src/mesa/drivers/dri/r300/r300_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  * Authors:
  32  *   Keith Whitwell <keith@tungstengraphics.com>
  33  *   Nicolai Haehnle <prefect_@gmx.net>
  34  */
  35 #include "glheader.h"
  36 #include "api_arrayelt.h"
  37 #include "context.h"
  38 #include "simple_list.h"
  39 #include "imports.h"
  40 #include "matrix.h"
  41 #include "extensions.h"
  42 #include "state.h"
  43
  44 #include "swrast/swrast.h"
  45 #include "swrast_setup/swrast_setup.h"
  46 #include "array_cache/acache.h"
  47
  48 #include "tnl/tnl.h"
  49 #include "tnl/t_pipeline.h"
  50
  51 #include "drivers/common/driverfuncs.h"
  52
  53 #include "radeon_ioctl.h"
  54 #include "radeon_span.h"
  55 #include "r300_context.h"
  56 #include "r300_cmdbuf.h"
  57 #include "r300_state.h"
  58 #include "r300_ioctl.h"
  59 #include "r300_tex.h"
  60
  61 #include "vblank.h"
  62 #include "utils.h"
  63 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  64
  65
  66 /* Extension strings exported by the R300 driver.
  67  */
  68 static const char *const card_extensions[] = {
  69         "GL_ARB_multisample",
  70         "GL_ARB_multitexture",
  71         "GL_ARB_texture_border_clamp",
  72         "GL_ARB_texture_compression",
  73         "GL_ARB_texture_cube_map",
  74         "GL_ARB_texture_env_add",
  75         "GL_ARB_texture_env_combine",
  76         "GL_ARB_texture_env_dot3",
  77         "GL_ARB_texture_mirrored_repeat",
  78         "GL_ARB_vertex_buffer_object",
  79         "GL_ARB_vertex_program",
  80         //"GL_ARB_fragment_program",
  81         "GL_EXT_blend_equation_separate",
  82         "GL_EXT_blend_func_separate",
  83         "GL_EXT_blend_minmax",
  84         "GL_EXT_blend_subtract",
  85         "GL_EXT_secondary_color",
  86         "GL_EXT_stencil_wrap",
  87         "GL_EXT_texture_edge_clamp",
  88         "GL_EXT_texture_env_combine",
  89         "GL_EXT_texture_env_dot3",
  90         "GL_EXT_texture_filter_anisotropic",
  91         "GL_EXT_texture_lod_bias",
  92         "GL_EXT_texture_mirror_clamp",
  93         "GL_EXT_texture_rectangle",
  94         "GL_ATI_texture_env_combine3",
  95         "GL_ATI_texture_mirror_once",
  96         "GL_MESA_pack_invert",
  97         "GL_MESA_ycbcr_texture",
  98         "GL_NV_blend_square",
  99         "GL_NV_vertex_program",
 100         "GL_SGIS_generate_mipmap",
 101         NULL
 102 };
 103
 104 extern struct tnl_pipeline_stage _r300_render_stage;
 105
 106 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 107
 108         /* Try and go straight to t&l
 109          */
 110 //      &_r300_tcl_stage,
 111
 112         /* Catch any t&l fallbacks
 113          */
 114         &_tnl_vertex_transform_stage,
 115         &_tnl_normal_transform_stage,
 116         &_tnl_lighting_stage,
 117         &_tnl_fog_coordinate_stage,
 118         &_tnl_texgen_stage,
 119         &_tnl_texture_transform_stage,
 120         &_tnl_vertex_program_stage,
 121
 122         /* Try again to go to tcl?
 123          *     - no good for asymmetric-twoside (do with multipass)
 124          *     - no good for asymmetric-unfilled (do with multipass)
 125          *     - good for material
 126          *     - good for texgen
 127          *     - need to manipulate a bit of state
 128          *
 129          * - worth it/not worth it?
 130          */
 131
 132         /* Else do them here.
 133          */
 134         &_r300_render_stage,
 135         &_tnl_render_stage,     /* FALLBACK  */
 136         0,
 137 };
 138
 139 /* Create the device specific rendering context.
 140  */
 141 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 142                             __DRIcontextPrivate * driContextPriv,
 143                             void *sharedContextPrivate)
 144 {
 145         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 146         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 147         struct dd_function_table functions;
 148         r300ContextPtr r300;
 149         GLcontext *ctx;
 150         int tcl_mode, i;
 151
 152         assert(glVisual);
 153         assert(driContextPriv);
 154         assert(screen);
 155
 156         /* Allocate the R300 context */
 157         r300 = (r300ContextPtr)CALLOC(sizeof(*r300));
 158         if (!r300)
 159                 return GL_FALSE;
 160
 161         /* Parse configuration files.
 162          * Do this here so that initialMaxAnisotropy is set before we create
 163          * the default textures.
 164          */
 165         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 166                             screen->driScreen->myNum, "r300");
 167
 168         /* Init default driver functions then plug in our R300-specific functions
 169          * (the texture functions are especially important)
 170          */
 171         _mesa_init_driver_functions(&functions);
 172         r300InitIoctlFuncs(&functions);
 173         r300InitStateFuncs(&functions);
 174         r300InitTextureFuncs(&functions);
 175         r300InitVertexProgFuncs(&functions);
 176
 177         if (!radeonInitContext(&r300->radeon, &functions,
 178                                glVisual, driContextPriv, sharedContextPrivate)) {
 179                 FREE(r300);
 180                 return GL_FALSE;
 181         }
 182
 183         /* Init r300 context data */
 184         r300->dma.buf0_address = r300->radeon.radeonScreen->buffers->list[0].address;
 185
 186         (void)memset(r300->texture_heaps, 0, sizeof(r300->texture_heaps));
 187         make_empty_list(&r300->swapped);
 188
 189         r300->nr_heaps = 1 /* screen->numTexHeaps */ ;
 190         assert(r300->nr_heaps < R200_NR_TEX_HEAPS);
 191         for (i = 0; i < r300->nr_heaps; i++) {
 192                 r300->texture_heaps[i] = driCreateTextureHeap(i, r300,
 193                                                                screen->
 194                                                                texSize[i], 12,
 195                                                                RADEON_NR_TEX_REGIONS,
 196                                                                (drmTextureRegionPtr)
 197                                                                r300->radeon.sarea->
 198                                                                tex_list[i],
 199                                                                &r300->radeon.sarea->
 200                                                                tex_age[i],
 201                                                                &r300->swapped,
 202                                                                sizeof
 203                                                                (r300TexObj),
 204                                                                (destroy_texture_object_t
 205                                                                 *)
 206                                                                r300DestroyTexObj);
 207         }
 208         r300->texture_depth = driQueryOptioni(&r300->radeon.optionCache,
 209                                                "texture_depth");
 210         if (r300->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
 211                 r300->texture_depth = (screen->cpp == 4) ?
 212                     DRI_CONF_TEXTURE_DEPTH_32 : DRI_CONF_TEXTURE_DEPTH_16;
 213
 214         /* Set the maximum texture size small enough that we can guarentee that
 215          * all texture units can bind a maximal texture and have them both in
 216          * texturable memory at once.
 217          */
 218
 219         ctx = r300->radeon.glCtx;
 220
 221         ctx->Const.MaxTextureImageUnits = driQueryOptioni(&r300->radeon.optionCache,
 222                                                      "texture_image_units");
 223         ctx->Const.MaxTextureCoordUnits = driQueryOptioni(&r300->radeon.optionCache,
 224                                                      "texture_coord_units");
 225         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 226                                           ctx->Const.MaxTextureCoordUnits);
 227         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 228
 229         ctx->Const.MinPointSize = 1.0;
 230         ctx->Const.MinPointSizeAA = 1.0;
 231         ctx->Const.MaxPointSize = R300_POINTSIZE_MAX;
 232         ctx->Const.MaxPointSizeAA = R300_POINTSIZE_MAX;
 233
 234         ctx->Const.MinLineWidth = 1.0;
 235         ctx->Const.MinLineWidthAA = 1.0;
 236         ctx->Const.MaxLineWidth = R300_LINESIZE_MAX;
 237         ctx->Const.MaxLineWidthAA = R300_LINESIZE_MAX;
 238
 239         /* Initialize the software rasterizer and helper modules.
 240          */
 241         _swrast_CreateContext(ctx);
 242         _ac_CreateContext(ctx);
 243         _tnl_CreateContext(ctx);
 244         _swsetup_CreateContext(ctx);
 245         _ae_create_context(ctx);
 246
 247         /* Install the customized pipeline:
 248          */
 249         _tnl_destroy_pipeline(ctx);
 250         _tnl_install_pipeline(ctx, r300_pipeline);
 251
 252         /* Try and keep materials and vertices separate:
 253          */
 254         _tnl_isolate_materials(ctx, GL_TRUE);
 255
 256         /* Configure swrast and TNL to match hardware characteristics:
 257          */
 258         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 259         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 260         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 261         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 262
 263 #if 0
 264         //if(driQueryOptionb(&rmesa->optionCache, "arb_vertex_program"))
 265                 _mesa_enable_extension( ctx, "GL_ARB_vertex_program");
 266         //if(driQueryOptionb(&rmesa->optionCache, "nv_vertex_program"))
 267                 _mesa_enable_extension( ctx, "GL_NV_vertex_program");
 268 #endif
 269         /* currently bogus data */
 270         ctx->Const.MaxVertexProgramInstructions=128;
 271         ctx->Const.MaxVertexProgramAttribs=64;
 272         ctx->Const.MaxVertexProgramTemps=64;
 273         ctx->Const.MaxVertexProgramLocalParams=64;
 274         ctx->Const.MaxVertexProgramEnvParams=64;
 275         ctx->Const.MaxVertexProgramAddressRegs=8;
 276
 277         driInitExtensions(ctx, card_extensions, GL_TRUE);
 278
 279         radeonInitSpanFuncs(ctx);
 280         r300InitCmdBuf(r300);
 281         r300InitState(r300);
 282
 283 #if 0
 284         /* plug in a few more device driver functions */
 285         /* XXX these should really go right after _mesa_init_driver_functions() */
 286         r300InitPixelFuncs(ctx);
 287         r300InitSwtcl(ctx);
 288 #endif
 289         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 290
 291         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 292         if (driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 293                 fprintf(stderr, "disabling 3D acceleration\n");
 294                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 295         }
 296         if (tcl_mode == DRI_CONF_TCL_SW ||
 297             !(r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL)) {
 298                 if (r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL) {
 299                         r300->radeon.radeonScreen->chipset &= ~RADEON_CHIPSET_TCL;
 300                         fprintf(stderr, "Disabling HW TCL support\n");
 301                 }
 302                 TCL_FALLBACK(r300->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 303         }
 304
 305         return GL_TRUE;
 306 }
 307
 308 /* Destroy the device specific context.
 309  */
 310 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 311 {
 312         GET_CURRENT_CONTEXT(ctx);
 313         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 314         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 315
 316         fprintf(stderr, "Destroying context !\n");
 317         sleep(1);
 318         /* check if we're deleting the currently bound context */
 319         if (&r300->radeon == current) {
 320                 radeonFlush(r300->radeon.glCtx);
 321                 _mesa_make_current2(NULL, NULL, NULL);
 322         }
 323
 324         /* Free r300 context resources */
 325         assert(r300);           /* should never be null */
 326
 327         if (r300) {
 328                 GLboolean release_texture_heaps;
 329
 330                 release_texture_heaps = (r300->radeon.glCtx->Shared->RefCount == 1);
 331                 _swsetup_DestroyContext(r300->radeon.glCtx);
 332                 _tnl_DestroyContext(r300->radeon.glCtx);
 333                 _ac_DestroyContext(r300->radeon.glCtx);
 334                 _swrast_DestroyContext(r300->radeon.glCtx);
 335
 336                 r300DestroyCmdBuf(r300);
 337
 338                 radeonCleanupContext(&r300->radeon);
 339
 340                 /* free the option cache */
 341                 driDestroyOptionCache(&r300->radeon.optionCache);
 342
 343                 FREE(r300);
 344         }
 345 }