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 "program/prog_cache.h"
  37 #include "vbo/vbo.h"
  38 #include "glapi/glapi.h"
  39 #include "st_context.h"
  40 #include "st_debug.h"
  41 #include "st_cb_bitmap.h"
  42 #include "st_cb_blit.h"
  43 #include "st_cb_bufferobjects.h"
  44 #include "st_cb_clear.h"
  45 #include "st_cb_condrender.h"
  46 #include "st_cb_drawpixels.h"
  47 #include "st_cb_rasterpos.h"
  48 #include "st_cb_drawtex.h"
  49 #include "st_cb_eglimage.h"
  50 #include "st_cb_fbo.h"
  51 #include "st_cb_feedback.h"
  52 #include "st_cb_msaa.h"
  53 #include "st_cb_program.h"
  54 #include "st_cb_queryobj.h"
  55 #include "st_cb_readpixels.h"
  56 #include "st_cb_texture.h"
  57 #include "st_cb_xformfb.h"
  58 #include "st_cb_flush.h"
  59 #include "st_cb_syncobj.h"
  60 #include "st_cb_strings.h"
  61 #include "st_cb_texturebarrier.h"
  62 #include "st_cb_viewport.h"
  63 #include "st_atom.h"
  64 #include "st_draw.h"
  65 #include "st_extensions.h"
  66 #include "st_gen_mipmap.h"
  67 #include "st_program.h"
  68 #include "st_vdpau.h"
  69 #include "pipe/p_context.h"
  70 #include "util/u_inlines.h"
  71 #include "util/u_upload_mgr.h"
  72 #include "cso_cache/cso_context.h"
  73
  74
  75 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", FALSE)
  76
  77
  78 /**
  79  * Called via ctx->Driver.UpdateState()
  80  */
  81 void st_invalidate_state(struct gl_context * ctx, GLuint new_state)
  82 {
  83    struct st_context *st = st_context(ctx);
  84
  85    /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
  86    if (st->clamp_frag_color_in_shader && (new_state & _NEW_FRAG_CLAMP)) {
  87       new_state &= ~_NEW_FRAG_CLAMP;
  88       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  89    }
  90
  91    /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
  92    if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT)) {
  93       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  94    }
  95
  96    st->dirty.mesa |= new_state;
  97    st->dirty.st |= ST_NEW_MESA;
  98
  99    /* This is the only core Mesa module we depend upon.
 100     * No longer use swrast, swsetup, tnl.
 101     */
 102    _vbo_InvalidateState(ctx, new_state);
 103 }
 104
 105 static struct st_context *
 106 st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
 107                 const struct st_config_options *options)
 108 {
 109    struct pipe_screen *screen = pipe->screen;
 110    uint i;
 111    struct st_context *st = ST_CALLOC_STRUCT( st_context );
 112
 113    st->options = *options;
 114
 115    ctx->st = st;
 116
 117    st->ctx = ctx;
 118    st->pipe = pipe;
 119
 120    /* XXX: this is one-off, per-screen init: */
 121    st_debug_init();
 122
 123    /* state tracker needs the VBO module */
 124    _vbo_CreateContext(ctx);
 125
 126    st->dirty.mesa = ~0;
 127    st->dirty.st = ~0;
 128
 129    /* Create upload manager for vertex data for glBitmap, glDrawPixels,
 130     * glClear, etc.
 131     */
 132    st->uploader = u_upload_create(st->pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER);
 133
 134    if (!screen->get_param(screen, PIPE_CAP_USER_INDEX_BUFFERS)) {
 135       st->indexbuf_uploader = u_upload_create(st->pipe, 128 * 1024, 4,
 136                                               PIPE_BIND_INDEX_BUFFER);
 137    }
 138
 139    if (!screen->get_param(screen, PIPE_CAP_USER_CONSTANT_BUFFERS)) {
 140       unsigned alignment =
 141          screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
 142
 143       st->constbuf_uploader = u_upload_create(pipe, 128 * 1024, alignment,
 144                                               PIPE_BIND_CONSTANT_BUFFER);
 145    }
 146
 147    st->cso_context = cso_create_context(pipe);
 148
 149    st_init_atoms( st );
 150    st_init_bitmap(st);
 151    st_init_clear(st);
 152    st_init_draw( st );
 153    st_init_generate_mipmap(st);
 154
 155    /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
 156    if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
 157       st->internal_target = PIPE_TEXTURE_2D;
 158    else
 159       st->internal_target = PIPE_TEXTURE_RECT;
 160
 161    /* Vertex element objects used for drawing rectangles for glBitmap,
 162     * glDrawPixels, glClear, etc.
 163     */
 164    for (i = 0; i < Elements(st->velems_util_draw); i++) {
 165       memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
 166       st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
 167       st->velems_util_draw[i].instance_divisor = 0;
 168       st->velems_util_draw[i].vertex_buffer_index =
 169             cso_get_aux_vertex_buffer_slot(st->cso_context);
 170       st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 171    }
 172
 173    /* we want all vertex data to be placed in buffer objects */
 174    vbo_use_buffer_objects(ctx);
 175
 176
 177    /* make sure that no VBOs are left mapped when we're drawing. */
 178    vbo_always_unmap_buffers(ctx);
 179
 180    /* Need these flags:
 181     */
 182    st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 183
 184    st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 185
 186    st->pixel_xfer.cache = _mesa_new_program_cache();
 187
 188    st->has_stencil_export =
 189       screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT);
 190    st->has_shader_model3 = screen->get_param(screen, PIPE_CAP_SM3);
 191    st->prefer_blit_based_texture_transfer = screen->get_param(screen,
 192                               PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER);
 193
 194    st->needs_texcoord_semantic =
 195       screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD);
 196    st->apply_texture_swizzle_to_border_color =
 197       !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) &
 198          (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 |
 199           PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600));
 200
 201    /* GL limits and extensions */
 202    st_init_limits(st);
 203    st_init_extensions(st);
 204
 205    _mesa_compute_version(ctx);
 206
 207    _mesa_initialize_dispatch_tables(ctx);
 208    _mesa_initialize_vbo_vtxfmt(ctx);
 209
 210    return st;
 211 }
 212
 213 static void st_init_driver_flags(struct gl_driver_flags *f)
 214 {
 215    f->NewArray = ST_NEW_VERTEX_ARRAYS;
 216    f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
 217    f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
 218 }
 219
 220 struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
 221                                      const struct gl_config *visual,
 222                                      struct st_context *share,
 223                                      const struct st_config_options *options)
 224 {
 225    struct gl_context *ctx;
 226    struct gl_context *shareCtx = share ? share->ctx : NULL;
 227    struct dd_function_table funcs;
 228
 229    memset(&funcs, 0, sizeof(funcs));
 230    st_init_driver_functions(&funcs);
 231
 232    ctx = _mesa_create_context(api, visual, shareCtx, &funcs);
 233    if (!ctx) {
 234       return NULL;
 235    }
 236
 237    st_init_driver_flags(&ctx->DriverFlags);
 238
 239    /* XXX: need a capability bit in gallium to query if the pipe
 240     * driver prefers DP4 or MUL/MAD for vertex transformation.
 241     */
 242    if (debug_get_option_mesa_mvp_dp4())
 243       ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = GL_TRUE;
 244
 245    return st_create_context_priv(ctx, pipe, options);
 246 }
 247
 248
 249 static void st_destroy_context_priv( struct st_context *st )
 250 {
 251    uint shader, i;
 252
 253    st_destroy_atoms( st );
 254    st_destroy_draw( st );
 255    st_destroy_generate_mipmap(st);
 256    st_destroy_clear(st);
 257    st_destroy_bitmap(st);
 258    st_destroy_drawpix(st);
 259    st_destroy_drawtex(st);
 260
 261    for (shader = 0; shader < Elements(st->state.sampler_views); shader++) {
 262       for (i = 0; i < Elements(st->state.sampler_views[0]); i++) {
 263          pipe_sampler_view_release(st->pipe,
 264                                    &st->state.sampler_views[shader][i]);
 265       }
 266    }
 267
 268    if (st->default_texture) {
 269       st->ctx->Driver.DeleteTexture(st->ctx, st->default_texture);
 270       st->default_texture = NULL;
 271    }
 272
 273    u_upload_destroy(st->uploader);
 274    if (st->indexbuf_uploader) {
 275       u_upload_destroy(st->indexbuf_uploader);
 276    }
 277    if (st->constbuf_uploader) {
 278       u_upload_destroy(st->constbuf_uploader);
 279    }
 280    free( st );
 281 }
 282
 283
 284 void st_destroy_context( struct st_context *st )
 285 {
 286    struct pipe_context *pipe = st->pipe;
 287    struct cso_context *cso = st->cso_context;
 288    struct gl_context *ctx = st->ctx;
 289    GLuint i;
 290
 291    /* need to unbind and destroy CSO objects before anything else */
 292    cso_release_all(st->cso_context);
 293
 294    st_reference_fragprog(st, &st->fp, NULL);
 295    st_reference_vertprog(st, &st->vp, NULL);
 296
 297    /* release framebuffer surfaces */
 298    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
 299       pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
 300    }
 301    pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
 302
 303    pipe->set_index_buffer(pipe, NULL);
 304
 305    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
 306       pipe->set_constant_buffer(pipe, i, 0, NULL);
 307    }
 308
 309    _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
 310
 311    _vbo_DestroyContext(st->ctx);
 312
 313    st_destroy_program_variants(st);
 314
 315    _mesa_free_context_data(ctx);
 316
 317    /* This will free the st_context too, so 'st' must not be accessed
 318     * afterwards. */
 319    st_destroy_context_priv(st);
 320    st = NULL;
 321
 322    cso_destroy_context(cso);
 323
 324    pipe->destroy( pipe );
 325
 326    free(ctx);
 327 }
 328
 329
 330 void st_init_driver_functions(struct dd_function_table *functions)
 331 {
 332    _mesa_init_shader_object_functions(functions);
 333    _mesa_init_sampler_object_functions(functions);
 334
 335    functions->Accum = _mesa_accum;
 336
 337    st_init_blit_functions(functions);
 338    st_init_bufferobject_functions(functions);
 339    st_init_clear_functions(functions);
 340    st_init_bitmap_functions(functions);
 341    st_init_drawpixels_functions(functions);
 342    st_init_rasterpos_functions(functions);
 343
 344    st_init_drawtex_functions(functions);
 345
 346    st_init_eglimage_functions(functions);
 347
 348    st_init_fbo_functions(functions);
 349    st_init_feedback_functions(functions);
 350    st_init_msaa_functions(functions);
 351    st_init_program_functions(functions);
 352    st_init_query_functions(functions);
 353    st_init_cond_render_functions(functions);
 354    st_init_readpixels_functions(functions);
 355    st_init_texture_functions(functions);
 356    st_init_texture_barrier_functions(functions);
 357    st_init_flush_functions(functions);
 358    st_init_string_functions(functions);
 359    st_init_viewport_functions(functions);
 360
 361    st_init_xformfb_functions(functions);
 362    st_init_syncobj_functions(functions);
 363
 364    st_init_vdpau_functions(functions);
 365
 366    functions->UpdateState = st_invalidate_state;
 367 }