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-rw-r--r--engines/scumm/he/moonbase/moonbase.cpp35
1 files changed, 26 insertions, 9 deletions
diff --git a/engines/scumm/he/moonbase/moonbase.cpp b/engines/scumm/he/moonbase/moonbase.cpp
index 4ddaa43f81..a24d1463e3 100644
--- a/engines/scumm/he/moonbase/moonbase.cpp
+++ b/engines/scumm/he/moonbase/moonbase.cpp
@@ -38,7 +38,8 @@ void Moonbase::renderFOW() {
}
void Moonbase::blitT14WizImage(uint8 *dst, int dstw, int dsth, int dstPitch, const Common::Rect *clipBox,
- uint8 *wizd, int srcx, int srcy, int rawROP, int paramROP) {
+ uint8 *wizd, int dstx, int dsty, int rawROP, int paramROP) {
+
Common::Rect rScreen(dstw, dsth);
if (clipBox) {
Common::Rect clip(clipBox->left, clipBox->top, clipBox->right, clipBox->bottom);
@@ -49,7 +50,10 @@ void Moonbase::blitT14WizImage(uint8 *dst, int dstw, int dsth, int dstPitch, con
}
}
- dst += clipBox->top * dstPitch + clipBox->left * 2;
+ int srcx = 0;
+ int srcy = 0;
+
+ dst += dsty * dstPitch + dstx * 2;
int width = READ_LE_UINT16(wizd + 0x8 + 0);
int height = READ_LE_UINT16(wizd + 0x8 + 2);
@@ -62,6 +66,13 @@ void Moonbase::blitT14WizImage(uint8 *dst, int dstw, int dsth, int dstPitch, con
uint8 *singlesOffset = READ_LE_UINT16(dataPointer + 2) + dataPointer;
uint8 *quadsOffset = READ_LE_UINT16(dataPointer + 4) + dataPointer;
+ if (i < srcy) {
+ dataPointer += lineSize;
+ dst += dstPitch;
+
+ continue;
+ }
+
int pixels = width;
byte *dst1 = dst;
byte *codes = dataPointer + 6;
@@ -72,15 +83,19 @@ void Moonbase::blitT14WizImage(uint8 *dst, int dstw, int dsth, int dstPitch, con
if (code == 0) { // quad
for (int c = 0; c < 4; c++) {
- WRITE_LE_UINT16(dst1, READ_LE_UINT16(quadsOffset));
+ if (width - pixels >= srcx) {
+ WRITE_LE_UINT16(dst1, READ_LE_UINT16(quadsOffset));
+ dst1 += 2;
+ }
quadsOffset += 2;
- dst1 += 2;
pixels--;
}
} else if (code < 0) { // single
- WRITE_LE_UINT16(dst1, READ_LE_UINT16(singlesOffset));
+ if (width - pixels >= srcx) {
+ WRITE_LE_UINT16(dst1, READ_LE_UINT16(singlesOffset));
+ dst1 += 2;
+ }
singlesOffset += 2;
- dst1 += 2;
pixels--;
} else { // skip
if ((code & 1) == 0) {
@@ -88,10 +103,12 @@ void Moonbase::blitT14WizImage(uint8 *dst, int dstw, int dsth, int dstPitch, con
dst1 += code * 2;
pixels -= code;
} else { // special case
- uint16 color = READ_LE_UINT16(singlesOffset);
- WRITE_LE_UINT16(dst1, color);
+ if (width - pixels >= srcx) {
+ uint16 color = READ_LE_UINT16(singlesOffset);
+ WRITE_LE_UINT16(dst1, color);
+ dst1 += 2;
+ }
singlesOffset += 2;
- dst1 += 2;
pixels--;
}
}