[Mesa-dev] [PATCH v4 076/129] nir/lower_samplers: remove legacy version

Jason Ekstrand jason at jlekstrand.net
Fri Jun 1 05:04:06 UTC 2018


From: Rob Clark <robdclark at gmail.com>

Signed-off-by: Rob Clark <robdclark at gmail.com>
---
 src/compiler/Makefile.sources                    |   1 -
 src/compiler/glsl/gl_nir.h                       |   2 -
 src/compiler/glsl/gl_nir_lower_samplers_legacy.c | 163 -----------------------
 src/compiler/glsl/meson.build                    |   1 -
 src/gallium/drivers/freedreno/ir3/ir3_cmdline.c  |   2 +-
 5 files changed, 1 insertion(+), 168 deletions(-)
 delete mode 100644 src/compiler/glsl/gl_nir_lower_samplers_legacy.c

diff --git a/src/compiler/Makefile.sources b/src/compiler/Makefile.sources
index 971afdf..57a3dae 100644
--- a/src/compiler/Makefile.sources
+++ b/src/compiler/Makefile.sources
@@ -27,7 +27,6 @@ LIBGLSL_FILES = \
 	glsl/generate_ir.cpp \
 	glsl/gl_nir_lower_atomics.c \
 	glsl/gl_nir_lower_samplers.c \
-	glsl/gl_nir_lower_samplers_legacy.c \
 	glsl/gl_nir_lower_samplers_as_deref.c \
 	glsl/gl_nir.h \
 	glsl/glsl_parser_extras.cpp \
diff --git a/src/compiler/glsl/gl_nir.h b/src/compiler/glsl/gl_nir.h
index 17cc5da..59d5f65 100644
--- a/src/compiler/glsl/gl_nir.h
+++ b/src/compiler/glsl/gl_nir.h
@@ -37,8 +37,6 @@ bool gl_nir_lower_atomics(nir_shader *shader,
 
 bool gl_nir_lower_samplers(nir_shader *shader,
                            const struct gl_shader_program *shader_program);
-bool gl_nir_lower_samplers_legacy(nir_shader *shader,
-                           const struct gl_shader_program *shader_program);
 bool gl_nir_lower_samplers_as_deref(nir_shader *shader,
                                     const struct gl_shader_program *shader_program);
 
diff --git a/src/compiler/glsl/gl_nir_lower_samplers_legacy.c b/src/compiler/glsl/gl_nir_lower_samplers_legacy.c
deleted file mode 100644
index d213b9f..0000000
--- a/src/compiler/glsl/gl_nir_lower_samplers_legacy.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * Copyright (C) 2005-2007  Brian Paul   All Rights Reserved.
- * Copyright (C) 2008  VMware, Inc.   All Rights Reserved.
- * Copyright © 2014 Intel Corporation
- *
- * 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 "compiler/nir/nir.h"
-#include "compiler/nir/nir_builder.h"
-#include "gl_nir.h"
-#include "ir_uniform.h"
-
-#include "main/compiler.h"
-#include "main/mtypes.h"
-
-/* Calculate the sampler index based on array indicies and also
- * calculate the base uniform location for struct members.
- */
-static void
-calc_sampler_offsets(nir_deref *tail, nir_tex_instr *instr,
-                     unsigned *array_elements, nir_ssa_def **indirect,
-                     nir_builder *b, unsigned *location)
-{
-   if (tail->child == NULL)
-      return;
-
-   switch (tail->child->deref_type) {
-   case nir_deref_type_array: {
-      nir_deref_array *deref_array = nir_deref_as_array(tail->child);
-
-      assert(deref_array->deref_array_type != nir_deref_array_type_wildcard);
-
-      calc_sampler_offsets(tail->child, instr, array_elements,
-                           indirect, b, location);
-      instr->texture_index += deref_array->base_offset * *array_elements;
-
-      if (deref_array->deref_array_type == nir_deref_array_type_indirect) {
-         nir_ssa_def *mul =
-            nir_imul(b, nir_imm_int(b, *array_elements),
-                     nir_ssa_for_src(b, deref_array->indirect, 1));
-
-         nir_instr_rewrite_src(&instr->instr, &deref_array->indirect,
-                               NIR_SRC_INIT);
-
-         if (*indirect) {
-            *indirect = nir_iadd(b, *indirect, mul);
-         } else {
-            *indirect = mul;
-         }
-      }
-
-      *array_elements *= glsl_get_length(tail->type);
-       break;
-   }
-
-   case nir_deref_type_struct: {
-      nir_deref_struct *deref_struct = nir_deref_as_struct(tail->child);
-      *location += glsl_get_record_location_offset(tail->type, deref_struct->index);
-      calc_sampler_offsets(tail->child, instr, array_elements,
-                           indirect, b, location);
-      break;
-   }
-
-   default:
-      unreachable("Invalid deref type");
-      break;
-   }
-}
-
-static bool
-lower_sampler(nir_tex_instr *instr, const struct gl_shader_program *shader_program,
-              gl_shader_stage stage, nir_builder *b)
-{
-   if (instr->texture == NULL)
-      return false;
-
-   instr->texture_index = 0;
-   unsigned location = instr->texture->var->data.location;
-   unsigned array_elements = 1;
-   nir_ssa_def *indirect = NULL;
-
-   b->cursor = nir_before_instr(&instr->instr);
-   calc_sampler_offsets(&instr->texture->deref, instr, &array_elements,
-                        &indirect, b, &location);
-
-   if (indirect) {
-      assert(array_elements >= 1);
-      indirect = nir_umin(b, indirect, nir_imm_int(b, array_elements - 1));
-
-      nir_tex_instr_add_src(instr, nir_tex_src_texture_offset,
-                            nir_src_for_ssa(indirect));
-      nir_tex_instr_add_src(instr, nir_tex_src_sampler_offset,
-                            nir_src_for_ssa(indirect));
-
-      instr->texture_array_size = array_elements;
-   }
-
-   assert(location < shader_program->data->NumUniformStorage &&
-          shader_program->data->UniformStorage[location].opaque[stage].active);
-
-   instr->texture_index +=
-      shader_program->data->UniformStorage[location].opaque[stage].index;
-
-   instr->sampler_index = instr->texture_index;
-
-   instr->texture = NULL;
-
-   return true;
-}
-
-static bool
-lower_impl(nir_function_impl *impl, const struct gl_shader_program *shader_program,
-           gl_shader_stage stage)
-{
-   nir_builder b;
-   nir_builder_init(&b, impl);
-   bool progress = false;
-
-   nir_foreach_block(block, impl) {
-      nir_foreach_instr(instr, block) {
-         if (instr->type == nir_instr_type_tex)
-            progress |= lower_sampler(nir_instr_as_tex(instr),
-                                      shader_program, stage, &b);
-      }
-   }
-
-   return progress;
-}
-
-bool
-gl_nir_lower_samplers_legacy(nir_shader *shader,
-                      const struct gl_shader_program *shader_program)
-{
-   bool progress = false;
-
-   nir_assert_lowered_derefs(shader, nir_lower_texture_derefs);
-
-   nir_foreach_function(function, shader) {
-      if (function->impl)
-         progress |= lower_impl(function->impl, shader_program,
-                                shader->info.stage);
-   }
-
-   return progress;
-}
diff --git a/src/compiler/glsl/meson.build b/src/compiler/glsl/meson.build
index 68f568c..055a847 100644
--- a/src/compiler/glsl/meson.build
+++ b/src/compiler/glsl/meson.build
@@ -68,7 +68,6 @@ files_libglsl = files(
   'generate_ir.cpp',
   'gl_nir_lower_atomics.c',
   'gl_nir_lower_samplers.c',
-  'gl_nir_lower_samplers_legacy.c',
   'gl_nir_lower_samplers_as_deref.c',
   'gl_nir.h',
   'glsl_parser_extras.cpp',
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c b/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
index 1fa1a72..ab2fbf6 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
@@ -164,7 +164,7 @@ load_glsl(unsigned num_files, char* const* files, gl_shader_stage stage)
 
 	NIR_PASS_V(nir, nir_lower_system_values);
 	NIR_PASS_V(nir, nir_lower_io, nir_var_all, ir3_glsl_type_size, 0);
-	NIR_PASS_V(nir, gl_nir_lower_samplers_legacy, prog);
+	NIR_PASS_V(nir, gl_nir_lower_samplers, prog);
 
 	return nir;
 }
-- 
2.5.0.400.gff86faf



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