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Member "mesa-20.1.8/src/gallium/auxiliary/util/u_compute.c" (16 Sep 2020, 6568 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /**************************************************************************
    2  *
    3  * Copyright 2019 Sonny Jiang <sonnyj608@gmail.com>
    4  * Copyright 2019 Advanced Micro Devices, Inc.
    5  * All Rights Reserved.
    6  *
    7  * Permission is hereby granted, free of charge, to any person obtaining a
    8  * copy of this software and associated documentation files (the
    9  * "Software"), to deal in the Software without restriction, including
   10  * without limitation the rights to use, copy, modify, merge, publish,
   11  * distribute, sub license, and/or sell copies of the Software, and to
   12  * permit persons to whom the Software is furnished to do so, subject to
   13  * the following conditions:
   14  *
   15  * The above copyright notice and this permission notice (including the
   16  * next paragraph) shall be included in all copies or substantial portions
   17  * of the Software.
   18  *
   19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
   22  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
   23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   26  *
   27  **************************************************************************/
   28 
   29 #include "pipe/p_context.h"
   30 #include "pipe/p_state.h"
   31 
   32 #include "u_bitcast.h"
   33 #include "util/format/u_format.h"
   34 #include "u_sampler.h"
   35 #include "tgsi/tgsi_text.h"
   36 #include "tgsi/tgsi_ureg.h"
   37 #include "u_inlines.h"
   38 #include "u_compute.h"
   39 
   40 static void *blit_compute_shader(struct pipe_context *ctx)
   41 {
   42    static const char text[] =
   43       "COMP\n"
   44       "PROPERTY CS_FIXED_BLOCK_WIDTH 64\n"
   45       "PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
   46       "PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
   47       "DCL SV[0], THREAD_ID\n"
   48       "DCL SV[1], BLOCK_ID\n"
   49       "DCL IMAGE[0], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
   50       "DCL SAMP[0]\n"
   51       "DCL SVIEW[0], 2D_ARRAY, FLOAT\n"
   52       "DCL CONST[0][0..2]\n" // 0:xyzw 1:xyzw
   53       "DCL TEMP[0..4], LOCAL\n"
   54       "IMM[0] UINT32 {64, 1, 0, 0}\n"
   55 
   56       "UMAD TEMP[0].xyz, SV[1].xyzz, IMM[0].xyyy, SV[0].xyzz\n"
   57       "U2F TEMP[1].xyz, TEMP[0]\n"
   58       "MAD TEMP[2].xyz, TEMP[1], CONST[0][1], CONST[0][0]\n"
   59       "TEX_LZ TEMP[3], TEMP[2], SAMP[0], 2D_ARRAY\n"
   60       "UADD TEMP[4].xyz, TEMP[0], CONST[0][2]\n"
   61       "STORE IMAGE[0], TEMP[4], TEMP[3], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
   62       "END\n";
   63 
   64    struct tgsi_token tokens[1024];
   65    struct pipe_compute_state state = {0};
   66 
   67    if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
   68       assert(false);
   69       return NULL;
   70    }
   71 
   72    state.ir_type = PIPE_SHADER_IR_TGSI;
   73    state.prog = tokens;
   74 
   75    return ctx->create_compute_state(ctx, &state);
   76 }
   77 
   78 void util_compute_blit(struct pipe_context *ctx, struct pipe_blit_info *blit_info,
   79                        void **compute_state)
   80 {
   81    if (blit_info->src.box.width == 0 || blit_info->src.box.height == 0 ||
   82        blit_info->dst.box.width == 0 || blit_info->dst.box.height == 0)
   83      return;
   84 
   85    struct pipe_resource *src = blit_info->src.resource;
   86    struct pipe_resource *dst = blit_info->dst.resource;
   87    struct pipe_sampler_view src_templ = {0}, *src_view;
   88    void *sampler_state_p;
   89    unsigned width = blit_info->dst.box.width;
   90    unsigned height = blit_info->dst.box.height;
   91    float x_scale = blit_info->src.box.width / (float)blit_info->dst.box.width;
   92    float y_scale = blit_info->src.box.height / (float)blit_info->dst.box.height;
   93    float z_scale = blit_info->src.box.depth / (float)blit_info->dst.box.depth;
   94 
   95    unsigned data[] = {u_bitcast_f2u((blit_info->src.box.x + 0.5) / (float)src->width0),
   96                       u_bitcast_f2u((blit_info->src.box.y + 0.5) / (float)src->height0),
   97                       u_bitcast_f2u(blit_info->src.box.z),
   98                       u_bitcast_f2u(0),
   99                       u_bitcast_f2u(x_scale / src->width0),
  100                       u_bitcast_f2u(y_scale / src->height0),
  101                       u_bitcast_f2u(z_scale),
  102                       u_bitcast_f2u(0),
  103                       blit_info->dst.box.x,
  104                       blit_info->dst.box.y,
  105                       blit_info->dst.box.z,
  106                       0};
  107 
  108    struct pipe_constant_buffer cb = {0};
  109    cb.buffer_size = sizeof(data);
  110    cb.user_buffer = data;
  111    ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, &cb);
  112 
  113    struct pipe_image_view image = {0};
  114    image.resource = dst;
  115    image.shader_access = image.access = PIPE_IMAGE_ACCESS_WRITE;
  116    image.format = util_format_linear(blit_info->dst.format);
  117    image.u.tex.level = blit_info->dst.level;
  118    image.u.tex.first_layer = 0;
  119    image.u.tex.last_layer = (unsigned)(dst->array_size - 1);
  120 
  121    ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, &image);
  122 
  123    struct pipe_sampler_state sampler_state={0};
  124    sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
  125    sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
  126    sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
  127    sampler_state.normalized_coords = 1;
  128 
  129    if (blit_info->filter == PIPE_TEX_FILTER_LINEAR) {
  130       sampler_state.min_img_filter = PIPE_TEX_FILTER_LINEAR;
  131       sampler_state.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
  132    }
  133 
  134    sampler_state_p = ctx->create_sampler_state(ctx, &sampler_state);
  135    ctx->bind_sampler_states(ctx, PIPE_SHADER_COMPUTE, 0, 1, &sampler_state_p);
  136 
  137    /* Initialize the sampler view. */
  138    u_sampler_view_default_template(&src_templ, src, src->format);
  139    src_templ.format = util_format_linear(blit_info->src.format);
  140    src_view = ctx->create_sampler_view(ctx, src, &src_templ);
  141    ctx->set_sampler_views(ctx, PIPE_SHADER_COMPUTE, 0, 1, &src_view);
  142 
  143    if (!*compute_state)
  144      *compute_state = blit_compute_shader(ctx);
  145    ctx->bind_compute_state(ctx, *compute_state);
  146 
  147    struct pipe_grid_info grid_info = {0};
  148    grid_info.block[0] = 64;
  149    grid_info.last_block[0] = width % 64;
  150    grid_info.block[1] = 1;
  151    grid_info.block[2] = 1;
  152    grid_info.grid[0] = DIV_ROUND_UP(width, 64);
  153    grid_info.grid[1] = height;
  154    grid_info.grid[2] = 1;
  155 
  156    ctx->launch_grid(ctx, &grid_info);
  157 
  158    ctx->memory_barrier(ctx, PIPE_BARRIER_ALL);
  159 
  160    ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, NULL);
  161    ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, NULL);
  162    ctx->set_sampler_views(ctx, PIPE_SHADER_COMPUTE, 0, 1, NULL);
  163    pipe_sampler_view_reference(&src_view, NULL);
  164    ctx->delete_sampler_state(ctx, sampler_state_p);
  165    ctx->bind_compute_state(ctx, NULL);
  166 }