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_video_buffer.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 (softpipe->draw)
  93       draw_destroy( softpipe->draw );
  94
  95    if (softpipe->quad.shade)
  96       softpipe->quad.shade->destroy( softpipe->quad.shade );
  97
  98    if (softpipe->quad.depth_test)
  99       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
 100
 101    if (softpipe->quad.blend)
 102       softpipe->quad.blend->destroy( softpipe->quad.blend );
 103
 104    if (softpipe->quad.pstipple)
 105       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
 106
 107    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 108       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 109       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 110    }
 111
 112    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 113    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 114
 115    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 116       sp_destroy_tex_tile_cache(softpipe->fragment_tex_cache[i]);
 117       pipe_sampler_view_reference(&softpipe->fragment_sampler_views[i], NULL);
 118    }
 119
 120    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 121       sp_destroy_tex_tile_cache(softpipe->vertex_tex_cache[i]);
 122       pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], NULL);
 123    }
 124
 125    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 126       sp_destroy_tex_tile_cache(softpipe->geometry_tex_cache[i]);
 127       pipe_sampler_view_reference(&softpipe->geometry_sampler_views[i], NULL);
 128    }
 129
 130    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 131       uint j;
 132
 133       for (j = 0; j < PIPE_MAX_CONSTANT_BUFFERS; j++) {
 134          if (softpipe->constants[i][j]) {
 135             pipe_resource_reference(&softpipe->constants[i][j], NULL);
 136          }
 137       }
 138    }
 139
 140    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 141       pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
 142    }
 143
 144    tgsi_exec_machine_destroy(softpipe->fs_machine);
 145
 146    FREE( softpipe );
 147 }
 148
 149
 150 /**
 151  * if (the texture is being used as a framebuffer surface)
 152  *    return SP_REFERENCED_FOR_WRITE
 153  * else if (the texture is a bound texture source)
 154  *    return SP_REFERENCED_FOR_READ
 155  * else
 156  *    return SP_UNREFERENCED
 157  */
 158 unsigned int
 159 softpipe_is_resource_referenced( struct pipe_context *pipe,
 160                                  struct pipe_resource *texture,
 161                                  unsigned level, int layer)
 162 {
 163    struct softpipe_context *softpipe = softpipe_context( pipe );
 164    unsigned i;
 165
 166    if (texture->target == PIPE_BUFFER)
 167       return SP_UNREFERENCED;
 168
 169    /* check if any of the bound drawing surfaces are this texture */
 170    if (softpipe->dirty_render_cache) {
 171       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 172          if (softpipe->framebuffer.cbufs[i] &&
 173              softpipe->framebuffer.cbufs[i]->texture == texture) {
 174             return SP_REFERENCED_FOR_WRITE;
 175          }
 176       }
 177       if (softpipe->framebuffer.zsbuf &&
 178           softpipe->framebuffer.zsbuf->texture == texture) {
 179          return SP_REFERENCED_FOR_WRITE;
 180       }
 181    }
 182
 183    /* check if any of the tex_cache textures are this texture */
 184    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 185       if (softpipe->fragment_tex_cache[i] &&
 186           softpipe->fragment_tex_cache[i]->texture == texture)
 187          return SP_REFERENCED_FOR_READ;
 188    }
 189    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 190       if (softpipe->vertex_tex_cache[i] &&
 191           softpipe->vertex_tex_cache[i]->texture == texture)
 192          return SP_REFERENCED_FOR_READ;
 193    }
 194    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 195       if (softpipe->geometry_tex_cache[i] &&
 196           softpipe->geometry_tex_cache[i]->texture == texture)
 197          return SP_REFERENCED_FOR_READ;
 198    }
 199
 200    return SP_UNREFERENCED;
 201 }
 202
 203
 204
 205
 206 static void
 207 softpipe_render_condition( struct pipe_context *pipe,
 208                            struct pipe_query *query,
 209                            uint mode )
 210 {
 211    struct softpipe_context *softpipe = softpipe_context( pipe );
 212
 213    softpipe->render_cond_query = query;
 214    softpipe->render_cond_mode = mode;
 215 }
 216
 217
 218
 219 struct pipe_context *
 220 softpipe_create_context( struct pipe_screen *screen,
 221                          void *priv )
 222 {
 223    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 224    uint i;
 225
 226    util_init_math();
 227
 228 #ifdef PIPE_ARCH_X86
 229    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 230 #else
 231    softpipe->use_sse = FALSE;
 232 #endif
 233
 234    softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
 235    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 236
 237    softpipe->pipe.winsys = NULL;
 238    softpipe->pipe.screen = screen;
 239    softpipe->pipe.destroy = softpipe_destroy;
 240    softpipe->pipe.priv = priv;
 241
 242    /* state setters */
 243    softpipe_init_blend_funcs(&softpipe->pipe);
 244    softpipe_init_clip_funcs(&softpipe->pipe);
 245    softpipe_init_query_funcs( softpipe );
 246    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 247    softpipe_init_sampler_funcs(&softpipe->pipe);
 248    softpipe_init_shader_funcs(&softpipe->pipe);
 249    softpipe_init_streamout_funcs(&softpipe->pipe);
 250    softpipe_init_texture_funcs( &softpipe->pipe );
 251    softpipe_init_vertex_funcs(&softpipe->pipe);
 252
 253    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 254
 255    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 256    softpipe->pipe.draw_stream_output = softpipe_draw_stream_output;
 257
 258    softpipe->pipe.clear = softpipe_clear;
 259    softpipe->pipe.flush = softpipe_flush_wrapped;
 260
 261    softpipe->pipe.render_condition = softpipe_render_condition;
 262
 263    softpipe->pipe.create_video_buffer = vl_video_buffer_create;
 264
 265    /*
 266     * Alloc caches for accessing drawing surfaces and textures.
 267     * Must be before quad stage setup!
 268     */
 269    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 270       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 271    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 272
 273    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
 274       softpipe->fragment_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 275       if (!softpipe->fragment_tex_cache[i])
 276          goto fail;
 277    }
 278
 279    for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
 280       softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 281       if (!softpipe->vertex_tex_cache[i])
 282          goto fail;
 283    }
 284
 285    for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) {
 286       softpipe->geometry_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe );
 287       if (!softpipe->geometry_tex_cache[i])
 288          goto fail;
 289    }
 290
 291    softpipe->fs_machine = tgsi_exec_machine_create();
 292
 293    /* setup quad rendering stages */
 294    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 295    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 296    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 297    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 298
 299
 300    /*
 301     * Create drawing context and plug our rendering stage into it.
 302     */
 303    softpipe->draw = draw_create(&softpipe->pipe);
 304    if (!softpipe->draw)
 305       goto fail;
 306
 307    draw_texture_samplers(softpipe->draw,
 308                          PIPE_SHADER_VERTEX,
 309                          PIPE_MAX_VERTEX_SAMPLERS,
 310                          (struct tgsi_sampler **)
 311                             softpipe->tgsi.vert_samplers_list);
 312
 313    draw_texture_samplers(softpipe->draw,
 314                          PIPE_SHADER_GEOMETRY,
 315                          PIPE_MAX_GEOMETRY_SAMPLERS,
 316                          (struct tgsi_sampler **)
 317                             softpipe->tgsi.geom_samplers_list);
 318
 319    if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
 320       softpipe->no_rast = TRUE;
 321
 322    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 323    if (!softpipe->vbuf_backend)
 324       goto fail;
 325
 326    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 327    if (!softpipe->vbuf)
 328       goto fail;
 329
 330    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 331    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 332
 333
 334    /* plug in AA line/point stages */
 335    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 336    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 337
 338    /* Do polygon stipple w/ texture map + frag prog? */
 339 #if DO_PSTIPPLE_IN_DRAW_MODULE
 340    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 341 #endif
 342
 343    draw_wide_point_sprites(softpipe->draw, TRUE);
 344
 345    sp_init_surface_functions(softpipe);
 346
 347    return &softpipe->pipe;
 348
 349  fail:
 350    softpipe_destroy(&softpipe->pipe);
 351    return NULL;
 352 }