freedreno/a3xx: add support to emulate GL_CLAMP

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/ir3/ir3_shader.h b/src/gallium/drivers/freedreno/ir3/ir3_shader.h
index ea861649176..04a737ef19d 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_shader.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3_shader.h
@@ -52,8 +52,23 @@ static inline uint16_t sem2idx(ir3_semantic sem)
 /* Configuration key used to identify a shader variant.. different
  * shader variants can be used to implement features not supported
  * in hw (two sided color), binning-pass vertex shader, etc.
+ *
+ * TODO since shader key is starting to get larger (than 32bit)
+ * we probably should pass it around by ptr rather than value more
+ * of the places.. but watch out in ir3_shader_variant() where the
+ * key gets normalized, we need to make a copy there.
  */
 struct ir3_shader_key {
+	/* bitmask of sampler which needs coords clamped for vertex
+	 * shader:
+	 */
+	unsigned vsaturate_s, vsaturate_t, vsaturate_r;
+
+	/* bitmask of sampler which needs coords clamped for frag
+	 * shader:
+	 */
+	unsigned fsaturate_s, fsaturate_t, fsaturate_r;
+
 	/*
 	 * Vertex shader variant parameters:
 	 */