2 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
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.
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:
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.
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.
28 **************************************************************************/
32 * Keith Whitwell <keith@tungstengraphics.com>
35 #include "main/glheader.h"
36 #include "main/imports.h"
37 #include "main/mtypes.h"
38 #include "main/enums.h"
39 #include "main/colormac.h"
40 #include "main/light.h"
44 #include "tnl/t_pipeline.h"
46 #include "r200_context.h"
47 #include "r200_state.h"
48 #include "r200_ioctl.h"
51 #include "r200_swtcl.h"
52 #include "r200_maos.h"
54 #include "radeon_common_context.h"
60 #define HAVE_LINE_LOOP 0
61 #define HAVE_LINE_STRIPS 1
62 #define HAVE_TRIANGLES 1
63 #define HAVE_TRI_STRIPS 1
64 #define HAVE_TRI_STRIP_1 0
65 #define HAVE_TRI_FANS 1
67 #define HAVE_QUAD_STRIPS 1
68 #define HAVE_POLYGONS 1
72 #define HW_POINTS ((ctx->Point.PointSprite || \
73 ((ctx->_TriangleCaps & (DD_POINT_SIZE | DD_POINT_ATTEN)) && \
74 !(ctx->_TriangleCaps & (DD_POINT_SMOOTH)))) ? \
75 R200_VF_PRIM_POINT_SPRITES : R200_VF_PRIM_POINTS)
76 #define HW_LINES R200_VF_PRIM_LINES
77 #define HW_LINE_LOOP 0
78 #define HW_LINE_STRIP R200_VF_PRIM_LINE_STRIP
79 #define HW_TRIANGLES R200_VF_PRIM_TRIANGLES
80 #define HW_TRIANGLE_STRIP_0 R200_VF_PRIM_TRIANGLE_STRIP
81 #define HW_TRIANGLE_STRIP_1 0
82 #define HW_TRIANGLE_FAN R200_VF_PRIM_TRIANGLE_FAN
83 #define HW_QUADS R200_VF_PRIM_QUADS
84 #define HW_QUAD_STRIP R200_VF_PRIM_QUAD_STRIP
85 #define HW_POLYGON R200_VF_PRIM_POLYGON
88 static GLboolean discrete_prim
[0x10] = {
96 0, /* 7 tri_w_flags */
97 1, /* 8 rect list (unused) */
98 1, /* 9 3vert point */
100 0, /* b point sprite */
103 0, /* e quad strip */
108 #define LOCAL_VARS r200ContextPtr rmesa = R200_CONTEXT(ctx)
109 #define ELT_TYPE GLushort
111 #define ELT_INIT(prim, hw_prim) \
112 r200TclPrimitive( ctx, prim, hw_prim | R200_VF_PRIM_WALK_IND )
114 #define GET_MESA_ELTS() TNL_CONTEXT(ctx)->vb.Elts
117 /* Don't really know how many elts will fit in what's left of cmdbuf,
118 * as there is state to emit, etc:
121 /* Testing on isosurf shows a maximum around here. Don't know if it's
122 * the card or driver or kernel module that is causing the behaviour.
124 #define GET_MAX_HW_ELTS() 300
126 #define RESET_STIPPLE() do { \
127 R200_STATECHANGE( rmesa, lin ); \
128 radeonEmitState(&rmesa->radeon); \
131 #define AUTO_STIPPLE( mode ) do { \
132 R200_STATECHANGE( rmesa, lin ); \
134 rmesa->hw.lin.cmd[LIN_RE_LINE_PATTERN] |= \
135 R200_LINE_PATTERN_AUTO_RESET; \
137 rmesa->hw.lin.cmd[LIN_RE_LINE_PATTERN] &= \
138 ~R200_LINE_PATTERN_AUTO_RESET; \
139 radeonEmitState(&rmesa->radeon); \
143 #define ALLOC_ELTS(nr) r200AllocElts( rmesa, nr )
145 static GLushort
*r200AllocElts( r200ContextPtr rmesa
, GLuint nr
)
147 if (rmesa
->radeon
.dma
.flush
== r200FlushElts
&&
148 rmesa
->tcl
.elt_used
+ nr
*2 < R200_ELT_BUF_SZ
) {
150 GLushort
*dest
= (GLushort
*)(rmesa
->radeon
.tcl
.elt_dma_bo
->ptr
+
151 rmesa
->radeon
.tcl
.elt_dma_offset
+ rmesa
->tcl
.elt_used
);
153 rmesa
->tcl
.elt_used
+= nr
*2;
158 if (rmesa
->radeon
.dma
.flush
)
159 rmesa
->radeon
.dma
.flush( rmesa
->radeon
.glCtx
);
162 rmesa
->radeon
.tcl
.aos_count
, 0 );
164 return r200AllocEltsOpenEnded( rmesa
, rmesa
->tcl
.hw_primitive
, nr
);
169 #define CLOSE_ELTS() \
171 if (0) R200_NEWPRIM( rmesa ); \
176 /* TODO: Try to extend existing primitive if both are identical,
177 * discrete and there are no intervening state changes. (Somewhat
178 * duplicates changes to DrawArrays code)
180 static void r200EmitPrim( GLcontext
*ctx
,
186 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
187 r200TclPrimitive( ctx
, prim
, hwprim
);
189 // fprintf(stderr,"Emit prim %d\n", rmesa->radeon.tcl.aos_count);
192 rmesa
->radeon
.tcl
.aos_count
,
195 /* Why couldn't this packet have taken an offset param?
197 r200EmitVbufPrim( rmesa
,
198 rmesa
->tcl
.hw_primitive
,
202 #define EMIT_PRIM(ctx, prim, hwprim, start, count) do { \
203 r200EmitPrim( ctx, prim, hwprim, start, count ); \
204 (void) rmesa; } while (0)
206 #define MAX_CONVERSION_SIZE 40
207 /* Try & join small primitives
210 #define PREFER_DISCRETE_ELT_PRIM( NR, PRIM ) 0
212 #define PREFER_DISCRETE_ELT_PRIM( NR, PRIM ) \
215 rmesa->tcl.hw_primitive == (PRIM| \
216 R200_VF_TCL_OUTPUT_VTX_ENABLE| \
217 R200_VF_PRIM_WALK_IND)))
220 #ifdef MESA_BIG_ENDIAN
221 /* We could do without (most of) this ugliness if dest was always 32 bit word aligned... */
222 #define EMIT_ELT(dest, offset, x) do { \
223 int off = offset + ( ( (GLuint)dest & 0x2 ) >> 1 ); \
224 GLushort *des = (GLushort *)( (GLuint)dest & ~0x2 ); \
225 (des)[ off + 1 - 2 * ( off & 1 ) ] = (GLushort)(x); \
226 (void)rmesa; } while (0)
228 #define EMIT_ELT(dest, offset, x) do { \
229 (dest)[offset] = (GLushort) (x); \
230 (void)rmesa; } while (0)
233 #define EMIT_TWO_ELTS(dest, offset, x, y) *(GLuint *)((dest)+offset) = ((y)<<16)|(x);
237 #define TAG(x) tcl_##x
238 #include "tnl_dd/t_dd_dmatmp2.h"
240 /**********************************************************************/
241 /* External entrypoints */
242 /**********************************************************************/
244 void r200EmitPrimitive( GLcontext
*ctx
,
249 tcl_render_tab_verts
[flags
&PRIM_MODE_MASK
]( ctx
, first
, last
, flags
);
252 void r200EmitEltPrimitive( GLcontext
*ctx
,
257 tcl_render_tab_elts
[flags
&PRIM_MODE_MASK
]( ctx
, first
, last
, flags
);
260 void r200TclPrimitive( GLcontext
*ctx
,
264 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
265 GLuint newprim
= hw_prim
| R200_VF_TCL_OUTPUT_VTX_ENABLE
;
267 if (newprim
!= rmesa
->tcl
.hw_primitive
||
268 !discrete_prim
[hw_prim
&0xf]) {
269 /* need to disable perspective-correct texturing for point sprites */
270 if ((prim
& PRIM_MODE_MASK
) == GL_POINTS
&& ctx
->Point
.PointSprite
) {
271 if (rmesa
->hw
.set
.cmd
[SET_RE_CNTL
] & R200_PERSPECTIVE_ENABLE
) {
272 R200_STATECHANGE( rmesa
, set
);
273 rmesa
->hw
.set
.cmd
[SET_RE_CNTL
] &= ~R200_PERSPECTIVE_ENABLE
;
276 else if (!(rmesa
->hw
.set
.cmd
[SET_RE_CNTL
] & R200_PERSPECTIVE_ENABLE
)) {
277 R200_STATECHANGE( rmesa
, set
);
278 rmesa
->hw
.set
.cmd
[SET_RE_CNTL
] |= R200_PERSPECTIVE_ENABLE
;
280 R200_NEWPRIM( rmesa
);
281 rmesa
->tcl
.hw_primitive
= newprim
;
286 /**********************************************************************/
287 /* Fog blend factor computation for hw tcl */
288 /* same calculation used as in t_vb_fog.c */
289 /**********************************************************************/
291 #define FOG_EXP_TABLE_SIZE 256
292 #define FOG_MAX (10.0)
293 #define EXP_FOG_MAX .0006595
294 #define FOG_INCR (FOG_MAX/FOG_EXP_TABLE_SIZE)
295 static GLfloat exp_table
[FOG_EXP_TABLE_SIZE
];
298 #define NEG_EXP( result, narg ) \
300 GLfloat f = (GLfloat) (narg * (1.0/FOG_INCR)); \
301 GLint k = (GLint) f; \
302 if (k > FOG_EXP_TABLE_SIZE-2) \
303 result = (GLfloat) EXP_FOG_MAX; \
305 result = exp_table[k] + (f-k)*(exp_table[k+1]-exp_table[k]); \
308 #define NEG_EXP( result, narg ) \
310 result = exp(-narg); \
316 * Initialize the exp_table[] lookup table for approximating exp().
319 r200InitStaticFogData( void )
323 for ( ; i
< FOG_EXP_TABLE_SIZE
; i
++, f
+= FOG_INCR
) {
324 exp_table
[i
] = (GLfloat
) exp(-f
);
330 * Compute per-vertex fog blend factors from fog coordinates by
331 * evaluating the GL_LINEAR, GL_EXP or GL_EXP2 fog function.
332 * Fog coordinates are distances from the eye (typically between the
333 * near and far clip plane distances).
334 * Note the fog (eye Z) coords may be negative so we use ABS(z) below.
335 * Fog blend factors are in the range [0,1].
338 r200ComputeFogBlendFactor( GLcontext
*ctx
, GLfloat fogcoord
)
340 GLfloat end
= ctx
->Fog
.End
;
342 const GLfloat z
= FABSF(fogcoord
);
344 switch (ctx
->Fog
.Mode
) {
346 if (ctx
->Fog
.Start
== ctx
->Fog
.End
)
349 d
= 1.0F
/ (ctx
->Fog
.End
- ctx
->Fog
.Start
);
350 temp
= (end
- z
) * d
;
351 return CLAMP(temp
, 0.0F
, 1.0F
);
354 d
= ctx
->Fog
.Density
;
355 NEG_EXP( temp
, d
* z
);
359 d
= ctx
->Fog
.Density
*ctx
->Fog
.Density
;
360 NEG_EXP( temp
, d
* z
* z
);
364 _mesa_problem(ctx
, "Bad fog mode in make_fog_coord");
370 * Predict total emit size for next rendering operation so there is no flush in middle of rendering
371 * Prediction has to aim towards the best possible value that is worse than worst case scenario
373 static GLuint
r200EnsureEmitSize( GLcontext
* ctx
, GLubyte
* vimap_rev
)
375 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
376 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
377 struct vertex_buffer
*VB
= &tnl
->vb
;
378 GLuint space_required
;
382 /* predict number of aos to emit */
383 for (i
= 0; i
< 15; ++i
)
385 if (vimap_rev
[i
] != 255)
392 /* count the prediction for state size */
394 state_size
= radeonCountStateEmitSize( &rmesa
->radeon
);
395 /* vtx may be changed in r200EmitArrays so account for it if not dirty */
396 if (!rmesa
->hw
.vtx
.dirty
)
397 state_size
+= rmesa
->hw
.vtx
.check(rmesa
->radeon
.glCtx
, &rmesa
->hw
.vtx
);
398 /* predict size for elements */
399 for (i
= 0; i
< VB
->PrimitiveCount
; ++i
)
401 if (!VB
->Primitive
[i
].count
)
403 /* If primitive.count is less than MAX_CONVERSION_SIZE
404 rendering code may decide convert to elts.
405 In that case we have to make pessimistic prediction.
406 and use larger of 2 paths. */
407 const GLuint elts
= ELTS_BUFSZ(nr_aos
);
408 const GLuint index
= INDEX_BUFSZ
;
409 const GLuint vbuf
= VBUF_BUFSZ
;
410 if ( (!VB
->Elts
&& VB
->Primitive
[i
].count
>= MAX_CONVERSION_SIZE
)
411 || vbuf
> index
+ elts
)
412 space_required
+= vbuf
;
414 space_required
+= index
+ elts
;
415 space_required
+= AOS_BUFSZ(nr_aos
);
417 space_required
+= SCISSOR_BUFSZ
;
419 /* flush the buffer in case we need more than is left. */
420 if (rcommonEnsureCmdBufSpace(&rmesa
->radeon
, space_required
+ state_size
, __FUNCTION__
))
421 return space_required
+ radeonCountStateEmitSize( &rmesa
->radeon
);
423 return space_required
+ state_size
;
427 /**********************************************************************/
428 /* Render pipeline stage */
429 /**********************************************************************/
434 static GLboolean
r200_run_tcl_render( GLcontext
*ctx
,
435 struct tnl_pipeline_stage
*stage
)
437 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
438 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
439 struct vertex_buffer
*VB
= &tnl
->vb
;
442 /* use hw fixed order for simplicity, pos 0, weight 1, normal 2, fog 3,
443 color0 - color3 4-7, texcoord0 - texcoord5 8-13, pos 1 14. Must not use
444 more than 12 of those at the same time. */
445 GLubyte map_rev_fixed
[15] = {255, 255, 255, 255, 255, 255, 255, 255,
446 255, 255, 255, 255, 255, 255, 255};
449 /* TODO: separate this from the swtnl pipeline
451 if (rmesa
->radeon
.TclFallback
)
452 return GL_TRUE
; /* fallback to software t&l */
454 if (R200_DEBUG
& DEBUG_PRIMS
)
455 fprintf(stderr
, "%s\n", __FUNCTION__
);
462 if (rmesa
->radeon
.NewGLState
)
463 if (!r200ValidateState( ctx
))
464 return GL_TRUE
; /* fallback to sw t&l */
466 if (!ctx
->VertexProgram
._Enabled
) {
467 /* NOTE: inputs != tnl->render_inputs - these are the untransformed
470 map_rev_fixed
[0] = VERT_ATTRIB_POS
;
471 /* technically there is no reason we always need VA_COLOR0. In theory
472 could disable it depending on lighting, color materials, texturing... */
473 map_rev_fixed
[4] = VERT_ATTRIB_COLOR0
;
475 if (ctx
->Light
.Enabled
) {
476 map_rev_fixed
[2] = VERT_ATTRIB_NORMAL
;
479 /* this also enables VA_COLOR1 when using separate specular
480 lighting model, which is unnecessary.
481 FIXME: OTOH, we're missing the case where a ATI_fragment_shader accesses
482 the secondary color (if lighting is disabled). The chip seems
483 misconfigured for that though elsewhere (tcl output, might lock up) */
484 if (ctx
->_TriangleCaps
& DD_SEPARATE_SPECULAR
) {
485 map_rev_fixed
[5] = VERT_ATTRIB_COLOR1
;
488 if ( (ctx
->Fog
.FogCoordinateSource
== GL_FOG_COORD
) && ctx
->Fog
.Enabled
) {
489 map_rev_fixed
[3] = VERT_ATTRIB_FOG
;
492 for (i
= 0 ; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
493 if (ctx
->Texture
.Unit
[i
]._ReallyEnabled
) {
494 if (rmesa
->TexGenNeedNormals
[i
]) {
495 map_rev_fixed
[2] = VERT_ATTRIB_NORMAL
;
497 map_rev_fixed
[8 + i
] = VERT_ATTRIB_TEX0
+ i
;
500 vimap_rev
= &map_rev_fixed
[0];
503 /* vtx_tcl_output_vtxfmt_0/1 need to match configuration of "fragment
504 part", since using some vertex interpolator later which is not in
505 out_vtxfmt0/1 will lock up. It seems to be ok to write in vertex
506 prog to a not enabled output however, so just don't mess with it.
507 We only need to change compsel. */
508 GLuint out_compsel
= 0;
509 GLuint vp_out
= rmesa
->curr_vp_hw
->mesa_program
.Base
.OutputsWritten
;
511 vimap_rev
= &rmesa
->curr_vp_hw
->inputmap_rev
[0];
512 assert(vp_out
& (1 << VERT_RESULT_HPOS
));
513 out_compsel
= R200_OUTPUT_XYZW
;
514 if (vp_out
& (1 << VERT_RESULT_COL0
)) {
515 out_compsel
|= R200_OUTPUT_COLOR_0
;
517 if (vp_out
& (1 << VERT_RESULT_COL1
)) {
518 out_compsel
|= R200_OUTPUT_COLOR_1
;
520 if (vp_out
& (1 << VERT_RESULT_FOGC
)) {
521 out_compsel
|= R200_OUTPUT_DISCRETE_FOG
;
523 if (vp_out
& (1 << VERT_RESULT_PSIZ
)) {
524 out_compsel
|= R200_OUTPUT_PT_SIZE
;
526 for (i
= VERT_RESULT_TEX0
; i
< VERT_RESULT_TEX6
; i
++) {
527 if (vp_out
& (1 << i
)) {
528 out_compsel
|= R200_OUTPUT_TEX_0
<< (i
- VERT_RESULT_TEX0
);
531 if (rmesa
->hw
.vtx
.cmd
[VTX_TCL_OUTPUT_COMPSEL
] != out_compsel
) {
532 R200_STATECHANGE( rmesa
, vtx
);
533 rmesa
->hw
.vtx
.cmd
[VTX_TCL_OUTPUT_COMPSEL
] = out_compsel
;
537 /* Do the actual work:
539 radeonReleaseArrays( ctx
, ~0 /* stage->changed_inputs */ );
540 GLuint emit_end
= r200EnsureEmitSize( ctx
, vimap_rev
)
541 + rmesa
->radeon
.cmdbuf
.cs
->cdw
;
542 r200EmitArrays( ctx
, vimap_rev
);
544 for (i
= 0 ; i
< VB
->PrimitiveCount
; i
++)
546 GLuint prim
= _tnl_translate_prim(&VB
->Primitive
[i
]);
547 GLuint start
= VB
->Primitive
[i
].start
;
548 GLuint length
= VB
->Primitive
[i
].count
;
554 r200EmitEltPrimitive( ctx
, start
, start
+length
, prim
);
556 r200EmitPrimitive( ctx
, start
, start
+length
, prim
);
558 if ( emit_end
< rmesa
->radeon
.cmdbuf
.cs
->cdw
)
559 WARN_ONCE("Rendering was %d commands larger than predicted size."
560 " We might overflow command buffer.\n", rmesa
->radeon
.cmdbuf
.cs
->cdw
- emit_end
);
562 return GL_FALSE
; /* finished the pipe */
567 /* Initial state for tcl stage.
569 const struct tnl_pipeline_stage _r200_tcl_stage
=
576 r200_run_tcl_render
/* run */
581 /**********************************************************************/
582 /* Validate state at pipeline start */
583 /**********************************************************************/
586 /*-----------------------------------------------------------------------
587 * Manage TCL fallbacks
591 static void transition_to_swtnl( GLcontext
*ctx
)
593 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
594 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
596 R200_NEWPRIM( rmesa
);
598 r200ChooseVertexState( ctx
);
599 r200ChooseRenderState( ctx
);
601 _mesa_validate_all_lighting_tables( ctx
);
603 tnl
->Driver
.NotifyMaterialChange
=
604 _mesa_validate_all_lighting_tables
;
606 radeonReleaseArrays( ctx
, ~0 );
608 /* Still using the D3D based hardware-rasterizer from the radeon;
609 * need to put the card into D3D mode to make it work:
611 R200_STATECHANGE( rmesa
, vap
);
612 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] &= ~(R200_VAP_TCL_ENABLE
|R200_VAP_PROG_VTX_SHADER_ENABLE
);
615 static void transition_to_hwtnl( GLcontext
*ctx
)
617 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
618 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
620 _tnl_need_projected_coords( ctx
, GL_FALSE
);
622 r200UpdateMaterial( ctx
);
624 tnl
->Driver
.NotifyMaterialChange
= r200UpdateMaterial
;
626 if ( rmesa
->radeon
.dma
.flush
)
627 rmesa
->radeon
.dma
.flush( rmesa
->radeon
.glCtx
);
629 rmesa
->radeon
.dma
.flush
= NULL
;
631 R200_STATECHANGE( rmesa
, vap
);
632 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] |= R200_VAP_TCL_ENABLE
;
633 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] &= ~R200_VAP_FORCE_W_TO_ONE
;
635 if (ctx
->VertexProgram
._Enabled
) {
636 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] |= R200_VAP_PROG_VTX_SHADER_ENABLE
;
639 if ( ((rmesa
->hw
.ctx
.cmd
[CTX_PP_FOG_COLOR
] & R200_FOG_USE_MASK
)
640 == R200_FOG_USE_SPEC_ALPHA
) &&
641 (ctx
->Fog
.FogCoordinateSource
== GL_FOG_COORD
)) {
642 R200_STATECHANGE( rmesa
, ctx
);
643 rmesa
->hw
.ctx
.cmd
[CTX_PP_FOG_COLOR
] &= ~R200_FOG_USE_MASK
;
644 rmesa
->hw
.ctx
.cmd
[CTX_PP_FOG_COLOR
] |= R200_FOG_USE_VTX_FOG
;
647 R200_STATECHANGE( rmesa
, vte
);
648 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] &= ~(R200_VTX_XY_FMT
|R200_VTX_Z_FMT
);
649 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] |= R200_VTX_W0_FMT
;
651 if (R200_DEBUG
& DEBUG_FALLBACKS
)
652 fprintf(stderr
, "R200 end tcl fallback\n");
656 static char *fallbackStrings
[] = {
657 "Rasterization fallback",
658 "Unfilled triangles",
659 "Twosided lighting, differing materials",
660 "Materials in VB (maybe between begin/end)",
673 static char *getFallbackString(GLuint bit
)
680 return fallbackStrings
[i
];
685 void r200TclFallback( GLcontext
*ctx
, GLuint bit
, GLboolean mode
)
687 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
688 GLuint oldfallback
= rmesa
->radeon
.TclFallback
;
691 rmesa
->radeon
.TclFallback
|= bit
;
692 if (oldfallback
== 0) {
693 if (R200_DEBUG
& DEBUG_FALLBACKS
)
694 fprintf(stderr
, "R200 begin tcl fallback %s\n",
695 getFallbackString( bit
));
696 transition_to_swtnl( ctx
);
700 rmesa
->radeon
.TclFallback
&= ~bit
;
701 if (oldfallback
== bit
) {
702 if (R200_DEBUG
& DEBUG_FALLBACKS
)
703 fprintf(stderr
, "R200 end tcl fallback %s\n",
704 getFallbackString( bit
));
705 transition_to_hwtnl( ctx
);