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, j;
  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 (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  84       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
  85    }
  86
  87    for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  88       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][i], NULL);
  89    }
  90
  91    for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  92       pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_GEOMETRY][i], NULL);
  93    }
  94
  95    for (i = 0; i < ARRAY_SIZE(llvmpipe->constants); i++) {
  96       for (j = 0; j < ARRAY_SIZE(llvmpipe->constants[i]); j++) {
  97          pipe_resource_reference(&llvmpipe->constants[i][j].buffer, NULL);
  98       }
  99    }
 100
 101    for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
 102       pipe_vertex_buffer_unreference(&llvmpipe->vertex_buffer[i]);
 103    }
 104
 105    lp_delete_setup_variants(llvmpipe);
 106
 107 #ifndef USE_GLOBAL_LLVM_CONTEXT
 108    LLVMContextDispose(llvmpipe->context);
 109 #endif
 110    llvmpipe->context = NULL;
 111
 112    align_free( llvmpipe );
 113 }
 114
 115 static void
 116 do_flush( struct pipe_context *pipe,
 117           struct pipe_fence_handle **fence,
 118           unsigned flags)
 119 {
 120    llvmpipe_flush(pipe, fence, __FUNCTION__);
 121 }
 122
 123
 124 static void
 125 llvmpipe_render_condition(struct pipe_context *pipe,
 126                           struct pipe_query *query,
 127                           bool condition,
 128                           enum pipe_render_cond_flag mode)
 129 {
 130    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 131
 132    llvmpipe->render_cond_query = query;
 133    llvmpipe->render_cond_mode = mode;
 134    llvmpipe->render_cond_cond = condition;
 135 }
 136
 137 struct pipe_context *
 138 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
 139                         unsigned flags)
 140 {
 141    struct llvmpipe_context *llvmpipe;
 142
 143    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 144    if (!llvmpipe)
 145       return NULL;
 146
 147    util_init_math();
 148
 149    memset(llvmpipe, 0, sizeof *llvmpipe);
 150
 151    make_empty_list(&llvmpipe->fs_variants_list);
 152
 153    make_empty_list(&llvmpipe->setup_variants_list);
 154
 155
 156    llvmpipe->pipe.screen = screen;
 157    llvmpipe->pipe.priv = priv;
 158
 159    /* Init the pipe context methods */
 160    llvmpipe->pipe.destroy = llvmpipe_destroy;
 161    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 162    llvmpipe->pipe.clear = llvmpipe_clear;
 163    llvmpipe->pipe.flush = do_flush;
 164
 165    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 166
 167    llvmpipe_init_blend_funcs(llvmpipe);
 168    llvmpipe_init_clip_funcs(llvmpipe);
 169    llvmpipe_init_draw_funcs(llvmpipe);
 170    llvmpipe_init_sampler_funcs(llvmpipe);
 171    llvmpipe_init_query_funcs( llvmpipe );
 172    llvmpipe_init_vertex_funcs(llvmpipe);
 173    llvmpipe_init_so_funcs(llvmpipe);
 174    llvmpipe_init_fs_funcs(llvmpipe);
 175    llvmpipe_init_vs_funcs(llvmpipe);
 176    llvmpipe_init_gs_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