aco/isel: move select_ps_epilog() into separate file

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34977>
This commit is contained in:
Daniel Schürmann
2025-05-12 15:24:21 +02:00
committed by Marge Bot
parent 776384d99d
commit b6442669c1
3 changed files with 438 additions and 419 deletions
@@ -9381,267 +9381,6 @@ visit_cf_list(isel_context* ctx, struct exec_list* list)
ctx->empty_exec_skip = std::move(empty_exec_skip_old);
}
static void
export_mrt(isel_context* ctx, const struct aco_export_mrt* mrt)
{
Builder bld(ctx->program, ctx->block);
bld.exp(aco_opcode::exp, mrt->out[0], mrt->out[1], mrt->out[2], mrt->out[3],
mrt->enabled_channels, mrt->target, mrt->compr);
ctx->program->has_color_exports = true;
}
static bool
export_fs_mrt_color(isel_context* ctx, const struct aco_ps_epilog_info* info, Temp colors[4],
unsigned slot, struct aco_export_mrt* mrt)
{
unsigned col_format = (info->spi_shader_col_format >> (slot * 4)) & 0xf;
if (col_format == V_028714_SPI_SHADER_ZERO)
return false;
Builder bld(ctx->program, ctx->block);
Operand values[4];
for (unsigned i = 0; i < 4; ++i) {
values[i] = Operand(colors[i]);
}
unsigned enabled_channels = 0;
aco_opcode compr_op = aco_opcode::num_opcodes;
bool compr = false;
bool is_16bit = colors[0].regClass() == v2b;
bool is_int8 = (info->color_is_int8 >> slot) & 1;
bool is_int10 = (info->color_is_int10 >> slot) & 1;
bool enable_mrt_output_nan_fixup = (ctx->options->enable_mrt_output_nan_fixup >> slot) & 1;
/* Replace NaN by zero (only 32-bit) to fix game bugs if requested. */
if (enable_mrt_output_nan_fixup && !is_16bit &&
(col_format == V_028714_SPI_SHADER_32_R || col_format == V_028714_SPI_SHADER_32_GR ||
col_format == V_028714_SPI_SHADER_32_AR || col_format == V_028714_SPI_SHADER_32_ABGR ||
col_format == V_028714_SPI_SHADER_FP16_ABGR)) {
for (unsigned i = 0; i < 4; i++) {
Temp is_not_nan =
bld.vopc(aco_opcode::v_cmp_eq_f32, bld.def(bld.lm), values[i], values[i]);
values[i] = bld.vop2(aco_opcode::v_cndmask_b32, bld.def(v1), Operand::zero(), values[i],
is_not_nan);
}
}
switch (col_format) {
case V_028714_SPI_SHADER_32_R: enabled_channels = 1; break;
case V_028714_SPI_SHADER_32_GR: enabled_channels = 0x3; break;
case V_028714_SPI_SHADER_32_AR:
if (ctx->options->gfx_level >= GFX10) {
/* Special case: on GFX10, the outputs are different for 32_AR */
enabled_channels = 0x3;
values[1] = values[3];
values[3] = Operand(v1);
} else {
enabled_channels = 0x9;
}
break;
case V_028714_SPI_SHADER_FP16_ABGR:
for (int i = 0; i < 2; i++) {
if (is_16bit) {
values[i] = bld.pseudo(aco_opcode::p_create_vector, bld.def(v1), values[i * 2],
values[i * 2 + 1]);
} else if (ctx->options->gfx_level == GFX8 || ctx->options->gfx_level == GFX9) {
values[i] = bld.vop3(aco_opcode::v_cvt_pkrtz_f16_f32_e64, bld.def(v1), values[i * 2],
values[i * 2 + 1]);
} else {
values[i] = bld.vop2(aco_opcode::v_cvt_pkrtz_f16_f32, bld.def(v1), values[i * 2],
values[i * 2 + 1]);
}
}
values[2] = Operand(v1);
values[3] = Operand(v1);
enabled_channels = 0xf;
compr = true;
break;
case V_028714_SPI_SHADER_UNORM16_ABGR:
if (is_16bit && ctx->options->gfx_level >= GFX9) {
compr_op = aco_opcode::v_cvt_pknorm_u16_f16;
} else {
compr_op = aco_opcode::v_cvt_pknorm_u16_f32;
}
break;
case V_028714_SPI_SHADER_SNORM16_ABGR:
if (is_16bit && ctx->options->gfx_level >= GFX9) {
compr_op = aco_opcode::v_cvt_pknorm_i16_f16;
} else {
compr_op = aco_opcode::v_cvt_pknorm_i16_f32;
}
break;
case V_028714_SPI_SHADER_UINT16_ABGR:
compr_op = aco_opcode::v_cvt_pk_u16_u32;
if (is_int8 || is_int10) {
/* clamp */
uint32_t max_rgb = is_int8 ? 255 : is_int10 ? 1023 : 0;
for (unsigned i = 0; i < 4; i++) {
uint32_t max = i == 3 && is_int10 ? 3 : max_rgb;
values[i] = bld.vop2(aco_opcode::v_min_u32, bld.def(v1), Operand::c32(max), values[i]);
}
} else if (is_16bit) {
for (unsigned i = 0; i < 4; i++) {
Temp tmp = convert_int(ctx, bld, values[i].getTemp(), 16, 32, false);
values[i] = Operand(tmp);
}
}
break;
case V_028714_SPI_SHADER_SINT16_ABGR:
compr_op = aco_opcode::v_cvt_pk_i16_i32;
if (is_int8 || is_int10) {
/* clamp */
uint32_t max_rgb = is_int8 ? 127 : is_int10 ? 511 : 0;
uint32_t min_rgb = is_int8 ? -128 : is_int10 ? -512 : 0;
for (unsigned i = 0; i < 4; i++) {
uint32_t max = i == 3 && is_int10 ? 1 : max_rgb;
uint32_t min = i == 3 && is_int10 ? -2u : min_rgb;
values[i] = bld.vop2(aco_opcode::v_min_i32, bld.def(v1), Operand::c32(max), values[i]);
values[i] = bld.vop2(aco_opcode::v_max_i32, bld.def(v1), Operand::c32(min), values[i]);
}
} else if (is_16bit) {
for (unsigned i = 0; i < 4; i++) {
Temp tmp = convert_int(ctx, bld, values[i].getTemp(), 16, 32, true);
values[i] = Operand(tmp);
}
}
break;
case V_028714_SPI_SHADER_32_ABGR: enabled_channels = 0xF; break;
case V_028714_SPI_SHADER_ZERO:
default: return false;
}
if (compr_op != aco_opcode::num_opcodes) {
values[0] = bld.vop3(compr_op, bld.def(v1), values[0], values[1]);
values[1] = bld.vop3(compr_op, bld.def(v1), values[2], values[3]);
values[2] = Operand(v1);
values[3] = Operand(v1);
enabled_channels = 0xf;
compr = true;
} else if (!compr) {
for (int i = 0; i < 4; i++)
values[i] = enabled_channels & (1 << i) ? values[i] : Operand(v1);
}
if (ctx->program->gfx_level >= GFX11) {
/* GFX11 doesn't use COMPR for exports, but the channel mask should be
* 0x3 instead.
*/
enabled_channels = compr ? 0x3 : enabled_channels;
compr = false;
}
for (unsigned i = 0; i < 4; i++)
mrt->out[i] = values[i];
mrt->target = V_008DFC_SQ_EXP_MRT;
mrt->enabled_channels = enabled_channels;
mrt->compr = compr;
return true;
}
static void
export_fs_mrtz(isel_context* ctx, const struct aco_ps_epilog_info* info, Temp depth, Temp stencil,
Temp samplemask, Temp alpha)
{
Builder bld(ctx->program, ctx->block);
unsigned enabled_channels = 0;
bool compr = false;
Operand values[4];
for (unsigned i = 0; i < 4; ++i) {
values[i] = Operand(v1);
}
const unsigned format =
ac_get_spi_shader_z_format(depth.id(), stencil.id(), samplemask.id(), alpha.id());
assert(format != V_028710_SPI_SHADER_ZERO);
/* Both stencil and sample mask only need 16-bits. */
if (format == V_028710_SPI_SHADER_UINT16_ABGR) {
compr = ctx->program->gfx_level < GFX11; /* COMPR flag */
if (stencil.id()) {
/* Stencil should be in X[23:16]. */
values[0] = bld.vop2(aco_opcode::v_lshlrev_b32, bld.def(v1), Operand::c32(16u), stencil);
enabled_channels |= ctx->program->gfx_level >= GFX11 ? 0x1 : 0x3;
}
if (samplemask.id()) {
/* SampleMask should be in Y[15:0]. */
values[1] = Operand(samplemask);
enabled_channels |= ctx->program->gfx_level >= GFX11 ? 0x2 : 0xc;
}
} else {
if (depth.id()) {
values[0] = Operand(depth);
enabled_channels |= 0x1;
}
if (stencil.id()) {
assert(format == V_028710_SPI_SHADER_32_GR || format == V_028710_SPI_SHADER_32_ABGR);
values[1] = Operand(stencil);
enabled_channels |= 0x2;
}
if (samplemask.id()) {
assert(format == V_028710_SPI_SHADER_32_ABGR);
values[2] = Operand(samplemask);
enabled_channels |= 0x4;
}
if (alpha.id()) {
assert(format == V_028710_SPI_SHADER_32_AR || format == V_028710_SPI_SHADER_32_ABGR);
assert(ctx->program->gfx_level >= GFX11 || info->alpha_to_one);
values[3] = Operand(alpha);
enabled_channels |= 0x8;
}
}
/* GFX6 (except OLAND and HAINAN) has a bug that it only looks at the X
* writemask component.
*/
if (ctx->options->gfx_level == GFX6 && ctx->options->family != CHIP_OLAND &&
ctx->options->family != CHIP_HAINAN) {
enabled_channels |= 0x1;
}
bld.exp(aco_opcode::exp, values[0], values[1], values[2], values[3], enabled_channels,
V_008DFC_SQ_EXP_MRTZ, compr);
}
static void
create_fs_null_export(isel_context* ctx)
{
/* FS must always have exports.
* So when there are none, we need to add a null export.
*/
Builder bld(ctx->program, ctx->block);
/* GFX11 doesn't support NULL exports, and MRT0 should be exported instead. */
unsigned dest = ctx->options->gfx_level >= GFX11 ? V_008DFC_SQ_EXP_MRT : V_008DFC_SQ_EXP_NULL;
bld.exp(aco_opcode::exp, Operand(v1), Operand(v1), Operand(v1), Operand(v1),
/* enabled_mask */ 0, dest, /* compr */ false, /* done */ true, /* vm */ true);
ctx->program->has_color_exports = true;
}
static void
create_fs_jump_to_epilog(isel_context* ctx)
{
@@ -10221,63 +9960,6 @@ select_program_merged(isel_context& ctx, const unsigned shader_count, nir_shader
}
}
void
emit_clamp_alpha_test(isel_context* ctx, const struct aco_ps_epilog_info* info, Temp colors[4],
unsigned color_index)
{
Builder bld(ctx->program, ctx->block);
if (info->clamp_color) {
for (unsigned i = 0; i < 4; i++) {
if (colors[i].regClass() == v2b) {
colors[i] = bld.vop3(aco_opcode::v_med3_f16, bld.def(v2b), Operand::c16(0u),
Operand::c16(0x3c00), colors[i]);
} else {
assert(colors[i].regClass() == v1);
colors[i] = bld.vop3(aco_opcode::v_med3_f32, bld.def(v1), Operand::zero(),
Operand::c32(0x3f800000u), colors[i]);
}
}
}
if (info->alpha_to_one) {
if (colors[3].regClass() == v2b)
colors[3] = bld.copy(bld.def(v2b), Operand::c16(0x3c00));
else
colors[3] = bld.copy(bld.def(v1), Operand::c32(0x3f800000u));
}
if (color_index == 0 && info->alpha_func != COMPARE_FUNC_ALWAYS) {
Operand cond = Operand::c32(-1u);
if (info->alpha_func != COMPARE_FUNC_NEVER) {
aco_opcode opcode = aco_opcode::num_opcodes;
switch (info->alpha_func) {
case COMPARE_FUNC_LESS: opcode = aco_opcode::v_cmp_ngt_f32; break;
case COMPARE_FUNC_EQUAL: opcode = aco_opcode::v_cmp_neq_f32; break;
case COMPARE_FUNC_LEQUAL: opcode = aco_opcode::v_cmp_nge_f32; break;
case COMPARE_FUNC_GREATER: opcode = aco_opcode::v_cmp_nlt_f32; break;
case COMPARE_FUNC_NOTEQUAL: opcode = aco_opcode::v_cmp_nlg_f32; break;
case COMPARE_FUNC_GEQUAL: opcode = aco_opcode::v_cmp_nle_f32; break;
default: unreachable("invalid alpha func");
}
Temp ref = get_arg(ctx, info->alpha_reference);
Temp alpha = colors[3].regClass() == v2b
? bld.vop1(aco_opcode::v_cvt_f32_f16, bld.def(v1), colors[3])
: colors[3];
/* true if not pass */
cond = bld.vopc(opcode, bld.def(bld.lm), ref, alpha);
}
bld.pseudo(aco_opcode::p_discard_if, cond);
ctx->block->kind |= block_kind_uses_discard;
ctx->program->needs_exact = true;
}
}
} /* end namespace */
void
@@ -10316,105 +9998,4 @@ select_program(Program* program, unsigned shader_count, struct nir_shader* const
}
}
void
select_ps_epilog(Program* program, void* pinfo, ac_shader_config* config,
const struct aco_compiler_options* options, const struct aco_shader_info* info,
const struct ac_shader_args* args)
{
const struct aco_ps_epilog_info* einfo = (const struct aco_ps_epilog_info*)pinfo;
isel_context ctx =
setup_isel_context(program, 0, NULL, config, options, info, args, SWStage::FS);
ctx.block->fp_mode = program->next_fp_mode;
add_startpgm(&ctx);
append_logical_start(ctx.block);
Builder bld(ctx.program, ctx.block);
bool has_mrtz_alpha = einfo->alpha_to_coverage_via_mrtz && einfo->colors[0].used;
Temp mrtz_alpha;
Temp colors[MAX_DRAW_BUFFERS][4];
for (unsigned i = 0; i < MAX_DRAW_BUFFERS; i++) {
if (!einfo->colors[i].used)
continue;
Temp color = get_arg(&ctx, einfo->colors[i]);
unsigned col_types = (einfo->color_types >> (i * 2)) & 0x3;
emit_split_vector(&ctx, color, col_types == ACO_TYPE_ANY32 ? 4 : 8);
for (unsigned c = 0; c < 4; ++c) {
colors[i][c] = emit_extract_vector(&ctx, color, c, col_types == ACO_TYPE_ANY32 ? v1 : v2b);
}
/* Store MRTZ.a before applying alpha-to-one if enabled. */
if (has_mrtz_alpha && i == 0)
mrtz_alpha = colors[0][3];
emit_clamp_alpha_test(&ctx, einfo, colors[i], i);
}
bool has_mrtz_depth = einfo->depth.used && !einfo->kill_depth;
bool has_mrtz_stencil = einfo->stencil.used && !einfo->kill_stencil;
bool has_mrtz_samplemask = einfo->samplemask.used && !einfo->kill_samplemask;
bool has_mrtz_export =
has_mrtz_depth || has_mrtz_stencil || has_mrtz_samplemask || has_mrtz_alpha;
if (has_mrtz_export) {
Temp depth = has_mrtz_depth ? get_arg(&ctx, einfo->depth) : Temp();
Temp stencil = has_mrtz_stencil ? get_arg(&ctx, einfo->stencil) : Temp();
Temp samplemask = has_mrtz_samplemask ? get_arg(&ctx, einfo->samplemask) : Temp();
export_fs_mrtz(&ctx, einfo, depth, stencil, samplemask, mrtz_alpha);
}
/* Export all color render targets */
struct aco_export_mrt mrts[MAX_DRAW_BUFFERS];
unsigned mrt_num = 0;
if (einfo->writes_all_cbufs) {
/* This will do nothing for color buffers with SPI_SHADER_COL_FORMAT=ZERO, so always
* iterate over all 8.
*/
for (unsigned i = 0; i < 8; i++) {
struct aco_export_mrt* mrt = &mrts[mrt_num];
if (export_fs_mrt_color(&ctx, einfo, colors[0], i, mrt))
mrt->target += mrt_num++;
}
} else {
for (unsigned i = 0; i < MAX_DRAW_BUFFERS; i++) {
struct aco_export_mrt* mrt = &mrts[mrt_num];
const uint8_t cb_idx = einfo->color_map[i];
if (cb_idx == 0xff || !einfo->colors[cb_idx].used)
continue;
if (export_fs_mrt_color(&ctx, einfo, colors[cb_idx], i, mrt)) {
mrt->target += mrt_num++;
}
}
}
if (mrt_num) {
if (ctx.options->gfx_level >= GFX11 && einfo->mrt0_is_dual_src) {
assert(mrt_num == 2);
create_fs_dual_src_export_gfx11(&ctx, &mrts[0], &mrts[1]);
} else {
for (unsigned i = 0; i < mrt_num; i++)
export_mrt(&ctx, &mrts[i]);
}
} else if (!has_mrtz_export && !einfo->skip_null_export) {
create_fs_null_export(&ctx);
}
program->config->float_mode = program->blocks[0].fp_mode.val;
append_logical_end(ctx.block);
ctx.block->kind |= block_kind_export_end;
bld.reset(ctx.block);
bld.sopp(aco_opcode::s_endpgm);
finish_program(&ctx);
}
} // namespace aco
@@ -0,0 +1,437 @@
/*
* Copyright © 2022 Valve Corporation
*
* SPDX-License-Identifier: MIT
*/
#include "aco_builder.h"
#include "aco_instruction_selection.h"
#include "aco_ir.h"
#include "amdgfxregs.h"
namespace aco {
namespace {
void
emit_clamp_alpha_test(isel_context* ctx, const struct aco_ps_epilog_info* info, Temp colors[4],
unsigned color_index)
{
Builder bld(ctx->program, ctx->block);
if (info->clamp_color) {
for (unsigned i = 0; i < 4; i++) {
if (colors[i].regClass() == v2b) {
colors[i] = bld.vop3(aco_opcode::v_med3_f16, bld.def(v2b), Operand::c16(0u),
Operand::c16(0x3c00), colors[i]);
} else {
assert(colors[i].regClass() == v1);
colors[i] = bld.vop3(aco_opcode::v_med3_f32, bld.def(v1), Operand::zero(),
Operand::c32(0x3f800000u), colors[i]);
}
}
}
if (info->alpha_to_one) {
if (colors[3].regClass() == v2b)
colors[3] = bld.copy(bld.def(v2b), Operand::c16(0x3c00));
else
colors[3] = bld.copy(bld.def(v1), Operand::c32(0x3f800000u));
}
if (color_index == 0 && info->alpha_func != COMPARE_FUNC_ALWAYS) {
Operand cond = Operand::c32(-1u);
if (info->alpha_func != COMPARE_FUNC_NEVER) {
aco_opcode opcode = aco_opcode::num_opcodes;
switch (info->alpha_func) {
case COMPARE_FUNC_LESS: opcode = aco_opcode::v_cmp_ngt_f32; break;
case COMPARE_FUNC_EQUAL: opcode = aco_opcode::v_cmp_neq_f32; break;
case COMPARE_FUNC_LEQUAL: opcode = aco_opcode::v_cmp_nge_f32; break;
case COMPARE_FUNC_GREATER: opcode = aco_opcode::v_cmp_nlt_f32; break;
case COMPARE_FUNC_NOTEQUAL: opcode = aco_opcode::v_cmp_nlg_f32; break;
case COMPARE_FUNC_GEQUAL: opcode = aco_opcode::v_cmp_nle_f32; break;
default: unreachable("invalid alpha func");
}
Temp ref = get_arg(ctx, info->alpha_reference);
Temp alpha = colors[3].regClass() == v2b
? bld.vop1(aco_opcode::v_cvt_f32_f16, bld.def(v1), colors[3])
: colors[3];
/* true if not pass */
cond = bld.vopc(opcode, bld.def(bld.lm), ref, alpha);
}
bld.pseudo(aco_opcode::p_discard_if, cond);
ctx->block->kind |= block_kind_uses_discard;
ctx->program->needs_exact = true;
}
}
void
export_mrt(isel_context* ctx, const struct aco_export_mrt* mrt)
{
Builder bld(ctx->program, ctx->block);
bld.exp(aco_opcode::exp, mrt->out[0], mrt->out[1], mrt->out[2], mrt->out[3],
mrt->enabled_channels, mrt->target, mrt->compr);
ctx->program->has_color_exports = true;
}
bool
export_fs_mrt_color(isel_context* ctx, const struct aco_ps_epilog_info* info, Temp colors[4],
unsigned slot, struct aco_export_mrt* mrt)
{
unsigned col_format = (info->spi_shader_col_format >> (slot * 4)) & 0xf;
if (col_format == V_028714_SPI_SHADER_ZERO)
return false;
Builder bld(ctx->program, ctx->block);
Operand values[4];
for (unsigned i = 0; i < 4; ++i) {
values[i] = Operand(colors[i]);
}
unsigned enabled_channels = 0;
aco_opcode compr_op = aco_opcode::num_opcodes;
bool compr = false;
bool is_16bit = colors[0].regClass() == v2b;
bool is_int8 = (info->color_is_int8 >> slot) & 1;
bool is_int10 = (info->color_is_int10 >> slot) & 1;
bool enable_mrt_output_nan_fixup = (ctx->options->enable_mrt_output_nan_fixup >> slot) & 1;
/* Replace NaN by zero (only 32-bit) to fix game bugs if requested. */
if (enable_mrt_output_nan_fixup && !is_16bit &&
(col_format == V_028714_SPI_SHADER_32_R || col_format == V_028714_SPI_SHADER_32_GR ||
col_format == V_028714_SPI_SHADER_32_AR || col_format == V_028714_SPI_SHADER_32_ABGR ||
col_format == V_028714_SPI_SHADER_FP16_ABGR)) {
for (unsigned i = 0; i < 4; i++) {
Temp is_not_nan =
bld.vopc(aco_opcode::v_cmp_eq_f32, bld.def(bld.lm), values[i], values[i]);
values[i] = bld.vop2(aco_opcode::v_cndmask_b32, bld.def(v1), Operand::zero(), values[i],
is_not_nan);
}
}
switch (col_format) {
case V_028714_SPI_SHADER_32_R: enabled_channels = 1; break;
case V_028714_SPI_SHADER_32_GR: enabled_channels = 0x3; break;
case V_028714_SPI_SHADER_32_AR:
if (ctx->options->gfx_level >= GFX10) {
/* Special case: on GFX10, the outputs are different for 32_AR */
enabled_channels = 0x3;
values[1] = values[3];
values[3] = Operand(v1);
} else {
enabled_channels = 0x9;
}
break;
case V_028714_SPI_SHADER_FP16_ABGR:
for (int i = 0; i < 2; i++) {
if (is_16bit) {
values[i] = bld.pseudo(aco_opcode::p_create_vector, bld.def(v1), values[i * 2],
values[i * 2 + 1]);
} else if (ctx->options->gfx_level == GFX8 || ctx->options->gfx_level == GFX9) {
values[i] = bld.vop3(aco_opcode::v_cvt_pkrtz_f16_f32_e64, bld.def(v1), values[i * 2],
values[i * 2 + 1]);
} else {
values[i] = bld.vop2(aco_opcode::v_cvt_pkrtz_f16_f32, bld.def(v1), values[i * 2],
values[i * 2 + 1]);
}
}
values[2] = Operand(v1);
values[3] = Operand(v1);
enabled_channels = 0xf;
compr = true;
break;
case V_028714_SPI_SHADER_UNORM16_ABGR:
if (is_16bit && ctx->options->gfx_level >= GFX9) {
compr_op = aco_opcode::v_cvt_pknorm_u16_f16;
} else {
compr_op = aco_opcode::v_cvt_pknorm_u16_f32;
}
break;
case V_028714_SPI_SHADER_SNORM16_ABGR:
if (is_16bit && ctx->options->gfx_level >= GFX9) {
compr_op = aco_opcode::v_cvt_pknorm_i16_f16;
} else {
compr_op = aco_opcode::v_cvt_pknorm_i16_f32;
}
break;
case V_028714_SPI_SHADER_UINT16_ABGR:
compr_op = aco_opcode::v_cvt_pk_u16_u32;
if (is_int8 || is_int10) {
/* clamp */
uint32_t max_rgb = is_int8 ? 255 : is_int10 ? 1023 : 0;
for (unsigned i = 0; i < 4; i++) {
uint32_t max = i == 3 && is_int10 ? 3 : max_rgb;
values[i] = bld.vop2(aco_opcode::v_min_u32, bld.def(v1), Operand::c32(max), values[i]);
}
} else if (is_16bit) {
for (unsigned i = 0; i < 4; i++) {
Temp tmp = convert_int(ctx, bld, values[i].getTemp(), 16, 32, false);
values[i] = Operand(tmp);
}
}
break;
case V_028714_SPI_SHADER_SINT16_ABGR:
compr_op = aco_opcode::v_cvt_pk_i16_i32;
if (is_int8 || is_int10) {
/* clamp */
uint32_t max_rgb = is_int8 ? 127 : is_int10 ? 511 : 0;
uint32_t min_rgb = is_int8 ? -128 : is_int10 ? -512 : 0;
for (unsigned i = 0; i < 4; i++) {
uint32_t max = i == 3 && is_int10 ? 1 : max_rgb;
uint32_t min = i == 3 && is_int10 ? -2u : min_rgb;
values[i] = bld.vop2(aco_opcode::v_min_i32, bld.def(v1), Operand::c32(max), values[i]);
values[i] = bld.vop2(aco_opcode::v_max_i32, bld.def(v1), Operand::c32(min), values[i]);
}
} else if (is_16bit) {
for (unsigned i = 0; i < 4; i++) {
Temp tmp = convert_int(ctx, bld, values[i].getTemp(), 16, 32, true);
values[i] = Operand(tmp);
}
}
break;
case V_028714_SPI_SHADER_32_ABGR: enabled_channels = 0xF; break;
case V_028714_SPI_SHADER_ZERO:
default: return false;
}
if (compr_op != aco_opcode::num_opcodes) {
values[0] = bld.vop3(compr_op, bld.def(v1), values[0], values[1]);
values[1] = bld.vop3(compr_op, bld.def(v1), values[2], values[3]);
values[2] = Operand(v1);
values[3] = Operand(v1);
enabled_channels = 0xf;
compr = true;
} else if (!compr) {
for (int i = 0; i < 4; i++)
values[i] = enabled_channels & (1 << i) ? values[i] : Operand(v1);
}
if (ctx->program->gfx_level >= GFX11) {
/* GFX11 doesn't use COMPR for exports, but the channel mask should be
* 0x3 instead.
*/
enabled_channels = compr ? 0x3 : enabled_channels;
compr = false;
}
for (unsigned i = 0; i < 4; i++)
mrt->out[i] = values[i];
mrt->target = V_008DFC_SQ_EXP_MRT;
mrt->enabled_channels = enabled_channels;
mrt->compr = compr;
return true;
}
void
export_fs_mrtz(isel_context* ctx, const struct aco_ps_epilog_info* info, Temp depth, Temp stencil,
Temp samplemask, Temp alpha)
{
Builder bld(ctx->program, ctx->block);
unsigned enabled_channels = 0;
bool compr = false;
Operand values[4];
for (unsigned i = 0; i < 4; ++i) {
values[i] = Operand(v1);
}
const unsigned format =
ac_get_spi_shader_z_format(depth.id(), stencil.id(), samplemask.id(), alpha.id());
assert(format != V_028710_SPI_SHADER_ZERO);
/* Both stencil and sample mask only need 16-bits. */
if (format == V_028710_SPI_SHADER_UINT16_ABGR) {
compr = ctx->program->gfx_level < GFX11; /* COMPR flag */
if (stencil.id()) {
/* Stencil should be in X[23:16]. */
values[0] = bld.vop2(aco_opcode::v_lshlrev_b32, bld.def(v1), Operand::c32(16u), stencil);
enabled_channels |= ctx->program->gfx_level >= GFX11 ? 0x1 : 0x3;
}
if (samplemask.id()) {
/* SampleMask should be in Y[15:0]. */
values[1] = Operand(samplemask);
enabled_channels |= ctx->program->gfx_level >= GFX11 ? 0x2 : 0xc;
}
} else {
if (depth.id()) {
values[0] = Operand(depth);
enabled_channels |= 0x1;
}
if (stencil.id()) {
assert(format == V_028710_SPI_SHADER_32_GR || format == V_028710_SPI_SHADER_32_ABGR);
values[1] = Operand(stencil);
enabled_channels |= 0x2;
}
if (samplemask.id()) {
assert(format == V_028710_SPI_SHADER_32_ABGR);
values[2] = Operand(samplemask);
enabled_channels |= 0x4;
}
if (alpha.id()) {
assert(format == V_028710_SPI_SHADER_32_AR || format == V_028710_SPI_SHADER_32_ABGR);
assert(ctx->program->gfx_level >= GFX11 || info->alpha_to_one);
values[3] = Operand(alpha);
enabled_channels |= 0x8;
}
}
/* GFX6 (except OLAND and HAINAN) has a bug that it only looks at the X
* writemask component.
*/
if (ctx->options->gfx_level == GFX6 && ctx->options->family != CHIP_OLAND &&
ctx->options->family != CHIP_HAINAN) {
enabled_channels |= 0x1;
}
bld.exp(aco_opcode::exp, values[0], values[1], values[2], values[3], enabled_channels,
V_008DFC_SQ_EXP_MRTZ, compr);
}
void
create_fs_null_export(isel_context* ctx)
{
/* FS must always have exports.
* So when there are none, we need to add a null export.
*/
Builder bld(ctx->program, ctx->block);
/* GFX11 doesn't support NULL exports, and MRT0 should be exported instead. */
unsigned dest = ctx->options->gfx_level >= GFX11 ? V_008DFC_SQ_EXP_MRT : V_008DFC_SQ_EXP_NULL;
bld.exp(aco_opcode::exp, Operand(v1), Operand(v1), Operand(v1), Operand(v1),
/* enabled_mask */ 0, dest, /* compr */ false, /* done */ true, /* vm */ true);
ctx->program->has_color_exports = true;
}
} // namespace
void
select_ps_epilog(Program* program, void* pinfo, ac_shader_config* config,
const struct aco_compiler_options* options, const struct aco_shader_info* info,
const struct ac_shader_args* args)
{
const struct aco_ps_epilog_info* einfo = (const struct aco_ps_epilog_info*)pinfo;
isel_context ctx =
setup_isel_context(program, 0, NULL, config, options, info, args, SWStage::FS);
ctx.block->fp_mode = program->next_fp_mode;
add_startpgm(&ctx);
append_logical_start(ctx.block);
Builder bld(ctx.program, ctx.block);
bool has_mrtz_alpha = einfo->alpha_to_coverage_via_mrtz && einfo->colors[0].used;
Temp mrtz_alpha;
Temp colors[MAX_DRAW_BUFFERS][4];
for (unsigned i = 0; i < MAX_DRAW_BUFFERS; i++) {
if (!einfo->colors[i].used)
continue;
Temp color = get_arg(&ctx, einfo->colors[i]);
unsigned col_types = (einfo->color_types >> (i * 2)) & 0x3;
emit_split_vector(&ctx, color, col_types == ACO_TYPE_ANY32 ? 4 : 8);
for (unsigned c = 0; c < 4; ++c) {
colors[i][c] = emit_extract_vector(&ctx, color, c, col_types == ACO_TYPE_ANY32 ? v1 : v2b);
}
/* Store MRTZ.a before applying alpha-to-one if enabled. */
if (has_mrtz_alpha && i == 0)
mrtz_alpha = colors[0][3];
emit_clamp_alpha_test(&ctx, einfo, colors[i], i);
}
bool has_mrtz_depth = einfo->depth.used && !einfo->kill_depth;
bool has_mrtz_stencil = einfo->stencil.used && !einfo->kill_stencil;
bool has_mrtz_samplemask = einfo->samplemask.used && !einfo->kill_samplemask;
bool has_mrtz_export =
has_mrtz_depth || has_mrtz_stencil || has_mrtz_samplemask || has_mrtz_alpha;
if (has_mrtz_export) {
Temp depth = has_mrtz_depth ? get_arg(&ctx, einfo->depth) : Temp();
Temp stencil = has_mrtz_stencil ? get_arg(&ctx, einfo->stencil) : Temp();
Temp samplemask = has_mrtz_samplemask ? get_arg(&ctx, einfo->samplemask) : Temp();
export_fs_mrtz(&ctx, einfo, depth, stencil, samplemask, mrtz_alpha);
}
/* Export all color render targets */
struct aco_export_mrt mrts[MAX_DRAW_BUFFERS];
unsigned mrt_num = 0;
if (einfo->writes_all_cbufs) {
/* This will do nothing for color buffers with SPI_SHADER_COL_FORMAT=ZERO, so always
* iterate over all 8.
*/
for (unsigned i = 0; i < 8; i++) {
struct aco_export_mrt* mrt = &mrts[mrt_num];
if (export_fs_mrt_color(&ctx, einfo, colors[0], i, mrt))
mrt->target += mrt_num++;
}
} else {
for (unsigned i = 0; i < MAX_DRAW_BUFFERS; i++) {
struct aco_export_mrt* mrt = &mrts[mrt_num];
const uint8_t cb_idx = einfo->color_map[i];
if (cb_idx == 0xff || !einfo->colors[cb_idx].used)
continue;
if (export_fs_mrt_color(&ctx, einfo, colors[cb_idx], i, mrt)) {
mrt->target += mrt_num++;
}
}
}
if (mrt_num) {
if (ctx.options->gfx_level >= GFX11 && einfo->mrt0_is_dual_src) {
assert(mrt_num == 2);
create_fs_dual_src_export_gfx11(&ctx, &mrts[0], &mrts[1]);
} else {
for (unsigned i = 0; i < mrt_num; i++)
export_mrt(&ctx, &mrts[i]);
}
} else if (!has_mrtz_export && !einfo->skip_null_export) {
create_fs_null_export(&ctx);
}
program->config->float_mode = program->blocks[0].fp_mode.val;
append_logical_end(ctx.block);
ctx.block->kind |= block_kind_export_end;
bld.reset(ctx.block);
bld.sopp(aco_opcode::s_endpgm);
finish_program(&ctx);
}
} // namespace aco
+1
View File
@@ -36,6 +36,7 @@ libaco_files = files(
'instruction_selection/aco_isel_cfg.cpp',
'instruction_selection/aco_isel_helpers.cpp',
'instruction_selection/aco_isel_setup.cpp',
'instruction_selection/aco_select_ps_epilog.cpp',
'instruction_selection/aco_select_ps_prolog.cpp',
'instruction_selection/aco_select_rt_prolog.cpp',
'instruction_selection/aco_select_trap_handler.cpp',