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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 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 "freedreno_zsa.h"
#include "freedreno_context.h"
#include "freedreno_util.h"
static enum rb_stencil_op
stencil_op(unsigned op)
{
switch (op) {
case PIPE_STENCIL_OP_KEEP:
return STENCIL_KEEP;
case PIPE_STENCIL_OP_ZERO:
return STENCIL_ZERO;
case PIPE_STENCIL_OP_REPLACE:
return STENCIL_REPLACE;
case PIPE_STENCIL_OP_INCR:
return STENCIL_INCR_CLAMP;
case PIPE_STENCIL_OP_DECR:
return STENCIL_DECR_CLAMP;
case PIPE_STENCIL_OP_INCR_WRAP:
return STENCIL_INCR_WRAP;
case PIPE_STENCIL_OP_DECR_WRAP:
return STENCIL_DECR_WRAP;
case PIPE_STENCIL_OP_INVERT:
return STENCIL_INVERT;
default:
DBG("invalid stencil op: %u", op);
return 0;
}
}
static void *
fd_zsa_state_create(struct pipe_context *pctx,
const struct pipe_depth_stencil_alpha_state *cso)
{
struct fd_zsa_stateobj *so;
so = CALLOC_STRUCT(fd_zsa_stateobj);
if (!so)
return NULL;
so->base = *cso;
so->rb_depthcontrol |=
RB_DEPTHCONTROL_ZFUNC(cso->depth.func); /* maps 1:1 */
if (cso->depth.enabled)
so->rb_depthcontrol |= RB_DEPTHCONTROL_Z_ENABLE;
if (cso->depth.writemask)
so->rb_depthcontrol |= RB_DEPTHCONTROL_Z_WRITE_ENABLE;
if (cso->stencil[0].enabled) {
const struct pipe_stencil_state *s = &cso->stencil[0];
so->rb_depthcontrol |=
RB_DEPTHCONTROL_STENCIL_ENABLE |
RB_DEPTHCONTROL_STENCILFUNC(s->func) | /* maps 1:1 */
RB_DEPTHCONTROL_STENCILFAIL(stencil_op(s->fail_op)) |
RB_DEPTHCONTROL_STENCILZPASS(stencil_op(s->zpass_op)) |
RB_DEPTHCONTROL_STENCILZFAIL(stencil_op(s->zfail_op));
so->rb_stencilrefmask |=
0xff000000 | /* ??? */
RB_STENCILREFMASK_STENCILWRITEMASK(s->writemask) |
RB_STENCILREFMASK_STENCILMASK(s->valuemask);
if (cso->stencil[1].enabled) {
const struct pipe_stencil_state *bs = &cso->stencil[1];
so->rb_depthcontrol |=
RB_DEPTHCONTROL_BACKFACE_ENABLE |
RB_DEPTHCONTROL_STENCILFUNC_BF(bs->func) | /* maps 1:1 */
RB_DEPTHCONTROL_STENCILFAIL_BF(stencil_op(bs->fail_op)) |
RB_DEPTHCONTROL_STENCILZPASS_BF(stencil_op(bs->zpass_op)) |
RB_DEPTHCONTROL_STENCILZFAIL_BF(stencil_op(bs->zfail_op));
so->rb_stencilrefmask_bf |=
0xff000000 | /* ??? */
RB_STENCILREFMASK_STENCILWRITEMASK(bs->writemask) |
RB_STENCILREFMASK_STENCILMASK(bs->valuemask);
}
}
if (cso->alpha.enabled) {
so->rb_colorcontrol =
RB_COLORCONTROL_ALPHA_FUNC(cso->alpha.func) |
RB_COLORCONTROL_ALPHA_TEST_ENABLE;
so->rb_alpha_ref = f2d(cso->alpha.ref_value);
}
return so;
}
static void
fd_zsa_state_bind(struct pipe_context *pctx, void *hwcso)
{
struct fd_context *ctx = fd_context(pctx);
ctx->zsa = hwcso;
ctx->dirty |= FD_DIRTY_ZSA;
}
static void
fd_zsa_state_delete(struct pipe_context *pctx, void *hwcso)
{
FREE(hwcso);
}
void
fd_zsa_init(struct pipe_context *pctx)
{
pctx->create_depth_stencil_alpha_state = fd_zsa_state_create;
pctx->bind_depth_stencil_alpha_state = fd_zsa_state_bind;
pctx->delete_depth_stencil_alpha_state = fd_zsa_state_delete;
}
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