENDER_INVALID_RENDERINFO</td> <td class='value'>0x00010002</td> <td> One of two possible meanings:<br> <ul> <li>A plugin attempted to register a renderer with no tag.</li> <li>A renderer's blit function received a NULL<br>render information struct.</li> </ul> </td> </tr> <tr> <td class='macro'>MDP_ERR_RENDER_UNSUPPORTED_FLAG</td> <td class='value'>0x00010003</td> <td> One of two possible meanings:<br> <ul> <li>A renderer has a feature flag that isn't supported<br>by the emulator.</li> <li>The emulator uses a feature flag that isn't supported<br>by the renderer.</li> </ul> </td> </tr> <tr> <td class='macro'>MDP_ERR_RENDER_UNSUPPORTED_VMODE</td> <td class='value'>0x00010004</td> <td> The emulator is attempting to use a video mode that isn't<br> supported by the renderer. </td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Memory Errors (category == 0x0002)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_MEM_INVALID_MEMID</td> <td class='value'>0x00020001</td> <td>An invalid memory ID was specified.</td> </tr> <tr> <td class='macro'>MDP_ERR_MEM_NOT_ALLOCATED</td> <td class='value'>0x00020002</td> <td> An attempt was made to access a memory area that hasn't<br> been allocated by the emulator, e.g. attempting to read<br> 32X memory when a standard Mega Drive game is running. </td> </tr> <tr> <td class='macro'>MDP_ERR_MEM_OUT_OF_RANGE</td> <td class='value'>0x00020003</td> <td> The specified address and length exceeds the range of<br> the specified memory ID. </td> </tr> <tr> <td class='macro'>MDP_ERR_MEM_NOT_RESIZABLE</td> <td class='value'>0x00020004</td> <td> An attempt was made to resize a memory area that is<br> marked as non-resizable, e.g. Mega Drive main RAM. </td> </tr> <tr> <td class='macro'>MDP_ERR_MEM_UNALIGNED</td> <td class='value'>0x00020005</td> <td> An attempt was made to read or write 16-bit or 32-bit<br> data from or to an unaligned (odd) address. </td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Register Errors (category == 0x0003)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_REG_INVALID_ICID</td> <td class='value'>0x00030001</td> <td>An invalid chip ID was specified.</td> </tr> <tr> <td class='macro'>MDP_ERR_REG_INVALID_REGID</td> <td class='value'>0x00030002</td> <td>An invalid register ID was specified.</td> </tr> <tr> <td class='macro'>MDP_ERR_REG_NOT_ALLOCATED</td> <td class='value'>0x00030003</td> <td> The specified chip's registers have not been allocated<br> by the emulator. For example, this may happen if you try<br> to access the SegaCD's 68000's registers while running<br> a standard Mega Drive game. </td> </tr> <tr> <td class='macro'>MDP_ERR_REG_READ_ONLY</td> <td class='value'>0x00030004</td> <td>An attempt was made to write to a read-only register.</td> </tr> <tr> <td class='macro'>MDP_ERR_REG_WRITE_ONLY</td> <td class='value'>0x00030005</td> <td>An attempt was made to read from a write-only register.</td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Menu Errors (category == 0x0004)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_MENU_INVALID_MENUID</td> <td class='value'>0x00040001</td> <td>An invalid menu ID was specified.</td> </tr> <tr> <td class='macro'>MDP_ERR_MENU_TOO_MANY_ITEMS</td> <td class='value'>0x00040002</td> <td> The MDP menu system is full. No more menu items<br> can be registered. </td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Event Errors (category == 0x0005)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_EVENT_INVALID_EVENTID</td> <td class='value'>0x00050001</td> <td>An invalid event ID was specified.</td> </tr> <tr> <td class='macro'>MDP_ERR_EVENT_NOT_REGISTERED</td> <td class='value'>0x00050002</td> <td> An attempt was made to unregister an event that<br> the plugin didn't register in the first place. </td> </tr> <tr> <td class='macro'>MDP_ERR_EVENT_NOT_REGISTERED</td> <td class='value'>0x00050002</td> <td> An attempt was made to register an event that<br> the plugin already registered. </td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Window Errors (category == 0x0006)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_WINDOW_INVALID_WINDOW</td> <td class='value'>0x00060001</td> <td>The specified window is not known to the emulator.</td> </tr> <tr> <td class='macro'>MDP_ERR_WINDOW_ALREADY_REGISTERED</td> <td class='value'>0x00060002</td> <td> An attempt was made to register a window that has<br> already been registered. </td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Emulator Control Errors (category == 0x0007)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_WINDOW_INVALID_FUNCTION</td> <td class='value'>0x00070001</td> <td>An invalid function ID was specified.</td> </tr> <tr> <td class='macro'>MDP_ERR_WINDOW_FUNCTION_NOT_IMPLEMENTED</td> <td class='value'>0x00070002</td> <td>The specified function is not implemented<br>in the emulator.</td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Directory Errors (category == 0x0008)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_DIR_INVALID_DIRID</td> <td class='value'>0x00080001</td> <td>An invalid directory ID was specified.</td> </tr> </table> <p> </p> <table> <tr><th colspan='3'>MDP Compression Errors (category == 0x0009)</th></tr> <tr> <th>Name</th> <th>Value</th> <th>Description</th> </tr> <tr> <td class='macro'>MDP_ERR_Z_ARCHIVE_NOT_FOUND</td> <td class='value'>0x00090001</td> <td>The specified archive was not found.</td> </tr> <tr> <td class='macro'>MDP_ERR_Z_EXE_NOT_FOUND</td> <td class='value'>0x00090002</td> <td> An external program is required in order to open<br> the specified archive, but the external program<br> was not found. </td> </tr> <tr> <td class='macro'>MDP_ERR_Z_ARCHIVE_NOT_SUPPORTED</td> <td class='value'>0x00090003</td> <td>The specified archive is not supported by the emulator.</td> </tr> <tr> <td class='macro'>MDP_ERR_Z_CANT_OPEN_ARCHIVE</td> <td class='value'>0x00090004</td> <td>The archive could not be opened.</td> </tr> <tr> <td class='macro'>MDP_ERR_Z_NO_FILES_IN_ARCHIVE</td> <td class='value'>0x00090005</td> <td>No files were found in the specified archive.</td> </tr> <tr> <td class='macro'>MDP_ERR_Z_FILE_NOT_FOUND_IN_ARCHIVE</td> <td class='value'>0x00090006</td> <td>The requested file was not found in the archive.</td> </tr> </table> </body> </html>
distrib
>
Mageia
>
5
>
i586
>
media
>
core-release
>
by-pkgid
>
63e90c6f974301ed6e037d93940ef271
>
files
>
132
