i915g: simplify math in constants emission
The old code even falls apart for nr == 0 (which is caught earlier, but)! Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -362,7 +362,7 @@ i915_emit_hardware_state(struct i915_context *i915 )
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uint i;
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OUT_BATCH( _3DSTATE_PIXEL_SHADER_CONSTANTS | (nr * 4) );
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OUT_BATCH( (1 << (nr - 1)) | ((1 << (nr - 1)) - 1) );
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OUT_BATCH((1 << nr) - 1);
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for (i = 0; i < nr; i++) {
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const uint *c;
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