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
  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_EXT_blend_equation_separate",
  81         "GL_EXT_blend_func_separate",
  82         "GL_EXT_blend_minmax",
  83         "GL_EXT_blend_subtract",
  84         "GL_EXT_secondary_color",
  85         "GL_EXT_stencil_wrap",
  86         "GL_EXT_texture_edge_clamp",
  87         "GL_EXT_texture_env_combine",
  88         "GL_EXT_texture_env_dot3",
  89         "GL_EXT_texture_filter_anisotropic",
  90         "GL_EXT_texture_lod_bias",
  91         "GL_EXT_texture_mirror_clamp",
  92         "GL_EXT_texture_rectangle",
  93         "GL_ATI_texture_env_combine3",
  94         "GL_ATI_texture_mirror_once",
  95         "GL_MESA_pack_invert",
  96         "GL_MESA_ycbcr_texture",
  97         "GL_NV_blend_square",
  98         "GL_NV_vertex_program",
  99         "GL_SGIS_generate_mipmap",
 100         NULL
 101 };
 102
 103 #if 0
 104 extern const struct tnl_pipeline_stage _r300_render_stage;
 105 extern const struct tnl_pipeline_stage _r300_tcl_stage;
 106
 107 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 108
 109         /* Try and go straight to t&l
 110          */
 111         &_r300_tcl_stage,
 112
 113         /* Catch any t&l fallbacks
 114          */
 115         &_tnl_vertex_transform_stage,
 116         &_tnl_normal_transform_stage,
 117         &_tnl_lighting_stage,
 118         &_tnl_fog_coordinate_stage,
 119         &_tnl_texgen_stage,
 120         &_tnl_texture_transform_stage,
 121         &_tnl_vertex_program_stage,
 122
 123         /* Try again to go to tcl?
 124          *     - no good for asymmetric-twoside (do with multipass)
 125          *     - no good for asymmetric-unfilled (do with multipass)
 126          *     - good for material
 127          *     - good for texgen
 128          *     - need to manipulate a bit of state
 129          *
 130          * - worth it/not worth it?
 131          */
 132
 133         /* Else do them here.
 134          */
 135         &_r300_render_stage,
 136         &_tnl_render_stage,     /* FALLBACK  */
 137         0,
 138 };
 139 #endif
 140
 141 /* Create the device specific rendering context.
 142  */
 143 GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 144                             __DRIcontextPrivate * driContextPriv,
 145                             void *sharedContextPrivate)
 146 {
 147         __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
 148         radeonScreenPtr screen = (radeonScreenPtr) (sPriv->private);
 149         struct dd_function_table functions;
 150         r300ContextPtr r300;
 151         GLcontext *ctx;
 152         int tcl_mode;
 153
 154         assert(glVisual);
 155         assert(driContextPriv);
 156         assert(screen);
 157
 158         /* Allocate the R300 context */
 159         r300 = (r300ContextPtr) CALLOC(sizeof(*r300));
 160         if (!r300)
 161                 return GL_FALSE;
 162
 163         /* Parse configuration files.
 164          * Do this here so that initialMaxAnisotropy is set before we create
 165          * the default textures.
 166          */
 167         driParseConfigFiles(&r300->radeon.optionCache, &screen->optionCache,
 168                             screen->driScreen->myNum, "r300");
 169
 170         /* Init default driver functions then plug in our R300-specific functions
 171          * (the texture functions are especially important)
 172          */
 173         _mesa_init_driver_functions(&functions);
 174         r300InitIoctlFuncs(&functions);
 175         //r200InitStateFuncs(&functions);
 176         //r200InitTextureFuncs(&functions);
 177
 178         if (!radeonInitContext(&r300->radeon, &functions,
 179                                glVisual, driContextPriv, sharedContextPrivate)) {
 180                 FREE(r300);
 181                 return GL_FALSE;
 182         }
 183
 184         /* Init r300 context data */
 185
 186         /* Set the maximum texture size small enough that we can guarentee that
 187          * all texture units can bind a maximal texture and have them both in
 188          * texturable memory at once.
 189          */
 190
 191         ctx = r300->radeon.glCtx;
 192         ctx->Const.MaxTextureImageUnits = driQueryOptioni(&r300->radeon.optionCache,
 193                                                      "texture_image_units");
 194         ctx->Const.MaxTextureCoordUnits = driQueryOptioni(&r300->radeon.optionCache,
 195                                                      "texture_coord_units");
 196         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 197                                           ctx->Const.MaxTextureCoordUnits);
 198         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 199
 200         /* No wide points.
 201          */
 202         ctx->Const.MinPointSize = 1.0;
 203         ctx->Const.MinPointSizeAA = 1.0;
 204         ctx->Const.MaxPointSize = 1.0;
 205         ctx->Const.MaxPointSizeAA = 1.0;
 206
 207         ctx->Const.MinLineWidth = 1.0;
 208         ctx->Const.MinLineWidthAA = 1.0;
 209         ctx->Const.MaxLineWidth = 1.0;
 210         ctx->Const.MaxLineWidthAA = 1.0;
 211
 212         /* Initialize the software rasterizer and helper modules.
 213          */
 214         _swrast_CreateContext(ctx);
 215         _ac_CreateContext(ctx);
 216         _tnl_CreateContext(ctx);
 217         _swsetup_CreateContext(ctx);
 218         _ae_create_context(ctx);
 219
 220 #if 0
 221         /* Install the customized pipeline:
 222          */
 223         _tnl_destroy_pipeline(ctx);
 224         _tnl_install_pipeline(ctx, r200_pipeline);
 225         ctx->Driver.FlushVertices = r200FlushVertices;
 226 #endif
 227
 228         /* Try and keep materials and vertices separate:
 229          */
 230         _tnl_isolate_materials(ctx, GL_TRUE);
 231
 232         /* Configure swrast and TNL to match hardware characteristics:
 233          */
 234         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 235         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 236         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 237         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 238
 239         driInitExtensions(ctx, card_extensions, GL_TRUE);
 240
 241         radeonInitSpanFuncs(ctx);
 242         r300InitCmdBuf(r300);
 243         r300InitState(r300);
 244 #if 0
 245         /* plug in a few more device driver functions */
 246         /* XXX these should really go right after _mesa_init_driver_functions() */
 247         r200InitPixelFuncs(ctx);
 248         r200InitTnlFuncs(ctx);
 249         r200InitSwtcl(ctx);
 250 #endif
 251         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 252
 253         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 254         if (1 ||
 255             driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 256                 fprintf(stderr, "disabling 3D acceleration\n");
 257                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 258         }
 259         if (tcl_mode == DRI_CONF_TCL_SW ||
 260             !(r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL)) {
 261                 if (r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL) {
 262                         r300->radeon.radeonScreen->chipset &= ~RADEON_CHIPSET_TCL;
 263                         fprintf(stderr, "Disabling HW TCL support\n");
 264                 }
 265                 TCL_FALLBACK(r300->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 266         }
 267
 268         return GL_TRUE;
 269 }
 270
 271 /* Destroy the device specific context.
 272  */
 273 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 274 {
 275         GET_CURRENT_CONTEXT(ctx);
 276         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 277         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 278
 279         /* check if we're deleting the currently bound context */
 280         if (&r300->radeon == current) {
 281                 radeonFlush(r300->radeon.glCtx);
 282                 _mesa_make_current2(NULL, NULL, NULL);
 283         }
 284
 285         /* Free r300 context resources */
 286         assert(r300);           /* should never be null */
 287
 288         if (r300) {
 289                 GLboolean release_texture_heaps;
 290
 291                 release_texture_heaps = (r300->radeon.glCtx->Shared->RefCount == 1);
 292                 _swsetup_DestroyContext(r300->radeon.glCtx);
 293                 _tnl_DestroyContext(r300->radeon.glCtx);
 294                 _ac_DestroyContext(r300->radeon.glCtx);
 295                 _swrast_DestroyContext(r300->radeon.glCtx);
 296
 297                 r300DestroyCmdBuf(r300);
 298
 299                 /* free the Mesa context */
 300                 r300->radeon.glCtx->DriverCtx = NULL;
 301                 _mesa_destroy_context(r300->radeon.glCtx);
 302
 303                 /* free the option cache */
 304                 driDestroyOptionCache(&r300->radeon.optionCache);
 305
 306                 FREE(r300);
 307         }
 308 }