r200_context.c revision cdbcb051d93836861bc4d4e1027156111ac249d2 
1/*
2Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
3
4The Weather Channel (TM) funded Tungsten Graphics to develop the
5initial release of the Radeon 8500 driver under the XFree86 license.
6This notice must be preserved.
7
8Permission is hereby granted, free of charge, to any person obtaining
9a copy of this software and associated documentation files (the
10"Software"), to deal in the Software without restriction, including
11without limitation the rights to use, copy, modify, merge, publish,
12distribute, sublicense, and/or sell copies of the Software, and to
13permit persons to whom the Software is furnished to do so, subject to
14the following conditions:
15
16The above copyright notice and this permission notice (including the
17next paragraph) shall be included in all copies or substantial
18portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
24LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27
28**************************************************************************/
29
30/*
31 * Authors:
32 *   Keith Whitwell <keith@tungstengraphics.com>
33 */
34
35#include "main/glheader.h"
36#include "main/api_arrayelt.h"
37#include "main/context.h"
38#include "main/simple_list.h"
39#include "main/imports.h"
40#include "main/matrix.h"
41#include "main/extensions.h"
42#include "main/framebuffer.h"
43#include "main/state.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_pixel.h"
58#include "r200_tex.h"
59#include "r200_swtcl.h"
60#include "r200_tcl.h"
61#include "r200_maos.h"
62#include "r200_vertprog.h"
63
64#include "radeon_span.h"
65
66#define need_GL_ARB_vertex_program
67#define need_GL_ATI_fragment_shader
68#define need_GL_EXT_blend_minmax
69#define need_GL_EXT_fog_coord
70#define need_GL_EXT_secondary_color
71#define need_GL_EXT_blend_equation_separate
72#define need_GL_EXT_blend_func_separate
73#define need_GL_NV_vertex_program
74#define need_GL_ARB_point_parameters
75#define need_GL_EXT_framebuffer_object
76#include "extension_helper.h"
77
78#define DRIVER_DATE	"20060602"
79
80#include "vblank.h"
81#include "utils.h"
82#include "xmlpool.h" /* for symbolic values of enum-type options */
83
84/* Return various strings for glGetString().
85 */
86static const GLubyte *r200GetString( GLcontext *ctx, GLenum name )
87{
88   r200ContextPtr rmesa = R200_CONTEXT(ctx);
89   static char buffer[128];
90   unsigned   offset;
91   GLuint agp_mode = (rmesa->radeon.radeonScreen->card_type == RADEON_CARD_PCI)? 0 :
92      rmesa->radeon.radeonScreen->AGPMode;
93
94   switch ( name ) {
95   case GL_VENDOR:
96      return (GLubyte *)"Tungsten Graphics, Inc.";
97
98   case GL_RENDERER:
99      offset = driGetRendererString( buffer, "R200", DRIVER_DATE,
100				     agp_mode );
101
102      sprintf( & buffer[ offset ], " %sTCL",
103	       !(rmesa->radeon.TclFallback & R200_TCL_FALLBACK_TCL_DISABLE)
104	       ? "" : "NO-" );
105
106      return (GLubyte *)buffer;
107
108   default:
109      return NULL;
110   }
111}
112
113
114/* Extension strings exported by the R200 driver.
115 */
116const struct dri_extension card_extensions[] =
117{
118    { "GL_ARB_multitexture",               NULL },
119    { "GL_ARB_texture_border_clamp",       NULL },
120    { "GL_ARB_texture_env_add",            NULL },
121    { "GL_ARB_texture_env_combine",        NULL },
122    { "GL_ARB_texture_env_dot3",           NULL },
123    { "GL_ARB_texture_env_crossbar",       NULL },
124    { "GL_ARB_texture_mirrored_repeat",    NULL },
125    { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
126    { "GL_EXT_blend_subtract",             NULL },
127    { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
128    { "GL_EXT_packed_depth_stencil",	   NULL},
129    { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
130    { "GL_EXT_stencil_wrap",               NULL },
131    { "GL_EXT_texture_edge_clamp",         NULL },
132    { "GL_EXT_texture_env_combine",        NULL },
133    { "GL_EXT_texture_env_dot3",           NULL },
134    { "GL_EXT_texture_filter_anisotropic", NULL },
135    { "GL_EXT_texture_lod_bias",           NULL },
136    { "GL_EXT_texture_mirror_clamp",       NULL },
137    { "GL_EXT_texture_rectangle",          NULL },
138    { "GL_ATI_texture_env_combine3",       NULL },
139    { "GL_ATI_texture_mirror_once",        NULL },
140    { "GL_MESA_pack_invert",               NULL },
141    { "GL_NV_blend_square",                NULL },
142    { "GL_SGIS_generate_mipmap",           NULL },
143    { NULL,                                NULL }
144};
145
146const struct dri_extension blend_extensions[] = {
147    { "GL_EXT_blend_equation_separate",    GL_EXT_blend_equation_separate_functions },
148    { "GL_EXT_blend_func_separate",        GL_EXT_blend_func_separate_functions },
149    { NULL,                                NULL }
150};
151
152const struct dri_extension ARB_vp_extension[] = {
153    { "GL_ARB_vertex_program",             GL_ARB_vertex_program_functions }
154};
155
156const struct dri_extension NV_vp_extension[] = {
157    { "GL_NV_vertex_program",              GL_NV_vertex_program_functions }
158};
159
160const struct dri_extension ATI_fs_extension[] = {
161    { "GL_ATI_fragment_shader",            GL_ATI_fragment_shader_functions }
162};
163
164const struct dri_extension point_extensions[] = {
165    { "GL_ARB_point_sprite",               NULL },
166    { "GL_ARB_point_parameters",           GL_ARB_point_parameters_functions },
167    { NULL,                                NULL }
168};
169
170const struct dri_extension mm_extensions[] = {
171  { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
172  { NULL, NULL }
173};
174
175extern const struct tnl_pipeline_stage _r200_render_stage;
176extern const struct tnl_pipeline_stage _r200_tcl_stage;
177
178static const struct tnl_pipeline_stage *r200_pipeline[] = {
179
180   /* Try and go straight to t&l
181    */
182   &_r200_tcl_stage,
183
184   /* Catch any t&l fallbacks
185    */
186   &_tnl_vertex_transform_stage,
187   &_tnl_normal_transform_stage,
188   &_tnl_lighting_stage,
189   &_tnl_fog_coordinate_stage,
190   &_tnl_texgen_stage,
191   &_tnl_texture_transform_stage,
192   &_tnl_point_attenuation_stage,
193   &_tnl_vertex_program_stage,
194   /* Try again to go to tcl?
195    *     - no good for asymmetric-twoside (do with multipass)
196    *     - no good for asymmetric-unfilled (do with multipass)
197    *     - good for material
198    *     - good for texgen
199    *     - need to manipulate a bit of state
200    *
201    * - worth it/not worth it?
202    */
203
204   /* Else do them here.
205    */
206/*    &_r200_render_stage,  */ /* FIXME: bugs with ut2003 */
207   &_tnl_render_stage,		/* FALLBACK:  */
208   NULL,
209};
210
211
212
213/* Initialize the driver's misc functions.
214 */
215static void r200InitDriverFuncs( struct dd_function_table *functions )
216{
217    functions->GetBufferSize		= NULL; /* OBSOLETE */
218    functions->GetString		= r200GetString;
219}
220
221static const struct dri_debug_control debug_control[] =
222{
223    { "fall",  DEBUG_FALLBACKS },
224    { "tex",   DEBUG_TEXTURE },
225    { "ioctl", DEBUG_IOCTL },
226    { "prim",  DEBUG_PRIMS },
227    { "vert",  DEBUG_VERTS },
228    { "state", DEBUG_STATE },
229    { "code",  DEBUG_CODEGEN },
230    { "vfmt",  DEBUG_VFMT },
231    { "vtxf",  DEBUG_VFMT },
232    { "verb",  DEBUG_VERBOSE },
233    { "dri",   DEBUG_DRI },
234    { "dma",   DEBUG_DMA },
235    { "san",   DEBUG_SANITY },
236    { "sync",  DEBUG_SYNC },
237    { "pix",   DEBUG_PIXEL },
238    { "mem",   DEBUG_MEMORY },
239    { NULL,    0 }
240};
241
242static void r200_get_lock(radeonContextPtr radeon)
243{
244   r200ContextPtr rmesa = (r200ContextPtr)radeon;
245   drm_radeon_sarea_t *sarea = radeon->sarea;
246
247   R200_STATECHANGE( rmesa, ctx );
248   if (rmesa->radeon.sarea->tiling_enabled) {
249      rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] |= R200_COLOR_TILE_ENABLE;
250   }
251   else rmesa->hw.ctx.cmd[CTX_RB3D_COLORPITCH] &= ~R200_COLOR_TILE_ENABLE;
252
253   if ( sarea->ctx_owner != rmesa->radeon.dri.hwContext ) {
254      sarea->ctx_owner = rmesa->radeon.dri.hwContext;
255      if (!radeon->radeonScreen->kernel_mm)
256         radeon_bo_legacy_texture_age(radeon->radeonScreen->bom);
257   }
258
259}
260
261static void r200_vtbl_emit_cs_header(struct radeon_cs *cs, radeonContextPtr rmesa)
262{
263}
264
265
266static void r200_init_vtbl(radeonContextPtr radeon)
267{
268   radeon->vtbl.get_lock = r200_get_lock;
269   radeon->vtbl.update_viewport_offset = r200UpdateViewportOffset;
270   radeon->vtbl.emit_cs_header = r200_vtbl_emit_cs_header;
271   radeon->vtbl.swtcl_flush = r200_swtcl_flush;
272   radeon->vtbl.fallback = r200Fallback;
273}
274
275
276/* Create the device specific rendering context.
277 */
278GLboolean r200CreateContext( const __GLcontextModes *glVisual,
279			     __DRIcontextPrivate *driContextPriv,
280			     void *sharedContextPrivate)
281{
282   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
283   radeonScreenPtr screen = (radeonScreenPtr)(sPriv->private);
284   struct dd_function_table functions;
285   r200ContextPtr rmesa;
286   GLcontext *ctx;
287   int i;
288   int tcl_mode;
289
290   assert(glVisual);
291   assert(driContextPriv);
292   assert(screen);
293
294   /* Allocate the R200 context */
295   rmesa = (r200ContextPtr) CALLOC( sizeof(*rmesa) );
296   if ( !rmesa )
297      return GL_FALSE;
298
299   r200_init_vtbl(&rmesa->radeon);
300   /* init exp fog table data */
301   r200InitStaticFogData();
302
303   /* Parse configuration files.
304    * Do this here so that initialMaxAnisotropy is set before we create
305    * the default textures.
306    */
307   driParseConfigFiles (&rmesa->radeon.optionCache, &screen->optionCache,
308			screen->driScreen->myNum, "r200");
309   rmesa->radeon.initialMaxAnisotropy = driQueryOptionf(&rmesa->radeon.optionCache,
310							"def_max_anisotropy");
311
312   if ( driQueryOptionb( &rmesa->radeon.optionCache, "hyperz" ) ) {
313      if ( sPriv->drm_version.minor < 13 )
314	 fprintf( stderr, "DRM version 1.%d too old to support HyperZ, "
315			  "disabling.\n", sPriv->drm_version.minor );
316      else
317	 rmesa->using_hyperz = GL_TRUE;
318   }
319
320   if ( sPriv->drm_version.minor >= 15 )
321      rmesa->texmicrotile = GL_TRUE;
322
323   /* Init default driver functions then plug in our R200-specific functions
324    * (the texture functions are especially important)
325    */
326   _mesa_init_driver_functions(&functions);
327   r200InitDriverFuncs(&functions);
328   r200InitIoctlFuncs(&functions);
329   r200InitStateFuncs(&functions);
330   r200InitTextureFuncs(&functions);
331   r200InitShaderFuncs(&functions);
332
333   if (!radeonInitContext(&rmesa->radeon, &functions,
334			  glVisual, driContextPriv,
335			  sharedContextPrivate)) {
336     FREE(rmesa);
337     return GL_FALSE;
338   }
339
340   rmesa->radeon.swtcl.RenderIndex = ~0;
341   rmesa->radeon.hw.all_dirty = 1;
342
343   /* Set the maximum texture size small enough that we can guarentee that
344    * all texture units can bind a maximal texture and have all of them in
345    * texturable memory at once. Depending on the allow_large_textures driconf
346    * setting allow larger textures.
347    */
348
349   ctx = rmesa->radeon.glCtx;
350   ctx->Const.MaxTextureUnits = driQueryOptioni (&rmesa->radeon.optionCache,
351						 "texture_units");
352   ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
353   ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
354
355   i = driQueryOptioni( &rmesa->radeon.optionCache, "allow_large_textures");
356
357   /* FIXME: When no memory manager is available we should set this
358    * to some reasonable value based on texture memory pool size */
359   ctx->Const.MaxTextureLevels = 11;
360   ctx->Const.Max3DTextureLevels = 8;
361   ctx->Const.MaxCubeTextureLevels = 11;
362   ctx->Const.MaxTextureRectSize = 2048;
363
364   ctx->Const.MaxTextureMaxAnisotropy = 16.0;
365
366   /* No wide AA points.
367    */
368   ctx->Const.MinPointSize = 1.0;
369   ctx->Const.MinPointSizeAA = 1.0;
370   ctx->Const.MaxPointSizeAA = 1.0;
371   ctx->Const.PointSizeGranularity = 0.0625;
372   if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
373      ctx->Const.MaxPointSize = 2047.0;
374   else
375      ctx->Const.MaxPointSize = 1.0;
376
377   /* mesa initialization problem - _mesa_init_point was already called */
378   ctx->Point.MaxSize = ctx->Const.MaxPointSize;
379
380   ctx->Const.MinLineWidth = 1.0;
381   ctx->Const.MinLineWidthAA = 1.0;
382   ctx->Const.MaxLineWidth = 10.0;
383   ctx->Const.MaxLineWidthAA = 10.0;
384   ctx->Const.LineWidthGranularity = 0.0625;
385
386   ctx->Const.VertexProgram.MaxNativeInstructions = R200_VSF_MAX_INST;
387   ctx->Const.VertexProgram.MaxNativeAttribs = 12;
388   ctx->Const.VertexProgram.MaxNativeTemps = R200_VSF_MAX_TEMPS;
389   ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
390   ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
391
392   ctx->Const.MaxDrawBuffers = 1;
393
394   _mesa_set_mvp_with_dp4( ctx, GL_TRUE );
395
396   /* Initialize the software rasterizer and helper modules.
397    */
398   _swrast_CreateContext( ctx );
399   _vbo_CreateContext( ctx );
400   _tnl_CreateContext( ctx );
401   _swsetup_CreateContext( ctx );
402   _ae_create_context( ctx );
403
404   /* Install the customized pipeline:
405    */
406   _tnl_destroy_pipeline( ctx );
407   _tnl_install_pipeline( ctx, r200_pipeline );
408
409   /* Try and keep materials and vertices separate:
410    */
411/*    _tnl_isolate_materials( ctx, GL_TRUE ); */
412
413
414   /* Configure swrast and TNL to match hardware characteristics:
415    */
416   _swrast_allow_pixel_fog( ctx, GL_FALSE );
417   _swrast_allow_vertex_fog( ctx, GL_TRUE );
418   _tnl_allow_pixel_fog( ctx, GL_FALSE );
419   _tnl_allow_vertex_fog( ctx, GL_TRUE );
420
421
422   for ( i = 0 ; i < R200_MAX_TEXTURE_UNITS ; i++ ) {
423      _math_matrix_ctr( &rmesa->TexGenMatrix[i] );
424      _math_matrix_set_identity( &rmesa->TexGenMatrix[i] );
425   }
426   _math_matrix_ctr( &rmesa->tmpmat );
427   _math_matrix_set_identity( &rmesa->tmpmat );
428
429   driInitExtensions( ctx, card_extensions, GL_TRUE );
430
431   if (rmesa->radeon.radeonScreen->kernel_mm)
432     driInitExtensions(ctx, mm_extensions, GL_FALSE);
433   if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
434     /* yuv textures don't work with some chips - R200 / rv280 okay so far
435	others get the bit ordering right but don't actually do YUV-RGB conversion */
436      _mesa_enable_extension( ctx, "GL_MESA_ycbcr_texture" );
437   }
438   if (rmesa->radeon.glCtx->Mesa_DXTn) {
439      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
440      _mesa_enable_extension( ctx, "GL_S3_s3tc" );
441   }
442   else if (driQueryOptionb (&rmesa->radeon.optionCache, "force_s3tc_enable")) {
443      _mesa_enable_extension( ctx, "GL_EXT_texture_compression_s3tc" );
444   }
445
446   if (rmesa->radeon.radeonScreen->drmSupportsCubeMapsR200)
447      _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map" );
448   if (rmesa->radeon.radeonScreen->drmSupportsBlendColor) {
449       driInitExtensions( ctx, blend_extensions, GL_FALSE );
450   }
451   if(rmesa->radeon.radeonScreen->drmSupportsVertexProgram)
452      driInitSingleExtension( ctx, ARB_vp_extension );
453   if(driQueryOptionb(&rmesa->radeon.optionCache, "nv_vertex_program"))
454      driInitSingleExtension( ctx, NV_vp_extension );
455
456   if ((ctx->Const.MaxTextureUnits == 6) && rmesa->radeon.radeonScreen->drmSupportsFragShader)
457      driInitSingleExtension( ctx, ATI_fs_extension );
458   if (rmesa->radeon.radeonScreen->drmSupportsPointSprites)
459      driInitExtensions( ctx, point_extensions, GL_FALSE );
460#if 0
461   r200InitDriverFuncs( ctx );
462   r200InitIoctlFuncs( ctx );
463   r200InitStateFuncs( ctx );
464   r200InitTextureFuncs( ctx );
465#endif
466   /* plug in a few more device driver functions */
467   /* XXX these should really go right after _mesa_init_driver_functions() */
468   radeon_fbo_init(&rmesa->radeon);
469   radeonInitSpanFuncs( ctx );
470   r200InitPixelFuncs( ctx );
471   r200InitTnlFuncs( ctx );
472   r200InitState( rmesa );
473   r200InitSwtcl( ctx );
474
475   rmesa->prefer_gart_client_texturing =
476      (getenv("R200_GART_CLIENT_TEXTURES") != 0);
477
478#if DO_DEBUG
479   R200_DEBUG  = driParseDebugString( getenv( "R200_DEBUG" ),
480				      debug_control );
481   R200_DEBUG |= driParseDebugString( getenv( "RADEON_DEBUG" ),
482				      debug_control );
483#endif
484
485   tcl_mode = driQueryOptioni(&rmesa->radeon.optionCache, "tcl_mode");
486   if (driQueryOptionb(&rmesa->radeon.optionCache, "no_rast")) {
487      fprintf(stderr, "disabling 3D acceleration\n");
488      FALLBACK(rmesa, R200_FALLBACK_DISABLE, 1);
489   }
490   else if (tcl_mode == DRI_CONF_TCL_SW || getenv("R200_NO_TCL") ||
491	    !(rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL)) {
492      if (rmesa->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL) {
493	 rmesa->radeon.radeonScreen->chip_flags &= ~RADEON_CHIPSET_TCL;
494	 fprintf(stderr, "Disabling HW TCL support\n");
495      }
496      TCL_FALLBACK(rmesa->radeon.glCtx, R200_TCL_FALLBACK_TCL_DISABLE, 1);
497   }
498
499   return GL_TRUE;
500}
501
502
503