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[codec] fix tile usage in progressive 

This is a fix for #8816. When PROGRESSIVE_SURFACE_CONTEXT.tiles were reallocated, we were
ending up with wrong tiles in PROGRESSIVE_BLOCK_REGION.tiles when the memory block was moved.
This commit is contained in:
David Fort 2023-03-23 11:15:40 +01:00 committed by akallabeth
parent 19297707e0
commit 2fed8fb62e
2 changed files with 29 additions and 23 deletions
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50
libfreerdp/codec/progressive.c
View File

@ -382,6 +382,7 @@ static void progressive_tile_free(RFX_PROGRESSIVE_TILE* tile)
winpr_aligned_free(tile->sign);
winpr_aligned_free(tile->current);
winpr_aligned_free(tile->data);
free(tile);
}
}
@ -397,7 +398,7 @@ static void progressive_surface_context_free(void* ptr)
{
for (index = 0; index < surface->tilesSize; index++)
{
RFX_PROGRESSIVE_TILE* tile = &(surface->tiles[index]);
RFX_PROGRESSIVE_TILE* tile = surface->tiles[index];
progressive_tile_free(tile);
}
}
@ -458,27 +459,32 @@ static BOOL progressive_allocate_tile_cache(PROGRESSIVE_SURFACE_CONTEXT* surface
surface->gridSize *= 2;
}
void* tmp = realloc(surface->tiles, surface->gridSize * sizeof(RFX_PROGRESSIVE_TILE*));
if (!tmp)
return FALSE;
surface->tilesSize = surface->gridSize;
surface->tiles = tmp;
BOOL allocFailed = FALSE;
for (x = oldIndex; x < surface->tilesSize; x++)
{
const RFX_PROGRESSIVE_TILE empty = { 0 };
void* tmp = realloc(surface->tiles, surface->gridSize * sizeof(RFX_PROGRESSIVE_TILE));
if (!tmp)
return FALSE;
surface->tilesSize = surface->gridSize;
surface->tiles = tmp;
for (x = oldIndex; x < surface->tilesSize; x++)
surface->tiles[x] = empty;
surface->tiles[x] = calloc(1, sizeof(RFX_PROGRESSIVE_TILE));
if (!surface->tiles[x])
/* do not break the loop so that we have all new items initialized (even to NULL) */
allocFailed = TRUE;
}
{
void* tmp = realloc(surface->updatedTileIndices, surface->gridSize * sizeof(UINT32));
if (!tmp)
return FALSE;
surface->updatedTileIndices = tmp;
for (x = oldIndex; x < surface->gridSize; x++)
surface->updatedTileIndices[x] = 0;
}
if (allocFailed)
return FALSE;
tmp = realloc(surface->updatedTileIndices, surface->gridSize * sizeof(UINT32));
if (!tmp)
return FALSE;
surface->updatedTileIndices = tmp;
for (x = oldIndex; x < surface->gridSize; x++)
surface->updatedTileIndices[x] = 0;
return TRUE;
}
@ -506,7 +512,7 @@ static PROGRESSIVE_SURFACE_CONTEXT* progressive_surface_context_new(UINT16 surfa
}
for (x = 0; x < surface->tilesSize; x++)
{
if (!progressive_tile_allocate(&surface->tiles[x]))
if (!progressive_tile_allocate(surface->tiles[x]))
{
progressive_surface_context_free(surface);
return NULL;
@ -534,7 +540,7 @@ static BOOL progressive_surface_tile_replace(PROGRESSIVE_SURFACE_CONTEXT* surfac
return FALSE;
}
t = &surface->tiles[zIdx];
t = surface->tiles[zIdx];
t->blockType = tile->blockType;
t->blockLen = tile->blockLen;
@ -2578,7 +2584,7 @@ INT32 progressive_decompress(PROGRESSIVE_CONTEXT* progressive, const BYTE* pSrcD
UINT32 nbUpdateRects, j;
const RECTANGLE_16* updateRects;
RECTANGLE_16 updateRect;
RFX_PROGRESSIVE_TILE* tile = &surface->tiles[surface->updatedTileIndices[i]];
RFX_PROGRESSIVE_TILE* tile = surface->tiles[surface->updatedTileIndices[i]];
updateRect.left = nXDst + tile->x;
updateRect.top = nYDst + tile->y;

2
libfreerdp/codec/progressive.h
View File

@ -190,7 +190,7 @@ typedef struct
UINT32 gridWidth;
UINT32 gridHeight;
UINT32 gridSize;
RFX_PROGRESSIVE_TILE* tiles;
RFX_PROGRESSIVE_TILE** tiles;
size_t tilesSize;
UINT32 frameId;
UINT32 numUpdatedTiles;