src/gallium/drivers/softpipe/sp_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   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 TUNGSTEN GRAPHICS 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 <keith@tungstengraphics.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_math.h"
  37 #include "util/u_memory.h"
  38 #include "util/u_pstipple.h"
  39 #include "util/u_inlines.h"
  40 #include "tgsi/tgsi_exec.h"
  41 #include "sp_clear.h"
  42 #include "sp_context.h"
  43 #include "sp_flush.h"
  44 #include "sp_prim_vbuf.h"
  45 #include "sp_state.h"
  46 #include "sp_surface.h"
  47 #include "sp_tile_cache.h"
  48 #include "sp_tex_tile_cache.h"
  49 #include "sp_texture.h"
  50 #include "sp_query.h"
  51
  52
  53
  54 /**
  55  * Map any drawing surfaces which aren't already mapped
  56  */
  57 void
  58 softpipe_map_transfers(struct softpipe_context *sp)
  59 {
  60    unsigned i;
  61
  62    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  63       sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
  64    }
  65
  66    sp_tile_cache_map_transfers(sp->zsbuf_cache);
  67 }
  68
  69
  70 /**
  71  * Unmap any mapped drawing surfaces
  72  */
  73 void
  74 softpipe_unmap_transfers(struct softpipe_context *sp)
  75 {
  76    uint i;
  77
  78    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  79       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  80    }
  81
  82    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  83 }
  84
  85
  86 static void
  87 softpipe_destroy( struct pipe_context *pipe )
  88 {
  89    struct softpipe_context *softpipe = softpipe_context( pipe );
  90    uint i;
  91
  92 #if DO_PSTIPPLE_IN_HELPER_MODULE
  93    if (softpipe->pstipple.sampler)
  94       pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
  95
  96    pipe_resource_reference(&softpipe->pstipple.texture, NULL);
  97    pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
  98 #endif
  99
 100    if (softpipe->draw)
 101       draw_destroy( softpipe->draw );
 102
 103    if (softpipe->quad.shade)
 104       softpipe->quad.shade->destroy( softpipe->quad.shade );
 105
 106    if (softpipe->quad.depth_test)
 107       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
 108
 109    if (softpipe->quad.blend)
 110       softpipe->quad.blend->destroy( softpipe->quad.blend );
 111
 112    if (softpipe->quad.pstipple)
 113       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
 114
 115    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 116       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 117       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 118    }
 119
 120    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 121    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 122
 123    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 124       sp_destroy_tex_tile_cache(softpipe->fragment_tex_cache[i]);
 125       pipe_sampler_view_reference(&softpipe->fragment_sampler_views[i], NULL);
 126    }
 127
 128    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 129       sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
 130       pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], NULL);
 131    }
 132
 133    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 134       sp_destroy_tex_tile_cache(softpipe->geometry_tex_cache[i]);
 135       pipe_sampler_view_reference(&softpipe->geometry_sampler_views[i], NULL);
 136    }
 137
 138    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 139       uint j;
 140
 141       for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
 142          if (softpipe->constants[i][j]) {
 143             pipe_resource_reference(&softpipe->constants[i][j], NULL);
 144          }
 145       }
 146    }
 147
 148    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 149       pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
 150    }
 151
 152    tgsi_exec_machine_destroy(softpipe->fs_machine);
 153
 154    FREE( softpipe );
 155 }
 156
 157
 158 /**
 159  * if (the texture is being used as a framebuffer surface)
 160  *    return SP_REFERENCED_FOR_WRITE
 161  * else if (the texture is a bound texture source)
 162  *    return SP_REFERENCED_FOR_READ
 163  * else
 164  *    return SP_UNREFERENCED
 165  */
 166 unsigned int
 167 softpipe_is_resource_referenced( struct pipe_context *pipe,
 168                                  struct pipe_resource *texture,
 169                                  unsigned level, int layer)
 170 {
 171    struct softpipe_context *softpipe = softpipe_context( pipe );
 172    unsigned i;
 173
 174    if (texture->target == PIPE_BUFFER)
 175       return SP_UNREFERENCED;
 176
 177    /* check if any of the bound drawing surfaces are this texture */
 178    if (softpipe->dirty_render_cache) {
 179       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 180          if (softpipe->framebuffer.cbufs[i] &&
 181              softpipe->framebuffer.cbufs[i]->texture == texture) {
 182             return SP_REFERENCED_FOR_WRITE;
 183          }
 184       }
 185       if (softpipe->framebuffer.zsbuf &&
 186           softpipe->framebuffer.zsbuf->texture == texture) {
 187          return SP_REFERENCED_FOR_WRITE;
 188       }
 189    }
 190
 191    /* check if any of the tex_cache textures are this texture */
 192    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 193       if (softpipe->fragment_tex_cache[i] &&
 194           softpipe->fragment_tex_cache[i]->texture == texture)
 195          return SP_REFERENCED_FOR_READ;
 196    }
 197    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 198       if (softpipe->vertex_tex_cache[i] &&
 199           softpipe->vertex_tex_cache[i]->texture == texture)
 200          return SP_REFERENCED_FOR_READ;
 201    }
 202    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 203       if (softpipe->geometry_tex_cache[i] &&
 204           softpipe->geometry_tex_cache[i]->texture == texture)
 205          return SP_REFERENCED_FOR_READ;
 206    }
 207
 208    return SP_UNREFERENCED;
 209 }
 210
 211
 212
 213
 214 static void
 215 softpipe_render_condition( struct pipe_context *pipe,
 216                            struct pipe_query *query,
 217                            uint mode )
 218 {
 219    struct softpipe_context *softpipe = softpipe_context( pipe );
 220
 221    softpipe->render_cond_query = query;
 222    softpipe->render_cond_mode = mode;
 223 }
 224
 225
 226
 227 struct pipe_context *
 228 softpipe_create_context( struct pipe_screen *screen,
 229                          void *priv )
 230 {
 231    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 232    uint i;
 233
 234    util_init_math();
 235
 236 #ifdef PIPE_ARCH_X86
 237    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 238 #else
 239    softpipe->use_sse = FALSE;
 240 #endif
 241
 242    softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
 243    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 244
 245    softpipe->pipe.winsys = NULL;
 246    softpipe->pipe.screen = screen;
 247    softpipe->pipe.destroy = softpipe_destroy;
 248    softpipe->pipe.priv = priv;
 249
 250    /* state setters */
 251    softpipe_init_blend_funcs(&softpipe->pipe);
 252    softpipe_init_clip_funcs(&softpipe->pipe);
 253    softpipe_init_query_funcs( softpipe );
 254    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 255    softpipe_init_sampler_funcs(&softpipe->pipe);
 256    softpipe_init_shader_funcs(&softpipe->pipe);
 257    softpipe_init_streamout_funcs(&softpipe->pipe);
 258    softpipe_init_texture_funcs( &softpipe->pipe );
 259    softpipe_init_vertex_funcs(&softpipe->pipe);
 260
 261    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 262
 263    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 264    softpipe->pipe.draw_stream_output = softpipe_draw_stream_output;
 265
 266    softpipe->pipe.clear = softpipe_clear;
 267    softpipe->pipe.flush = softpipe_flush_wrapped;
 268
 269    softpipe->pipe.render_condition = softpipe_render_condition;
 270
 271    /*
 272     * Alloc caches for accessing drawing surfaces and textures.
 273     * Must be before quad stage setup!
 274     */
 275    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 276       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 277    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 278
 279    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 280       softpipe->fragment_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 281       if (!softpipe->fragment_tex_cache[i])
 282          goto fail;
 283    }
 284
 285    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 286       softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 287       if (!softpipe->vertex_tex_cache[i])
 288          goto fail;
 289    }
 290
 291    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 292       softpipe->geometry_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 293       if (!softpipe->geometry_tex_cache[i])
 294          goto fail;
 295    }
 296
 297    softpipe->fs_machine = tgsi_exec_machine_create();
 298
 299    /* setup quad rendering stages */
 300    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 301    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 302    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 303    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 304
 305
 306    /*
 307     * Create drawing context and plug our rendering stage into it.
 308     */
 309    softpipe->draw = draw_create(&softpipe->pipe);
 310    if (!softpipe->draw)
 311       goto fail;
 312
 313    draw_texture_samplers(softpipe->draw,
 314                          PIPE_SHADER_VERTEX,
 315                          PIPE_MAX_VERTEX_SAMPLERS,
 316                          (struct tgsi_sampler **)
 317                             softpipe->tgsi.vert_samplers_list);
 318
 319    draw_texture_samplers(softpipe->draw,
 320                          PIPE_SHADER_GEOMETRY,
 321                          PIPE_MAX_GEOMETRY_SAMPLERS,
 322                          (struct tgsi_sampler **)
 323                             softpipe->tgsi.geom_samplers_list);
 324
 325    if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
 326       softpipe->no_rast = TRUE;
 327
 328    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 329    if (!softpipe->vbuf_backend)
 330       goto fail;
 331
 332    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 333    if (!softpipe->vbuf)
 334       goto fail;
 335
 336    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 337    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 338
 339
 340    /* plug in AA line/point stages */
 341    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 342    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 343
 344    /* Do polygon stipple w/ texture map + frag prog? */
 345 #if DO_PSTIPPLE_IN_DRAW_MODULE
 346    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 347 #endif
 348
 349    draw_wide_point_sprites(softpipe->draw, TRUE);
 350
 351    sp_init_surface_functions(softpipe);
 352
 353 #if DO_PSTIPPLE_IN_HELPER_MODULE
 354    /* create the polgon stipple sampler */
 355    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 356 #endif
 357
 358    return &softpipe->pipe;
 359
 360  fail:
 361    softpipe_destroy(&softpipe->pipe);
 362    return NULL;
 363 }