From 05f0796eb68fe1be3e55b7c78c7660dccf44e0a1 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Sat, 26 Jul 2014 12:58:20 -0700 Subject: [PATCH] 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 Reviewed-by: Topi Pohjolainen --- src/mesa/drivers/dri/i965/brw_sampler_state.c | 75 +++++++++++++++++++ src/mesa/drivers/dri/i965/brw_state.h | 18 +++++ 2 files changed, 93 insertions(+) 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, -- 2.30.2