diff options
Diffstat (limited to 'src/utils/sdlpixel.h')
| -rw-r--r-- | src/utils/sdlpixel.h | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/src/utils/sdlpixel.h b/src/utils/sdlpixel.h index 692615688..a01858831 100644 --- a/src/utils/sdlpixel.h +++ b/src/utils/sdlpixel.h @@ -80,14 +80,14 @@ inline void SDLputPixel(SDL_Surface* surface, int x, int y, if (!surface) return; - int bpp = surface->format->BytesPerPixel; + const int bpp = surface->format->BytesPerPixel; SDL_LockSurface(surface); - Uint8 *p = static_cast<uint8_t*>(surface->pixels) + Uint8 *const p = static_cast<uint8_t*>(surface->pixels) + y * surface->pitch + x * bpp; - Uint32 pixel = SDL_MapRGB(surface->format, + const Uint32 pixel = SDL_MapRGB(surface->format, static_cast<uint8_t>(color.r), static_cast<uint8_t>(color.g), static_cast<uint8_t>(color.b)); @@ -131,13 +131,14 @@ inline void SDLputPixel(SDL_Surface* surface, int x, int y, * @param dst the destination color. * @param a alpha. */ -inline unsigned int SDLAlpha32(unsigned int src, unsigned int dst, - unsigned char a) +inline unsigned int SDLAlpha32(const unsigned int src, + const unsigned int dst, + const unsigned char a) { - unsigned int b = ((src & 0xff) * a + (dst & 0xff) * (255 - a)) >> 8; - unsigned int g = ((src & 0xff00) * a + (dst & 0xff00) + const unsigned int b = ((src & 0xff) * a + (dst & 0xff) * (255 - a)) >> 8; + const unsigned int g = ((src & 0xff00) * a + (dst & 0xff00) * (255 - a)) >> 8; - unsigned int r = ((src & 0xff0000) * a + (dst & 0xff0000) + const unsigned int r = ((src & 0xff0000) * a + (dst & 0xff0000) * (255 - a)) >> 8; return (b & 0xff) | (g & 0xff00) | (r & 0xff0000); @@ -150,8 +151,10 @@ inline unsigned int SDLAlpha32(unsigned int src, unsigned int dst, * @param dst the destination color. * @param a alpha. */ -inline unsigned short SDLAlpha16(unsigned short src, unsigned short dst, - unsigned char a, const SDL_PixelFormat *f) +inline unsigned short SDLAlpha16(const unsigned short src, + const unsigned short dst, + const unsigned char a, + const SDL_PixelFormat *const f) { unsigned int b = ((src & f->Rmask) * a + (dst & f->Rmask) * (255 - a)) >> 8; @@ -174,14 +177,14 @@ inline unsigned short SDLAlpha16(unsigned short src, unsigned short dst, inline void SDLputPixelAlpha(SDL_Surface* surface, int x, int y, const gcn::Color& color) { - int bpp = surface->format->BytesPerPixel; + const int bpp = surface->format->BytesPerPixel; SDL_LockSurface(surface); - Uint8 *p = static_cast<uint8_t*>(surface->pixels) + Uint8 *const p = static_cast<uint8_t*>(surface->pixels) + y * surface->pitch + x * bpp; - Uint32 pixel = SDL_MapRGB(surface->format, + const Uint32 pixel = SDL_MapRGB(surface->format, static_cast<uint8_t>(color.r), static_cast<uint8_t>(color.g), static_cast<uint8_t>(color.b)); |