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Member "mesa-20.1.8/src/gallium/drivers/llvmpipe/lp_context.c" (16 Sep 2020, 7804 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /**************************************************************************
    2  * 
    3  * Copyright 2007 VMware, Inc.
    4  * All Rights Reserved.
    5  * Copyright 2008 VMware, Inc.  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 /* Author:
   30  *    Keith Whitwell <keithw@vmware.com>
   31  */
   32 
   33 #include "draw/draw_context.h"
   34 #include "draw/draw_vbuf.h"
   35 #include "pipe/p_defines.h"
   36 #include "util/u_inlines.h"
   37 #include "util/u_math.h"
   38 #include "util/u_memory.h"
   39 #include "util/simple_list.h"
   40 #include "util/u_upload_mgr.h"
   41 #include "lp_clear.h"
   42 #include "lp_context.h"
   43 #include "lp_flush.h"
   44 #include "lp_perf.h"
   45 #include "lp_state.h"
   46 #include "lp_surface.h"
   47 #include "lp_query.h"
   48 #include "lp_setup.h"
   49 
   50 /* This is only safe if there's just one concurrent context */
   51 #ifdef EMBEDDED_DEVICE
   52 #define USE_GLOBAL_LLVM_CONTEXT
   53 #endif
   54 
   55 static void llvmpipe_destroy( struct pipe_context *pipe )
   56 {
   57    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
   58    uint i;
   59 
   60    lp_print_counters();
   61 
   62    if (llvmpipe->csctx) {
   63       lp_csctx_destroy(llvmpipe->csctx);
   64    }
   65    if (llvmpipe->blitter) {
   66       util_blitter_destroy(llvmpipe->blitter);
   67    }
   68 
   69    if (llvmpipe->pipe.stream_uploader)
   70       u_upload_destroy(llvmpipe->pipe.stream_uploader);
   71 
   72    /* This will also destroy llvmpipe->setup:
   73     */
   74    if (llvmpipe->draw)
   75       draw_destroy( llvmpipe->draw );
   76 
   77    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
   78       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
   79    }
   80 
   81    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
   82 
   83    for (enum pipe_shader_type s = PIPE_SHADER_VERTEX; s < PIPE_SHADER_TYPES; s++) {
   84       for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
   85          pipe_sampler_view_reference(&llvmpipe->sampler_views[s][i], NULL);
   86       }
   87       for (i = 0; i < LP_MAX_TGSI_SHADER_IMAGES; i++) {
   88          pipe_resource_reference(&llvmpipe->images[s][i].resource, NULL);
   89       }
   90       for (i = 0; i < LP_MAX_TGSI_SHADER_BUFFERS; i++) {
   91          pipe_resource_reference(&llvmpipe->ssbos[s][i].buffer, NULL);
   92       }
   93       for (i = 0; i < ARRAY_SIZE(llvmpipe->constants[s]); i++) {
   94          pipe_resource_reference(&llvmpipe->constants[s][i].buffer, NULL);
   95       }
   96    }
   97 
   98    for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
   99       pipe_vertex_buffer_unreference(&llvmpipe->vertex_buffer[i]);
  100    }
  101 
  102    lp_delete_setup_variants(llvmpipe);
  103 
  104 #ifndef USE_GLOBAL_LLVM_CONTEXT
  105    LLVMContextDispose(llvmpipe->context);
  106 #endif
  107    llvmpipe->context = NULL;
  108 
  109    align_free( llvmpipe );
  110 }
  111 
  112 static void
  113 do_flush( struct pipe_context *pipe,
  114           struct pipe_fence_handle **fence,
  115           unsigned flags)
  116 {
  117    llvmpipe_flush(pipe, fence, __FUNCTION__);
  118 }
  119 
  120 
  121 static void
  122 llvmpipe_render_condition(struct pipe_context *pipe,
  123                           struct pipe_query *query,
  124                           bool condition,
  125                           enum pipe_render_cond_flag mode)
  126 {
  127    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  128 
  129    llvmpipe->render_cond_query = query;
  130    llvmpipe->render_cond_mode = mode;
  131    llvmpipe->render_cond_cond = condition;
  132 }
  133 
  134 struct pipe_context *
  135 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
  136                         unsigned flags)
  137 {
  138    struct llvmpipe_context *llvmpipe;
  139 
  140    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
  141    if (!llvmpipe)
  142       return NULL;
  143 
  144    util_init_math();
  145 
  146    memset(llvmpipe, 0, sizeof *llvmpipe);
  147 
  148    make_empty_list(&llvmpipe->fs_variants_list);
  149 
  150    make_empty_list(&llvmpipe->setup_variants_list);
  151 
  152    make_empty_list(&llvmpipe->cs_variants_list);
  153 
  154    llvmpipe->pipe.screen = screen;
  155    llvmpipe->pipe.priv = priv;
  156 
  157    /* Init the pipe context methods */
  158    llvmpipe->pipe.destroy = llvmpipe_destroy;
  159    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
  160    llvmpipe->pipe.clear = llvmpipe_clear;
  161    llvmpipe->pipe.flush = do_flush;
  162 
  163    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
  164 
  165    llvmpipe_init_blend_funcs(llvmpipe);
  166    llvmpipe_init_clip_funcs(llvmpipe);
  167    llvmpipe_init_draw_funcs(llvmpipe);
  168    llvmpipe_init_compute_funcs(llvmpipe);
  169    llvmpipe_init_sampler_funcs(llvmpipe);
  170    llvmpipe_init_query_funcs( llvmpipe );
  171    llvmpipe_init_vertex_funcs(llvmpipe);
  172    llvmpipe_init_so_funcs(llvmpipe);
  173    llvmpipe_init_fs_funcs(llvmpipe);
  174    llvmpipe_init_vs_funcs(llvmpipe);
  175    llvmpipe_init_gs_funcs(llvmpipe);
  176    llvmpipe_init_tess_funcs(llvmpipe);
  177    llvmpipe_init_rasterizer_funcs(llvmpipe);
  178    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
  179    llvmpipe_init_surface_functions(llvmpipe);
  180 
  181 #ifdef USE_GLOBAL_LLVM_CONTEXT
  182    llvmpipe->context = LLVMGetGlobalContext();
  183 #else
  184    llvmpipe->context = LLVMContextCreate();
  185 #endif
  186 
  187    if (!llvmpipe->context)
  188       goto fail;
  189 
  190    /*
  191     * Create drawing context and plug our rendering stage into it.
  192     */
  193    llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
  194                                                   llvmpipe->context);
  195    if (!llvmpipe->draw)
  196       goto fail;
  197 
  198    /* FIXME: devise alternative to draw_texture_samplers */
  199 
  200    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
  201                                       llvmpipe->draw );
  202    if (!llvmpipe->setup)
  203       goto fail;
  204 
  205    llvmpipe->csctx = lp_csctx_create( &llvmpipe->pipe );
  206    if (!llvmpipe->csctx)
  207       goto fail;
  208    llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
  209    if (!llvmpipe->pipe.stream_uploader)
  210       goto fail;
  211    llvmpipe->pipe.const_uploader = llvmpipe->pipe.stream_uploader;
  212 
  213    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
  214    if (!llvmpipe->blitter) {
  215       goto fail;
  216    }
  217 
  218    /* must be done before installing Draw stages */
  219    util_blitter_cache_all_shaders(llvmpipe->blitter);
  220 
  221    /* plug in AA line/point stages */
  222    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
  223    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
  224    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
  225 
  226    /* convert points and lines into triangles: 
  227     * (otherwise, draw points and lines natively)
  228     */
  229    draw_wide_point_sprites(llvmpipe->draw, FALSE);
  230    draw_enable_point_sprites(llvmpipe->draw, FALSE);
  231    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
  232    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
  233 
  234    lp_reset_counters();
  235 
  236    /* If llvmpipe_set_scissor_states() is never called, we still need to
  237     * make sure that derived scissor state is computed.
  238     * See https://bugs.freedesktop.org/show_bug.cgi?id=101709
  239     */
  240    llvmpipe->dirty |= LP_NEW_SCISSOR;
  241 
  242    return &llvmpipe->pipe;
  243 
  244  fail:
  245    llvmpipe_destroy(&llvmpipe->pipe);
  246    return NULL;
  247 }
  248