games/vcmi
1
0
Fork 0
mirror of https://github.com/vcmi/vcmi.git synced 2024-11-24 08:32:34 +02:00
Code Issues Releases Activity

Optimized blitWithRotate3.

Browse Source
This commit is contained in:
Frank Zago 2009-05-27 23:43:47 +00:00
parent af5dfd9dbc
commit 79cd541bbf
2 changed files with 19 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
client/SDL_Extensions.cpp
View File

@ -523,21 +523,29 @@ void CSDL_Ext::blitWithRotate2clip(const SDL_Surface *src, const SDL_Rect * srcR
blitWithRotate2(src,srcRect,dst,&realDest);
}
void CSDL_Ext::blitWithRotate3(SDL_Surface *src,SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24bpp dests
void CSDL_Ext::blitWithRotate3(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect)//srcRect is not used, works with 8bpp sources and 24/32 bpp dests
{
Uint8 *dp, *sp = (Uint8 *)src->pixels;
for(int i=0; i<dstRect->h; i++)
Uint8 *sp = (Uint8 *)src->pixels;
const int bpp = dst->format->BytesPerPixel;
Uint8 *dporg = (Uint8 *)dst->pixels +(dstRect->y + dstRect->h - 1)*dst->pitch + (dstRect->x+dstRect->w)*bpp;
const SDL_Color * const colors = src->format->palette->colors;
for(int i=dstRect->h; i>0; i--, dporg -= dst->pitch)
{
Uint8 *dp = dporg;
sp += src->w - dstRect->w;
dp = (Uint8 *)dst->pixels + (dstRect->y + dstRect->h - 1 - i)*dst->pitch + (dstRect->x+dstRect->w)*dst->format->BytesPerPixel;
for(int j=0; j<dstRect->w; j++, sp++)
for(int j=dstRect->w; j>0; j--, sp++)
{
const SDL_Color * const color = src->format->palette->colors+(*sp);
if (dst->format->BytesPerPixel == 4)
const SDL_Color color = colors[*sp];
if (bpp == 4)
*(--dp) = 0;
*(--dp) = color->r;
*(--dp) = color->g;
*(--dp) = color->b;
*(--dp) = color.r;
*(--dp) = color.g;
*(--dp) = color.b;
}
}
}

2
client/SDL_Extensions.h
View File

@ -62,7 +62,7 @@ namespace CSDL_Ext
SDL_Surface * alphaTransform(SDL_Surface * src); //adds transparency and shadows (partial handling only; see examples of using for details)
void blitWithRotate1(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests
void blitWithRotate2(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests
void blitWithRotate3(SDL_Surface *src,SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests
void blitWithRotate3(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests
void blitWithRotate1clip(SDL_Surface *src,SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests preserving clip_rect
void blitWithRotate2clip(const SDL_Surface *src, const SDL_Rect * srcRect, SDL_Surface * dst, const SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests preserving clip_rect
void blitWithRotate3clip(SDL_Surface *src,SDL_Rect * srcRect, SDL_Surface * dst, SDL_Rect * dstRect);//srcRect is not used, works with 8bpp sources and 24bpp dests preserving clip_rect