mirror of
https://github.com/libretro/scummvm.git
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393 lines
12 KiB
C++
393 lines
12 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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* Additional copyright for this file:
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* Copyright (C) 1995-1997 Presto Studios, Inc.
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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 "common/file.h"
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#include "common/macresman.h"
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#include "common/stream.h"
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#include "common/system.h"
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#include "graphics/surface.h"
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#include "graphics/decoders/pict.h"
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#include "video/video_decoder.h"
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#include "pegasus/pegasus.h"
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#include "pegasus/surface.h"
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namespace Pegasus {
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Surface::Surface() {
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_ownsSurface = false;
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_surface = 0;
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}
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Surface::~Surface() {
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deallocateSurface();
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}
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void Surface::deallocateSurface() {
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if (_surface) {
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if (_ownsSurface) {
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_surface->free();
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delete _surface;
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}
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_surface = 0;
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_bounds = Common::Rect();
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_ownsSurface = false;
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}
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}
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void Surface::shareSurface(Surface *surface) {
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deallocateSurface();
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if (surface) {
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_ownsSurface = false;
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_surface = surface->getSurface();
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surface->getSurfaceBounds(_bounds);
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}
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}
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void Surface::allocateSurface(const Common::Rect &bounds) {
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deallocateSurface();
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if (bounds.isEmpty())
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return;
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_bounds = bounds;
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_surface = new Graphics::Surface();
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_surface->create(bounds.width(), bounds.height(), g_system->getScreenFormat());
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_ownsSurface = true;
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}
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void Surface::getImageFromPICTFile(const Common::String &fileName) {
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Common::File pict;
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if (!pict.open(fileName))
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error("Could not open picture '%s'", fileName.c_str());
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getImageFromPICTStream(&pict);
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}
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void Surface::getImageFromPICTResource(Common::MacResManager *resFork, uint16 id) {
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Common::SeekableReadStream *res = resFork->getResource(MKTAG('P', 'I', 'C', 'T'), id);
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if (!res)
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error("Could not open PICT resource %d from '%s'", id, resFork->getBaseFileName().c_str());
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getImageFromPICTStream(res);
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delete res;
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}
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void Surface::getImageFromPICTStream(Common::SeekableReadStream *stream) {
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Graphics::PICTDecoder pict;
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if (!pict.loadStream(*stream))
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error("Failed to load PICT image");
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_surface = pict.getSurface()->convertTo(g_system->getScreenFormat(), pict.getPalette());
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_ownsSurface = true;
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_bounds = Common::Rect(0, 0, _surface->w, _surface->h);
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}
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void Surface::getImageFromMovieFrame(Video::SeekableVideoDecoder *video, TimeValue time) {
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video->seekToTime(Audio::Timestamp(0, time, 600));
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const Graphics::Surface *frame = video->decodeNextFrame();
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if (frame) {
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if (!_surface)
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_surface = new Graphics::Surface();
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_surface->copyFrom(*frame);
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_ownsSurface = true;
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_bounds = Common::Rect(0, 0, _surface->w, _surface->h);
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} else {
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deallocateSurface();
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}
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}
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void Surface::copyToCurrentPort() const {
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copyToCurrentPort(_bounds);
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}
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void Surface::copyToCurrentPortTransparent() const {
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copyToCurrentPortTransparent(_bounds);
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}
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void Surface::copyToCurrentPort(const Common::Rect &rect) const {
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copyToCurrentPort(rect, rect);
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}
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void Surface::copyToCurrentPortTransparent(const Common::Rect &rect) const {
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copyToCurrentPortTransparent(rect, rect);
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}
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void Surface::copyToCurrentPort(const Common::Rect &srcRect, const Common::Rect &dstRect) const {
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getCurSurface();
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byte *src = (byte *)_surface->getBasePtr(srcRect.left, srcRect.top);
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byte *dst = (byte *)screen->getBasePtr(dstRect.left, dstRect.top);
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int lineSize = srcRect.width() * _surface->format.bytesPerPixel;
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for (int y = 0; y < srcRect.height(); y++) {
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memcpy(dst, src, lineSize);
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src += _surface->pitch;
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dst += screen->pitch;
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}
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}
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void Surface::copyToCurrentPortTransparent(const Common::Rect &srcRect, const Common::Rect &dstRect) const {
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getCurSurface();
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byte *src = (byte *)_surface->getBasePtr(srcRect.left, srcRect.top);
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byte *dst = (byte *)screen->getBasePtr(dstRect.left, dstRect.top);
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int lineSize = srcRect.width() * _surface->format.bytesPerPixel;
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for (int y = 0; y < srcRect.height(); y++) {
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for (int x = 0; x < srcRect.width(); x++) {
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if (g_system->getScreenFormat().bytesPerPixel == 2) {
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uint16 color = READ_UINT16(src);
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if (!isTransparent(color))
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memcpy(dst, src, 2);
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} else if (g_system->getScreenFormat().bytesPerPixel == 4) {
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uint32 color = READ_UINT32(src);
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if (!isTransparent(color))
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memcpy(dst, src, 4);
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}
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src += g_system->getScreenFormat().bytesPerPixel;
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dst += g_system->getScreenFormat().bytesPerPixel;
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}
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src += _surface->pitch - lineSize;
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dst += screen->pitch - lineSize;
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}
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}
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void Surface::copyToCurrentPortMasked(const Common::Rect &srcRect, const Common::Rect &dstRect, const Surface *mask) const {
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getCurSurface();
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byte *src = (byte *)_surface->getBasePtr(srcRect.left, srcRect.top);
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byte *dst = (byte *)screen->getBasePtr(dstRect.left, dstRect.top);
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int lineSize = srcRect.width() * _surface->format.bytesPerPixel;
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for (int y = 0; y < srcRect.height(); y++) {
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byte *maskSrc = (byte *)mask->getSurface()->getBasePtr(0, y);
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for (int x = 0; x < srcRect.width(); x++) {
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if (g_system->getScreenFormat().bytesPerPixel == 2) {
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uint16 color = READ_UINT16(maskSrc);
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if (!isTransparent(color))
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memcpy(dst, src, 2);
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} else if (g_system->getScreenFormat().bytesPerPixel == 4) {
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uint32 color = READ_UINT32(maskSrc);
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if (!isTransparent(color))
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memcpy(dst, src, 4);
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}
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src += g_system->getScreenFormat().bytesPerPixel;
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maskSrc += g_system->getScreenFormat().bytesPerPixel;
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dst += g_system->getScreenFormat().bytesPerPixel;
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}
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src += _surface->pitch - lineSize;
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dst += screen->pitch - lineSize;
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}
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}
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void Surface::copyToCurrentPortTransparentGlow(const Common::Rect &srcRect, const Common::Rect &dstRect) const {
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// This is the same as copyToCurrentPortTransparent(), but turns the red value of each
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// pixel all the way up.
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getCurSurface();
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byte *src = (byte *)_surface->getBasePtr(srcRect.left, srcRect.top);
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byte *dst = (byte *)screen->getBasePtr(dstRect.left, dstRect.top);
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int lineSize = srcRect.width() * _surface->format.bytesPerPixel;
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for (int y = 0; y < srcRect.height(); y++) {
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for (int x = 0; x < srcRect.width(); x++) {
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if (g_system->getScreenFormat().bytesPerPixel == 2) {
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uint16 color = READ_UINT16(src);
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if (!isTransparent(color))
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WRITE_UINT16(dst, getGlowColor(color));
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} else if (g_system->getScreenFormat().bytesPerPixel == 4) {
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uint32 color = READ_UINT32(src);
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if (!isTransparent(color))
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WRITE_UINT32(dst, getGlowColor(color));
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}
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src += g_system->getScreenFormat().bytesPerPixel;
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dst += g_system->getScreenFormat().bytesPerPixel;
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}
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src += _surface->pitch - lineSize;
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dst += screen->pitch - lineSize;
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}
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}
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void Surface::scaleTransparentCopy(const Common::Rect &srcRect, const Common::Rect &dstRect) const {
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// I'm doing simple linear scaling here
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// dstRect(x, y) = srcRect(x * srcW / dstW, y * srcH / dstH);
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getCurSurface();
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int srcW = srcRect.width();
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int srcH = srcRect.height();
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int dstW = dstRect.width();
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int dstH = dstRect.height();
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for (int y = 0; y < dstH; y++) {
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for (int x = 0; x < dstW; x++) {
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if (g_system->getScreenFormat().bytesPerPixel == 2) {
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uint16 color = READ_UINT16((byte *)_surface->getBasePtr(
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x * srcW / dstW + srcRect.left,
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y * srcH / dstH + srcRect.top));
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if (!isTransparent(color))
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WRITE_UINT16((byte *)screen->getBasePtr(x + dstRect.left, y + dstRect.top), color);
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} else if (g_system->getScreenFormat().bytesPerPixel == 4) {
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uint32 color = READ_UINT32((byte *)_surface->getBasePtr(
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x * srcW / dstW + srcRect.left,
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y * srcH / dstH + srcRect.top));
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if (!isTransparent(color))
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WRITE_UINT32((byte *)screen->getBasePtr(x + dstRect.left, y + dstRect.top), color);
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}
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}
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}
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}
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void Surface::scaleTransparentCopyGlow(const Common::Rect &srcRect, const Common::Rect &dstRect) const {
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// This is the same as scaleTransparentCopy(), but turns the red value of each
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// pixel all the way up.
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Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getCurSurface();
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int srcW = srcRect.width();
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int srcH = srcRect.height();
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int dstW = dstRect.width();
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int dstH = dstRect.height();
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for (int y = 0; y < dstH; y++) {
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for (int x = 0; x < dstW; x++) {
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if (g_system->getScreenFormat().bytesPerPixel == 2) {
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uint16 color = READ_UINT16((byte *)_surface->getBasePtr(
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x * srcW / dstW + srcRect.left,
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y * srcH / dstH + srcRect.top));
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if (!isTransparent(color))
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WRITE_UINT16((byte *)screen->getBasePtr(x + dstRect.left, y + dstRect.top), getGlowColor(color));
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} else if (g_system->getScreenFormat().bytesPerPixel == 4) {
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uint32 color = READ_UINT32((byte *)_surface->getBasePtr(
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x * srcW / dstW + srcRect.left,
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y * srcH / dstH + srcRect.top));
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if (!isTransparent(color))
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WRITE_UINT32((byte *)screen->getBasePtr(x + dstRect.left, y + dstRect.top), getGlowColor(color));
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}
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}
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}
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}
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uint32 Surface::getGlowColor(uint32 color) const {
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// Can't just 'or' it on like the original did :P
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byte r, g, b;
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g_system->getScreenFormat().colorToRGB(color, r, g, b);
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return g_system->getScreenFormat().RGBToColor(0xff, g, b);
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}
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bool Surface::isTransparent(uint32 color) const {
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// HACK: Seems we're truncating some color data somewhere...
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uint32 transColor1 = g_system->getScreenFormat().RGBToColor(0xff, 0xff, 0xff);
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uint32 transColor2 = g_system->getScreenFormat().RGBToColor(0xf8, 0xf8, 0xf8);
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return color == transColor1 || color == transColor2;
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}
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PixelImage::PixelImage() {
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_transparent = false;
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}
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void PixelImage::drawImage(const Common::Rect &sourceBounds, const Common::Rect &destBounds) {
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if (!isSurfaceValid())
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return;
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// Draw from sourceBounds to destBounds based on _transparent
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if (_transparent)
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copyToCurrentPortTransparent(sourceBounds, destBounds);
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else
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copyToCurrentPort(sourceBounds, destBounds);
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}
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void Frame::initFromPICTFile(const Common::String &fileName, bool transparent) {
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getImageFromPICTFile(fileName);
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_transparent = transparent;
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}
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void Frame::initFromPICTResource(Common::MacResManager *resFork, uint16 id, bool transparent) {
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getImageFromPICTResource(resFork, id);
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_transparent = transparent;
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}
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void Frame::initFromMovieFrame(Video::SeekableVideoDecoder *video, TimeValue time, bool transparent) {
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getImageFromMovieFrame(video, time);
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_transparent = transparent;
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}
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void Picture::draw(const Common::Rect &r) {
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Common::Rect surfaceBounds;
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getSurfaceBounds(surfaceBounds);
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Common::Rect r1 = r;
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Common::Rect bounds;
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getBounds(bounds);
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surfaceBounds.moveTo(bounds.left, bounds.top);
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r1 = r1.findIntersectingRect(surfaceBounds);
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getSurfaceBounds(surfaceBounds);
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Common::Rect r2 = r1;
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r2.translate(surfaceBounds.left - bounds.left, surfaceBounds.top - bounds.top);
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drawImage(r2, r1);
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}
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void Picture::initFromPICTFile(const Common::String &fileName, bool transparent) {
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Frame::initFromPICTFile(fileName, transparent);
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Common::Rect surfaceBounds;
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getSurfaceBounds(surfaceBounds);
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sizeElement(surfaceBounds.width(), surfaceBounds.height());
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}
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void Picture::initFromPICTResource(Common::MacResManager *resFork, uint16 id, bool transparent) {
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Frame::initFromPICTResource(resFork, id, transparent);
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Common::Rect surfaceBounds;
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getSurfaceBounds(surfaceBounds);
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sizeElement(surfaceBounds.width(), surfaceBounds.height());
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}
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void Picture::initFromMovieFrame(Video::SeekableVideoDecoder *video, TimeValue time, bool transparent) {
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Frame::initFromMovieFrame(video, time, transparent);
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Common::Rect surfaceBounds;
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getSurfaceBounds(surfaceBounds);
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sizeElement(surfaceBounds.width(), surfaceBounds.height());
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}
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} // End of namespace Pegasus
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