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glsl: Add ir_variable fields for explicit bindings.

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These are not used yet, but they exist and are copied appropriately.

v2: Add an explicit "int binding" variable rather than reusing
    constant_value, as suggested by Paul Berry.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This commit is contained in:
Kenneth Graunke 2013-07-18 15:10:49 -07:00
parent 5e5e12040b
commit 4da1504c0f
2 changed files with 17 additions and 0 deletions
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15
src/glsl/ir.h
View file

@ -470,6 +470,14 @@ public:
unsigned explicit_location:1;
unsigned explicit_index:1;
/**
* Was an initial binding explicitly set in the shader?
*
* If so, constant_value contains an integer ir_constant representing the
* initial binding point.
*/
unsigned explicit_binding:1;
/**
* Does this variable have an initializer?
*
@ -527,6 +535,13 @@ public:
*/
int index;
/**
* Initial binding point for a sampler or UBO.
*
* For array types, this represents the binding point for the first element.
*/
int binding;
/**
* Built-in state that backs this uniform
*

2
src/glsl/ir_clone.cpp
View file

@ -50,11 +50,13 @@ ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
var->interpolation = this->interpolation;
var->location = this->location;
var->index = this->index;
var->binding = this->binding;
var->warn_extension = this->warn_extension;
var->origin_upper_left = this->origin_upper_left;
var->pixel_center_integer = this->pixel_center_integer;
var->explicit_location = this->explicit_location;
var->explicit_index = this->explicit_index;
var->explicit_binding = this->explicit_binding;
var->has_initializer = this->has_initializer;
var->depth_layout = this->depth_layout;