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authorStéphane Marchesin <marcheu@chromium.org>2012-04-12 18:30:59 -0700
committerStéphane Marchesin <marcheu@chromium.org>2012-04-12 18:30:59 -0700
commit05265bee8554241d98e741643d62ad2f8d270192 (patch)
tree40a9597be99f05156d055e9b806a68c2ca9062e7
parent0d2bc18e4dd37892f2de0cf0cf4b9ed44cbc0cbc (diff)
Revert "i915g: Remove unused poly stipple state."
-rw-r--r--src/gallium/drivers/i915/i915_context.h1
-rw-r--r--src/gallium/drivers/i915/i915_state_dynamic.c53
2 files changed, 54 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_context.h b/src/gallium/drivers/i915/i915_context.h
index 5790a2d0d26..b019c9f342a 100644
--- a/src/gallium/drivers/i915/i915_context.h
+++ b/src/gallium/drivers/i915/i915_context.h
@@ -239,6 +239,7 @@ struct i915_context {
struct pipe_clip_state clip;
struct pipe_resource *constants[PIPE_SHADER_TYPES];
struct pipe_framebuffer_state framebuffer;
+ struct pipe_poly_stipple poly_stipple;
struct pipe_scissor_state scissor;
struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_SAMPLERS];
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
};