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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 "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 			     unsigned major_version,
    178 			     unsigned minor_version,
    179 			     uint32_t flags,
    180                              bool notify_reset,
    181 			     unsigned *error,
    182 			     void *sharedContextPrivate)
    183 {
    184    __DRIscreen *sPriv = driContextPriv->driScreenPriv;
    185    radeonScreenPtr screen = (radeonScreenPtr)(sPriv->driverPrivate);
    186    struct dd_function_table functions;
    187    r200ContextPtr rmesa;
    188    struct gl_context *ctx;
    189    int i;
    190    int tcl_mode;
    191 
    192    if (flags & ~__DRI_CTX_FLAG_DEBUG) {
    193       *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
    194       return false;
    195    }
    196 
    197    if (notify_reset) {
    198       *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
    199       return false;
    200    }
    201 
    202    assert(glVisual);
    203    assert(driContextPriv);
    204    assert(screen);
    205 
    206    /* Allocate the R200 context */
    207    rmesa = calloc(1, sizeof(*rmesa));
    208    if ( !rmesa ) {
    209       *error = __DRI_CTX_ERROR_NO_MEMORY;
    210       return GL_FALSE;
    211    }
    212 
    213    rmesa->radeon.radeonScreen = screen;
    214    r200_init_vtbl(&rmesa->radeon);
    215    /* init exp fog table data */
    216    radeonInitStaticFogData();
    217 
    218    /* Parse configuration files.
    219     * Do this here so that initialMaxAnisotropy is set before we create
    220     * the default textures.
    221     */
    222    driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
    223 			screen->driScreen->myNum, "r200");
    224    rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
    225 							"def_max_anisotropy");
    226 
    227    if (driQueryOptionb( &rmesa->radeon.optionCache, "hyperz"))
    228       rmesa->using_hyperz = GL_TRUE;
    229 
    230    /* Init default driver functions then plug in our R200-specific functions
    231     * (the texture functions are especially important)
    232     */
    233    _mesa_init_driver_functions(&functions);
    234    r200InitDriverFuncs(&functions);
    235    r200InitIoctlFuncs(&functions);
    236    r200InitStateFuncs(&rmesa->radeon, &functions);
    237    r200InitTextureFuncs(&rmesa->radeon, &functions);
    238    r200InitShaderFuncs(&functions);
    239    radeonInitQueryObjFunctions(&functions);
    240 
    241    if (!radeonInitContext(&rmesa->radeon, api, &functions,
    242 			  glVisual, driContextPriv,
    243 			  sharedContextPrivate)) {
    244      free(rmesa);
    245      *error = __DRI_CTX_ERROR_NO_MEMORY;
    246      return GL_FALSE;
    247    }
    248 
    249    rmesa->radeon.swtcl.RenderIndex = ~0;
    250    rmesa->radeon.hw.all_dirty = 1;
    251 
    252    ctx = &rmesa->radeon.glCtx;
    253 
    254    driContextSetFlags(ctx, flags);
    255 
    256    /* Initialize the software rasterizer and helper modules.
    257     */
    258    _swrast_CreateContext( ctx );
    259    _vbo_CreateContext( ctx );
    260    _tnl_CreateContext( ctx );
    261    _swsetup_CreateContext( ctx );
    262    _ae_create_context( ctx );
    263 
    264    ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
    265 						 "texture_units");
    266    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
    267    ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
    268 
    269    ctx->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxTextureUnits;
    270 
    271    ctx->Const.StripTextureBorder = GL_TRUE;
    272 
    273    /* FIXME: When no memory manager is available we should set this
    274     * to some reasonable value based on texture memory pool size */
    275    ctx->Const.MaxTextureLevels = 12;
    276    ctx->Const.Max3DTextureLevels = 9;
    277    ctx->Const.MaxCubeTextureLevels = 12;
    278    ctx->Const.MaxTextureRectSize = 2048;
    279    ctx->Const.MaxRenderbufferSize = 2048;
    280 
    281    ctx->Const.MaxTextureMaxAnisotropy = 16.0;
    282 
    283    /* No wide AA points.
    284     */
    285    ctx->Const.MinPointSize = 1.0;
    286    ctx->Const.MinPointSizeAA = 1.0;
    287    ctx->Const.MaxPointSizeAA = 1.0;
    288    ctx->Const.PointSizeGranularity = 0.0625;
    289    ctx->Const.MaxPointSize = 2047.0;
    290 
    291    /* mesa initialization problem - _mesa_init_point was already called */
    292    ctx->Point.MaxSize = ctx->Const.MaxPointSize;
    293 
    294    ctx->Const.MinLineWidth = 1.0;
    295    ctx->Const.MinLineWidthAA = 1.0;
    296    ctx->Const.MaxLineWidth = 10.0;
    297    ctx->Const.MaxLineWidthAA = 10.0;
    298    ctx->Const.LineWidthGranularity = 0.0625;
    299 
    300    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeInstructions = R200_VSF_MAX_INST;
    301    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAttribs = 12;
    302    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeTemps = R200_VSF_MAX_TEMPS;
    303    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeParameters = R200_VSF_MAX_PARAM;
    304    ctx->Const.Program[MESA_SHADER_VERTEX].MaxNativeAddressRegs = 1;
    305 
    306    ctx->Const.MaxDrawBuffers = 1;
    307    ctx->Const.MaxColorAttachments = 1;
    308 
    309    ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE;
    310 
    311    /* Install the customized pipeline:
    312     */
    313    _tnl_destroy_pipeline( ctx );
    314    _tnl_install_pipeline( ctx, r200_pipeline );
    315 
    316    /* Try and keep materials and vertices separate:
    317     */
    318 /*    _tnl_isolate_materials( ctx, GL_TRUE ); */
    319 
    320 
    321    /* Configure swrast and TNL to match hardware characteristics:
    322     */
    323    _swrast_allow_pixel_fog( ctx, GL_FALSE );
    324    _swrast_allow_vertex_fog( ctx, GL_TRUE );
    325    _tnl_allow_pixel_fog( ctx, GL_FALSE );
    326    _tnl_allow_vertex_fog( ctx, GL_TRUE );
    327 
    328 
    329    for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
    330       _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
    331       _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
    332    }
    333    _math_matrix_ctr( &rmesa->tmpmat );
    334    _math_matrix_set_identity( &rmesa->tmpmat );
    335 
    336    ctx->Extensions.ARB_occlusion_query = true;
    337    ctx->Extensions.ARB_point_sprite = true;
    338    ctx->Extensions.ARB_texture_border_clamp = true;
    339    ctx->Extensions.ARB_texture_cube_map = true;
    340    ctx->Extensions.ARB_texture_env_combine = true;
    341    ctx->Extensions.ARB_texture_env_dot3 = true;
    342    ctx->Extensions.ARB_texture_env_crossbar = true;
    343    ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
    344    ctx->Extensions.ARB_vertex_program = true;
    345    ctx->Extensions.ATI_fragment_shader = (ctx->Const.MaxTextureUnits == 6);
    346    ctx->Extensions.ATI_texture_env_combine3 = true;
    347    ctx->Extensions.ATI_texture_mirror_once = true;
    348    ctx->Extensions.EXT_blend_color = true;
    349    ctx->Extensions.EXT_blend_equation_separate = true;
    350    ctx->Extensions.EXT_blend_func_separate = true;
    351    ctx->Extensions.EXT_blend_minmax = true;
    352    ctx->Extensions.EXT_gpu_program_parameters = true;
    353    ctx->Extensions.EXT_point_parameters = true;
    354    ctx->Extensions.EXT_texture_env_dot3 = true;
    355    ctx->Extensions.EXT_texture_filter_anisotropic = true;
    356    ctx->Extensions.EXT_texture_mirror_clamp = true;
    357    ctx->Extensions.MESA_pack_invert = true;
    358    ctx->Extensions.NV_texture_rectangle = true;
    359    ctx->Extensions.OES_EGL_image = true;
    360 
    361    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
    362      /* yuv textures don't work with some chips - R200 / rv280 okay so far
    363 	others get the bit ordering right but don't actually do YUV-RGB conversion */
    364       ctx->Extensions.MESA_ycbcr_texture = true;
    365    }
    366    if (rmesa->radeon.glCtx.Mesa_DXTn) {
    367       ctx->Extensions.EXT_texture_compression_s3tc = true;
    368       ctx->Extensions.ANGLE_texture_compression_dxt = true;
    369    }
    370    else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
    371       ctx->Extensions.EXT_texture_compression_s3tc = true;
    372       ctx->Extensions.ANGLE_texture_compression_dxt = true;
    373    }
    374 
    375 #if 0
    376    r200InitDriverFuncs( ctx );
    377    r200InitIoctlFuncs( ctx );
    378    r200InitStateFuncs( ctx );
    379    r200InitTextureFuncs( ctx );
    380 #endif
    381    /* plug in a few more device driver functions */
    382    /* XXX these should really go right after _mesa_init_driver_functions() */
    383    radeon_fbo_init(&rmesa->radeon);
    384    radeonInitSpanFuncs( ctx );
    385    r200InitTnlFuncs( ctx );
    386    r200InitState( rmesa );
    387    r200InitSwtcl( ctx );
    388 
    389    rmesa->prefer_gart_client_texturing =
    390       (getenv("R200_GART_CLIENT_TEXTURES") != 0);
    391 
    392    tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
    393    if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
    394       fprintf(stderr, "disabling 3D acceleration\n");
    395       FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
    396    }
    397    else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
    398 	    !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
    399       if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
    400 	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
    401 	 fprintf(stderr, "Disabling HW TCL support\n");
    402       }
    403       TCL_FALLBACK(&rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
    404    }
    405 
    406    _mesa_compute_version(ctx);
    407 
    408    /* Exec table initialization requires the version to be computed */
    409    _mesa_initialize_dispatch_tables(ctx);
    410    _mesa_initialize_vbo_vtxfmt(ctx);
    411 
    412    *error = __DRI_CTX_ERROR_SUCCESS;
    413    return GL_TRUE;
    414 }
    415 
    416 
    417 void r200DestroyContext( __DRIcontext *driContextPriv )
    418 {
    419 	int i;
    420 	r200ContextPtr rmesa = (r200ContextPtr)driContextPriv->driverPrivate;
    421 	if (rmesa)
    422 	{
    423 		for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
    424 			_math_matrix_dtr( &rmesa->TexGenMatrix[i] );
    425 		}
    426 	}
    427 	radeonDestroyContext(driContextPriv);
    428 }
    429