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freedreno/ir3: rework varying slots (maybe??) 

See:
dEQP-GLES2.functional.shaders.swizzles.vector_swizzles.mediump_vec2_yyyy_fragment

if we only access (in FS) varying.y then it ends up in slot zero..  I'm
not sure the hw likes that..

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2016-11-28 16:02:31 -05:00
parent 36c648b894
commit 832dddcf91
1 changed files with 9 additions and 4 deletions
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13
src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
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@ -2499,7 +2499,7 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler,
actual_in = 0;
inloc = 0;
for (i = 0; i < so->inputs_count; i++) {
unsigned j, regid = ~0, compmask = 0;
unsigned j, regid = ~0, compmask = 0, maxcomp = 0;
so->inputs[i].ncomp = 0;
so->inputs[i].inloc = inloc;
for (j = 0; j < 4; j++) {
@ -2512,14 +2512,19 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler,
if ((so->type == SHADER_FRAGMENT) && so->inputs[i].bary) {
/* assign inloc: */
assert(in->regs[1]->flags & IR3_REG_IMMED);
in->regs[1]->iim_val = inloc++;
in->regs[1]->iim_val = inloc + j;
maxcomp = j + 1;
}
}
}
if ((so->type == SHADER_FRAGMENT) && compmask && so->inputs[i].bary)
if ((so->type == SHADER_FRAGMENT) && compmask && so->inputs[i].bary) {
so->varying_in++;
so->inputs[i].compmask = (1 << maxcomp) - 1;
inloc += maxcomp;
} else {
so->inputs[i].compmask = compmask;
}
so->inputs[i].regid = regid;
so->inputs[i].compmask = compmask;
}
if (ctx->astc_srgb)