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i965: Add support for EXT_texture_swizzle to the new FS backend.

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Eric Anholt
2010-10-02 23:44:29 -07:00
parent 8f7177e0de
commit 4fb0c92c69
1 changed files with 21 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_fs.cpp
+21
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@@ -1437,6 +1437,27 @@ fs_visitor::visit(ir_texture *ir)
if (ir->shadow_comparitor)
inst->shadow_compare = true;
if (c->key.tex_swizzles[inst->sampler] != SWIZZLE_NOOP) {
fs_reg swizzle_dst = fs_reg(this, glsl_type::vec4_type);
for (int i = 0; i < 4; i++) {
int swiz = GET_SWZ(c->key.tex_swizzles[inst->sampler], i);
fs_reg l = swizzle_dst;
l.reg_offset += i;
if (swiz == SWIZZLE_ZERO) {
emit(fs_inst(BRW_OPCODE_MOV, l, fs_reg(0.0f)));
} else if (swiz == SWIZZLE_ONE) {
emit(fs_inst(BRW_OPCODE_MOV, l, fs_reg(1.0f)));
} else {
fs_reg r = dst;
r.reg_offset += GET_SWZ(c->key.tex_swizzles[inst->sampler], i);
emit(fs_inst(BRW_OPCODE_MOV, l, r));
}
}
this->result = swizzle_dst;
}
}
void