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