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Removed halfW/H caching in Surface

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This is a very cheap computation, no need to cache it.
This commit is contained in:
Maarten ter Huurne 2014-08-10 02:54:10 +02:00
parent 7c4fa5d77a
commit 614f74a63d
2 changed files with 5 additions and 11 deletions
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15
src/surface.cpp
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@ -92,8 +92,6 @@ Surface::Surface(SDL_Surface *raw_, bool freeWhenDone_)
: raw(raw_) : raw(raw_)
, freeWhenDone(freeWhenDone_) , freeWhenDone(freeWhenDone_)
{ {
halfW = raw->w/2;
halfH = raw->h/2;
} }
Surface::Surface(Surface *s) { Surface::Surface(Surface *s) {
@ -104,8 +102,6 @@ Surface::Surface(Surface *s) {
// an alpha channel, such as the display format. // an alpha channel, such as the display format.
raw->format->alpha = s->raw->format->alpha; raw->format->alpha = s->raw->format->alpha;
freeWhenDone = true; freeWhenDone = true;
halfW = raw->w/2;
halfH = raw->h/2;
} }
Surface::~Surface() { Surface::~Surface() {
@ -145,10 +141,9 @@ void Surface::blit(Surface *destination, int x, int y, int w, int h, int a) cons
} }
void Surface::blitCenter(SDL_Surface *destination, int x, int y, int w, int h, int a) const { void Surface::blitCenter(SDL_Surface *destination, int x, int y, int w, int h, int a) const {
int oh, ow; int ow = raw->w / 2; if (w != 0) ow = min(ow, w / 2);
if (w==0) ow = halfW; else ow = min(halfW,w/2); int oh = raw->h / 2; if (h != 0) oh = min(oh, h / 2);
if (h==0) oh = halfH; else oh = min(halfH,h/2); blit(destination, x - ow, y - oh, w, h, a);
blit(destination,x-ow,y-oh,w,h,a);
} }
void Surface::blitCenter(Surface *destination, int x, int y, int w, int h, int a) const { void Surface::blitCenter(Surface *destination, int x, int y, int w, int h, int a) const {
blitCenter(destination->raw,x,y,w,h,a); blitCenter(destination->raw,x,y,w,h,a);
@ -239,7 +234,7 @@ void Surface::blit(Surface *destination, SDL_Rect container, Font::HAlign halign
case Font::HAlignLeft: case Font::HAlignLeft:
break; break;
case Font::HAlignCenter: case Font::HAlignCenter:
container.x += container.w/2-halfW; container.x += container.w / 2 - raw->w / 2;
break; break;
case Font::HAlignRight: case Font::HAlignRight:
container.x += container.w-raw->w; container.x += container.w-raw->w;
@ -250,7 +245,7 @@ void Surface::blit(Surface *destination, SDL_Rect container, Font::HAlign halign
case Font::VAlignTop: case Font::VAlignTop:
break; break;
case Font::VAlignMiddle: case Font::VAlignMiddle:
container.y += container.h/2-halfH; container.y += container.h / 2 - raw->h / 2;
break; break;
case Font::VAlignBottom: case Font::VAlignBottom:
container.y += container.h-raw->h; container.y += container.h-raw->h;

1
src/surface.h
View File

@ -108,7 +108,6 @@ private:
SDL_Surface *raw; SDL_Surface *raw;
bool freeWhenDone; bool freeWhenDone;
int halfW, halfH;
// For direct access to "raw". // For direct access to "raw".
friend class Font; friend class Font;