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Add locks around CSRI operations as VSFilter isn't even vaguely threadsafe

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Originally committed to SVN as r5810.
This commit is contained in:
Thomas Goyne 2011-11-04 05:11:31 +00:00
parent 29f0786c81
commit f48bc59694
1 changed files with 12 additions and 16 deletions
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28
aegisub/src/subtitles_provider_csri.cpp
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@ -38,28 +38,29 @@
#ifdef WITH_CSRI
#include "ass_file.h"
#ifndef AGI_PRE
#include <wx/thread.h>
#endif
#include "subtitles_provider_csri.h"
#include "ass_file.h"
#include "text_file_writer.h"
#include "video_context.h"
#include "video_frame.h"
/// @brief Constructor
/// @param type
///
static wxMutex csri_mutex;
CSRISubtitlesProvider::CSRISubtitlesProvider(std::string type) : subType(type) {
}
/// @brief Destructor
///
CSRISubtitlesProvider::~CSRISubtitlesProvider() {
if (!tempfile.empty()) wxRemoveFile(tempfile);
}
/// @brief Load subtitles
/// @param subs
///
void CSRISubtitlesProvider::LoadSubtitles(AssFile *subs) {
wxMutexLocker lock(csri_mutex);
// CSRI variables
csri_rend *cur,*renderer=NULL;
@ -101,15 +102,12 @@ void CSRISubtitlesProvider::LoadSubtitles(AssFile *subs) {
}
}
/// @brief Draw subtitles
/// @param dst
/// @param time
/// @return
///
void CSRISubtitlesProvider::DrawSubtitles(AegiVideoFrame &dst,double time) {
// Check if CSRI loaded properly
if (!instance.get()) return;
wxMutexLocker lock(csri_mutex);
// Load data into frame
csri_frame frame;
if (dst.flipped) {
@ -134,8 +132,6 @@ void CSRISubtitlesProvider::DrawSubtitles(AegiVideoFrame &dst,double time) {
csri_render(instance.get(),&frame,time);
}
/// @brief Get CSRI subtypes
///
std::vector<std::string> CSRISubtitlesProvider::GetSubTypes() {
std::vector<std::string> final;
for (csri_rend *cur = csri_renderer_default();cur;cur = csri_renderer_next(cur)) {