graphics-opengl.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 ALCACHOFA_GRAPHICS_OPENGL_H
#define ALCACHOFA_GRAPHICS_OPENGL_H

#include "alcachofa/graphics-opengl-base.h"

#include "graphics/managed_surface.h"
#include "graphics/opengl/system_headers.h"
#include "graphics/opengl/debug.h"

namespace Alcachofa {

class OpenGLTexture : public ITexture {
public:
    OpenGLTexture(int32 w, int32 h, bool withMipmaps);
    ~OpenGLTexture() override;

    inline GLuint handle() const { return _handle; }
    void setMirrorWrap(bool wrap);
    void update(const Graphics::Surface &surface) override;

protected:
    bool _withMipmaps;
    bool _mirrorWrap = true;
    GLuint _handle = 0;
};

class OpenGLRenderer : public OpenGLRendererBase {
public:
    OpenGLRenderer(Common::Point resolution);

    Common::ScopedPtr<ITexture> createTexture(int32 w, int32 h, bool withMipmaps) override;
    Graphics::PixelFormat getPixelFormat() const override;
    bool requiresPoTTextures() const override;
    void end() override;
    void setOutput(Graphics::Surface &output) override;

protected:
    void setViewportInner(int x, int y, int width, int height) override;
    void setBlendFunc(BlendMode blendMode); 
    void checkFirstDrawCommand();

    OpenGLTexture *_currentTexture = nullptr;
};

}

#endif // ALCACHOFA_GRAPHICS_OPENGL_H