indent pixels.c pixels.h
Note - no change to pixels.h
This commit is contained in:
Bill Kendrick
parent
0d8502bdaf
commit
41893a9cda
1 changed files with 74 additions and 82 deletions
156
src/pixels.c
156
src/pixels.c
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@ -37,21 +37,19 @@ static void putpixel8(SDL_Surface * surface, int x, int y, Uint32 pixel)
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Uint8 *p;
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/* Assuming the X/Y values are within the bounds of this surface... */
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if (likely
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(likely((unsigned) x < (unsigned) surface->w)
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&& likely((unsigned) y < (unsigned) surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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x); /* Go in X pixels */
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if (likely(likely((unsigned)x < (unsigned)surface->w) && likely((unsigned)y < (unsigned)surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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x); /* Go in X pixels */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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*p = pixel;
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}
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*p = pixel;
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}
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}
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/* Draw a single pixel into the surface: */
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@ -60,21 +58,19 @@ static void putpixel16(SDL_Surface * surface, int x, int y, Uint32 pixel)
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Uint8 *p;
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/* Assuming the X/Y values are within the bounds of this surface... */
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if (likely
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(likely((unsigned) x < (unsigned) surface->w)
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&& likely((unsigned) y < (unsigned) surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 2)); /* Go in X pixels */
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if (likely(likely((unsigned)x < (unsigned)surface->w) && likely((unsigned)y < (unsigned)surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 2)); /* Go in X pixels */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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*(Uint16 *) p = pixel;
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}
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*(Uint16 *) p = pixel;
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}
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}
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/* Draw a single pixel into the surface: */
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@ -83,33 +79,31 @@ static void putpixel24(SDL_Surface * surface, int x, int y, Uint32 pixel)
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Uint8 *p;
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/* Assuming the X/Y values are within the bounds of this surface... */
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if (likely
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(likely((unsigned) x < (unsigned) surface->w)
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&& likely((unsigned) y < (unsigned) surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 3)); /* Go in X pixels */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
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if (likely(likely((unsigned)x < (unsigned)surface->w) && likely((unsigned)y < (unsigned)surface->h)))
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{
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p[0] = (pixel >> 16) & 0xff;
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p[1] = (pixel >> 8) & 0xff;
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p[2] = pixel & 0xff;
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}
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else
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{
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p[0] = pixel & 0xff;
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p[1] = (pixel >> 8) & 0xff;
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p[2] = (pixel >> 16) & 0xff;
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}
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 3)); /* Go in X pixels */
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}
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
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{
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p[0] = (pixel >> 16) & 0xff;
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p[1] = (pixel >> 8) & 0xff;
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p[2] = pixel & 0xff;
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}
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else
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{
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p[0] = pixel & 0xff;
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p[1] = (pixel >> 8) & 0xff;
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p[2] = (pixel >> 16) & 0xff;
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}
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}
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}
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/* Draw a single pixel into the surface: */
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@ -118,21 +112,19 @@ static void putpixel32(SDL_Surface * surface, int x, int y, Uint32 pixel)
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Uint8 *p;
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/* Assuming the X/Y values are within the bounds of this surface... */
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if (likely
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(likely((unsigned) x < (unsigned) surface->w)
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&& likely((unsigned) y < (unsigned) surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 4)); /* Go in X pixels */
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if (likely(likely((unsigned)x < (unsigned)surface->w) && likely((unsigned)y < (unsigned)surface->h)))
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{
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// Set a pointer to the exact location in memory of the pixel
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start: beginning of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 4)); /* Go in X pixels */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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/* Set the (correctly-sized) piece of data in the surface's RAM
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* to the pixel value sent in: */
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*(Uint32 *) p = pixel; // 32-bit display
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}
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*(Uint32 *) p = pixel; // 32-bit display
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}
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}
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/* Get a pixel: */
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@ -141,17 +133,17 @@ static Uint32 getpixel8(SDL_Surface * surface, int x, int y)
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Uint8 *p;
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/* get the X/Y values within the bounds of this surface */
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if (unlikely((unsigned) x > (unsigned) surface->w - 1u))
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if (unlikely((unsigned)x > (unsigned)surface->w - 1u))
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x = (x < 0) ? 0 : surface->w - 1;
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if (unlikely((unsigned) y > (unsigned) surface->h - 1u))
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if (unlikely((unsigned)y > (unsigned)surface->h - 1u))
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y = (y < 0) ? 0 : surface->h - 1;
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/* Set a pointer to the exact location in memory of the pixel
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in question: */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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x); /* Go in X pixels */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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x); /* Go in X pixels */
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/* Return the correctly-sized piece of data containing the
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@ -167,17 +159,17 @@ static Uint32 getpixel16(SDL_Surface * surface, int x, int y)
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Uint8 *p;
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/* get the X/Y values within the bounds of this surface */
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if (unlikely((unsigned) x > (unsigned) surface->w - 1u))
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if (unlikely((unsigned)x > (unsigned)surface->w - 1u))
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x = (x < 0) ? 0 : surface->w - 1;
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if (unlikely((unsigned) y > (unsigned) surface->h - 1u))
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if (unlikely((unsigned)y > (unsigned)surface->h - 1u))
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y = (y < 0) ? 0 : surface->h - 1;
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/* Set a pointer to the exact location in memory of the pixel
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in question: */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 2)); /* Go in X pixels */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 2)); /* Go in X pixels */
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/* Return the correctly-sized piece of data containing the
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@ -194,17 +186,17 @@ static Uint32 getpixel24(SDL_Surface * surface, int x, int y)
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Uint32 pixel;
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/* get the X/Y values within the bounds of this surface */
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if (unlikely((unsigned) x > (unsigned) surface->w - 1u))
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if (unlikely((unsigned)x > (unsigned)surface->w - 1u))
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x = (x < 0) ? 0 : surface->w - 1;
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if (unlikely((unsigned) y > (unsigned) surface->h - 1u))
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if (unlikely((unsigned)y > (unsigned)surface->h - 1u))
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y = (y < 0) ? 0 : surface->h - 1;
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/* Set a pointer to the exact location in memory of the pixel
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in question: */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 3)); /* Go in X pixels */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 3)); /* Go in X pixels */
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/* Return the correctly-sized piece of data containing the
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@ -227,24 +219,24 @@ static Uint32 getpixel32(SDL_Surface * surface, int x, int y)
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Uint8 *p;
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/* get the X/Y values within the bounds of this surface */
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if (unlikely((unsigned) x > (unsigned) surface->w - 1u))
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if (unlikely((unsigned)x > (unsigned)surface->w - 1u))
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x = (x < 0) ? 0 : surface->w - 1;
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if (unlikely((unsigned) y > (unsigned) surface->h - 1u))
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if (unlikely((unsigned)y > (unsigned)surface->h - 1u))
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y = (y < 0) ? 0 : surface->h - 1;
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/* Set a pointer to the exact location in memory of the pixel
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in question: */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 4)); /* Go in X pixels */
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p = (Uint8 *) (((Uint8 *) surface->pixels) + /* Start at top of RAM */
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(y * surface->pitch) + /* Go down Y lines */
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(x * 4)); /* Go in X pixels */
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/* Return the correctly-sized piece of data containing the
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* pixel's value (an 8-bit palette value, or a 16-, 24- or 32-bit
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* RGB value) */
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return *(Uint32 *) p; // 32-bit display
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return *(Uint32 *) p; // 32-bit display
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}
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void (*putpixels[]) (SDL_Surface *, int, int, Uint32) =
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