From 24536090614b563b66c2388d1066efaae4bc9286 Mon Sep 17 00:00:00 2001
From: David Lamparter <equinox@diac24.net>
Date: Sat, 6 May 2006 01:07:11 +0000
Subject: [PATCH] SubtitleProviderASA

Originally committed to SVN as r364.
---
 core/Makefile.am               |   1 +
 core/configure.ac              |   4 +-
 core/subtitle_provider_asa.cpp | 124 +++++++++++++++++++++++++++++++++
 3 files changed, 127 insertions(+), 2 deletions(-)
 create mode 100644 core/subtitle_provider_asa.cpp

diff --git a/core/Makefile.am b/core/Makefile.am
index 80ee772be..a5d6db5ce 100644
--- a/core/Makefile.am
+++ b/core/Makefile.am
@@ -76,6 +76,7 @@ aegisub_SOURCES = about.cpp \
 	subtitle_format_srt.cpp \
 	subtitle_format_txt.cpp \
 	subtitle_provider.cpp \
+	subtitle_provider_asa.cpp \
 	text_file_reader.cpp \
 	text_file_writer.cpp \
 	timeedit_ctrl.cpp \
diff --git a/core/configure.ac b/core/configure.ac
index 402d5ce15..9fc9894d2 100644
--- a/core/configure.ac
+++ b/core/configure.ac
@@ -82,12 +82,12 @@ AC_CHECK_LIB([portaudio], [Pa_Initialize],, [AC_MSG_ERROR([portaudio not found.]
 AC_CHECK_LIB([avcodec], [avcodec_init])
 AC_CHECK_LIB([avformat], [av_frac_init])
 
-PKG_CHECK_MODULES([ASA], asa = 0.0.1, [
+PKG_CHECK_MODULES([ASA], asa >= 0.3.2, [
 	CPPFLAGS="$CPPFLAGS $ASA_CFLAGS"
 	LIBS="$LIBS $ASA_LIBS"
 	AC_DEFINE(HAVE_ASA, 1, [found asa via pkg-config])
 ], [true])
-AC_CHECK_HEADERS([asa.h])
+AC_CHECK_HEADERS([asa/asa.h])
 
 PKG_CHECK_MODULES([GLIB], glib-2.0, [
 	CPPFLAGS="$CPPFLAGS $GLIB_CFLAGS"
diff --git a/core/subtitle_provider_asa.cpp b/core/subtitle_provider_asa.cpp
new file mode 100644
index 000000000..c983cc60f
--- /dev/null
+++ b/core/subtitle_provider_asa.cpp
@@ -0,0 +1,124 @@
+// Copyright (c) 2006, David Lamparter
+// 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.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// 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 OWNER 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.
+//
+// -----------------------------------------------------------------------------
+//
+// AEGISUB
+//
+// Website: http://aegisub.cellosoft.com
+// Contact: mailto:zeratul@cellosoft.com
+//
+
+
+///////////
+// Headers
+#ifdef HAVE_ASA
+
+#ifdef HAVE_ASA_ASA_H
+# include <asa/asa.h>
+#else
+# ifdef WIN32
+#  include <asa.h>
+# endif
+#endif
+
+#include "subtitle_provider.h"
+#include "video_provider.h"
+#include "ass_file.h"
+
+
+class SubtitleProviderASA : public SubtitleProvider, SubtitleProvider::Overlay {
+private:
+	class MyClass : public Class {
+	public:
+		MyClass() : Class(L"asa") { asa_init(ASA_VERSION); };
+		virtual SubtitleProvider *Get(AssFile *subs) { return new SubtitleProviderASA(subs); };
+	};
+	static MyClass me;
+
+	AssFile *subs;
+	asa_inst *inst;
+	VideoProvider *vpro;
+public:
+	SubtitleProviderASA(AssFile *_subs);
+	virtual ~SubtitleProviderASA();
+	virtual void Bind(VideoProvider *_vpro);
+
+	virtual void SetParams(int width, int height);
+	virtual void Render(wxImage &frame, int ms);
+	virtual void Unbind();
+};
+
+SubtitleProviderASA::MyClass SubtitleProviderASA::me;
+
+SubtitleProviderASA::SubtitleProviderASA(AssFile *_subs)
+{
+	const wxChar *cstr;
+
+	subs = _subs;
+	cstr = subs->GetString().c_str();
+	inst = asa_open_mem((const char *)cstr, wcslen(cstr), (enum asa_oflags)0);
+	if (!inst)
+		throw L"failed to load script with asa.";
+};
+
+SubtitleProviderASA::~SubtitleProviderASA()
+{
+	Unbind();
+	asa_close(inst);
+};
+
+void SubtitleProviderASA::Bind(VideoProvider *_vpro)
+{
+	vpro = _vpro;
+	vpro->AttachOverlay(this);
+}
+
+void SubtitleProviderASA::SetParams(int width, int height)
+{
+	asa_setsize(inst, width, height);
+}
+
+void SubtitleProviderASA::Render(wxImage &frame, int ms)
+{
+	struct asa_frame aframe;
+	aframe.csp = ASACSP_RGB;
+	aframe.bmp.rgb.fmt = ASACSPR_RGB;
+	aframe.bmp.rgb.d.d = frame.GetData();
+	aframe.bmp.rgb.d.stride = frame.GetWidth();
+	asa_render(inst, ms * 0.001, &aframe);
+}
+
+void SubtitleProviderASA::Unbind()
+{
+	if (vpro)
+		vpro->AttachOverlay(NULL);
+	vpro = NULL;
+}
+
+#endif /* HAVE_ASA */
+