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 PIPE_SUBSYSTEM_EMBEDDED
  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, j;
  59
  60    lp_print_counters();
  61
  62    if (llvmpipe->blitter) {
  63       util_blitter_destroy(llvmpipe->blitter);
  64    }
  65
  66    if (llvmpipe->pipe.stream_uploader)
  67       u_upload_destroy(llvmpipe->pipe.stream_uploader);
  68
  69    /* This will also destroy llvmpipe->setup:
  70     */
  71    if (llvmpipe->draw)
  72       draw_destroy( llvmpipe->draw );
  73
  74    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  75       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  76    }
  77
  78    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  79
  80    for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  81       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
  82    }
  83
  84    for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  85       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][i], NULL);
  86    }
  87
  88    for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  89       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_GEOMETRY][i], NULL);
  90    }
  91
  92    for (i = 0; i < ARRAY_SIZE(llvmpipe->constants); i++) {
  93       for (j = 0; j < ARRAY_SIZE(llvmpipe->constants[i]); j++) {
  94          pipe_resource_reference(&llvmpipe->constants[i][j].buffer, NULL);
  95       }
  96    }
  97
  98    for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
  99       pipe_resource_reference(&llvmpipe->vertex_buffer[i].buffer, NULL);
 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                             boolean condition,
 125                             uint 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
 153    llvmpipe->pipe.screen = screen;
 154    llvmpipe->pipe.priv = priv;
 155
 156    /* Init the pipe context methods */
 157    llvmpipe->pipe.destroy = llvmpipe_destroy;
 158    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 159    llvmpipe->pipe.clear = llvmpipe_clear;
 160    llvmpipe->pipe.flush = do_flush;
 161
 162    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 163
 164    llvmpipe_init_blend_funcs(llvmpipe);
 165    llvmpipe_init_clip_funcs(llvmpipe);
 166    llvmpipe_init_draw_funcs(llvmpipe);
 167    llvmpipe_init_sampler_funcs(llvmpipe);
 168    llvmpipe_init_query_funcs( llvmpipe );
 169    llvmpipe_init_vertex_funcs(llvmpipe);
 170    llvmpipe_init_so_funcs(llvmpipe);
 171    llvmpipe_init_fs_funcs(llvmpipe);
 172    llvmpipe_init_vs_funcs(llvmpipe);
 173    llvmpipe_init_gs_funcs(llvmpipe);
 174    llvmpipe_init_rasterizer_funcs(llvmpipe);
 175    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 176    llvmpipe_init_surface_functions(llvmpipe);
 177
 178 #ifdef USE_GLOBAL_LLVM_CONTEXT
 179    llvmpipe->context = LLVMGetGlobalContext();
 180 #else
 181    llvmpipe->context = LLVMContextCreate();
 182 #endif
 183
 184    if (!llvmpipe->context)
 185       goto fail;
 186
 187    /*
 188     * Create drawing context and plug our rendering stage into it.
 189     */
 190    llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
 191                                                   llvmpipe->context);
 192    if (!llvmpipe->draw)
 193       goto fail;
 194
 195    /* FIXME: devise alternative to draw_texture_samplers */
 196
 197    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 198                                       llvmpipe->draw );
 199    if (!llvmpipe->setup)
 200       goto fail;
 201
 202    llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
 203    if (!llvmpipe->pipe.stream_uploader)
 204       goto fail;
 205    llvmpipe->pipe.const_uploader = llvmpipe->pipe.stream_uploader;
 206
 207    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
 208    if (!llvmpipe->blitter) {
 209       goto fail;
 210    }
 211
 212    /* must be done before installing Draw stages */
 213    util_blitter_cache_all_shaders(llvmpipe->blitter);
 214
 215    /* plug in AA line/point stages */
 216    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 217    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 218    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 219
 220    /* convert points and lines into triangles:
 221     * (otherwise, draw points and lines natively)
 222     */
 223    draw_wide_point_sprites(llvmpipe->draw, FALSE);
 224    draw_enable_point_sprites(llvmpipe->draw, FALSE);
 225    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 226    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 227
 228    lp_reset_counters();
 229
 230    return &llvmpipe->pipe;
 231
 232  fail:
 233    llvmpipe_destroy(&llvmpipe->pipe);
 234    return NULL;
 235 }
 236