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 "lp_clear.h"
  41 #include "lp_context.h"
  42 #include "lp_flush.h"
  43 #include "lp_perf.h"
  44 #include "lp_state.h"
  45 #include "lp_surface.h"
  46 #include "lp_query.h"
  47 #include "lp_setup.h"
  48
  49 /* This is only safe if there's just one concurrent context */
  50 #ifdef PIPE_SUBSYSTEM_EMBEDDED
  51 #define USE_GLOBAL_LLVM_CONTEXT
  52 #endif
  53
  54 static void llvmpipe_destroy( struct pipe_context *pipe )
  55 {
  56    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  57    uint i, j;
  58
  59    lp_print_counters();
  60
  61    if (llvmpipe->blitter) {
  62       util_blitter_destroy(llvmpipe->blitter);
  63    }
  64
  65    /* This will also destroy llvmpipe->setup:
  66     */
  67    if (llvmpipe->draw)
  68       draw_destroy( llvmpipe->draw );
  69
  70    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  71       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  72    }
  73
  74    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  75
  76    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  77       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
  78    }
  79
  80    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  81       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][i], NULL);
  82    }
  83
  84    for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
  85       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_GEOMETRY][i], NULL);
  86    }
  87
  88    for (i = 0; i < Elements(llvmpipe->constants); i++) {
  89       for (j = 0; j < Elements(llvmpipe->constants[i]); j++) {
  90          pipe_resource_reference(&llvmpipe->constants[i][j].buffer, NULL);
  91       }
  92    }
  93
  94    for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
  95       pipe_resource_reference(&llvmpipe->vertex_buffer[i].buffer, NULL);
  96    }
  97
  98    lp_delete_setup_variants(llvmpipe);
  99
 100 #ifndef USE_GLOBAL_LLVM_CONTEXT
 101    LLVMContextDispose(llvmpipe->context);
 102 #endif
 103    llvmpipe->context = NULL;
 104
 105    align_free( llvmpipe );
 106 }
 107
 108 static void
 109 do_flush( struct pipe_context *pipe,
 110           struct pipe_fence_handle **fence,
 111           unsigned flags)
 112 {
 113    llvmpipe_flush(pipe, fence, __FUNCTION__);
 114 }
 115
 116
 117 static void
 118 llvmpipe_render_condition ( struct pipe_context *pipe,
 119                             struct pipe_query *query,
 120                             boolean condition,
 121                             uint mode )
 122 {
 123    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 124
 125    llvmpipe->render_cond_query = query;
 126    llvmpipe->render_cond_mode = mode;
 127    llvmpipe->render_cond_cond = condition;
 128 }
 129
 130 struct pipe_context *
 131 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
 132                         unsigned flags)
 133 {
 134    struct llvmpipe_context *llvmpipe;
 135
 136    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 137    if (!llvmpipe)
 138       return NULL;
 139
 140    util_init_math();
 141
 142    memset(llvmpipe, 0, sizeof *llvmpipe);
 143
 144    make_empty_list(&llvmpipe->fs_variants_list);
 145
 146    make_empty_list(&llvmpipe->setup_variants_list);
 147
 148
 149    llvmpipe->pipe.screen = screen;
 150    llvmpipe->pipe.priv = priv;
 151
 152    /* Init the pipe context methods */
 153    llvmpipe->pipe.destroy = llvmpipe_destroy;
 154    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 155    llvmpipe->pipe.clear = llvmpipe_clear;
 156    llvmpipe->pipe.flush = do_flush;
 157
 158    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 159
 160    llvmpipe_init_blend_funcs(llvmpipe);
 161    llvmpipe_init_clip_funcs(llvmpipe);
 162    llvmpipe_init_draw_funcs(llvmpipe);
 163    llvmpipe_init_sampler_funcs(llvmpipe);
 164    llvmpipe_init_query_funcs( llvmpipe );
 165    llvmpipe_init_vertex_funcs(llvmpipe);
 166    llvmpipe_init_so_funcs(llvmpipe);
 167    llvmpipe_init_fs_funcs(llvmpipe);
 168    llvmpipe_init_vs_funcs(llvmpipe);
 169    llvmpipe_init_gs_funcs(llvmpipe);
 170    llvmpipe_init_rasterizer_funcs(llvmpipe);
 171    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 172    llvmpipe_init_surface_functions(llvmpipe);
 173
 174 #ifdef USE_GLOBAL_LLVM_CONTEXT
 175    llvmpipe->context = LLVMGetGlobalContext();
 176 #else
 177    llvmpipe->context = LLVMContextCreate();
 178 #endif
 179
 180    if (!llvmpipe->context)
 181       goto fail;
 182
 183    /*
 184     * Create drawing context and plug our rendering stage into it.
 185     */
 186    llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
 187                                                   llvmpipe->context);
 188    if (!llvmpipe->draw)
 189       goto fail;
 190
 191    /* FIXME: devise alternative to draw_texture_samplers */
 192
 193    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 194                                       llvmpipe->draw );
 195    if (!llvmpipe->setup)
 196       goto fail;
 197
 198    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
 199    if (!llvmpipe->blitter) {
 200       goto fail;
 201    }
 202
 203    /* must be done before installing Draw stages */
 204    util_blitter_cache_all_shaders(llvmpipe->blitter);
 205
 206    /* plug in AA line/point stages */
 207    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 208    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 209    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 210
 211    /* convert points and lines into triangles:
 212     * (otherwise, draw points and lines natively)
 213     */
 214    draw_wide_point_sprites(llvmpipe->draw, FALSE);
 215    draw_enable_point_sprites(llvmpipe->draw, FALSE);
 216    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 217    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 218
 219    lp_reset_counters();
 220
 221    return &llvmpipe->pipe;
 222
 223  fail:
 224    llvmpipe_destroy(&llvmpipe->pipe);
 225    return NULL;
 226 }
 227