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