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authorKenneth Graunke <[email protected]>2014-07-26 12:58:20 -0700
committerKenneth Graunke <[email protected]>2014-08-02 05:16:40 -0700
commit05f0796eb68fe1be3e55b7c78c7660dccf44e0a1 (patch)
treed504f7755352a2bf1938b80626986b8809005616
parent7cdb0a30faf1c96bacf5cec2d64bb64d7c8ef4a8 (diff)
i965: Introduce a function to emit a SAMPLER_STATE structure.
This simply assembles all the SAMPLER_STATE fields into their proper bit locations. Making it work on all generations was easy enough; some of the fields are even in the same place. Not used by anything yet, but will be soon. I made it non-static so BLORP can use it too. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Topi Pohjolainen <[email protected]>
-rw-r--r--src/mesa/drivers/dri/i965/brw_sampler_state.c75
-rw-r--r--src/mesa/drivers/dri/i965/brw_state.h18
2 files changed, 93 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_sampler_state.c b/src/mesa/drivers/dri/i965/brw_sampler_state.c
index 5d9f85cc217..50d53432752 100644
--- a/src/mesa/drivers/dri/i965/brw_sampler_state.c
+++ b/src/mesa/drivers/dri/i965/brw_sampler_state.c
@@ -70,6 +70,81 @@ gen7_emit_sampler_state_pointers_xs(struct brw_context *brw,
ADVANCE_BATCH();
}
+/**
+ * Emit a SAMPLER_STATE structure, given all the fields.
+ */
+void
+brw_emit_sampler_state(struct brw_context *brw,
+ uint32_t *ss,
+ uint32_t batch_offset_for_sampler_state,
+ unsigned min_filter,
+ unsigned mag_filter,
+ unsigned mip_filter,
+ unsigned max_anisotropy,
+ unsigned address_rounding,
+ unsigned wrap_s,
+ unsigned wrap_t,
+ unsigned wrap_r,
+ unsigned min_lod,
+ unsigned max_lod,
+ int lod_bias,
+ unsigned base_level,
+ unsigned shadow_function,
+ bool non_normalized_coordinates,
+ uint32_t border_color_offset)
+{
+ ss[0] = BRW_SAMPLER_LOD_PRECLAMP_ENABLE |
+ SET_FIELD(base_level, BRW_SAMPLER_BASE_MIPLEVEL) |
+ SET_FIELD(mip_filter, BRW_SAMPLER_MIP_FILTER) |
+ SET_FIELD(mag_filter, BRW_SAMPLER_MAG_FILTER) |
+ SET_FIELD(min_filter, BRW_SAMPLER_MIN_FILTER);
+
+ ss[2] = border_color_offset;
+ if (brw->gen < 6) {
+ ss[2] += brw->batch.bo->offset64; /* reloc */
+ drm_intel_bo_emit_reloc(brw->batch.bo,
+ batch_offset_for_sampler_state + 8,
+ brw->batch.bo, border_color_offset,
+ I915_GEM_DOMAIN_SAMPLER, 0);
+ }
+
+ ss[3] = SET_FIELD(max_anisotropy, BRW_SAMPLER_MAX_ANISOTROPY) |
+ SET_FIELD(address_rounding, BRW_SAMPLER_ADDRESS_ROUNDING);
+
+ if (brw->gen >= 7) {
+ ss[0] |= SET_FIELD(lod_bias & 0x1fff, GEN7_SAMPLER_LOD_BIAS);
+
+ if (min_filter == BRW_MAPFILTER_ANISOTROPIC)
+ ss[0] |= GEN7_SAMPLER_EWA_ANISOTROPIC_ALGORIHTM;
+
+ ss[1] = SET_FIELD(min_lod, GEN7_SAMPLER_MIN_LOD) |
+ SET_FIELD(max_lod, GEN7_SAMPLER_MAX_LOD) |
+ SET_FIELD(shadow_function, GEN7_SAMPLER_SHADOW_FUNCTION);
+
+ ss[3] |= SET_FIELD(wrap_s, BRW_SAMPLER_TCX_WRAP_MODE) |
+ SET_FIELD(wrap_t, BRW_SAMPLER_TCY_WRAP_MODE) |
+ SET_FIELD(wrap_r, BRW_SAMPLER_TCZ_WRAP_MODE);
+
+ if (non_normalized_coordinates)
+ ss[3] |= GEN7_SAMPLER_NON_NORMALIZED_COORDINATES;
+ } else {
+ ss[0] |= SET_FIELD(lod_bias & 0x7ff, GEN4_SAMPLER_LOD_BIAS) |
+ SET_FIELD(shadow_function, GEN4_SAMPLER_SHADOW_FUNCTION);
+
+ if (brw->gen == 6 && min_filter != mag_filter)
+ ss[0] |= GEN6_SAMPLER_MIN_MAG_NOT_EQUAL;
+
+ ss[1] = SET_FIELD(min_lod, GEN4_SAMPLER_MIN_LOD) |
+ SET_FIELD(max_lod, GEN4_SAMPLER_MAX_LOD) |
+ SET_FIELD(wrap_s, BRW_SAMPLER_TCX_WRAP_MODE) |
+ SET_FIELD(wrap_t, BRW_SAMPLER_TCY_WRAP_MODE) |
+ SET_FIELD(wrap_r, BRW_SAMPLER_TCZ_WRAP_MODE);
+
+ if (brw->gen >= 6 && non_normalized_coordinates)
+ ss[3] |= GEN6_SAMPLER_NON_NORMALIZED_COORDINATES;
+ }
+}
+
uint32_t
translate_wrap_mode(struct brw_context *brw, GLenum wrap, bool using_nearest)
{
diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h
index 6b4092344d0..671c579555e 100644
--- a/src/mesa/drivers/dri/i965/brw_state.h
+++ b/src/mesa/drivers/dri/i965/brw_state.h
@@ -243,6 +243,24 @@ void gen7_upload_3dstate_so_decl_list(struct brw_context *brw,
void gen8_init_vtable_surface_functions(struct brw_context *brw);
/* brw_sampler_state.c */
+void brw_emit_sampler_state(struct brw_context *brw,
+ uint32_t *sampler_state,
+ uint32_t batch_offset_for_sampler_state,
+ unsigned min_filter,
+ unsigned mag_filter,
+ unsigned mip_filter,
+ unsigned max_anisotropy,
+ unsigned address_rounding,
+ unsigned wrap_s,
+ unsigned wrap_t,
+ unsigned wrap_r,
+ unsigned min_lod,
+ unsigned max_lod,
+ int lod_bias,
+ unsigned base_level,
+ unsigned shadow_function,
+ bool non_normalized_coordinates,
+ uint32_t border_color_offset);
uint32_t translate_wrap_mode(struct brw_context *brw,
GLenum wrap, bool using_nearest);
void upload_default_color(struct brw_context *brw,