/*
* 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 <stdbool.h>
#include "brw_context.h"
#include "brw_state.h"
#include "brw_defines.h"
#include "brw_util.h"
#include "brw_wm.h"
#include "program/prog_parameter.h"
#include "program/prog_statevars.h"
#include "intel_batchbuffer.h"
static void
upload_wm_state(struct brw_context *brw)
{
struct intel_context *intel = &brw->intel;
struct gl_context *ctx = &intel->ctx;
const struct brw_fragment_program *fp =
brw_fragment_program_const(brw->fragment_program);
bool writes_depth = false;
uint32_t dw1, dw2;
/* _NEW_BUFFERS */
bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
dw1 = dw2 = 0;
dw1 |= GEN7_WM_STATISTICS_ENABLE;
dw1 |= GEN7_WM_LINE_AA_WIDTH_1_0;
dw1 |= GEN7_WM_LINE_END_CAP_AA_WIDTH_0_5;
/* _NEW_LINE */
if (ctx->Line.StippleFlag)
dw1 |= GEN7_WM_LINE_STIPPLE_ENABLE;
/* _NEW_POLYGON */
if (ctx->Polygon.StippleFlag)
dw1 |= GEN7_WM_POLYGON_STIPPLE_ENABLE;
/* BRW_NEW_FRAGMENT_PROGRAM */
if (fp->program.Base.InputsRead & FRAG_BIT_WPOS)
dw1 |= GEN7_WM_USES_SOURCE_DEPTH | GEN7_WM_USES_SOURCE_W;
if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
writes_depth = true;
dw1 |= GEN7_WM_PSCDEPTH_ON;
}
/* CACHE_NEW_WM_PROG */
dw1 |= brw->wm.prog_data->barycentric_interp_modes <<
GEN7_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT;
/* _NEW_COLOR, _NEW_MULTISAMPLE */
if (fp->program.UsesKill || ctx->Color.AlphaEnabled ||
ctx->Multisample.SampleAlphaToCoverage)
dw1 |= GEN7_WM_KILL_ENABLE;
/* _NEW_BUFFERS */
if (brw_color_buffer_write_enabled(brw) || writes_depth ||
dw1 & GEN7_WM_KILL_ENABLE) {
dw1 |= GEN7_WM_DISPATCH_ENABLE;
}
if (multisampled_fbo) {
/* _NEW_MULTISAMPLE */
if (ctx->Multisample.Enabled)
dw1 |= GEN7_WM_MSRAST_ON_PATTERN;
else
dw1 |= GEN7_WM_MSRAST_OFF_PIXEL;
dw2 |= GEN7_WM_MSDISPMODE_PERPIXEL;
} else {
dw1 |= GEN7_WM_MSRAST_OFF_PIXEL;
dw2 |= GEN7_WM_MSDISPMODE_PERSAMPLE;
}
BEGIN_BATCH(3);
OUT_BATCH(_3DSTATE_WM << 16 | (3 - 2));
OUT_BATCH(dw1);
OUT_BATCH(dw2);
ADVANCE_BATCH();
}
const struct brw_tracked_state gen7_wm_state = {
.dirty = {
.mesa = (_NEW_LINE | _NEW_POLYGON |
_NEW_COLOR | _NEW_BUFFERS |
_NEW_MULTISAMPLE),
.brw = (BRW_NEW_FRAGMENT_PROGRAM |
BRW_NEW_BATCH),
.cache = CACHE_NEW_WM_PROG,
},
.emit = upload_wm_state,
};
static void
upload_ps_state(struct brw_context *brw)
{
struct intel_context *intel = &brw->intel;
struct gl_context *ctx = &intel->ctx;
uint32_t dw2, dw4, dw5;
const int max_threads_shift = brw->intel.is_haswell ?
HSW_PS_MAX_THREADS_SHIFT : IVB_PS_MAX_THREADS_SHIFT;
/* BRW_NEW_PS_BINDING_TABLE */
BEGIN_BATCH(2);
OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_PS << 16 | (2 - 2));
OUT_BATCH(brw->wm.bind_bo_offset);
ADVANCE_BATCH();
/* CACHE_NEW_SAMPLER */
BEGIN_BATCH(2);
OUT_BATCH(_3DSTATE_SAMPLER_STATE_POINTERS_PS << 16 | (2 - 2));
OUT_BATCH(brw->sampler.offset);
ADVANCE_BATCH();
/* CACHE_NEW_WM_PROG */
if (brw->wm.prog_data->nr_params == 0) {
/* Disable the push constant buffers. */
BEGIN_BATCH(7);
OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (7 - 2));
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
ADVANCE_BATCH();
} else {
BEGIN_BATCH(7);
OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (7 - 2));
OUT_BATCH(ALIGN(brw->wm.prog_data->nr_params,
brw->wm.prog_data->dispatch_width) / 8);
OUT_BATCH(0);
/* Pointer to the WM constant buffer. Covered by the set of
* state flags from gen6_upload_wm_push_constants.
*/
OUT_BATCH(brw->wm.push_const_offset);
OUT_BATCH(0);
OUT_BATCH(0);
OUT_BATCH(0);
ADVANCE_BATCH();
}
dw2 = dw4 = dw5 = 0;
/* CACHE_NEW_SAMPLER */
dw2 |= (ALIGN(brw->sampler.count, 4) / 4) << GEN7_PS_SAMPLER_COUNT_SHIFT;
/* Use ALT floating point mode for ARB fragment programs, because they
* require 0^0 == 1. Even though _CurrentFragmentProgram is used for
* rendering, CurrentFragmentProgram is used for this check to
* differentiate between the GLSL and non-GLSL cases.
*/
if (intel->ctx.Shader.CurrentFragmentProgram == NULL)
dw2 |= GEN7_PS_FLOATING_POINT_MODE_ALT;
if (intel->is_haswell)
dw4 |= SET_FIELD(1, HSW_PS_SAMPLE_MASK); /* 1 sample for now */
dw4 |= (brw->max_wm_threads - 1) << max_threads_shift;
/* CACHE_NEW_WM_PROG */
if (brw->wm.prog_data->nr_params > 0)
dw4 |= GEN7_PS_PUSH_CONSTANT_ENABLE;
/* CACHE_NEW_WM_PROG | _NEW_COLOR
*
* The hardware wedges if you have this bit set but don't turn on any dual
* source blend factors.
*/
if (brw->wm.prog_data->dual_src_blend &&
(ctx->Color.BlendEnabled & 1) &&
ctx->Color.Blend[0]._UsesDualSrc) {
dw4 |= GEN7_PS_DUAL_SOURCE_BLEND_ENABLE;
}
/* BRW_NEW_FRAGMENT_PROGRAM */
if (brw->fragment_program->Base.InputsRead != 0)
dw4 |= GEN7_PS_ATTRIBUTE_ENABLE;
if (brw->wm.prog_data->dispatch_width == 8) {
dw4 |= GEN7_PS_8_DISPATCH_ENABLE;
if (brw->wm.prog_data->prog_offset_16)
dw4 |= GEN7_PS_16_DISPATCH_ENABLE;
} else {
dw4 |= GEN7_PS_16_DISPATCH_ENABLE;
}
dw5 |= (brw->wm.prog_data->first_curbe_grf <<
GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
dw5 |= (brw->wm.prog_data->first_curbe_grf_16 <<
GEN7_PS_DISPATCH_START_GRF_SHIFT_2);
BEGIN_BATCH(8);
OUT_BATCH(_3DSTATE_PS << 16 | (8 - 2));
OUT_BATCH(brw->wm.prog_offset);
OUT_BATCH(dw2);
if (brw->wm.prog_data->total_scratch) {
OUT_RELOC(brw->wm.scratch_bo,
I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
ffs(brw->wm.prog_data->total_scratch) - 11);
} else {
OUT_BATCH(0);
}
OUT_BATCH(dw4);
OUT_BATCH(dw5);
OUT_BATCH(0); /* kernel 1 pointer */
OUT_BATCH(brw->wm.prog_offset + brw->wm.prog_data->prog_offset_16);
ADVANCE_BATCH();
}
const struct brw_tracked_state gen7_ps_state = {
.dirty = {
.mesa = (_NEW_PROGRAM_CONSTANTS |
_NEW_COLOR),
.brw = (BRW_NEW_FRAGMENT_PROGRAM |
BRW_NEW_PS_BINDING_TABLE |
BRW_NEW_BATCH),
.cache = (CACHE_NEW_SAMPLER |
CACHE_NEW_WM_PROG)
},
.emit = upload_ps_state,
};