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i965: fs: Add fixup for textureSize on Gen6/7

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V2: Moved up into emit(ir_texture *) to avoid duplication and fix
ordering for Gen7; Gen6 math quirks moved into previous patches.

Tested on Gen6 only; passes all the cube_map_array piglits.

V3: Fixed weird whitespace
V4: Use sampler->type; otherwise broken on arrays of samplers.
v5: Minor style fixes (by anholt)

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Chris Forbes
2012-11-22 22:13:46 +13:00
committed by Eric Anholt
parent 6e34723ac9
commit d2dbba8755
1 changed files with 11 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+11
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@@ -1371,6 +1371,17 @@ fs_visitor::visit(ir_texture *ir)
if (ir->shadow_comparitor)
inst->shadow_compare = true;
/* fixup #layers for cube map arrays */
if (ir->op == ir_txs) {
glsl_type const *type = ir->sampler->type;
if (type->sampler_dimensionality == GLSL_SAMPLER_DIM_CUBE &&
type->sampler_array) {
fs_reg depth = dst;
depth.reg_offset = 2;
emit_math(SHADER_OPCODE_INT_QUOTIENT, depth, depth, fs_reg(6));
}
}
swizzle_result(ir, dst, sampler);
}