base_surface_opengl3d.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/>.
 *
 */

#ifndef WINTERMUTE_BASE_SURFACE_OPENGL3D_H
#define WINTERMUTE_BASE_SURFACE_OPENGL3D_H

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

#if defined(USE_OPENGL_GAME) || defined(USE_OPENGL_SHADERS)

#include "graphics/opengl/system_headers.h"

namespace Wintermute {

class BaseGame;
class BaseRenderer3D;

class BaseSurfaceOpenGL3D : public BaseSurface {
public:
    BaseSurfaceOpenGL3D(BaseGame* game, BaseRenderer3D* renderer);
    ~BaseSurfaceOpenGL3D();

    bool invalidate() override;

    bool displayTransRotate(int x, int y, float rotate, int32 hotspotX, int32 hotspotY, Common::Rect32 rect, float zoomX, float zoomY, uint32 alpha = 0xFFFFFFFF, Graphics::TSpriteBlendMode blendMode = Graphics::BLEND_NORMAL, bool mirrorX = false, bool mirrorY = false) override;
    bool displayTransZoom(int x, int y, Common::Rect32 rect, float zoomX, float zoomY, uint32 alpha = 0xFFFFFFFF, Graphics::TSpriteBlendMode blendMode = Graphics::BLEND_NORMAL, bool mirrorX = false, bool mirrorY = false) override;
    bool displayTrans(int x, int y, Common::Rect32 rect, uint32 alpha = 0xFFFFFFFF, Graphics::TSpriteBlendMode blendMode = Graphics::BLEND_NORMAL, bool mirrorX = false, bool mirrorY = false, int offsetX = 0, int offsetY = 0) override;
    bool display(int x, int y, Common::Rect32 rect, Graphics::TSpriteBlendMode blendMode = Graphics::BLEND_NORMAL, bool mirrorX = false, bool mirrorY = false) override;
    bool displayTiled(int x, int y, Common::Rect32 rect, int numTimesX, int numTimesY) override;
    bool create(const Common::String &filename, bool defaultCK, byte ckRed, byte ckGreen, byte ckBlue, int lifeTime = -1, bool keepLoaded = false) override;
    bool create(int width, int height) override;
    bool setAlphaImage(const Common::String &filename) override;
    bool putSurface(const Graphics::Surface &surface, bool hasAlpha = false) override;
    bool putPixel(int x, int y, byte r, byte g, byte b, byte a) override;
    bool getPixel(int x, int y, byte *r, byte *g, byte *b, byte *a = nullptr) const override;
    bool startPixelOp() override;
    bool endPixelOp() override;
    bool isTransparentAtLite(int x, int y) const override;

    void setTexture();

    GLuint getTextureName() {
        return _tex;
    }

    uint getGLTextureWidth() const {
        return _texWidth;
    }

    uint getGLTextureHeight() const {
        return _texHeight;
    }

private:
    GLuint _tex;
    BaseRenderer3D *_renderer;
    Graphics::Surface *_imageData;
    Graphics::Surface *_maskData;
    uint _texWidth;
    uint _texHeight;
    bool _pixelOpReady;
    bool _surfaceModified;

    void writeAlpha(Graphics::Surface *surface, const Graphics::Surface *mask);
};

} // End of namespace Wintermute

#endif // defined(USE_OPENGL_GAME) || defined(USE_OPENGL_SHADERS)

#endif