diff options
| author | Nicolai Haehnle <prefect@upb.de> | 2007-03-18 02:15:56 +0100 |
|---|---|---|
| committer | Nicolai Haehnle <nhaehnle@gmail.com> | 2007-03-19 18:38:07 +0100 |
| commit | 7b430acd71f04dce3e21bdcfe70115a23d751f30 (patch) | |
| tree | a50e3628283ba79336b6eb74ca9da061f8776917 /src/mesa/drivers/dri/r300/r300_reg.h | |
| parent | 07db8c9115c0b07d79be778976e25f8eb18d42a2 (diff) | |
r300: Fix fragment program instruction pairing and register allocation
There were a number of bugs related to the pairing of vector and scalar
operations where swizzles ended up using the wrong source register,
or an instruction was moved forward and ended up overwriting an aliased
register.
The new algorithm for register allocation is quite conservative and may
run out of registers before necessary. On the plus side, It Just Works.
Pairing is done whenever possible, and in more cases than before, so
in practice this change should be a net win.
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_reg.h')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_reg.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h index 3de15752b1..1f4a2d2e64 100644 --- a/src/mesa/drivers/dri/r300/r300_reg.h +++ b/src/mesa/drivers/dri/r300/r300_reg.h @@ -1047,7 +1047,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. * WRT swizzling. If, for example, you want to load an R component into an * Alpha operand, this R component is taken from a *color* source, not from * an alpha source. The corresponding register doesn't even have to appear in - * the alpha sources list. (I hope this alll makes sense to you) + * the alpha sources list. (I hope this all makes sense to you) * * Destination selection * The destination register index is in FPI1 (color) and FPI3 (alpha) @@ -1074,6 +1074,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. # define R300_FPI1_SRC2C_SHIFT 12 # define R300_FPI1_SRC2C_MASK (31 << 12) # define R300_FPI1_SRC2C_CONST (1 << 17) +# define R300_FPI1_SRC_MASK 0x0003ffff # define R300_FPI1_DSTC_SHIFT 18 # define R300_FPI1_DSTC_MASK (31 << 18) # define R300_FPI1_DSTC_REG_MASK_SHIFT 23 @@ -1095,6 +1096,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. # define R300_FPI3_SRC2A_SHIFT 12 # define R300_FPI3_SRC2A_MASK (31 << 12) # define R300_FPI3_SRC2A_CONST (1 << 17) +# define R300_FPI3_SRC_MASK 0x0003ffff # define R300_FPI3_DSTA_SHIFT 18 # define R300_FPI3_DSTA_MASK (31 << 18) # define R300_FPI3_DSTA_REG (1 << 23) |