mirror of
https://github.com/libretro/scummvm.git
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303 lines
8.1 KiB
C++
303 lines
8.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "graphics/palette.h"
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#include "neverhood/screen.h"
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namespace Neverhood {
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Screen::Screen(NeverhoodEngine *vm)
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: _vm(vm), _paletteData(NULL), _paletteChanged(false) {
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_ticks = _vm->_system->getMillis();
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_backScreen = new Graphics::Surface();
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_backScreen->create(640, 480, Graphics::PixelFormat::createFormatCLUT8());
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}
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Screen::~Screen() {
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_backScreen->free();
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delete _backScreen;
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}
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void Screen::update() {
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updatePalette();
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// TODO: Implement actual code
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_vm->_system->copyRectToScreen((const byte*)_backScreen->pixels, _backScreen->pitch, 0, 0, 640, 480);
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_vm->_system->updateScreen();
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}
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void Screen::wait() {
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// TODO
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_vm->_system->delayMillis(40);
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}
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void Screen::setFps(int fps) {
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_frameDelay = 1000 / fps;
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}
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int Screen::getFps() {
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return 1000 / _frameDelay;
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}
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void Screen::setPaletteData(byte *paletteData) {
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_paletteChanged = true;
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_paletteData = paletteData;
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}
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void Screen::unsetPaletteData(byte *paletteData) {
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if (_paletteData == paletteData) {
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_paletteChanged = false;
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_paletteData = NULL;
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}
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}
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void Screen::testPalette(byte *paletteData) {
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if (_paletteData == paletteData)
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_paletteChanged = true;
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}
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void Screen::updatePalette() {
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if (_paletteChanged && _paletteData) {
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byte *tempPalette = new byte[768];
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for (int i = 0; i < 256; i++) {
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tempPalette[i * 3 + 0] = _paletteData[i * 4 + 0];
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tempPalette[i * 3 + 1] = _paletteData[i * 4 + 1];
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tempPalette[i * 3 + 2] = _paletteData[i * 4 + 2];
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}
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_vm->_system->getPaletteManager()->setPalette(tempPalette, 0, 256);
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delete[] tempPalette;
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_paletteChanged = false;
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}
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}
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void Screen::clear() {
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memset(_backScreen->pixels, 0, _backScreen->pitch * _backScreen->h);
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}
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void Screen::drawSurface2(const Graphics::Surface *surface, NDrawRect &drawRect, NRect &clipRect, bool transparent,
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const Graphics::Surface *shadowSurface) {
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int16 destX, destY;
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NRect ddRect;
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if (drawRect.x + drawRect.width >= clipRect.x2)
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ddRect.x2 = clipRect.x2 - drawRect.x;
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else
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ddRect.x2 = drawRect.width;
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if (drawRect.x < clipRect.x1) {
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destX = clipRect.x1;
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ddRect.x1 = clipRect.x1 - drawRect.x;
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} else {
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destX = drawRect.x;
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ddRect.x1 = 0;
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}
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if (drawRect.y + drawRect.height >= clipRect.y2)
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ddRect.y2 = clipRect.y2 - drawRect.y;
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else
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ddRect.y2 = drawRect.height;
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if (drawRect.y < clipRect.y1) {
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destY = clipRect.y1;
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ddRect.y1 = clipRect.y1 - drawRect.y;
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} else {
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destY = drawRect.y;
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ddRect.y1 = 0;
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}
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//debug(2, "draw: x = %d; y = %d; (%d, %d, %d, %d)", destX, destY, ddRect.x1, ddRect.y1, ddRect.x2, ddRect.y2);
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blit(surface, destX, destY, ddRect, transparent, shadowSurface);
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// Useful for debugging
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//_backScreen->frameRect(Common::Rect(clipRect.x1, clipRect.y1, clipRect.x2, clipRect.y2), 250);
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//_backScreen->frameRect(Common::Rect(destX, destY, destX + ddRect.x2, destY + ddRect.y2), 255);
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//_backScreen->frameRect(Common::Rect(drawRect.x, drawRect.y, drawRect.x + drawRect.width, drawRect.y + drawRect.height), 255);
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}
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void Screen::drawSurface3(const Graphics::Surface *surface, int16 x, int16 y, NDrawRect &drawRect, NRect &clipRect, bool transparent) {
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int16 destX, destY;
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NRect ddRect;
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if (x + drawRect.width >= clipRect.x2)
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ddRect.x2 = clipRect.x2 - drawRect.x - x;
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else
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ddRect.x2 = drawRect.x + drawRect.width;
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if (x < clipRect.x1) {
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destX = clipRect.x1;
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ddRect.x1 = clipRect.x1 + drawRect.x - x;
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} else {
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destX = x;
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ddRect.x1 = drawRect.x;
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}
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if (y + drawRect.height >= clipRect.y2)
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ddRect.y2 = clipRect.y2 + drawRect.y - y;
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else
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ddRect.y2 = drawRect.y + drawRect.height;
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if (y < clipRect.y1) {
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destY = clipRect.y1;
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ddRect.y1 = clipRect.y1 + drawRect.y - y;
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} else {
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destY = y;
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ddRect.y1 = drawRect.y;
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}
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blit(surface, destX, destY, ddRect, transparent);
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}
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void Screen::blit(const Graphics::Surface *surface, int16 destX, int16 destY, NRect &ddRect, bool transparent,
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const Graphics::Surface *shadowSurface) {
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const byte *source = (const byte*)surface->getBasePtr(ddRect.x1, ddRect.y1);
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byte *dest = (byte*)_backScreen->getBasePtr(destX, destY);
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int width = ddRect.x2 - ddRect.x1;
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int height = ddRect.y2 - ddRect.y1;
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if (width <= 0 || height <= 0)
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return;
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if (shadowSurface) {
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const byte *shadowSource = (const byte*)shadowSurface->getBasePtr(destX, destY);
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while (height--) {
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for (int xc = 0; xc < width; xc++)
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if (source[xc] != 0)
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dest[xc] = shadowSource[xc];
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source += surface->pitch;
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shadowSource += shadowSurface->pitch;
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dest += _backScreen->pitch;
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}
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} else if (!transparent) {
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while (height--) {
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memcpy(dest, source, width);
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source += surface->pitch;
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dest += _backScreen->pitch;
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}
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} else {
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while (height--) {
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for (int xc = 0; xc < width; xc++)
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if (source[xc] != 0)
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dest[xc] = source[xc];
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source += surface->pitch;
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dest += _backScreen->pitch;
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}
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}
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}
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void Screen::drawDoubleSurface2(const Graphics::Surface *surface, NDrawRect &drawRect) {
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const byte *source = (const byte*)surface->getBasePtr(0, 0);
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byte *dest = (byte*)_backScreen->getBasePtr(drawRect.x, drawRect.y);
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for (int16 yc = 0; yc < surface->h; yc++) {
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byte *row = dest;
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for (int16 xc = 0; xc < surface->w; xc++) {
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*row++ = *source;
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*row++ = *source++;
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}
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memcpy(dest + _backScreen->pitch, dest, surface->w * 2);
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dest += _backScreen->pitch;
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dest += _backScreen->pitch;
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}
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}
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void Screen::drawUnk(const Graphics::Surface *surface, NDrawRect &drawRect, NDrawRect &sysRect, NRect &clipRect, bool transparent) {
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int16 x, y;
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bool xflag, yflag;
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NDrawRect newDrawRect;
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x = sysRect.x;
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if (sysRect.width <= x || -sysRect.width >= x) {
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x = x % sysRect.width;
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}
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if (x < 0)
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x += sysRect.width;
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y = sysRect.y;
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if (y >= sysRect.height || -sysRect.height >= y) {
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y = y % sysRect.height;
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}
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if (y < 0)
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y += sysRect.height;
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xflag = x <= 0;
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yflag = y <= 0;
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newDrawRect.x = x;
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newDrawRect.width = sysRect.width - x;
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if (drawRect.width < newDrawRect.width) {
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xflag = true;
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newDrawRect.width = drawRect.width;
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}
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newDrawRect.y = y;
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newDrawRect.height = sysRect.height - y;
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if (drawRect.height < newDrawRect.height) {
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yflag = true;
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newDrawRect.height = drawRect.height;
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}
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drawSurface3(surface, drawRect.x, drawRect.y, newDrawRect, clipRect, transparent);
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if (!xflag) {
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newDrawRect.x = 0;
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newDrawRect.y = y;
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newDrawRect.width = x + drawRect.width - sysRect.width;
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newDrawRect.height = sysRect.height - y;
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if (drawRect.height < newDrawRect.height)
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newDrawRect.height = drawRect.height;
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drawSurface3(surface, sysRect.width + drawRect.x - x, drawRect.y, newDrawRect, clipRect, transparent);
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}
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if (!yflag) {
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newDrawRect.x = x;
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newDrawRect.y = 0;
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newDrawRect.width = sysRect.width - x;
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newDrawRect.height = y + drawRect.height - sysRect.height;
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if (drawRect.width < newDrawRect.width)
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newDrawRect.width = drawRect.width;
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drawSurface3(surface, drawRect.x, sysRect.height + drawRect.y - y, newDrawRect, clipRect, transparent);
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}
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if (!xflag && !yflag) {
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newDrawRect.x = 0;
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newDrawRect.y = 0;
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newDrawRect.width = x + drawRect.width - sysRect.width;
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newDrawRect.height = y + drawRect.height - sysRect.height;
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drawSurface3(surface, sysRect.width + drawRect.x - x, sysRect.height + drawRect.y - y, newDrawRect, clipRect, transparent);
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}
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}
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} // End of namespace Neverhood
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