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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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21 * DEALINGS IN THE SOFTWARE.
24 #include "main/core.h"
27 #include "ir_uniform.h"
28 #include "glsl_symbol_table.h"
29 #include "program/hash_table.h"
31 /* These functions are put in a "private" namespace instead of being marked
32 * static so that the unit tests can access them. See
33 * http://code.google.com/p/googletest/wiki/AdvancedGuide#Testing_Private_Code
38 get_storage(gl_uniform_storage
*storage
, unsigned num_storage
,
41 for (unsigned int i
= 0; i
< num_storage
; i
++) {
42 if (strcmp(name
, storage
[i
].name
) == 0)
50 copy_constant_to_storage(union gl_constant_value
*storage
,
51 const ir_constant
*val
,
52 const enum glsl_base_type base_type
,
53 const unsigned int elements
)
55 for (unsigned int i
= 0; i
< elements
; i
++) {
58 storage
[i
].u
= val
->value
.u
[i
];
61 case GLSL_TYPE_SAMPLER
:
62 storage
[i
].i
= val
->value
.i
[i
];
65 storage
[i
].f
= val
->value
.f
[i
];
68 storage
[i
].b
= int(val
->value
.b
[i
]);
71 case GLSL_TYPE_STRUCT
:
74 /* All other types should have already been filtered by other
75 * paths in the caller.
77 assert(!"Should not get here.");
84 set_uniform_initializer(void *mem_ctx
, gl_shader_program
*prog
,
85 const char *name
, const glsl_type
*type
,
88 if (type
->is_record()) {
89 ir_constant
*field_constant
;
91 field_constant
= (ir_constant
*)val
->components
.get_head();
93 for (unsigned int i
= 0; i
< type
->length
; i
++) {
94 const glsl_type
*field_type
= type
->fields
.structure
[i
].type
;
95 const char *field_name
= ralloc_asprintf(mem_ctx
, "%s.%s", name
,
96 type
->fields
.structure
[i
].name
);
97 set_uniform_initializer(mem_ctx
, prog
, field_name
,
98 field_type
, field_constant
);
99 field_constant
= (ir_constant
*)field_constant
->next
;
102 } else if (type
->is_array() && type
->fields
.array
->is_record()) {
103 const glsl_type
*const element_type
= type
->fields
.array
;
105 for (unsigned int i
= 0; i
< type
->length
; i
++) {
106 const char *element_name
= ralloc_asprintf(mem_ctx
, "%s[%d]", name
, i
);
108 set_uniform_initializer(mem_ctx
, prog
, element_name
,
109 element_type
, val
->array_elements
[i
]);
114 struct gl_uniform_storage
*const storage
=
115 get_storage(prog
->UniformStorage
,
116 prog
->NumUserUniformStorage
,
118 if (storage
== NULL
) {
119 assert(storage
!= NULL
);
123 if (val
->type
->is_array()) {
124 const enum glsl_base_type base_type
=
125 val
->array_elements
[0]->type
->base_type
;
126 const unsigned int elements
= val
->array_elements
[0]->type
->components();
127 unsigned int idx
= 0;
129 assert(val
->type
->length
>= storage
->array_elements
);
130 for (unsigned int i
= 0; i
< storage
->array_elements
; i
++) {
131 copy_constant_to_storage(& storage
->storage
[idx
],
132 val
->array_elements
[i
],
139 if (base_type
== GLSL_TYPE_SAMPLER
) {
140 for (unsigned int i
= 0; i
< storage
->array_elements
; i
++) {
141 prog
->SamplerUnits
[storage
->sampler
+ i
] = storage
->storage
[i
].i
;
145 copy_constant_to_storage(storage
->storage
,
147 val
->type
->base_type
,
148 val
->type
->components());
150 if (storage
->type
->is_sampler())
151 prog
->SamplerUnits
[storage
->sampler
] = storage
->storage
[0].i
;
154 storage
->initialized
= true;
159 link_set_uniform_initializers(struct gl_shader_program
*prog
)
161 void *mem_ctx
= NULL
;
163 for (unsigned int i
= 0; i
< MESA_SHADER_TYPES
; i
++) {
164 struct gl_shader
*shader
= prog
->_LinkedShaders
[i
];
169 foreach_list(node
, shader
->ir
) {
170 ir_variable
*const var
= ((ir_instruction
*) node
)->as_variable();
172 if (!var
|| var
->mode
!= ir_var_uniform
|| !var
->constant_value
)
176 mem_ctx
= ralloc_context(NULL
);
178 linker::set_uniform_initializer(mem_ctx
, prog
, var
->name
,
179 var
->type
, var
->constant_value
);
183 ralloc_free(mem_ctx
);