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gallium: Allow pipe format component sizes to be specified

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with finer granularity.

This will allow us to define A2R10G10B10 format.
This commit is contained in:
Michal Krol 2008-06-13 14:50:29 +02:00
parent b850453497
commit 6f548c88e2
1 changed files with 14 additions and 8 deletions
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22
src/gallium/include/pipe/p_format.h
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@ -121,21 +121,21 @@ static INLINE uint pf_get(pipe_format_rgbazs_t f, uint shift, uint mask)
#define pf_size_z(f) pf_get(f, 20, 0x7) /**< Size of Z */
#define pf_size_w(f) pf_get(f, 23, 0x7) /**< Size of W */
#define pf_size_xyzw(f,i) pf_get(f, 14+((i)*3), 0x7)
#define pf_exp8(f) pf_get(f, 26, 0x3) /**< Scale size by 8 ^ exp8 */
#define pf_type(f) pf_get(f, 28, 0xf) /**< PIPE_FORMAT_TYPE_ */
#define pf_exp2(f) pf_get(f, 26, 0x7) /**< Scale size by 2 ^ exp2 */
#define pf_type(f) pf_get(f, 29, 0x7) /**< PIPE_FORMAT_TYPE_ */
/**
* Helper macro to encode the above structure into a 32-bit value.
*/
#define _PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, EXP8, TYPE ) (\
#define _PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, EXP2, TYPE ) (\
(PIPE_FORMAT_LAYOUT_RGBAZS << 0) |\
((SWZ) << 2) |\
((SIZEX) << 14) |\
((SIZEY) << 17) |\
((SIZEZ) << 20) |\
((SIZEW) << 23) |\
((EXP8) << 26) |\
((TYPE) << 28) )
((EXP2) << 26) |\
((TYPE) << 29) )
/**
* Helper macro to encode the swizzle part of the structure above.
@ -148,17 +148,23 @@ static INLINE uint pf_get(pipe_format_rgbazs_t f, uint shift, uint mask)
#define _PIPE_FORMAT_RGBAZS_1( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, TYPE )\
_PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, 0, TYPE )
/**
* Shorthand macro for RGBAZS layout with component sizes in 2-bit units.
*/
#define _PIPE_FORMAT_RGBAZS_2( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, TYPE )\
_PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, 1, TYPE )
/**
* Shorthand macro for RGBAZS layout with component sizes in 8-bit units.
*/
#define _PIPE_FORMAT_RGBAZS_8( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, TYPE )\
_PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, 1, TYPE )
_PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, 3, TYPE )
/**
* Shorthand macro for RGBAZS layout with component sizes in 64-bit units.
*/
#define _PIPE_FORMAT_RGBAZS_64( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, TYPE )\
_PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, 2, TYPE )
_PIPE_FORMAT_RGBAZS( SWZ, SIZEX, SIZEY, SIZEZ, SIZEW, 6, TYPE )
/**
* Shorthand macro for common format swizzles.
@ -359,7 +365,7 @@ static INLINE uint pf_get_component_bits( enum pipe_format format, uint comp )
else {
size = 0;
}
return size << (pf_exp8(format) * 3);
return size << pf_exp2(format);
}
/**