#include "localconsts.h"
class Image;
class ImageCollection;
class ImageVertexes;
struct SDL_Window;
static const int defaultScreenWidth = 800;
static const int defaultScreenHeight = 600;
/**
* 9 images defining a rectangle. 4 corners, 4 sides and a middle area. The
* topology is as follows:
*
*
* !-----!-----------------!-----!
* ! 0 ! 1 ! 2 !
* !-----!-----------------!-----!
* ! 3 ! 4 ! 5 !
* !-----!-----------------!-----!
* ! 6 ! 7 ! 8 !
* !-----!-----------------!-----!
*
*
* Sections 0, 2, 6 and 8 will remain as is. 1, 3, 4, 5 and 7 will be
* repeated to fit the size of the widget.
*/
class ImageRect final
{
public:
ImageRect()
{
for (int f = 0; f < 9; f ++)
grid[f] = nullptr;
}
A_DELETE_COPY(ImageRect)
enum ImagePosition
{
UPPER_LEFT = 0,
UPPER_CENTER = 1,
UPPER_RIGHT = 2,
LEFT = 3,
CENTER = 4,
RIGHT = 5,
LOWER_LEFT = 6,
LOWER_CENTER = 7,
LOWER_RIGHT = 8
};
Image *grid[9];
};
/**
* A central point of control for graphics.
*/
class Graphics
{
public:
A_DELETE_COPY(Graphics)
/**
* Destructor.
*/
virtual ~Graphics();
/**
* Alignments for text drawing.
*/
enum Alignment
{
LEFT = 0,
CENTER,
RIGHT
};
void setWindow(SDL_Window *const window,
const int width, const int height)
{
mWindow = window;
mRect.w = width;
mRect.h = height;
}
SDL_Window *getWindow() const
{ return mWindow; }
/**
* Sets whether vertical refresh syncing is enabled. Takes effect after
* the next call to setVideoMode(). Only implemented on MacOS for now.
*/
void setSync(const bool sync);
bool getSync() const A_WARN_UNUSED
{ return mSync; }
/**
* Try to create a window with the given settings.
*/
virtual bool setVideoMode(const int w, const int h,
const int scale,
const int bpp,
const bool fs,
const bool hwaccel,
const bool resize,
const bool noFrame) = 0;
/**
* Set fullscreen mode.
*/
bool setFullscreen(const bool fs);
/**
* Resize the window to the specified size.
*/
virtual bool resizeScreen(const int width, const int height);
/**
* Draws a resclaled version of the image
*/
virtual bool drawRescaledImage(const Image *const image,
int dstX, int dstY,
const int desiredWidth,
const int desiredHeight) = 0;
virtual void drawPattern(const Image *const image,
const int x, const int y,
const int w, const int h) = 0;
/**
* Draw a pattern based on a rescaled version of the given image...
*/
virtual void drawRescaledPattern(const Image *const image,
const int x, const int y,
const int w, const int h,
const int scaledWidth,
const int scaledHeight) = 0;
virtual void drawImageRect(const int x, const int y,
const int w, const int h,
const ImageRect &imgRect) = 0;
virtual void calcPattern(ImageVertexes *const vert,
const Image *const image,
const int x, const int y,
const int w, const int h) const = 0;
virtual void calcPattern(ImageCollection *const vert,
const Image *const image,
const int x, const int y,
const int w, const int h) const = 0;
virtual void calcTileVertexes(ImageVertexes *const vert,
const Image *const image,
int x, int y) const = 0;
virtual void calcTileSDL(ImageVertexes *const vert A_UNUSED,
int x A_UNUSED, int y A_UNUSED) const
{
}
virtual void drawTileVertexes(const ImageVertexes *const vert) = 0;
virtual void drawTileCollection(const ImageCollection
*const vertCol) = 0;
virtual void calcTileCollection(ImageCollection *const vertCol,
const Image *const image,
int x, int y) = 0;
virtual void calcWindow(ImageCollection *const vertCol,
const int x, const int y,
const int w, const int h,
const ImageRect &imgRect) = 0;
virtual void fillRectangle(const Rectangle& rectangle) = 0;
/**
* Updates the screen. This is done by either copying the buffer to the
* screen or swapping pages.
*/
virtual void updateScreen() = 0;
void setWindowSize(const int width, const int height);
/**
* Returns the width of the screen.
*/
int getWidth() const A_WARN_UNUSED;
/**
* Returns the height of the screen.
*/
int getHeight() const A_WARN_UNUSED;
/**
* Takes a screenshot and returns it as SDL surface.
*/
virtual SDL_Surface *getScreenshot() A_WARN_UNUSED = 0;
virtual void prepareScreenshot()
{ }
int getMemoryUsage() const A_WARN_UNUSED;
virtual bool drawNet(const int x1, const int y1,
const int x2, const int y2,
const int width, const int height);
ClipRectangle &getTopClip() A_WARN_UNUSED
{ return mClipStack.top(); }
void setRedraw(const bool n)
{ mRedraw = n; }
bool getRedraw() const A_WARN_UNUSED
{ return mRedraw; }
void setSecure(const bool n)
{ mSecure = n; }
bool getSecure() const A_WARN_UNUSED
{ return mSecure; }
int getBpp() const A_WARN_UNUSED
{ return mBpp; }
bool getFullScreen() const A_WARN_UNUSED
{ return mFullscreen; }
bool getHWAccel() const A_WARN_UNUSED
{ return mHWAccel; }
bool getDoubleBuffer() const A_WARN_UNUSED
{ return mDoubleBuffer; }
RenderType getOpenGL() const A_WARN_UNUSED
{ return mOpenGL; }
void setNoFrame(const bool n)
{ mNoFrame = n; }
const std::string &getName() const A_WARN_UNUSED
{ return mName; }
virtual void initArrays()
{ }
virtual void setColor(const Color &color)
{
mColor = color;
mColor2 = color;
mAlpha = (color.a != 255);
}
void setColor2(const Color &color)
{ mColor2 = color; }
void setColorAll(const Color &color, const Color &color2)
{
mColor = color;
mColor2 = color2;
mAlpha = (color.a != 255);
}
const Color &getColor() const
{ return mColor; }
const Color &getColor2() const
{ return mColor2; }
#ifdef DEBUG_DRAW_CALLS
virtual unsigned int getDrawCalls() const
{ return 0; }
#endif
#ifdef DEBUG_BIND_TEXTURE
virtual unsigned int getBinds() const
{ return 0; }
#endif
#ifdef USE_SDL2
void dumpRendererInfo(const char *const str,
const SDL_RendererInfo &info);
virtual void setRendererFlags(const uint32_t flags A_UNUSED)
{ }
#endif
/**
* Blits an image onto the screen.
*
* @return true if the image was blitted properly
* false otherwise.
*/
virtual bool drawImage(const Image *const image,
int dstX, int dstY) = 0;
virtual void drawImageCached(const Image *const image,
int srcX, int srcY) = 0;
virtual void drawPatternCached(const Image *const image,
const int x, const int y,
const int w, const int h) = 0;
virtual void completeCache() = 0;
int getScale() const
{ return mScale; }
virtual bool isAllowScale() const
{ return false; }
void setScale(int scale);
/**
* Pushes a clip area onto the stack. The x and y coordinates in the
* rectangle is relative to the last pushed clip area.
* If the new area falls outside the current clip area, it will be
* clipped as necessary.
*
* If a clip area is outside of the top clip area a clip area with
* zero width and height will be pushed.
*
* @param area The clip area to be pushed onto the stack.
* @return False if the the new area lays outside the current clip
* area.
*/
virtual bool pushClipArea(Rectangle area);
/**
* Removes the top most clip area from the stack.
*
* @throws Exception if the stack is empty.
*/
virtual void popClipArea();
/**
* Ddraws a line.
*
* @param x1 The first x coordinate.
* @param y1 The first y coordinate.
* @param x2 The second x coordinate.
* @param y2 The second y coordinate.
*/
virtual void drawLine(int x1, int y1, int x2, int y2) = 0;
/**
* Draws a simple, non-filled, rectangle with a one pixel width.
*
* @param rectangle The rectangle to draw.
*/
virtual void drawRectangle(const Rectangle &rectangle) = 0;
/**
* Gets the current clip area. Usefull if you want to do drawing
* bypassing Graphics.
*
* @return The current clip area.
*/
virtual const ClipRectangle *getCurrentClipArea() const;
/**
* Draws a single point/pixel.
*
* @param x The x coordinate.
* @param y The y coordinate.
*/
virtual void drawPoint(int x, int y) = 0;
/**
* Initializes drawing. Called by the Gui when Gui::draw() is called.
* It is needed by some implementations of Graphics to perform
* preparations before drawing. An example of such an implementation
* is the OpenGLGraphics.
*
* NOTE: You will never need to call this function yourself, unless
* you use a Graphics object outside of Guichan.
*
* @see _endDraw, Gui::draw
*/
virtual void _beginDraw()
{ }
/**
* Deinitializes drawing. Called by the Gui when a Gui::draw() is done.
* done. It should reset any state changes made by _beginDraw().
*
* NOTE: You will never need to call this function yourself, unless
* you use a Graphics object outside of Guichan.
*
* @see _beginDraw, Gui::draw
*/
virtual void _endDraw()
{ }
int mWidth;
int mHeight;
int mActualWidth;
int mActualHeight;
protected:
/**
* Constructor.
*/
Graphics();
void setMainFlags(const int w, const int h,
const int scale,
const int bpp,
const bool fs,
const bool hwaccel,
const bool resize,
const bool noFrame);
int getOpenGLFlags() const A_WARN_UNUSED;
int getSoftwareFlags() const A_WARN_UNUSED;
bool setOpenGLMode();
void updateMemoryInfo();
bool videoInfo();
/**
* Holds the clip area stack.
*/
std::stack mClipStack;
SDL_Window *mWindow;
#ifdef USE_SDL2
SDL_Renderer *mRenderer;
#ifdef USE_OPENGL
SDL_GLContext mGLContext;
#endif
#endif
int mBpp;
bool mAlpha;
bool mFullscreen;
bool mHWAccel;
bool mRedraw;
bool mDoubleBuffer;
SDL_Rect mRect;
bool mSecure;
RenderType mOpenGL;
bool mEnableResize;
bool mNoFrame;
std::string mName;
int mStartFreeMem;
bool mSync;
int mScale;
Color mColor;
Color mColor2;
};
extern Graphics *mainGraphics;
#endif // RENDER_GRAPHICS_H