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         ctx->Const.MaxColorAttachments = 1;
 274         ctx->Const.MaxRenderbufferSize = 4096;
 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 r7xx */
 290         if (screen->chip_family >= CHIP_FAMILY_RV770)
 291                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 16;
 292         else
 293                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 8;
 294         ctx->Const.FragmentProgram.MaxNativeInstructions = 8192;
 295         ctx->Const.FragmentProgram.MaxNativeTexIndirections = 8; /* ??? */
 296         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 297 }
 298
 299 static void r600ParseOptions(context_t *r600, radeonScreenPtr screen)
 300 {
 301         /* Parse configuration files.
 302          * Do this here so that initialMaxAnisotropy is set before we create
 303          * the default textures.
 304          */
 305         driParseConfigFiles(&r600->radeon.optionCache, &screen->optionCache,
 306                             screen->driScreen->myNum, "r600");
 307
 308         r600->radeon.initialMaxAnisotropy = driQueryOptionf(&r600->radeon.optionCache,
 309                                                             "def_max_anisotropy");
 310
 311 }
 312
 313 static void r600InitGLExtensions(GLcontext *ctx)
 314 {
 315         context_t *r600 = R700_CONTEXT(ctx);
 316
 317         driInitExtensions(ctx, card_extensions, GL_TRUE);
 318         if (r600->radeon.radeonScreen->kernel_mm)
 319           driInitExtensions(ctx, mm_extensions, GL_FALSE);
 320
 321 #ifdef R600_ENABLE_GLSL_TEST
 322     driInitExtensions(ctx, gl_20_extension, GL_TRUE);
 323     _mesa_enable_2_0_extensions(ctx);
 324
 325     /* glsl compiler has problem if this is not GL_TRUE */
 326     ctx->Shader.EmitCondCodes = GL_TRUE;
 327 #endif /* R600_ENABLE_GLSL_TEST */
 328
 329         if (driQueryOptionb
 330             (&r600->radeon.optionCache, "disable_stencil_two_side"))
 331                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 332
 333         if (r600->radeon.glCtx->Mesa_DXTn
 334             && !driQueryOptionb(&r600->radeon.optionCache, "disable_s3tc")) {
 335                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 336                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 337         } else
 338             if (driQueryOptionb(&r600->radeon.optionCache, "force_s3tc_enable"))
 339         {
 340                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 341         }
 342
 343         /* RV740 had a broken pipe config prior to drm 1.32 */
 344         if (!r600->radeon.radeonScreen->kernel_mm) {
 345                 if ((r600->radeon.dri.drmMinor < 32) &&
 346                     (r600->radeon.radeonScreen->chip_family == CHIP_FAMILY_RV740))
 347                         _mesa_disable_extension(ctx, "GL_ARB_occlusion_query");
 348         }
 349 }
 350
 351 /* Create the device specific rendering context.
 352  */
 353 GLboolean r600CreateContext(const __GLcontextModes * glVisual,
 354                             __DRIcontext * driContextPriv,
 355                             void *sharedContextPrivate)
 356 {
 357         __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 358         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 359         struct dd_function_table functions;
 360         context_t *r600;
 361         GLcontext *ctx;
 362
 363         assert(glVisual);
 364         assert(driContextPriv);
 365         assert(screen);
 366
 367         /* Allocate the R600 context */
 368         r600 = (context_t*) CALLOC(sizeof(*r600));
 369         if (!r600) {
 370                 radeon_error("Failed to allocate memory for context.\n");
 371                 return GL_FALSE;
 372         }
 373
 374         r600ParseOptions(r600, screen);
 375
 376         r600->radeon.radeonScreen = screen;
 377         r600_init_vtbl(&r600->radeon);
 378
 379         /* Init default driver functions then plug in our R600-specific functions
 380          * (the texture functions are especially important)
 381          */
 382         _mesa_init_driver_functions(&functions);
 383
 384         r700InitStateFuncs(&functions);
 385         r600InitTextureFuncs(&r600->radeon, &functions);
 386         r700InitShaderFuncs(&functions);
 387         radeonInitQueryObjFunctions(&functions);
 388         r700InitIoctlFuncs(&functions);
 389         radeonInitBufferObjectFuncs(&functions);
 390
 391         if (!radeonInitContext(&r600->radeon, &functions,
 392                                glVisual, driContextPriv,
 393                                sharedContextPrivate)) {
 394                 radeon_error("Initializing context failed.\n");
 395                 FREE(r600);
 396                 return GL_FALSE;
 397         }
 398
 399         ctx = r600->radeon.glCtx;
 400
 401         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 402         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 403
 404         r600InitConstValues(ctx, screen);
 405
 406         _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 407
 408         /* Initialize the software rasterizer and helper modules.
 409          */
 410         _swrast_CreateContext(ctx);
 411         _vbo_CreateContext(ctx);
 412         _tnl_CreateContext(ctx);
 413         _swsetup_CreateContext(ctx);
 414         _swsetup_Wakeup(ctx);
 415
 416         /* Install the customized pipeline:
 417          */
 418         _tnl_destroy_pipeline(ctx);
 419         _tnl_install_pipeline(ctx, r600_pipeline);
 420         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 421
 422         /* Configure swrast and TNL to match hardware characteristics:
 423          */
 424         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 425         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 426         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 427         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 428
 429         radeon_init_debug();
 430
 431         r700InitDraw(ctx);
 432
 433         radeon_fbo_init(&r600->radeon);
 434         radeonInitSpanFuncs( ctx );
 435         r600InitCmdBuf(r600);
 436         r700InitState(r600->radeon.glCtx);
 437
 438         r600InitGLExtensions(ctx);
 439
 440         return GL_TRUE;
 441 }
 442
 443