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       st_enable_debug_output(st, state);
  94       break;
  95    default:
  96       break;
  97    }
  98 }
  99
 100
 101 /**
 102  * Called via ctx->Driver.QueryMemoryInfo()
 103  */
 104 static void
 105 st_query_memory_info(struct gl_context *ctx, struct gl_memory_info *out)
 106 {
 107    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 108    struct pipe_memory_info info;
 109
 110    assert(screen->query_memory_info);
 111    if (!screen->query_memory_info)
 112       return;
 113
 114    screen->query_memory_info(screen, &info);
 115
 116    out->total_device_memory = info.total_device_memory;
 117    out->avail_device_memory = info.avail_device_memory;
 118    out->total_staging_memory = info.total_staging_memory;
 119    out->avail_staging_memory = info.avail_staging_memory;
 120    out->device_memory_evicted = info.device_memory_evicted;
 121    out->nr_device_memory_evictions = info.nr_device_memory_evictions;
 122 }
 123
 124
 125 /**
 126  * Called via ctx->Driver.UpdateState()
 127  */
 128 void st_invalidate_state(struct gl_context * ctx, GLbitfield new_state)
 129 {
 130    struct st_context *st = st_context(ctx);
 131
 132    /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
 133    if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) {
 134       new_state &= ~_NEW_FRAG_CLAMP;
 135       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 136    }
 137
 138    /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
 139    if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) {
 140       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 141    }
 142
 143    /* Invalidate render and compute pipelines. */
 144    st->dirty.mesa |= new_state;
 145    st->dirty_cp.mesa |= new_state;
 146
 147    /* This is the only core Mesa module we depend upon.
 148     * No longer use swrast, swsetup, tnl.
 149     */
 150    _vbo_InvalidateState(ctx, new_state);
 151 }
 152
 153
 154 static void
 155 st_destroy_context_priv(struct st_context *st)
 156 {
 157    uint shader, i;
 158
 159    st_destroy_atoms( st );
 160    st_destroy_draw( st );
 161    st_destroy_clear(st);
 162    st_destroy_bitmap(st);
 163    st_destroy_drawpix(st);
 164    st_destroy_drawtex(st);
 165    st_destroy_perfmon(st);
 166    st_destroy_pbo_helpers(st);
 167
 168    for (shader = 0; shader < ARRAY_SIZE(st->state.sampler_views); shader++) {
 169       for (i = 0; i < ARRAY_SIZE(st->state.sampler_views[0]); i++) {
 170          pipe_sampler_view_release(st->pipe,
 171                                    &st->state.sampler_views[shader][i]);
 172       }
 173    }
 174
 175    u_upload_destroy(st->uploader);
 176    if (st->indexbuf_uploader) {
 177       u_upload_destroy(st->indexbuf_uploader);
 178    }
 179    if (st->constbuf_uploader) {
 180       u_upload_destroy(st->constbuf_uploader);
 181    }
 182
 183    /* free glDrawPixels cache data */
 184    free(st->drawpix_cache.image);
 185    pipe_resource_reference(&st->drawpix_cache.texture, NULL);
 186
 187    cso_destroy_context(st->cso_context);
 188    free( st );
 189 }
 190
 191
 192 static struct st_context *
 193 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 194                 const struct st_config_options *options)
 195 {
 196    struct pipe_screen *screen = pipe->screen;
 197    uint i;
 198    struct st_context *st = ST_CALLOC_STRUCT( st_context );
 199
 200    st->options = *options;
 201
 202    ctx->st = st;
 203
 204    st->ctx = ctx;
 205    st->pipe = pipe;
 206
 207    /* XXX: this is one-off, per-screen init: */
 208    st_debug_init();
 209
 210    /* state tracker needs the VBO module */
 211    _vbo_CreateContext(ctx);
 212
 213    /* Initialize render and compute pipelines flags */
 214    st->dirty.mesa = ~0;
 215    st->dirty.st = ~0;
 216    st->dirty_cp.mesa = ~0;
 217    st->dirty_cp.st = ~0;
 218
 219    /* Create upload manager for vertex data for glBitmap, glDrawPixels,
 220     * glClear, etc.
 221     */
 222    st->uploader = u_upload_create(st->pipe, 65536, PIPE_BIND_VERTEX_BUFFER,
 223                                   PIPE_USAGE_STREAM);
 224
 225    if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
 226       st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024,
 227                                               PIPE_BIND_INDEX_BUFFER,
 228                                               PIPE_USAGE_STREAM);
 229    }
 230
 231    if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS))
 232       st->constbuf_uploader = u_upload_create(pipe, 128 * 1024,
 233                                               PIPE_BIND_CONSTANT_BUFFER,
 234                                               PIPE_USAGE_STREAM);
 235
 236    st->cso_context = cso_create_context(pipe);
 237
 238    st_init_atoms( st );
 239    st_init_clear(st);
 240    st_init_draw( st );
 241    st_init_pbo_helpers(st);
 242
 243    /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
 244    if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
 245       st->internal_target = PIPE_TEXTURE_2D;
 246    else
 247       st->internal_target = PIPE_TEXTURE_RECT;
 248
 249    /* Setup vertex element info for 'struct st_util_vertex'.
 250     */
 251    {
 252       const unsigned slot = cso_get_aux_vertex_buffer_slot(st->cso_context);
 253
 254       /* If this assertion ever fails all state tracker calls to
 255        * cso_get_aux_vertex_buffer_slot() should be audited.  This
 256        * particular call would have to be moved to just before each
 257        * drawing call.
 258        */
 259       assert(slot == 0);
 260
 261       STATIC_ASSERT(sizeof(struct st_util_vertex) == 9 * sizeof(float));
 262
 263       memset(&st->util_velems, 0, sizeof(st->util_velems));
 264       st->util_velems[0].src_offset = 0;
 265       st->util_velems[0].vertex_buffer_index = slot;
 266       st->util_velems[0].src_format = PIPE_FORMAT_R32G32B32_FLOAT;
 267       st->util_velems[1].src_offset = 3 * sizeof(float);
 268       st->util_velems[1].vertex_buffer_index = slot;
 269       st->util_velems[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 270       st->util_velems[2].src_offset = 7 * sizeof(float);
 271       st->util_velems[2].vertex_buffer_index = slot;
 272       st->util_velems[2].src_format = PIPE_FORMAT_R32G32_FLOAT;
 273    }
 274
 275    /* we want all vertex data to be placed in buffer objects */
 276    vbo_use_buffer_objects(ctx);
 277
 278
 279    /* make sure that no VBOs are left mapped when we're drawing. */
 280    vbo_always_unmap_buffers(ctx);
 281
 282    /* Need these flags:
 283     */
 284    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 285
 286    ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 287
 288    st->has_stencil_export =
 289       screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
 290    st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
 291    st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
 292                                               PIPE_TEXTURE_2D, 0,
 293                                               PIPE_BIND_SAMPLER_VIEW);
 294    st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
 295                                               PIPE_TEXTURE_2D, 0,
 296                                               PIPE_BIND_SAMPLER_VIEW);
 297    st->prefer_blit_based_texture_transfer = screen->get_param(screen,
 298                               PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
 299    st->force_persample_in_shader =
 300       screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
 301       !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
 302    st->has_shareable_shaders = screen->get_param(screen,
 303                                                  PIPE_CAP_SHAREABLE_SHADERS);
 304    st->needs_texcoord_semantic =
 305       screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
 306    st->apply_texture_swizzle_to_border_color =
 307       !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
 308          (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
 309           PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
 310    st->has_time_elapsed =
 311       screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
 312    st->has_half_float_packing =
 313       screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
 314    st->has_multi_draw_indirect =
 315       screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);
 316
 317    /* GL limits and extensions */
 318    st_init_limits(st->pipe->screen, &ctx->Const, &ctx->Extensions);
 319    st_init_extensions(st->pipe->screen, &ctx->Const,
 320                       &ctx->Extensions, &st->options, ctx->Mesa_DXTn);
 321
 322    if (st_have_perfmon(st)) {
 323       ctx->Extensions.AMD_performance_monitor = GL_TRUE;
 324    }
 325
 326    /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
 327    if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
 328       if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
 329          st->clamp_vert_color_in_shader = GL_TRUE;
 330       }
 331
 332       if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
 333          st->clamp_frag_color_in_shader = GL_TRUE;
 334       }
 335
 336       /* For drivers which cannot do color clamping, it's better to just
 337        * disable ARB_color_buffer_float in the core profile, because
 338        * the clamping is deprecated there anyway. */
 339       if (ctx->API == API_OPENGL_CORE &&
 340           (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
 341          st->clamp_vert_color_in_shader = GL_FALSE;
 342          st->clamp_frag_color_in_shader = GL_FALSE;
 343          ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
 344       }
 345    }
 346
 347    /* called after _mesa_create_context/_mesa_init_point, fix default user
 348     * settable max point size up
 349     */
 350    ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
 351                              ctx->Const.MaxPointSizeAA);
 352    /* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
 353    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat = !st->has_shader_model3;
 354
 355    if (!ctx->Extensions.ARB_gpu_shader5) {
 356       for (i = 0; i < MESA_SHADER_STAGES; i++)
 357          ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
 358    }
 359
 360    /* Set which shader types can be compiled at link time. */
 361    st->shader_has_one_variant[MESA_SHADER_VERTEX] =
 362          st->has_shareable_shaders &&
 363          !st->clamp_vert_color_in_shader;
 364
 365    st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
 366          st->has_shareable_shaders &&
 367          !st->clamp_frag_color_in_shader &&
 368          !st->force_persample_in_shader;
 369
 370    st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
 371    st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
 372    st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;
 373
 374    _mesa_compute_version(ctx);
 375
 376    if (ctx->Version == 0) {
 377       /* This can happen when a core profile was requested, but the driver
 378        * does not support some features of GL 3.1 or later.
 379        */
 380       st_destroy_context_priv(st);
 381       return NULL;
 382    }
 383
 384    _mesa_initialize_dispatch_tables(ctx);
 385    _mesa_initialize_vbo_vtxfmt(ctx);
 386
 387    return st;
 388 }
 389
 390 static void st_init_driver_flags(struct gl_driver_flags *f)
 391 {
 392    f->NewArray = ST_NEW_VERTEX_ARRAYS;
 393    f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
 394    f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
 395    f->NewDefaultTessLevels = ST_NEW_TESS_STATE;
 396    f->NewTextureBuffer = ST_NEW_SAMPLER_VIEWS;
 397    f->NewAtomicBuffer = ST_NEW_ATOMIC_BUFFER;
 398    f->NewShaderStorageBuffer = ST_NEW_STORAGE_BUFFER;
 399    f->NewImageUnits = ST_NEW_IMAGE_UNITS;
 400 }
 401
 402 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
 403                                      const struct gl_config *visual,
 404                                      struct st_context *share,
 405                                      const struct st_config_options *options)
 406 {
 407    struct gl_context *ctx;
 408    struct gl_context *shareCtx = share ? share->ctx : NULL;
 409    struct dd_function_table funcs;
 410    struct st_context *st;
 411
 412    memset(&funcs, 0, sizeof(funcs));
 413    st_init_driver_functions(pipe->screen, &funcs);
 414
 415    ctx = _mesa_create_context(api, visual, shareCtx, &funcs);
 416    if (!ctx) {
 417       return NULL;
 418    }
 419
 420    st_init_driver_flags(&ctx->DriverFlags);
 421
 422    /* XXX: need a capability bit in gallium to query if the pipe
 423     * driver prefers DP4 or MUL/MAD for vertex transformation.
 424     */
 425    if (debug_get_option_mesa_mvp_dp4())
 426       ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 427
 428    st = st_create_context_priv(ctx, pipe, options);
 429    if (!st) {
 430       _mesa_destroy_context(ctx);
 431    }
 432
 433    return st;
 434 }
 435
 436
 437 /**
 438  * Callback to release the sampler view attached to a texture object.
 439  * Called by _mesa_HashWalk().
 440  */
 441 static void
 442 destroy_tex_sampler_cb(GLuint id, void *data, void *userData)
 443 {
 444    struct gl_texture_object *texObj = (struct gl_texture_object *) data;
 445    struct st_context *st = (struct st_context *) userData;
 446
 447    st_texture_release_sampler_view(st, st_texture_object(texObj));
 448 }
 449
 450 void st_destroy_context( struct st_context *st )
 451 {
 452    struct pipe_context *pipe = st->pipe;
 453    struct gl_context *ctx = st->ctx;
 454    GLuint i;
 455
 456    _mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
 457
 458    st_reference_fragprog(st, &st->fp, NULL);
 459    st_reference_geomprog(st, &st->gp, NULL);
 460    st_reference_vertprog(st, &st->vp, NULL);
 461    st_reference_tesscprog(st, &st->tcp, NULL);
 462    st_reference_tesseprog(st, &st->tep, NULL);
 463    st_reference_compprog(st, &st->cp, NULL);
 464
 465    /* release framebuffer surfaces */
 466    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 467       pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
 468    }
 469    pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
 470    pipe_sampler_view_reference(&st->pixel_xfer.pixelmap_sampler_view, NULL);
 471    pipe_resource_reference(&st->pixel_xfer.pixelmap_texture, NULL);
 472
 473    _vbo_DestroyContext(ctx);
 474
 475    st_destroy_program_variants(st);
 476
 477    _mesa_free_context_data(ctx);
 478
 479    /* This will free the st_context too, so 'st' must not be accessed
 480     * afterwards. */
 481    st_destroy_context_priv(st);
 482    st = NULL;
 483
 484    pipe->destroy( pipe );
 485
 486    free(ctx);
 487 }
 488
 489 static void
 490 st_emit_string_marker(struct gl_context *ctx, const GLchar *string, GLsizei len)
 491 {
 492    struct st_context *st = ctx->st;
 493    st->pipe->emit_string_marker(st->pipe, string, len);
 494 }
 495
 496 void st_init_driver_functions(struct pipe_screen *screen,
 497                               struct dd_function_table *functions)
 498 {
 499    _mesa_init_shader_object_functions(functions);
 500    _mesa_init_sampler_object_functions(functions);
 501
 502    st_init_blit_functions(functions);
 503    st_init_bufferobject_functions(screen, functions);
 504    st_init_clear_functions(functions);
 505    st_init_bitmap_functions(functions);
 506    st_init_copy_image_functions(functions);
 507    st_init_drawpixels_functions(functions);
 508    st_init_rasterpos_functions(functions);
 509
 510    st_init_drawtex_functions(functions);
 511
 512    st_init_eglimage_functions(functions);
 513
 514    st_init_fbo_functions(functions);
 515    st_init_feedback_functions(functions);
 516    st_init_msaa_functions(functions);
 517    st_init_perfmon_functions(functions);
 518    st_init_program_functions(functions);
 519    st_init_query_functions(functions);
 520    st_init_cond_render_functions(functions);
 521    st_init_readpixels_functions(functions);
 522    st_init_texture_functions(functions);
 523    st_init_texture_barrier_functions(functions);
 524    st_init_flush_functions(screen, functions);
 525    st_init_string_functions(functions);
 526    st_init_viewport_functions(functions);
 527    st_init_compute_functions(functions);
 528
 529    st_init_xformfb_functions(functions);
 530    st_init_syncobj_functions(functions);
 531
 532    st_init_vdpau_functions(functions);
 533
 534    if (screen->get_param(screen, PIPE_CAP_STRING_MARKER))
 535       functions->EmitStringMarker = st_emit_string_marker;
 536
 537    functions->Enable = st_Enable;
 538    functions->UpdateState = st_invalidate_state;
 539    functions->QueryMemoryInfo = st_query_memory_info;
 540 }