/**************************************************************************
*
* Copyright 2019 Sonny Jiang <sonnyj608@gmail.com>
* Copyright 2019 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 "pipe/p_context.h"
#include "pipe/p_state.h"
#include "u_bitcast.h"
#include "util/format/u_format.h"
#include "u_sampler.h"
#include "tgsi/tgsi_text.h"
#include "tgsi/tgsi_ureg.h"
#include "u_inlines.h"
#include "u_compute.h"
static void *blit_compute_shader(struct pipe_context *ctx)
{
static const char text[] =
"COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 64\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL IMAGE[0], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL SAMP[0]\n"
"DCL SVIEW[0], 2D_ARRAY, FLOAT\n"
"DCL CONST[0][0..2]\n" // 0:xyzw 1:xyzw
"DCL TEMP[0..4], LOCAL\n"
"IMM[0] UINT32 {64, 1, 0, 0}\n"
"UMAD TEMP[0].xyz, SV[1].xyzz, IMM[0].xyyy, SV[0].xyzz\n"
"U2F TEMP[1].xyz, TEMP[0]\n"
"MAD TEMP[2].xyz, TEMP[1], CONST[0][1], CONST[0][0]\n"
"TEX_LZ TEMP[3], TEMP[2], SAMP[0], 2D_ARRAY\n"
"UADD TEMP[4].xyz, TEMP[0], CONST[0][2]\n"
"STORE IMAGE[0], TEMP[4], TEMP[3], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
void util_compute_blit(struct pipe_context *ctx, struct pipe_blit_info *blit_info,
void **compute_state, bool half_texel_offset)
{
if (blit_info->src.box.width == 0 || blit_info->src.box.height == 0 ||
blit_info->dst.box.width == 0 || blit_info->dst.box.height == 0)
return;
struct pipe_resource *src = blit_info->src.resource;
struct pipe_resource *dst = blit_info->dst.resource;
struct pipe_sampler_view src_templ = {0}, *src_view;
void *sampler_state_p;
unsigned width = blit_info->dst.box.width;
unsigned height = blit_info->dst.box.height;
float x_scale = blit_info->src.box.width / (float)blit_info->dst.box.width;
float y_scale = blit_info->src.box.height / (float)blit_info->dst.box.height;
float z_scale = blit_info->src.box.depth / (float)blit_info->dst.box.depth;
float offset = half_texel_offset ? 0.5 : 0.0;
unsigned data[] = {u_bitcast_f2u((blit_info->src.box.x + offset) / (float)src->width0),
u_bitcast_f2u((blit_info->src.box.y + offset) / (float)src->height0),
u_bitcast_f2u(blit_info->src.box.z),
u_bitcast_f2u(0),
u_bitcast_f2u(x_scale / src->width0),
u_bitcast_f2u(y_scale / src->height0),
u_bitcast_f2u(z_scale),
u_bitcast_f2u(0),
blit_info->dst.box.x,
blit_info->dst.box.y,
blit_info->dst.box.z,
0};
struct pipe_constant_buffer cb = {0};
cb.buffer_size = sizeof(data);
cb.user_buffer = data;
ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, false, &cb);
struct pipe_image_view image = {0};
image.resource = dst;
image.shader_access = image.access = PIPE_IMAGE_ACCESS_WRITE;
image.format = util_format_linear(blit_info->dst.format);
image.u.tex.level = blit_info->dst.level;
image.u.tex.first_layer = 0;
image.u.tex.last_layer = (unsigned)(dst->array_size - 1);
ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, 0, &image);
struct pipe_sampler_state sampler_state={0};
sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler_state.normalized_coords = 1;
if (blit_info->filter == PIPE_TEX_FILTER_LINEAR) {
sampler_state.min_img_filter = PIPE_TEX_FILTER_LINEAR;
sampler_state.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
}
sampler_state_p = ctx->create_sampler_state(ctx, &sampler_state);
ctx->bind_sampler_states(ctx, PIPE_SHADER_COMPUTE, 0, 1, &sampler_state_p);
/* Initialize the sampler view. */
u_sampler_view_default_template(&src_templ, src, src->format);
src_templ.format = util_format_linear(blit_info->src.format);
src_view = ctx->create_sampler_view(ctx, src, &src_templ);
ctx->set_sampler_views(ctx, PIPE_SHADER_COMPUTE, 0, 1, 0, false, &src_view);
if (!*compute_state)
*compute_state = blit_compute_shader(ctx);
ctx->bind_compute_state(ctx, *compute_state);
struct pipe_grid_info grid_info = {0};
grid_info.block[0] = 64;
grid_info.last_block[0] = width % 64;
grid_info.block[1] = 1;
grid_info.block[2] = 1;
grid_info.grid[0] = DIV_ROUND_UP(width, 64);
grid_info.grid[1] = height;
grid_info.grid[2] = 1;
ctx->launch_grid(ctx, &grid_info);
ctx->memory_barrier(ctx, PIPE_BARRIER_ALL);
ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 0, 1, NULL);
ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, false, NULL);
ctx->set_sampler_views(ctx, PIPE_SHADER_COMPUTE, 0, 0, 1, false, NULL);
pipe_sampler_view_reference(&src_view, NULL);
ctx->delete_sampler_state(ctx, sampler_state_p);
ctx->bind_compute_state(ctx, NULL);
}