diff options
Diffstat (limited to 'mesalib/src/mesa/main/colormac.h')
| -rw-r--r-- | mesalib/src/mesa/main/colormac.h | 135 |
1 files changed, 2 insertions, 133 deletions
diff --git a/mesalib/src/mesa/main/colormac.h b/mesalib/src/mesa/main/colormac.h index 4b7c3b4a0..4294f3239 100644 --- a/mesalib/src/mesa/main/colormac.h +++ b/mesalib/src/mesa/main/colormac.h @@ -38,137 +38,6 @@ #include "mtypes.h" -/** \def BYTE_TO_CHAN - * Convert from GLbyte to GLchan */ - -/** \def UBYTE_TO_CHAN - * Convert from GLubyte to GLchan */ - -/** \def SHORT_TO_CHAN - * Convert from GLshort to GLchan */ - -/** \def USHORT_TO_CHAN - * Convert from GLushort to GLchan */ - -/** \def INT_TO_CHAN - * Convert from GLint to GLchan */ - -/** \def UINT_TO_CHAN - * Convert from GLuint to GLchan */ - -/** \def CHAN_TO_UBYTE - * Convert from GLchan to GLubyte */ - -/** \def CHAN_TO_FLOAT - * Convert from GLchan to GLfloat */ - -/** \def CLAMPED_FLOAT_TO_CHAN - * Convert from GLclampf to GLchan */ - -/** \def UNCLAMPED_FLOAT_TO_CHAN - * Convert from GLfloat to GLchan */ - -/** \def COPY_CHAN4 - * Copy a GLchan[4] array */ - -#if CHAN_BITS == 8 - -#define BYTE_TO_CHAN(b) ((b) < 0 ? 0 : (GLchan) (b)) -#define UBYTE_TO_CHAN(b) (b) -#define SHORT_TO_CHAN(s) ((s) < 0 ? 0 : (GLchan) ((s) >> 7)) -#define USHORT_TO_CHAN(s) ((GLchan) ((s) >> 8)) -#define INT_TO_CHAN(i) ((i) < 0 ? 0 : (GLchan) ((i) >> 23)) -#define UINT_TO_CHAN(i) ((GLchan) ((i) >> 24)) - -#define CHAN_TO_UBYTE(c) (c) -#define CHAN_TO_USHORT(c) (((c) << 8) | (c)) -#define CHAN_TO_SHORT(c) (((c) << 7) | ((c) >> 1)) -#define CHAN_TO_FLOAT(c) UBYTE_TO_FLOAT(c) - -#define CLAMPED_FLOAT_TO_CHAN(c, f) CLAMPED_FLOAT_TO_UBYTE(c, f) -#define UNCLAMPED_FLOAT_TO_CHAN(c, f) UNCLAMPED_FLOAT_TO_UBYTE(c, f) - -#define COPY_CHAN4(DST, SRC) COPY_4UBV(DST, SRC) - -#elif CHAN_BITS == 16 - -#define BYTE_TO_CHAN(b) ((b) < 0 ? 0 : (((GLchan) (b)) * 516)) -#define UBYTE_TO_CHAN(b) ((((GLchan) (b)) << 8) | ((GLchan) (b))) -#define SHORT_TO_CHAN(s) ((s) < 0 ? 0 : (GLchan) (s)) -#define USHORT_TO_CHAN(s) (s) -#define INT_TO_CHAN(i) ((i) < 0 ? 0 : (GLchan) ((i) >> 15)) -#define UINT_TO_CHAN(i) ((GLchan) ((i) >> 16)) - -#define CHAN_TO_UBYTE(c) ((c) >> 8) -#define CHAN_TO_USHORT(c) (c) -#define CHAN_TO_SHORT(c) ((c) >> 1) -#define CHAN_TO_FLOAT(c) ((GLfloat) ((c) * (1.0 / CHAN_MAXF))) - -#define CLAMPED_FLOAT_TO_CHAN(c, f) CLAMPED_FLOAT_TO_USHORT(c, f) -#define UNCLAMPED_FLOAT_TO_CHAN(c, f) UNCLAMPED_FLOAT_TO_USHORT(c, f) - -#define COPY_CHAN4(DST, SRC) COPY_4V(DST, SRC) - -#elif CHAN_BITS == 32 - -/* XXX floating-point color channels not fully thought-out */ -#define BYTE_TO_CHAN(b) ((GLfloat) ((b) * (1.0F / 127.0F))) -#define UBYTE_TO_CHAN(b) ((GLfloat) ((b) * (1.0F / 255.0F))) -#define SHORT_TO_CHAN(s) ((GLfloat) ((s) * (1.0F / 32767.0F))) -#define USHORT_TO_CHAN(s) ((GLfloat) ((s) * (1.0F / 65535.0F))) -#define INT_TO_CHAN(i) ((GLfloat) ((i) * (1.0F / 2147483647.0F))) -#define UINT_TO_CHAN(i) ((GLfloat) ((i) * (1.0F / 4294967295.0F))) - -#define CHAN_TO_UBYTE(c) FLOAT_TO_UBYTE(c) -#define CHAN_TO_USHORT(c) ((GLushort) (CLAMP((c), 0.0f, 1.0f) * 65535.0)) -#define CHAN_TO_SHORT(c) ((GLshort) (CLAMP((c), 0.0f, 1.0f) * 32767.0)) -#define CHAN_TO_FLOAT(c) (c) - -#define CLAMPED_FLOAT_TO_CHAN(c, f) c = (f) -#define UNCLAMPED_FLOAT_TO_CHAN(c, f) c = (f) - -#define COPY_CHAN4(DST, SRC) COPY_4V(DST, SRC) - -#else - -#error unexpected CHAN_BITS size - -#endif - - -/** - * Convert 3 channels at once. - * - * \param dst pointer to destination GLchan[3] array. - * \param f pointer to source GLfloat[3] array. - * - * \sa #UNCLAMPED_FLOAT_TO_CHAN. - */ -#define UNCLAMPED_FLOAT_TO_RGB_CHAN(dst, f) \ -do { \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[0], (f)[0]); \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[1], (f)[1]); \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[2], (f)[2]); \ -} while (0) - - -/** - * Convert 4 channels at once. - * - * \param dst pointer to destination GLchan[4] array. - * \param f pointer to source GLfloat[4] array. - * - * \sa #UNCLAMPED_FLOAT_TO_CHAN. - */ -#define UNCLAMPED_FLOAT_TO_RGBA_CHAN(dst, f) \ -do { \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[0], (f)[0]); \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[1], (f)[1]); \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[2], (f)[2]); \ - UNCLAMPED_FLOAT_TO_CHAN((dst)[3], (f)[3]); \ -} while (0) - - /** * Convert four float values in [0,1] to ubytes in [0,255] with clamping. */ @@ -205,11 +74,11 @@ _mesa_unclamped_float_rgba_to_ubyte(GLubyte dst[4], const GLfloat src[4]) #define PACK_COLOR_5551( R, G, B, A ) \ ((((R) & 0xf8) << 8) | (((G) & 0xf8) << 3) | (((B) & 0xf8) >> 2) | \ - ((A) ? 1 : 0)) + ((A) >> 7)) #define PACK_COLOR_1555( A, B, G, R ) \ ((((B) & 0xf8) << 7) | (((G) & 0xf8) << 2) | (((R) & 0xf8) >> 3) | \ - ((A) ? 0x8000 : 0)) + (((A) & 0x80) << 8)) #define PACK_COLOR_1555_REV( A, B, G, R ) \ ((((B) & 0xf8) >> 1) | (((G) & 0xc0) >> 6) | (((G) & 0x38) << 10) | (((R) & 0xf8) << 5) | \ |