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 extern struct tnl_pipeline_stage _r300_render_stage;
 104
 105 static const struct tnl_pipeline_stage *r300_pipeline[] = {
 106
 107         /* Try and go straight to t&l
 108          */
 109 //      &_r300_tcl_stage,
 110
 111         /* Catch any t&l fallbacks
 112          */
 113         &_tnl_vertex_transform_stage,
 114         &_tnl_normal_transform_stage,
 115         &_tnl_lighting_stage,
 116         &_tnl_fog_coordinate_stage,
 117         &_tnl_texgen_stage,
 118         &_tnl_texture_transform_stage,
 119         &_tnl_vertex_program_stage,
 120
 121         /* Try again to go to tcl?
 122          *     - no good for asymmetric-twoside (do with multipass)
 123          *     - no good for asymmetric-unfilled (do with multipass)
 124          *     - good for material
 125          *     - good for texgen
 126          *     - need to manipulate a bit of state
 127          *
 128          * - worth it/not worth it?
 129          */
 130
 131         /* Else do them here.
 132          */
 133         &_r300_render_stage,
 134         &_tnl_render_stage,     /* FALLBACK  */
 135         0,
 136 };
 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;
 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         //r200InitTextureFuncs(&functions);
 175
 176         if (!radeonInitContext(&r300->radeon, &functions,
 177                                glVisual, driContextPriv, sharedContextPrivate)) {
 178                 FREE(r300);
 179                 return GL_FALSE;
 180         }
 181
 182         /* Init r300 context data */
 183
 184         /* Set the maximum texture size small enough that we can guarentee that
 185          * all texture units can bind a maximal texture and have them both in
 186          * texturable memory at once.
 187          */
 188
 189         ctx = r300->radeon.glCtx;
 190         ctx->Const.MaxTextureImageUnits = driQueryOptioni(&r300->radeon.optionCache,
 191                                                      "texture_image_units");
 192         ctx->Const.MaxTextureCoordUnits = driQueryOptioni(&r300->radeon.optionCache,
 193                                                      "texture_coord_units");
 194         ctx->Const.MaxTextureUnits = MIN2(ctx->Const.MaxTextureImageUnits,
 195                                           ctx->Const.MaxTextureCoordUnits);
 196         ctx->Const.MaxTextureMaxAnisotropy = 16.0;
 197
 198         /* No wide points.
 199          */
 200         ctx->Const.MinPointSize = 1.0;
 201         ctx->Const.MinPointSizeAA = 1.0;
 202         ctx->Const.MaxPointSize = 1.0;
 203         ctx->Const.MaxPointSizeAA = 1.0;
 204
 205         ctx->Const.MinLineWidth = 1.0;
 206         ctx->Const.MinLineWidthAA = 1.0;
 207         ctx->Const.MaxLineWidth = 1.0;
 208         ctx->Const.MaxLineWidthAA = 1.0;
 209
 210         /* Initialize the software rasterizer and helper modules.
 211          */
 212         _swrast_CreateContext(ctx);
 213         _ac_CreateContext(ctx);
 214         _tnl_CreateContext(ctx);
 215         _swsetup_CreateContext(ctx);
 216         _ae_create_context(ctx);
 217
 218         /* Install the customized pipeline:
 219          */
 220         _tnl_destroy_pipeline(ctx);
 221         _tnl_install_pipeline(ctx, r300_pipeline);
 222
 223         /* Try and keep materials and vertices separate:
 224          */
 225         _tnl_isolate_materials(ctx, GL_TRUE);
 226
 227         /* Configure swrast and TNL to match hardware characteristics:
 228          */
 229         _swrast_allow_pixel_fog(ctx, GL_FALSE);
 230         _swrast_allow_vertex_fog(ctx, GL_TRUE);
 231         _tnl_allow_pixel_fog(ctx, GL_FALSE);
 232         _tnl_allow_vertex_fog(ctx, GL_TRUE);
 233
 234         driInitExtensions(ctx, card_extensions, GL_TRUE);
 235
 236         radeonInitSpanFuncs(ctx);
 237         r300InitCmdBuf(r300);
 238         r300InitState(r300);
 239 #if 0
 240         /* plug in a few more device driver functions */
 241         /* XXX these should really go right after _mesa_init_driver_functions() */
 242         r200InitPixelFuncs(ctx);
 243         r200InitSwtcl(ctx);
 244 #endif
 245         TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
 246
 247         tcl_mode = driQueryOptioni(&r300->radeon.optionCache, "tcl_mode");
 248         if (1 ||
 249             driQueryOptionb(&r300->radeon.optionCache, "no_rast")) {
 250                 fprintf(stderr, "disabling 3D acceleration\n");
 251                 FALLBACK(&r300->radeon, RADEON_FALLBACK_DISABLE, 1);
 252         }
 253         if (tcl_mode == DRI_CONF_TCL_SW ||
 254             !(r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL)) {
 255                 if (r300->radeon.radeonScreen->chipset & RADEON_CHIPSET_TCL) {
 256                         r300->radeon.radeonScreen->chipset &= ~RADEON_CHIPSET_TCL;
 257                         fprintf(stderr, "Disabling HW TCL support\n");
 258                 }
 259                 TCL_FALLBACK(r300->radeon.glCtx, RADEON_TCL_FALLBACK_TCL_DISABLE, 1);
 260         }
 261
 262         return GL_TRUE;
 263 }
 264
 265 /* Destroy the device specific context.
 266  */
 267 void r300DestroyContext(__DRIcontextPrivate * driContextPriv)
 268 {
 269         GET_CURRENT_CONTEXT(ctx);
 270         r300ContextPtr r300 = (r300ContextPtr) driContextPriv->driverPrivate;
 271         radeonContextPtr current = ctx ? RADEON_CONTEXT(ctx) : NULL;
 272
 273         /* check if we're deleting the currently bound context */
 274         if (&r300->radeon == current) {
 275                 radeonFlush(r300->radeon.glCtx);
 276                 _mesa_make_current2(NULL, NULL, NULL);
 277         }
 278
 279         /* Free r300 context resources */
 280         assert(r300);           /* should never be null */
 281
 282         if (r300) {
 283                 GLboolean release_texture_heaps;
 284
 285                 release_texture_heaps = (r300->radeon.glCtx->Shared->RefCount == 1);
 286                 _swsetup_DestroyContext(r300->radeon.glCtx);
 287                 _tnl_DestroyContext(r300->radeon.glCtx);
 288                 _ac_DestroyContext(r300->radeon.glCtx);
 289                 _swrast_DestroyContext(r300->radeon.glCtx);
 290
 291                 r300DestroyCmdBuf(r300);
 292
 293                 radeonCleanupContext(&r300->radeon);
 294
 295                 /* free the option cache */
 296                 driDestroyOptionCache(&r300->radeon.optionCache);
 297
 298                 FREE(r300);
 299         }
 300 }