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glsl/nir: Add a shared helper for building float64 shaders

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Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand
2019-03-03 10:00:14 -06:00
committed by Jason Ekstrand
parent 8993e0973f
commit 82d9a37a59
7 changed files with 70 additions and 99 deletions
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41
src/compiler/glsl/glsl_to_nir.cpp
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@@ -25,14 +25,18 @@
*
*/
#include "float64_glsl.h"
#include "glsl_to_nir.h"
#include "ir_visitor.h"
#include "ir_hierarchical_visitor.h"
#include "ir.h"
#include "program.h"
#include "compiler/nir/nir_control_flow.h"
#include "compiler/nir/nir_builder.h"
#include "main/errors.h"
#include "main/imports.h"
#include "main/mtypes.h"
#include "main/shaderobj.h"
#include "util/u_math.h"
/*
@@ -2324,3 +2328,40 @@ nir_visitor::visit(ir_barrier *)
nir_intrinsic_instr_create(this->shader, nir_intrinsic_barrier);
nir_builder_instr_insert(&b, &instr->instr);
}
nir_shader *
glsl_float64_funcs_to_nir(struct gl_context *ctx,
const nir_shader_compiler_options *options)
{
/* We pretend it's a vertex shader. Ultimately, the stage shouldn't
* matter because we're not optimizing anything here.
*/
struct gl_shader *sh = _mesa_new_shader(-1, MESA_SHADER_VERTEX);
sh->Source = float64_source;
sh->CompileStatus = COMPILE_FAILURE;
_mesa_glsl_compile_shader(ctx, sh, false, false, true);
if (!sh->CompileStatus) {
if (sh->InfoLog) {
_mesa_problem(ctx,
"fp64 software impl compile failed:\n%s\nsource:\n%s\n",
sh->InfoLog, float64_source);
}
return NULL;
}
nir_shader *nir = nir_shader_create(NULL, MESA_SHADER_VERTEX, options, NULL);
nir_visitor v1(nir);
nir_function_visitor v2(&v1);
v2.run(sh->ir);
visit_exec_list(sh->ir, &v1);
/* _mesa_delete_shader will try to free sh->Source but it's static const */
sh->Source = NULL;
_mesa_delete_shader(ctx, sh);
nir_validate_shader(nir, "float64_funcs_to_nir");
return nir;
}