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