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 "vl/vl_decoder.h"
  42 #include "vl/vl_video_buffer.h"
  43 #include "sp_clear.h"
  44 #include "sp_context.h"
  45 #include "sp_flush.h"
  46 #include "sp_prim_vbuf.h"
  47 #include "sp_state.h"
  48 #include "sp_surface.h"
  49 #include "sp_tile_cache.h"
  50 #include "sp_tex_tile_cache.h"
  51 #include "sp_texture.h"
  52 #include "sp_query.h"
  53 #include "sp_screen.h"
  54
  55
  56 /**
  57  * Map any drawing surfaces which aren't already mapped
  58  */
  59 void
  60 softpipe_map_transfers(struct softpipe_context *sp)
  61 {
  62    unsigned i;
  63
  64    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  65       sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
  66    }
  67
  68    sp_tile_cache_map_transfers(sp->zsbuf_cache);
  69 }
  70
  71
  72 /**
  73  * Unmap any mapped drawing surfaces
  74  */
  75 void
  76 softpipe_unmap_transfers(struct softpipe_context *sp)
  77 {
  78    uint i;
  79
  80    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
  81       sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
  82    }
  83
  84    sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
  85 }
  86
  87
  88 static void
  89 softpipe_destroy( struct pipe_context *pipe )
  90 {
  91    struct softpipe_context *softpipe = softpipe_context( pipe );
  92    uint i, sh;
  93
  94 #if DO_PSTIPPLE_IN_HELPER_MODULE
  95    if (softpipe->pstipple.sampler)
  96       pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
  97
  98    pipe_resource_reference(&softpipe->pstipple.texture, NULL);
  99    pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
 100 #endif
 101
 102    if (softpipe->draw)
 103       draw_destroy( softpipe->draw );
 104
 105    if (softpipe->quad.shade)
 106       softpipe->quad.shade->destroy( softpipe->quad.shade );
 107
 108    if (softpipe->quad.depth_test)
 109       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
 110
 111    if (softpipe->quad.blend)
 112       softpipe->quad.blend->destroy( softpipe->quad.blend );
 113
 114    if (softpipe->quad.pstipple)
 115       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
 116
 117    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 118       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
 119       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
 120    }
 121
 122    sp_destroy_tile_cache(softpipe->zsbuf_cache);
 123    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 124
 125    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 126       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 127          sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
 128          pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
 129       }
 130    }
 131
 132    for (sh = 0; sh < Elements(softpipe->constants); sh++) {
 133       for (i = 0; i < Elements(softpipe->constants[0]); i++) {
 134          if (softpipe->constants[sh][i]) {
 135             pipe_resource_reference(&softpipe->constants[sh][i], 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, sh;
 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 (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 185       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 186          if (softpipe->tex_cache[sh][i] &&
 187              softpipe->tex_cache[sh][i]->texture == texture)
 188             return SP_REFERENCED_FOR_READ;
 189       }
 190    }
 191
 192    return SP_UNREFERENCED;
 193 }
 194
 195
 196
 197
 198 static void
 199 softpipe_render_condition( struct pipe_context *pipe,
 200                            struct pipe_query *query,
 201                            uint mode )
 202 {
 203    struct softpipe_context *softpipe = softpipe_context( pipe );
 204
 205    softpipe->render_cond_query = query;
 206    softpipe->render_cond_mode = mode;
 207 }
 208
 209
 210
 211 struct pipe_context *
 212 softpipe_create_context( struct pipe_screen *screen,
 213                          void *priv )
 214 {
 215    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 216    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 217    uint i, sh;
 218
 219    /* Check since we have arrays[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS] */
 220    STATIC_ASSERT(PIPE_MAX_SAMPLERS == PIPE_MAX_VERTEX_SAMPLERS);
 221    STATIC_ASSERT(PIPE_MAX_SAMPLERS == PIPE_MAX_GEOMETRY_SAMPLERS);
 222
 223    util_init_math();
 224
 225    softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
 226    softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
 227
 228    softpipe->pipe.screen = screen;
 229    softpipe->pipe.destroy = softpipe_destroy;
 230    softpipe->pipe.priv = priv;
 231
 232    /* state setters */
 233    softpipe_init_blend_funcs(&softpipe->pipe);
 234    softpipe_init_clip_funcs(&softpipe->pipe);
 235    softpipe_init_query_funcs( softpipe );
 236    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 237    softpipe_init_sampler_funcs(&softpipe->pipe);
 238    softpipe_init_shader_funcs(&softpipe->pipe);
 239    softpipe_init_streamout_funcs(&softpipe->pipe);
 240    softpipe_init_texture_funcs( &softpipe->pipe );
 241    softpipe_init_vertex_funcs(&softpipe->pipe);
 242
 243    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 244
 245    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 246
 247    softpipe->pipe.clear = softpipe_clear;
 248    softpipe->pipe.flush = softpipe_flush_wrapped;
 249
 250    softpipe->pipe.render_condition = softpipe_render_condition;
 251
 252    softpipe->pipe.create_video_decoder = vl_create_decoder;
 253    softpipe->pipe.create_video_buffer = vl_video_buffer_create;
 254
 255    /*
 256     * Alloc caches for accessing drawing surfaces and textures.
 257     * Must be before quad stage setup!
 258     */
 259    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 260       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 261    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 262
 263    /* Allocate texture caches */
 264    for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
 265       for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
 266          softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
 267          if (!softpipe->tex_cache[sh][i])
 268             goto fail;
 269       }
 270    }
 271
 272    softpipe->fs_machine = tgsi_exec_machine_create();
 273
 274    /* setup quad rendering stages */
 275    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 276    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 277    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 278    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 279
 280
 281    /*
 282     * Create drawing context and plug our rendering stage into it.
 283     */
 284    if (sp_screen->use_llvm)
 285       softpipe->draw = draw_create(&softpipe->pipe);
 286    else
 287       softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
 288    if (!softpipe->draw)
 289       goto fail;
 290
 291    draw_texture_samplers(softpipe->draw,
 292                          PIPE_SHADER_VERTEX,
 293                          PIPE_MAX_VERTEX_SAMPLERS,
 294                          (struct tgsi_sampler **)
 295                             softpipe->tgsi.samplers_list[PIPE_SHADER_VERTEX]);
 296
 297    draw_texture_samplers(softpipe->draw,
 298                          PIPE_SHADER_GEOMETRY,
 299                          PIPE_MAX_GEOMETRY_SAMPLERS,
 300                          (struct tgsi_sampler **)
 301                             softpipe->tgsi.samplers_list[PIPE_SHADER_GEOMETRY]);
 302
 303    if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
 304       softpipe->no_rast = TRUE;
 305
 306    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 307    if (!softpipe->vbuf_backend)
 308       goto fail;
 309
 310    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 311    if (!softpipe->vbuf)
 312       goto fail;
 313
 314    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 315    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 316
 317
 318    /* plug in AA line/point stages */
 319    draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
 320    draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
 321
 322    /* Do polygon stipple w/ texture map + frag prog? */
 323 #if DO_PSTIPPLE_IN_DRAW_MODULE
 324    draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
 325 #endif
 326
 327    draw_wide_point_sprites(softpipe->draw, TRUE);
 328
 329    sp_init_surface_functions(softpipe);
 330
 331 #if DO_PSTIPPLE_IN_HELPER_MODULE
 332    /* create the polgon stipple sampler */
 333    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 334 #endif
 335
 336    return &softpipe->pipe;
 337
 338  fail:
 339    softpipe_destroy(&softpipe->pipe);
 340    return NULL;
 341 }