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freedreno/ir3: handle tex instrs w/ const offset 

Something we start to see with glsl_to_nir.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2015-11-05 15:38:32 -05:00
parent f212d7dc50
commit 8039a2a6b3
1 changed files with 16 additions and 0 deletions
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16
src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
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@ -1361,6 +1361,7 @@ emit_tex(struct ir3_compile *ctx, nir_tex_instr *tex)
struct ir3_block *b = ctx->block;
struct ir3_instruction **dst, *sam, *src0[12], *src1[4];
struct ir3_instruction **coord, *lod, *compare, *proj, **off, **ddx, **ddy;
struct ir3_instruction *const_off[4];
bool has_bias = false, has_lod = false, has_proj = false, has_off = false;
unsigned i, coords, flags;
unsigned nsrc0 = 0, nsrc1 = 0;
@ -1429,6 +1430,21 @@ emit_tex(struct ir3_compile *ctx, nir_tex_instr *tex)
tex_info(tex, &flags, &coords);
if (!has_off) {
/* could still have a constant offset: */
if (tex->const_offset[0] || tex->const_offset[1] ||
tex->const_offset[2] || tex->const_offset[3]) {
off = const_off;
off[0] = create_immed(b, tex->const_offset[0]);
off[1] = create_immed(b, tex->const_offset[1]);
off[2] = create_immed(b, tex->const_offset[2]);
off[3] = create_immed(b, tex->const_offset[3]);
has_off = true;
}
}
/* scale up integer coords for TXF based on the LOD */
if (ctx->unminify_coords && (opc == OPC_ISAML)) {
assert(has_lod);