VIDEO: Handle Truemotion dimensions specially

Truemotion uses its own demuxer and seems to follow its own AVI rules. Work around it by coercing the video's dimensions to use the codec's internal dimensions.

1 files changed, 12 insertions, 7 deletions

diff --git a/image/codecs/truemotion1.cpp b/image/codecs/truemotion1.cpp
index 741b9d51eb..e60ec6c72e 100644
--- a/image/codecs/truemotion1.cpp
+++ b/image/codecs/truemotion1.cpp
@@ -89,11 +89,8 @@ static const CompressionType compressionTypes[17] = {
 	{ ALGO_RGB24H, 2, 2, BLOCK_2x2 }
 };
 
-TrueMotion1Decoder::TrueMotion1Decoder(uint16 width, uint16 height) {
-	_surface = new Graphics::Surface();
-	_surface->create(width, height, getPixelFormat());
-	_surface->fillRect(Common::Rect(width, height), getPixelFormat().RGBToColor(0, 0, 0));
-
+TrueMotion1Decoder::TrueMotion1Decoder() {
+	_surface = 0;
 	_vertPred = 0;
 
 	_buf = _mbChangeBits = _indexStream = 0;
@@ -101,8 +98,11 @@ TrueMotion1Decoder::TrueMotion1Decoder(uint16 width, uint16 height) {
 }
 
 TrueMotion1Decoder::~TrueMotion1Decoder() {
-	_surface->free();
-	delete _surface;
+	if (_surface) {
+		_surface->free();
+		delete _surface;
+	}
+
 	delete[] _vertPred;
 }
 
@@ -194,6 +194,11 @@ void TrueMotion1Decoder::decodeHeader(Common::SeekableReadStream &stream) {
 		_vertPred = new uint32[_header.xsize];
 	}
 
+	if (!_surface) {
+		_surface = new Graphics::Surface();
+		_surface->create(_header.xsize, _header.ysize, getPixelFormat());
+	}
+
 	// There is 1 change bit per 4 pixels, so each change byte represents
 	// 32 pixels; divide width by 4 to obtain the number of change bits and
 	// then round up to the nearest byte.