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   {"GL_ARB_pixel_buffer_object",        NULL},
 144   {NULL,                                NULL}
 145   /* *INDENT-ON* */
 146 };
 147
 148
 149 static const struct dri_extension mm_extensions[] = {
 150   { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
 151   { NULL, NULL }
 152 };
 153
 154 /**
 155  * The GL 2.0 functions are needed to make display lists work with
 156  * functions added by GL_ATI_separate_stencil.
 157  */
 158 static const struct dri_extension gl_20_extension[] = {
 159 #ifdef R600_ENABLE_GLSL_TEST
 160     {"GL_ARB_shading_language_100",                     GL_VERSION_2_0_functions },
 161 #else
 162   {"GL_VERSION_2_0",                    GL_VERSION_2_0_functions },
 163 #endif /* R600_ENABLE_GLSL_TEST */
 164   {NULL, NULL}
 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         radeon->vtbl.check_blit = r600_check_blit;
 241         radeon->vtbl.blit = r600_blit;
 242         radeon->vtbl.is_format_renderable = radeonIsFormatRenderable;
 243 }
 244
 245 static void r600InitConstValues(GLcontext *ctx, radeonScreenPtr screen)
 246 {
 247         ctx->Const.MaxTextureImageUnits = 16;
 248         /* 8 per clause on r6xx, 16 on r7xx
 249          * but I think mesa only supports 8 at the moment
 250          */
 251         ctx->Const.MaxTextureCoordUnits = 8;
 252         ctx->Const.MaxTextureUnits =
 253             MIN2(ctx->Const.MaxTextureImageUnits,
 254                  ctx->Const.MaxTextureCoordUnits);
 255         ctx->Const.MaxCombinedTextureImageUnits =
 256                 ctx->Const.MaxVertexTextureImageUnits +
 257                 ctx->Const.MaxTextureImageUnits;
 258
 259         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 260         ctx->Const.MaxTextureLodBias = 16.0;
 261
 262         ctx->Const.MaxTextureLevels = 13; /* hw support 14 */
 263         ctx->Const.MaxTextureRectSize = 4096; /* hw support 8192 */
 264
 265         ctx->Const.MinPointSize   = 0x0001 / 8.0;
 266         ctx->Const.MinPointSizeAA = 0x0001 / 8.0;
 267         ctx->Const.MaxPointSize   = 0xffff / 8.0;
 268         ctx->Const.MaxPointSizeAA = 0xffff / 8.0;
 269
 270         ctx->Const.MinLineWidth   = 0x0001 / 8.0;
 271         ctx->Const.MinLineWidthAA = 0x0001 / 8.0;
 272         ctx->Const.MaxLineWidth   = 0xffff / 8.0;
 273         ctx->Const.MaxLineWidthAA = 0xffff / 8.0;
 274
 275         ctx->Const.MaxDrawBuffers = 1; /* hw supports 8 */
 276         ctx->Const.MaxColorAttachments = 1;
 277         ctx->Const.MaxRenderbufferSize = 4096;
 278
 279         /* 256 for reg-based consts, inline consts also supported */
 280         ctx->Const.VertexProgram.MaxInstructions = 8192; /* in theory no limit */
 281         ctx->Const.VertexProgram.MaxNativeInstructions = 8192;
 282         ctx->Const.VertexProgram.MaxNativeAttribs = 160;
 283         ctx->Const.VertexProgram.MaxTemps = 128;
 284         ctx->Const.VertexProgram.MaxNativeTemps = 128;
 285         ctx->Const.VertexProgram.MaxNativeParameters = 256;
 286         ctx->Const.VertexProgram.MaxNativeAddressRegs = 1; /* ??? */
 287
 288         ctx->Const.FragmentProgram.MaxNativeTemps = 128;
 289         ctx->Const.FragmentProgram.MaxNativeAttribs = 32;
 290         ctx->Const.FragmentProgram.MaxNativeParameters = 256;
 291         ctx->Const.FragmentProgram.MaxNativeAluInstructions = 8192;
 292         /* 8 per clause on r6xx, 16 on r7xx */
 293         if (screen->chip_family >= CHIP_FAMILY_RV770)
 294                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 16;
 295         else
 296                 ctx->Const.FragmentProgram.MaxNativeTexInstructions = 8;
 297         ctx->Const.FragmentProgram.MaxNativeInstructions = 8192;
 298         ctx->Const.FragmentProgram.MaxNativeTexIndirections = 8; /* ??? */
 299         ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0;    /* and these are?? */
 300 }
 301
 302 static void r600ParseOptions(context_t *r600, radeonScreenPtr screen)
 303 {
 304         /* Parse configuration files.
 305          * Do this here so that initialMaxAnisotropy is set before we create
 306          * the default textures.
 307          */
 308         driParseConfigFiles(&r600->radeon.optionCache, &screen->optionCache,
 309                             screen->driScreen->myNum, "r600");
 310
 311         r600->radeon.initialMaxAnisotropy = driQueryOptionf(&r600->radeon.optionCache,
 312                                                             "def_max_anisotropy");
 313
 314 }
 315
 316 static void r600InitGLExtensions(GLcontext *ctx)
 317 {
 318         context_t *r600 = R700_CONTEXT(ctx);
 319
 320         driInitExtensions(ctx, card_extensions, GL_TRUE);
 321         if (r600->radeon.radeonScreen->kernel_mm)
 322           driInitExtensions(ctx, mm_extensions, GL_FALSE);
 323
 324 #ifdef R600_ENABLE_GLSL_TEST
 325     driInitExtensions(ctx, gl_20_extension, GL_TRUE);
 326     _mesa_enable_2_0_extensions(ctx);
 327
 328     /* glsl compiler has problem if this is not GL_TRUE */
 329     ctx->Shader.EmitCondCodes = GL_TRUE;
 330 #endif /* R600_ENABLE_GLSL_TEST */
 331
 332         if (driQueryOptionb
 333             (&r600->radeon.optionCache, "disable_stencil_two_side"))
 334                 _mesa_disable_extension(ctx, "GL_EXT_stencil_two_side");
 335
 336         if (r600->radeon.glCtx->Mesa_DXTn
 337             && !driQueryOptionb(&r600->radeon.optionCache, "disable_s3tc")) {
 338                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 339                 _mesa_enable_extension(ctx, "GL_S3_s3tc");
 340         } else
 341             if (driQueryOptionb(&r600->radeon.optionCache, "force_s3tc_enable"))
 342         {
 343                 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
 344         }
 345
 346         /* RV740 had a broken pipe config prior to drm 1.32 */
 347         if (!r600->radeon.radeonScreen->kernel_mm) {
 348                 if ((r600->radeon.dri.drmMinor < 32) &&
 349                     (r600->radeon.radeonScreen->chip_family == CHIP_FAMILY_RV740))
 350                         _mesa_disable_extension(ctx, "GL_ARB_occlusion_query");
 351         }
 352 }
 353
 354 /* Create the device specific rendering context.
 355  */
 356 GLboolean r600CreateContext(const __GLcontextModes * glVisual,
 357                             __DRIcontext * driContextPriv,
 358                             void *sharedContextPrivate)
 359 {
 360         __DRIscreen *sPriv = driContextPriv->driScreenPriv;
 361         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 362         struct dd_function_table functions;
 363         context_t *r600;
 364         GLcontext *ctx;
 365
 366         assert(glVisual);
 367         assert(driContextPriv);
 368         assert(screen);
 369
 370         /* Allocate the R600 context */
 371         r600 = (context_t*) CALLOC(sizeof(*r600));
 372         if (!r600) {
 373                 radeon_error("Failed to allocate memory for context.\n");
 374                 return GL_FALSE;
 375         }
 376
 377         r600ParseOptions(r600, screen);
 378
 379         r600->radeon.radeonScreen = screen;
 380         r600_init_vtbl(&r600->radeon);
 381
 382         /* Init default driver functions then plug in our R600-specific functions
 383          * (the texture functions are especially important)
 384          */
 385         _mesa_init_driver_functions(&functions);
 386
 387         r700InitStateFuncs(&functions);
 388         r600InitTextureFuncs(&r600->radeon, &functions);
 389         r700InitShaderFuncs(&functions);
 390         radeonInitQueryObjFunctions(&functions);
 391         r700InitIoctlFuncs(&functions);
 392         radeonInitBufferObjectFuncs(&functions);
 393
 394         if (!radeonInitContext(&r600->radeon, &functions,
 395                                glVisual, driContextPriv,
 396                                sharedContextPrivate)) {
 397                 radeon_error("Initializing context failed.\n");
 398                 FREE(r600);
 399                 return GL_FALSE;
 400         }
 401
 402         ctx = r600->radeon.glCtx;
 403
 404         ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
 405         ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 406
 407         r600InitConstValues(ctx, screen);
 408
 409         _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
 410
 411         /* Initialize the software rasterizer and helper modules.
 412          */
 413         _swrast_CreateContext(ctx);
 414         _vbo_CreateContext(ctx);
 415         _tnl_CreateContext(ctx);
 416         _swsetup_CreateContext(ctx);
 417         _swsetup_Wakeup(ctx);
 418
 419         /* Install the customized pipeline:
 420          */
 421         _tnl_destroy_pipeline(ctx);
 422         _tnl_install_pipeline(ctx, r600_pipeline);
 423         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 424
 425         /* Configure swrast and TNL to match hardware characteristics:
 426          */
 427         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 428         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 429         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 430         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 431
 432         radeon_init_debug();
 433
 434         r700InitDraw(ctx);
 435
 436         radeon_fbo_init(&r600->radeon);
 437         radeonInitSpanFuncs( ctx );
 438         r600InitCmdBuf(r600);
 439         r700InitState(r600->radeon.glCtx);
 440
 441         r600InitGLExtensions(ctx);
 442
 443         return GL_TRUE;
 444 }
 445
 446