diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_sf_state.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c index 18fab61556..8d96b44f1d 100644 --- a/src/mesa/drivers/dri/i965/gen6_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c @@ -32,6 +32,25 @@ #include "main/macros.h" #include "intel_batchbuffer.h" +static uint32_t +get_attr_override(struct brw_context *brw, int attr) +{ + uint32_t attr_override; + int attr_index = 0, i; + + /* Find the source index (0 = first attribute after the 4D position) + * for this output attribute. attr is currently a VERT_RESULT_* but should + * be FRAG_ATTRIB_*. + */ + for (i = 0; i < attr; i++) { + if (brw->vs.prog_data->outputs_written & BITFIELD64_BIT(i)) + attr_index++; + } + attr_override = attr_index; + + return attr_index; +} + static void upload_sf_state(struct brw_context *brw) { @@ -45,6 +64,7 @@ upload_sf_state(struct brw_context *brw) int i; /* _NEW_BUFFER */ GLboolean render_to_fbo = brw->intel.ctx.DrawBuffer->Name != 0; + int attr = 0; dw1 = num_outputs << GEN6_SF_NUM_OUTPUTS_SHIFT | @@ -122,8 +142,27 @@ upload_sf_state(struct brw_context *brw) OUT_BATCH_F(ctx->Polygon.OffsetFactor); /* scale */ OUT_BATCH_F(0.0); /* XXX: global depth offset clamp */ for (i = 0; i < 8; i++) { - /* attribute overrides */ - OUT_BATCH(0); + uint32_t attr_overrides = 0; + + /* These should be generating FS inputs read instead of VS + * outputs written + */ + for (; attr < 64; attr++) { + if (brw->vs.prog_data->outputs_written & BITFIELD64_BIT(attr)) { + attr_overrides |= get_attr_override(brw, attr); + attr++; + break; + } + } + + for (; attr < 64; attr++) { + if (brw->vs.prog_data->outputs_written & BITFIELD64_BIT(attr)) { + attr_overrides |= get_attr_override(brw, attr) << 16; + attr++; + break; + } + } + OUT_BATCH(attr_overrides); } OUT_BATCH(0); /* point sprite texcoord bitmask */ OUT_BATCH(0); /* constant interp bitmask */ |