base_render_osystem.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * This file is based on WME Lite.
 * http://dead-code.org/redir.php?target=wmelite
 * Copyright (c) 2011 Jan Nedoma
 */

#ifndef WINTERMUTE_BASE_RENDERER_SDL_H
#define WINTERMUTE_BASE_RENDERER_SDL_H

#include "engines/wintermute/base/gfx/base_renderer.h"

#include "common/rect.h"
#include "common/list.h"

#include "graphics/managed_surface.h"
#include "graphics/transform_struct.h"

namespace Wintermute {
class BaseSurfaceOSystem;
class RenderTicket;
class BaseRenderOSystem : public BaseRenderer {
public:
    BaseRenderOSystem(BaseGame *inGame);
    ~BaseRenderOSystem() override;

    typedef Common::List<RenderTicket *>::iterator RenderQueueIterator;

    Common::String getName() const override;

    bool initRenderer(int width, int height, bool windowed) override;
    bool flip() override;
    bool indicatorFlip() override;
    bool forcedFlip() override;
    bool clear() override;
    Graphics::PixelFormat getPixelFormat() const override;
    void fade(uint16 alpha) override;
    void fadeToColor(byte r, byte g, byte b, byte a) override;

    bool fillRect(int x, int y, int w, int h, uint32 color) override;

    BaseImage *takeScreenshot(int newWidth = 0, int newHeight = 0) override;
    void onWindowChange() override;
    void setWindowed(bool windowed) override;

    void invalidateTicket(RenderTicket *renderTicket);
    void invalidateTicketsFromSurface(BaseSurfaceOSystem *surf);
    void drawFromTicket(RenderTicket *renderTicket);
    void drawFromQueuedTicket(const RenderQueueIterator &ticket);

    bool setViewport(int left, int top, int right, int bottom) override;
    bool setViewport(Common::Rect32 *rect) override { return BaseRenderer::setViewport(rect); }
    void modTargetRect(Common::Rect *rect);
    void pointFromScreen(Common::Point32 *point);
    void pointToScreen(Common::Point32 *point);

    float getScaleRatioX() const override {
        return _ratioX;
    }
    float getScaleRatioY() const override {
        return _ratioY;
    }
    bool startSpriteBatch() override;
    bool endSpriteBatch() override;
    void endSaveLoad() override;
    void drawSurface(BaseSurfaceOSystem *owner, const Graphics::Surface *surf, Common::Rect *srcRect, Common::Rect *dstRect, Graphics::TransformStruct &transform);
    BaseSurface *createSurface() override;
private:
    void addDirtyRect(const Common::Rect &rect);
    void drawTickets();
    // Non-dirty-rects:
    void drawFromSurface(RenderTicket *ticket);
    // Dirty-rects:
    void drawFromSurface(RenderTicket *ticket, Common::Rect *dstRect, Common::Rect *clipRect);
    Common::Rect *_dirtyRect;
    Common::List<RenderTicket *> _renderQueue;

    bool _needsFlip;
    RenderQueueIterator _lastFrameIter;
    Common::Rect _renderRect;
    Graphics::ManagedSurface *_renderSurface;

    int _borderLeft;
    int _borderTop;
    int _borderRight;
    int _borderBottom;

    bool _disableDirtyRects;
    float _ratioX;
    float _ratioY;
    uint32 _clearColor;

    bool _skipThisFrame;
    int _lastScreenChangeID; // previous value of OSystem::getScreenChangeID()
};

} // End of namespace Wintermute

#endif