From 7cb18f8e7ac47e8c8c0b738401534ec0b99c2507 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Sat, 20 Dec 2014 10:59:16 -0500
Subject: ACCESS: Fix crash in the introduction sequence

---
 engines/access/amazon/amazon_logic.cpp | 14 +++++++-------
 engines/access/asurface.cpp            |  1 +
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/engines/access/amazon/amazon_logic.cpp b/engines/access/amazon/amazon_logic.cpp
index 97bd9de650..e6a96b67d6 100644
--- a/engines/access/amazon/amazon_logic.cpp
+++ b/engines/access/amazon/amazon_logic.cpp
@@ -148,7 +148,7 @@ void CampScene::mWhileDoOpen() {
 		_vm->_animation->animate(0);
 		_vm->_animation->animate(1);
 		pan();
-		_vm->_buffer2.blitFrom(_vm->_buffer1);
+		_vm->_buffer2.copyFrom(_vm->_buffer1);
 		_vm->_newRects.clear();
 		_vm->plotList();
 		_vm->copyBlocks();
@@ -176,8 +176,8 @@ void CampScene::mWhileDoOpen() {
 	}
 
 	events.showCursor();
-	_vm->_buffer2.blitFrom(*_vm->_screen);
-	_vm->_buffer1.blitFrom(*_vm->_screen);
+	_vm->_buffer2.copyFrom(*_vm->_screen);
+	_vm->_buffer1.copyFrom(*_vm->_screen);
 
 	_vm->freeCells();
 	_vm->_oldRects.clear();
@@ -323,8 +323,8 @@ void Opening::doTitle() {
 		_vm->_files->_setPaletteFlag = false;
 		_vm->_files->loadScreen(0, 3);
 
-		_vm->_buffer2.blitFrom(*_vm->_screen);
-		_vm->_buffer1.blitFrom(*_vm->_screen);
+		_vm->_buffer2.copyFrom(*_vm->_screen);
+		_vm->_buffer1.copyFrom(*_vm->_screen);
 		screen.forceFadeIn();
 		_vm->_sound->playSound(1);
 
@@ -347,8 +347,8 @@ void Opening::doTitle() {
 		_vm->_files->loadScreen(0, 4);
 		_vm->_sound->playSound(1);
 
-		_vm->_buffer2.blitFrom(*_vm->_screen);
-		_vm->_buffer1.blitFrom(*_vm->_screen);
+		_vm->_buffer2.copyFrom(*_vm->_screen);
+		_vm->_buffer1.copyFrom(*_vm->_screen);
 		_vm->_sound->playSound(1);
 
 		const int COUNTDOWN[6] = { 2, 0x80, 1, 0x7d, 0, 0x87 };
diff --git a/engines/access/asurface.cpp b/engines/access/asurface.cpp
index e9a2e8a427..5f4372d5af 100644
--- a/engines/access/asurface.cpp
+++ b/engines/access/asurface.cpp
@@ -253,6 +253,7 @@ void ASurface::transBlitFrom(ASurface &src) {
 }
 
 void ASurface::blitFrom(Graphics::Surface &src) {
+	assert(w >= src.w && h >= src.h);
 	for (int y = 0; y < src.h; ++y) {
 		const byte *srcP = (const byte *)src.getBasePtr(0, y);
 		byte *destP = (byte *)getBasePtr(0, y);
-- 
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