src/gallium/drivers/softpipe/sp_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_math.h"
  37 #include "util/u_memory.h"
  38 #include "util/u_pstipple.h"
  39 #include "util/u_inlines.h"
  40 #include "util/u_upload_mgr.h"
  41 #include "tgsi/tgsi_exec.h"
  42 #include "sp_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 #include "sp_tex_sample.h"
  55 #include "sp_image.h"
  56
  57 static void
  58 softpipe_destroy( struct pipe_context *pipe )
  59 {
  60    struct softpipe_context *softpipe = softpipe_context( pipe );
  61    uint i, sh;
  62
  63 #if DO_PSTIPPLE_IN_HELPER_MODULE
  64    if (softpipe->pstipple.sampler)
  65       pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
  66
  67    pipe_resource_reference(&softpipe->pstipple.texture, NULL);
  68    pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
  69 #endif
  70
  71    if (softpipe->blitter) {
  72       util_blitter_destroy(softpipe->blitter);
  73    }
  74
  75    if (softpipe->draw)
  76       draw_destroy( softpipe->draw );
  77
  78    if (softpipe->quad.shade)
  79       softpipe->quad.shade->destroy( softpipe->quad.shade );
  80
  81    if (softpipe->quad.depth_test)
  82       softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
  83
  84    if (softpipe->quad.blend)
  85       softpipe->quad.blend->destroy( softpipe->quad.blend );
  86
  87    if (softpipe->quad.pstipple)
  88       softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
  89
  90    if (softpipe->pipe.stream_uploader)
  91       u_upload_destroy(softpipe->pipe.stream_uploader);
  92
  93    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  94       sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
  95       pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
  96    }
  97
  98    sp_destroy_tile_cache(softpipe->zsbuf_cache);
  99    pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
 100
 101    for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
 102       for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
 103          sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
 104          pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
 105       }
 106    }
 107
 108    for (sh = 0; sh < ARRAY_SIZE(softpipe->constants); sh++) {
 109       for (i = 0; i < ARRAY_SIZE(softpipe->constants[0]); i++) {
 110          if (softpipe->constants[sh][i]) {
 111             pipe_resource_reference(&softpipe->constants[sh][i], NULL);
 112          }
 113       }
 114    }
 115
 116    for (i = 0; i < softpipe->num_vertex_buffers; i++) {
 117       pipe_vertex_buffer_unreference(&softpipe->vertex_buffer[i]);
 118    }
 119
 120    tgsi_exec_machine_destroy(softpipe->fs_machine);
 121
 122    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 123       FREE(softpipe->tgsi.sampler[i]);
 124       FREE(softpipe->tgsi.image[i]);
 125       FREE(softpipe->tgsi.buffer[i]);
 126    }
 127
 128    FREE( softpipe );
 129 }
 130
 131
 132 /**
 133  * if (the texture is being used as a framebuffer surface)
 134  *    return SP_REFERENCED_FOR_WRITE
 135  * else if (the texture is a bound texture source)
 136  *    return SP_REFERENCED_FOR_READ
 137  * else
 138  *    return SP_UNREFERENCED
 139  */
 140 unsigned int
 141 softpipe_is_resource_referenced( struct pipe_context *pipe,
 142                                  struct pipe_resource *texture,
 143                                  unsigned level, int layer)
 144 {
 145    struct softpipe_context *softpipe = softpipe_context( pipe );
 146    unsigned i, sh;
 147
 148    if (texture->target == PIPE_BUFFER)
 149       return SP_UNREFERENCED;
 150
 151    /* check if any of the bound drawing surfaces are this texture */
 152    if (softpipe->dirty_render_cache) {
 153       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
 154          if (softpipe->framebuffer.cbufs[i] &&
 155              softpipe->framebuffer.cbufs[i]->texture == texture) {
 156             return SP_REFERENCED_FOR_WRITE;
 157          }
 158       }
 159       if (softpipe->framebuffer.zsbuf &&
 160           softpipe->framebuffer.zsbuf->texture == texture) {
 161          return SP_REFERENCED_FOR_WRITE;
 162       }
 163    }
 164
 165    /* check if any of the tex_cache textures are this texture */
 166    for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
 167       for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
 168          if (softpipe->tex_cache[sh][i] &&
 169              softpipe->tex_cache[sh][i]->texture == texture)
 170             return SP_REFERENCED_FOR_READ;
 171       }
 172    }
 173
 174    return SP_UNREFERENCED;
 175 }
 176
 177
 178
 179
 180 static void
 181 softpipe_render_condition(struct pipe_context *pipe,
 182                           struct pipe_query *query,
 183                           bool condition,
 184                           enum pipe_render_cond_flag mode)
 185 {
 186    struct softpipe_context *softpipe = softpipe_context( pipe );
 187
 188    softpipe->render_cond_query = query;
 189    softpipe->render_cond_mode = mode;
 190    softpipe->render_cond_cond = condition;
 191 }
 192
 193
 194
 195 struct pipe_context *
 196 softpipe_create_context(struct pipe_screen *screen,
 197                         void *priv, unsigned flags)
 198 {
 199    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 200    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
 201    uint i, sh;
 202
 203    util_init_math();
 204
 205    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 206       softpipe->tgsi.sampler[i] = sp_create_tgsi_sampler();
 207    }
 208
 209    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 210       softpipe->tgsi.image[i] = sp_create_tgsi_image();
 211    }
 212
 213    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 214       softpipe->tgsi.buffer[i] = sp_create_tgsi_buffer();
 215    }
 216
 217    softpipe->pipe.screen = screen;
 218    softpipe->pipe.destroy = softpipe_destroy;
 219    softpipe->pipe.priv = priv;
 220
 221    /* state setters */
 222    softpipe_init_blend_funcs(&softpipe->pipe);
 223    softpipe_init_clip_funcs(&softpipe->pipe);
 224    softpipe_init_query_funcs( softpipe );
 225    softpipe_init_rasterizer_funcs(&softpipe->pipe);
 226    softpipe_init_sampler_funcs(&softpipe->pipe);
 227    softpipe_init_shader_funcs(&softpipe->pipe);
 228    softpipe_init_streamout_funcs(&softpipe->pipe);
 229    softpipe_init_texture_funcs( &softpipe->pipe );
 230    softpipe_init_vertex_funcs(&softpipe->pipe);
 231    softpipe_init_image_funcs(&softpipe->pipe);
 232
 233    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
 234
 235    softpipe->pipe.draw_vbo = softpipe_draw_vbo;
 236
 237    softpipe->pipe.launch_grid = softpipe_launch_grid;
 238
 239    softpipe->pipe.clear = softpipe_clear;
 240    softpipe->pipe.flush = softpipe_flush_wrapped;
 241    softpipe->pipe.texture_barrier = softpipe_texture_barrier;
 242    softpipe->pipe.memory_barrier = softpipe_memory_barrier;
 243    softpipe->pipe.render_condition = softpipe_render_condition;
 244
 245    /*
 246     * Alloc caches for accessing drawing surfaces and textures.
 247     * Must be before quad stage setup!
 248     */
 249    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
 250       softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
 251    softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
 252
 253    /* Allocate texture caches */
 254    for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
 255       for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
 256          softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
 257          if (!softpipe->tex_cache[sh][i])
 258             goto fail;
 259       }
 260    }
 261
 262    softpipe->fs_machine = tgsi_exec_machine_create(PIPE_SHADER_FRAGMENT);
 263
 264    /* setup quad rendering stages */
 265    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 266    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 267    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 268    softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
 269
 270    softpipe->pipe.stream_uploader = u_upload_create_default(&softpipe->pipe);
 271    if (!softpipe->pipe.stream_uploader)
 272       goto fail;
 273    softpipe->pipe.const_uploader = softpipe->pipe.stream_uploader;
 274
 275    /*
 276     * Create drawing context and plug our rendering stage into it.
 277     */
 278    if (sp_screen->use_llvm)
 279       softpipe->draw = draw_create(&softpipe->pipe);
 280    else
 281       softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
 282    if (!softpipe->draw)
 283       goto fail;
 284
 285    draw_texture_sampler(softpipe->draw,
 286                         PIPE_SHADER_VERTEX,
 287                         (struct tgsi_sampler *)
 288                            softpipe->tgsi.sampler[PIPE_SHADER_VERTEX]);
 289
 290    draw_texture_sampler(softpipe->draw,
 291                         PIPE_SHADER_GEOMETRY,
 292                         (struct tgsi_sampler *)
 293                            softpipe->tgsi.sampler[PIPE_SHADER_GEOMETRY]);
 294
 295    draw_image(softpipe->draw,
 296               PIPE_SHADER_VERTEX,
 297               (struct tgsi_image *)
 298               softpipe->tgsi.image[PIPE_SHADER_VERTEX]);
 299
 300    draw_image(softpipe->draw,
 301               PIPE_SHADER_GEOMETRY,
 302               (struct tgsi_image *)
 303               softpipe->tgsi.image[PIPE_SHADER_GEOMETRY]);
 304
 305    draw_buffer(softpipe->draw,
 306               PIPE_SHADER_VERTEX,
 307               (struct tgsi_buffer *)
 308               softpipe->tgsi.buffer[PIPE_SHADER_VERTEX]);
 309
 310    draw_buffer(softpipe->draw,
 311               PIPE_SHADER_GEOMETRY,
 312               (struct tgsi_buffer *)
 313               softpipe->tgsi.buffer[PIPE_SHADER_GEOMETRY]);
 314
 315    softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
 316    if (!softpipe->vbuf_backend)
 317       goto fail;
 318
 319    softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
 320    if (!softpipe->vbuf)
 321       goto fail;
 322
 323    draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
 324    draw_set_render(softpipe->draw, softpipe->vbuf_backend);
 325
 326    softpipe->blitter = util_blitter_create(&softpipe->pipe);
 327    if (!softpipe->blitter) {
 328       goto fail;
 329    }
 330
 331    /* must be done before installing Draw stages */
 332    util_blitter_cache_all_shaders(softpipe->blitter);
 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 #if DO_PSTIPPLE_IN_HELPER_MODULE
 348    /* create the polgon stipple sampler */
 349    softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
 350 #endif
 351
 352    return &softpipe->pipe;
 353
 354  fail:
 355    softpipe_destroy(&softpipe->pipe);
 356    return NULL;
 357 }