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glsl: Set .flat for gl_FrontFacing 

It is a boolean.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3237>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3237>
This commit is contained in:
Alyssa Rosenzweig 2019-12-30 11:40:29 -05:00
parent 824bd0830e
commit ddc5a371b3
1 changed files with 7 additions and 4 deletions
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11
src/compiler/glsl/builtin_variables.cpp
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@ -1252,10 +1252,13 @@ builtin_variable_generator::generate_fs_special_vars()
add_input(VARYING_SLOT_POS, vec4_t, frag_coord_precision, "gl_FragCoord");
}
if (this->state->ctx->Const.GLSLFrontFacingIsSysVal)
add_system_value(SYSTEM_VALUE_FRONT_FACE, bool_t, "gl_FrontFacing");
else
add_input(VARYING_SLOT_FACE, bool_t, "gl_FrontFacing");
if (this->state->ctx->Const.GLSLFrontFacingIsSysVal) {
var = add_system_value(SYSTEM_VALUE_FRONT_FACE, bool_t, "gl_FrontFacing");
var->data.interpolation = INTERP_MODE_FLAT;
} else {
var = add_input(VARYING_SLOT_FACE, bool_t, "gl_FrontFacing");
var->data.interpolation = INTERP_MODE_FLAT;
}
if (state->is_version(120, 100)) {
if (this->state->ctx->Const.GLSLPointCoordIsSysVal)