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SDL_blit_N.c (BlitNtoNKeyCopyAlpha): fix -Wshadow warnings by adding _

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suffix to the temp Pixel local in the DUFFS_LOOP.
SDL_blit.h (ASSEMBLE_RGB):  add _ prefix to temp Pixel locals to avoid
  any possible shadowings.


The warnings were like the following:

In file included from src/video/SDL_blit_N.c:26:0:
src/video/SDL_blit_N.c: In function 'BlitNtoNKeyCopyAlpha':
src/video/SDL_blit_N.c:2421:24: warning: declaration of 'Pixel' shadows a previous local [-Wshadow]
                 Uint32 Pixel = ((*src32 & rgbmask) == ckey) ? *dst32 : *src32;
                        ^
src/video/SDL_blit.h:475:21: note: in definition of macro 'DUFFS_LOOP8'
     case 0: do {    pixel_copy_increment; /* fallthrough */             \
                     ^
src/video/SDL_blit_N.c:2419:13: note: in expansion of macro 'DUFFS_LOOP'
             DUFFS_LOOP(
             ^
src/video/SDL_blit_N.c:2399:12: warning: shadowed declaration is here [-Wshadow]
     Uint32 Pixel;
            ^
This commit is contained in:
Ozkan Sezer 2018-10-01 21:29:11 +03:00
parent b251876126
commit 922623e1b6
2 changed files with 12 additions and 12 deletions
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20
src/video/SDL_blit.h
View File

@ -126,7 +126,7 @@ extern SDL_BlitFunc SDL_CalculateBlitA(SDL_Surface * surface);
b = SDL_expand_byte[fmt->Bloss][((Pixel&fmt->Bmask)>>fmt->Bshift)]; \ b = SDL_expand_byte[fmt->Bloss][((Pixel&fmt->Bmask)>>fmt->Bshift)]; \
} }
#define RGB_FROM_RGB565(Pixel, r, g, b) \ #define RGB_FROM_RGB565(Pixel, r, g, b) \
{ \ { \
r = SDL_expand_byte[3][((Pixel&0xF800)>>11)]; \ r = SDL_expand_byte[3][((Pixel&0xF800)>>11)]; \
g = SDL_expand_byte[2][((Pixel&0x07E0)>>5)]; \ g = SDL_expand_byte[2][((Pixel&0x07E0)>>5)]; \
b = SDL_expand_byte[3][(Pixel&0x001F)]; \ b = SDL_expand_byte[3][(Pixel&0x001F)]; \
@ -262,18 +262,18 @@ do { \
{ \ { \
switch (bpp) { \ switch (bpp) { \
case 1: { \ case 1: { \
Uint8 Pixel; \ Uint8 _Pixel; \
\ \
PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ PIXEL_FROM_RGB(_Pixel, fmt, r, g, b); \
*((Uint8 *)(buf)) = Pixel; \ *((Uint8 *)(buf)) = _Pixel; \
} \ } \
break; \ break; \
\ \
case 2: { \ case 2: { \
Uint16 Pixel; \ Uint16 _Pixel; \
\ \
PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ PIXEL_FROM_RGB(_Pixel, fmt, r, g, b); \
*((Uint16 *)(buf)) = Pixel; \ *((Uint16 *)(buf)) = _Pixel; \
} \ } \
break; \ break; \
\ \
@ -291,10 +291,10 @@ do { \
break; \ break; \
\ \
case 4: { \ case 4: { \
Uint32 Pixel; \ Uint32 _Pixel; \
\ \
PIXEL_FROM_RGB(Pixel, fmt, r, g, b); \ PIXEL_FROM_RGB(_Pixel, fmt, r, g, b); \
*((Uint32 *)(buf)) = Pixel; \ *((Uint32 *)(buf)) = _Pixel; \
} \ } \
break; \ break; \
} \ } \

4
src/video/SDL_blit_N.c
View File

@ -2418,8 +2418,8 @@ BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info)
/* *INDENT-OFF* */ /* *INDENT-OFF* */
DUFFS_LOOP( DUFFS_LOOP(
{ {
Uint32 Pixel = ((*src32 & rgbmask) == ckey) ? *dst32 : *src32; Uint32 Pixel_ = ((*src32 & rgbmask) == ckey) ? *dst32 : *src32;
*dst32 = Pixel; *dst32 = Pixel_;
++src32; ++src32;
++dst32; ++dst32;
}, },