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/*
* Copyright © 2023 Imagination Technologies Ltd.
*
* 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 <assert.h>
#include <stdint.h>
#include "pvr_uscgen.h"
#include "rogue/rogue.h"
#include "rogue/rogue_builder.h"
#include "util/u_dynarray.h"
void pvr_uscgen_tq_frag(const struct pvr_tq_shader_properties *shader_props,
struct pvr_tq_frag_sh_reg_layout *sh_reg_layout,
unsigned *temps_used,
struct util_dynarray *binary)
{
rogue_builder b;
rogue_shader *shader = rogue_shader_create(NULL, MESA_SHADER_NONE);
unsigned smp_coord_size = 2;
unsigned smp_coord_idx = 0;
rogue_regarray *smp_coords;
unsigned channels = 0;
unsigned output_idx = 1;
rogue_regarray *outputs = NULL;
unsigned image_state_size = 4;
unsigned image_state_idx;
rogue_regarray *image_state;
unsigned smp_state_size = 4;
unsigned smp_state_idx;
rogue_regarray *smp_state;
rogue_set_shader_name(shader, "TQ (fragment)");
rogue_builder_init(&b, shader);
rogue_push_block(&b);
smp_coords =
rogue_ssa_vec_regarray(b.shader, smp_coord_size, smp_coord_idx, 0);
/* TODO: Unrestrict. */
assert(shader_props->full_rate == false);
assert(shader_props->pick_component == false);
const struct pvr_tq_layer_properties *layer_props =
&shader_props->layer_props;
uint32_t loads;
/* TODO: Unrestrict. */
assert(layer_props->msaa == false);
assert(layer_props->sample_count == 1U);
assert(layer_props->resolve_op == PVR_RESOLVE_BLEND);
assert(layer_props->pbe_format == PVR_TRANSFER_PBE_PIXEL_SRC_RAW64 ||
layer_props->pbe_format == PVR_TRANSFER_PBE_PIXEL_SRC_RAW128);
assert(layer_props->sample == false);
assert(layer_props->layer_floats == PVR_INT_COORD_SET_FLOATS_0);
assert(layer_props->byte_unwind == 0);
assert(layer_props->linear == false);
loads = pvr_pbe_pixel_num_loads(layer_props->pbe_format);
for (uint32_t load = 0; load < loads; ++load) {
if (shader_props->iterated) {
/* TODO: feed{back,forward} the coeff index to/from shader_info. */
unsigned coeff_index = 0;
rogue_regarray *coeffs =
rogue_coeff_regarray(b.shader, smp_coord_size * 4, coeff_index);
rogue_instr *instr = &rogue_FITR_PIXEL(&b,
rogue_ref_regarray(smp_coords),
rogue_ref_drc(0),
rogue_ref_regarray(coeffs),
rogue_ref_val(smp_coord_size))
->instr;
rogue_add_instr_comment(instr, "load_iterated");
} else {
rogue_instr *instr;
rogue_regarray *smp_coord_x =
rogue_ssa_vec_regarray(b.shader, 1, smp_coord_idx, 0);
rogue_regarray *smp_coord_y =
rogue_ssa_vec_regarray(b.shader, 1, smp_coord_idx, 1);
/* (X,Y).P, pixel (X,Y) coordinates, pixel mode. */
rogue_reg *in_x = rogue_special_reg(b.shader, 97);
rogue_reg *in_y = rogue_special_reg(b.shader, 100);
instr =
&rogue_MOV(&b, rogue_ref_regarray(smp_coord_x), rogue_ref_reg(in_x))
->instr;
rogue_add_instr_comment(instr, "load_x");
instr =
&rogue_MOV(&b, rogue_ref_regarray(smp_coord_y), rogue_ref_reg(in_y))
->instr;
rogue_add_instr_comment(instr, "load_y");
}
if (!layer_props->msaa) {
} else {
unreachable("Unsupported layer property (MSAA).");
}
}
/* Source conversion. */
switch (layer_props->pbe_format) {
case PVR_TRANSFER_PBE_PIXEL_SRC_RAW64:
case PVR_TRANSFER_PBE_PIXEL_SRC_RAW128:
break;
default:
unreachable("Unsupported layer property (format).");
}
/* TODO: Select the texture_regs index appropriately. */
assert(sh_reg_layout->combined_image_samplers.count == 1);
image_state_idx = sh_reg_layout->combined_image_samplers.offsets[0].image;
image_state =
rogue_shared_regarray(b.shader, image_state_size, image_state_idx);
smp_state_idx = sh_reg_layout->combined_image_samplers.offsets[0].sampler;
smp_state = rogue_shared_regarray(b.shader, smp_state_size, smp_state_idx);
/* Pack/blend phase. */
rogue_backend_instr *smp2d;
switch (layer_props->pbe_format) {
case PVR_TRANSFER_PBE_PIXEL_SRC_RAW64:
case PVR_TRANSFER_PBE_PIXEL_SRC_RAW128: {
switch (layer_props->pbe_format) {
case PVR_TRANSFER_PBE_PIXEL_SRC_RAW64:
channels = 2;
break;
case PVR_TRANSFER_PBE_PIXEL_SRC_RAW128:
channels = 4;
break;
default:
unreachable("Unsupported layer property (format).");
}
outputs = rogue_ssa_vec_regarray(b.shader, channels, output_idx, 0);
smp2d = rogue_SMP2D(&b,
rogue_ref_regarray(outputs),
rogue_ref_drc(0),
rogue_ref_regarray(image_state),
rogue_ref_regarray(smp_coords),
rogue_ref_regarray(smp_state),
rogue_ref_io(ROGUE_IO_NONE),
rogue_ref_val(channels));
rogue_set_backend_op_mod(smp2d, ROGUE_BACKEND_OP_MOD_SLCWRITEBACK);
rogue_add_instr_comment(&smp2d->instr, "pack/blend");
if (!shader_props->iterated)
rogue_set_backend_op_mod(smp2d, ROGUE_BACKEND_OP_MOD_NNCOORDS);
break;
}
default:
unreachable("Unsupported layer property (format).");
}
assert(channels && outputs);
/* Copy outputs. */
for (unsigned u = 0; u < channels; ++u) {
rogue_regarray *output_elem =
rogue_ssa_vec_regarray(b.shader, 1, output_idx, u);
rogue_reg *pixout_elem = rogue_pixout_reg(b.shader, u);
rogue_MOV(&b,
rogue_ref_reg(pixout_elem),
rogue_ref_regarray(output_elem));
}
rogue_END(&b);
rogue_shader_passes(shader);
rogue_encode_shader(NULL, shader, binary);
*temps_used = rogue_count_used_regs(shader, ROGUE_REG_CLASS_TEMP);
sh_reg_layout->compiler_out.usc_constants.count = 0;
sh_reg_layout->compiler_out_total = 0;
ralloc_free(shader);
}
void pvr_uscgen_tq_eot(unsigned rt_count,
const uint64_t *pbe_regs,
struct util_dynarray *binary)
{
rogue_builder b;
rogue_shader *shader = rogue_shader_create(NULL, MESA_SHADER_NONE);
rogue_set_shader_name(shader, "TQ (EOT)");
rogue_builder_init(&b, shader);
rogue_push_block(&b);
rogue_backend_instr *emitpix = NULL;
for (unsigned u = 0; u < rt_count; ++u) {
if (u > 0)
rogue_WOP(&b);
rogue_reg *state_word_0 = rogue_shared_reg(shader, pbe_regs[u]);
rogue_reg *state_word_1 = rogue_shared_reg(shader, pbe_regs[u] + 1);
emitpix = rogue_EMITPIX(&b,
rogue_ref_reg(state_word_0),
rogue_ref_reg(state_word_1));
}
assert(emitpix);
rogue_set_backend_op_mod(emitpix, ROGUE_BACKEND_OP_MOD_FREEP);
rogue_END(&b);
rogue_shader_passes(shader);
rogue_encode_shader(NULL, shader, binary);
ralloc_free(shader);
}
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