diff options
Diffstat (limited to 'mesalib/src/mesa/program/sampler.cpp')
-rw-r--r-- | mesalib/src/mesa/program/sampler.cpp | 278 |
1 files changed, 138 insertions, 140 deletions
diff --git a/mesalib/src/mesa/program/sampler.cpp b/mesalib/src/mesa/program/sampler.cpp index cd44467a3..12c4a40a2 100644 --- a/mesalib/src/mesa/program/sampler.cpp +++ b/mesalib/src/mesa/program/sampler.cpp @@ -1,140 +1,138 @@ -/*
- * Copyright (C) 2005-2007 Brian Paul All Rights Reserved.
- * Copyright (C) 2008 VMware, Inc. All Rights Reserved.
- * Copyright © 2010 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 <cstdio>
-#include "ir.h"
-#include "glsl_types.h"
-#include "ir_visitor.h"
-
-extern "C" {
-#include "main/compiler.h"
-#include "main/mtypes.h"
-#include "program/prog_parameter.h"
-}
-
-static void fail_link(struct gl_shader_program *prog, const char *fmt, ...) PRINTFLIKE(2, 3);
-
-static void fail_link(struct gl_shader_program *prog, const char *fmt, ...)
-{
- va_list args;
- va_start(args, fmt);
- prog->InfoLog = talloc_vasprintf_append(prog->InfoLog, fmt, args);
- va_end(args);
-
- prog->LinkStatus = GL_FALSE;
-}
-
-class get_sampler_name : public ir_hierarchical_visitor
-{
-public:
- get_sampler_name(ir_dereference *last,
- struct gl_shader_program *shader_program)
- {
- this->mem_ctx = talloc_new(NULL);
- this->shader_program = shader_program;
- this->name = NULL;
- this->offset = 0;
- this->last = last;
- }
-
- ~get_sampler_name()
- {
- talloc_free(this->mem_ctx);
- }
-
- virtual ir_visitor_status visit(ir_dereference_variable *ir)
- {
- this->name = ir->var->name;
- return visit_continue;
- }
-
- virtual ir_visitor_status visit_leave(ir_dereference_record *ir)
- {
- this->name = talloc_asprintf(mem_ctx, "%s.%s", name, ir->field);
- return visit_continue;
- }
-
- virtual ir_visitor_status visit_leave(ir_dereference_array *ir)
- {
- ir_constant *index = ir->array_index->as_constant();
- int i;
-
- if (index) {
- i = index->value.i[0];
- } else {
- /* GLSL 1.10 and 1.20 allowed variable sampler array indices,
- * while GLSL 1.30 requires that the array indices be
- * constant integer expressions. We don't expect any driver
- * to actually work with a really variable array index, so
- * all that would work would be an unrolled loop counter that ends
- * up being constant above.
- */
- shader_program->InfoLog =
- talloc_asprintf_append(shader_program->InfoLog,
- "warning: Variable sampler array index "
- "unsupported.\nThis feature of the language "
- "was removed in GLSL 1.20 and is unlikely "
- "to be supported for 1.10 in Mesa.\n");
- i = 0;
- }
- if (ir != last) {
- this->name = talloc_asprintf(mem_ctx, "%s[%d]", name, i);
- } else {
- offset = i;
- }
- return visit_continue;
- }
-
- struct gl_shader_program *shader_program;
- const char *name;
- void *mem_ctx;
- int offset;
- ir_dereference *last;
-};
-
-extern "C" {
-int
-_mesa_get_sampler_uniform_value(class ir_dereference *sampler,
- struct gl_shader_program *shader_program,
- const struct gl_program *prog)
-{
- get_sampler_name getname(sampler, shader_program);
-
- sampler->accept(&getname);
-
- GLint index = _mesa_lookup_parameter_index(prog->Parameters, -1,
- getname.name);
-
- if (index < 0) {
- fail_link(shader_program,
- "failed to find sampler named %s.\n", getname.name);
- return 0;
- }
-
- index += getname.offset;
-
- return prog->Parameters->ParameterValues[index][0];
-}
-}
+/* + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * Copyright © 2010 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 <cstdio> +#include "ir.h" +#include "glsl_types.h" +#include "ir_visitor.h" + +extern "C" { +#include "main/compiler.h" +#include "main/mtypes.h" +#include "program/prog_parameter.h" +} + +static void fail_link(struct gl_shader_program *prog, const char *fmt, ...) PRINTFLIKE(2, 3); + +static void fail_link(struct gl_shader_program *prog, const char *fmt, ...) +{ + va_list args; + va_start(args, fmt); + ralloc_vasprintf_append(&prog->InfoLog, fmt, args); + va_end(args); + + prog->LinkStatus = GL_FALSE; +} + +class get_sampler_name : public ir_hierarchical_visitor +{ +public: + get_sampler_name(ir_dereference *last, + struct gl_shader_program *shader_program) + { + this->mem_ctx = ralloc_context(NULL); + this->shader_program = shader_program; + this->name = NULL; + this->offset = 0; + this->last = last; + } + + ~get_sampler_name() + { + ralloc_free(this->mem_ctx); + } + + virtual ir_visitor_status visit(ir_dereference_variable *ir) + { + this->name = ir->var->name; + return visit_continue; + } + + virtual ir_visitor_status visit_leave(ir_dereference_record *ir) + { + this->name = ralloc_asprintf(mem_ctx, "%s.%s", name, ir->field); + return visit_continue; + } + + virtual ir_visitor_status visit_leave(ir_dereference_array *ir) + { + ir_constant *index = ir->array_index->as_constant(); + int i; + + if (index) { + i = index->value.i[0]; + } else { + /* GLSL 1.10 and 1.20 allowed variable sampler array indices, + * while GLSL 1.30 requires that the array indices be + * constant integer expressions. We don't expect any driver + * to actually work with a really variable array index, so + * all that would work would be an unrolled loop counter that ends + * up being constant above. + */ + ralloc_strcat(&shader_program->InfoLog, + "warning: Variable sampler array index unsupported.\n" + "This feature of the language was removed in GLSL 1.20 " + "and is unlikely to be supported for 1.10 in Mesa.\n"); + i = 0; + } + if (ir != last) { + this->name = ralloc_asprintf(mem_ctx, "%s[%d]", name, i); + } else { + offset = i; + } + return visit_continue; + } + + struct gl_shader_program *shader_program; + const char *name; + void *mem_ctx; + int offset; + ir_dereference *last; +}; + +extern "C" { +int +_mesa_get_sampler_uniform_value(class ir_dereference *sampler, + struct gl_shader_program *shader_program, + const struct gl_program *prog) +{ + get_sampler_name getname(sampler, shader_program); + + sampler->accept(&getname); + + GLint index = _mesa_lookup_parameter_index(prog->Parameters, -1, + getname.name); + + if (index < 0) { + fail_link(shader_program, + "failed to find sampler named %s.\n", getname.name); + return 0; + } + + index += getname.offset; + + return prog->Parameters->ParameterValues[index][0]; +} +} |