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/*
* Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
*
* 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:
* Rob Clark <robclark@freedesktop.org>
*/
#include "pipe/p_state.h"
#include "util/u_string.h"
#include "util/u_memory.h"
#include "fd4_zsa.h"
#include "fd4_context.h"
#include "fd4_format.h"
void *
fd4_zsa_state_create(struct pipe_context *pctx,
const struct pipe_depth_stencil_alpha_state *cso)
{
struct fd4_zsa_stateobj *so;
so = CALLOC_STRUCT(fd4_zsa_stateobj);
if (!so)
return NULL;
so->base = *cso;
so->rb_depth_control |=
A4XX_RB_DEPTH_CONTROL_ZFUNC(cso->depth.func); /* maps 1:1 */
if (cso->depth.enabled)
so->rb_depth_control |=
A4XX_RB_DEPTH_CONTROL_Z_ENABLE |
A4XX_RB_DEPTH_CONTROL_Z_TEST_ENABLE;
if (cso->depth.writemask)
so->rb_depth_control |= A4XX_RB_DEPTH_CONTROL_Z_WRITE_ENABLE;
if (cso->stencil[0].enabled) {
const struct pipe_stencil_state *s = &cso->stencil[0];
so->rb_stencil_control |=
A4XX_RB_STENCIL_CONTROL_STENCIL_READ |
A4XX_RB_STENCIL_CONTROL_STENCIL_ENABLE |
A4XX_RB_STENCIL_CONTROL_FUNC(s->func) | /* maps 1:1 */
A4XX_RB_STENCIL_CONTROL_FAIL(fd_stencil_op(s->fail_op)) |
A4XX_RB_STENCIL_CONTROL_ZPASS(fd_stencil_op(s->zpass_op)) |
A4XX_RB_STENCIL_CONTROL_ZFAIL(fd_stencil_op(s->zfail_op));
so->rb_stencil_control2 |=
A4XX_RB_STENCIL_CONTROL2_STENCIL_BUFFER;
so->rb_stencilrefmask |=
0xff000000 | /* ??? */
A4XX_RB_STENCILREFMASK_STENCILWRITEMASK(s->writemask) |
A4XX_RB_STENCILREFMASK_STENCILMASK(s->valuemask);
if (cso->stencil[1].enabled) {
const struct pipe_stencil_state *bs = &cso->stencil[1];
so->rb_stencil_control |=
A4XX_RB_STENCIL_CONTROL_STENCIL_ENABLE_BF |
A4XX_RB_STENCIL_CONTROL_FUNC_BF(bs->func) | /* maps 1:1 */
A4XX_RB_STENCIL_CONTROL_FAIL_BF(fd_stencil_op(bs->fail_op)) |
A4XX_RB_STENCIL_CONTROL_ZPASS_BF(fd_stencil_op(bs->zpass_op)) |
A4XX_RB_STENCIL_CONTROL_ZFAIL_BF(fd_stencil_op(bs->zfail_op));
so->rb_stencilrefmask_bf |=
0xff000000 | /* ??? */
A4XX_RB_STENCILREFMASK_BF_STENCILWRITEMASK(bs->writemask) |
A4XX_RB_STENCILREFMASK_BF_STENCILMASK(bs->valuemask);
}
}
if (cso->alpha.enabled) {
uint32_t ref = cso->alpha.ref_value * 255.0;
so->gras_alpha_control =
A4XX_GRAS_ALPHA_CONTROL_ALPHA_TEST_ENABLE;
so->rb_alpha_control =
A4XX_RB_ALPHA_CONTROL_ALPHA_TEST |
A4XX_RB_ALPHA_CONTROL_ALPHA_REF(ref) |
A4XX_RB_ALPHA_CONTROL_ALPHA_TEST_FUNC(cso->alpha.func);
so->rb_depth_control |=
A4XX_RB_DEPTH_CONTROL_EARLY_Z_DISABLE;
}
return so;
}
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