diff options
Diffstat (limited to 'src/gallium/drivers/i915/i915_state_dynamic.c')
| -rw-r--r-- | src/gallium/drivers/i915/i915_state_dynamic.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_state_dynamic.c b/src/gallium/drivers/i915/i915_state_dynamic.c index 7e175978658..1a21433eb9e 100644 --- a/src/gallium/drivers/i915/i915_state_dynamic.c +++ b/src/gallium/drivers/i915/i915_state_dynamic.c @@ -194,6 +194,58 @@ const struct i915_tracked_state i915_upload_DEPTHSCALE = { /*********************************************************************** + * Polygon stipple + * + * The i915 supports a 4x4 stipple natively, GL wants 32x32. + * Fortunately stipple is usually a repeating pattern. + * + * XXX: does stipple pattern need to be adjusted according to + * the window position? + * + * XXX: possibly need workaround for conform paths test. + */ +static void upload_STIPPLE(struct i915_context *i915) +{ + unsigned st[2]; + + st[0] = _3DSTATE_STIPPLE; + st[1] = 0; + + /* I915_NEW_RASTERIZER + */ + st[1] |= i915->rasterizer->st; + + /* I915_NEW_STIPPLE + */ + { + const ubyte *mask = (const ubyte *)i915->poly_stipple.stipple; + ubyte p[4]; + + p[0] = mask[12] & 0xf; + p[1] = mask[8] & 0xf; + p[2] = mask[4] & 0xf; + p[3] = mask[0] & 0xf; + + /* Not sure what to do about fallbacks, so for now just dont: + */ + st[1] |= ((p[0] << 0) | + (p[1] << 4) | + (p[2] << 8) | + (p[3] << 12)); + } + + set_dynamic_array(i915, I915_DYNAMIC_STP_0, st, 2); +} + +const struct i915_tracked_state i915_upload_STIPPLE = { + "STIPPLE", + upload_STIPPLE, + I915_NEW_RASTERIZER | I915_NEW_STIPPLE +}; + + + +/*********************************************************************** * Scissor enable */ static void upload_SCISSOR_ENABLE( struct i915_context *i915 ) @@ -243,6 +295,7 @@ static const struct i915_tracked_state *atoms[] = { &i915_upload_BLENDCOLOR, &i915_upload_IAB, &i915_upload_DEPTHSCALE, + &i915_upload_STIPPLE, &i915_upload_SCISSOR_ENABLE, &i915_upload_SCISSOR_RECT }; |