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