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
  69 #include "r700_state.h"
  70 #include "r700_ioctl.h"
  71
  72
  73 #include "vblank.h"
  74 #include "utils.h"
  75 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  76
  77 //#define R600_ENABLE_GLSL_TEST 1
  78
  79 #define need_GL_VERSION_2_0
  80 #define need_GL_ARB_occlusion_query
  81 #define need_GL_ARB_point_parameters
  82 #define need_GL_ARB_vertex_program
  83 #define need_GL_EXT_blend_equation_separate
  84 #define need_GL_EXT_blend_func_separate
  85 #define need_GL_EXT_blend_minmax
  86 #define need_GL_EXT_framebuffer_object
  87 #define need_GL_EXT_fog_coord
  88 #define need_GL_EXT_gpu_program_parameters
  89 #define need_GL_EXT_provoking_vertex
  90 #define need_GL_EXT_secondary_color
  91 #define need_GL_EXT_stencil_two_side
  92 #define need_GL_ATI_separate_stencil
  93 #define need_GL_NV_vertex_program
  94
  95 #include "main/remap_helper.h"
  96
  97 static const struct dri_extension card_extensions[] = {
  98   /* *INDENT-OFF* */
  99   {"GL_ARB_depth_clamp",                NULL},
 100   {"GL_ARB_depth_texture",              NULL},
 101   {"GL_ARB_fragment_program",           NULL},
 102   {"GL_ARB_occlusion_query",            GL_ARB_occlusion_query_functions},
 103   {"GL_ARB_multitexture",               NULL},
 104   {"GL_ARB_point_parameters",           GL_ARB_point_parameters_functions},
 105   {"GL_ARB_shadow",                     NULL},
 106   {"GL_ARB_shadow_ambient",             NULL},
 107   {"GL_ARB_texture_border_clamp",       NULL},
 108   {"GL_ARB_texture_cube_map",           NULL},
 109   {"GL_ARB_texture_env_add",            NULL},
 110   {"GL_ARB_texture_env_combine",        NULL},
 111   {"GL_ARB_texture_env_crossbar",       NULL},
 112   {"GL_ARB_texture_env_dot3",           NULL},
 113   {"GL_ARB_texture_mirrored_repeat",    NULL},
 114   {"GL_ARB_vertex_program",             GL_ARB_vertex_program_functions},
 115   {"GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions},
 116   {"GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions},
 117   {"GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions},
 118   {"GL_EXT_blend_subtract",             NULL},
 119   {"GL_EXT_packed_depth_stencil",       NULL},
 120   {"GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
 121   {"GL_EXT_gpu_program_parameters",     GL_EXT_gpu_program_parameters_functions},
 122   {"GL_EXT_provoking_vertex",           GL_EXT_provoking_vertex_functions },
 123   {"GL_EXT_secondary_color",            GL_EXT_secondary_color_functions},
 124   {"GL_EXT_shadow_funcs",               NULL},
 125   {"GL_EXT_stencil_two_side",           GL_EXT_stencil_two_side_functions},
 126   {"GL_EXT_stencil_wrap",               NULL},
 127   {"GL_EXT_texture_edge_clamp",         NULL},
 128   {"GL_EXT_texture_env_combine",        NULL},
 129   {"GL_EXT_texture_env_dot3",           NULL},
 130   {"GL_EXT_texture_filter_anisotropic", NULL},
 131   {"GL_EXT_texture_lod_bias",           NULL},
 132   {"GL_EXT_texture_mirror_clamp",       NULL},
 133   {"GL_EXT_texture_rectangle",          NULL},
 134   {"GL_EXT_vertex_array_bgra",          NULL},
 135   {"GL_EXT_texture_sRGB",               NULL},
 136   {"GL_ATI_separate_stencil",           GL_ATI_separate_stencil_functions},
 137   {"GL_ATI_texture_env_combine3",       NULL},
 138   {"GL_ATI_texture_mirror_once",        NULL},
 139   {"GL_MESA_pack_invert",               NULL},
 140   {"GL_MESA_ycbcr_texture",             NULL},
 141   {"GL_MESAX_texture_float",            NULL},
 142   {"GL_NV_blend_square",                NULL},
 143   {"GL_NV_vertex_program",              GL_NV_vertex_program_functions},
 144   {"GL_SGIS_generate_mipmap",           NULL},
 145   {NULL,                                NULL}
 146   /* *INDENT-ON* */
 147 };
 148
 149
 150 static const struct dri_extension mm_extensions[] = {
 151   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 152   { NULL, NULL }
 153 };
 154
 155 /**
 156  * The GL 2.0 functions are needed to make display lists work with
 157  * functions added by GL_ATI_separate_stencil.
 158  */
 159 static const struct dri_extension gl_20_extension[] = {
 160 #ifdef R600_ENABLE_GLSL_TEST
 161     {"GL_ARB_shading_language_100",                     GL_VERSION_2_0_functions },
 162 #else
 163   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 164 #endif /* R600_ENABLE_GLSL_TEST */
 165 };
 166
 167 static const struct tnl_pipeline_stage *r600_pipeline[] = {
 168         /* Catch any t&l fallbacks
 169          */
 170         &_tnl_vertex_transform_stage,
 171         &_tnl_normal_transform_stage,
 172         &_tnl_lighting_stage,
 173         &_tnl_fog_coordinate_stage,
 174         &_tnl_texgen_stage,
 175         &_tnl_texture_transform_stage,
 176         &_tnl_point_attenuation_stage,
 177         &_tnl_vertex_program_stage,
 178         &_tnl_render_stage,
 179         0,
 180 };
 181
 182 static void r600_get_lock(radeonContextPtr rmesa)
 183 {
 184         drm_radeon_sarea_t *sarea = rmesa->sarea;
 185
 186         if (sarea->ctx_owner != rmesa->dri.hwContext) {
 187                 sarea->ctx_owner = rmesa->dri.hwContext;
 188                 if (!rmesa->radeonScreen->kernel_mm)
 189                         radeon_bo_legacy_texture_age(rmesa->radeonScreen->bom);
 190         }
 191 }
 192
 193 static void r600_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
 194 {
 195     /* please flush pipe do all pending work */
 196     /* to be enabled */
 197 }
 198
 199 static void r600_vtbl_pre_emit_atoms(radeonContextPtr radeon)
 200 {
 201         r700Start3D((context_t *)radeon);
 202 }
 203
 204 static void r600_fallback(GLcontext *ctx, GLuint bit, GLboolean mode)
 205 {
 206         context_t *context = R700_CONTEXT(ctx);
 207         if (mode)
 208                 context->radeon.Fallback |= bit;
 209         else
 210                 context->radeon.Fallback &= ~bit;
 211 }
 212
 213 static void r600_emit_query_finish(radeonContextPtr radeon)
 214 {
 215         context_t *context = (context_t*) radeon;
 216         BATCH_LOCALS(&context->radeon);
 217
 218         struct radeon_query_object *query = radeon->query.current;
 219
 220         BEGIN_BATCH_NO_AUTOSTATE(4 + 2);
 221         R600_OUT_BATCH(CP_PACKET3(R600_IT_EVENT_WRITE, 2));
 222         R600_OUT_BATCH(ZPASS_DONE);
 223         R600_OUT_BATCH(query->curr_offset + 8); /* hw writes qwords */
 224         R600_OUT_BATCH(0x00000000);
 225         R600_OUT_BATCH_RELOC(VGT_EVENT_INITIATOR, query->bo, 0, 0, RADEON_GEM_DOMAIN_GTT, 0);
 226         END_BATCH();
 227         assert(query->curr_offset < RADEON_QUERY_PAGE_SIZE);
 228         query->emitted_begin = GL_FALSE;
 229 }
 230
 231 static void r600_init_vtbl(radeonContextPtr radeon)
 232 {
 233         radeon->vtbl.get_lock = r600_get_lock;
 234         radeon->vtbl.update_viewport_offset = r700UpdateViewportOffset;
 235         radeon->vtbl.emit_cs_header = r600_vtbl_emit_cs_header;
 236         radeon->vtbl.swtcl_flush = NULL;
 237         radeon->vtbl.pre_emit_atoms = r600_vtbl_pre_emit_atoms;
 238         radeon->vtbl.fallback = r600_fallback;
 239         radeon->vtbl.emit_query_finish = r600_emit_query_finish;
 240 }
 241
 242 static void r600InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 243 {
 244         context_t *r600 = R700_CONTEXT(ctx);
 245
 246         ctx->Const.MaxTextureImageUnits =
 247             driQueryOptioni(&r600->radeon.optionCache, "texture_image_units");
 248         ctx->Const.MaxTextureCoordUnits =
 249             driQueryOptioni(&r600->radeon.optionCache, "texture_coord_units");
 250         ctx->Const.MaxTextureUnits =
 251             MIN2(ctx->Const.MaxTextureImageUnits,
 252                  ctx->Const.MaxTextureCoordUnits);
 253         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 254         ctx->Const.MaxTextureLodBias = 16.0;
 255
 256         ctx->Const.MaxTextureLevels = 13; /* hw support 14 */
 257         ctx->Const.MaxTextureRectSize = 4096; /* hw support 8192 */
 258
 259         ctx->Const.MinPointSize   = 0x0001 / 8.0;
 260         ctx->Const.MinPointSizeAA = 0x0001 / 8.0;
 261         ctx->Const.MaxPointSize   = 0xffff / 8.0;
 262         ctx->Const.MaxPointSizeAA = 0xffff / 8.0;
 263
 264         ctx->Const.MinLineWidth   = 0x0001 / 8.0;
 265         ctx->Const.MinLineWidthAA = 0x0001 / 8.0;
 266         ctx->Const.MaxLineWidth   = 0xffff / 8.0;
 267         ctx->Const.MaxLineWidthAA = 0xffff / 8.0;
 268
 269         ctx->Const.MaxDrawBuffers = 1; /* hw supports 8 */
 270
 271         /* 256 for reg-based consts, inline consts also supported */
 272         ctx->Const.VertexProgram.MaxInstructions = 8192; /* in theory no limit */
 273         ctx->Const.VertexProgram.MaxNativeInstructions = 8192;
 274         ctx->Const.VertexProgram.MaxNativeAttribs = 160;
 275         ctx->Const.VertexProgram.MaxTemps = 128;
 276         ctx->Const.VertexProgram.MaxNativeTemps = 128;
 277         ctx->Const.VertexProgram.MaxNativeParameters = 256;
 278         ctx->Const.VertexProgram.MaxNativeAddressRegs = 1; /* ??? */
 279
 280         ctx->Const.FragmentProgram.MaxNativeTemps = 128;
 281         ctx->Const.FragmentProgram.MaxNativeAttribs = 32;
 282         ctx->Const.FragmentProgram.MaxNativeParameters = 256;
 283         ctx->Const.FragmentProgram.MaxNativeAluInstructions = 8192;
 284         /* 8 per clause on r6xx, 16 on rv670/r7xx */
 285         if ((screen->chip_family == CHIP_FAMILY_RV670) ||
 286             (screen->chip_family >= CHIP_FAMILY_RV770))
 287                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 16;
 288         else
 289                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 8;
 290         ctx->Const.FragmentProgram.MaxNativeInstructions = 8192;
 291         ctx->Const.FragmentProgram.MaxNativeTexIndirections = 8; /* ??? */
 292         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 293 }
 294
 295 static void r600ParseOptions(context_t *r600, radeonScreenPtr screen)
 296 {
 297         /* Parse configuration files.
 298          * Do this here so that initialMaxAnisotropy is set before we create
 299          * the default textures.
 300          */
 301         driParseConfigFiles(&r600->radeon.optionCache, &screen->optionCache,
 302                             screen->driScreen->myNum, "r600");
 303
 304         r600->radeon.initialMaxAnisotropy = driQueryOptionf(&r600->radeon.optionCache,
 305                                                             "def_max_anisotropy");
 306
 307 }
 308
 309 static void r600InitGLExtensions(GLcontext *ctx)
 310 {
 311         context_t *r600 = R700_CONTEXT(ctx);
 312
 313         driInitExtensions(ctx, card_extensions, GL_TRUE);
 314         if (r600->radeon.radeonScreen->kernel_mm)
 315           driInitExtensions(ctx, mm_extensions, GL_FALSE);
 316
 317 #ifdef R600_ENABLE_GLSL_TEST
 318     driInitExtensions(ctx, gl_20_extension, GL_TRUE);
 319     //_mesa_enable_2_0_extensions(ctx);
 320     //1.5
 321     ctx->Extensions.ARB_occlusion_query = GL_TRUE;
 322     ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
 323     ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
 324     //2.0
 325     ctx->Extensions.ARB_draw_buffers = GL_TRUE;
 326     ctx->Extensions.ARB_point_sprite = GL_TRUE;
 327     ctx->Extensions.ARB_shader_objects = GL_TRUE;
 328     ctx->Extensions.ARB_vertex_shader = GL_TRUE;
 329     ctx->Extensions.ARB_fragment_shader = GL_TRUE;
 330     ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
 331     ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
 332     ctx->Extensions.ATI_separate_stencil = GL_TRUE;
 333
 334     /* glsl compiler has problem if this is not GL_TRUE */
 335     ctx->Shader.EmitCondCodes = GL_TRUE;
 336 #endif /* R600_ENABLE_GLSL_TEST */
 337
 338         if (driQueryOptionb
 339             (&r600->radeon.optionCache, "disable_stencil_two_side"))
 340                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 341
 342         if (r600->radeon.glCtx->Mesa_DXTn
 343             && !driQueryOptionb(&r600->radeon.optionCache, "disable_s3tc")) {
 344                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 345                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 346         } else
 347             if (driQueryOptionb(&r600->radeon.optionCache, "force_s3tc_enable"))
 348         {
 349                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 350         }
 351
 352         /* XXX: RV740 only seems to report results from half of its DBs */
 353         if (r600->radeon.radeonScreen->chip_family == CHIP_FAMILY_RV740)
 354                 _mesa_disable_extension(ctx, "GL_ARB_occlusion_query");
 355 }
 356
 357 /* Create the device specific rendering context.
 358  */
 359 GLboolean r600CreateContext(const __GLcontextModes * glVisual,
 360                             __DRIcontextPrivate * driContextPriv,
 361                             void *sharedContextPrivate)
 362 {
 363         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 364         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 365         struct dd_function_table functions;
 366         context_t *r600;
 367         GLcontext *ctx;
 368
 369         assert(glVisual);
 370         assert(driContextPriv);
 371         assert(screen);
 372
 373         /* Allocate the R600 context */
 374         r600 = (context_t*) CALLOC(sizeof(*r600));
 375         if (!r600) {
 376                 radeon_error("Failed to allocate memory for context.\n");
 377                 return GL_FALSE;
 378         }
 379
 380         r600ParseOptions(r600, screen);
 381
 382         r600->radeon.radeonScreen = screen;
 383         r600_init_vtbl(&r600->radeon);
 384
 385         /* Init default driver functions then plug in our R600-specific functions
 386          * (the texture functions are especially important)
 387          */
 388         _mesa_init_driver_functions(&functions);
 389
 390         r700InitStateFuncs(&functions);
 391         r600InitTextureFuncs(&functions);
 392         r700InitShaderFuncs(&functions);
 393         radeonInitQueryObjFunctions(&functions);
 394         r700InitIoctlFuncs(&functions);
 395         radeonInitBufferObjectFuncs(&functions);
 396
 397         if (!radeonInitContext(&r600->radeon, &functions,
 398                                glVisual, driContextPriv,
 399                                sharedContextPrivate)) {
 400                 radeon_error("Initializing context failed.\n");
 401                 FREE(r600);
 402                 return GL_FALSE;
 403         }
 404
 405         ctx = r600->radeon.glCtx;
 406
 407         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 408         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 409
 410         r600InitConstValues(ctx, screen);
 411
 412         _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 413
 414         /* Initialize the software rasterizer and helper modules.
 415          */
 416         _swrast_CreateContext(ctx);
 417         _vbo_CreateContext(ctx);
 418         _tnl_CreateContext(ctx);
 419         _swsetup_CreateContext(ctx);
 420         _swsetup_Wakeup(ctx);
 421
 422         /* Install the customized pipeline:
 423          */
 424         _tnl_destroy_pipeline(ctx);
 425         _tnl_install_pipeline(ctx, r600_pipeline);
 426         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 427
 428         /* Configure swrast and TNL to match hardware characteristics:
 429          */
 430         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 431         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 432         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 433         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 434
 435         radeon_init_debug();
 436
 437         r700InitDraw(ctx);
 438
 439         radeon_fbo_init(&r600->radeon);
 440         radeonInitSpanFuncs( ctx );
 441         r600InitCmdBuf(r600);
 442         r700InitState(r600->radeon.glCtx);
 443
 444         r600InitGLExtensions(ctx);
 445
 446         return GL_TRUE;
 447 }
 448
 449