Skip to content

Commit

Permalink
SCI: Add saved_bits/show_saved_bits console commands
Browse files Browse the repository at this point in the history
  • Loading branch information
@wjp
wjp committed Jun 11, 2011
1 parent 781132a commit 50176e7
Show file tree
Hide file tree
Showing 2 changed files with 163 additions and 0 deletions.
161 changes: 161 additions & 0 deletions engines/sci/console.cpp
View file
Expand Up @@ -131,6 +131,8 @@ Console::Console(SciEngine *engine) : GUI::Debugger(),
DCmd_Register("al", WRAP_METHOD(Console, cmdAnimateList)); // alias
DCmd_Register("window_list", WRAP_METHOD(Console, cmdWindowList));
DCmd_Register("wl", WRAP_METHOD(Console, cmdWindowList)); // alias
DCmd_Register("saved_bits", WRAP_METHOD(Console, cmdSavedBits));
DCmd_Register("show_saved_bits", WRAP_METHOD(Console, cmdShowSavedBits));
// Segments
DCmd_Register("segment_table", WRAP_METHOD(Console, cmdPrintSegmentTable));
DCmd_Register("segtable", WRAP_METHOD(Console, cmdPrintSegmentTable)); // alias
Expand Down Expand Up @@ -364,6 +366,8 @@ bool Console::cmdHelp(int argc, const char **argv) {
DebugPrintf(" undither - Enable/disable undithering\n");
DebugPrintf(" play_video - Plays a SEQ, AVI, VMD, RBT or DUK video\n");
DebugPrintf(" animate_object_list / al - Shows the current list of objects in kAnimate's draw list\n");
DebugPrintf(" saved_bits - List saved bits on the hunk\n");
DebugPrintf(" show_saved_bits - Display saved bits\n");
DebugPrintf("\n");
DebugPrintf("Segments:\n");
DebugPrintf(" segment_table / segtable - Lists all segments\n");
Expand Down Expand Up @@ -1600,6 +1604,163 @@ bool Console::cmdWindowList(int argc, const char **argv) {
return true;

}

bool Console::cmdSavedBits(int argc, const char **argv) {
SegManager *segman = _engine->_gamestate->_segMan;
SegmentId id = segman->findSegmentByType(SEG_TYPE_HUNK);
HunkTable* hunks = (HunkTable*)segman->getSegmentObj(id);
if (!hunks) {
DebugPrintf("No hunk segment found.\n");
return true;
}

Common::Array<reg_t> entries = hunks->listAllDeallocatable(id);

for (uint i = 0; i < entries.size(); ++i) {
uint16 offset = entries[i].offset;
const Hunk& h = hunks->_table[offset];
if (strcmp(h.type, "SaveBits()") == 0) {
byte* memoryPtr = (byte*)h.mem;

if (memoryPtr) {
DebugPrintf("%04x:%04x:", PRINT_REG(entries[i]));

Common::Rect rect;
byte mask;
assert(h.size >= sizeof(rect) + sizeof(mask));

memcpy((void *)&rect, memoryPtr, sizeof(rect));
memcpy((void *)&mask, memoryPtr + sizeof(rect), sizeof(mask));

DebugPrintf(" %d,%d - %d,%d", rect.top, rect.left,
rect.bottom, rect.right);
if (mask & GFX_SCREEN_MASK_VISUAL)
DebugPrintf(" visual");
if (mask & GFX_SCREEN_MASK_PRIORITY)
DebugPrintf(" priority");
if (mask & GFX_SCREEN_MASK_CONTROL)
DebugPrintf(" control");
if (mask & GFX_SCREEN_MASK_DISPLAY)
DebugPrintf(" display");
DebugPrintf("\n");
}
}
}


return true;
}

bool Console::cmdShowSavedBits(int argc, const char **argv) {
if (argc < 2) {
DebugPrintf("Display saved bits.\n");
DebugPrintf("Usage: %s <address>\n", argv[0]);
DebugPrintf("Check the \"addresses\" command on how to use addresses\n");
return true;
}

reg_t memoryHandle = NULL_REG;

if (parse_reg_t(_engine->_gamestate, argv[1], &memoryHandle, false)) {
DebugPrintf("Invalid address passed.\n");
DebugPrintf("Check the \"addresses\" command on how to use addresses\n");
return true;
}

if (memoryHandle.isNull()) {
DebugPrintf("Invalid address.\n");
return true;
}

SegManager *segman = _engine->_gamestate->_segMan;
SegmentId id = segman->findSegmentByType(SEG_TYPE_HUNK);
HunkTable* hunks = (HunkTable*)segman->getSegmentObj(id);
if (!hunks) {
DebugPrintf("No hunk segment found.\n");
return true;
}

if (memoryHandle.segment != id || !hunks->isValidOffset(memoryHandle.offset)) {
DebugPrintf("Invalid address.\n");
return true;
}

const Hunk& h = hunks->_table[memoryHandle.offset];

if (strcmp(h.type, "SaveBits()") != 0) {
DebugPrintf("Invalid address.\n");
return true;
}

byte *memoryPtr = segman->getHunkPointer(memoryHandle);

if (!memoryPtr) {
DebugPrintf("Invalid or freed bits.\n");
return true;
}

// Now we _finally_ know these are valid saved bits

Common::Rect rect;
byte mask;
assert(h.size >= sizeof(rect) + sizeof(mask));

memcpy((void *)&rect, memoryPtr, sizeof(rect));
memcpy((void *)&mask, memoryPtr + sizeof(rect), sizeof(mask));

Common::Point tl(rect.left, rect.top);
Common::Point tr(rect.right-1, rect.top);
Common::Point bl(rect.left, rect.bottom-1);
Common::Point br(rect.right-1, rect.bottom-1);

DebugPrintf(" %d,%d - %d,%d", rect.top, rect.left,
rect.bottom, rect.right);
if (mask & GFX_SCREEN_MASK_VISUAL)
DebugPrintf(" visual");
if (mask & GFX_SCREEN_MASK_PRIORITY)
DebugPrintf(" priority");
if (mask & GFX_SCREEN_MASK_CONTROL)
DebugPrintf(" control");
if (mask & GFX_SCREEN_MASK_DISPLAY)
DebugPrintf(" display");
DebugPrintf("\n");

if (!_engine->_gfxPaint16 || !_engine->_gfxScreen)
return true;

// We backup all planes, and then flash the saved bits
// FIXME: This probably won't work well with hi-res games

byte bakMask = GFX_SCREEN_MASK_VISUAL | GFX_SCREEN_MASK_PRIORITY | GFX_SCREEN_MASK_CONTROL;
int bakSize = _engine->_gfxScreen->bitsGetDataSize(rect, bakMask);
reg_t bakScreen = segman->allocateHunkEntry("show_saved_bits backup", bakSize);
byte* bakMemory = segman->getHunkPointer(bakScreen);
assert(bakMemory);
_engine->_gfxScreen->bitsSave(rect, bakMask, bakMemory);

const int paintCount = 3;
for (int i = 0; i < paintCount; ++i) {
_engine->_gfxScreen->bitsRestore(memoryPtr);
_engine->_gfxScreen->drawLine(tl, tr, 0, 255, 255);
_engine->_gfxScreen->drawLine(tr, br, 0, 255, 255);
_engine->_gfxScreen->drawLine(br, bl, 0, 255, 255);
_engine->_gfxScreen->drawLine(bl, tl, 0, 255, 255);
_engine->_gfxScreen->copyRectToScreen(rect);
g_system->updateScreen();
g_sci->sleep(500);
_engine->_gfxScreen->bitsRestore(bakMemory);
_engine->_gfxScreen->copyRectToScreen(rect);
g_system->updateScreen();
if (i < paintCount - 1)
g_sci->sleep(500);
}

_engine->_gfxPaint16->bitsFree(bakScreen);

return true;
}


bool Console::cmdParseGrammar(int argc, const char **argv) {
DebugPrintf("Parse grammar, in strict GNF:\n");

Expand Down
2 changes: 2 additions & 0 deletions engines/sci/console.h
View file
Expand Up @@ -94,6 +94,8 @@ class Console : public GUI::Debugger {
bool cmdPlayVideo(int argc, const char **argv);
bool cmdAnimateList(int argc, const char **argv);
bool cmdWindowList(int argc, const char **argv);
bool cmdSavedBits(int argc, const char **argv);
bool cmdShowSavedBits(int argc, const char **argv);
// Segments
bool cmdPrintSegmentTable(int argc, const char **argv);
bool cmdSegmentInfo(int argc, const char **argv);
Expand Down

0 comments on commit 50176e7

Please sign in to comment.