i965: Add #defines for SAMPLER_STATE fields.

We'll use these to replace the existing structures.

I've adopted the convention that "BRW" applies to all hardware, and
"GENX" applies starting with generation X, but might be replaced by some
later generation.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index c0dfe4f3999d21f06cc040d2bc80b62937b990ec..3564041e645c722e3cbd3ce11f507996deea5eb0 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -610,6 +610,60 @@
 #define HSW_SCS_BLUE                     6
 #define HSW_SCS_ALPHA                    7
 
+/* SAMPLER_STATE DW0 */
+#define BRW_SAMPLER_DISABLE                     (1 << 31)
+#define BRW_SAMPLER_LOD_PRECLAMP_ENABLE         (1 << 28)
+#define GEN6_SAMPLER_MIN_MAG_NOT_EQUAL          (1 << 27) /* Gen6 only */
+#define BRW_SAMPLER_BASE_MIPLEVEL_MASK          INTEL_MASK(26, 22)
+#define BRW_SAMPLER_BASE_MIPLEVEL_SHIFT         22
+#define BRW_SAMPLER_MIP_FILTER_MASK             INTEL_MASK(21, 20)
+#define BRW_SAMPLER_MIP_FILTER_SHIFT            20
+#define BRW_SAMPLER_MAG_FILTER_MASK             INTEL_MASK(19, 17)
+#define BRW_SAMPLER_MAG_FILTER_SHIFT            17
+#define BRW_SAMPLER_MIN_FILTER_MASK             INTEL_MASK(16, 14)
+#define BRW_SAMPLER_MIN_FILTER_SHIFT            14
+#define GEN4_SAMPLER_LOD_BIAS_MASK              INTEL_MASK(13, 3)
+#define GEN4_SAMPLER_LOD_BIAS_SHIFT             3
+#define GEN4_SAMPLER_SHADOW_FUNCTION_MASK       INTEL_MASK(2, 0)
+#define GEN4_SAMPLER_SHADOW_FUNCTION_SHIFT      0
+
+#define GEN7_SAMPLER_LOD_BIAS_MASK              INTEL_MASK(13, 1)
+#define GEN7_SAMPLER_LOD_BIAS_SHIFT             1
+#define GEN7_SAMPLER_EWA_ANISOTROPIC_ALGORIHTM  (1 << 0)
+
+/* SAMPLER_STATE DW1 */
+#define GEN4_SAMPLER_MIN_LOD_MASK               INTEL_MASK(31, 22)
+#define GEN4_SAMPLER_MIN_LOD_SHIFT              22
+#define GEN4_SAMPLER_MAX_LOD_MASK               INTEL_MASK(21, 12)
+#define GEN4_SAMPLER_MAX_LOD_SHIFT              12
+#define GEN4_SAMPLER_CUBE_CONTROL_OVERRIDE      (1 << 9)
+/* Wrap modes are in DW1 on Gen4-6 and DW3 on Gen7+ */
+#define BRW_SAMPLER_TCX_WRAP_MODE_MASK          INTEL_MASK(8, 6)
+#define BRW_SAMPLER_TCX_WRAP_MODE_SHIFT         6
+#define BRW_SAMPLER_TCY_WRAP_MODE_MASK          INTEL_MASK(5, 3)
+#define BRW_SAMPLER_TCY_WRAP_MODE_SHIFT         3
+#define BRW_SAMPLER_TCZ_WRAP_MODE_MASK          INTEL_MASK(2, 0)
+#define BRW_SAMPLER_TCZ_WRAP_MODE_SHIFT         0
+
+#define GEN7_SAMPLER_MIN_LOD_MASK               INTEL_MASK(31, 20)
+#define GEN7_SAMPLER_MIN_LOD_SHIFT              20
+#define GEN7_SAMPLER_MAX_LOD_MASK               INTEL_MASK(19, 8)
+#define GEN7_SAMPLER_MAX_LOD_SHIFT              8
+#define GEN7_SAMPLER_SHADOW_FUNCTION_MASK       INTEL_MASK(3, 1)
+#define GEN7_SAMPLER_SHADOW_FUNCTION_SHIFT      1
+#define GEN7_SAMPLER_CUBE_CONTROL_OVERRIDE      (1 << 0)
+
+/* SAMPLER_STATE DW2 - border color pointer */
+
+/* SAMPLER_STATE DW3 */
+#define BRW_SAMPLER_MAX_ANISOTROPY_MASK         INTEL_MASK(21, 19)
+#define BRW_SAMPLER_MAX_ANISOTROPY_SHIFT        19
+#define BRW_SAMPLER_ADDRESS_ROUNDING_MASK       INTEL_MASK(18, 13)
+#define BRW_SAMPLER_ADDRESS_ROUNDING_SHIFT      13
+#define GEN7_SAMPLER_NON_NORMALIZED_COORDINATES (1 << 10)
+/* Gen7+ wrap modes reuse the same BRW_SAMPLER_TC*_WRAP_MODE enums. */
+#define GEN6_SAMPLER_NON_NORMALIZED_COORDINATES (1 << 0)
+
 enum brw_wrap_mode {
    BRW_TEXCOORDMODE_WRAP         = 0,
    BRW_TEXCOORDMODE_MIRROR       = 1,