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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 "neverhood/graphics.h"
#include "neverhood/resource.h"
#include "neverhood/screen.h"
namespace Neverhood {
BaseSurface::BaseSurface(NeverhoodEngine *vm, int priority, int16 width, int16 height)
: _vm(vm), _priority(priority), _visible(true), _transparent(true) {
_drawRect.x = 0;
_drawRect.y = 0;
_drawRect.width = width;
_drawRect.height = height;
// TODO: Check if _sysRect is needed at all in the reimplementation...
_sysRect.x = 0;
_sysRect.y = 0;
_sysRect.width = (width + 3) & 0xFFFC; // align by 4 bytes
_sysRect.height = height;
_clipRect.x1 = 0;
_clipRect.y1 = 0;
_clipRect.x2 = 640;
_clipRect.y2 = 480;
_surface = new Graphics::Surface();
_surface->create(width, height, Graphics::PixelFormat::createFormatCLUT8());
}
BaseSurface::~BaseSurface() {
delete _surface;
}
void BaseSurface::draw() {
debug(8, "BaseSurface::draw()");
if (_surface && _visible && _drawRect.width > 0 && _drawRect.height > 0) {
// TODO: _sysRect alternate drawing code (is that used?)
_vm->_screen->drawSurface2(_surface, _drawRect, _clipRect, _transparent);
}
}
void BaseSurface::addDirtyRect() {
// TODO
}
void BaseSurface::clear() {
_surface->fillRect(Common::Rect(0, 0, _surface->w, _surface->h), 0);
}
void BaseSurface::drawSpriteResource(SpriteResource &spriteResource) {
if (spriteResource.getDimensions().width <= _drawRect.width &&
spriteResource.getDimensions().height <= _drawRect.height) {
clear();
spriteResource.draw((byte*)_surface->pixels, _surface->pitch, false, false);
}
}
void BaseSurface::drawSpriteResourceEx(SpriteResource &spriteResource, bool flipX, bool flipY, int16 width, int16 height) {
if (spriteResource.getDimensions().width <= _sysRect.width &&
spriteResource.getDimensions().height <= _sysRect.height) {
if (width > 0 && width <= _sysRect.width)
_drawRect.width = width;
if (height > 0 && height <= _sysRect.height)
_drawRect.height = height;
if (_surface) {
clear();
spriteResource.draw((byte*)_surface->pixels, _surface->pitch, flipX, flipY);
}
}
}
void BaseSurface::drawAnimResource(AnimResource &animResource, uint frameIndex, bool flipX, bool flipY, int16 width, int16 height) {
if (width > 0 && width <= _sysRect.width)
_drawRect.width = width;
if (height > 0 && height <= _sysRect.height)
_drawRect.height = height;
if (_surface) {
clear();
if (frameIndex < animResource.getFrameCount()) {
animResource.draw(frameIndex, (byte*)_surface->pixels, _surface->pitch, flipX, flipY);
}
}
}
void BaseSurface::drawMouseCursorResource(MouseCursorResource &mouseCursorResource, int frameNum) {
if (frameNum < 3) {
mouseCursorResource.draw(frameNum, (byte*)_surface->pixels, _surface->pitch);
}
}
// Misc
void parseBitmapResource(byte *sprite, bool *rle, NDimensions *dimensions, NPoint *position, byte **palette, byte **pixels) {
uint16 flags;
flags = READ_LE_UINT16(sprite);
sprite += 2;
if (rle)
*rle = flags & 1;
if (flags & 2) {
if (dimensions) {
dimensions->width = READ_LE_UINT16(sprite);
dimensions->height = READ_LE_UINT16(sprite + 2);
}
sprite += 4;
} else if (dimensions) {
dimensions->width = 1;
dimensions->height = 1;
}
if (flags & 4) {
if (position) {
position->x = READ_LE_UINT16(sprite);
position->y = READ_LE_UINT16(sprite + 2);
}
sprite += 4;
} else if (position) {
position->x = 0;
position->y = 0;
}
if (flags & 8) {
if (palette)
*palette = sprite;
sprite += 1024;
} else if (palette)
*palette = NULL;
if (flags & 0x10) {
if (pixels)
*pixels = sprite;
} else if (pixels)
*pixels = NULL;
}
void unpackSpriteRle(byte *source, int width, int height, byte *dest, int destPitch, bool flipX, bool flipY) {
// TODO: Flip Y
int16 rows, chunks;
int16 skip, copy;
rows = READ_LE_UINT16(source);
chunks = READ_LE_UINT16(source + 2);
source += 4;
do {
if (chunks == 0) {
dest += rows * destPitch;
} else {
while (rows-- > 0) {
uint16 rowChunks = chunks;
while (rowChunks-- > 0) {
skip = READ_LE_UINT16(source);
copy = READ_LE_UINT16(source + 2);
source += 4;
if (!flipX)
memcpy(dest + skip, source, copy);
else {
byte *flipDest = dest + width - skip - 1;
for (int xc = 0; xc < copy; xc++) {
*flipDest-- = source[xc];
}
}
source += copy;
}
dest += destPitch;
}
}
rows = READ_LE_UINT16(source);
chunks = READ_LE_UINT16(source + 2);
source += 4;
} while (rows > 0);
}
void unpackSpriteNormal(byte *source, int width, int height, byte *dest, int destPitch, bool flipX, bool flipY) {
// TODO: Flip Y
int sourcePitch = (width + 3) & 0xFFFC;
if (!flipX) {
while (height-- > 0) {
memcpy(dest, source, width);
source += sourcePitch;
dest += destPitch;
}
} else {
while (height-- > 0) {
dest += width - 1;
for (int xc = 0; xc < width; xc++)
*dest-- = source[xc];
source += sourcePitch;
dest += destPitch;
}
}
}
} // End of namespace Neverhood
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