diff options
Diffstat (limited to 'engines/dreamweb/stubs.cpp')
| -rw-r--r-- | engines/dreamweb/stubs.cpp | 557 |
1 files changed, 557 insertions, 0 deletions
diff --git a/engines/dreamweb/stubs.cpp b/engines/dreamweb/stubs.cpp new file mode 100644 index 0000000000..5614aa391a --- /dev/null +++ b/engines/dreamweb/stubs.cpp @@ -0,0 +1,557 @@ +#include "dreamweb/dreamweb.h" +#include "engines/util.h" +#include "graphics/surface.h" + +namespace DreamGen { + +Common::String getFilename(Context &context) { + uint16 name_ptr = context.dx; + Common::String name; + uint8 c; + while((c = context.cs.byte(name_ptr++)) != 0) + name += (char)c; + return name; +} + +void DreamGenContext::multiget() { + unsigned w = (uint8)cl, h = (uint8)ch; + unsigned x = (uint16)di, y = (uint16)bx; + unsigned src = x + y * kScreenwidth; + unsigned dst = (uint16)si; + es = ds; + ds = data.word(kWorkspace); + if (y + h > 200) + h = 200 - y; + if (x + w > 320) + w = 320 - x; + //debug(1, "multiget %u,%u %ux%u -> segment: %04x->%04x", x, y, w, h, (uint16)ds, (uint16)es); + for(unsigned l = 0; l < h; ++l) { + uint8 *src_p = ds.ptr(src + kScreenwidth * l, w); + uint8 *dst_p = es.ptr(dst + w * l, w); + memcpy(dst_p, src_p, w); + } + si += w * h; + di = src + kScreenwidth * h; + cx = 0; +} + +void DreamGenContext::multiput() { + unsigned w = (uint8)cl, h = (uint8)ch; + unsigned x = (uint16)di, y = (uint16)bx; + unsigned src = (uint16)si; + unsigned dst = x + y * kScreenwidth; + es = data.word(kWorkspace); + if (y + h > 200) + h = 200 - y; + if (x + w > 320) + w = 320 - x; + //debug(1, "multiput %ux%u -> segment: %04x->%04x", w, h, (uint16)ds, (uint16)es); + for(unsigned l = 0; l < h; ++l) { + uint8 *src_p = ds.ptr(src + w * l, w); + uint8 *dst_p = es.ptr(dst + kScreenwidth * l, w); + memcpy(dst_p, src_p, w); + } + si += w * h; + di = dst + kScreenwidth * h; + cx = 0; +} + +void DreamGenContext::multidump() { + ds = data.word(kWorkspace); + int w = (uint8)cl, h = (uint8)ch; + int x = (int16)di, y = (int16)bx; + unsigned offset = x + y * kScreenwidth; + //debug(1, "multidump %ux%u(segment: %04x) -> %d,%d(address: %d)", w, h, (uint16)ds, x, y, offset); + engine->blit(ds.ptr(offset, w * h), kScreenwidth, x, y, w, h); + si = di = offset + h * kScreenwidth; + cx = 0; +} + +void DreamGenContext::worktoscreen() { + ds = data.word(kWorkspace); + uint size = 320 * 200; + engine->blit(ds.ptr(0, size), 320, 0, 0, 320, 200); + di = si = size; + cx = 0; +} + +void DreamGenContext::printundermon() { + engine->printUnderMonitor(); +} + +void DreamGenContext::cls() { + engine->cls(); +} + +void DreamGenContext::frameoutnm() { + unsigned w = (uint8)cl, h = (uint8)ch; + unsigned pitch = (uint16)dx; + unsigned src = (uint16)si; + int x = (uint16)di, y = (uint16)bx; + unsigned dst = x + y * pitch; + //debug(1, "framenm %ux%u[pitch: %u]-> %d,%d, segment: %04x->%04x", w, h, pitch, x, y, (uint16)ds, (uint16)es); + for(unsigned l = 0; l < h; ++l) { + uint8 *src_p = ds.ptr(src + w * l, w); + uint8 *dst_p = es.ptr(dst + pitch * l, w); + memcpy(dst_p, src_p, w); + } + di += dst + pitch * h; + si += w * h; + cx = 0; +} + +void DreamGenContext::seecommandtail() { + data.word(kSoundbaseadd) = 0x220; + data.byte(kSoundint) = 5; + data.byte(kSounddmachannel) = 1; + data.byte(kBrightness) = 1; + data.word(kHowmuchalloc) = 0x9360; +} + +void DreamGenContext::randomnumber() { + al = engine->randomNumber(); +} + +void DreamGenContext::quickquit() { + engine->quit(); +} + +void DreamGenContext::quickquit2() { + engine->quit(); +} + +void DreamGenContext::keyboardread() { + ::error("keyboardread"); //this keyboard int handler, must never be called +} + +void DreamGenContext::resetkeyboard() { +} + +void DreamGenContext::setkeyboardint() { +} + +void DreamGenContext::readfromfile() { + uint16 dst_offset = dx; + uint16 size = cx; + debug(1, "readfromfile(%04x:%u, %u)", (uint16)ds, dst_offset, size); + ax = engine->readFromFile(ds.ptr(dst_offset, size), size); + flags._c = false; +} + +void DreamGenContext::closefile() { + engine->closeFile(); + data.byte(kHandle) = 0; +} + +void DreamGenContext::openforsave() { + const char *name = (const char *)ds.ptr(dx, 13); + debug(1, "openforsave(%s)", name); + engine->openSaveFileForWriting(name); +} + +void DreamGenContext::openfilenocheck() { + const char *name = (const char *)ds.ptr(dx, 13); + debug(1, "checksavefile(%s)", name); + bool ok = engine->openSaveFileForReading(name); + flags._c = !ok; +} + +void DreamGenContext::openfilefromc() { + openfilenocheck(); +} + +void DreamGenContext::openfile() { + Common::String name = getFilename(*this); + debug(1, "opening file: %s", name.c_str()); + engine->openFile(name); + cs.word(kHandle) = 1; //only one handle + flags._c = false; +} + +void DreamGenContext::createfile() { + ::error("createfile"); +} + +void DreamGenContext::dontloadseg() { + ax = es.word(di); + _add(di, 2); + dx = ax; + cx = 0; + unsigned pos = engine->skipBytes(dx); + dx = pos >> 16; + ax = pos & 0xffff; + flags._c = false; +} + +void DreamGenContext::mousecall() { + engine->mouseCall(); +} + +void DreamGenContext::setmouse() { + data.word(kOldpointerx) = 0xffff; +} + +void DreamGenContext::gettime() { + TimeDate t; + g_system->getTimeAndDate(t); + debug(1, "\tgettime: %02d:%02d:%02d", t.tm_hour, t.tm_min, t.tm_sec); + ch = t.tm_hour; + cl = t.tm_min; + dh = t.tm_sec; + data.byte(kSecondcount) = dh; + data.byte(kMinutecount) = cl; + data.byte(kHourcount) = ch; +} + +void DreamGenContext::allocatemem() { + uint size = (bx + 2) * 16; + debug(1, "allocate mem, %u bytes", size); + flags._c = false; + SegmentRef seg = allocateSegment(size); + ax = (uint16)seg; + debug(1, "\tsegment address -> %04x", (uint16)ax); +} + +void DreamGenContext::deallocatemem() { + uint16 id = (uint16)es; + debug(1, "deallocating segment %04x", id); + deallocateSegment(id); + + //fixing invalid entries in the sprite table + es = data; + uint tsize = 16 * 32; + uint16 bseg = data.word(kBuffers); + if (!bseg) + return; + SegmentRef buffers(this); + buffers = bseg; + uint8 *ptr = buffers.ptr(kSpritetable, tsize); + for(uint i = 0; i < tsize; i += 32) { + uint16 seg = READ_LE_UINT16(ptr + i + 6); + //debug(1, "sprite segment = %04x", seg); + if (seg == id) + memset(ptr + i, 0xff, 32); + } +} + +void DreamGenContext::removeemm() { + ::error("removeemm"); +} + +void DreamGenContext::setupemm() { + //good place for early initialization + switch(engine->getLanguage()) { + case Common::EN_ANY: + case Common::EN_GRB: + case Common::EN_USA: + return; + default: + data.byte(kForeignrelease) = 1; + } +} + +void DreamGenContext::pitinterupt() { + ::error("pitinterupt"); +} + +void DreamGenContext::getridofpit() { + ::error("getridofpit"); +} + +void DreamGenContext::setuppit() { + ::error("setuppit"); +} + +void DreamGenContext::startdmablock() { + ::error("startdmablock"); +} + +void DreamGenContext::dmaend() { + ::error("dmaend"); +} + +void DreamGenContext::restoreems() { + ::error("restoreems"); +} + +void DreamGenContext::saveems() { + ::error("saveems"); +} + +void DreamGenContext::bothchannels() { + ::error("bothchannels"); +} + +void DreamGenContext::channel1only() { + ::error("channel1only"); +} + +void DreamGenContext::channel0only() { + ::error("channel0only"); +} + +void DreamGenContext::out22c() { + ::error("out22c"); +} + +void DreamGenContext::soundstartup() {} +void DreamGenContext::soundend() {} +void DreamGenContext::interupttest() {} +void DreamGenContext::disablesoundint() {} +void DreamGenContext::enablesoundint() {} +void DreamGenContext::checksoundint() { + data.byte(kTestresult) = 1; +} + +void DreamGenContext::setsoundoff() { + warning("setsoundoff: STUB"); +} + +void DreamGenContext::loadsample() { + engine->loadSounds(0, (const char *)data.ptr(dx, 13)); +} + +void DreamGenContext::loadsecondsample() { + uint8 ch0 = data.byte(kCh0playing); + if (ch0 >= 12 && ch0 != 255) + cancelch0(); + uint8 ch1 = data.byte(kCh1playing); + if (ch1 >= 12) + cancelch1(); + engine->loadSounds(1, (const char *)data.ptr(dx, 13)); +} + +void DreamGenContext::loadspeech() { + cancelch1(); + data.byte(kSpeechloaded) = 0; + createname(); + const char *name = (const char *)data.ptr(di, 13); + //warning("name = %s", name); + if (engine->loadSpeech(name)) + data.byte(kSpeechloaded) = 1; +} + +void DreamGenContext::saveseg() { + cx = es.word(di); + _add(di, 2); + savefilewrite(); +} + +void DreamGenContext::savefilewrite() { + ax = engine->writeToSaveFile(ds.ptr(dx, cx), cx); +} + +void DreamGenContext::savefileread() { + ax = engine->readFromSaveFile(ds.ptr(dx, cx), cx); +} + +void DreamGenContext::loadseg() { + ax = es.word(di); + di += 2; + + uint16 dst_offset = dx; + uint16 size = ax; + + debug(1, "loadseg(%04x:%u, %u)", (uint16)ds, dst_offset, size); + ax = engine->readFromFile(ds.ptr(dst_offset, size), size); + flags._c = false; +} + +void DreamGenContext::error() { + ::error("error"); +} + +void DreamGenContext::generalerror() { + ::error("generalerror"); +} + +void DreamGenContext::dosreturn() { + + _cmp(data.byte(kCommandtype), 250); + if (!flags.z()) { + data.byte(kCommandtype) = 250; + al = 46; + commandonly(); + } + + ax = data.word(kMousebutton); + _and(ax, 1); + if (flags.z()) + return; + + data.word(kMousebutton) = 0; + engine->quit(); +} + +void DreamGenContext::set16colpalette() { + //fixme: this is a bit hackish, set16colpalette called after initialization and nearly before main loop. + engine->enableSavingOrLoading(); +} + +void DreamGenContext::mode640x480() { + // Video mode 12h: 640x480 pixels, 16 colors, I believe + al = 0x12 + 128; + ah = 0; + initGraphics(640, 480, true); +} + +void DreamGenContext::showgroup() { + engine->setPalette(); +} + +void DreamGenContext::fadedos() { + engine->fadeDos(); +} + +void DreamGenContext::doshake() { + uint8 &counter = data.byte(kShakecounter); + _cmp(counter, 48); + if (flags.z()) + return; + + _add(counter, 1); + static const int shakeTable[] = { + 0, -2, 3, -2, 0, 2, 4, -1, + 1, -3, 3, 2, 0, -2, 3, -2, + 0, 2, 4, -1, 1, -3, 3, 2, + 0, -2, 3, -2, 0, 2, 4, -1, + + 1, -3, 3, 2, 0, -2, 3, -2, + 0, 2, 4, -1, 1, -3, 3, 2, + 0, -2, 3, -2, 0, 2, 4, -1, + 1, -3, 3, 2, 0, -2, 3, -2, + + 0, 2, 4, -1, 1, -3, 3, 2, + 0, -2, 3, -2, 0, 2, 4, -1, + 1, -3, 3, 2, 0, -2, 3, -2, + 0, 2, 4, -1, 1, -3, 3, 2, + + 0, -2, 3, -2, 0, 2, 4, -1, + 1, -3, 3, 0, + }; + int offset = shakeTable[counter]; + engine->setShakePos(offset >= 0? offset: -offset); +} + +void DreamGenContext::vsync() { + push(ax); + push(bx); + push(cx); + push(dx); + push(si); + push(di); + push(es); + push(ds); + engine->waitForVSync(); + ds = pop(); + es = pop(); + di = pop(); + si = pop(); + dx = pop(); + cx = pop(); + bx = pop(); + ax = pop(); +} + +void DreamGenContext::setmode() { + vsync(); + initGraphics(320, 200, false); +} + +void DreamGenContext::showpcx() { + Common::String name = getFilename(*this); + Common::File pcxFile; + + if (!pcxFile.open(name)) { + warning("showpcx: Could not open '%s'", name.c_str()); + return; + } + + uint8 *maingamepal; + int i, j; + + // Read the 16-color palette into the 'maingamepal' buffer. Note that + // the color components have to be adjusted from 8 to 6 bits. + + pcxFile.seek(16, SEEK_SET); + es = data.word(kBuffers); + maingamepal = es.ptr(kMaingamepal, 768); + pcxFile.read(maingamepal, 48); + + memset(maingamepal + 48, 0xff, 720); + for (i = 0; i < 48; i++) { + maingamepal[i] >>= 2; + } + + // Decode the image data. + + Graphics::Surface *s = g_system->lockScreen(); + Common::Rect rect(640, 480); + + s->fillRect(rect, 0); + pcxFile.seek(128, SEEK_SET); + + for (int y = 0; y < 480; y++) { + byte *dst = (byte *)s->getBasePtr(0, y); + int decoded = 0; + + while (decoded < 320) { + byte col = pcxFile.readByte(); + byte len; + + if ((col & 0xc0) == 0xc0) { + len = col & 0x3f; + col = pcxFile.readByte(); + } else { + len = 1; + } + + // The image uses 16 colors and is stored as four bit + // planes, one for each bit of the color, least + // significant bit plane first. + + for (i = 0; i < len; i++) { + int plane = decoded / 80; + int pos = decoded % 80; + + for (j = 0; j < 8; j++) { + byte bit = (col >> (7 - j)) & 1; + dst[8 * pos + j] |= (bit << plane); + } + + decoded++; + } + } + } + + g_system->unlockScreen(); + pcxFile.close(); +} + +void DreamGenContext::frameoutv() { + uint16 pitch = dx; + uint16 width = cx & 0xff; + uint16 height = cx >> 8; + uint16 stride = pitch - width; + + const uint8* src = ds.ptr(si, width * height); + uint8* base = es.ptr(di, stride * height); + uint8* dst = base + pitch * bx; + + // NB: Original code assumes non-zero width and height, "for" are unneeded, do-while would suffice but would be less readable + for (uint16 y = 0; y < height; ++y) { + for (uint16 x = 0; x < width; ++x) { + uint8 pixel = *src++; + if (pixel) + *dst = pixel; + ++dst; + } + dst += stride; + } +} + +void DreamGenContext::modifychar() { + al = engine->modifyChar(al); +} + +} /*namespace dreamgen */ |