128 lines
3.8 KiB
C++

/* ResidualVM - A 3D game interpreter
*
* ResidualVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef GFX_H_
#define GFX_H_
#include "common/rect.h"
#include "common/system.h"
#include "math/vector3d.h"
namespace Myst3 {
class Drawable {
public:
virtual void draw() {}
virtual void drawOverlay() {}
virtual ~Drawable() {}
};
class Texture {
public:
uint width;
uint height;
Graphics::PixelFormat format;
virtual void update(const Graphics::Surface *surface) = 0;
protected:
Texture() {}
virtual ~Texture() {}
};
class Renderer {
public:
virtual ~Renderer() {}
virtual void init() = 0;
virtual void initFont(const Graphics::Surface *surface) = 0;
virtual void freeFont() = 0;
virtual void clear() = 0;
virtual void setupCameraOrtho2D(bool noScaling) = 0;
virtual void setupCameraPerspective(float pitch, float heading, float fov) = 0;
virtual Texture *createTexture(const Graphics::Surface *surface) = 0;
virtual void freeTexture(Texture *texture) = 0;
virtual void drawRect2D(const Common::Rect &rect, uint32 color) = 0;
virtual void drawTexturedRect2D(const Common::Rect &screenRect, const Common::Rect &textureRect, Texture *texture,
float transparency = -1.0, bool additiveBlending = false) = 0;
virtual void drawTexturedRect3D(const Math::Vector3d &topLeft, const Math::Vector3d &bottomLeft,
const Math::Vector3d &topRight, const Math::Vector3d &bottomRight,
Texture *texture) = 0;
virtual void drawCube(Texture **textures) = 0;
virtual void draw2DText(const Common::String &text, const Common::Point &position) = 0;
virtual Graphics::Surface *getScreenshot() = 0;
virtual void screenPosToDirection(const Common::Point screen, float &pitch, float &heading) = 0;
virtual Common::Rect viewport() const = 0;
virtual Common::Rect frameViewport() const = 0;
virtual Common::Point frameCenter() const = 0;
virtual void flipVertical(Graphics::Surface *s) = 0;
/**
* Swap the buffers, making the drawn screen visible
*/
virtual void flipBuffer() { }
static const int kOriginalWidth = 640;
static const int kOriginalHeight = 480;
static const int kTopBorderHeight = 30;
static const int kBottomBorderHeight = 90;
static const int kFrameHeight = 360;
};
class BaseRenderer : public Renderer {
public:
BaseRenderer(OSystem *system);
virtual ~BaseRenderer();
virtual void initFont(const Graphics::Surface *surface) override;
virtual void freeFont() override;
Common::Rect viewport() const override;
Common::Rect frameViewport() const override;
Common::Point frameCenter() const override;
void flipVertical(Graphics::Surface *s) override;
protected:
OSystem *_system;
Texture *_font;
Common::Rect _screenViewport;
Common::Rect getFontCharacterRect(uint8 character);
void computeScreenViewport();
};
Renderer *CreateGfxOpenGL(OSystem *system);
Renderer *CreateGfxOpenGLShader(OSystem *system);
Renderer *CreateGfxTinyGL(OSystem *system);
} // End of namespace Myst3
#endif // GFX_H_