[PATCH 2/2] dmime: Skip Segment header only if too much data

[Alistair Leslie-Hughes]

Tron 2.0 has a segment header of 56, so is missing the rtPlayStart field.

Signed-off-by: Alistair Leslie-Hughes 
---
 dlls/dmime/segment.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/dlls/dmime/segment.c b/dlls/dmime/segment.c
index f5dbf4b9959..67522c0edb6 100644
--- a/dlls/dmime/segment.c
+++ b/dlls/dmime/segment.c
@@ -743,9 +743,7 @@ static HRESULT parse_segment_form(IDirectMusicSegment8Impl *This, IStream *strea
         switch (chunk.id) {
             case DMUS_FOURCC_SEGMENT_CHUNK:
                 /* DX7, DX8 and DX9 structure sizes */
-                if (chunk.size != offsetof(DMUS_IO_SEGMENT_HEADER, rtLength) &&
-                        chunk.size != offsetof(DMUS_IO_SEGMENT_HEADER, rtLoopStart) &&
-                        chunk.size != sizeof(DMUS_IO_SEGMENT_HEADER)) {
+                if (chunk.size > sizeof(DMUS_IO_SEGMENT_HEADER)) {
                     WARN("Invalid size of %s\n", debugstr_chunk(&chunk));
                     break;
                 }

[Michael Stefaniuc]

Hello Alistair,

I have submitted a different patch that accepts DMUS_IO_SEGMENT_HEADER without 
rtPlayStart field but warns about it.
Really puzzling what was used to create those .sgt files included in Sound.rez.

bye
    michael

On 11/1/21 07:30, Alistair Leslie-Hughes wrote:
> Tron 2.0 has a segment header of 56, so is missing the rtPlayStart field.
> Signed-off-by: Alistair Leslie-Hughes
>
> dlls/dmime/segment.c | 4 +---
>   1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/dlls/dmime/segment.c b/dlls/dmime/segment.c
> index f5dbf4b9959..67522c0edb6 100644
> --- a/dlls/dmime/segment.c
> +++ b/dlls/dmime/segment.c
> @@ -743,9 +743,7 @@ static HRESULT parse_segment_form(IDirectMusicSegment8Impl *This, IStream *strea
>           switch (chunk.id) {
>               case DMUS_FOURCC_SEGMENT_CHUNK:
>                   /* DX7, DX8 and DX9 structure sizes */
> -
>            if (chunk.size != offsetof(DMUS_IO_SEGMENT_HEADER, rtLength) &&
> -
>                    chunk.size != offsetof(DMUS_IO_SEGMENT_HEADER, rtLoopStart) &&
> -
>                    chunk.size != sizeof(DMUS_IO_SEGMENT_HEADER)) {
> -
>            if (chunk.size > sizeof(DMUS_IO_SEGMENT_HEADER)) {
>                 WARN("Invalid size of %s\n", debugstr_chunk(&chunk));
>                 break;
>             }