diff options
Diffstat (limited to 'engines/wintermute/BDynBuffer.cpp')
| -rw-r--r-- | engines/wintermute/BDynBuffer.cpp | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/engines/wintermute/BDynBuffer.cpp b/engines/wintermute/BDynBuffer.cpp new file mode 100644 index 0000000000..3fe99faeb1 --- /dev/null +++ b/engines/wintermute/BDynBuffer.cpp @@ -0,0 +1,192 @@ +/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+/*
+ * This file is based on WME Lite.
+ * http://dead-code.org/redir.php?target=wmelite
+ * Copyright (c) 2011 Jan Nedoma
+ */
+
+#include "BGame.h"
+#include "BDynBuffer.h"
+
+namespace WinterMute {
+
+//////////////////////////////////////////////////////////////////////////
+CBDynBuffer::CBDynBuffer(CBGame *inGame, uint32 InitSize, uint32 GrowBy): CBBase(inGame) {
+ m_Buffer = NULL;
+ m_Size = 0;
+ m_RealSize = 0;
+
+ m_Offset = 0;
+ m_InitSize = InitSize;
+ m_GrowBy = GrowBy;
+
+ m_Initialized = false;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+CBDynBuffer::~CBDynBuffer() {
+ Cleanup();
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+void CBDynBuffer::Cleanup() {
+ if (m_Buffer) free(m_Buffer);
+ m_Buffer = NULL;
+ m_Size = 0;
+ m_RealSize = 0;
+ m_Offset = 0;
+ m_Initialized = false;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+uint32 CBDynBuffer::GetSize() {
+ return m_Size;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBDynBuffer::Init(uint32 InitSize) {
+ Cleanup();
+
+ if (InitSize == 0) InitSize = m_InitSize;
+
+ m_Buffer = (byte *)malloc(InitSize);
+ if (!m_Buffer) {
+ Game->LOG(0, "CBDynBuffer::Init - Error allocating %d bytes", InitSize);
+ return E_FAIL;
+ }
+
+ m_RealSize = InitSize;
+ m_Initialized = true;
+
+ return S_OK;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBDynBuffer::PutBytes(byte *Buffer, uint32 Size) {
+ if (!m_Initialized) Init();
+
+ while (m_Offset + Size > m_RealSize) {
+ m_RealSize += m_GrowBy;
+ m_Buffer = (byte *)realloc(m_Buffer, m_RealSize);
+ if (!m_Buffer) {
+ Game->LOG(0, "CBDynBuffer::PutBytes - Error reallocating buffer to %d bytes", m_RealSize);
+ return E_FAIL;
+ }
+ }
+
+ memcpy(m_Buffer + m_Offset, Buffer, Size);
+ m_Offset += Size;
+ m_Size += Size;
+
+ return S_OK;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+HRESULT CBDynBuffer::GetBytes(byte *Buffer, uint32 Size) {
+ if (!m_Initialized) Init();
+
+ if (m_Offset + Size > m_Size) {
+ Game->LOG(0, "CBDynBuffer::GetBytes - Buffer underflow");
+ return E_FAIL;
+ }
+
+ memcpy(Buffer, m_Buffer + m_Offset, Size);
+ m_Offset += Size;
+
+ return S_OK;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+void CBDynBuffer::PutDWORD(uint32 Val) {
+ PutBytes((byte *)&Val, sizeof(uint32));
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+uint32 CBDynBuffer::GetDWORD() {
+ uint32 ret;
+ GetBytes((byte *)&ret, sizeof(uint32));
+ return ret;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+void CBDynBuffer::PutString(const char *Val) {
+ if (!Val) PutString("(null)");
+ else {
+ PutDWORD(strlen(Val) + 1);
+ PutBytes((byte *)Val, strlen(Val) + 1);
+ }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+char *CBDynBuffer::GetString() {
+ uint32 len = GetDWORD();
+ char *ret = (char *)(m_Buffer + m_Offset);
+ m_Offset += len;
+
+ if (!strcmp(ret, "(null)")) return NULL;
+ else return ret;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+void CBDynBuffer::PutText(LPCSTR fmt, ...) {
+ va_list va;
+
+ va_start(va, fmt);
+ PutTextForm(fmt, va);
+ va_end(va);
+
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+void CBDynBuffer::PutTextIndent(int Indent, LPCSTR fmt, ...) {
+ va_list va;
+
+ PutText("%*s", Indent, "");
+
+ va_start(va, fmt);
+ PutTextForm(fmt, va);
+ va_end(va);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+void CBDynBuffer::PutTextForm(const char *format, va_list argptr) {
+ char buff[32768];
+ vsprintf(buff, format, argptr);
+ PutBytes((byte *)buff, strlen(buff));
+}
+
+} // end of namespace WinterMute
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