diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_sf_state.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c index 84028e4e758..45bd269914a 100644 --- a/src/mesa/drivers/dri/i965/gen6_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c @@ -100,10 +100,11 @@ upload_sf_state(struct brw_context *brw) int i; /* _NEW_BUFFER */ GLboolean render_to_fbo = brw->intel.ctx.DrawBuffer->Name != 0; - int attr = 0; + int attr = 0, input_index = 0; int urb_start; int two_side_color = (ctx->Light.Enabled && ctx->Light.Model.TwoSide); float point_size; + uint16_t attr_overrides[FRAG_ATTRIB_MAX]; /* _NEW_TRANSFORM */ if (ctx->Transform.ClipPlanesEnabled) @@ -243,6 +244,27 @@ upload_sf_state(struct brw_context *brw) ((brw->fragment_program->Base.InputsRead & FRAG_BIT_WPOS) ? 0 : 1)); } + /* Create the mapping from the FS inputs we produce to the VS outputs + * they source from. + */ + for (; attr < FRAG_ATTRIB_MAX; attr++) { + if (!(brw->fragment_program->Base.InputsRead & BITFIELD64_BIT(attr))) + continue; + + /* The hardware can only do the overrides on 16 overrides at a + * time, and the other up to 16 have to be lined up so that the + * input index = the output index. We'll need to do some + * tweaking to make sure that's the case. + */ + assert(input_index < 16 || attr == input_index); + + attr_overrides[input_index++] = get_attr_override(brw, attr, + two_side_color); + } + + for (; input_index < FRAG_ATTRIB_MAX; input_index++) + attr_overrides[input_index] = 0; + BEGIN_BATCH(20); OUT_BATCH(_3DSTATE_SF << 16 | (20 - 2)); OUT_BATCH(dw1); @@ -253,24 +275,7 @@ 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++) { - uint32_t attr_overrides = 0; - - for (; attr < 64; attr++) { - if (brw->fragment_program->Base.InputsRead & BITFIELD64_BIT(attr)) { - attr_overrides |= get_attr_override(brw, attr, two_side_color); - attr++; - break; - } - } - - for (; attr < 64; attr++) { - if (brw->fragment_program->Base.InputsRead & BITFIELD64_BIT(attr)) { - attr_overrides |= get_attr_override(brw, attr, two_side_color) << 16; - attr++; - break; - } - } - OUT_BATCH(attr_overrides); + OUT_BATCH(attr_overrides[i * 2] | attr_overrides[i * 2 + 1] << 16); } OUT_BATCH(dw16); /* point sprite texcoord bitmask */ OUT_BATCH(dw17); /* constant interp bitmask */ |