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glsl: Populate gl_fragment_program::IsSample bitfield

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Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
This commit is contained in:
Chris Forbes 2013-11-29 21:30:58 +13:00
parent 6429cc05ca
commit 2625a34bfc
1 changed files with 4 additions and 1 deletions
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5
src/glsl/ir_set_program_inouts.cpp
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@ -27,7 +27,7 @@
* Sets the InputsRead and OutputsWritten of Mesa programs.
*
* Additionally, for fragment shaders, sets the InterpQualifier array, the
* IsCentroid bitfield, and the UsesDFdy flag.
* IsCentroid and IsSample bitfields, and the UsesDFdy flag.
*
* Mesa programs (gl_program, not gl_shader_program) have a set of
* flags indicating which varyings are read and written. Computing
@ -102,6 +102,8 @@ mark(struct gl_program *prog, ir_variable *var, int offset, int len,
(glsl_interp_qualifier) var->interpolation;
if (var->centroid)
fprog->IsCentroid |= bitfield;
if (var->sample)
fprog->IsSample |= bitfield;
}
} else if (var->mode == ir_var_system_value) {
prog->SystemValuesRead |= bitfield;
@ -341,6 +343,7 @@ do_set_program_inouts(exec_list *instructions, struct gl_program *prog,
gl_fragment_program *fprog = (gl_fragment_program *) prog;
memset(fprog->InterpQualifier, 0, sizeof(fprog->InterpQualifier));
fprog->IsCentroid = 0;
fprog->IsSample = 0;
fprog->UsesDFdy = false;
fprog->UsesKill = false;
}