src/mesa/state_tracker/st_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "main/imports.h"
  29 #include "main/accum.h"
  30 #include "main/api_exec.h"
  31 #include "main/context.h"
  32 #include "main/samplerobj.h"
  33 #include "main/shaderobj.h"
  34 #include "main/version.h"
  35 #include "main/vtxfmt.h"
  36 #include "main/hash.h"
  37 #include "program/prog_cache.h"
  38 #include "vbo/vbo.h"
  39 #include "glapi/glapi.h"
  40 #include "st_context.h"
  41 #include "st_debug.h"
  42 #include "st_cb_bitmap.h"
  43 #include "st_cb_blit.h"
  44 #include "st_cb_bufferobjects.h"
  45 #include "st_cb_clear.h"
  46 #include "st_cb_compute.h"
  47 #include "st_cb_condrender.h"
  48 #include "st_cb_copyimage.h"
  49 #include "st_cb_drawpixels.h"
  50 #include "st_cb_rasterpos.h"
  51 #include "st_cb_drawtex.h"
  52 #include "st_cb_eglimage.h"
  53 #include "st_cb_fbo.h"
  54 #include "st_cb_feedback.h"
  55 #include "st_cb_msaa.h"
  56 #include "st_cb_perfmon.h"
  57 #include "st_cb_program.h"
  58 #include "st_cb_queryobj.h"
  59 #include "st_cb_readpixels.h"
  60 #include "st_cb_texture.h"
  61 #include "st_cb_xformfb.h"
  62 #include "st_cb_flush.h"
  63 #include "st_cb_syncobj.h"
  64 #include "st_cb_strings.h"
  65 #include "st_cb_texturebarrier.h"
  66 #include "st_cb_viewport.h"
  67 #include "st_atom.h"
  68 #include "st_draw.h"
  69 #include "st_extensions.h"
  70 #include "st_gen_mipmap.h"
  71 #include "st_pbo.h"
  72 #include "st_program.h"
  73 #include "st_vdpau.h"
  74 #include "st_texture.h"
  75 #include "pipe/p_context.h"
  76 #include "util/u_inlines.h"
  77 #include "util/u_upload_mgr.h"
  78 #include "cso_cache/cso_context.h"
  79
  80
  81 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
  82
  83
  84 /**
  85  * Called via ctx->Driver.Enable()
  86  */
  87 static void st_Enable(struct gl_context * ctx, GLenum cap, GLboolean state)
  88 {
  89    struct st_context *st = st_context(ctx);
  90
  91    switch (cap) {
  92    case GL_DEBUG_OUTPUT:
  93    case GL_DEBUG_OUTPUT_SYNCHRONOUS:
  94       st_update_debug_callback(st);
  95       break;
  96    default:
  97       break;
  98    }
  99 }
 100
 101
 102 /**
 103  * Called via ctx->Driver.QueryMemoryInfo()
 104  */
 105 static void
 106 st_query_memory_info(struct gl_context *ctx, struct gl_memory_info *out)
 107 {
 108    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 109    struct pipe_memory_info info;
 110
 111    assert(screen->query_memory_info);
 112    if (!screen->query_memory_info)
 113       return;
 114
 115    screen->query_memory_info(screen, &info);
 116
 117    out->total_device_memory = info.total_device_memory;
 118    out->avail_device_memory = info.avail_device_memory;
 119    out->total_staging_memory = info.total_staging_memory;
 120    out->avail_staging_memory = info.avail_staging_memory;
 121    out->device_memory_evicted = info.device_memory_evicted;
 122    out->nr_device_memory_evictions = info.nr_device_memory_evictions;
 123 }
 124
 125
 126 /**
 127  * Called via ctx->Driver.UpdateState()
 128  */
 129 void st_invalidate_state(struct gl_context * ctx, GLbitfield new_state)
 130 {
 131    struct st_context *st = st_context(ctx);
 132
 133    /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
 134    if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) {
 135       new_state &= ~_NEW_FRAG_CLAMP;
 136       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 137    }
 138
 139    /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
 140    if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) {
 141       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 142    }
 143
 144    /* Invalidate render and compute pipelines. */
 145    st->dirty.mesa |= new_state;
 146    st->dirty_cp.mesa |= new_state;
 147
 148    /* This is the only core Mesa module we depend upon.
 149     * No longer use swrast, swsetup, tnl.
 150     */
 151    _vbo_InvalidateState(ctx, new_state);
 152 }
 153
 154
 155 static void
 156 st_destroy_context_priv(struct st_context *st)
 157 {
 158    uint shader, i;
 159
 160    st_destroy_atoms( st );
 161    st_destroy_draw( st );
 162    st_destroy_clear(st);
 163    st_destroy_bitmap(st);
 164    st_destroy_drawpix(st);
 165    st_destroy_drawtex(st);
 166    st_destroy_perfmon(st);
 167    st_destroy_pbo_helpers(st);
 168
 169    for (shader = 0; shader < ARRAY_SIZE(st->state.sampler_views); shader++) {
 170       for (i = 0; i < ARRAY_SIZE(st->state.sampler_views[0]); i++) {
 171          pipe_sampler_view_release(st->pipe,
 172                                    &st->state.sampler_views[shader][i]);
 173       }
 174    }
 175
 176    u_upload_destroy(st->uploader);
 177    if (st->indexbuf_uploader) {
 178       u_upload_destroy(st->indexbuf_uploader);
 179    }
 180    if (st->constbuf_uploader) {
 181       u_upload_destroy(st->constbuf_uploader);
 182    }
 183
 184    /* free glDrawPixels cache data */
 185    free(st->drawpix_cache.image);
 186    pipe_resource_reference(&st->drawpix_cache.texture, NULL);
 187
 188    /* free glReadPixels cache data */
 189    st_invalidate_readpix_cache(st);
 190
 191    cso_destroy_context(st->cso_context);
 192    free( st );
 193 }
 194
 195
 196 static struct st_context *
 197 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 198                 const struct st_config_options *options)
 199 {
 200    struct pipe_screen *screen = pipe->screen;
 201    uint i;
 202    struct st_context *st = ST_CALLOC_STRUCT( st_context );
 203
 204    st->options = *options;
 205
 206    ctx->st = st;
 207
 208    st->ctx = ctx;
 209    st->pipe = pipe;
 210
 211    /* XXX: this is one-off, per-screen init: */
 212    st_debug_init();
 213
 214    /* state tracker needs the VBO module */
 215    _vbo_CreateContext(ctx);
 216
 217    /* Initialize render and compute pipelines flags */
 218    st->dirty.mesa = ~0;
 219    st->dirty.st = ~0;
 220    st->dirty_cp.mesa = ~0;
 221    st->dirty_cp.st = ~0;
 222
 223    /* Create upload manager for vertex data for glBitmap, glDrawPixels,
 224     * glClear, etc.
 225     */
 226    st->uploader = u_upload_create(st->pipe, 65536, PIPE_BIND_VERTEX_BUFFER,
 227                                   PIPE_USAGE_STREAM);
 228
 229    if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
 230       st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024,
 231                                               PIPE_BIND_INDEX_BUFFER,
 232                                               PIPE_USAGE_STREAM);
 233    }
 234
 235    if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS))
 236       st->constbuf_uploader = u_upload_create(pipe, 128 * 1024,
 237                                               PIPE_BIND_CONSTANT_BUFFER,
 238                                               PIPE_USAGE_STREAM);
 239
 240    st->cso_context = cso_create_context(pipe);
 241
 242    st_init_atoms( st );
 243    st_init_clear(st);
 244    st_init_draw( st );
 245    st_init_pbo_helpers(st);
 246
 247    /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
 248    if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
 249       st->internal_target = PIPE_TEXTURE_2D;
 250    else
 251       st->internal_target = PIPE_TEXTURE_RECT;
 252
 253    /* Setup vertex element info for 'struct st_util_vertex'.
 254     */
 255    {
 256       const unsigned slot = cso_get_aux_vertex_buffer_slot(st->cso_context);
 257
 258       /* If this assertion ever fails all state tracker calls to
 259        * cso_get_aux_vertex_buffer_slot() should be audited.  This
 260        * particular call would have to be moved to just before each
 261        * drawing call.
 262        */
 263       assert(slot == 0);
 264
 265       STATIC_ASSERT(sizeof(struct st_util_vertex) == 9 * sizeof(float));
 266
 267       memset(&st->util_velems, 0, sizeof(st->util_velems));
 268       st->util_velems[0].src_offset = 0;
 269       st->util_velems[0].vertex_buffer_index = slot;
 270       st->util_velems[0].src_format = PIPE_FORMAT_R32G32B32_FLOAT;
 271       st->util_velems[1].src_offset = 3 * sizeof(float);
 272       st->util_velems[1].vertex_buffer_index = slot;
 273       st->util_velems[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 274       st->util_velems[2].src_offset = 7 * sizeof(float);
 275       st->util_velems[2].vertex_buffer_index = slot;
 276       st->util_velems[2].src_format = PIPE_FORMAT_R32G32_FLOAT;
 277    }
 278
 279    /* we want all vertex data to be placed in buffer objects */
 280    vbo_use_buffer_objects(ctx);
 281
 282
 283    /* make sure that no VBOs are left mapped when we're drawing. */
 284    vbo_always_unmap_buffers(ctx);
 285
 286    /* Need these flags:
 287     */
 288    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 289
 290    ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 291
 292    st->has_stencil_export =
 293       screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
 294    st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
 295    st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
 296                                               PIPE_TEXTURE_2D, 0,
 297                                               PIPE_BIND_SAMPLER_VIEW);
 298    st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
 299                                               PIPE_TEXTURE_2D, 0,
 300                                               PIPE_BIND_SAMPLER_VIEW);
 301    st->prefer_blit_based_texture_transfer = screen->get_param(screen,
 302                               PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
 303    st->force_persample_in_shader =
 304       screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
 305       !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
 306    st->has_shareable_shaders = screen->get_param(screen,
 307                                                  PIPE_CAP_SHAREABLE_SHADERS);
 308    st->needs_texcoord_semantic =
 309       screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
 310    st->apply_texture_swizzle_to_border_color =
 311       !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
 312          (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
 313           PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
 314    st->has_time_elapsed =
 315       screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
 316    st->has_half_float_packing =
 317       screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
 318    st->has_multi_draw_indirect =
 319       screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);
 320
 321    /* GL limits and extensions */
 322    st_init_limits(st->pipe->screen, &ctx->Const, &ctx->Extensions);
 323    st_init_extensions(st->pipe->screen, &ctx->Const,
 324                       &ctx->Extensions, &st->options, ctx->Mesa_DXTn);
 325
 326    if (st_have_perfmon(st)) {
 327       ctx->Extensions.AMD_performance_monitor = GL_TRUE;
 328    }
 329
 330    /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
 331    if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
 332       if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
 333          st->clamp_vert_color_in_shader = GL_TRUE;
 334       }
 335
 336       if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
 337          st->clamp_frag_color_in_shader = GL_TRUE;
 338       }
 339
 340       /* For drivers which cannot do color clamping, it's better to just
 341        * disable ARB_color_buffer_float in the core profile, because
 342        * the clamping is deprecated there anyway. */
 343       if (ctx->API == API_OPENGL_CORE &&
 344           (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
 345          st->clamp_vert_color_in_shader = GL_FALSE;
 346          st->clamp_frag_color_in_shader = GL_FALSE;
 347          ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
 348       }
 349    }
 350
 351    /* called after _mesa_create_context/_mesa_init_point, fix default user
 352     * settable max point size up
 353     */
 354    ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
 355                              ctx->Const.MaxPointSizeAA);
 356    /* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
 357    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat = !st->has_shader_model3;
 358
 359    if (!ctx->Extensions.ARB_gpu_shader5) {
 360       for (i = 0; i < MESA_SHADER_STAGES; i++)
 361          ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
 362    }
 363
 364    /* Set which shader types can be compiled at link time. */
 365    st->shader_has_one_variant[MESA_SHADER_VERTEX] =
 366          st->has_shareable_shaders &&
 367          !st->clamp_vert_color_in_shader;
 368
 369    st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
 370          st->has_shareable_shaders &&
 371          !st->clamp_frag_color_in_shader &&
 372          !st->force_persample_in_shader;
 373
 374    st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
 375    st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
 376    st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;
 377    st->shader_has_one_variant[MESA_SHADER_COMPUTE] = st->has_shareable_shaders;
 378
 379    _mesa_compute_version(ctx);
 380
 381    if (ctx->Version == 0) {
 382       /* This can happen when a core profile was requested, but the driver
 383        * does not support some features of GL 3.1 or later.
 384        */
 385       st_destroy_context_priv(st);
 386       return NULL;
 387    }
 388
 389    _mesa_initialize_dispatch_tables(ctx);
 390    _mesa_initialize_vbo_vtxfmt(ctx);
 391
 392    return st;
 393 }
 394
 395 static void st_init_driver_flags(struct gl_driver_flags *f)
 396 {
 397    f->NewArray = ST_NEW_VERTEX_ARRAYS;
 398    f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
 399    f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
 400    f->NewDefaultTessLevels = ST_NEW_TESS_STATE;
 401    f->NewTextureBuffer = ST_NEW_SAMPLER_VIEWS;
 402    f->NewAtomicBuffer = ST_NEW_ATOMIC_BUFFER;
 403    f->NewShaderStorageBuffer = ST_NEW_STORAGE_BUFFER;
 404    f->NewImageUnits = ST_NEW_IMAGE_UNITS;
 405 }
 406
 407 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
 408                                      const struct gl_config *visual,
 409                                      struct st_context *share,
 410                                      const struct st_config_options *options)
 411 {
 412    struct gl_context *ctx;
 413    struct gl_context *shareCtx = share ? share->ctx : NULL;
 414    struct dd_function_table funcs;
 415    struct st_context *st;
 416
 417    memset(&funcs, 0, sizeof(funcs));
 418    st_init_driver_functions(pipe->screen, &funcs);
 419
 420    ctx = calloc(1, sizeof(struct gl_context));
 421    if (!ctx)
 422       return NULL;
 423
 424    if (!_mesa_initialize_context(ctx, api, visual, shareCtx, &funcs)) {
 425       free(ctx);
 426       return NULL;
 427    }
 428
 429    st_init_driver_flags(&ctx->DriverFlags);
 430
 431    /* XXX: need a capability bit in gallium to query if the pipe
 432     * driver prefers DP4 or MUL/MAD for vertex transformation.
 433     */
 434    if (debug_get_option_mesa_mvp_dp4())
 435       ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 436
 437    st = st_create_context_priv(ctx, pipe, options);
 438    if (!st) {
 439       _mesa_destroy_context(ctx);
 440    }
 441
 442    return st;
 443 }
 444
 445
 446 /**
 447  * Callback to release the sampler view attached to a texture object.
 448  * Called by _mesa_HashWalk().
 449  */
 450 static void
 451 destroy_tex_sampler_cb(GLuint id, void *data, void *userData)
 452 {
 453    struct gl_texture_object *texObj = (struct gl_texture_object *) data;
 454    struct st_context *st = (struct st_context *) userData;
 455
 456    st_texture_release_sampler_view(st, st_texture_object(texObj));
 457 }
 458
 459 void st_destroy_context( struct st_context *st )
 460 {
 461    struct pipe_context *pipe = st->pipe;
 462    struct gl_context *ctx = st->ctx;
 463    GLuint i;
 464
 465    _mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
 466
 467    st_reference_fragprog(st, &st->fp, NULL);
 468    st_reference_geomprog(st, &st->gp, NULL);
 469    st_reference_vertprog(st, &st->vp, NULL);
 470    st_reference_tesscprog(st, &st->tcp, NULL);
 471    st_reference_tesseprog(st, &st->tep, NULL);
 472    st_reference_compprog(st, &st->cp, NULL);
 473
 474    /* release framebuffer surfaces */
 475    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 476       pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
 477    }
 478    pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
 479    pipe_sampler_view_reference(&st->pixel_xfer.pixelmap_sampler_view, NULL);
 480    pipe_resource_reference(&st->pixel_xfer.pixelmap_texture, NULL);
 481
 482    _vbo_DestroyContext(ctx);
 483
 484    st_destroy_program_variants(st);
 485
 486    _mesa_free_context_data(ctx);
 487
 488    /* This will free the st_context too, so 'st' must not be accessed
 489     * afterwards. */
 490    st_destroy_context_priv(st);
 491    st = NULL;
 492
 493    pipe->destroy( pipe );
 494
 495    free(ctx);
 496 }
 497
 498 static void
 499 st_emit_string_marker(struct gl_context *ctx, const GLchar *string, GLsizei len)
 500 {
 501    struct st_context *st = ctx->st;
 502    st->pipe->emit_string_marker(st->pipe, string, len);
 503 }
 504
 505 void st_init_driver_functions(struct pipe_screen *screen,
 506                               struct dd_function_table *functions)
 507 {
 508    _mesa_init_shader_object_functions(functions);
 509    _mesa_init_sampler_object_functions(functions);
 510
 511    st_init_blit_functions(functions);
 512    st_init_bufferobject_functions(screen, functions);
 513    st_init_clear_functions(functions);
 514    st_init_bitmap_functions(functions);
 515    st_init_copy_image_functions(functions);
 516    st_init_drawpixels_functions(functions);
 517    st_init_rasterpos_functions(functions);
 518
 519    st_init_drawtex_functions(functions);
 520
 521    st_init_eglimage_functions(functions);
 522
 523    st_init_fbo_functions(functions);
 524    st_init_feedback_functions(functions);
 525    st_init_msaa_functions(functions);
 526    st_init_perfmon_functions(functions);
 527    st_init_program_functions(functions);
 528    st_init_query_functions(functions);
 529    st_init_cond_render_functions(functions);
 530    st_init_readpixels_functions(functions);
 531    st_init_texture_functions(functions);
 532    st_init_texture_barrier_functions(functions);
 533    st_init_flush_functions(screen, functions);
 534    st_init_string_functions(functions);
 535    st_init_viewport_functions(functions);
 536    st_init_compute_functions(functions);
 537
 538    st_init_xformfb_functions(functions);
 539    st_init_syncobj_functions(functions);
 540
 541    st_init_vdpau_functions(functions);
 542
 543    if (screen->get_param(screen, PIPE_CAP_STRING_MARKER))
 544       functions->EmitStringMarker = st_emit_string_marker;
 545
 546    functions->Enable = st_Enable;
 547    functions->UpdateState = st_invalidate_state;
 548    functions->QueryMemoryInfo = st_query_memory_info;
 549 }