diff options
Diffstat (limited to 'src/broadcom/compiler')
| -rw-r--r-- | src/broadcom/compiler/meson.build | 1 | ||||
| -rw-r--r-- | src/broadcom/compiler/v3d_compiler.h | 2 | ||||
| -rw-r--r-- | src/broadcom/compiler/v3d_nir_lower_txf_ms.c | 93 | ||||
| -rw-r--r-- | src/broadcom/compiler/vir.c | 1 |
4 files changed, 95 insertions, 2 deletions
diff --git a/src/broadcom/compiler/meson.build b/src/broadcom/compiler/meson.build index 3c6281956f1..fd4d05fdbb7 100644 --- a/src/broadcom/compiler/meson.build +++ b/src/broadcom/compiler/meson.build @@ -32,6 +32,7 @@ libbroadcom_compiler_files = files( 'qpu_validate.c', 'v3d_compiler.h', 'v3d_nir_lower_io.c', + 'v3d_nir_lower_txf_ms.c', ) libbroadcom_compiler = static_library( diff --git a/src/broadcom/compiler/v3d_compiler.h b/src/broadcom/compiler/v3d_compiler.h index 56a9d143e32..1111102e6b1 100644 --- a/src/broadcom/compiler/v3d_compiler.h +++ b/src/broadcom/compiler/v3d_compiler.h @@ -229,8 +229,6 @@ enum quniform_contents { QUNIFORM_TEXTURE_ARRAY_SIZE, QUNIFORM_TEXTURE_LEVELS, - QUNIFORM_TEXTURE_MSAA_ADDR, - QUNIFORM_UBO_ADDR, QUNIFORM_TEXRECT_SCALE_X, diff --git a/src/broadcom/compiler/v3d_nir_lower_txf_ms.c b/src/broadcom/compiler/v3d_nir_lower_txf_ms.c new file mode 100644 index 00000000000..ffaee0d76cd --- /dev/null +++ b/src/broadcom/compiler/v3d_nir_lower_txf_ms.c @@ -0,0 +1,93 @@ +/* + * Copyright © 2015 Broadcom + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include "v3d_compiler.h" +#include "compiler/nir/nir_builder.h" + +/** @file v3d_nir_lower_txf_ms.c + * + * V3D's MSAA surfaces are laid out in UIF textures where each pixel is a 2x2 + * quad in the texture. This pass lowers the txf_ms with a ms_index source to + * a plain txf with the sample_index pulling out the correct texel from the + * 2x2 quad. + */ + +#define V3D_MAX_SAMPLES 4 + +static void +vc4_nir_lower_txf_ms_instr(struct v3d_compile *c, nir_builder *b, + nir_tex_instr *instr) +{ + if (instr->op != nir_texop_txf_ms) + return; + + b->cursor = nir_before_instr(&instr->instr); + + int coord_index = nir_tex_instr_src_index(instr, nir_tex_src_coord); + int sample_index = nir_tex_instr_src_index(instr, nir_tex_src_ms_index); + nir_ssa_def *coord = instr->src[coord_index].src.ssa; + nir_ssa_def *sample = instr->src[sample_index].src.ssa; + + nir_ssa_def *one = nir_imm_int(b, 1); + coord = nir_ishl(b, coord, nir_imm_int(b, 1)); + coord = nir_vec2(b, + nir_iadd(b, + nir_channel(b, coord, 0), + nir_iand(b, sample, one)), + nir_iadd(b, + nir_channel(b, coord, 1), + nir_iand(b, nir_ushr(b, sample, one), one))); + + nir_instr_rewrite_src(&instr->instr, + &instr->src[nir_tex_src_coord].src, + nir_src_for_ssa(coord)); + nir_tex_instr_remove_src(instr, sample_index); + instr->op = nir_texop_txf; + instr->sampler_dim = GLSL_SAMPLER_DIM_2D; +} + +void +v3d_nir_lower_txf_ms(nir_shader *s, struct v3d_compile *c) +{ + nir_foreach_function(function, s) { + if (!function->impl) + continue; + + nir_builder b; + nir_builder_init(&b, function->impl); + + nir_foreach_block(block, function->impl) { + nir_foreach_instr_safe(instr, block) { + if (instr->type != nir_instr_type_tex) + continue; + + vc4_nir_lower_txf_ms_instr(c, &b, + nir_instr_as_tex(instr)); + } + } + + nir_metadata_preserve(function->impl, + nir_metadata_block_index | + nir_metadata_dominance); + } +} diff --git a/src/broadcom/compiler/vir.c b/src/broadcom/compiler/vir.c index d9201e68dc5..e7c050923c7 100644 --- a/src/broadcom/compiler/vir.c +++ b/src/broadcom/compiler/vir.c @@ -569,6 +569,7 @@ static void v3d_lower_nir_late(struct v3d_compile *c) { NIR_PASS_V(c->s, v3d_nir_lower_io, c); + NIR_PASS_V(c->s, v3d_nir_lower_txf_ms, c); NIR_PASS_V(c->s, nir_lower_idiv); } |