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    /* Invalidate render and compute pipelines. */
 142    st->dirty.mesa |= new_state;
 143    st->dirty.st |= ST_NEW_MESA;
 144    st->dirty_cp.mesa |= new_state;
 145    st->dirty_cp.st |= ST_NEW_MESA;
 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_upload(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    if (st->default_texture) {
 176       st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
 177       st->default_texture = NULL;
 178    }
 179
 180    u_upload_destroy(st->uploader);
 181    if (st->indexbuf_uploader) {
 182       u_upload_destroy(st->indexbuf_uploader);
 183    }
 184    if (st->constbuf_uploader) {
 185       u_upload_destroy(st->constbuf_uploader);
 186    }
 187
 188    cso_destroy_context(st->cso_context);
 189    free( st );
 190 }
 191
 192
 193 static struct st_context *
 194 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 195                 const struct st_config_options *options)
 196 {
 197    struct pipe_screen *screen = pipe->screen;
 198    uint i;
 199    struct st_context *st = ST_CALLOC_STRUCT( st_context );
 200
 201    st->options = *options;
 202
 203    ctx->st = st;
 204
 205    st->ctx = ctx;
 206    st->pipe = pipe;
 207
 208    /* XXX: this is one-off, per-screen init: */
 209    st_debug_init();
 210
 211    /* state tracker needs the VBO module */
 212    _vbo_CreateContext(ctx);
 213
 214    /* Initialize render and compute pipelines flags */
 215    st->dirty.mesa = ~0;
 216    st->dirty.st = ~0;
 217    st->dirty_cp.mesa = ~0;
 218    st->dirty_cp.st = ~0;
 219
 220    /* Create upload manager for vertex data for glBitmap, glDrawPixels,
 221     * glClear, etc.
 222     */
 223    st->uploader = u_upload_create(st->pipe, 65536, PIPE_BIND_VERTEX_BUFFER,
 224                                   PIPE_USAGE_STREAM);
 225
 226    if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
 227       st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024,
 228                                               PIPE_BIND_INDEX_BUFFER,
 229                                               PIPE_USAGE_STREAM);
 230    }
 231
 232    if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS))
 233       st->constbuf_uploader = u_upload_create(pipe, 128 * 1024,
 234                                               PIPE_BIND_CONSTANT_BUFFER,
 235                                               PIPE_USAGE_STREAM);
 236
 237    st->cso_context = cso_create_context(pipe);
 238
 239    st_init_atoms( st );
 240    st_init_clear(st);
 241    st_init_draw( st );
 242    st_init_pbo_upload(st);
 243
 244    /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
 245    if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
 246       st->internal_target = PIPE_TEXTURE_2D;
 247    else
 248       st->internal_target = PIPE_TEXTURE_RECT;
 249
 250    /* Vertex element objects used for drawing rectangles for glBitmap,
 251     * glDrawPixels, glClear, etc.
 252     */
 253    for (i = 0; i < ARRAY_SIZE(st->velems_util_draw); i++) {
 254       memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
 255       st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
 256       st->velems_util_draw[i].instance_divisor = 0;
 257       st->velems_util_draw[i].vertex_buffer_index =
 258             cso_get_aux_vertex_buffer_slot(st->cso_context);
 259       st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 260    }
 261
 262    /* we want all vertex data to be placed in buffer objects */
 263    vbo_use_buffer_objects(ctx);
 264
 265
 266    /* make sure that no VBOs are left mapped when we're drawing. */
 267    vbo_always_unmap_buffers(ctx);
 268
 269    /* Need these flags:
 270     */
 271    st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 272
 273    st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 274
 275    st->has_stencil_export =
 276       screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
 277    st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
 278    st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8,
 279                                               PIPE_TEXTURE_2D, 0,
 280                                               PIPE_BIND_SAMPLER_VIEW);
 281    st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8,
 282                                               PIPE_TEXTURE_2D, 0,
 283                                               PIPE_BIND_SAMPLER_VIEW);
 284    st->prefer_blit_based_texture_transfer = screen->get_param(screen,
 285                               PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
 286    st->force_persample_in_shader =
 287       screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) &&
 288       !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP);
 289    st->has_shareable_shaders = screen->get_param(screen,
 290                                                  PIPE_CAP_SHAREABLE_SHADERS);
 291    st->needs_texcoord_semantic =
 292       screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
 293    st->apply_texture_swizzle_to_border_color =
 294       !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
 295          (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
 296           PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
 297    st->has_time_elapsed =
 298       screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
 299    st->has_half_float_packing =
 300       screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT);
 301    st->has_multi_draw_indirect =
 302       screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT);
 303
 304    /* GL limits and extensions */
 305    st_init_limits(st->pipe->screen, &ctx->Const, &ctx->Extensions);
 306    st_init_extensions(st->pipe->screen, &ctx->Const,
 307                       &ctx->Extensions, &st->options, ctx->Mesa_DXTn);
 308
 309    if (st_have_perfmon(st)) {
 310       ctx->Extensions.AMD_performance_monitor = GL_TRUE;
 311    }
 312
 313    /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
 314    if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
 315       if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
 316          st->clamp_vert_color_in_shader = GL_TRUE;
 317       }
 318
 319       if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
 320          st->clamp_frag_color_in_shader = GL_TRUE;
 321       }
 322
 323       /* For drivers which cannot do color clamping, it's better to just
 324        * disable ARB_color_buffer_float in the core profile, because
 325        * the clamping is deprecated there anyway. */
 326       if (ctx->API == API_OPENGL_CORE &&
 327           (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
 328          st->clamp_vert_color_in_shader = GL_FALSE;
 329          st->clamp_frag_color_in_shader = GL_FALSE;
 330          ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
 331       }
 332    }
 333
 334    /* called after _mesa_create_context/_mesa_init_point, fix default user
 335     * settable max point size up
 336     */
 337    st->ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize,
 338                                  ctx->Const.MaxPointSizeAA);
 339    /* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
 340    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitNoSat = !st->has_shader_model3;
 341
 342    if (!ctx->Extensions.ARB_gpu_shader5) {
 343       for (i = 0; i < MESA_SHADER_STAGES; i++)
 344          ctx->Const.ShaderCompilerOptions[i].EmitNoIndirectSampler = true;
 345    }
 346
 347    /* Set which shader types can be compiled at link time. */
 348    st->shader_has_one_variant[MESA_SHADER_VERTEX] =
 349          st->has_shareable_shaders &&
 350          !st->clamp_vert_color_in_shader;
 351
 352    st->shader_has_one_variant[MESA_SHADER_FRAGMENT] =
 353          st->has_shareable_shaders &&
 354          !st->clamp_frag_color_in_shader &&
 355          !st->force_persample_in_shader;
 356
 357    st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders;
 358    st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders;
 359    st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders;
 360
 361    _mesa_compute_version(ctx);
 362
 363    if (ctx->Version == 0) {
 364       /* This can happen when a core profile was requested, but the driver
 365        * does not support some features of GL 3.1 or later.
 366        */
 367       st_destroy_context_priv(st);
 368       return NULL;
 369    }
 370
 371    _mesa_initialize_dispatch_tables(ctx);
 372    _mesa_initialize_vbo_vtxfmt(ctx);
 373
 374    return st;
 375 }
 376
 377 static void st_init_driver_flags(struct gl_driver_flags *f)
 378 {
 379    f->NewArray = ST_NEW_VERTEX_ARRAYS;
 380    f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
 381    f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
 382    f->NewDefaultTessLevels = ST_NEW_TESS_STATE;
 383    f->NewTextureBuffer = ST_NEW_SAMPLER_VIEWS;
 384    f->NewAtomicBuffer = ST_NEW_ATOMIC_BUFFER;
 385    f->NewShaderStorageBuffer = ST_NEW_STORAGE_BUFFER;
 386 }
 387
 388 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
 389                                      const struct gl_config *visual,
 390                                      struct st_context *share,
 391                                      const struct st_config_options *options)
 392 {
 393    struct gl_context *ctx;
 394    struct gl_context *shareCtx = share ? share->ctx : NULL;
 395    struct dd_function_table funcs;
 396    struct st_context *st;
 397
 398    memset(&funcs, 0, sizeof(funcs));
 399    st_init_driver_functions(pipe->screen, &funcs);
 400
 401    ctx = _mesa_create_context(api, visual, shareCtx, &funcs);
 402    if (!ctx) {
 403       return NULL;
 404    }
 405
 406    st_init_driver_flags(&ctx->DriverFlags);
 407
 408    /* XXX: need a capability bit in gallium to query if the pipe
 409     * driver prefers DP4 or MUL/MAD for vertex transformation.
 410     */
 411    if (debug_get_option_mesa_mvp_dp4())
 412       ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
 413
 414    st = st_create_context_priv(ctx, pipe, options);
 415    if (!st) {
 416       _mesa_destroy_context(ctx);
 417    }
 418
 419    return st;
 420 }
 421
 422
 423 /**
 424  * Callback to release the sampler view attached to a texture object.
 425  * Called by _mesa_HashWalk().
 426  */
 427 static void
 428 destroy_tex_sampler_cb(GLuint id, void *data, void *userData)
 429 {
 430    struct gl_texture_object *texObj = (struct gl_texture_object *) data;
 431    struct st_context *st = (struct st_context *) userData;
 432
 433    st_texture_release_sampler_view(st, st_texture_object(texObj));
 434 }
 435
 436 void st_destroy_context( struct st_context *st )
 437 {
 438    struct pipe_context *pipe = st->pipe;
 439    struct gl_context *ctx = st->ctx;
 440    GLuint i;
 441
 442    _mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
 443
 444    st_reference_fragprog(st, &st->fp, NULL);
 445    st_reference_geomprog(st, &st->gp, NULL);
 446    st_reference_vertprog(st, &st->vp, NULL);
 447    st_reference_tesscprog(st, &st->tcp, NULL);
 448    st_reference_tesseprog(st, &st->tep, NULL);
 449
 450    /* release framebuffer surfaces */
 451    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 452       pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
 453    }
 454    pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
 455    pipe_sampler_view_reference(&st->pixel_xfer.pixelmap_sampler_view, NULL);
 456    pipe_resource_reference(&st->pixel_xfer.pixelmap_texture, NULL);
 457
 458    _vbo_DestroyContext(st->ctx);
 459
 460    st_destroy_program_variants(st);
 461
 462    _mesa_free_context_data(ctx);
 463
 464    /* This will free the st_context too, so 'st' must not be accessed
 465     * afterwards. */
 466    st_destroy_context_priv(st);
 467    st = NULL;
 468
 469    pipe->destroy( pipe );
 470
 471    free(ctx);
 472 }
 473
 474 static void
 475 st_emit_string_marker(struct gl_context *ctx, const GLchar *string, GLsizei len)
 476 {
 477    struct st_context *st = ctx->st;
 478    st->pipe->emit_string_marker(st->pipe, string, len);
 479 }
 480
 481 void st_init_driver_functions(struct pipe_screen *screen,
 482                               struct dd_function_table *functions)
 483 {
 484    _mesa_init_shader_object_functions(functions);
 485    _mesa_init_sampler_object_functions(functions);
 486
 487    st_init_blit_functions(functions);
 488    st_init_bufferobject_functions(screen, functions);
 489    st_init_clear_functions(functions);
 490    st_init_bitmap_functions(functions);
 491    st_init_copy_image_functions(functions);
 492    st_init_drawpixels_functions(functions);
 493    st_init_rasterpos_functions(functions);
 494
 495    st_init_drawtex_functions(functions);
 496
 497    st_init_eglimage_functions(functions);
 498
 499    st_init_fbo_functions(functions);
 500    st_init_feedback_functions(functions);
 501    st_init_msaa_functions(functions);
 502    st_init_perfmon_functions(functions);
 503    st_init_program_functions(functions);
 504    st_init_query_functions(functions);
 505    st_init_cond_render_functions(functions);
 506    st_init_readpixels_functions(functions);
 507    st_init_texture_functions(functions);
 508    st_init_texture_barrier_functions(functions);
 509    st_init_flush_functions(screen, functions);
 510    st_init_string_functions(functions);
 511    st_init_viewport_functions(functions);
 512
 513    st_init_xformfb_functions(functions);
 514    st_init_syncobj_functions(functions);
 515
 516    st_init_vdpau_functions(functions);
 517
 518    if (screen->get_param(screen, PIPE_CAP_STRING_MARKER))
 519       functions->EmitStringMarker = st_emit_string_marker;
 520
 521    functions->Enable = st_Enable;
 522    functions->UpdateState = st_invalidate_state;
 523    functions->QueryMemoryInfo = st_query_memory_info;
 524 }