diff options
| author | Eric Anholt <eric@anholt.net> | 2009-08-12 12:26:19 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-08-12 12:43:43 -0700 |
| commit | 536476f2432168fb15ac06b52c953a594ad851ad (patch) | |
| tree | b19ee2947147fee6352202e15dcf084e92417f0d /src/mesa/drivers/dri/i965/brw_wm_emit.c | |
| parent | 792c49968efa20437edb8ca79d75b09e18e57af4 (diff) | |
i965: Handle scalar result swizzling in shared GLSL/non-GLSL code.
This is preparation for merging of brw_wm_glsl.c and
brw_wm_emit.c, and glsl.c doesn't swizzle channel results around.
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_emit.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_emit.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index b9da7e6912..b3cf524c63 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -543,16 +543,18 @@ static void emit_dp3( struct brw_compile *p, const struct brw_reg *arg0, const struct brw_reg *arg1 ) { + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + if (!(mask & WRITEMASK_XYZW)) return; /* Do not emit dead code */ - assert((mask & WRITEMASK_XYZW) == WRITEMASK_X); + assert(is_power_of_two(mask & WRITEMASK_XYZW)); brw_MUL(p, brw_null_reg(), arg0[0], arg1[0]); brw_MAC(p, brw_null_reg(), arg0[1], arg1[1]); brw_set_saturate(p, (mask & SATURATE) ? 1 : 0); - brw_MAC(p, dst[0], arg0[2], arg1[2]); + brw_MAC(p, dst[dst_chan], arg0[2], arg1[2]); brw_set_saturate(p, 0); } @@ -563,17 +565,19 @@ static void emit_dp4( struct brw_compile *p, const struct brw_reg *arg0, const struct brw_reg *arg1 ) { + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + if (!(mask & WRITEMASK_XYZW)) return; /* Do not emit dead code */ - assert((mask & WRITEMASK_XYZW) == WRITEMASK_X); + assert(is_power_of_two(mask & WRITEMASK_XYZW)); brw_MUL(p, brw_null_reg(), arg0[0], arg1[0]); brw_MAC(p, brw_null_reg(), arg0[1], arg1[1]); brw_MAC(p, brw_null_reg(), arg0[2], arg1[2]); brw_set_saturate(p, (mask & SATURATE) ? 1 : 0); - brw_MAC(p, dst[0], arg0[3], arg1[3]); + brw_MAC(p, dst[dst_chan], arg0[3], arg1[3]); brw_set_saturate(p, 0); } @@ -630,18 +634,19 @@ static void emit_math1( struct brw_compile *p, GLuint mask, const struct brw_reg *arg0 ) { + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + if (!(mask & WRITEMASK_XYZW)) return; /* Do not emit dead code */ - //assert((mask & WRITEMASK_XYZW) == WRITEMASK_X || - // function == BRW_MATH_FUNCTION_SINCOS); - + assert(is_power_of_two(mask & WRITEMASK_XYZW)); + brw_MOV(p, brw_message_reg(2), arg0[0]); /* Send two messages to perform all 16 operations: */ brw_math_16(p, - dst[0], + dst[dst_chan], function, (mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE, 2, @@ -657,10 +662,12 @@ static void emit_math2( struct brw_compile *p, const struct brw_reg *arg0, const struct brw_reg *arg1) { + int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1; + if (!(mask & WRITEMASK_XYZW)) return; /* Do not emit dead code */ - assert((mask & WRITEMASK_XYZW) == WRITEMASK_X); + assert(is_power_of_two(mask & WRITEMASK_XYZW)); brw_push_insn_state(p); @@ -679,7 +686,7 @@ static void emit_math2( struct brw_compile *p, */ brw_set_compression_control(p, BRW_COMPRESSION_NONE); brw_math(p, - dst[0], + dst[dst_chan], function, (mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE, 2, @@ -689,7 +696,7 @@ static void emit_math2( struct brw_compile *p, brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF); brw_math(p, - offset(dst[0],1), + offset(dst[dst_chan],1), function, (mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE, 4, |