mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-21 01:08:25 +00:00
483 lines
12 KiB
C++
483 lines
12 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#include "dreamweb/dreamweb.h"
|
|
#include "dreamweb/stubs.h"
|
|
#include "engines/util.h"
|
|
#include "graphics/surface.h"
|
|
|
|
namespace DreamGen {
|
|
|
|
void DreamGenContext::multiGet() {
|
|
multiGet(ds.ptr(si, 0), di, bx, cl, ch);
|
|
si += cl * ch;
|
|
di += bx * kScreenwidth + kScreenwidth * ch;
|
|
cx = 0;
|
|
}
|
|
|
|
void DreamBase::multiGet(uint8 *dst, uint16 x, uint16 y, uint8 w, uint8 h) {
|
|
assert(x < 320);
|
|
assert(y < 200);
|
|
const uint8 *src = workspace() + x + y * kScreenwidth;
|
|
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) {
|
|
const uint8 *src_p = src + kScreenwidth * l;
|
|
uint8 *dst_p = dst + w * l;
|
|
memcpy(dst_p, src_p, w);
|
|
}
|
|
}
|
|
|
|
void DreamGenContext::multiPut() {
|
|
multiPut(ds.ptr(si, 0), di, bx, cl, ch);
|
|
si += cl * ch;
|
|
di += bx * kScreenwidth + kScreenwidth * ch;
|
|
cx = 0;
|
|
}
|
|
|
|
void DreamBase::multiPut(const uint8 *src, uint16 x, uint16 y, uint8 w, uint8 h) {
|
|
assert(x < 320);
|
|
assert(y < 200);
|
|
uint8 *dst = workspace() + x + y * kScreenwidth;
|
|
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) {
|
|
const uint8 *src_p = src + w * l;
|
|
uint8 *dst_p = dst + kScreenwidth * l;
|
|
memcpy(dst_p, src_p, w);
|
|
}
|
|
}
|
|
|
|
void DreamGenContext::multiDump() {
|
|
multiDump(di, bx, cl, ch);
|
|
unsigned offset = di + bx * kScreenwidth;
|
|
si = di = offset + ch * kScreenwidth;
|
|
cx = 0;
|
|
}
|
|
|
|
void DreamBase::multiDump(uint16 x, uint16 y, uint8 width, uint8 height) {
|
|
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(workspace() + offset, kScreenwidth, x, y, width, height);
|
|
}
|
|
|
|
void DreamBase::workToScreenCPP() {
|
|
engine->blit(workspace(), 320, 0, 0, 320, 200);
|
|
}
|
|
|
|
void DreamGenContext::workToScreen() {
|
|
workToScreenCPP();
|
|
uint size = 320 * 200;
|
|
di = si = size;
|
|
cx = 0;
|
|
}
|
|
|
|
void DreamBase::printUnderMon() {
|
|
engine->printUnderMonitor();
|
|
}
|
|
|
|
void DreamBase::cls() {
|
|
engine->cls();
|
|
}
|
|
|
|
void DreamBase::frameOutNm(uint8 *dst, const uint8 *src, uint16 pitch, uint16 width, uint16 height, uint16 x, uint16 y) {
|
|
dst += pitch * y + x;
|
|
|
|
for (uint16 j = 0; j < height; ++j) {
|
|
memcpy(dst, src, width);
|
|
dst += pitch;
|
|
src += width;
|
|
}
|
|
}
|
|
|
|
void DreamBase::frameOutBh(uint8 *dst, const uint8 *src, uint16 pitch, uint16 width, uint16 height, uint16 x, uint16 y) {
|
|
uint16 stride = pitch - width;
|
|
dst += y * pitch + x;
|
|
|
|
for (uint16 i = 0; i < height; ++i) {
|
|
for (uint16 j = 0; j < width; ++j) {
|
|
if (*dst == 0xff) {
|
|
*dst = *src;
|
|
}
|
|
++src;
|
|
++dst;
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
void DreamBase::frameOutFx(uint8 *dst, const uint8 *src, uint16 pitch, uint16 width, uint16 height, uint16 x, uint16 y) {
|
|
uint16 stride = pitch - width;
|
|
dst += y * pitch + x;
|
|
dst -= width;
|
|
|
|
for (uint16 j = 0; j < height; ++j) {
|
|
for (uint16 i = 0; i < width; ++i) {
|
|
uint8 pixel = src[width - i - 1];
|
|
if (pixel)
|
|
*dst = pixel;
|
|
++dst;
|
|
}
|
|
src += width;
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
void DreamBase::doShake() {
|
|
uint8 &counter = data.byte(kShakecounter);
|
|
if (counter == 48)
|
|
return;
|
|
|
|
++counter;
|
|
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,
|
|
};
|
|
assert(counter < ARRAYSIZE(shakeTable));
|
|
int offset = shakeTable[counter];
|
|
engine->setShakePos(offset >= 0 ? offset : -offset);
|
|
}
|
|
|
|
void DreamBase::vSync() {
|
|
engine->waitForVSync();
|
|
}
|
|
|
|
void DreamBase::setMode() {
|
|
vSync();
|
|
initGraphics(320, 200, false);
|
|
}
|
|
|
|
void DreamBase::showPCX(const Common::String &name) {
|
|
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);
|
|
mainGamePal = getSegment(data.word(kBuffers)).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 DreamBase::frameOutV(uint8 *dst, const uint8 *src, uint16 pitch, uint16 width, uint16 height, int16 x, int16 y) {
|
|
// NB : These resilience checks were not in the original engine, but did they result in undefined behaviour
|
|
// or was something broken during porting to C++?
|
|
assert(pitch == 320);
|
|
|
|
if (x < 0) {
|
|
assert(width >= -x);
|
|
width -= -x;
|
|
src += -x;
|
|
x = 0;
|
|
}
|
|
if (y < 0) {
|
|
assert(height >= -y);
|
|
height -= -y;
|
|
src += (-y) * width;
|
|
y = 0;
|
|
}
|
|
if (x >= 320)
|
|
return;
|
|
if (y >= 200)
|
|
return;
|
|
if (x + width > 320) {
|
|
width = 320 - x;
|
|
}
|
|
if (y + height > 200) {
|
|
height = 200 - y;
|
|
}
|
|
|
|
uint16 stride = pitch - width;
|
|
dst += pitch * y + x;
|
|
|
|
for (uint16 j = 0; j < height; ++j) {
|
|
for (uint16 i = 0; i < width; ++i) {
|
|
uint8 pixel = *src++;
|
|
if (pixel)
|
|
*dst = pixel;
|
|
++dst;
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
void DreamBase::showFrame(const Frame *frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag) {
|
|
uint8 width, height;
|
|
showFrame(frameData, x, y, frameNumber, effectsFlag, &width, &height);
|
|
}
|
|
|
|
void DreamBase::showFrame(const Frame *frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag, uint8 *width, uint8 *height) {
|
|
const Frame *frame = frameData + frameNumber;
|
|
if ((frame->width == 0) && (frame->height == 0)) {
|
|
*width = 0;
|
|
*height = 0;
|
|
return;
|
|
}
|
|
|
|
//notBlankShow:
|
|
if ((effectsFlag & 128) == 0) {
|
|
x += frame->x;
|
|
y += frame->y;
|
|
}
|
|
//skipOffsets:
|
|
|
|
*width = frame->width;
|
|
*height = frame->height;
|
|
const uint8 *pSrc = ((const uint8 *)frameData) + frame->ptr() + 2080;
|
|
|
|
if (effectsFlag) {
|
|
if (effectsFlag & 128) { //centred
|
|
x -= *width / 2;
|
|
y -= *height / 2;
|
|
}
|
|
if (effectsFlag & 64) { //diffDest
|
|
error("Unsupported DreamBase::showFrame effectsFlag %d", effectsFlag);
|
|
/*
|
|
frameOutFx(es.ptr(0, dx * *height), pSrc, dx, *width, *height, x, y);
|
|
return;
|
|
*/
|
|
}
|
|
if (effectsFlag & 8) { //printList
|
|
/*
|
|
push(ax);
|
|
al = x - data.word(kMapadx);
|
|
ah = y - data.word(kMapady);
|
|
//addToPrintList(); // NB: Commented in the original asm
|
|
ax = pop();
|
|
*/
|
|
}
|
|
if (effectsFlag & 4) { //flippedX
|
|
frameOutFx(workspace(), pSrc, 320, *width, *height, x, y);
|
|
return;
|
|
}
|
|
if (effectsFlag & 2) { //noMask
|
|
frameOutNm(workspace(), pSrc, 320, *width, *height, x, y);
|
|
return;
|
|
}
|
|
if (effectsFlag & 32) {
|
|
frameOutBh(workspace(), pSrc, 320, *width, *height, x, y);
|
|
return;
|
|
}
|
|
}
|
|
//noEffects:
|
|
frameOutV(workspace(), pSrc, 320, *width, *height, x, y);
|
|
return;
|
|
}
|
|
|
|
void DreamGenContext::showFrame() {
|
|
uint8 width, height;
|
|
showFrame((Frame *)ds.ptr(0, 0), di, bx, ax & 0x1ff, ah & 0xfe, &width, &height);
|
|
cl = width;
|
|
ch = height;
|
|
}
|
|
|
|
void DreamBase::clearWork() {
|
|
memset(workspace(), 0, 320*200);
|
|
}
|
|
|
|
void DreamGenContext::zoom() {
|
|
if (data.word(kWatchingtime) != 0)
|
|
return;
|
|
if (data.byte(kZoomon) != 1)
|
|
return;
|
|
if (data.byte(kCommandtype) >= 199) {
|
|
putUnderZoom();
|
|
return;
|
|
}
|
|
uint16 srcOffset = (data.word(kOldpointery) - 9) * 320 + (data.word(kOldpointerx) - 11);
|
|
uint16 dstOffset = (kZoomy + 4) * 320 + (kZoomx + 5);
|
|
const uint8 *src = workspace() + srcOffset;
|
|
uint8 *dst = workspace() + dstOffset;
|
|
for (size_t i = 0; i < 20; ++i) {
|
|
for (size_t j = 0; j < 23; ++j) {
|
|
uint8 v = src[j];
|
|
dst[2*j+0] = v;
|
|
dst[2*j+1] = v;
|
|
dst[2*j+320] = v;
|
|
dst[2*j+321] = v;
|
|
}
|
|
src += 320;
|
|
dst += 320*2;
|
|
}
|
|
crosshair();
|
|
data.byte(kDidzoom) = 1;
|
|
}
|
|
|
|
uint8 *DreamBase::mapStore() {
|
|
return getSegment(data.word(kMapstore)).ptr(0, 0);
|
|
}
|
|
|
|
void DreamBase::panelToMap() {
|
|
multiGet(mapStore(), data.word(kMapxstart) + data.word(kMapadx), data.word(kMapystart) + data.word(kMapady), data.byte(kMapxsize), data.byte(kMapysize));
|
|
}
|
|
|
|
void DreamBase::mapToPanel() {
|
|
multiPut(mapStore(), data.word(kMapxstart) + data.word(kMapadx), data.word(kMapystart) + data.word(kMapady), data.byte(kMapxsize), data.byte(kMapysize));
|
|
}
|
|
|
|
void DreamBase::dumpMap() {
|
|
multiDump(data.word(kMapxstart) + data.word(kMapadx), data.word(kMapystart) + data.word(kMapady), data.byte(kMapxsize), data.byte(kMapysize));
|
|
}
|
|
|
|
void DreamBase::transferInv() {
|
|
const Frame *freeFrames = (const Frame *)getSegment(data.word(kFreeframes)).ptr(kFrframedata, 0);
|
|
const Frame *freeFrame = freeFrames + (3 * data.byte(kItemtotran) + 1);
|
|
Frame *exFrames = (Frame *)getSegment(data.word(kExtras)).ptr(kExframedata, 0);
|
|
Frame *exFrame = exFrames + (3 * data.byte(kExpos) + 1);
|
|
exFrame->width = freeFrame->width;
|
|
exFrame->height = freeFrame->height;
|
|
exFrame->x = freeFrame->x;
|
|
exFrame->y = freeFrame->y;
|
|
uint16 byteCount = freeFrame->width * freeFrame->height;
|
|
const uint8 *src = getSegment(data.word(kFreeframes)).ptr(kFrframes + freeFrame->ptr(), byteCount);
|
|
uint8 *dst = getSegment(data.word(kExtras)).ptr(kExframes + data.word(kExframepos), byteCount);
|
|
memcpy(dst, src, byteCount);
|
|
exFrame->setPtr(data.word(kExframepos));
|
|
data.word(kExframepos) += byteCount;
|
|
}
|
|
|
|
bool DreamGenContext::pixelCheckSet(const ObjPos *pos, uint8 x, uint8 y) {
|
|
x -= pos->xMin;
|
|
y -= pos->yMin;
|
|
SetObject *setObject = getSetAd(pos->index);
|
|
Frame *frame = (Frame *)getSegment(data.word(kSetframes)).ptr(kFramedata, 0) + setObject->index;
|
|
const uint8 *ptr = getSegment(data.word(kSetframes)).ptr(kFrames, 0) + frame->ptr() + y * frame->width + x;
|
|
return *ptr != 0;
|
|
}
|
|
|
|
void DreamBase::loadPalFromIFF() {
|
|
engine->openFile("DREAMWEB.PAL");
|
|
engine->readFromFile(mapStore(), 2000);
|
|
engine->closeFile();
|
|
|
|
const uint8 *src = mapStore() + 0x30;
|
|
uint8 *dst = mainPalette();
|
|
for (size_t i = 0; i < 256*3; ++i) {
|
|
uint8 c = src[i] / 4;
|
|
if (data.byte(kBrightness) == 1) {
|
|
if (c) {
|
|
c = c + c / 2 + c / 4;
|
|
if (c > 63)
|
|
c = 63;
|
|
}
|
|
}
|
|
dst[i] = c;
|
|
}
|
|
}
|
|
|
|
void DreamBase::createPanel() {
|
|
showFrame(engine->icons2(), 0, 8, 0, 2);
|
|
showFrame(engine->icons2(), 160, 8, 0, 2);
|
|
showFrame(engine->icons2(), 0, 104, 0, 2);
|
|
showFrame(engine->icons2(), 160, 104, 0, 2);
|
|
}
|
|
|
|
void DreamBase::createPanel2() {
|
|
createPanel();
|
|
showFrame(engine->icons2(), 0, 0, 5, 2);
|
|
showFrame(engine->icons2(), 160, 0, 5, 2);
|
|
}
|
|
|
|
void DreamBase::showPanel() {
|
|
showFrame(engine->icons1(), 72, 0, 19, 0);
|
|
showFrame(engine->icons1(), 192, 0, 19, 0);
|
|
}
|
|
|
|
} // End of namespace DreamGen
|