diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/radeon_program.h')
| -rw-r--r-- | src/mesa/drivers/dri/r300/radeon_program.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/radeon_program.h b/src/mesa/drivers/dri/r300/radeon_program.h index b411f69bc8..88474d43a2 100644 --- a/src/mesa/drivers/dri/r300/radeon_program.h +++ b/src/mesa/drivers/dri/r300/radeon_program.h @@ -52,6 +52,38 @@ enum { #define SWIZZLE_0000 MAKE_SWIZZLE4(SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ZERO, SWIZZLE_ZERO) #define SWIZZLE_1111 MAKE_SWIZZLE4(SWIZZLE_ONE, SWIZZLE_ONE, SWIZZLE_ONE, SWIZZLE_ONE) +static inline GLuint get_swz(GLuint swz, GLuint idx) +{ + if (idx & 0x4) + return idx; + return GET_SWZ(swz, idx); +} + +static inline GLuint combine_swizzles4(GLuint src, GLuint swz_x, GLuint swz_y, GLuint swz_z, GLuint swz_w) +{ + GLuint ret = 0; + + ret |= get_swz(src, swz_x); + ret |= get_swz(src, swz_y) << 3; + ret |= get_swz(src, swz_z) << 6; + ret |= get_swz(src, swz_w) << 9; + + return ret; +} + +static inline GLuint combine_swizzles(GLuint src, GLuint swz) +{ + GLuint ret = 0; + + ret |= get_swz(src, GET_SWZ(swz, SWIZZLE_X)); + ret |= get_swz(src, GET_SWZ(swz, SWIZZLE_Y)) << 3; + ret |= get_swz(src, GET_SWZ(swz, SWIZZLE_Z)) << 6; + ret |= get_swz(src, GET_SWZ(swz, SWIZZLE_W)) << 9; + + return ret; +} + + /** * Transformation context that is passed to local transformations. * |