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| author | Mathias Fröhlich <mathias.froehlich@web.de> | 2016-05-22 14:10:19 +0200 |
|---|---|---|
| committer | Mathias Fröhlich <mathias.froehlich@web.de> | 2016-06-16 05:50:55 +0200 |
| commit | 53691b7cb1246286db38db04f8aeb88fef75feb7 (patch) | |
| tree | 129438086946d264026edafeb0a553ec6cc23c35 /src/mesa/drivers/dri/i965/brw_draw.c | |
| parent | b670f0d1d741d176c155df062e861c2f2a9e4ee6 (diff) | |
| download | external_mesa3d-53691b7cb1246286db38db04f8aeb88fef75feb7.zip external_mesa3d-53691b7cb1246286db38db04f8aeb88fef75feb7.tar.gz external_mesa3d-53691b7cb1246286db38db04f8aeb88fef75feb7.tar.bz2 | |
i965: Use bitmask/ffs to iterate used vertex attributes.
Replaces an iterate and test bit in a bitmask loop by a
loop only iterating over the bits set in the bitmask.
v2: Use _mesa_bit_scan{,64} instead of open coding.
v3: Use u_bit_scan{,64} instead of _mesa_bit_scan{,64}.
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_draw.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_draw.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c index fa3ff5f..d7a1ba3 100644 --- a/src/mesa/drivers/dri/i965/brw_draw.c +++ b/src/mesa/drivers/dri/i965/brw_draw.c @@ -38,6 +38,7 @@ #include "swrast/swrast.h" #include "swrast_setup/swrast_setup.h" #include "drivers/common/meta.h" +#include "util/bitscan.h" #include "brw_blorp.h" #include "brw_draw.h" @@ -301,16 +302,15 @@ brw_merge_inputs(struct brw_context *brw, } if (brw->gen < 8 && !brw->is_haswell) { - struct gl_program *vp = &ctx->VertexProgram._Current->Base; + GLbitfield64 mask = ctx->VertexProgram._Current->Base.InputsRead; /* Prior to Haswell, the hardware can't natively support GL_FIXED or * 2_10_10_10_REV vertex formats. Set appropriate workaround flags. */ - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - if (!(vp->InputsRead & BITFIELD64_BIT(i))) - continue; - + while (mask) { uint8_t wa_flags = 0; + i = u_bit_scan64(&mask); + switch (brw->vb.inputs[i].glarray->Type) { case GL_FIXED: |