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/*
* Copyright © 2009 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include "intel_batchbuffer.h"
#include "intel_fbo.h"
#include "brw_context.h"
#include "brw_defines.h"
#include "brw_state.h"
static void
gen6_upload_depth_stencil_state(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
struct gen6_depth_stencil_state *ds;
struct intel_renderbuffer *depth_irb;
/* _NEW_BUFFERS */
depth_irb = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_DEPTH);
ds = brw_state_batch(brw, AUB_TRACE_DEPTH_STENCIL_STATE,
sizeof(*ds), 64,
&brw->cc.depth_stencil_state_offset);
memset(ds, 0, sizeof(*ds));
/* _NEW_STENCIL | _NEW_BUFFERS */
if (ctx->Stencil._Enabled) {
int back = ctx->Stencil._BackFace;
ds->ds0.stencil_enable = 1;
ds->ds0.stencil_func =
intel_translate_compare_func(ctx->Stencil.Function[0]);
ds->ds0.stencil_fail_op =
intel_translate_stencil_op(ctx->Stencil.FailFunc[0]);
ds->ds0.stencil_pass_depth_fail_op =
intel_translate_stencil_op(ctx->Stencil.ZFailFunc[0]);
ds->ds0.stencil_pass_depth_pass_op =
intel_translate_stencil_op(ctx->Stencil.ZPassFunc[0]);
ds->ds1.stencil_write_mask = ctx->Stencil.WriteMask[0];
ds->ds1.stencil_test_mask = ctx->Stencil.ValueMask[0];
if (ctx->Stencil._TestTwoSide) {
ds->ds0.bf_stencil_enable = 1;
ds->ds0.bf_stencil_func =
intel_translate_compare_func(ctx->Stencil.Function[back]);
ds->ds0.bf_stencil_fail_op =
intel_translate_stencil_op(ctx->Stencil.FailFunc[back]);
ds->ds0.bf_stencil_pass_depth_fail_op =
intel_translate_stencil_op(ctx->Stencil.ZFailFunc[back]);
ds->ds0.bf_stencil_pass_depth_pass_op =
intel_translate_stencil_op(ctx->Stencil.ZPassFunc[back]);
ds->ds1.bf_stencil_write_mask = ctx->Stencil.WriteMask[back];
ds->ds1.bf_stencil_test_mask = ctx->Stencil.ValueMask[back];
}
ds->ds0.stencil_write_enable = ctx->Stencil._WriteEnabled;
}
/* _NEW_DEPTH */
if (ctx->Depth.Test && depth_irb) {
ds->ds2.depth_test_enable = ctx->Depth.Test;
ds->ds2.depth_test_func = intel_translate_compare_func(ctx->Depth.Func);
ds->ds2.depth_write_enable = ctx->Depth.Mask;
}
/* Point the GPU at the new indirect state. */
if (brw->gen == 6) {
BEGIN_BATCH(4);
OUT_BATCH(_3DSTATE_CC_STATE_POINTERS << 16 | (4 - 2));
OUT_BATCH(0);
OUT_BATCH(brw->cc.depth_stencil_state_offset | 1);
OUT_BATCH(0);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(2);
OUT_BATCH(_3DSTATE_DEPTH_STENCIL_STATE_POINTERS << 16 | (2 - 2));
OUT_BATCH(brw->cc.depth_stencil_state_offset | 1);
ADVANCE_BATCH();
}
}
const struct brw_tracked_state gen6_depth_stencil_state = {
.dirty = {
.mesa = _NEW_BUFFERS |
_NEW_DEPTH |
_NEW_STENCIL,
.brw = BRW_NEW_BATCH |
BRW_NEW_STATE_BASE_ADDRESS,
},
.emit = gen6_upload_depth_stencil_state,
};
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