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| author | Kenneth Graunke <kenneth@whitecape.org> | 2015-10-26 00:52:14 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2015-10-28 22:05:08 -0700 |
| commit | 5392328a3218c0a69301badefe8fed79ca0d8642 (patch) | |
| tree | cf375f1e60fbe0c2a49e18910a9557ea0521f990 /src/mesa/drivers/dri/i965/gen6_sf_state.c | |
| parent | b3d19d20f27c9169641051ac6f855481e58623b3 (diff) | |
| download | external_mesa3d-5392328a3218c0a69301badefe8fed79ca0d8642.zip external_mesa3d-5392328a3218c0a69301badefe8fed79ca0d8642.tar.gz external_mesa3d-5392328a3218c0a69301badefe8fed79ca0d8642.tar.bz2 | |
i965: Make calculate_attr_overrides return the URB read offset.
Traditionally, we've hardcoded "URB Entry Read Offset" to 1 (which
represents 2 vec4 varying slots) to skip over the 8 DWord VUE header.
In order to support ARB_fragment_layer_viewport, we'll need to read
from that header. This patch adds the basic plumbing necessary to
calculate a value dynamically and hook it up in the SBE packets.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Diffstat (limited to 'src/mesa/drivers/dri/i965/gen6_sf_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_sf_state.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c index 4068f28..0c8c053 100644 --- a/src/mesa/drivers/dri/i965/gen6_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c @@ -159,14 +159,16 @@ calculate_attr_overrides(const struct brw_context *brw, uint16_t *attr_overrides, uint32_t *point_sprite_enables, uint32_t *flat_enables, - uint32_t *urb_entry_read_length) + uint32_t *urb_entry_read_length, + uint32_t *urb_entry_read_offset) { - const int urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET; uint32_t max_source_attr = 0; *point_sprite_enables = 0; *flat_enables = 0; + *urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET; + /* _NEW_LIGHT */ bool shade_model_flat = brw->ctx.Light.ShadeModel == GL_FLAT; @@ -228,7 +230,7 @@ calculate_attr_overrides(const struct brw_context *brw, /* BRW_NEW_VUE_MAP_GEOM_OUT | _NEW_LIGHT | _NEW_PROGRAM */ uint16_t attr_override = point_sprite ? 0 : get_attr_override(&brw->vue_map_geom_out, - urb_entry_read_offset, attr, + *urb_entry_read_offset, attr, brw->ctx.VertexProgram._TwoSideEnabled, &max_source_attr); @@ -276,7 +278,6 @@ upload_sf_state(struct brw_context *brw) bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer); const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1; - const int urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET; float point_size; uint16_t attr_overrides[16]; uint32_t point_sprite_origin; @@ -411,8 +412,10 @@ upload_sf_state(struct brw_context *brw) * _NEW_POINT | _NEW_LIGHT | _NEW_PROGRAM | BRW_NEW_FS_PROG_DATA */ uint32_t urb_entry_read_length; + uint32_t urb_entry_read_offset; calculate_attr_overrides(brw, attr_overrides, &point_sprite_enables, - &flat_enables, &urb_entry_read_length); + &flat_enables, &urb_entry_read_length, + &urb_entry_read_offset); dw1 |= (urb_entry_read_length << GEN6_SF_URB_ENTRY_READ_LENGTH_SHIFT | urb_entry_read_offset << GEN6_SF_URB_ENTRY_READ_OFFSET_SHIFT); |