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 #include "lp_screen.h"
  50
  51 /* This is only safe if there's just one concurrent context */
  52 #ifdef EMBEDDED_DEVICE
  53 #define USE_GLOBAL_LLVM_CONTEXT
  54 #endif
  55
  56 static void llvmpipe_destroy( struct pipe_context *pipe )
  57 {
  58    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
  59    uint i;
  60
  61    lp_print_counters();
  62
  63    if (llvmpipe->csctx) {
  64       lp_csctx_destroy(llvmpipe->csctx);
  65    }
  66    if (llvmpipe->blitter) {
  67       util_blitter_destroy(llvmpipe->blitter);
  68    }
  69
  70    if (llvmpipe->pipe.stream_uploader)
  71       u_upload_destroy(llvmpipe->pipe.stream_uploader);
  72
  73    /* This will also destroy llvmpipe->setup:
  74     */
  75    if (llvmpipe->draw)
  76       draw_destroy( llvmpipe->draw );
  77
  78    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  79       pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
  80    }
  81
  82    pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
  83
  84    for (enum pipe_shader_type s = PIPE_SHADER_VERTEX; s < PIPE_SHADER_TYPES; s++) {
  85       for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
  86          pipe_sampler_view_reference(&llvmpipe->sampler_views[s][i], NULL);
  87       }
  88       for (i = 0; i < LP_MAX_TGSI_SHADER_IMAGES; i++) {
  89          pipe_resource_reference(&llvmpipe->images[s][i].resource, NULL);
  90       }
  91       for (i = 0; i < LP_MAX_TGSI_SHADER_BUFFERS; i++) {
  92          pipe_resource_reference(&llvmpipe->ssbos[s][i].buffer, NULL);
  93       }
  94       for (i = 0; i < ARRAY_SIZE(llvmpipe->constants[s]); i++) {
  95          pipe_resource_reference(&llvmpipe->constants[s][i].buffer, NULL);
  96       }
  97    }
  98
  99    for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
 100       pipe_vertex_buffer_unreference(&llvmpipe->vertex_buffer[i]);
 101    }
 102
 103    lp_delete_setup_variants(llvmpipe);
 104
 105 #ifndef USE_GLOBAL_LLVM_CONTEXT
 106    LLVMContextDispose(llvmpipe->context);
 107 #endif
 108    llvmpipe->context = NULL;
 109
 110    align_free( llvmpipe );
 111 }
 112
 113 static void
 114 do_flush( struct pipe_context *pipe,
 115           struct pipe_fence_handle **fence,
 116           unsigned flags)
 117 {
 118    llvmpipe_flush(pipe, fence, __FUNCTION__);
 119 }
 120
 121
 122 static void
 123 llvmpipe_render_condition(struct pipe_context *pipe,
 124                           struct pipe_query *query,
 125                           bool condition,
 126                           enum pipe_render_cond_flag mode)
 127 {
 128    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 129
 130    llvmpipe->render_cond_query = query;
 131    llvmpipe->render_cond_mode = mode;
 132    llvmpipe->render_cond_cond = condition;
 133 }
 134
 135 static void
 136 llvmpipe_texture_barrier(struct pipe_context *pipe, unsigned flags)
 137 {
 138    llvmpipe_flush(pipe, NULL, __FUNCTION__);
 139 }
 140
 141 static void lp_draw_disk_cache_find_shader(void *cookie,
 142                                            struct lp_cached_code *cache,
 143                                            unsigned char ir_sha1_cache_key[20])
 144 {
 145    struct llvmpipe_screen *screen = cookie;
 146    lp_disk_cache_find_shader(screen, cache, ir_sha1_cache_key);
 147 }
 148
 149 static void lp_draw_disk_cache_insert_shader(void *cookie,
 150                                              struct lp_cached_code *cache,
 151                                              unsigned char ir_sha1_cache_key[20])
 152 {
 153    struct llvmpipe_screen *screen = cookie;
 154    lp_disk_cache_insert_shader(screen, cache, ir_sha1_cache_key);
 155 }
 156
 157 static enum pipe_reset_status
 158 llvmpipe_get_device_reset_status(struct pipe_context *pipe)
 159 {
 160    return PIPE_NO_RESET;
 161 }
 162
 163 struct pipe_context *
 164 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
 165                         unsigned flags)
 166 {
 167    struct llvmpipe_context *llvmpipe;
 168
 169    llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
 170    if (!llvmpipe)
 171       return NULL;
 172
 173    util_init_math();
 174
 175    memset(llvmpipe, 0, sizeof *llvmpipe);
 176
 177    make_empty_list(&llvmpipe->fs_variants_list);
 178
 179    make_empty_list(&llvmpipe->setup_variants_list);
 180
 181    make_empty_list(&llvmpipe->cs_variants_list);
 182
 183    llvmpipe->pipe.screen = screen;
 184    llvmpipe->pipe.priv = priv;
 185
 186    /* Init the pipe context methods */
 187    llvmpipe->pipe.destroy = llvmpipe_destroy;
 188    llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
 189    llvmpipe->pipe.clear = llvmpipe_clear;
 190    llvmpipe->pipe.flush = do_flush;
 191    llvmpipe->pipe.texture_barrier = llvmpipe_texture_barrier;
 192
 193    llvmpipe->pipe.render_condition = llvmpipe_render_condition;
 194
 195    llvmpipe->pipe.get_device_reset_status = llvmpipe_get_device_reset_status;
 196    llvmpipe_init_blend_funcs(llvmpipe);
 197    llvmpipe_init_clip_funcs(llvmpipe);
 198    llvmpipe_init_draw_funcs(llvmpipe);
 199    llvmpipe_init_compute_funcs(llvmpipe);
 200    llvmpipe_init_sampler_funcs(llvmpipe);
 201    llvmpipe_init_query_funcs( llvmpipe );
 202    llvmpipe_init_vertex_funcs(llvmpipe);
 203    llvmpipe_init_so_funcs(llvmpipe);
 204    llvmpipe_init_fs_funcs(llvmpipe);
 205    llvmpipe_init_vs_funcs(llvmpipe);
 206    llvmpipe_init_gs_funcs(llvmpipe);
 207    llvmpipe_init_tess_funcs(llvmpipe);
 208    llvmpipe_init_rasterizer_funcs(llvmpipe);
 209    llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
 210    llvmpipe_init_surface_functions(llvmpipe);
 211
 212 #ifdef USE_GLOBAL_LLVM_CONTEXT
 213    llvmpipe->context = LLVMGetGlobalContext();
 214 #else
 215    llvmpipe->context = LLVMContextCreate();
 216 #endif
 217
 218    if (!llvmpipe->context)
 219       goto fail;
 220
 221    /*
 222     * Create drawing context and plug our rendering stage into it.
 223     */
 224    llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
 225                                                   llvmpipe->context);
 226    if (!llvmpipe->draw)
 227       goto fail;
 228
 229    draw_set_disk_cache_callbacks(llvmpipe->draw,
 230                                  llvmpipe_screen(screen),
 231                                  lp_draw_disk_cache_find_shader,
 232                                  lp_draw_disk_cache_insert_shader);
 233
 234    draw_set_constant_buffer_stride(llvmpipe->draw, lp_get_constant_buffer_stride(screen));
 235
 236    /* FIXME: devise alternative to draw_texture_samplers */
 237
 238    llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
 239                                       llvmpipe->draw );
 240    if (!llvmpipe->setup)
 241       goto fail;
 242
 243    llvmpipe->csctx = lp_csctx_create( &llvmpipe->pipe );
 244    if (!llvmpipe->csctx)
 245       goto fail;
 246    llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
 247    if (!llvmpipe->pipe.stream_uploader)
 248       goto fail;
 249    llvmpipe->pipe.const_uploader = llvmpipe->pipe.stream_uploader;
 250
 251    llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
 252    if (!llvmpipe->blitter) {
 253       goto fail;
 254    }
 255
 256    /* must be done before installing Draw stages */
 257    util_blitter_cache_all_shaders(llvmpipe->blitter);
 258
 259    /* plug in AA line/point stages */
 260    draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
 261    draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
 262    draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
 263
 264    /* convert points and lines into triangles:
 265     * (otherwise, draw points and lines natively)
 266     */
 267    draw_wide_point_sprites(llvmpipe->draw, FALSE);
 268    draw_enable_point_sprites(llvmpipe->draw, FALSE);
 269    draw_wide_point_threshold(llvmpipe->draw, 10000.0);
 270    draw_wide_line_threshold(llvmpipe->draw, 10000.0);
 271
 272    lp_reset_counters();
 273
 274    /* If llvmpipe_set_scissor_states() is never called, we still need to
 275     * make sure that derived scissor state is computed.
 276     * See https://bugs.freedesktop.org/show_bug.cgi?id=101709
 277     */
 278    llvmpipe->dirty |= LP_NEW_SCISSOR;
 279
 280    return &llvmpipe->pipe;
 281
 282  fail:
 283    llvmpipe_destroy(&llvmpipe->pipe);
 284    return NULL;
 285 }
 286