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|
/* 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 "startrek/common.h"
#include "startrek/graphics.h"
#include "common/algorithm.h"
#include "common/config-manager.h"
#include "common/events.h"
#include "common/rendermode.h"
#include "graphics/cursorman.h"
#include "graphics/palette.h"
#include "graphics/surface.h"
namespace StarTrek {
Graphics::Graphics(StarTrekEngine *vm) : _vm(vm), _egaMode(false) {
_font = nullptr;
_egaData = nullptr;
_lutData = nullptr;
for (int i = 0; i < 32; ++i) {
_sprites[i] = nullptr;
_pushedSprites[i] = nullptr;
}
_screenRect = Common::Rect(SCREEN_WIDTH, SCREEN_HEIGHT);
if (ConfMan.hasKey("render_mode"))
_egaMode = (Common::parseRenderMode(ConfMan.get("render_mode").c_str()) == Common::kRenderEGA) && (_vm->getGameType() != GType_STJR) && !(_vm->getFeatures() & GF_DEMO);
if (_vm->getGameType() == GType_ST25 && _vm->getPlatform() == Common::kPlatformDOS)
_font = new Font(_vm);
_numSprites = 0;
_pushedNumSprites = -1;
_palData = new byte[256 * 3];
_lutData = new byte[256 * 3];
memset(_palData, 0, 256 * 3);
memset(_lutData, 0, 256 * 3);
_paletteFadeLevel = 0;
_mouseLocked = false;
_mouseToBeShown = false;
_mouseToBeHidden = false;
_mouseWarpX = -1;
_mouseWarpY = -1;
setMouseBitmap(loadBitmap("pushbtn"));
CursorMan.showMouse(true);
}
Graphics::~Graphics() {
delete[] _egaData;
delete[] _palData;
delete[] _lutData;
delete _font;
}
void Graphics::setBackgroundImage(SharedPtr<Bitmap> bitmap) {
_backgroundImage = SharedPtr<Bitmap>(new Bitmap(*bitmap));
}
void Graphics::drawBitmapToBackground(const Common::Rect &origRect, const Common::Rect &drawRect, SharedPtr<Bitmap> bitmap) {
byte *dest = _backgroundImage->pixels + drawRect.top * SCREEN_WIDTH + drawRect.left;
byte *src = bitmap->pixels + (drawRect.left - origRect.left)
+ (drawRect.top - origRect.top) * bitmap->width;
for (int y = drawRect.top; y < drawRect.bottom; y++) {
for (int x = drawRect.left; x < drawRect.right; x++) {
byte b = *src;
if (b != 0)
*dest = b;
src++;
dest++;
}
src += bitmap->width - drawRect.width();
dest += SCREEN_WIDTH - drawRect.width();
}
}
void Graphics::fillBackgroundRect(const Common::Rect &rect, byte color) {
byte *dest = _backgroundImage->pixels + rect.top * SCREEN_WIDTH + rect.left;
for (int y = rect.top; y < rect.bottom; y++) {
memset(dest, color, rect.width());
dest += SCREEN_WIDTH;
}
}
byte *Graphics::getBackgroundPixels() {
return _backgroundImage->pixels;
}
byte *Graphics::lockScreenPixels() {
return (byte *)_vm->_system->lockScreen()->getPixels();
}
void Graphics::unlockScreenPixels() {
_vm->_system->unlockScreen();
}
void Graphics::clearScreenAndPriBuffer() {
Common::fill(_priData, _priData + sizeof(_priData), 0);
::Graphics::Surface *surface = _vm->_system->lockScreen();
surface->fillRect(_screenRect, 0);
_vm->_system->unlockScreen();
_vm->_system->updateScreen();
_vm->_system->delayMillis(10);
}
void Graphics::loadPalette(const Common::String &paletteName) {
// Set the palette from a PAL file
Common::String palFile = paletteName + ".PAL";
Common::String lutFile = paletteName + ".LUT";
FileStream palStream = _vm->loadFile(palFile.c_str());
palStream->read(_palData, 256 * 3);
// Load LUT file
FileStream lutStream = _vm->loadFile(lutFile.c_str());
lutStream->read(_lutData, 256);
}
void Graphics::copyRectBetweenBitmaps(Bitmap *destBitmap, int destX, int destY, Bitmap *srcBitmap, int srcX, int srcY, int width, int height) {
byte *src = srcBitmap->pixels + srcX + srcY * srcBitmap->width;
byte *dest = destBitmap->pixels + destX + destY * destBitmap->width;
for (int y = 0; y < height; y++) {
memcpy(dest, src, width);
src += srcBitmap->width;
dest += destBitmap->width;
}
}
void Graphics::fadeinScreen() {
while (_paletteFadeLevel <= 100) {
TrekEvent event;
_vm->waitForNextTick();
setPaletteFadeLevel(_palData, _paletteFadeLevel);
_paletteFadeLevel += 10;
}
_paletteFadeLevel = 100;
}
void Graphics::fadeoutScreen() {
while (_paletteFadeLevel >= 0) {
TrekEvent event;
_vm->waitForNextTick();
setPaletteFadeLevel(_palData, _paletteFadeLevel);
_paletteFadeLevel -= 10;
}
_paletteFadeLevel = 0;
}
void Graphics::setPaletteFadeLevel(byte *palData, int fadeLevel) {
byte palBuffer[256 * 3];
int multiplier = (fadeLevel << 8) / 100;
for (uint16 i = 0; i < 256 * 3; i++) {
palBuffer[i] = (palData[i] * multiplier) >> 8;
// Expand color components
if (_vm->getPlatform() == Common::kPlatformDOS || _vm->getPlatform() == Common::kPlatformMacintosh)
palBuffer[i] <<= 2;
}
_vm->_system->getPaletteManager()->setPalette(palBuffer, 0, 256);
// FIXME: this isn't supposed to flush changes to graphics, only palettes.
// Might not matter...
_vm->_system->updateScreen();
_vm->_system->delayMillis(10);
}
void Graphics::incPaletteFadeLevel() {
if (_paletteFadeLevel < 100) {
_paletteFadeLevel += 10;
setPaletteFadeLevel(_palData, _paletteFadeLevel);
}
}
void Graphics::decPaletteFadeLevel() {
if (_paletteFadeLevel > 0) {
_paletteFadeLevel -= 10;
setPaletteFadeLevel(_palData, _paletteFadeLevel);
}
}
void Graphics::loadPri(const Common::String &priFile) {
FileStream priStream = _vm->loadFile(priFile + ".pri");
priStream->read(_priData, SCREEN_WIDTH * SCREEN_HEIGHT / 2);
}
void Graphics::clearPri() {
memset(_priData, 0, sizeof(_priData));
}
void Graphics::setPri(byte val) {
memset(_priData, val, sizeof(_priData));
}
byte Graphics::getPriValue(int x, int y) {
assert(_screenRect.contains(x, y));
int priOffset = y * SCREEN_WIDTH + x;
byte b = _priData[priOffset / 2];
if ((priOffset % 2) == 1)
return b & 0xf;
else
return b >> 4;
}
SharedPtr<Bitmap> Graphics::loadBitmap(Common::String basename) {
return SharedPtr<Bitmap>(new Bitmap(_vm->loadFile(basename + ".BMP")));
}
Common::Point Graphics::getMousePos() {
if (_mouseWarpX != -1)
return Common::Point(_mouseWarpX, _mouseWarpY);
return _vm->_system->getEventManager()->getMousePos();
}
void Graphics::setMouseBitmap(SharedPtr<Bitmap> bitmap) {
_mouseBitmap = bitmap;
if (_mouseLocked)
_lockedMouseSprite.setBitmap(_mouseBitmap);
}
void Graphics::lockMousePosition(int16 x, int16 y) {
if (_mouseLocked) {
if (x != _lockedMouseSprite.pos.x || y != _lockedMouseSprite.pos.y) {
_lockedMouseSprite.pos.x = x;
_lockedMouseSprite.pos.y = y;
_lockedMouseSprite.bitmapChanged = true;
}
return;
}
_mouseLocked = true;
_mouseToBeHidden = true;
_mouseToBeShown = false;
_lockedMouseSprite = Sprite();
_lockedMouseSprite.setBitmap(_mouseBitmap);
_lockedMouseSprite.drawPriority = 15;
_lockedMouseSprite.drawPriority2 = 16;
_lockedMouseSprite.pos.x = x;
_lockedMouseSprite.pos.y = y;
addSprite(&_lockedMouseSprite);
}
void Graphics::unlockMousePosition() {
if (!_mouseLocked)
return;
_mouseLocked = false;
_mouseToBeShown = true;
_mouseToBeHidden = false;
_lockedMouseSprite.dontDrawNextFrame();
drawAllSprites(false);
delSprite(&_lockedMouseSprite);
}
SharedPtr<Bitmap> Graphics::getMouseBitmap() {
return _mouseBitmap;
}
void Graphics::warpMouse(int16 x, int16 y) {
_mouseWarpX = x;
_mouseWarpY = y;
}
void Graphics::drawSprite(const Sprite &sprite, ::Graphics::Surface *surface) {
int left = sprite.drawX;
int top = sprite.drawY;
int right = left + sprite.bitmap->width;
int bottom = top + sprite.bitmap->height;
drawSprite(sprite, surface, Common::Rect(left, top, right, bottom));
}
// rect is the portion of the sprite to update. It must be entirely contained within the
// sprite's actual, full rectangle.
void Graphics::drawSprite(const Sprite &sprite, ::Graphics::Surface *surface, const Common::Rect &rect, int rectLeft, int rectTop) {
Common::Rect spriteRect = Common::Rect(sprite.drawX, sprite.drawY,
sprite.drawX + sprite.bitmap->width, sprite.drawY + sprite.bitmap->height);
assert(_screenRect.contains(rect));
assert(spriteRect.contains(rect));
byte *dest = (byte *)surface->getPixels() + (rect.top - rectTop) * SCREEN_WIDTH + (rect.left - rectLeft);
switch (sprite.drawMode) {
case 0: { // Normal sprite
byte *src = sprite.bitmap->pixels + (rect.left - sprite.drawX)
+ (rect.top - sprite.drawY) * sprite.bitmap->width;
int priOffset = rect.top * SCREEN_WIDTH + rect.left;
for (int y = rect.top; y < rect.bottom; y++) {
for (int x = rect.left; x < rect.right; x++) {
byte priByte = _priData[priOffset / 2];
byte bgPriority;
if ((priOffset % 2) == 1)
bgPriority = priByte & 0xf;
else
bgPriority = priByte >> 4;
priOffset++;
byte b = *src++;
if (b == 0 || sprite.drawPriority < bgPriority) {
dest++;
continue;
}
*dest++ = b;
}
src += sprite.bitmap->width - rect.width();
dest += SCREEN_WIDTH - rect.width();
priOffset += SCREEN_WIDTH - rect.width();
}
break;
}
case 1: // Invisible
break;
case 2: { // Normal sprite with darkened background for "transparent" pixels (and no priority)
byte *src = sprite.bitmap->pixels + (rect.left - sprite.drawX)
+ (rect.top - sprite.drawY) * sprite.bitmap->width;
for (int y = rect.top; y < rect.bottom; y++) {
for (int x = rect.left; x < rect.right; x++) {
byte b = *src;
if (b == 0) // Transparent (darken the pixel)
*dest = _lutData[*dest];
else // Solid color
*dest = b;
src++;
dest++;
}
src += sprite.bitmap->width - rect.width();
dest += SCREEN_WIDTH - rect.width();
}
break;
}
case 3: { // Text
// The sprite's "bitmap" is not actually a bitmap, but instead the list of
// characters to display.
// Units of this rect are "characters" instead of pixels. This contains all
// characters to be drawn.
Common::Rect rectangle1;
rectangle1.left = (rect.left - sprite.drawX) / 8;
rectangle1.top = (rect.top - sprite.drawY) / 8;
rectangle1.right = (rect.right - sprite.drawX + 7) / 8;
rectangle1.bottom = (rect.bottom - sprite.drawY + 7) / 8;
int drawWidth = rectangle1.width();
int drawHeight = rectangle1.height();
dest = (byte *)surface->getPixels() + sprite.drawY * SCREEN_WIDTH + sprite.drawX
+ rectangle1.top * 8 * SCREEN_WIDTH + rectangle1.left * 8;
byte *src = sprite.bitmap->pixels + rectangle1.top * sprite.bitmap->width / 8 + rectangle1.left;
for (int y = 0; y < drawHeight; y++) {
for (int x = 0; x < drawWidth; x++) {
byte c = *src;
int textColor;
if (c >= 0x10 && c <= 0x1A) // Border characters
textColor = 0xb3;
else
textColor = sprite.textColor;
byte *fontData = _font->getCharData(c);
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 8; j++) {
byte b = *fontData;
if (b == 0) // Transparent: use lookup table to darken this pixel
*dest = _lutData[*dest];
else if (b == 0x78) // Inner part of character
*dest = textColor;
else // Outline of character
*dest = b;
fontData++;
dest++;
}
dest += SCREEN_WIDTH - 8;
}
dest -= (SCREEN_WIDTH * 8 - 8);
src++;
}
src += (sprite.bitmap->width / 8) - drawWidth;
dest += (SCREEN_WIDTH * 8) - drawWidth * 8;
}
break;
}
default:
error("drawSprite: draw mode %d invalid", sprite.drawMode);
break;
}
}
/**
* Compare 2 sprites for the purpose of sorting them by layer before drawing.
* FIXME: Original returned an int, not a bool. This may affect the stability of the sort...
*/
bool compareSpritesByLayer(Sprite *s1, Sprite *s2) {
if (s1->drawPriority != s2->drawPriority)
return s1->drawPriority < s2->drawPriority;
if (s1->drawPriority2 != s2->drawPriority2)
return s1->drawPriority2 < s2->drawPriority2;
if (s1->pos.y != s2->pos.y)
return s1->pos.y < s2->pos.y;
return s1->pos.x < s2->pos.x;
}
void Graphics::drawAllSprites(bool updateScreenFlag) {
// TODO: different video modes?
if (_numSprites != 0) {
// Sort sprites by layer
Common::sort(_sprites, _sprites + _numSprites, &compareSpritesByLayer);
// Update sprite rectangles
for (int i = 0; i < _numSprites; i++) {
Sprite *spr = _sprites[i];
Common::Rect rect;
rect.left = spr->pos.x - spr->bitmap->xoffset;
rect.top = spr->pos.y - spr->bitmap->yoffset;
rect.right = rect.left + spr->bitmap->width;
rect.bottom = rect.top + spr->bitmap->height;
spr->drawX = rect.left;
spr->drawY = rect.top;
spr->drawRect = rect.findIntersectingRect(_screenRect);
if (!spr->drawRect.isEmpty()) { // At least partly on-screen
if (spr->lastDrawRect.left < spr->lastDrawRect.right) {
// If the sprite's position is close to where it was last time it was
// drawn, combine the two rectangles and redraw that whole section.
// Otherwise, redraw the old position and current position separately.
rect = spr->drawRect.findIntersectingRect(spr->lastDrawRect);
if (rect.isEmpty())
spr->rect2Valid = 0;
else {
spr->rectangle2 = spr->drawRect;
spr->rectangle2.extend(spr->lastDrawRect);
spr->rect2Valid = 1;
}
} else {
spr->rectangle2 = spr->drawRect;
spr->rect2Valid = 1;
}
spr->isOnScreen = 1;
} else { // Off-screen
spr->rect2Valid = 0;
spr->isOnScreen = 0;
}
}
// Determine what portions of the screen need to be updated
Common::Rect dirtyRects[MAX_SPRITES * 2];
int numDirtyRects = 0;
for (int i = 0; i < _numSprites; i++) {
Sprite *spr = _sprites[i];
if (spr->bitmapChanged) {
if (spr->isOnScreen) {
if (spr->rect2Valid) {
dirtyRects[numDirtyRects++] = spr->rectangle2;
} else {
dirtyRects[numDirtyRects++] = spr->drawRect;
dirtyRects[numDirtyRects++] = spr->lastDrawRect;
}
} else {
dirtyRects[numDirtyRects++] = spr->lastDrawRect;
}
}
}
// Redraw the background on every dirty rectangle
const ::Graphics::PixelFormat format = ::Graphics::PixelFormat::createFormatCLUT8();
::Graphics::Surface surface;
surface.create(SCREEN_WIDTH, SCREEN_HEIGHT, format);
for (int i = 0; i < numDirtyRects; i++) {
Common::Rect &r = dirtyRects[i];
if (r.width() == 0 || r.height() == 0)
continue;
int offset = r.top * SCREEN_WIDTH + r.left;
surface.copyRectToSurface(_backgroundImage->pixels + offset, SCREEN_WIDTH, r.left, r.top, r.width(), r.height());
}
// For each sprite, merge the rectangles that overlap with it and redraw the sprite.
for (int i = 0; i < _numSprites; i++) {
Sprite *spr = _sprites[i];
if (!spr->field16 && spr->isOnScreen) {
bool mustRedrawSprite = false;
Common::Rect rect2;
for (int j = 0; j < numDirtyRects; j++) {
Common::Rect rect1 = spr->drawRect.findIntersectingRect(dirtyRects[j]);
if (rect1.width() != 0 && rect1.height() != 0) {
if (mustRedrawSprite)
rect2.extend(rect1);
else
rect2 = rect1;
mustRedrawSprite = true;
}
}
if (mustRedrawSprite)
drawSprite(*spr, &surface, rect2);
}
spr->field16 = false;
spr->bitmapChanged = false;
spr->lastDrawRect = spr->drawRect;
}
// Copy dirty rects to screen
for (int j = 0; j < numDirtyRects; j++) {
Common::Rect &r = dirtyRects[j];
if (r.width() == 0 || r.height() == 0)
continue;
int offset = r.left + r.top * SCREEN_WIDTH;
_vm->_system->copyRectToScreen((byte *)surface.getPixels() + offset, SCREEN_WIDTH, r.left, r.top, r.width(), r.height());
}
surface.free();
}
if (updateScreenFlag)
this->updateScreen();
}
void Graphics::drawAllSpritesInRectToSurface(const Common::Rect &rect, ::Graphics::Surface *surface) {
surface->copyFrom(*_vm->_system->lockScreen());
_vm->_system->unlockScreen();
for (int i = 0; i < _numSprites; i++) {
Sprite *sprite = _sprites[i];
if (!sprite->isOnScreen)
continue;
Common::Rect intersect = rect.findIntersectingRect(sprite->drawRect);
if (!intersect.isEmpty())
drawSprite(*sprite, surface, intersect);
}
}
void Graphics::forceDrawAllSprites(bool updateScreenFlag) {
for (int i = 0; i < _numSprites; i++)
_sprites[i]->bitmapChanged = true;
drawAllSprites(updateScreenFlag);
}
void Graphics::updateScreen() {
// Check if there are any pending updates to the mouse.
if (_mouseBitmap != _mouseBitmapLastFrame) {
_mouseBitmapLastFrame = _mouseBitmap;
_vm->_system->setMouseCursor(_mouseBitmap->pixels, _mouseBitmap->width, _mouseBitmap->height, _mouseBitmap->xoffset, _mouseBitmap->yoffset, 0);
}
if (_mouseToBeShown) {
CursorMan.showMouse(true);
_mouseToBeShown = false;
} else if (_mouseToBeHidden) {
CursorMan.showMouse(false);
_mouseToBeHidden = false;
}
if (_mouseWarpX != -1) {
_vm->_system->warpMouse(_mouseWarpX, _mouseWarpY);
_mouseWarpX = -1;
_mouseWarpY = -1;
}
_vm->_system->updateScreen();
_vm->_system->delayMillis(10);
}
Sprite *Graphics::getSpriteAt(int16 x, int16 y) {
for (int i = _numSprites - 1; i >= 0; i--) {
Sprite *sprite = _sprites[i];
if (sprite == &_lockedMouseSprite)
continue;
if (sprite->drawMode == 1) // Invisible
continue;
if (sprite->drawRect.contains(Common::Point(x, y))) {
if (sprite->drawMode == 2 || sprite->drawMode == 3) // Button or text
return sprite;
// For draw mode 0 only, check that we're not clicking on a transparent part.
int16 relX = x - sprite->drawX;
int16 relY = y - sprite->drawY;
byte pixel = sprite->bitmap->pixels[relY * sprite->bitmap->width + relX];
if (pixel != 0)
return sprite;
}
}
return nullptr;
}
void Graphics::addSprite(Sprite *sprite) {
if (_numSprites >= MAX_SPRITES)
error("addSprite: too many sprites");
// Initialize some fields
sprite->drawMode = 0;
sprite->field8 = "";
sprite->field16 = false;
sprite->bitmapChanged = true; // FIXME (delete this later?)
sprite->lastDrawRect.top = -1;
sprite->lastDrawRect.left = -1;
sprite->lastDrawRect.bottom = -2;
sprite->lastDrawRect.right = -2;
_sprites[_numSprites++] = sprite;
}
void Graphics::delSprite(Sprite *sprite) {
for (int i = 0; i < _numSprites; i++) {
if (sprite != _sprites[i])
continue;
_numSprites--;
_sprites[i] = _sprites[_numSprites];
return;
}
error("delSprite: sprite not in list");
}
void Graphics::pushSprites() {
if (_pushedNumSprites != -1)
error("Tried to push sprites more than once");
_pushedNumSprites = _numSprites;
memcpy(_pushedSprites, _sprites, sizeof(_sprites));
_numSprites = 0;
}
void Graphics::popSprites() {
if (_pushedNumSprites == -1)
error("Tried to pop sprites without a prior push");
_numSprites = _pushedNumSprites;
memcpy(_sprites, _pushedSprites, sizeof(_sprites));
_pushedNumSprites = -1;
}
byte *Graphics::getFontGfx(char c) {
return _font->getCharData(c & 0xff);
}
void Graphics::copyBackgroundScreen() {
drawDirectToScreen(_backgroundImage);
}
void Graphics::drawDirectToScreen(SharedPtr<Bitmap> bitmap) {
_vm->_system->copyRectToScreen(bitmap->pixels, bitmap->width, bitmap->xoffset, bitmap->yoffset, bitmap->width, bitmap->height);
}
void Graphics::loadEGAData(const char *filename) {
// Load EGA palette data
if (!_egaMode)
return;
if (!_egaData)
_egaData = new byte[256];
FileStream egaStream = _vm->loadFile(filename);
egaStream->read(_egaData, 256);
}
void Graphics::drawBackgroundImage(const char *filename) {
// Draw an stjr BGD image (palette built-in)
FileStream imageStream = _vm->loadFile(filename);
byte *palette = new byte[256 * 3];
imageStream->read(palette, 256 * 3);
// Expand color components
for (uint16 i = 0; i < 256 * 3; i++)
palette[i] <<= 2;
uint16 xoffset = imageStream->readUint16();
uint16 yoffset = imageStream->readUint16();
uint16 width = imageStream->readUint16();
uint16 height = imageStream->readUint16();
byte *pixels = new byte[width * height];
imageStream->read(pixels, width * height);
_vm->_system->getPaletteManager()->setPalette(palette, 0, 256);
_vm->_system->copyRectToScreen(pixels, width, xoffset, yoffset, width, height);
//_vm->_system->updateScreen();
//_vm->_system->delayMillis(10);
delete[] pixels;
delete[] palette;
}
} // End of namespace StarTrek
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