src/mesa/drivers/dri/mach64/mach64_context.c

   1 /* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
   2 /*
   3  * Copyright 2000 Gareth Hughes
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /*
  26  * Authors:
  27  *      Gareth Hughes <gareth@valinux.com>
  28  *      Leif Delgass <ldelgass@retinalburn.net>
  29  *      Jos�Fonseca <j_r_fonseca@yahoo.co.uk>
  30  */
  31
  32 #include "glheader.h"
  33 #include "context.h"
  34 #include "simple_list.h"
  35 #include "imports.h"
  36 #include "matrix.h"
  37 #include "extensions.h"
  38
  39 #include "swrast/swrast.h"
  40 #include "swrast_setup/swrast_setup.h"
  41 #include "vbo/vbo.h"
  42
  43 #include "tnl/tnl.h"
  44 #include "tnl/t_pipeline.h"
  45
  46 #include "drivers/common/driverfuncs.h"
  47
  48 #include "mach64_context.h"
  49 #include "mach64_ioctl.h"
  50 #include "mach64_dd.h"
  51 #include "mach64_span.h"
  52 #include "mach64_state.h"
  53 #include "mach64_tex.h"
  54 #include "mach64_tris.h"
  55 #include "mach64_vb.h"
  56
  57 #include "utils.h"
  58 #include "vblank.h"
  59
  60 #define need_GL_ARB_multisample
  61 #include "extension_helper.h"
  62
  63 #ifndef MACH64_DEBUG
  64 int MACH64_DEBUG = (0);
  65 #endif
  66
  67 static const struct dri_debug_control debug_control[] =
  68 {
  69     { "sync",   DEBUG_ALWAYS_SYNC },
  70     { "api",    DEBUG_VERBOSE_API },
  71     { "msg",    DEBUG_VERBOSE_MSG },
  72     { "lru",    DEBUG_VERBOSE_LRU },
  73     { "dri",    DEBUG_VERBOSE_DRI },
  74     { "ioctl",  DEBUG_VERBOSE_IOCTL },
  75     { "prims",  DEBUG_VERBOSE_PRIMS },
  76     { "count",  DEBUG_VERBOSE_COUNT },
  77     { "nowait", DEBUG_NOWAIT },
  78     { "fall",   DEBUG_VERBOSE_FALLBACK },
  79     { NULL,    0 }
  80 };
  81
  82 const struct dri_extension card_extensions[] =
  83 {
  84     { "GL_ARB_multisample",                GL_ARB_multisample_functions },
  85     { "GL_ARB_multitexture",               NULL },
  86     { "GL_EXT_texture_edge_clamp",         NULL },
  87     { "GL_MESA_ycbcr_texture",             NULL },
  88     { "GL_SGIS_generate_mipmap",           NULL },
  89     { NULL,                                NULL }
  90 };
  91
  92
  93 /* Create the device specific context.
  94   */
  95 GLboolean mach64CreateContext( const __GLcontextModes *glVisual,
  96                                __DRIcontextPrivate *driContextPriv,
  97                                void *sharedContextPrivate )
  98 {
  99    GLcontext *ctx, *shareCtx;
 100    __DRIscreenPrivate *driScreen = driContextPriv->driScreenPriv;
 101    struct dd_function_table functions;
 102    mach64ContextPtr mmesa;
 103    mach64ScreenPtr mach64Screen;
 104    int i, heap;
 105    GLuint *c_textureSwapsPtr = NULL;
 106
 107 #if DO_DEBUG
 108    MACH64_DEBUG = driParseDebugString(getenv("MACH64_DEBUG"), debug_control);
 109 #endif
 110
 111    /* Allocate the mach64 context */
 112    mmesa = (mach64ContextPtr) CALLOC( sizeof(*mmesa) );
 113    if ( !mmesa )
 114       return GL_FALSE;
 115
 116    /* Init default driver functions then plug in our Mach64-specific functions
 117     * (the texture functions are especially important)
 118     */
 119    _mesa_init_driver_functions( &functions );
 120    mach64InitDriverFuncs( &functions );
 121    mach64InitIoctlFuncs( &functions );
 122    mach64InitTextureFuncs( &functions );
 123
 124    /* Allocate the Mesa context */
 125    if (sharedContextPrivate)
 126       shareCtx = ((mach64ContextPtr) sharedContextPrivate)->glCtx;
 127    else
 128       shareCtx = NULL;
 129    mmesa->glCtx = _mesa_create_context(glVisual, shareCtx,
 130                                         &functions, (void *)mmesa);
 131    if (!mmesa->glCtx) {
 132       FREE(mmesa);
 133       return GL_FALSE;
 134    }
 135    driContextPriv->driverPrivate = mmesa;
 136    ctx = mmesa->glCtx;
 137
 138    mmesa->driContext = driContextPriv;
 139    mmesa->driScreen = driScreen;
 140    mmesa->driDrawable = NULL;
 141    mmesa->hHWContext = driContextPriv->hHWContext;
 142    mmesa->driHwLock = &driScreen->pSAREA->lock;
 143    mmesa->driFd = driScreen->fd;
 144
 145    mach64Screen = mmesa->mach64Screen = (mach64ScreenPtr)driScreen->private;
 146
 147    /* Parse configuration files */
 148    driParseConfigFiles (&mmesa->optionCache, &mach64Screen->optionCache,
 149                         mach64Screen->driScreen->myNum, "mach64");
 150
 151    mmesa->sarea = (drm_mach64_sarea_t *)((char *)driScreen->pSAREA +
 152                                     sizeof(drm_sarea_t));
 153
 154    mmesa->CurrentTexObj[0] = NULL;
 155    mmesa->CurrentTexObj[1] = NULL;
 156
 157    (void) memset( mmesa->texture_heaps, 0, sizeof( mmesa->texture_heaps ) );
 158    make_empty_list( &mmesa->swapped );
 159
 160    mmesa->firstTexHeap = mach64Screen->firstTexHeap;
 161    mmesa->lastTexHeap = mach64Screen->firstTexHeap + mach64Screen->numTexHeaps;
 162
 163    for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) {
 164       mmesa->texture_heaps[i] = driCreateTextureHeap( i, mmesa,
 165             mach64Screen->texSize[i],
 166             6, /* align to 64-byte boundary, use 12 for page-size boundary */
 167             MACH64_NR_TEX_REGIONS,
 168             (drmTextureRegionPtr)mmesa->sarea->tex_list[i],
 169             &mmesa->sarea->tex_age[i],
 170             &mmesa->swapped,
 171             sizeof( mach64TexObj ),
 172             (destroy_texture_object_t *) mach64DestroyTexObj );
 173
 174 #if ENABLE_PERF_BOXES
 175       c_textureSwapsPtr = & mmesa->c_textureSwaps;
 176 #endif
 177       driSetTextureSwapCounterLocation( mmesa->texture_heaps[i],
 178                                         c_textureSwapsPtr );
 179    }
 180
 181    mmesa->RenderIndex = -1;             /* Impossible value */
 182    mmesa->vert_buf = NULL;
 183    mmesa->num_verts = 0;
 184    mmesa->new_state = MACH64_NEW_ALL;
 185    mmesa->dirty = MACH64_UPLOAD_ALL;
 186
 187    /* Set the maximum texture size small enough that we can
 188     * guarentee that both texture units can bind a maximal texture
 189     * and have them both in memory (on-card or AGP) at once.
 190     * Test for 2 textures * bytes/texel * size * size.  There's no
 191     * need to account for mipmaps since we only upload one level.
 192     */
 193
 194    ctx->Const.MaxTextureUnits = 2;
 195    ctx->Const.MaxTextureImageUnits = 2;
 196    ctx->Const.MaxTextureCoordUnits = 2;
 197
 198    heap = mach64Screen->IsPCI ? MACH64_CARD_HEAP : MACH64_AGP_HEAP;
 199
 200    driCalculateMaxTextureLevels( & mmesa->texture_heaps[heap],
 201                                  1,
 202                                  & ctx->Const,
 203                                  mach64Screen->cpp,
 204                                  10, /* max 2D texture size is 1024x1024 */
 205                                  0,  /* 3D textures unsupported. */
 206                                  0,  /* cube textures unsupported. */
 207                                  0,  /* texture rectangles unsupported. */
 208                                  1,  /* mipmapping unsupported. */
 209                                  GL_TRUE, /* need to have both textures in
 210                                              either local or AGP memory */
 211                                  0 );
 212
 213 #if ENABLE_PERF_BOXES
 214    mmesa->boxes = ( getenv( "LIBGL_PERFORMANCE_BOXES" ) != NULL );
 215 #endif
 216
 217    /* Allocate the vertex buffer
 218     */
 219    mmesa->vert_buf = ALIGN_MALLOC(MACH64_BUFFER_SIZE, 32);
 220    if ( !mmesa->vert_buf )
 221       return GL_FALSE;
 222    mmesa->vert_used = 0;
 223    mmesa->vert_total = MACH64_BUFFER_SIZE;
 224
 225    /* Initialize the software rasterizer and helper modules.
 226     */
 227    _swrast_CreateContext( ctx );
 228    _vbo_CreateContext( ctx );
 229    _tnl_CreateContext( ctx );
 230    _swsetup_CreateContext( ctx );
 231
 232    /* Install the customized pipeline:
 233     */
 234 /*     _tnl_destroy_pipeline( ctx ); */
 235 /*     _tnl_install_pipeline( ctx, mach64_pipeline ); */
 236
 237    /* Configure swrast and T&L to match hardware characteristics:
 238     */
 239    _swrast_allow_pixel_fog( ctx, GL_FALSE );
 240    _swrast_allow_vertex_fog( ctx, GL_TRUE );
 241    _tnl_allow_pixel_fog( ctx, GL_FALSE );
 242    _tnl_allow_vertex_fog( ctx, GL_TRUE );
 243
 244    driInitExtensions( ctx, card_extensions, GL_TRUE );
 245
 246    mach64InitVB( ctx );
 247    mach64InitTriFuncs( ctx );
 248    mach64DDInitStateFuncs( ctx );
 249    mach64DDInitSpanFuncs( ctx );
 250    mach64DDInitState( mmesa );
 251
 252    mmesa->do_irqs = (mmesa->mach64Screen->irq && !getenv("MACH64_NO_IRQS"));
 253
 254    mmesa->vblank_flags = (mmesa->do_irqs)
 255       ? driGetDefaultVBlankFlags(&mmesa->optionCache) : VBLANK_FLAG_NO_IRQ;
 256
 257    driContextPriv->driverPrivate = (void *)mmesa;
 258
 259    if (driQueryOptionb(&mmesa->optionCache, "no_rast")) {
 260       fprintf(stderr, "disabling 3D acceleration\n");
 261       FALLBACK(mmesa, MACH64_FALLBACK_DISABLE, 1);
 262    }
 263
 264    return GL_TRUE;
 265 }
 266
 267 /* Destroy the device specific context.
 268  */
 269 void mach64DestroyContext( __DRIcontextPrivate *driContextPriv  )
 270 {
 271    mach64ContextPtr mmesa = (mach64ContextPtr) driContextPriv->driverPrivate;
 272
 273    assert(mmesa);  /* should never be null */
 274    if ( mmesa ) {
 275       GLboolean   release_texture_heaps;
 276
 277       release_texture_heaps = (mmesa->glCtx->Shared->RefCount == 1);
 278
 279       _swsetup_DestroyContext( mmesa->glCtx );
 280       _tnl_DestroyContext( mmesa->glCtx );
 281       _vbo_DestroyContext( mmesa->glCtx );
 282       _swrast_DestroyContext( mmesa->glCtx );
 283
 284       if (release_texture_heaps) {
 285          /* This share group is about to go away, free our private
 286           * texture object data.
 287           */
 288          int i;
 289
 290          for ( i = mmesa->firstTexHeap ; i < mmesa->lastTexHeap ; i++ ) {
 291             driDestroyTextureHeap( mmesa->texture_heaps[i] );
 292             mmesa->texture_heaps[i] = NULL;
 293          }
 294
 295          assert( is_empty_list( & mmesa->swapped ) );
 296       }
 297
 298       mach64FreeVB( mmesa->glCtx );
 299
 300       /* Free the vertex buffer */
 301       if ( mmesa->vert_buf )
 302          ALIGN_FREE( mmesa->vert_buf );
 303
 304       /* free the Mesa context */
 305       mmesa->glCtx->DriverCtx = NULL;
 306       _mesa_destroy_context(mmesa->glCtx);
 307
 308       FREE( mmesa );
 309    }
 310 }
 311
 312 /* Force the context `c' to be the current context and associate with it
 313  * buffer `b'.
 314  */
 315 GLboolean
 316 mach64MakeCurrent( __DRIcontextPrivate *driContextPriv,
 317                  __DRIdrawablePrivate *driDrawPriv,
 318                  __DRIdrawablePrivate *driReadPriv )
 319 {
 320    if ( driContextPriv ) {
 321       GET_CURRENT_CONTEXT(ctx);
 322       mach64ContextPtr oldMach64Ctx = ctx ? MACH64_CONTEXT(ctx) : NULL;
 323       mach64ContextPtr newMach64Ctx = (mach64ContextPtr) driContextPriv->driverPrivate;
 324
 325       if ( newMach64Ctx != oldMach64Ctx ) {
 326          newMach64Ctx->new_state |= MACH64_NEW_CONTEXT;
 327          newMach64Ctx->dirty = MACH64_UPLOAD_ALL;
 328       }
 329
 330
 331       driDrawableInitVBlank( driDrawPriv, newMach64Ctx->vblank_flags,
 332                              &newMach64Ctx->vbl_seq );
 333
 334       if ( newMach64Ctx->driDrawable != driDrawPriv ) {
 335          newMach64Ctx->driDrawable = driDrawPriv;
 336          mach64CalcViewport( newMach64Ctx->glCtx );
 337       }
 338
 339       _mesa_make_current( newMach64Ctx->glCtx,
 340                           (GLframebuffer *) driDrawPriv->driverPrivate,
 341                           (GLframebuffer *) driReadPriv->driverPrivate );
 342
 343
 344       newMach64Ctx->new_state |=  MACH64_NEW_CLIP;
 345    } else {
 346       _mesa_make_current( NULL, NULL, NULL );
 347    }
 348
 349    return GL_TRUE;
 350 }
 351
 352
 353 /* Force the context `c' to be unbound from its buffer.
 354  */
 355 GLboolean
 356 mach64UnbindContext( __DRIcontextPrivate *driContextPriv )
 357 {
 358    return GL_TRUE;
 359 }