/**
* Recreates the surface with a new size.
* Old contents will not be altered, and may be
* cropped to fit the new size.
* @param width Width in pixels.
* @param height Height in pixels.
*/
void Surface::resize(int width, int height)
{
// Set up new surface
Uint8 bpp = _surface->format->BitsPerPixel;
int pitch = GetPitch(bpp, width);
void *alignedBuffer = NewAligned(bpp, width, height);
SDL_Surface *surface = SDL_CreateRGBSurfaceFrom(alignedBuffer, width, height, bpp, pitch, 0, 0, 0, 0);
if (surface == 0)
{
throw Exception(SDL_GetError());
}
// Copy old contents
SDL_SetColorKey(surface, SDL_SRCCOLORKEY, 0);
SDL_SetColors(surface, getPalette(), 0, 255);
SDL_BlitSurface(_surface, 0, surface, 0);
// Delete old surface
DeleteAligned(_alignedBuffer);
SDL_FreeSurface(_surface);
_alignedBuffer = alignedBuffer;
_surface = surface;
_clear.w = getWidth();
_clear.h = getHeight();
}
/**
* Sets up a blank 8bpp surface with the specified size and position,
* with pure black as the transparent color.
* @note Surfaces don't have to fill the whole size since their
* background is transparent, specially subclasses with their own
* drawing logic, so it just covers the maximum drawing area.
* @param width Width in pixels.
* @param height Height in pixels.
* @param x X position in pixels.
* @param y Y position in pixels.
* @param bpp Bits-per-pixel depth.
*/
Surface::Surface(int width, int height, int x, int y, int bpp) : _x(x), _y(y), _visible(true), _hidden(false), _redraw(false), _originalColors(0), _alignedBuffer(0)
{
_alignedBuffer = NewAligned(bpp, width, height);
_surface = SDL_CreateRGBSurfaceFrom(_alignedBuffer, width, height, bpp, GetPitch(bpp, width), 0, 0, 0, 0);
if (_surface == 0)
{
throw Exception(SDL_GetError());
}
SDL_SetColorKey(_surface, SDL_SRCCOLORKEY, 0);
_crop.w = 0;
_crop.h = 0;
_crop.x = 0;
_crop.y = 0;
_dx = Screen::getDX();
_dy = Screen::getDY();
}
/**
* Sets up a blank 8bpp surface with the specified size and position,
* with pure black as the transparent color.
* @note Surfaces don't have to fill the whole size since their
* background is transparent, specially subclasses with their own
* drawing logic, so it just covers the maximum drawing area.
* @param width Width in pixels.
* @param height Height in pixels.
* @param x X position in pixels.
* @param y Y position in pixels.
* @param bpp Bits-per-pixel depth.
*/
Surface::Surface(int width, int height, int x, int y, int bpp) : _x(x), _y(y), _visible(true), _hidden(false), _redraw(false), _tftdMode(false), _alignedBuffer(0)
{
_alignedBuffer = NewAligned(bpp, width, height);
_surface = SDL_CreateRGBSurfaceFrom(_alignedBuffer, width, height, bpp, GetPitch(bpp, width), 0, 0, 0, 0);
if (_surface == 0)
{
throw Exception(SDL_GetError());
}
SDL_SetColorKey(_surface, SDL_SRCCOLORKEY, 0);
_crop.w = 0;
_crop.h = 0;
_crop.x = 0;
_crop.y = 0;
_clear.x = 0;
_clear.y = 0;
_clear.w = getWidth();
_clear.h = getHeight();
}
/**
* Performs a deep copy of an existing surface.
* @param other Surface to copy from.
*/
Surface::Surface(const Surface& other)
{
//if is native OpenXcom aligned surface
if(other._alignedBuffer)
{
Uint8 bpp = other._surface->format->BitsPerPixel;
int width = other.getWidth();
int height = other.getHeight();
int pitch = GetPitch(bpp, width);
_alignedBuffer = NewAligned(bpp, width, height);
_surface = SDL_CreateRGBSurfaceFrom(_alignedBuffer, width, height, bpp, pitch, 0, 0, 0, 0);
SDL_SetColorKey(_surface, SDL_SRCCOLORKEY, 0);
//cant call `SetPalette` because its vitual function and it dont work correctly in constructor
//additionally it use original colors, not temporarily ones.
SDL_SetColors(_surface, other._originalColors ? other._originalColors : other.getPalette(), 0, 255);
memcpy(_alignedBuffer, other._alignedBuffer, height*pitch);
}
else
{
_surface = SDL_ConvertSurface(other._surface, other._surface->format, other._surface->flags);
_alignedBuffer = 0;
}
if (_surface == 0)
{
throw Exception(SDL_GetError());
}
_x = other._x;
_y = other._y;
_crop.w = other._crop.w;
_crop.h = other._crop.h;
_crop.x = other._crop.x;
_crop.y = other._crop.y;
_visible = other._visible;
_hidden = other._hidden;
_redraw = other._redraw;
_originalColors = 0;
_dx = other._dx;
_dy = other._dy;
}
