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