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
  36 #include "glheader.h"
  37 #include "api_arrayelt.h"
  38 #include "context.h"
  39 #include "simple_list.h"
  40 #include "imports.h"
  41 #include "matrix.h"
  42 #include "extensions.h"
  43 #include "state.h"
  44
  45 #include "swrast/swrast.h"
  46 #include "swrast_setup/swrast_setup.h"
  47 #include "array_cache/acache.h"
  48
  49 #include "tnl/tnl.h"
  50 #include "tnl/t_pipeline.h"
  51
  52 #include "drivers/common/driverfuncs.h"
  53
  54 #include "radeon_ioctl.h"
  55 #include "radeon_span.h"
  56 #include "r300_context.h"
  57 #include "r300_cmdbuf.h"
  58 #include "r300_state.h"
  59 #include "r300_ioctl.h"
  60 #include "r300_tex.h"
  61
  62 #include "vblank.h"
  63 #include "utils.h"
  64 #include "xmlpool.h"            /* for symbolic values of enum-type options */
  65
  66
  67 /* Extension strings exported by the R300 driver.
  68  */
  69 static const char *const card_extensions[] = {
  70         "GL_ARB_multisample",
  71         "GL_ARB_multitexture",
  72         "GL_ARB_texture_border_clamp",
  73         "GL_ARB_texture_compression",
  74         "GL_ARB_texture_cube_map",
  75         "GL_ARB_texture_env_add",
  76         "GL_ARB_texture_env_combine",
  77         "GL_ARB_texture_env_dot3",
  78         "GL_ARB_texture_mirrored_repeat",
  79         "GL_ARB_vertex_buffer_object",
  80         "GL_ARB_vertex_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
 140 /* Create the device specific rendering context.
 141  */
 142 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 143                             __DRIcontextPrivate * driContextPriv,
 144                             void *sharedContextPrivate)
 145 {
 146         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 147         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 148         struct dd_function_table functions;
 149         r300ContextPtr r300;
 150         GLcontext *ctx;
 151         int tcl_mode, i;
 152
 153         assert(glVisual);
 154         assert(driContextPriv);
 155         assert(screen);
 156
 157         /* Allocate the R300 context */
 158         r300 = (r300ContextPtr)CALLOC(sizeof(*r300));
 159         if (!r300)
 160                 return GL_FALSE;
 161
 162         /* Parse configuration files.
 163          * Do this here so that initialMaxAnisotropy is set before we create
 164          * the default textures.
 165          */
 166         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 167                             screen->driScreen->myNum, "r300");
 168
 169         /* Init default driver functions then plug in our R300-specific functions
 170          * (the texture functions are especially important)
 171          */
 172         _mesa_init_driver_functions(&functions);
 173         r300InitIoctlFuncs(&functions);
 174         r300InitStateFuncs(&functions);
 175         r300InitTextureFuncs(&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         ctx->Const.MaxTextureImageUnits = driQueryOptioni(&r300->radeon.optionCache,
 221                                                      "texture_image_units");
 222         ctx->Const.MaxTextureCoordUnits = driQueryOptioni(&r300->radeon.optionCache,
 223                                                      "texture_coord_units");
 224         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 225                                           ctx->Const.MaxTextureCoordUnits);
 226         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 227
 228         /* No wide points.
 229          */
 230         ctx->Const.MinPointSize = 1.0;
 231         ctx->Const.MinPointSizeAA = 1.0;
 232         ctx->Const.MaxPointSize = 1.0;
 233         ctx->Const.MaxPointSizeAA = 1.0;
 234
 235         ctx->Const.MinLineWidth = 1.0;
 236         ctx->Const.MinLineWidthAA = 1.0;
 237         ctx->Const.MaxLineWidth = 1.0;
 238         ctx->Const.MaxLineWidthAA = 1.0;
 239
 240         /* Initialize the software rasterizer and helper modules.
 241          */
 242         _swrast_CreateContext(ctx);
 243         _ac_CreateContext(ctx);
 244         _tnl_CreateContext(ctx);
 245         _swsetup_CreateContext(ctx);
 246         _ae_create_context(ctx);
 247
 248         /* Install the customized pipeline:
 249          */
 250         _tnl_destroy_pipeline(ctx);
 251         _tnl_install_pipeline(ctx, r300_pipeline);
 252
 253         /* Try and keep materials and vertices separate:
 254          */
 255         _tnl_isolate_materials(ctx, GL_TRUE);
 256
 257         /* Configure swrast and TNL to match hardware characteristics:
 258          */
 259         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 260         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 261         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 262         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 263
 264         driInitExtensions(ctx, card_extensions, GL_TRUE);
 265
 266         radeonInitSpanFuncs(ctx);
 267         r300InitCmdBuf(r300);
 268         r300InitState(r300);
 269 #if 0
 270         /* plug in a few more device driver functions */
 271         /* XXX these should really go right after _mesa_init_driver_functions() */
 272         r300InitPixelFuncs(ctx);
 273         r300InitSwtcl(ctx);
 274 #endif
 275         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 276
 277         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 278         if (1 ||
 279             driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 280                 fprintf(stderr, "disabling 3D acceleration\n");
 281                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 282         }
 283         if (tcl_mode == DRI_CONF_TCL_SW ||
 284             !(r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL)) {
 285                 if (r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL) {
 286                         r300->radeon.radeonScreen->chipset &= ~RADEON_CHIPSET_TCL;
 287                         fprintf(stderr, "Disabling HW TCL support\n");
 288                 }
 289                 TCL_FALLBACK(r300->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 290         }
 291
 292         return GL_TRUE;
 293 }
 294
 295 /* Destroy the device specific context.
 296  */
 297 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 298 {
 299         GET_CURRENT_CONTEXT(ctx);
 300         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 301         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 302
 303         /* check if we're deleting the currently bound context */
 304         if (&r300->radeon == current) {
 305                 radeonFlush(r300->radeon.glCtx);
 306                 _mesa_make_current2(NULL, NULL, NULL);
 307         }
 308
 309         /* Free r300 context resources */
 310         assert(r300);           /* should never be null */
 311
 312         if (r300) {
 313                 GLboolean release_texture_heaps;
 314
 315                 release_texture_heaps = (r300->radeon.glCtx->Shared->RefCount == 1);
 316                 _swsetup_DestroyContext(r300->radeon.glCtx);
 317                 _tnl_DestroyContext(r300->radeon.glCtx);
 318                 _ac_DestroyContext(r300->radeon.glCtx);
 319                 _swrast_DestroyContext(r300->radeon.glCtx);
 320
 321                 r300DestroyCmdBuf(r300);
 322
 323                 radeonCleanupContext(&r300->radeon);
 324
 325                 /* free the option cache */
 326                 driDestroyOptionCache(&r300->radeon.optionCache);
 327
 328                 FREE(r300);
 329         }
 330 }