From: Dave Airlie Date: Mon, 10 Feb 2014 23:41:44 +0000 (+1000) Subject: glsl/i965: move lower_offset_array up to GLSL compiler level. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=122c3b9486d3dbf8cb6b796c9a25f43817f006d3;p=mesa.git glsl/i965: move lower_offset_array up to GLSL compiler level. This lowering pass will be useful for gallium drivers as well, in order to support the GL TG4 oddity that is textureGatherOffsets. Reviewed-by: Chris Forbes Signed-off-by: Dave Airlie --- diff --git a/src/glsl/Makefile.sources b/src/glsl/Makefile.sources index e69c1ac612b..5945590a57e 100644 --- a/src/glsl/Makefile.sources +++ b/src/glsl/Makefile.sources @@ -67,6 +67,7 @@ LIBGLSL_FILES = \ $(GLSL_SRCDIR)/lower_jumps.cpp \ $(GLSL_SRCDIR)/lower_mat_op_to_vec.cpp \ $(GLSL_SRCDIR)/lower_noise.cpp \ + $(GLSL_SRCDIR)/lower_offset_array.cpp \ $(GLSL_SRCDIR)/lower_packed_varyings.cpp \ $(GLSL_SRCDIR)/lower_named_interface_blocks.cpp \ $(GLSL_SRCDIR)/lower_packing_builtins.cpp \ diff --git a/src/glsl/ir_optimization.h b/src/glsl/ir_optimization.h index 055d65547ba..24d019b718e 100644 --- a/src/glsl/ir_optimization.h +++ b/src/glsl/ir_optimization.h @@ -120,6 +120,7 @@ bool lower_vector_insert(exec_list *instructions, bool lower_nonconstant_index); void lower_named_interface_blocks(void *mem_ctx, gl_shader *shader); bool optimize_redundant_jumps(exec_list *instructions); bool optimize_split_arrays(exec_list *instructions, bool linked); +bool lower_offset_arrays(exec_list *instructions); ir_rvalue * compare_index_block(exec_list *instructions, ir_variable *index, diff --git a/src/glsl/lower_offset_array.cpp b/src/glsl/lower_offset_array.cpp new file mode 100644 index 00000000000..0c235eda395 --- /dev/null +++ b/src/glsl/lower_offset_array.cpp @@ -0,0 +1,90 @@ +/* + * Copyright © 2013 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. + */ + +/** + * \file brw_lower_offset_array.cpp + * + * IR lower pass to decompose ir_texture ir_tg4 with an array of offsets + * into four ir_tg4s with a single ivec2 offset, select the .w component of each, + * and return those four values packed into a gvec4. + * + * \author Chris Forbes + */ + +#include "glsl_types.h" +#include "ir.h" +#include "ir_builder.h" +#include "ir_optimization.h" +#include "ir_rvalue_visitor.h" + +using namespace ir_builder; + +class brw_lower_offset_array_visitor : public ir_rvalue_visitor { +public: + brw_lower_offset_array_visitor() + { + progress = false; + } + + void handle_rvalue(ir_rvalue **rv); + + bool progress; +}; + +void +brw_lower_offset_array_visitor::handle_rvalue(ir_rvalue **rv) +{ + if (*rv == NULL || (*rv)->ir_type != ir_type_texture) + return; + + ir_texture *ir = (ir_texture *) *rv; + if (ir->op != ir_tg4 || !ir->offset || !ir->offset->type->is_array()) + return; + + void *mem_ctx = ralloc_parent(ir); + + ir_variable *var = new (mem_ctx) ir_variable(ir->type, "result", ir_var_auto); + base_ir->insert_before(var); + + for (int i = 0; i < 4; i++) { + ir_texture *tex = ir->clone(mem_ctx, NULL); + tex->offset = new (mem_ctx) ir_dereference_array(tex->offset, + new (mem_ctx) ir_constant(i)); + + base_ir->insert_before(assign(var, swizzle_w(tex), 1 << i)); + } + + *rv = new (mem_ctx) ir_dereference_variable(var); + + progress = true; +} + +bool +lower_offset_arrays(exec_list *instructions) +{ + brw_lower_offset_array_visitor v; + + visit_list_elements(&v, instructions); + + return v.progress; +} diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources index dc30eb371e9..1649369e9e5 100644 --- a/src/mesa/drivers/dri/i965/Makefile.sources +++ b/src/mesa/drivers/dri/i965/Makefile.sources @@ -73,7 +73,6 @@ i965_FILES = \ brw_gs_surface_state.c \ brw_interpolation_map.c \ brw_lower_texture_gradients.cpp \ - brw_lower_offset_array.cpp \ brw_lower_unnormalized_offset.cpp \ brw_misc_state.c \ brw_object_purgeable.c \ diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index 854583e4ba0..dbb30f221aa 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -1843,7 +1843,6 @@ brw_program_reloc(struct brw_context *brw, uint32_t state_offset, bool brw_do_cubemap_normalize(struct exec_list *instructions); bool brw_lower_texture_gradients(struct brw_context *brw, struct exec_list *instructions); -bool brw_do_lower_offset_arrays(struct exec_list *instructions); bool brw_do_lower_unnormalized_offset(struct exec_list *instructions); struct opcode_desc { diff --git a/src/mesa/drivers/dri/i965/brw_lower_offset_array.cpp b/src/mesa/drivers/dri/i965/brw_lower_offset_array.cpp deleted file mode 100644 index 91c002ed568..00000000000 --- a/src/mesa/drivers/dri/i965/brw_lower_offset_array.cpp +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Copyright © 2013 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. - */ - -/** - * \file brw_lower_offset_array.cpp - * - * IR lower pass to decompose ir_texture ir_tg4 with an array of offsets - * into four ir_tg4s with a single ivec2 offset, select the .w component of each, - * and return those four values packed into a gvec4. - * - * \author Chris Forbes - */ - -#include "glsl/glsl_types.h" -#include "glsl/ir.h" -#include "glsl/ir_builder.h" -#include "glsl/ir_rvalue_visitor.h" - -using namespace ir_builder; - -class brw_lower_offset_array_visitor : public ir_rvalue_visitor { -public: - brw_lower_offset_array_visitor() - { - progress = false; - } - - void handle_rvalue(ir_rvalue **rv); - - bool progress; -}; - -void -brw_lower_offset_array_visitor::handle_rvalue(ir_rvalue **rv) -{ - if (*rv == NULL || (*rv)->ir_type != ir_type_texture) - return; - - ir_texture *ir = (ir_texture *) *rv; - if (ir->op != ir_tg4 || !ir->offset || !ir->offset->type->is_array()) - return; - - void *mem_ctx = ralloc_parent(ir); - - ir_variable *var = new (mem_ctx) ir_variable(ir->type, "result", ir_var_auto); - base_ir->insert_before(var); - - for (int i = 0; i < 4; i++) { - ir_texture *tex = ir->clone(mem_ctx, NULL); - tex->offset = new (mem_ctx) ir_dereference_array(tex->offset, - new (mem_ctx) ir_constant(i)); - - base_ir->insert_before(assign(var, swizzle_w(tex), 1 << i)); - } - - *rv = new (mem_ctx) ir_dereference_variable(var); - - progress = true; -} - -extern "C" { - -bool -brw_do_lower_offset_arrays(exec_list *instructions) -{ - brw_lower_offset_array_visitor v; - - visit_list_elements(&v, instructions); - - return v.progress; -} - -} diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp index 643c140aa7c..fce2ec75961 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.cpp +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp @@ -167,7 +167,7 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg) do_vec_index_to_cond_assign(shader->base.ir); lower_vector_insert(shader->base.ir, true); brw_do_cubemap_normalize(shader->base.ir); - brw_do_lower_offset_arrays(shader->base.ir); + lower_offset_arrays(shader->base.ir); brw_do_lower_unnormalized_offset(shader->base.ir); lower_noise(shader->base.ir); lower_quadop_vector(shader->base.ir, false);