src/gallium/drivers/llvmpipe/lp_context.c

   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 static void
 135 llvmpipe_texture_barrier(struct pipe_context *pipe, unsigned flags)
 136 {
 137    llvmpipe_flush(pipe, NULL, __FUNCTION__);
 138 }
 139
 140 struct pipe_context *
 141 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
 142                         unsigned flags)
 143 {
 144    struct llvmpipe_context *llvmpipe;
 145
 146    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 147    if (!llvmpipe)
 148       return NULL;
 149
 150    util_init_math();
 151
 152    memset(llvmpipe, 0, sizeof *llvmpipe);
 153
 154    make_empty_list(&llvmpipe->fs_variants_list);
 155
 156    make_empty_list(&llvmpipe->setup_variants_list);
 157
 158    make_empty_list(&llvmpipe->cs_variants_list);
 159
 160    llvmpipe->pipe.screen = screen;
 161    llvmpipe->pipe.priv = priv;
 162
 163    /* Init the pipe context methods */
 164    llvmpipe->pipe.destroy = llvmpipe_destroy;
 165    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 166    llvmpipe->pipe.clear = llvmpipe_clear;
 167    llvmpipe->pipe.flush = do_flush;
 168    llvmpipe->pipe.texture_barrier = llvmpipe_texture_barrier;
 169
 170    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 171
 172    llvmpipe_init_blend_funcs(llvmpipe);
 173    llvmpipe_init_clip_funcs(llvmpipe);
 174    llvmpipe_init_draw_funcs(llvmpipe);
 175    llvmpipe_init_compute_funcs(llvmpipe);
 176    llvmpipe_init_sampler_funcs(llvmpipe);
 177    llvmpipe_init_query_funcs( llvmpipe );
 178    llvmpipe_init_vertex_funcs(llvmpipe);
 179    llvmpipe_init_so_funcs(llvmpipe);
 180    llvmpipe_init_fs_funcs(llvmpipe);
 181    llvmpipe_init_vs_funcs(llvmpipe);
 182    llvmpipe_init_gs_funcs(llvmpipe);
 183    llvmpipe_init_tess_funcs(llvmpipe);
 184    llvmpipe_init_rasterizer_funcs(llvmpipe);
 185    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 186    llvmpipe_init_surface_functions(llvmpipe);
 187
 188 #ifdef USE_GLOBAL_LLVM_CONTEXT
 189    llvmpipe->context = LLVMGetGlobalContext();
 190 #else
 191    llvmpipe->context = LLVMContextCreate();
 192 #endif
 193
 194    if (!llvmpipe->context)
 195       goto fail;
 196
 197    /*
 198     * Create drawing context and plug our rendering stage into it.
 199     */
 200    llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
 201                                                   llvmpipe->context);
 202    if (!llvmpipe->draw)
 203       goto fail;
 204
 205    /* FIXME: devise alternative to draw_texture_samplers */
 206
 207    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 208                                       llvmpipe->draw );
 209    if (!llvmpipe->setup)
 210       goto fail;
 211
 212    llvmpipe->csctx = lp_csctx_create( &llvmpipe->pipe );
 213    if (!llvmpipe->csctx)
 214       goto fail;
 215    llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
 216    if (!llvmpipe->pipe.stream_uploader)
 217       goto fail;
 218    llvmpipe->pipe.const_uploader = llvmpipe->pipe.stream_uploader;
 219
 220    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
 221    if (!llvmpipe->blitter) {
 222       goto fail;
 223    }
 224
 225    /* must be done before installing Draw stages */
 226    util_blitter_cache_all_shaders(llvmpipe->blitter);
 227
 228    /* plug in AA line/point stages */
 229    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 230    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 231    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 232
 233    /* convert points and lines into triangles:
 234     * (otherwise, draw points and lines natively)
 235     */
 236    draw_wide_point_sprites(llvmpipe->draw, FALSE);
 237    draw_enable_point_sprites(llvmpipe->draw, FALSE);
 238    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 239    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 240
 241    lp_reset_counters();
 242
 243    /* If llvmpipe_set_scissor_states() is never called, we still need to
 244     * make sure that derived scissor state is computed.
 245     * See https://bugs.freedesktop.org/show_bug.cgi?id=101709
 246     */
 247    llvmpipe->dirty |= LP_NEW_SCISSOR;
 248
 249    return &llvmpipe->pipe;
 250
 251  fail:
 252    llvmpipe_destroy(&llvmpipe->pipe);
 253    return NULL;
 254 }
 255