scummvm/engines/mohawk/graphics.cpp

742 lines
25 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.
*
* $URL$
* $Id$
*
*/
#include "mohawk/resource.h"
#include "mohawk/graphics.h"
#include "mohawk/myst.h"
#include "mohawk/riven.h"
#include "mohawk/riven_cursors.h"
#include "engines/util.h"
#include "graphics/cursorman.h"
#include "graphics/primitives.h"
#include "gui/message.h"
namespace Mohawk {
Graphics::Surface *ImageData::getSurface() {
Graphics::PixelFormat pixelFormat = g_system->getScreenFormat();
Graphics::Surface *surface = new Graphics::Surface();
surface->create(_surface->w, _surface->h, pixelFormat.bytesPerPixel);
if (_surface->bytesPerPixel == 1) {
assert(_palette);
for (uint16 i = 0; i < _surface->h; i++) {
for (uint16 j = 0; j < _surface->w; j++) {
byte palIndex = *((byte *)_surface->pixels + i * _surface->pitch + j);
byte r = _palette[palIndex * 4];
byte g = _palette[palIndex * 4 + 1];
byte b = _palette[palIndex * 4 + 2];
if (pixelFormat.bytesPerPixel == 2)
*((uint16 *)surface->getBasePtr(j, i)) = pixelFormat.RGBToColor(r, g, b);
else
*((uint32 *)surface->getBasePtr(j, i)) = pixelFormat.RGBToColor(r, g, b);
}
}
} else
memcpy(surface->pixels, _surface->pixels, _surface->w * _surface->h * _surface->bytesPerPixel);
return surface;
}
MystGraphics::MystGraphics(MohawkEngine_Myst* vm) : _vm(vm) {
_bmpDecoder = new MystBitmap();
// The original version of Myst could run in 8bpp color too.
// However, it dithered videos to 8bpp and they looked considerably
// worse (than they already did :P). So we're not even going to
// support 8bpp mode in Myst (Myst ME required >8bpp anyway).
initGraphics(544, 333, true, NULL); // What an odd screen size!
_pixelFormat = _vm->_system->getScreenFormat();
if (_pixelFormat.bytesPerPixel == 1)
error("Myst requires greater than 256 colors to run");
if (_vm->getFeatures() & GF_ME) {
_jpegDecoder = new Graphics::JPEGDecoder();
_pictDecoder = new Graphics::PictDecoder(_pixelFormat);
} else {
_jpegDecoder = NULL;
_pictDecoder = NULL;
}
_pictureFile.entries = NULL;
}
MystGraphics::~MystGraphics() {
delete _bmpDecoder;
delete _jpegDecoder;
delete _pictDecoder;
}
static const char* picFileNames[] = {
"CHpics",
"",
"DUpics",
"INpics",
"MEpics",
"MYpics",
"SEpics",
"STpics",
""
};
void MystGraphics::loadExternalPictureFile(uint16 stack) {
if (_vm->getPlatform() != Common::kPlatformMacintosh)
return;
if (_pictureFile.picFile.isOpen())
_pictureFile.picFile.close();
delete[] _pictureFile.entries;
if (!scumm_stricmp(picFileNames[stack], ""))
return;
if (!_pictureFile.picFile.open(picFileNames[stack]))
error ("Could not open external picture file \'%s\'", picFileNames[stack]);
_pictureFile.pictureCount = _pictureFile.picFile.readUint32BE();
_pictureFile.entries = new PictureFile::PictureEntry[_pictureFile.pictureCount];
for (uint32 i = 0; i < _pictureFile.pictureCount; i++) {
_pictureFile.entries[i].offset = _pictureFile.picFile.readUint32BE();
_pictureFile.entries[i].size = _pictureFile.picFile.readUint32BE();
_pictureFile.entries[i].id = _pictureFile.picFile.readUint16BE();
_pictureFile.entries[i].type = _pictureFile.picFile.readUint16BE();
_pictureFile.entries[i].width = _pictureFile.picFile.readUint16BE();
_pictureFile.entries[i].height = _pictureFile.picFile.readUint16BE();
}
}
void MystGraphics::copyImageSectionToScreen(uint16 image, Common::Rect src, Common::Rect dest) {
// Clip the destination rect to the screen
if (dest.right > _vm->_system->getWidth() || dest.bottom > _vm->_system->getHeight())
dest.debugPrint(4, "Clipping destination rect to the screen:");
dest.right = CLIP<int>(dest.right, 0, _vm->_system->getWidth());
dest.bottom = CLIP<int>(dest.bottom, 0, _vm->_system->getHeight());
Graphics::Surface *surface = NULL;
// Myst ME uses JPEG/PICT images instead of compressed Windows Bitmaps for room images,
// though there are a few weird ones that use that format. For further nonsense with images,
// the Macintosh version stores images in external "picture files." We check them before
// going to check for a PICT resource.
if (_vm->getFeatures() & GF_ME && _vm->getPlatform() == Common::kPlatformMacintosh && _pictureFile.picFile.isOpen()) {
for (uint32 i = 0; i < _pictureFile.pictureCount; i++)
if (_pictureFile.entries[i].id == image) {
if (_pictureFile.entries[i].type == 0) {
Graphics::Surface *jpegSurface = _jpegDecoder->decodeImage(new Common::SeekableSubReadStream(&_pictureFile.picFile, _pictureFile.entries[i].offset, _pictureFile.entries[i].offset + _pictureFile.entries[i].size));
surface->copyFrom(*jpegSurface);
} else if (_pictureFile.entries[i].type == 1)
surface = _pictDecoder->decodeImage(new Common::SeekableSubReadStream(&_pictureFile.picFile, _pictureFile.entries[i].offset, _pictureFile.entries[i].offset + _pictureFile.entries[i].size));
else
error ("Unknown Picture File type %d", _pictureFile.entries[i].type);
break;
}
}
// We're not using the external Mac files, so it's time to delve into the main Mohawk
// archives. However, we still don't know if it's a PICT or WDIB resource. If it's Myst
// ME it's most likely a PICT, and if it's original it's definitely a WDIB. However,
// Myst ME throws us another curve ball in that PICT resources can contain WDIB's instead
// of PICT's.
if (!surface) {
bool isPict = false;
Common::SeekableReadStream *dataStream = NULL;
if (_vm->getFeatures() & GF_ME && _vm->hasResource(ID_PICT, image)) {
// The PICT resource exists. However, it could still contain a MystBitmap
// instead of a PICT image...
dataStream = _vm->getRawData(ID_PICT, image);
// Here we detect whether it's really a PICT or a WDIB. Since a MystBitmap
// would be compressed, there's no way to detect for the BM without a hack.
// So, we search for the PICT version opcode for detection.
dataStream->seek(512 + 10); // 512 byte pict header
isPict = (dataStream->readUint32BE() == 0x001102FF);
dataStream->seek(0);
} else // No PICT, so the WDIB must exist. Let's go grab it.
dataStream = _vm->getRawData(ID_WDIB, image);
if (isPict)
surface = _pictDecoder->decodeImage(dataStream);
else {
ImageData *imageData = _bmpDecoder->decodeImage(dataStream);
surface = imageData->getSurface();
delete imageData;
}
}
debug(3, "Image Blit:");
debug(3, "src.x: %d", src.left);
debug(3, "src.y: %d", src.top);
debug(3, "dest.x: %d", dest.left);
debug(3, "dest.y: %d", dest.top);
debug(3, "width: %d", src.width());
debug(3, "height: %d", src.height());
if (surface) {
uint16 width = MIN<int>(surface->w, dest.width());
uint16 height = MIN<int>(surface->h, dest.height());
_vm->_system->copyRectToScreen((byte *)surface->getBasePtr(src.left, src.top), surface->pitch, dest.left, dest.top, width, height);
surface->free();
delete surface;
}
// FIXME: Remove this and update only at certain points
_vm->_system->updateScreen();
}
void MystGraphics::copyImageToScreen(uint16 image, Common::Rect dest) {
copyImageSectionToScreen(image, Common::Rect(0, 0, 544, 333), dest);
}
void MystGraphics::showCursor(void) {
CursorMan.showMouse(true);
_vm->_needsUpdate = true;
}
void MystGraphics::hideCursor(void) {
CursorMan.showMouse(false);
_vm->_needsUpdate = true;
}
void MystGraphics::changeCursor(uint16 cursor) {
// Both Myst and Myst ME use the "MystBitmap" format for cursor images.
ImageData *data = _bmpDecoder->decodeImage(_vm->getRawData(ID_WDIB, cursor));
Common::SeekableReadStream *clrcStream = _vm->getRawData(ID_CLRC, cursor);
uint16 hotspotX = clrcStream->readUint16LE();
uint16 hotspotY = clrcStream->readUint16LE();
delete clrcStream;
// Myst ME stores some cursors as 24bpp images instead of 8bpp
if (data->_surface->bytesPerPixel == 1) {
CursorMan.replaceCursor((byte *)data->_surface->pixels, data->_surface->w, data->_surface->h, hotspotX, hotspotY, 0);
CursorMan.replaceCursorPalette(data->_palette, 0, 256);
} else
CursorMan.replaceCursor((byte *)data->_surface->pixels, data->_surface->w, data->_surface->h, hotspotX, hotspotY, _pixelFormat.RGBToColor(255, 255, 255), 1, &_pixelFormat);
_vm->_needsUpdate = true;
}
void MystGraphics::drawRect(Common::Rect rect, bool active) {
// Useful with debugging. Shows where hotspots are on the screen and whether or not they're active.
if (rect.left < 0 || rect.top < 0 || rect.right > 544 || rect.bottom > 333 || !rect.isValidRect() || rect.width() == 0 || rect.height() == 0)
return;
Graphics::Surface *screen = _vm->_system->lockScreen();
if (active)
screen->frameRect(rect, _pixelFormat.RGBToColor(0, 255, 0));
else
screen->frameRect(rect, _pixelFormat.RGBToColor(255, 0, 0));
_vm->_system->unlockScreen();
}
RivenGraphics::RivenGraphics(MohawkEngine_Riven* vm) : _vm(vm) {
_bitmapDecoder = new MohawkBitmap();
// Give me the best you've got!
initGraphics(608, 436, true, NULL);
_pixelFormat = _vm->_system->getScreenFormat();
if (_pixelFormat.bytesPerPixel == 1)
error("Riven requires greater than 256 colors to run");
// The actual game graphics only take up the first 392 rows. The inventory
// occupies the rest of the screen and we don't use the buffer to hold that.
_mainScreen = new Graphics::Surface();
_mainScreen->create(608, 392, _pixelFormat.bytesPerPixel);
_updatesEnabled = true;
_scheduledTransition = -1; // no transition
_dirtyScreen = false;
_inventoryDrawn = false;
}
RivenGraphics::~RivenGraphics() {
_mainScreen->free();
delete _mainScreen;
delete _bitmapDecoder;
}
void RivenGraphics::copyImageToScreen(uint16 image, uint32 left, uint32 top, uint32 right, uint32 bottom) {
// First, decode the image and get the high color surface
ImageData *imageData = _bitmapDecoder->decodeImage(_vm->getRawData(ID_TBMP, image));
Graphics::Surface *surface = imageData->getSurface();
delete imageData;
// Clip the width to fit on the screen. Fixes some images.
if (left + surface->w > 608)
surface->w = 608 - left;
for (uint16 i = 0; i < surface->h; i++)
memcpy(_mainScreen->getBasePtr(left, i + top), surface->getBasePtr(0, i), surface->w * surface->bytesPerPixel);
surface->free();
delete surface;
_dirtyScreen = true;
}
void RivenGraphics::drawPLST(uint16 x) {
Common::SeekableReadStream* plst = _vm->getRawData(ID_PLST, _vm->getCurCard());
uint16 index, id, left, top, right, bottom;
uint16 recordCount = plst->readUint16BE();
for (uint16 i = 0; i < recordCount; i++) {
index = plst->readUint16BE();
id = plst->readUint16BE();
left = plst->readUint16BE();
top = plst->readUint16BE();
right = plst->readUint16BE();
bottom = plst->readUint16BE();
// We are also checking here to make sure we haven't drawn the image yet on screen.
// This fixes problems with drawing PLST 1 twice and some other images twice. PLST
// 1 is sometimes not called by the scripts, so some cards don't appear if we don't
// draw PLST 1 each time. This "hack" is here to catch any PLST attempting to draw
// twice. There should never be a problem with doing it this way.
if (index == x && !(Common::find(_activatedPLSTs.begin(), _activatedPLSTs.end(), x) != _activatedPLSTs.end())) {
debug (0, "Drawing image %d", id);
copyImageToScreen(id, left, top, right, bottom);
_activatedPLSTs.push_back(x);
break;
}
}
delete plst;
}
void RivenGraphics::updateScreen() {
if (_updatesEnabled) {
_vm->runUpdateScreenScript();
if (_dirtyScreen) {
_activatedPLSTs.clear();
// Copy to screen if there's no transition. Otherwise transition. ;)
if (_scheduledTransition < 0)
_vm->_system->copyRectToScreen((byte *)_mainScreen->pixels, _mainScreen->pitch, 0, 0, _mainScreen->w, _mainScreen->h);
else
runScheduledTransition();
// Finally, update the screen.
_vm->_system->updateScreen();
_dirtyScreen = false;
}
}
}
void RivenGraphics::scheduleWaterEffect(uint16 sfxeID) {
Common::SeekableReadStream *sfxeStream = _vm->getRawData(ID_SFXE, sfxeID);
if (sfxeStream->readUint16BE() != 'SL')
error ("Unknown sfxe tag");
// Read in header info
SFXERecord sfxeRecord;
sfxeRecord.frameCount = sfxeStream->readUint16BE();
uint32 offsetTablePosition = sfxeStream->readUint32BE();
sfxeRecord.rect.left = sfxeStream->readUint16BE();
sfxeRecord.rect.top = sfxeStream->readUint16BE();
sfxeRecord.rect.right = sfxeStream->readUint16BE();
sfxeRecord.rect.bottom = sfxeStream->readUint16BE();
sfxeRecord.speed = sfxeStream->readUint16BE();
// Skip the rest of the fields...
// Read in offsets
sfxeStream->seek(offsetTablePosition);
uint32 *frameOffsets = new uint32[sfxeRecord.frameCount];
for (uint16 i = 0; i < sfxeRecord.frameCount; i++)
frameOffsets[i] = sfxeStream->readUint32BE();
sfxeStream->seek(frameOffsets[0]);
// Read in the scripts
for (uint16 i = 0; i < sfxeRecord.frameCount; i++)
sfxeRecord.frameScripts.push_back(sfxeStream->readStream((i == sfxeRecord.frameCount - 1) ? sfxeStream->size() - frameOffsets[i] : frameOffsets[i + 1] - frameOffsets[i]));
// Set it to the first frame
sfxeRecord.curFrame = 0;
sfxeRecord.lastFrameTime = 0;
delete[] frameOffsets;
delete sfxeStream;
_waterEffects.push_back(sfxeRecord);
}
void RivenGraphics::clearWaterEffects() {
_waterEffects.clear();
}
bool RivenGraphics::runScheduledWaterEffects() {
// Don't run the effect if it's disabled
if (*_vm->matchVarToString("waterenabled") == 0)
return false;
Graphics::Surface *screen = NULL;
for (uint16 i = 0; i < _waterEffects.size(); i++) {
if (_vm->_system->getMillis() > _waterEffects[i].lastFrameTime + 1000 / _waterEffects[i].speed) {
// Lock the screen!
if (!screen)
screen = _vm->_system->lockScreen();
// Make sure the script is at the starting point
Common::SeekableReadStream *script = _waterEffects[i].frameScripts[_waterEffects[i].curFrame];
if (script->pos() != 0)
script->seek(0);
// Run script
uint16 curRow = 0;
for (uint16 op = script->readUint16BE(); op != 4; op = script->readUint16BE()) {
if (op == 1) { // Increment Row
curRow++;
} else if (op == 3) { // Copy Pixels
uint16 dstLeft = script->readUint16BE();
uint16 srcLeft = script->readUint16BE();
uint16 srcTop = script->readUint16BE();
uint16 rowWidth = script->readUint16BE();
memcpy ((byte *)screen->getBasePtr(dstLeft, curRow + _waterEffects[i].rect.top), (byte *)_mainScreen->getBasePtr(srcLeft, srcTop), rowWidth * _pixelFormat.bytesPerPixel);
} else if (op != 4) { // End of Script
error ("Unknown SFXE opcode %d", op);
}
}
// Increment frame
_waterEffects[i].curFrame++;
if (_waterEffects[i].curFrame == _waterEffects[i].frameCount)
_waterEffects[i].curFrame = 0;
// Set the new time
_waterEffects[i].lastFrameTime = _vm->_system->getMillis();
}
}
// Unlock the screen if it has been locked and return true to update the screen
if (screen) {
_vm->_system->unlockScreen();
return true;
}
return false;
}
void RivenGraphics::scheduleTransition(uint16 id, Common::Rect rect) {
_scheduledTransition = id;
_transitionRect = rect;
}
void RivenGraphics::runScheduledTransition() {
if (_scheduledTransition < 0) // No transition is scheduled
return;
// TODO: There's a lot to be done here...
// Note: Transitions 0-11 are actual transitions, but none are used in-game.
// There's no point in implementing them if they're not used. These extra
// transitions were found by hacking scripts.
switch (_scheduledTransition) {
case 0: // Swipe Left
case 1: // Swipe Right
case 2: // Swipe Up
case 3: // Swipe Down
case 12: // Pan Left
case 13: // Pan Right
case 14: // Pan Up
case 15: // Pan Down
case 16: // Dissolve
case 17: // Dissolve (tspit CARD 155)
break;
default:
if (_scheduledTransition >= 4 && _scheduledTransition <= 11)
error("Found unused transition %d", _scheduledTransition);
else
error("Found unknown transition %d", _scheduledTransition);
}
// For now, just copy the image to screen without doing any transition.
_vm->_system->copyRectToScreen((byte *)_mainScreen->pixels, _mainScreen->pitch, 0, 0, _mainScreen->w, _mainScreen->h);
_vm->_system->updateScreen();
_scheduledTransition = -1; // Clear scheduled transition
}
// TODO: Marble Cursors/Palettes
void RivenGraphics::changeCursor(uint16 num) {
// All of Riven's cursors are hardcoded. See riven_cursors.h for these definitions.
switch (num) {
case 1002:
// Zip Mode
CursorMan.replaceCursor(zipModeCursor, 16, 16, 8, 8, 0);
CursorMan.replaceCursorPalette(zipModeCursorPalette, 1, ARRAYSIZE(zipModeCursorPalette) / 4);
break;
case 2003:
// Hand Over Object
CursorMan.replaceCursor(objectHandCursor, 16, 16, 8, 8, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 2004:
// Grabbing/Using Object
CursorMan.replaceCursor(grabbingHandCursor, 13, 13, 6, 6, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3000:
// Standard Hand
CursorMan.replaceCursor(standardHandCursor, 15, 16, 6, 0, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3001:
// Pointing Left
CursorMan.replaceCursor(pointingLeftCursor, 15, 13, 0, 3, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3002:
// Pointing Right
CursorMan.replaceCursor(pointingRightCursor, 15, 13, 14, 3, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3003:
// Pointing Down (Palm Up)
CursorMan.replaceCursor(pointingDownCursorPalmUp, 13, 16, 3, 15, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3004:
// Pointing Up (Palm Up)
CursorMan.replaceCursor(pointingUpCursorPalmUp, 13, 16, 3, 0, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3005:
// Pointing Left (Curved)
CursorMan.replaceCursor(pointingLeftCursorBent, 15, 13, 0, 5, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3006:
// Pointing Right (Curved)
CursorMan.replaceCursor(pointingRightCursorBent, 15, 13, 14, 5, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 3007:
// Pointing Down (Palm Down)
CursorMan.replaceCursor(pointingDownCursorPalmDown, 15, 16, 7, 15, 0);
CursorMan.replaceCursorPalette(handCursorPalette, 1, ARRAYSIZE(handCursorPalette) / 4);
break;
case 4001:
// Red Marble
break;
case 4002:
// Orange Marble
break;
case 4003:
// Yellow Marble
break;
case 4004:
// Green Marble
break;
case 4005:
// Blue Marble
break;
case 4006:
// Purple Marble
break;
case 5000:
// Pellet
CursorMan.replaceCursor(pelletCursor, 8, 8, 4, 4, 0);
CursorMan.replaceCursorPalette(pelletCursorPalette, 1, ARRAYSIZE(pelletCursorPalette) / 4);
break;
case 9000:
// Hide Cursor
CursorMan.showMouse(false);
break;
default:
error ("Cursor %d does not exist!", num);
}
if (num != 9000) // Show Cursor
CursorMan.showMouse(true);
// Should help in cases where we need to hide the cursor immediately.
_vm->_system->updateScreen();
}
void RivenGraphics::showInventory() {
// Don't redraw the inventory
if (_inventoryDrawn)
return;
// Clear the inventory area
clearInventoryArea();
// The demo doesn't have the inventory system and we don't want
// to show the inventory on setup screens or in other journals.
if (_vm->getFeatures() & GF_DEMO || _vm->getCurStack() == aspit)
return;
// There are three books and three vars. We have three different
// combinations. At the start you have just Atrus' journal. Later,
// you get Catherine's journal and the trap book. Near the end,
// you lose the trap book and have just the two journals.
bool hasCathBook = *_vm->matchVarToString("acathbook") != 0;
bool hasTrapBook = *_vm->matchVarToString("atrapbook") != 0;
if (!hasCathBook) {
drawInventoryImage(101, g_atrusJournalRect1);
} else if (!hasTrapBook) {
drawInventoryImage(101, g_atrusJournalRect2);
drawInventoryImage(102, g_cathJournalRect2);
} else {
drawInventoryImage(101, g_atrusJournalRect3);
drawInventoryImage(102, g_cathJournalRect3);
drawInventoryImage(100, g_trapBookRect3);
}
_vm->_system->updateScreen();
_inventoryDrawn = true;
}
void RivenGraphics::hideInventory() {
// Don't hide the inventory twice
if (!_inventoryDrawn)
return;
// Clear the area
clearInventoryArea();
_inventoryDrawn = false;
}
void RivenGraphics::clearInventoryArea() {
// Clear the inventory area
static const Common::Rect inventoryRect = Common::Rect(0, 392, 608, 436);
// Lock the screen
Graphics::Surface *screen = _vm->_system->lockScreen();
// Fill the inventory area with black
screen->fillRect(inventoryRect, _pixelFormat.RGBToColor(0, 0, 0));
_vm->_system->unlockScreen();
}
void RivenGraphics::drawInventoryImage(uint16 id, const Common::Rect *rect) {
ImageData *imageData = _bitmapDecoder->decodeImage(_vm->getExtrasResource(ID_TBMP, id));
Graphics::Surface *surface = imageData->getSurface();
delete imageData;
_vm->_system->copyRectToScreen((byte *)surface->pixels, surface->pitch, rect->left, rect->top, surface->w, surface->h);
surface->free();
delete surface;
}
void RivenGraphics::drawRect(Common::Rect rect, bool active) {
// Useful with debugging. Shows where hotspots are on the screen and whether or not they're active.
Graphics::Surface *screen = _vm->_system->lockScreen();
if (active)
screen->frameRect(rect, _pixelFormat.RGBToColor(0, 255, 0));
else
screen->frameRect(rect, _pixelFormat.RGBToColor(255, 0, 0));
_vm->_system->unlockScreen();
}
LBGraphics::LBGraphics(MohawkEngine_LivingBooks *vm) : _vm(vm) {
_bmpDecoder = (_vm->getGameType() == GType_LIVINGBOOKSV1) ? new OldMohawkBitmap() : new MohawkBitmap();
_palette = new byte[256 * 4];
memset(_palette, 0, 256 * 4);
}
LBGraphics::~LBGraphics() {
delete _bmpDecoder;
delete[] _palette;
}
void LBGraphics::copyImageToScreen(uint16 image, uint16 left, uint16 right) {
if (_vm->getGameType() == GType_LIVINGBOOKSV1) {
// Drawing images in the old format isn't supported (yet)
ImageData *imageData = _bmpDecoder->decodeImage(_vm->wrapStreamEndian(ID_BMAP, image));
delete imageData;
} else {
ImageData *imageData = _bmpDecoder->decodeImage(_vm->getRawData(ID_TBMP, image));
imageData->_palette = _palette;
Graphics::Surface *surface = imageData->getSurface();
imageData->_palette = NULL; // Unset the palette so it doesn't get deleted
delete imageData;
uint16 width = MIN<int>(surface->w, 640);
uint16 height = MIN<int>(surface->h, 480);
_vm->_system->copyRectToScreen((byte *)surface->pixels, surface->pitch, left, right, width, height);
surface->free();
delete surface;
// FIXME: Remove this and update only at certain points
_vm->_system->updateScreen();
}
}
void LBGraphics::setPalette(uint16 id) {
// Old Living Books gamnes use the old CTBL-style palette format while newer
// games use the better tPAL format which can store partial palettes.
if (_vm->getGameType() == GType_LIVINGBOOKSV1) {
Common::SeekableSubReadStreamEndian *ctblStream = _vm->wrapStreamEndian(ID_CTBL, id);
uint16 colorCount = ctblStream->readUint16();
for (uint16 i = 0; i < colorCount; i++) {
_palette[i * 4] = ctblStream->readByte();
_palette[i * 4 + 1] = ctblStream->readByte();
_palette[i * 4 + 2] = ctblStream->readByte();
_palette[i * 4 + 3] = ctblStream->readByte();
}
delete ctblStream;
} else {
Common::SeekableReadStream *tpalStream = _vm->getRawData(ID_TPAL, id);
uint16 colorStart = tpalStream->readUint16BE();
uint16 colorCount = tpalStream->readUint16BE();
for (uint16 i = colorStart; i < colorStart + colorCount; i++) {
_palette[i * 4] = tpalStream->readByte();
_palette[i * 4 + 1] = tpalStream->readByte();
_palette[i * 4 + 2] = tpalStream->readByte();
_palette[i * 4 + 3] = tpalStream->readByte();
}
delete tpalStream;
}
}
} // End of namespace Mohawk