ScummVM/scummvm
1
0
Fork 0
mirror of https://github.com/scummvm/scummvm.git synced 2026-06-20 05:45:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

DREAMWEB: implemented multiXXX vga functions

Browse Source
This commit is contained in:
Vladimir Menshakov
2011-06-15 17:33:55 +02:00
committed by Alyssa Milburn
parent 8cc8e73d1f
commit 4c54bf9799
1 changed files with 34 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
engines/dreamweb/dreamweb.cpp
+34 -3
View File
@@ -228,15 +228,46 @@ static inline DreamWeb::DreamWebEngine *engine() {
}
void multiget(Context &context) {
::error("multiget");
unsigned w = (uint8)context.cl, h = (uint8)context.ch;
unsigned pitch = (uint16)context.data.word(kScreenwidth);
unsigned src = (uint16)context.di + (uint16)context.bx * pitch;
unsigned dst = (uint16)context.si;
context.es = context.ds;
context.ds = context.data.word(kWorkspace);
//debug(1, "multiget %ux%u -> segment: %04x->%04x", w, h, (uint16)context.ds, (uint16)context.es);
for(unsigned y = 0; y < h; ++y) {
uint8 *src_p = context.ds.ptr(src + pitch * y, w);
uint8 *dst_p = context.es.ptr(dst + w * y, w);
memcpy(src_p, dst_p, w);
}
}
void multiput(Context &context) {
::error("multiput");
unsigned w = (uint8)context.cl, h = (uint8)context.ch;
unsigned pitch = (uint16)context.data.word(kScreenwidth);
unsigned src = (uint16)context.si;
unsigned dst = (uint16)context.di + (uint16)context.bx * pitch;
context.es = context.data.word(kWorkspace);
//debug(1, "multiput %ux%u -> segment: %04x->%04x", w, h, (uint16)context.ds, (uint16)context.es);
for(unsigned y = 0; y < h; ++y) {
uint8 *src_p = context.ds.ptr(src + w * y, w);
uint8 *dst_p = context.es.ptr(dst + pitch * y, w);
memcpy(src_p, dst_p, w);
}
}
void multidump(Context &context) {
::error("multidump");
unsigned w = (uint8)context.cl, h = (uint8)context.ch;
context.es = 0xa000;
context.ds = context.data.word(kWorkspace);
//debug(1, "multidump %ux%u -> segment: %04x->%04x", w, h, (uint16)context.ds, (uint16)context.es);
unsigned pitch = (uint16)context.data.word(kScreenwidth);
unsigned offset = (uint16)context.di + (uint16)context.bx * pitch;
for(unsigned y = 0; y < h; ++y, offset += pitch * y) {
uint8 *src_p = context.ds.ptr(offset, w);
uint8 *dst_p = context.es.ptr(offset, w);
memcpy(src_p, dst_p, w);
}
}
void frameoutnm(Context &context) {