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glsl/linker: Pass absolute location to add_shader_variable()

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This lets us pass in the absolution location of a variable instead of
computing it in add_shader_variable() based on variable location and
bias. This is in preparation for recursing into struct variables.

Signed-off-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kristian Høgsberg Kristensen 2016-04-11 13:03:12 -07:00
parent 8ab6aae4dc
commit 09f0121593
1 changed files with 10 additions and 7 deletions
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17
src/compiler/glsl/linker.cpp
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@ -3519,7 +3519,7 @@ build_stageref(struct gl_shader_program *shProg, const char *name,
static gl_shader_variable *
create_shader_variable(struct gl_shader_program *shProg,
const ir_variable *in, bool use_implicit_location,
int location_bias)
int location)
{
gl_shader_variable *out = ralloc(shProg, struct gl_shader_variable);
if (!out)
@ -3557,7 +3557,7 @@ create_shader_variable(struct gl_shader_program *shProg,
!(in->data.explicit_location || use_implicit_location)) {
out->location = -1;
} else {
out->location = in->data.location - location_bias;
out->location = location;
}
out->type = in->type;
@ -3571,10 +3571,10 @@ create_shader_variable(struct gl_shader_program *shProg,
static bool
add_shader_variable(struct gl_shader_program *shProg, unsigned stage_mask,
GLenum programInterface, ir_variable *var,
bool use_implicit_location, int location_bias)
bool use_implicit_location, int location)
{
gl_shader_variable *sha_v =
create_shader_variable(shProg, var, use_implicit_location, location_bias);
create_shader_variable(shProg, var, use_implicit_location, location);
if (!sha_v)
return false;
@ -3630,7 +3630,8 @@ add_interface_variables(struct gl_shader_program *shProg,
(stage == MESA_SHADER_FRAGMENT && var->data.mode == ir_var_shader_out);
if (!add_shader_variable(shProg, 1 << stage, programInterface,
var, vs_input_or_fs_output, loc_bias))
var, vs_input_or_fs_output,
var->data.location - loc_bias))
return false;
}
return true;
@ -3663,7 +3664,8 @@ add_packed_varyings(struct gl_shader_program *shProg, int stage, GLenum type)
const int stage_mask =
build_stageref(shProg, var->name, var->data.mode);
if (!add_shader_variable(shProg, stage_mask,
iface, var, false, VARYING_SLOT_VAR0))
iface, var, false,
var->data.location - VARYING_SLOT_VAR0))
return false;
}
}
@ -3686,7 +3688,8 @@ add_fragdata_arrays(struct gl_shader_program *shProg)
if (!add_shader_variable(shProg,
1 << MESA_SHADER_FRAGMENT,
GL_PROGRAM_OUTPUT, var, true, FRAG_RESULT_DATA0))
GL_PROGRAM_OUTPUT, var, true,
var->data.location - FRAG_RESULT_DATA0))
return false;
}
}