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Diffstat (limited to 'engines')
| -rw-r--r-- | engines/agi/graphics.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/engines/agi/graphics.cpp b/engines/agi/graphics.cpp index 119ccfea1d..d08e9bb99a 100644 --- a/engines/agi/graphics.cpp +++ b/engines/agi/graphics.cpp @@ -316,6 +316,13 @@ uint32 GfxMgr::getDisplayOffsetToVisualScreenPos(int16 x, int16 y) { // Attention: uses display screen coordinates! void GfxMgr::copyDisplayRectToScreen(int16 x, int16 y, int16 width, int16 height) { + // Clamp to sane values to prevent off screen blits causing exceptions in backend + // FIXME: Add warnings / debug of clamping? + width = CLIP<int16>(width, 0, _displayScreenWidth); + height = CLIP<int16>(height, 0, _displayScreenHeight); + x = CLIP<int16>(x, 0, _displayScreenWidth-width); + y = CLIP<int16>(y, 0, _displayScreenHeight-height); + g_system->copyRectToScreen(_displayScreen + y * _displayScreenWidth + x, _displayScreenWidth, x, y, width, height); } void GfxMgr::copyDisplayRectToScreen(int16 x, int16 adjX, int16 y, int16 adjY, int16 width, int16 adjWidth, int16 height, int16 adjHeight) { |