diff options
Diffstat (limited to 'backends/PalmOS/Src/arm/copy_rect.cpp')
| -rw-r--r-- | backends/PalmOS/Src/arm/copy_rect.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/backends/PalmOS/Src/arm/copy_rect.cpp b/backends/PalmOS/Src/arm/copy_rect.cpp new file mode 100644 index 0000000000..64aa1df69c --- /dev/null +++ b/backends/PalmOS/Src/arm/copy_rect.cpp @@ -0,0 +1,27 @@ +#include "PACEInterfaceLib.h" +#include "ArmNative.h" +#include "endianutils.h" +#include "../shared.h" + +unsigned long OSystem_PALMOS_copy_rect(void *userData68KP) { + UInt8* dataP = (UInt8 *)userData68KP; + + UInt8 *dst = (UInt8 *)ReadUnaligned32(dataP + 2); // ->dst + UInt8 *buf = (UInt8 *)ReadUnaligned32(dataP + 6); // ->buf + UInt32 pitch = ReadUnaligned32(dataP + 10); // ->pitch + UInt32 _offScreenPitch = ReadUnaligned32(dataP + 14); // ->_offScreenPitch + UInt32 w = ReadUnaligned32(dataP + 18); // ->w + UInt32 h = ReadUnaligned32(dataP + 22); // ->h + + if (_offScreenPitch == pitch && pitch == w) { + MemMove(dst, buf, h * w); + } else { + do { + MemMove(dst, buf, w); + dst += _offScreenPitch; + buf += pitch; + } while (--h); + } + + return 0; +}
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