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/*
* Copyright © 2011 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 "brw_util.h"
#include "program/prog_parameter.h"
#include "program/prog_statevars.h"
#include "intel_batchbuffer.h"
static void
upload_vs_state(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
uint32_t floating_point_mode = 0;
const int max_threads_shift = brw->is_haswell ?
HSW_VS_MAX_THREADS_SHIFT : GEN6_VS_MAX_THREADS_SHIFT;
gen7_emit_vs_workaround_flush(brw);
/* BRW_NEW_VS_BINDING_TABLE */
BEGIN_BATCH(2);
OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_VS << 16 | (2 - 2));
OUT_BATCH(brw->vs.bind_bo_offset);
ADVANCE_BATCH();
/* CACHE_NEW_SAMPLER */
BEGIN_BATCH(2);
OUT_BATCH(_3DSTATE_SAMPLER_STATE_POINTERS_VS << 16 | (2 - 2));
OUT_BATCH(brw->sampler.offset);
ADVANCE_BATCH();
if (brw->vs.push_const_size == 0) {
/* Disable the push constant buffers. */
BEGIN_BATCH(7);
OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (7 - 2));
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
ADVANCE_BATCH();
} else {
uint8_t mocs = brw->is_haswell ? GEN7_MOCS_L3 : 0;
BEGIN_BATCH(7);
OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (7 - 2));
OUT_BATCH(brw->vs.push_const_size);
OUT_BATCH(0);
/* Pointer to the VS constant buffer. Covered by the set of
* state flags from gen6_prepare_wm_contants
*/
OUT_BATCH(brw->vs.push_const_offset | mocs);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
ADVANCE_BATCH();
}
/* Use ALT floating point mode for ARB vertex programs, because they
* require 0^0 == 1.
*/
if (ctx->Shader.CurrentVertexProgram == NULL)
floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT;
BEGIN_BATCH(6);
OUT_BATCH(_3DSTATE_VS << 16 | (6 - 2));
OUT_BATCH(brw->vs.prog_offset);
OUT_BATCH(floating_point_mode |
((ALIGN(brw->sampler.count, 4)/4) << GEN6_VS_SAMPLER_COUNT_SHIFT));
if (brw->vs.prog_data->base.total_scratch) {
OUT_RELOC(brw->vs.scratch_bo,
I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
ffs(brw->vs.prog_data->base.total_scratch) - 11);
} else {
OUT_BATCH(0);
}
OUT_BATCH((1 << GEN6_VS_DISPATCH_START_GRF_SHIFT) |
(brw->vs.prog_data->base.urb_read_length << GEN6_VS_URB_READ_LENGTH_SHIFT) |
(0 << GEN6_VS_URB_ENTRY_READ_OFFSET_SHIFT));
OUT_BATCH(((brw->max_vs_threads - 1) << max_threads_shift) |
GEN6_VS_STATISTICS_ENABLE |
GEN6_VS_ENABLE);
ADVANCE_BATCH();
}
const struct brw_tracked_state gen7_vs_state = {
.dirty = {
.mesa = _NEW_TRANSFORM | _NEW_PROGRAM_CONSTANTS,
.brw = (BRW_NEW_CONTEXT |
BRW_NEW_VERTEX_PROGRAM |
BRW_NEW_VS_BINDING_TABLE |
BRW_NEW_BATCH),
.cache = CACHE_NEW_VS_PROG | CACHE_NEW_SAMPLER
},
.emit = upload_vs_state,
};
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