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/*
* Copyright © 2014 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.
*/
#include "brw_context.h"
#include "brw_state.h"
#include "brw_defines.h"
#include "intel_batchbuffer.h"
#include "main/shaderapi.h"
static void
gen7_upload_tcs_push_constants(struct brw_context *brw)
{
struct brw_stage_state *stage_state = &brw->tcs.base;
/* BRW_NEW_TESS_PROGRAMS */
const struct brw_program *tcp = brw_program_const(brw->tess_ctrl_program);
bool active = brw->tess_eval_program;
if (active) {
/* BRW_NEW_TCS_PROG_DATA */
const struct brw_stage_prog_data *prog_data = brw->tcs.base.prog_data;
_mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_TESS_CTRL);
gen6_upload_push_constants(brw, &tcp->program, prog_data, stage_state);
}
gen7_upload_constant_state(brw, stage_state, active, _3DSTATE_CONSTANT_HS);
}
const struct brw_tracked_state gen7_tcs_push_constants = {
.dirty = {
.mesa = _NEW_PROGRAM_CONSTANTS,
.brw = BRW_NEW_BATCH |
BRW_NEW_BLORP |
BRW_NEW_DEFAULT_TESS_LEVELS |
BRW_NEW_PUSH_CONSTANT_ALLOCATION |
BRW_NEW_TESS_PROGRAMS |
BRW_NEW_TCS_PROG_DATA,
},
.emit = gen7_upload_tcs_push_constants,
};
static void
gen7_upload_hs_state(struct brw_context *brw)
{
const struct gen_device_info *devinfo = &brw->screen->devinfo;
const struct brw_stage_state *stage_state = &brw->tcs.base;
/* BRW_NEW_TESS_PROGRAMS */
bool active = brw->tess_eval_program;
/* BRW_NEW_TCS_PROG_DATA */
const struct brw_stage_prog_data *prog_data = stage_state->prog_data;
const struct brw_tcs_prog_data *tcs_prog_data =
brw_tcs_prog_data(stage_state->prog_data);
if (active) {
BEGIN_BATCH(7);
OUT_BATCH(_3DSTATE_HS << 16 | (7 - 2));
OUT_BATCH(SET_FIELD(DIV_ROUND_UP(stage_state->sampler_count, 4),
GEN7_HS_SAMPLER_COUNT) |
SET_FIELD(prog_data->binding_table.size_bytes / 4,
GEN7_HS_BINDING_TABLE_ENTRY_COUNT) |
(devinfo->max_tcs_threads - 1));
OUT_BATCH(GEN7_HS_ENABLE |
GEN7_HS_STATISTICS_ENABLE |
SET_FIELD(tcs_prog_data->instances - 1,
GEN7_HS_INSTANCE_COUNT));
OUT_BATCH(stage_state->prog_offset);
if (prog_data->total_scratch) {
OUT_RELOC(stage_state->scratch_bo,
I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
ffs(stage_state->per_thread_scratch) - 11);
} else {
OUT_BATCH(0);
}
OUT_BATCH(GEN7_HS_INCLUDE_VERTEX_HANDLES |
SET_FIELD(prog_data->dispatch_grf_start_reg,
GEN7_HS_DISPATCH_START_GRF));
/* Ignore URB semaphores */
OUT_BATCH(0);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(7);
OUT_BATCH(_3DSTATE_HS << 16 | (7 - 2));
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
ADVANCE_BATCH();
}
brw->tcs.enabled = active;
}
const struct brw_tracked_state gen7_hs_state = {
.dirty = {
.mesa = 0,
.brw = BRW_NEW_BATCH |
BRW_NEW_BLORP |
BRW_NEW_TCS_PROG_DATA |
BRW_NEW_TESS_PROGRAMS,
},
.emit = gen7_upload_hs_state,
};
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