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authorZack Rusin <[email protected]>2013-07-31 07:34:49 -0400
committerZack Rusin <[email protected]>2013-08-02 20:11:18 -0400
commitd6b3a193d4d525c5048ebf793e6a63fd98f92d64 (patch)
tree03fa602befb47cfa29efad7bc1c85e1ec645e92a /src/gallium/drivers/i915
parent05487ef88ded5fea0b1de7bc08d44846648d1ce2 (diff)
draw: inject frontface info into wireframe outputs
Draw module can decompose primitives into wireframe models, which is a fancy word for 'lines', unfortunately that decomposition means that we weren't able to preserve the original front-face info which could be derived from the original primitives (lines don't have a 'face'). To fix it allow draw module to inject a fake face semantic into outputs from which the backends can figure out the original frontfacing info of the primitives. Signed-off-by: Zack Rusin <[email protected]> Reviewed-by: Roland Scheidegger <[email protected]> Reviewed-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'src/gallium/drivers/i915')
-rw-r--r--src/gallium/drivers/i915/i915_state_derived.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_state_derived.c b/src/gallium/drivers/i915/i915_state_derived.c
index e01f16e715c..e1d18403d5d 100644
--- a/src/gallium/drivers/i915/i915_state_derived.c
+++ b/src/gallium/drivers/i915/i915_state_derived.c
@@ -67,6 +67,8 @@ static void calculate_vertex_layout(struct i915_context *i915)
colors[0] = colors[1] = fog = needW = face = FALSE;
memset(&vinfo, 0, sizeof(vinfo));
+ draw_prepare_shader_outputs(i915->draw);
+
/* Determine which fragment program inputs are needed. Setup HW vertex
* layout below, in the HW-specific attribute order.
*/