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      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 <keithw (at) vmware.com>
     33  */
     34 
     35 #include <stdbool.h>
     36 #include "main/glheader.h"
     37 #include "main/api_arrayelt.h"
     38 #include "main/api_exec.h"
     39 #include "main/context.h"
     40 #include "main/imports.h"
     41 #include "main/extensions.h"
     42 #include "main/version.h"
     43 #include "main/vtxfmt.h"
     44 
     45 #include "swrast/swrast.h"
     46 #include "swrast_setup/swrast_setup.h"
     47 #include "vbo/vbo.h"
     48 
     49 #include "tnl/tnl.h"
     50 #include "tnl/t_pipeline.h"
     51 
     52 #include "drivers/common/driverfuncs.h"
     53 
     54 #include "r200_context.h"
     55 #include "r200_ioctl.h"
     56 #include "r200_state.h"
     57 #include "r200_tex.h"
     58 #include "r200_swtcl.h"
     59 #include "r200_tcl.h"
     60 #include "r200_vertprog.h"
     61 #include "radeon_queryobj.h"
     62 #include "r200_blit.h"
     63 #include "radeon_fog.h"
     64 
     65 #include "radeon_span.h"
     66 
     67 #include "utils.h"
     68 #include "util/xmlpool.h" /* for symbolic values of enum-type options */
     69 
     70 /* Return various strings for glGetString().
     71  */
     72 static const GLubyte *r200GetString( struct gl_context *ctx, GLenum name )
     73 {
     74    r200ContextPtr rmesa = R200_CONTEXT(ctx);
     75    static char buffer[128];
     76    unsigned   offset;
     77    GLuint agp_mode = (rmesa->radeon.radeonScreen->card_type == RADEON_CARD_PCI)? 0 :
     78       rmesa->radeon.radeonScreen->AGPMode;
     79 
     80    switch ( name ) {
     81    case GL_VENDOR:
     82       return (GLubyte *)"Mesa Project";
     83 
     84    case GL_RENDERER:
     85       offset = driGetRendererString( buffer, "R200", agp_mode );
     86 
     87       sprintf( & buffer[ offset ], " %sTCL",
     88 	       !(rmesa->radeon.TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
     89 	       ? "" : "NO-" );
     90 
     91       return (GLubyte *)buffer;
     92 
     93    default:
     94       return NULL;
     95    }
     96 }
     97 
     98 
     99 extern const struct tnl_pipeline_stage _r200_render_stage;
    100 extern const struct tnl_pipeline_stage _r200_tcl_stage;
    101 
    102 static const struct tnl_pipeline_stage *r200_pipeline[] = {
    103 
    104    /* Try and go straight to t&l
    105     */
    106    &_r200_tcl_stage,
    107 
    108    /* Catch any t&l fallbacks
    109     */
    110    &_tnl_vertex_transform_stage,
    111    &_tnl_normal_transform_stage,
    112    &_tnl_lighting_stage,
    113    &_tnl_fog_coordinate_stage,
    114    &_tnl_texgen_stage,
    115    &_tnl_texture_transform_stage,
    116    &_tnl_point_attenuation_stage,
    117    &_tnl_vertex_program_stage,
    118    /* Try again to go to tcl?
    119     *     - no good for asymmetric-twoside (do with multipass)
    120     *     - no good for asymmetric-unfilled (do with multipass)
    121     *     - good for material
    122     *     - good for texgen
    123     *     - need to manipulate a bit of state
    124     *
    125     * - worth it/not worth it?
    126     */
    127 
    128    /* Else do them here.
    129     */
    130 /*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
    131    &_tnl_render_stage,		/* FALLBACK:  */
    132    NULL,
    133 };
    134 
    135 
    136 
    137 /* Initialize the driver's misc functions.
    138  */
    139 static void r200InitDriverFuncs( struct dd_function_table *functions )
    140 {
    141     functions->GetString		= r200GetString;
    142 }
    143 
    144 
    145 static void r200_emit_query_finish(radeonContextPtr radeon)
    146 {
    147    BATCH_LOCALS(radeon);
    148    struct radeon_query_object *query = radeon->query.current;
    149 
    150    BEGIN_BATCH(4);
    151    OUT_BATCH(CP_PACKET0(RADEON_RB3D_ZPASS_ADDR, 0));
    152    OUT_BATCH_RELOC(0, query->bo, query->curr_offset, 0, RADEON_GEM_DOMAIN_GTT, 0);
    153    END_BATCH();
    154    query->curr_offset += sizeof(uint32_t);
    155    assert(query->curr_offset < RADEON_QUERY_PAGE_SIZE);
    156    query->emitted_begin = GL_FALSE;
    157 }
    158 
    159 static void r200_init_vtbl(radeonContextPtr radeon)
    160 {
    161    radeon->vtbl.swtcl_flush = r200_swtcl_flush;
    162    radeon->vtbl.fallback = r200Fallback;
    163    radeon->vtbl.update_scissor = r200_vtbl_update_scissor;
    164    radeon->vtbl.emit_query_finish = r200_emit_query_finish;
    165    radeon->vtbl.check_blit = r200_check_blit;
    166    radeon->vtbl.blit = r200_blit;
    167    radeon->vtbl.is_format_renderable = radeonIsFormatRenderable;
    168    radeon->vtbl.revalidate_all_buffers = r200ValidateBuffers;
    169 }
    170 
    171 
    172 /* Create the device specific rendering context.
    173  */
    174 GLboolean r200CreateContext( gl_api api,
    175 			     const struct gl_config *glVisual,
    176 			     __DRIcontext *driContextPriv,
    177 			     const struct __DriverContextConfig *ctx_config,
    178 			     unsigned *error,
    179 			     void *sharedContextPrivate)
    180 {
    181    __DRIscreen *sPriv = driContextPriv->driScreenPriv;
    182    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
    183    struct dd_function_table functions;
    184    r200ContextPtr rmesa;
    185    struct gl_context *ctx;
    186    int i;
    187    int tcl_mode;
    188 
    189    if (ctx_config->flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_NO_ERROR)) {
    190       *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
    191       return false;
    192    }
    193 
    194    if (ctx_config->attribute_mask) {
    195       *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
    196       return false;
    197    }
    198 
    199    assert(driContextPriv);
    200    assert(screen);
    201 
    202    /* Allocate the R200 context */
    203    rmesa = calloc(1, sizeof(*rmesa));
    204    if ( !rmesa ) {
    205       *error = __DRI_CTX_ERROR_NO_MEMORY;
    206       return GL_FALSE;
    207    }
    208 
    209    rmesa->radeon.radeonScreen = screen;
    210    r200_init_vtbl(&rmesa->radeon);
    211    /* init exp fog table data */
    212    radeonInitStaticFogData();
    213 
    214    /* Parse configuration files.
    215     * Do this here so that initialMaxAnisotropy is set before we create
    216     * the default textures.
    217     */
    218    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
    219 			screen->driScreen->myNum, "r200");
    220    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
    221 							"def_max_anisotropy");
    222 
    223    if (driQueryOptionb( &rmesa->radeon.optionCache, "hyperz"))
    224       rmesa->using_hyperz = GL_TRUE;
    225 
    226    /* Init default driver functions then plug in our R200-specific functions
    227     * (the texture functions are especially important)
    228     */
    229    _mesa_init_driver_functions(&functions);
    230    r200InitDriverFuncs(&functions);
    231    r200InitIoctlFuncs(&functions);
    232    r200InitStateFuncs(&rmesa->radeon, &functions);
    233    r200InitTextureFuncs(&rmesa->radeon, &functions);
    234    r200InitShaderFuncs(&functions);
    235    radeonInitQueryObjFunctions(&functions);
    236 
    237    if (!radeonInitContext(&rmesa->radeon, api, &functions,
    238 			  glVisual, driContextPriv,
    239 			  sharedContextPrivate)) {
    240      free(rmesa);
    241      *error = __DRI_CTX_ERROR_NO_MEMORY;
    242      return GL_FALSE;
    243    }
    244 
    245    rmesa->radeon.swtcl.RenderIndex = ~0;
    246    rmesa->radeon.hw.all_dirty = 1;
    247 
    248    ctx = &rmesa->radeon.glCtx;
    249 
    250    driContextSetFlags(ctx, ctx_config->flags);
    251 
    252    /* Initialize the software rasterizer and helper modules.
    253     */
    254    _swrast_CreateContext( ctx );
    255    _vbo_CreateContext( ctx );
    256    _tnl_CreateContext( ctx );
    257    _swsetup_CreateContext( ctx );
    258    _ae_create_context( ctx );
    259 
    260    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
    261 						 "texture_units");
    262    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
    263    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
    264 
    265    ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;
    266 
    267    ctx->Const.StripTextureBorder = GL_TRUE;
    268 
    269    /* FIXME: When no memory manager is available we should set this
    270     * to some reasonable value based on texture memory pool size */
    271    ctx->Const.MaxTextureLevels = 12;
    272    ctx->Const.Max3DTextureLevels = 9;
    273    ctx->Const.MaxCubeTextureLevels = 12;
    274    ctx->Const.MaxTextureRectSize = 2048;
    275    ctx->Const.MaxRenderbufferSize = 2048;
    276 
    277    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
    278 
    279    /* No wide AA points.
    280     */
    281    ctx->Const.MinPointSize = 1.0;
    282    ctx->Const.MinPointSizeAA = 1.0;
    283    ctx->Const.MaxPointSizeAA = 1.0;
    284    ctx->Const.PointSizeGranularity = 0.0625;
    285    ctx->Const.MaxPointSize = 2047.0;
    286 
    287    /* mesa initialization problem - _mesa_init_point was already called */
    288    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
    289 
    290    ctx->Const.MinLineWidth = 1.0;
    291    ctx->Const.MinLineWidthAA = 1.0;
    292    ctx->Const.MaxLineWidth = 10.0;
    293    ctx->Const.MaxLineWidthAA = 10.0;
    294    ctx->Const.LineWidthGranularity = 0.0625;
    295 
    296    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeInstructions = R200_VSF_MAX_INST;
    297    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAttribs = 12;
    298    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTemps = R200_VSF_MAX_TEMPS;
    299    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeParameters = R200_VSF_MAX_PARAM;
    300    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAddressRegs = 1;
    301 
    302    ctx->Const.MaxDrawBuffers = 1;
    303    ctx->Const.MaxColorAttachments = 1;
    304 
    305    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
    306 
    307    /* Install the customized pipeline:
    308     */
    309    _tnl_destroy_pipeline( ctx );
    310    _tnl_install_pipeline( ctx, r200_pipeline );
    311 
    312    /* Try and keep materials and vertices separate:
    313     */
    314 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
    315 
    316 
    317    /* Configure swrast and TNL to match hardware characteristics:
    318     */
    319    _swrast_allow_pixel_fog( ctx, GL_FALSE );
    320    _swrast_allow_vertex_fog( ctx, GL_TRUE );
    321    _tnl_allow_pixel_fog( ctx, GL_FALSE );
    322    _tnl_allow_vertex_fog( ctx, GL_TRUE );
    323 
    324 
    325    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
    326       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
    327       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
    328    }
    329    _math_matrix_ctr( &rmesa->tmpmat );
    330    _math_matrix_set_identity( &rmesa->tmpmat );
    331 
    332    ctx->Extensions.ARB_occlusion_query = true;
    333    ctx->Extensions.ARB_point_sprite = true;
    334    ctx->Extensions.ARB_texture_border_clamp = true;
    335    ctx->Extensions.ARB_texture_cube_map = true;
    336    ctx->Extensions.ARB_texture_env_combine = true;
    337    ctx->Extensions.ARB_texture_env_dot3 = true;
    338    ctx->Extensions.ARB_texture_env_crossbar = true;
    339    ctx->Extensions.ARB_texture_filter_anisotropic = true;
    340    ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
    341    ctx->Extensions.ARB_vertex_program = true;
    342    ctx->Extensions.ATI_fragment_shader = (ctx->Const.MaxTextureUnits == 6);
    343    ctx->Extensions.ATI_texture_env_combine3 = true;
    344    ctx->Extensions.ATI_texture_mirror_once = true;
    345    ctx->Extensions.EXT_blend_color = true;
    346    ctx->Extensions.EXT_blend_equation_separate = true;
    347    ctx->Extensions.EXT_blend_func_separate = true;
    348    ctx->Extensions.EXT_blend_minmax = true;
    349    ctx->Extensions.EXT_gpu_program_parameters = true;
    350    ctx->Extensions.EXT_point_parameters = true;
    351    ctx->Extensions.EXT_texture_env_dot3 = true;
    352    ctx->Extensions.EXT_texture_filter_anisotropic = true;
    353    ctx->Extensions.EXT_texture_mirror_clamp = true;
    354    ctx->Extensions.MESA_pack_invert = true;
    355    ctx->Extensions.NV_texture_rectangle = true;
    356    ctx->Extensions.OES_EGL_image = true;
    357 
    358    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
    359      /* yuv textures don't work with some chips - R200 / rv280 okay so far
    360 	others get the bit ordering right but don't actually do YUV-RGB conversion */
    361       ctx->Extensions.MESA_ycbcr_texture = true;
    362    }
    363    ctx->Extensions.EXT_texture_compression_s3tc = true;
    364    ctx->Extensions.ANGLE_texture_compression_dxt = true;
    365 
    366 #if 0
    367    r200InitDriverFuncs( ctx );
    368    r200InitIoctlFuncs( ctx );
    369    r200InitStateFuncs( ctx );
    370    r200InitTextureFuncs( ctx );
    371 #endif
    372    /* plug in a few more device driver functions */
    373    /* XXX these should really go right after _mesa_init_driver_functions() */
    374    radeon_fbo_init(&rmesa->radeon);
    375    radeonInitSpanFuncs( ctx );
    376    r200InitTnlFuncs( ctx );
    377    r200InitState( rmesa );
    378    r200InitSwtcl( ctx );
    379 
    380    rmesa->prefer_gart_client_texturing =
    381       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
    382 
    383    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
    384    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
    385       fprintf(stderr, "disabling 3D acceleration\n");
    386       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
    387    }
    388    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
    389 	    !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
    390       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
    391 	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
    392 	 fprintf(stderr, "Disabling HW TCL support\n");
    393       }
    394       TCL_FALLBACK(&rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
    395    }
    396 
    397    _mesa_override_extensions(ctx);
    398    _mesa_compute_version(ctx);
    399 
    400    /* Exec table initialization requires the version to be computed */
    401    _mesa_initialize_dispatch_tables(ctx);
    402    _mesa_initialize_vbo_vtxfmt(ctx);
    403 
    404    *error = __DRI_CTX_ERROR_SUCCESS;
    405    return GL_TRUE;
    406 }
    407 
    408 
    409 void r200DestroyContext( __DRIcontext *driContextPriv )
    410 {
    411 	int i;
    412 	r200ContextPtr rmesa = (r200ContextPtr)driContextPriv->driverPrivate;
    413 	if (rmesa)
    414 	{
    415 		for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
    416 			_math_matrix_dtr( &rmesa->TexGenMatrix[i] );
    417 		}
    418 	}
    419 	radeonDestroyContext(driContextPriv);
    420 }
    421