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_condrender.h"
  47 #include "st_cb_copyimage.h"
  48 #include "st_cb_drawpixels.h"
  49 #include "st_cb_rasterpos.h"
  50 #include "st_cb_drawtex.h"
  51 #include "st_cb_eglimage.h"
  52 #include "st_cb_fbo.h"
  53 #include "st_cb_feedback.h"
  54 #include "st_cb_msaa.h"
  55 #include "st_cb_perfmon.h"
  56 #include "st_cb_program.h"
  57 #include "st_cb_queryobj.h"
  58 #include "st_cb_readpixels.h"
  59 #include "st_cb_texture.h"
  60 #include "st_cb_xformfb.h"
  61 #include "st_cb_flush.h"
  62 #include "st_cb_syncobj.h"
  63 #include "st_cb_strings.h"
  64 #include "st_cb_texturebarrier.h"
  65 #include "st_cb_viewport.h"
  66 #include "st_atom.h"
  67 #include "st_draw.h"
  68 #include "st_extensions.h"
  69 #include "st_gen_mipmap.h"
  70 #include "st_program.h"
  71 #include "st_vdpau.h"
  72 #include "st_texture.h"
  73 #include "pipe/p_context.h"
  74 #include "util/u_inlines.h"
  75 #include "util/u_upload_mgr.h"
  76 #include "cso_cache/cso_context.h"
  77
  78
  79 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
  80
  81
  82 /**
  83  * Called via ctx->Driver.Enable()
  84  */
  85 static void st_Enable(struct gl_context * ctx, GLenum cap, GLboolean state)
  86 {
  87    struct st_context *st = st_context(ctx);
  88
  89    switch (cap) {
  90    case GL_DEBUG_OUTPUT:
  91       st_enable_debug_output(st, state);
  92       break;
  93    default:
  94       break;
  95    }
  96 }
  97
  98
  99 /**
 100  * Called via ctx->Driver.QueryMemoryInfo()
 101  */
 102 static void
 103 st_query_memory_info(struct gl_context *ctx, struct gl_memory_info *out)
 104 {
 105    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 106    struct pipe_memory_info info;
 107
 108    assert(screen->query_memory_info);
 109    if (!screen->query_memory_info)
 110       return;
 111
 112    screen->query_memory_info(screen, &info);
 113
 114    out->total_device_memory = info.total_device_memory;
 115    out->avail_device_memory = info.avail_device_memory;
 116    out->total_staging_memory = info.total_staging_memory;
 117    out->avail_staging_memory = info.avail_staging_memory;
 118    out->device_memory_evicted = info.device_memory_evicted;
 119    out->nr_device_memory_evictions = info.nr_device_memory_evictions;
 120 }
 121
 122
 123 /**
 124  * Called via ctx->Driver.UpdateState()
 125  */
 126 void st_invalidate_state(struct gl_context * ctx, GLbitfield new_state)
 127 {
 128    struct st_context *st = st_context(ctx);
 129
 130    /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
 131    if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) {
 132       new_state &= ~_NEW_FRAG_CLAMP;
 133       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 134    }
 135
 136    /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
 137    if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) {
 138       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 139    }
 140
 141    st->dirty.mesa |= new_state;
 142    st->dirty.st |= ST_NEW_MESA;
 143
 144    /* This is the only core Mesa module we depend upon.
 145     * No longer use swrast, swsetup, tnl.
 146     */
 147    _vbo_InvalidateState(ctx, new_state);
 148 }
 149
 150
 151 static void
 152 st_destroy_context_priv(struct st_context *st)
 153 {
 154    uint shader, i;
 155
 156    st_destroy_atoms( st );
 157    st_destroy_draw( st );
 158    st_destroy_clear(st);
 159    st_destroy_bitmap(st);
 160    st_destroy_drawpix(st);
 161    st_destroy_drawtex(st);
 162    st_destroy_perfmon(st);
 163    st_destroy_pbo_upload(st);
 164
 165    for (shader = 0; shader < ARRAY_SIZE(st->state.sampler_views); shader++) {
 166       for (i = 0; i < ARRAY_SIZE(st->state.sampler_views[0]); i++) {
 167          pipe_sampler_view_release(st->pipe,
 168                                    &st->state.sampler_views[shader][i]);
 169       }
 170    }
 171
 172    if (st->default_texture) {
 173       st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
 174       st->default_texture = NULL;
 175    }
 176
 177    u_upload_destroy(st->uploader);
 178    if (st->indexbuf_uploader) {
 179       u_upload_destroy(st->indexbuf_uploader);
 180    }
 181    if (st->constbuf_uploader) {
 182       u_upload_destroy(st->constbuf_uploader);
 183    }
 184
 185    cso_destroy_context(st->cso_context);
 186    free( st );
 187 }
 188
 189
 190 static struct st_context *
 191 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 192                 const struct st_config_options *options)
 193 {
 194    struct pipe_screen *screen = pipe->screen;
 195    uint i;
 196    struct st_context *st = ST_CALLOC_STRUCT( st_context );
 197
 198    st->options = *options;
 199
 200    ctx->st = st;
 201
 202    st->ctx = ctx;
 203    st->pipe = pipe;
 204
 205    /* XXX: this is one-off, per-screen init: */
 206    st_debug_init();
 207
 208    /* state tracker needs the VBO module */
 209    _vbo_CreateContext(ctx);
 210
 211    st->dirty.mesa = ~0;
 212    st->dirty.st = ~0;
 213
 214    /* Create upload manager for vertex data for glBitmap, glDrawPixels,
 215     * glClear, etc.
 216     */
 217    st->uploader = u_upload_create(st->pipe, 65536, PIPE_BIND_VERTEX_BUFFER,
 218                                   PIPE_USAGE_STREAM);
 219
 220    if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
 221       st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024,
 222                                               PIPE_BIND_INDEX_BUFFER,
 223                                               PIPE_USAGE_STREAM);
 224    }
 225
 226    if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS))
 227       st->constbuf_uploader = u_upload_create(pipe, 128 * 1024,
 228                                               PIPE_BIND_CONSTANT_BUFFER,
 229                                               PIPE_USAGE_STREAM);
 230
 231    st->cso_context = cso_create_context(pipe);
 232
 233    st_init_atoms( st );
 234    st_init_clear(st);
 235    st_init_draw( st );
 236    st_init_pbo_upload(st);
 237
 238    /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
 239    if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
 240       st->internal_target = PIPE_TEXTURE_2D;
 241    else
 242       st->internal_target = PIPE_TEXTURE_RECT;
 243
 244    /* Vertex element objects used for drawing rectangles for glBitmap,
 245     * glDrawPixels, glClear, etc.
 246     */
 247    for (i = 0; i < ARRAY_SIZE(st->velems_util_draw); i++) {
 248       memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
 249       st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
 250       st->velems_util_draw[i].instance_divisor = 0;
 251       st->velems_util_draw[i].vertex_buffer_index =
 252             cso_get_aux_vertex_buffer_slot(st->cso_context);
 253       st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 254    }
 255
 256    /* we want all vertex data to be placed in buffer objects */
 257    vbo_use_buffer_objects(ctx);
 258
 259
 260    /* make sure that no VBOs are left mapped when we're drawing. */
 261    vbo_always_unmap_buffers(ctx);
 262
 263    /* Need these flags:
 264     */
 265    st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 266
 267    st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 268
 269    st->has_stencil_export =
 270       screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
 271    st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
 272    st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
 273                                               PIPE_TEXTURE_2D, 0,
 274                                               PIPE_BIND_SAMPLER_VIEW);
 275    st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
 276                                               PIPE_TEXTURE_2D, 0,
 277                                               PIPE_BIND_SAMPLER_VIEW);
 278    st->prefer_blit_based_texture_transfer = screen->get_param(screen,
 279                               PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
 280    st->force_persample_in_shader =
 281       screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
 282       !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
 283    st->has_shareable_shaders = screen->get_param(screen,
 284                                                  PIPE_CAP_SHAREABLE_SHADERS);
 285    st->needs_texcoord_semantic =
 286       screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
 287    st->apply_texture_swizzle_to_border_color =
 288       !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
 289          (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
 290           PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
 291    st->has_time_elapsed =
 292       screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
 293    st->has_half_float_packing =
 294       screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
 295    st->has_multi_draw_indirect =
 296       screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);
 297
 298    /* GL limits and extensions */
 299    st_init_limits(st->pipe->screen, &ctx->Const, &ctx->Extensions);
 300    st_init_extensions(st->pipe->screen, &ctx->Const,
 301                       &ctx->Extensions, &st->options, ctx->Mesa_DXTn);
 302
 303    if (st_have_perfmon(st)) {
 304       ctx->Extensions.AMD_performance_monitor = GL_TRUE;
 305    }
 306
 307    /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
 308    if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
 309       if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
 310          st->clamp_vert_color_in_shader = GL_TRUE;
 311       }
 312
 313       if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
 314          st->clamp_frag_color_in_shader = GL_TRUE;
 315       }
 316
 317       /* For drivers which cannot do color clamping, it's better to just
 318        * disable ARB_color_buffer_float in the core profile, because
 319        * the clamping is deprecated there anyway. */
 320       if (ctx->API == API_OPENGL_CORE &&
 321           (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
 322          st->clamp_vert_color_in_shader = GL_FALSE;
 323          st->clamp_frag_color_in_shader = GL_FALSE;
 324          ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
 325       }
 326    }
 327
 328    /* called after _mesa_create_context/_mesa_init_point, fix default user
 329     * settable max point size up
 330     */
 331    st->ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
 332                                  ctx->Const.MaxPointSizeAA);
 333    /* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
 334    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat = !st->has_shader_model3;
 335
 336    if (!ctx->Extensions.ARB_gpu_shader5) {
 337       for (i = 0; i < MESA_SHADER_STAGES; i++)
 338          ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
 339    }
 340
 341    /* Set which shader types can be compiled at link time. */
 342    st->shader_has_one_variant[MESA_SHADER_VERTEX] =
 343          st->has_shareable_shaders &&
 344          !st->clamp_vert_color_in_shader;
 345
 346    st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
 347          st->has_shareable_shaders &&
 348          !st->clamp_frag_color_in_shader &&
 349          !st->force_persample_in_shader;
 350
 351    st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
 352    st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
 353    st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;
 354
 355    _mesa_compute_version(ctx);
 356
 357    if (ctx->Version == 0) {
 358       /* This can happen when a core profile was requested, but the driver
 359        * does not support some features of GL 3.1 or later.
 360        */
 361       st_destroy_context_priv(st);
 362       return NULL;
 363    }
 364
 365    _mesa_initialize_dispatch_tables(ctx);
 366    _mesa_initialize_vbo_vtxfmt(ctx);
 367
 368    return st;
 369 }
 370
 371 static void st_init_driver_flags(struct gl_driver_flags *f)
 372 {
 373    f->NewArray = ST_NEW_VERTEX_ARRAYS;
 374    f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
 375    f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
 376    f->NewDefaultTessLevels = ST_NEW_TESS_STATE;
 377    f->NewTextureBuffer = ST_NEW_SAMPLER_VIEWS;
 378    f->NewAtomicBuffer = ST_NEW_ATOMIC_BUFFER;
 379    f->NewShaderStorageBuffer = ST_NEW_STORAGE_BUFFER;
 380 }
 381
 382 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
 383                                      const struct gl_config *visual,
 384                                      struct st_context *share,
 385                                      const struct st_config_options *options)
 386 {
 387    struct gl_context *ctx;
 388    struct gl_context *shareCtx = share ? share->ctx : NULL;
 389    struct dd_function_table funcs;
 390    struct st_context *st;
 391
 392    memset(&funcs, 0, sizeof(funcs));
 393    st_init_driver_functions(pipe->screen, &funcs);
 394
 395    ctx = _mesa_create_context(api, visual, shareCtx, &funcs);
 396    if (!ctx) {
 397       return NULL;
 398    }
 399
 400    st_init_driver_flags(&ctx->DriverFlags);
 401
 402    /* XXX: need a capability bit in gallium to query if the pipe
 403     * driver prefers DP4 or MUL/MAD for vertex transformation.
 404     */
 405    if (debug_get_option_mesa_mvp_dp4())
 406       ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 407
 408    st = st_create_context_priv(ctx, pipe, options);
 409    if (!st) {
 410       _mesa_destroy_context(ctx);
 411    }
 412
 413    return st;
 414 }
 415
 416
 417 /**
 418  * Callback to release the sampler view attached to a texture object.
 419  * Called by _mesa_HashWalk().
 420  */
 421 static void
 422 destroy_tex_sampler_cb(GLuint id, void *data, void *userData)
 423 {
 424    struct gl_texture_object *texObj = (struct gl_texture_object *) data;
 425    struct st_context *st = (struct st_context *) userData;
 426
 427    st_texture_release_sampler_view(st, st_texture_object(texObj));
 428 }
 429
 430 void st_destroy_context( struct st_context *st )
 431 {
 432    struct pipe_context *pipe = st->pipe;
 433    struct gl_context *ctx = st->ctx;
 434    GLuint i;
 435
 436    _mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
 437
 438    st_reference_fragprog(st, &st->fp, NULL);
 439    st_reference_geomprog(st, &st->gp, NULL);
 440    st_reference_vertprog(st, &st->vp, NULL);
 441    st_reference_tesscprog(st, &st->tcp, NULL);
 442    st_reference_tesseprog(st, &st->tep, NULL);
 443
 444    /* release framebuffer surfaces */
 445    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 446       pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
 447    }
 448    pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
 449    pipe_sampler_view_reference(&st->pixel_xfer.pixelmap_sampler_view, NULL);
 450    pipe_resource_reference(&st->pixel_xfer.pixelmap_texture, NULL);
 451
 452    _vbo_DestroyContext(st->ctx);
 453
 454    st_destroy_program_variants(st);
 455
 456    _mesa_free_context_data(ctx);
 457
 458    /* This will free the st_context too, so 'st' must not be accessed
 459     * afterwards. */
 460    st_destroy_context_priv(st);
 461    st = NULL;
 462
 463    pipe->destroy( pipe );
 464
 465    free(ctx);
 466 }
 467
 468 static void
 469 st_emit_string_marker(struct gl_context *ctx, const GLchar *string, GLsizei len)
 470 {
 471    struct st_context *st = ctx->st;
 472    st->pipe->emit_string_marker(st->pipe, string, len);
 473 }
 474
 475 void st_init_driver_functions(struct pipe_screen *screen,
 476                               struct dd_function_table *functions)
 477 {
 478    _mesa_init_shader_object_functions(functions);
 479    _mesa_init_sampler_object_functions(functions);
 480
 481    st_init_blit_functions(functions);
 482    st_init_bufferobject_functions(screen, functions);
 483    st_init_clear_functions(functions);
 484    st_init_bitmap_functions(functions);
 485    st_init_copy_image_functions(functions);
 486    st_init_drawpixels_functions(functions);
 487    st_init_rasterpos_functions(functions);
 488
 489    st_init_drawtex_functions(functions);
 490
 491    st_init_eglimage_functions(functions);
 492
 493    st_init_fbo_functions(functions);
 494    st_init_feedback_functions(functions);
 495    st_init_msaa_functions(functions);
 496    st_init_perfmon_functions(functions);
 497    st_init_program_functions(functions);
 498    st_init_query_functions(functions);
 499    st_init_cond_render_functions(functions);
 500    st_init_readpixels_functions(functions);
 501    st_init_texture_functions(functions);
 502    st_init_texture_barrier_functions(functions);
 503    st_init_flush_functions(screen, functions);
 504    st_init_string_functions(functions);
 505    st_init_viewport_functions(functions);
 506
 507    st_init_xformfb_functions(functions);
 508    st_init_syncobj_functions(functions);
 509
 510    st_init_vdpau_functions(functions);
 511
 512    if (screen->get_param(screen, PIPE_CAP_STRING_MARKER))
 513       functions->EmitStringMarker = st_emit_string_marker;
 514
 515    functions->Enable = st_Enable;
 516    functions->UpdateState = st_invalidate_state;
 517    functions->QueryMemoryInfo = st_query_memory_info;
 518 }