mirror of
https://github.com/libretro/scummvm.git
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142 lines
3.9 KiB
C++
142 lines
3.9 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 "bbvs/graphics.h"
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namespace Bbvs {
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void DrawList::add(int index, int x, int y, int priority) {
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debug(5, "DrawList::add() %d (%d, %d) %d", index, x, y, priority);
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DrawListEntry drawListEntry;
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drawListEntry.index = index;
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drawListEntry.x = x;
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drawListEntry.y = y;
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drawListEntry.priority = priority;
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// Insert the sprite at the correct position
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uint insertIndex = 0;
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while (insertIndex < size() && (*this)[insertIndex].priority <= priority)
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++insertIndex;
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insert_at(insertIndex, drawListEntry);
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}
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Screen::Screen(OSystem *system) : _system(system) {
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_surface = new Graphics::Surface();
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_surface->create(320, 240, Graphics::PixelFormat::createFormatCLUT8());
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}
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Screen::~Screen() {
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_surface->free();
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delete _surface;
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}
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void Screen::setPalette(Palette &palette) {
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byte pal[768];
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memset(pal, 0, 768);
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memcpy(&pal[palette.start * 3], palette.data, palette.count * 3);
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_system->getPaletteManager()->setPalette(pal, 0, 256);
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}
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void Screen::copyToScreen() {
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_system->copyRectToScreen((const byte*)_surface->getBasePtr(0, 0), _surface->pitch, 0, 0, 320, 240);
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_system->updateScreen();
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}
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void Screen::clear() {
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_surface->fillRect(Common::Rect(0, 0, 320, 240), 0);
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}
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void Screen::drawDrawList(DrawList &drawList, SpriteModule *spriteModule) {
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for (uint i = 0; i < drawList.size(); ++i) {
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debug(1, "index: %d; x: %d; y: %d; priority: %d", drawList[i].index, drawList[i].x, drawList[i].y, drawList[i].priority);
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Sprite sprite = spriteModule->getSprite(drawList[i].index);
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drawSprite(sprite, drawList[i].x, drawList[i].y);
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}
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}
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void Screen::drawSprite(Sprite &sprite, int x, int y) {
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debug(5, "Screen::drawSprite()");
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int destX, destY, width, height, skipX = 0, skipY = 0;
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destX = sprite.xOffs + x;
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destY = sprite.yOffs + y;
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if (destX >= _surface->w || destY >= _surface->h)
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return;
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height = sprite.height;
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if (destY < 0) {
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height += destY;
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if (height <= 0)
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return;
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skipY = -destY;
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destY = 0;
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}
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if (destY + height > _surface->h)
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height = _surface->h - destY;
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width = sprite.width;
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if (destX < 0) {
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width += destX;
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if (width <= 0)
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return;
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skipX = -destX;
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destX = 0;
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}
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if (destX + width >= _surface->w)
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width = _surface->w - destX;
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debug(0, "drawSprite() (%d, %d, %d, %d); skipX: %d; skipY: %d; %d", destX, destY, width, height, skipX, skipY, sprite.type);
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if (sprite.type == 1) {
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for (int yc = 0; yc < height; ++yc) {
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byte *source = sprite.getRow(skipY + yc);
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byte *dest = (byte*)_surface->getBasePtr(destX, destY + yc);
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int currWidth = -skipX;
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while (currWidth < width) {
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int8 op = *source++;
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if (op < 0) {
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currWidth += (-op);
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} else {
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while (op >= 0 && currWidth < width) {
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if (currWidth >= 0)
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dest[currWidth] = *source;
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++source;
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++currWidth;
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--op;
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}
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}
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}
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}
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} else {
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for (int yc = 0; yc < height; ++yc) {
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byte *source = sprite.getRow(skipY + yc) + skipX;
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byte *dest = (byte*)_surface->getBasePtr(destX, destY + yc);
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memcpy(dest, source, width);
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}
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}
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debug(5, "Screen::drawSprite() OK");
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}
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} // End of namespace Bbvs
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