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PluginPresetFxp.c
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PluginPresetFxp.c
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//
// PluginPresetFxp.c - MrsWatson
// Copyright (c) 2016 Teragon Audio. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
#include "PluginPresetFxp.h"
#include "base/Endian.h"
#include "logging/EventLogger.h"
#include "plugin/PluginVst2x.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static boolByte _openPluginPresetFxp(void *pluginPresetPtr) {
PluginPreset pluginPreset = (PluginPreset)pluginPresetPtr;
PluginPresetFxpData extraData =
(PluginPresetFxpData)(pluginPreset->extraData);
extraData->fileHandle = fopen(pluginPreset->presetName->data, "rb");
if (extraData->fileHandle == NULL) {
logError("Preset '%s' could not be opened for reading",
pluginPreset->presetName->data);
return false;
}
return true;
}
static boolByte _loadPluginPresetFxp(void *pluginPresetPtr, Plugin plugin) {
PluginPreset pluginPreset = (PluginPreset)pluginPresetPtr;
PluginPresetFxpData extraData =
(PluginPresetFxpData)(pluginPreset->extraData);
FxpProgram inProgram = NULL;
PluginPresetFxpProgramType programType;
char *chunk;
size_t chunkSize;
unsigned int valueBuffer;
size_t numObjectsRead;
float parameterValue;
unsigned int i;
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at chunkMagic");
return false;
}
inProgram = (FxpProgram)malloc(sizeof(FxpProgramMembers));
inProgram->chunkMagic = convertBigEndianIntToPlatform(valueBuffer);
if (inProgram->chunkMagic != 0x43636E4B) { // 'CcnK'
logError("FXP preset file has bad chunk magic");
free(inProgram);
return false;
}
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at byteSize");
free(inProgram);
return false;
}
inProgram->byteSize = convertBigEndianIntToPlatform(valueBuffer);
logDebug("FXP program has %d bytes in main chunk", inProgram->byteSize);
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at fxMagic");
free(inProgram);
return false;
}
inProgram->fxMagic = convertBigEndianIntToPlatform(valueBuffer);
if (inProgram->fxMagic == 0x4678436b) { // 'FxCk'
programType = FXP_TYPE_REGULAR;
} else if (inProgram->fxMagic == 0x46504368) { // 'FPCh'
programType = FXP_TYPE_OPAQUE_CHUNK;
} else {
logError("FXP preset has invalid fxMagic type");
free(inProgram);
return false;
}
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at version");
free(inProgram);
return false;
}
inProgram->version = convertBigEndianIntToPlatform(valueBuffer);
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at fxID");
free(inProgram);
return false;
}
inProgram->fxID = convertBigEndianIntToPlatform(valueBuffer);
logDebug("Preset's fxID is %d", inProgram->fxID);
if (inProgram->fxID != pluginVst2xGetUniqueId(plugin)) {
logError("Preset '%s' is not compatible with plugin '%s'",
pluginPreset->presetName->data, plugin->pluginName->data);
free(inProgram);
return false;
}
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at fxVersion");
free(inProgram);
return false;
}
inProgram->fxVersion = convertBigEndianIntToPlatform(valueBuffer);
if (inProgram->fxVersion != pluginVst2xGetVersion(plugin)) {
logWarn("Plugin has version %ld, but preset has version %d. Loading this "
"preset may result in unexpected behavior!",
pluginVst2xGetVersion(plugin), inProgram->fxVersion);
} else {
logDebug("Preset's version is %d", inProgram->fxVersion);
}
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at numParams");
free(inProgram);
return false;
}
inProgram->numParams = convertBigEndianIntToPlatform(valueBuffer);
logDebug("Preset has %d params", inProgram->numParams);
memset(inProgram->prgName, 0, sizeof(char) * 28);
numObjectsRead =
fread(inProgram->prgName, sizeof(char), 28, extraData->fileHandle);
if (numObjectsRead != 28) {
logError("Short read of FXP preset file at prgName");
free(inProgram);
return false;
}
charStringCopyCString(pluginPreset->presetName, inProgram->prgName);
logDebug("Preset's name is %s", pluginPreset->presetName->data);
if (programType == FXP_TYPE_REGULAR) {
for (i = 0; i < inProgram->numParams; i++) {
float parameterBuffer = 0.0f;
numObjectsRead =
fread(¶meterBuffer, sizeof(float), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset at parameter data");
free(inProgram);
return false;
}
parameterValue = convertBigEndianFloatToPlatform(parameterBuffer);
plugin->setParameter(plugin, i, parameterValue);
}
} else if (programType == FXP_TYPE_OPAQUE_CHUNK) {
numObjectsRead =
fread(&valueBuffer, sizeof(unsigned int), 1, extraData->fileHandle);
if (numObjectsRead != 1) {
logError("Short read of FXP preset file at chunk size");
free(inProgram);
return false;
}
inProgram->content.data.size = convertBigEndianIntToPlatform(valueBuffer);
chunkSize = inProgram->content.data.size;
if (chunkSize == 0) {
logError("FXP preset has chunk of 0 bytes");
free(inProgram);
return false;
} else {
logDebug("Plugin has chunk size of %d bytes", chunkSize);
}
chunk = (char *)malloc(sizeof(char) * chunkSize);
memset(chunk, 0, sizeof(char) * chunkSize);
numObjectsRead =
fread(chunk, sizeof(char), chunkSize, extraData->fileHandle);
if (numObjectsRead != chunkSize) {
logError("Short read of FXP preset file at chunk");
free(inProgram);
free(chunk);
return false;
}
// The chunk has been read, set it to the actual plugin
if (plugin->interfaceType == PLUGIN_TYPE_VST_2X) {
pluginVst2xSetProgramChunk(plugin, chunk, chunkSize);
free(inProgram);
free(chunk);
return true;
} else {
logInternalError("Load FXP preset to wrong plugin type");
free(inProgram);
free(chunk);
return false;
}
} else {
logInternalError("Invalid FXP program type");
free(inProgram);
return false;
}
free(inProgram);
return true;
}
static void _freePluginPresetDataFxp(void *extraDataPtr) {
PluginPresetFxpData extraData = extraDataPtr;
if (extraData->fileHandle != NULL) {
fclose(extraData->fileHandle);
}
if (extraData->chunk != NULL) {
free(extraData->chunk);
}
}
PluginPreset newPluginPresetFxp(const CharString presetName) {
PluginPreset pluginPreset = (PluginPreset)malloc(sizeof(PluginPresetMembers));
PluginPresetFxpData extraData =
(PluginPresetFxpData)malloc(sizeof(PluginPresetFxpDataMembers));
pluginPreset->presetType = PRESET_TYPE_FXP;
pluginPreset->presetName = newCharString();
charStringCopy(pluginPreset->presetName, presetName);
pluginPreset->compatiblePluginTypes = 0;
pluginPresetSetCompatibleWith(pluginPreset, PLUGIN_TYPE_VST_2X);
pluginPreset->openPreset = _openPluginPresetFxp;
pluginPreset->loadPreset = _loadPluginPresetFxp;
pluginPreset->freePresetData = _freePluginPresetDataFxp;
extraData->fileHandle = NULL;
extraData->chunk = NULL;
pluginPreset->extraData = extraData;
return pluginPreset;
}