src/mesa/drivers/dri/r600/r600_context.c

   1 /*
   2 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
   3
   4 The Weather Channel (TM) funded Tungsten Graphics to develop the
   5 initial release of the Radeon 8500 driver under the XFree86 license.
   6 This notice must be preserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining
   9 a copy of this software and associated documentation files (the
  10 "Software"), to deal in the Software without restriction, including
  11 without limitation the rights to use, copy, modify, merge, publish,
  12 distribute, sublicense, and/or sell copies of the Software, and to
  13 permit persons to whom the Software is furnished to do so, subject to
  14 the following conditions:
  15
  16 The above copyright notice and this permission notice (including the
  17 next paragraph) shall be included in all copies or substantial
  18 portions of the Software.
  19
  20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  23 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  24 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28 **************************************************************************/
  29
  30 /**
  31  * \file
  32  *
  33  * \author Keith Whitwell <keith@tungstengraphics.com>
  34  *
  35  * \author Nicolai Haehnle <prefect_@gmx.net>
  36  */
  37
  38 #include "main/glheader.h"
  39 #include "main/api_arrayelt.h"
  40 #include "main/context.h"
  41 #include "main/simple_list.h"
  42 #include "main/imports.h"
  43 #include "main/matrix.h"
  44 #include "main/extensions.h"
  45 #include "main/state.h"
  46 #include "main/bufferobj.h"
  47 #include "main/texobj.h"
  48
  49 #include "swrast/swrast.h"
  50 #include "swrast_setup/swrast_setup.h"
  51 #include "vbo/vbo.h"
  52
  53 #include "tnl/tnl.h"
  54 #include "tnl/t_pipeline.h"
  55 #include "tnl/t_vp_build.h"
  56
  57 #include "drivers/common/driverfuncs.h"
  58
  59 #include "radeon_debug.h"
  60 #include "r600_context.h"
  61 #include "radeon_common_context.h"
  62 #include "radeon_buffer_objects.h"
  63 #include "radeon_span.h"
  64 #include "r600_cmdbuf.h"
  65 #include "r600_emit.h"
  66 #include "radeon_bocs_wrapper.h"
  67 #include "radeon_queryobj.h"
  68 #include "r600_blit.h"
  69
  70 #include "r700_state.h"
  71 #include "r700_ioctl.h"
  72
  73
  74 #include "vblank.h"
  75 #include "utils.h"
  76 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  77
  78 #define R600_ENABLE_GLSL_TEST 1
  79
  80 #define need_GL_VERSION_2_0
  81 #define need_GL_ARB_occlusion_query
  82 #define need_GL_ARB_point_parameters
  83 #define need_GL_ARB_vertex_program
  84 #define need_GL_EXT_blend_equation_separate
  85 #define need_GL_EXT_blend_func_separate
  86 #define need_GL_EXT_blend_minmax
  87 #define need_GL_EXT_framebuffer_object
  88 #define need_GL_EXT_fog_coord
  89 #define need_GL_EXT_gpu_program_parameters
  90 #define need_GL_EXT_provoking_vertex
  91 #define need_GL_EXT_secondary_color
  92 #define need_GL_EXT_stencil_two_side
  93 #define need_GL_ATI_separate_stencil
  94 #define need_GL_NV_vertex_program
  95
  96 #include "main/remap_helper.h"
  97
  98 static const struct dri_extension card_extensions[] = {
  99   /* *INDENT-OFF* */
 100   {"GL_ARB_depth_clamp",                NULL},
 101   {"GL_ARB_depth_texture",              NULL},
 102   {"GL_ARB_fragment_program",           NULL},
 103   {"GL_ARB_fragment_program_shadow",    NULL},
 104   {"GL_ARB_occlusion_query",            GL_ARB_occlusion_query_functions},
 105   {"GL_ARB_multitexture",               NULL},
 106   {"GL_ARB_point_parameters",           GL_ARB_point_parameters_functions},
 107   {"GL_ARB_shadow",                     NULL},
 108   {"GL_ARB_shadow_ambient",             NULL},
 109   {"GL_ARB_texture_border_clamp",       NULL},
 110   {"GL_ARB_texture_cube_map",           NULL},
 111   {"GL_ARB_texture_env_add",            NULL},
 112   {"GL_ARB_texture_env_combine",        NULL},
 113   {"GL_ARB_texture_env_crossbar",       NULL},
 114   {"GL_ARB_texture_env_dot3",           NULL},
 115   {"GL_ARB_texture_mirrored_repeat",    NULL},
 116   {"GL_ARB_texture_non_power_of_two",   NULL},
 117   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 118   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 119   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 120   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 121   {"GL_EXT_blend_subtract",             NULL},
 122   {"GL_EXT_packed_depth_stencil",       NULL},
 123   {"GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 124   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 125   {"GL_EXT_provoking_vertex",           GL_EXT_provoking_vertex_functions },
 126   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 127   {"GL_EXT_shadow_funcs",               NULL},
 128   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 129   {"GL_EXT_stencil_wrap",               NULL},
 130   {"GL_EXT_texture_edge_clamp",         NULL},
 131   {"GL_EXT_texture_env_combine",        NULL},
 132   {"GL_EXT_texture_env_dot3",           NULL},
 133   {"GL_EXT_texture_filter_anisotropic", NULL},
 134   {"GL_EXT_texture_lod_bias",           NULL},
 135   {"GL_EXT_texture_mirror_clamp",       NULL},
 136   {"GL_EXT_texture_rectangle",          NULL},
 137   {"GL_EXT_vertex_array_bgra",          NULL},
 138   {"GL_EXT_texture_sRGB",               NULL},
 139   {"GL_ATI_separate_stencil",           GL_ATI_separate_stencil_functions},
 140   {"GL_ATI_texture_env_combine3",       NULL},
 141   {"GL_ATI_texture_mirror_once",        NULL},
 142   {"GL_MESA_pack_invert",               NULL},
 143   {"GL_MESA_ycbcr_texture",             NULL},
 144   {"GL_MESAX_texture_float",            NULL},
 145   {"GL_NV_blend_square",                NULL},
 146   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 147   {"GL_SGIS_generate_mipmap",           NULL},
 148   {NULL,                                NULL}
 149   /* *INDENT-ON* */
 150 };
 151
 152
 153 static const struct dri_extension mm_extensions[] = {
 154   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 155   { NULL, NULL }
 156 };
 157
 158 /**
 159  * The GL 2.0 functions are needed to make display lists work with
 160  * functions added by GL_ATI_separate_stencil.
 161  */
 162 static const struct dri_extension gl_20_extension[] = {
 163 #ifdef R600_ENABLE_GLSL_TEST
 164     {"GL_ARB_shading_language_100",                     GL_VERSION_2_0_functions },
 165 #else
 166   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 167 #endif /* R600_ENABLE_GLSL_TEST */
 168   {NULL, NULL}
 169 };
 170
 171 static const struct tnl_pipeline_stage *r600_pipeline[] = {
 172         /* Catch any t&l fallbacks
 173          */
 174         &_tnl_vertex_transform_stage,
 175         &_tnl_normal_transform_stage,
 176         &_tnl_lighting_stage,
 177         &_tnl_fog_coordinate_stage,
 178         &_tnl_texgen_stage,
 179         &_tnl_texture_transform_stage,
 180         &_tnl_point_attenuation_stage,
 181         &_tnl_vertex_program_stage,
 182         &_tnl_render_stage,
 183         0,
 184 };
 185
 186 static void r600_get_lock(radeonContextPtr rmesa)
 187 {
 188         drm_radeon_sarea_t *sarea = rmesa->sarea;
 189
 190         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 191                 sarea->ctx_owner = rmesa->dri.hwContext;
 192                 if (!rmesa->radeonScreen->kernel_mm)
 193                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 194         }
 195 }
 196
 197 static void r600_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 198 {
 199     /* please flush pipe do all pending work */
 200     /* to be enabled */
 201 }
 202
 203 static void r600_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 204 {
 205         r700Start3D((context_t *)radeon);
 206 }
 207
 208 static void r600_fallback(GLcontext *ctx, GLuint bit, GLboolean mode)
 209 {
 210         context_t *context = R700_CONTEXT(ctx);
 211         if (mode)
 212                 context->radeon.Fallback |= bit;
 213         else
 214                 context->radeon.Fallback &= ~bit;
 215 }
 216
 217 static void r600_emit_query_finish(radeonContextPtr radeon)
 218 {
 219         context_t *context = (context_t*) radeon;
 220         BATCH_LOCALS(&context->radeon);
 221
 222         struct radeon_query_object *query = radeon->query.current;
 223
 224         BEGIN_BATCH_NO_AUTOSTATE(4 + 2);
 225         R600_OUT_BATCH(CP_PACKET3(R600_IT_EVENT_WRITE, 2));
 226         R600_OUT_BATCH(ZPASS_DONE);
 227         R600_OUT_BATCH(query->curr_offset + 8); /* hw writes qwords */
 228         R600_OUT_BATCH(0x00000000);
 229         R600_OUT_BATCH_RELOC(VGT_EVENT_INITIATOR, query->bo, 0, 0, RADEON_GEM_DOMAIN_GTT, 0);
 230         END_BATCH();
 231         assert(query->curr_offset < RADEON_QUERY_PAGE_SIZE);
 232         query->emitted_begin = GL_FALSE;
 233 }
 234
 235 static void r600_init_vtbl(radeonContextPtr radeon)
 236 {
 237         radeon->vtbl.get_lock = r600_get_lock;
 238         radeon->vtbl.update_viewport_offset = r700UpdateViewportOffset;
 239         radeon->vtbl.emit_cs_header = r600_vtbl_emit_cs_header;
 240         radeon->vtbl.swtcl_flush = NULL;
 241         radeon->vtbl.pre_emit_atoms = r600_vtbl_pre_emit_atoms;
 242         radeon->vtbl.fallback = r600_fallback;
 243         radeon->vtbl.emit_query_finish = r600_emit_query_finish;
 244         radeon->vtbl.blit = r600_blit;
 245 }
 246
 247 static void r600InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 248 {
 249         context_t *r600 = R700_CONTEXT(ctx);
 250
 251         ctx->Const.MaxTextureImageUnits =
 252             driQueryOptioni(&r600->radeon.optionCache, "texture_image_units");
 253         ctx->Const.MaxTextureCoordUnits =
 254             driQueryOptioni(&r600->radeon.optionCache, "texture_coord_units");
 255         ctx->Const.MaxTextureUnits =
 256             MIN2(ctx->Const.MaxTextureImageUnits,
 257                  ctx->Const.MaxTextureCoordUnits);
 258         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 259         ctx->Const.MaxTextureLodBias = 16.0;
 260
 261         ctx->Const.MaxTextureLevels = 13; /* hw support 14 */
 262         ctx->Const.MaxTextureRectSize = 4096; /* hw support 8192 */
 263
 264         ctx->Const.MinPointSize   = 0x0001 / 8.0;
 265         ctx->Const.MinPointSizeAA = 0x0001 / 8.0;
 266         ctx->Const.MaxPointSize   = 0xffff / 8.0;
 267         ctx->Const.MaxPointSizeAA = 0xffff / 8.0;
 268
 269         ctx->Const.MinLineWidth   = 0x0001 / 8.0;
 270         ctx->Const.MinLineWidthAA = 0x0001 / 8.0;
 271         ctx->Const.MaxLineWidth   = 0xffff / 8.0;
 272         ctx->Const.MaxLineWidthAA = 0xffff / 8.0;
 273
 274         ctx->Const.MaxDrawBuffers = 1; /* hw supports 8 */
 275
 276         /* 256 for reg-based consts, inline consts also supported */
 277         ctx->Const.VertexProgram.MaxInstructions = 8192; /* in theory no limit */
 278         ctx->Const.VertexProgram.MaxNativeInstructions = 8192;
 279         ctx->Const.VertexProgram.MaxNativeAttribs = 160;
 280         ctx->Const.VertexProgram.MaxTemps = 128;
 281         ctx->Const.VertexProgram.MaxNativeTemps = 128;
 282         ctx->Const.VertexProgram.MaxNativeParameters = 256;
 283         ctx->Const.VertexProgram.MaxNativeAddressRegs = 1; /* ??? */
 284
 285         ctx->Const.FragmentProgram.MaxNativeTemps = 128;
 286         ctx->Const.FragmentProgram.MaxNativeAttribs = 32;
 287         ctx->Const.FragmentProgram.MaxNativeParameters = 256;
 288         ctx->Const.FragmentProgram.MaxNativeAluInstructions = 8192;
 289         /* 8 per clause on r6xx, 16 on rv670/r7xx */
 290         if ((screen->chip_family == CHIP_FAMILY_RV670) ||
 291             (screen->chip_family >= CHIP_FAMILY_RV770))
 292                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 16;
 293         else
 294                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 8;
 295         ctx->Const.FragmentProgram.MaxNativeInstructions = 8192;
 296         ctx->Const.FragmentProgram.MaxNativeTexIndirections = 8; /* ??? */
 297         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 298 }
 299
 300 static void r600ParseOptions(context_t *r600, radeonScreenPtr screen)
 301 {
 302         /* Parse configuration files.
 303          * Do this here so that initialMaxAnisotropy is set before we create
 304          * the default textures.
 305          */
 306         driParseConfigFiles(&r600->radeon.optionCache, &screen->optionCache,
 307                             screen->driScreen->myNum, "r600");
 308
 309         r600->radeon.initialMaxAnisotropy = driQueryOptionf(&r600->radeon.optionCache,
 310                                                             "def_max_anisotropy");
 311
 312 }
 313
 314 static void r600InitGLExtensions(GLcontext *ctx)
 315 {
 316         context_t *r600 = R700_CONTEXT(ctx);
 317
 318         driInitExtensions(ctx, card_extensions, GL_TRUE);
 319         if (r600->radeon.radeonScreen->kernel_mm)
 320           driInitExtensions(ctx, mm_extensions, GL_FALSE);
 321
 322 #ifdef R600_ENABLE_GLSL_TEST
 323     driInitExtensions(ctx, gl_20_extension, GL_TRUE);
 324     _mesa_enable_2_0_extensions(ctx);
 325
 326     /* glsl compiler has problem if this is not GL_TRUE */
 327     ctx->Shader.EmitCondCodes = GL_TRUE;
 328 #endif /* R600_ENABLE_GLSL_TEST */
 329
 330         if (driQueryOptionb
 331             (&r600->radeon.optionCache, "disable_stencil_two_side"))
 332                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 333
 334         if (r600->radeon.glCtx->Mesa_DXTn
 335             && !driQueryOptionb(&r600->radeon.optionCache, "disable_s3tc")) {
 336                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 337                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 338         } else
 339             if (driQueryOptionb(&r600->radeon.optionCache, "force_s3tc_enable"))
 340         {
 341                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 342         }
 343
 344         /* XXX: RV740 only seems to report results from half of its DBs */
 345         if (r600->radeon.radeonScreen->chip_family == CHIP_FAMILY_RV740)
 346                 _mesa_disable_extension(ctx, "GL_ARB_occlusion_query");
 347 }
 348
 349 /* Create the device specific rendering context.
 350  */
 351 GLboolean r600CreateContext(const __GLcontextModes * glVisual,
 352                             __DRIcontext * driContextPriv,
 353                             void *sharedContextPrivate)
 354 {
 355         __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 356         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 357         struct dd_function_table functions;
 358         context_t *r600;
 359         GLcontext *ctx;
 360
 361         assert(glVisual);
 362         assert(driContextPriv);
 363         assert(screen);
 364
 365         /* Allocate the R600 context */
 366         r600 = (context_t*) CALLOC(sizeof(*r600));
 367         if (!r600) {
 368                 radeon_error("Failed to allocate memory for context.\n");
 369                 return GL_FALSE;
 370         }
 371
 372         r600ParseOptions(r600, screen);
 373
 374         r600->radeon.radeonScreen = screen;
 375         r600_init_vtbl(&r600->radeon);
 376
 377         /* Init default driver functions then plug in our R600-specific functions
 378          * (the texture functions are especially important)
 379          */
 380         _mesa_init_driver_functions(&functions);
 381
 382         r700InitStateFuncs(&functions);
 383         r600InitTextureFuncs(&r600->radeon, &functions);
 384         r700InitShaderFuncs(&functions);
 385         radeonInitQueryObjFunctions(&functions);
 386         r700InitIoctlFuncs(&functions);
 387         radeonInitBufferObjectFuncs(&functions);
 388
 389         if (!radeonInitContext(&r600->radeon, &functions,
 390                                glVisual, driContextPriv,
 391                                sharedContextPrivate)) {
 392                 radeon_error("Initializing context failed.\n");
 393                 FREE(r600);
 394                 return GL_FALSE;
 395         }
 396
 397         ctx = r600->radeon.glCtx;
 398
 399         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 400         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 401
 402         r600InitConstValues(ctx, screen);
 403
 404         _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 405
 406         /* Initialize the software rasterizer and helper modules.
 407          */
 408         _swrast_CreateContext(ctx);
 409         _vbo_CreateContext(ctx);
 410         _tnl_CreateContext(ctx);
 411         _swsetup_CreateContext(ctx);
 412         _swsetup_Wakeup(ctx);
 413
 414         /* Install the customized pipeline:
 415          */
 416         _tnl_destroy_pipeline(ctx);
 417         _tnl_install_pipeline(ctx, r600_pipeline);
 418         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 419
 420         /* Configure swrast and TNL to match hardware characteristics:
 421          */
 422         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 423         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 424         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 425         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 426
 427         radeon_init_debug();
 428
 429         r700InitDraw(ctx);
 430
 431         radeon_fbo_init(&r600->radeon);
 432         radeonInitSpanFuncs( ctx );
 433         r600InitCmdBuf(r600);
 434         r700InitState(r600->radeon.glCtx);
 435
 436         r600InitGLExtensions(ctx);
 437
 438         return GL_TRUE;
 439 }
 440
 441