thirdparty/scummvm
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added a 'width' parameter to drawBitmap (contrary to 'numstrips', it specifies the full width of the image passed in, not how much we shoul draw of it) - this will be used for the new V2 drawBitmap code; renamed drawBitmap parameter 'h' to 'height'

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svn-id: r7412
This commit is contained in:
Max Horn 2003-05-10 12:59:32 +00:00
parent 97197f95ea
commit 114af3159e
4 changed files with 35 additions and 29 deletions
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53
scumm/gfx.cpp
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@ -720,7 +720,7 @@ void Scumm::redrawBGStrip(int start, int num) {
setGfxUsageBit(s + i, USAGE_BIT_DIRTY);
gdi.drawBitmap(getResourceAddress(rtRoom, _roomResource) + _IM00_offs,
&virtscr[0], s, 0, virtscr[0].height, s, num, 0);
&virtscr[0], s, 0, virtscr[0].width, virtscr[0].height, s, num, 0);
}
void Scumm::restoreCharsetBg() {
@ -838,10 +838,10 @@ byte Scumm::isMaskActiveAt(int l, int t, int r, int b, byte *mem) {
return false;
}
void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int h,
int stripnr, int numstrip, byte flag) {
void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int width, const int height,
int stripnr, int numstrip, byte flag) {
assert(ptr);
assert(h > 0);
assert(height > 0);
byte *backbuff_ptr, *bgbak_ptr, *smap_ptr;
int i;
byte *zplane_list[9];
@ -926,18 +926,23 @@ void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int h,
smap_ptr += 24;
}
bottom = y + h;
bottom = y + height;
if (bottom > vs->height) {
warning("Gdi::drawBitmap, strip drawn to %d below window bottom %d", bottom, vs->height);
}
_vertStripNextInc = h * _vm->_realWidth - 1;
_vertStripNextInc = height * _vm->_realWidth - 1;
sx = x;
if (vs->scrollable)
sx -= vs->xstart >> 3;
do {
if (_vm->_features & GF_AFTER_V2) {
// TODO: implement new V2 strip / zplane drawing in here
//return;
}
while (numstrip--) {
CHECK_HEAP;
if (sx < 0)
@ -961,27 +966,27 @@ void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int h,
_mask_ptr = _vm->getResourceAddress(rtBuffer, 9) + (y * _numStrips + x);
if (_vm->_features & GF_AFTER_V2) {
decodeStripOldEGA(bgbak_ptr, roomptr + _vm->_egaStripOffsets[stripnr], h, stripnr);
decodeStripOldEGA(bgbak_ptr, roomptr + _vm->_egaStripOffsets[stripnr], height, stripnr);
} else if (_vm->_features & GF_16COLOR) {
decodeStripEGA(bgbak_ptr, smap_ptr + READ_LE_UINT16(smap_ptr + stripnr * 2 + 2), h);
decodeStripEGA(bgbak_ptr, smap_ptr + READ_LE_UINT16(smap_ptr + stripnr * 2 + 2), height);
} else if (_vm->_features & GF_SMALL_HEADER) {
useOrDecompress = decompressBitmap(bgbak_ptr, smap_ptr + READ_LE_UINT32(smap_ptr + stripnr * 4 + 4), h);
useOrDecompress = decompressBitmap(bgbak_ptr, smap_ptr + READ_LE_UINT32(smap_ptr + stripnr * 4 + 4), height);
} else {
useOrDecompress = decompressBitmap(bgbak_ptr, smap_ptr + READ_LE_UINT32(smap_ptr + stripnr * 4 + 8), h);
useOrDecompress = decompressBitmap(bgbak_ptr, smap_ptr + READ_LE_UINT32(smap_ptr + stripnr * 4 + 8), height);
}
CHECK_HEAP;
if (vs->alloctwobuffers) {
if (_vm->hasCharsetMask(sx << 3, y, (sx + 1) << 3, bottom)) {
if (flag & dbClear || !lightsOn)
clear8ColWithMasking(backbuff_ptr, h, _mask_ptr);
clear8ColWithMasking(backbuff_ptr, height, _mask_ptr);
else
draw8ColWithMasking(backbuff_ptr, bgbak_ptr, h, _mask_ptr);
draw8ColWithMasking(backbuff_ptr, bgbak_ptr, height, _mask_ptr);
} else {
if (flag & dbClear || !lightsOn)
clear8Col(backbuff_ptr, h);
clear8Col(backbuff_ptr, height);
else
draw8Col(backbuff_ptr, bgbak_ptr, h);
draw8Col(backbuff_ptr, bgbak_ptr, height);
}
}
CHECK_HEAP;
@ -1011,9 +1016,9 @@ void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int h,
for (i = 0; i < numzbuf; i++) {
_mask_ptr_dest = _vm->getResourceAddress(rtBuffer, 9) + y * _numStrips + x + _imgBufOffs[i];
if (useOrDecompress && (flag & dbAllowMaskOr))
decompressMaskImgOr(_mask_ptr_dest, z_plane_ptr, h);
decompressMaskImgOr(_mask_ptr_dest, z_plane_ptr, height);
else
decompressMaskImg(_mask_ptr_dest, z_plane_ptr, h);
decompressMaskImg(_mask_ptr_dest, z_plane_ptr, height);
}
} else {
for (i = 1; i < numzbuf; i++) {
@ -1043,16 +1048,16 @@ void Gdi::drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int h,
if (_vm->_features & GF_AFTER_V2)
decompressMaskImgOld(_mask_ptr_dest, roomptr + _vm->_egaStripZOffsets[stripnr], stripnr);
else if (useOrDecompress && (flag & dbAllowMaskOr)) {
decompressMaskImgOr(_mask_ptr_dest, z_plane_ptr, h);
decompressMaskImgOr(_mask_ptr_dest, z_plane_ptr, height);
} else {
decompressMaskImg(_mask_ptr_dest, z_plane_ptr, h);
decompressMaskImg(_mask_ptr_dest, z_plane_ptr, height);
}
} else {
if (!(useOrDecompress && (flag & dbAllowMaskOr)))
for (int height = 0; height < h; height++)
_mask_ptr_dest[height * _numStrips] = 0;
/* needs better abstraction, FIXME */
for (int h = 0; h < height; h++)
_mask_ptr_dest[h * _numStrips] = 0;
// FIXME: needs better abstraction
}
}
}
@ -1062,7 +1067,7 @@ next_iter:
x++;
sx++;
stripnr++;
} while (--numstrip);
}
}
void Gdi::decodeStripEGA(byte *dst, byte *src, int height) {
@ -3392,7 +3397,7 @@ void Scumm::useIm01Cursor(byte *im, int w, int h) {
vs->alloctwobuffers = false;
gdi._disable_zbuffer = true;
gdi.drawBitmap(im, vs, _screenStartStrip, 0, h, 0, w >> 3, 0);
gdi.drawBitmap(im, vs, _screenStartStrip, 0, w, h, 0, w >> 3, 0);
vs->alloctwobuffers = true;
gdi._disable_zbuffer = false;