1 /* $XFree86: xc/lib/GL/mesa/src/drv/r200/r200_swtcl.c,v 1.5 2003/05/06 23:52:08 daenzer Exp $ */
3 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
5 The Weather Channel (TM) funded Tungsten Graphics to develop the
6 initial release of the Radeon 8500 driver under the XFree86 license.
7 This notice must be preserved.
9 Permission is hereby granted, free of charge, to any person obtaining
10 a copy of this software and associated documentation files (the
11 "Software"), to deal in the Software without restriction, including
12 without limitation the rights to use, copy, modify, merge, publish,
13 distribute, sublicense, and/or sell copies of the Software, and to
14 permit persons to whom the Software is furnished to do so, subject to
15 the following conditions:
17 The above copyright notice and this permission notice (including the
18 next paragraph) shall be included in all copies or substantial
19 portions of the Software.
21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
25 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 **************************************************************************/
33 * Keith Whitwell <keith@tungstengraphics.com>
44 #include "swrast/s_context.h"
45 #include "swrast/s_fog.h"
46 #include "swrast_setup/swrast_setup.h"
47 #include "math/m_translate.h"
49 #include "tnl/t_context.h"
50 #include "tnl/t_pipeline.h"
51 #include "tnl/t_vtx_api.h"
53 #include "r200_context.h"
54 #include "r200_ioctl.h"
55 #include "r200_state.h"
56 #include "r200_swtcl.h"
60 static void flush_last_swtcl_prim( r200ContextPtr rmesa
);
63 /***********************************************************************
65 ***********************************************************************/
67 #define EMIT_SZ(sz) (EMIT_1F + (sz) - 1)
68 #define EMIT_ATTR( ATTR, STYLE, F0 ) \
70 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].attrib = (ATTR); \
71 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].format = (STYLE); \
72 rmesa->swtcl.vertex_attr_count++; \
76 #define EMIT_PAD( N ) \
78 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].attrib = 0; \
79 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].format = EMIT_PAD; \
80 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].offset = (N); \
81 rmesa->swtcl.vertex_attr_count++; \
84 static void r200SetVertexFormat( GLcontext
*ctx
)
86 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
87 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
88 struct vertex_buffer
*VB
= &tnl
->vb
;
89 GLuint index
= tnl
->render_inputs
;
97 if ( VB
->NdcPtr
!= NULL
) {
98 VB
->AttribPtr
[VERT_ATTRIB_POS
] = VB
->NdcPtr
;
101 VB
->AttribPtr
[VERT_ATTRIB_POS
] = VB
->ClipPtr
;
104 assert( VB
->AttribPtr
[VERT_ATTRIB_POS
] != NULL
);
105 rmesa
->swtcl
.vertex_attr_count
= 0;
107 /* EMIT_ATTR's must be in order as they tell t_vertex.c how to
108 * build up a hardware vertex.
110 if ( !rmesa
->swtcl
.needproj
) {
111 EMIT_ATTR( _TNL_ATTRIB_POS
, EMIT_4F
, R200_VTX_XY
| R200_VTX_Z0
| R200_VTX_W0
);
115 EMIT_ATTR( _TNL_ATTRIB_POS
, EMIT_3F
, R200_VTX_XY
| R200_VTX_Z0
);
119 rmesa
->swtcl
.coloroffset
= offset
;
120 EMIT_ATTR( _TNL_ATTRIB_COLOR0
, EMIT_4UB_4F_RGBA
, (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_0_SHIFT
) );
123 rmesa
->swtcl
.specoffset
= 0;
124 if (index
& (_TNL_BIT_COLOR1
|_TNL_BIT_FOG
)) {
126 if (index
& _TNL_BIT_COLOR1
) {
127 rmesa
->swtcl
.specoffset
= offset
;
128 EMIT_ATTR( _TNL_ATTRIB_COLOR1
, EMIT_3UB_3F_RGB
, (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_1_SHIFT
) );
134 if (index
& _TNL_BIT_FOG
) {
135 EMIT_ATTR( _TNL_ATTRIB_FOG
, EMIT_1UB_1F
, (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_1_SHIFT
) );
142 if (index
& _TNL_BITS_TEX_ANY
) {
145 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
146 if (index
& _TNL_BIT_TEX(i
)) {
147 GLuint sz
= VB
->TexCoordPtr
[i
]->size
;
150 /* r200 doesn't like 4D texcoords (is that true?):
153 emit
= EMIT_1F
+ (sz
- 1);
160 fmt_1
|= sz
<< (3 * i
);
161 EMIT_ATTR( _TNL_ATTRIB_TEX0
+i
, EMIT_SZ(sz
), 0 );
168 if ( (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] != fmt_0
)
169 || (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] != fmt_1
) ) {
171 R200_STATECHANGE( rmesa
, vtx
);
172 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] = fmt_0
;
173 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] = fmt_1
;
175 rmesa
->swtcl
.vertex_size
=
176 _tnl_install_attrs( ctx
,
177 rmesa
->swtcl
.vertex_attrs
,
178 rmesa
->swtcl
.vertex_attr_count
,
180 rmesa
->swtcl
.vertex_size
/= 4;
185 static void r200RenderStart( GLcontext
*ctx
)
187 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
189 r200SetVertexFormat( ctx
);
191 if (rmesa
->dma
.flush
!= 0 &&
192 rmesa
->dma
.flush
!= flush_last_swtcl_prim
)
193 rmesa
->dma
.flush( rmesa
);
198 * Set vertex state for SW TCL. The primary purpose of this function is to
199 * determine in advance whether or not the hardware can / should do the
200 * projection divide or Mesa should do it.
202 void r200ChooseVertexState( GLcontext
*ctx
)
204 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
205 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
207 GLuint vte
= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
];
208 GLuint vap
= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
];
210 /* HW perspective divide is a win, but tiny vertex formats are a
213 if ( ((tnl
->render_inputs
& _TNL_BITS_TEX_ANY
) == 0)
214 || (ctx
->_TriangleCaps
& (DD_TRI_LIGHT_TWOSIDE
|DD_TRI_UNFILLED
))) {
215 rmesa
->swtcl
.needproj
= GL_TRUE
;
216 vte
|= R200_VTX_XY_FMT
| R200_VTX_Z_FMT
;
217 vte
&= ~R200_VTX_W0_FMT
;
218 vap
|= R200_VAP_FORCE_W_TO_ONE
;
221 rmesa
->swtcl
.needproj
= GL_FALSE
;
222 vte
&= ~(R200_VTX_XY_FMT
| R200_VTX_Z_FMT
);
223 vte
|= R200_VTX_W0_FMT
;
224 vap
&= ~R200_VAP_FORCE_W_TO_ONE
;
227 _tnl_need_projected_coords( ctx
, rmesa
->swtcl
.needproj
);
229 if (vte
!= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
]) {
230 R200_STATECHANGE( rmesa
, vte
);
231 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] = vte
;
234 if (vap
!= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
]) {
235 R200_STATECHANGE( rmesa
, vap
);
236 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] = vap
;
241 /* Flush vertices in the current dma region.
243 static void flush_last_swtcl_prim( r200ContextPtr rmesa
)
245 if (R200_DEBUG
& DEBUG_IOCTL
)
246 fprintf(stderr
, "%s\n", __FUNCTION__
);
248 rmesa
->dma
.flush
= 0;
250 if (rmesa
->dma
.current
.buf
) {
251 struct r200_dma_region
*current
= &rmesa
->dma
.current
;
252 GLuint current_offset
= (rmesa
->r200Screen
->gart_buffer_offset
+
253 current
->buf
->buf
->idx
* RADEON_BUFFER_SIZE
+
256 assert (!(rmesa
->swtcl
.hw_primitive
& R200_VF_PRIM_WALK_IND
));
258 assert (current
->start
+
259 rmesa
->swtcl
.numverts
* rmesa
->swtcl
.vertex_size
* 4 ==
262 if (rmesa
->dma
.current
.start
!= rmesa
->dma
.current
.ptr
) {
263 r200EmitVertexAOS( rmesa
,
264 rmesa
->swtcl
.vertex_size
,
267 r200EmitVbufPrim( rmesa
,
268 rmesa
->swtcl
.hw_primitive
,
269 rmesa
->swtcl
.numverts
);
272 rmesa
->swtcl
.numverts
= 0;
273 current
->start
= current
->ptr
;
278 /* Alloc space in the current dma region.
280 static __inline
void *r200AllocDmaLowVerts( r200ContextPtr rmesa
,
281 int nverts
, int vsize
)
283 GLuint bytes
= vsize
* nverts
;
285 if ( rmesa
->dma
.current
.ptr
+ bytes
> rmesa
->dma
.current
.end
)
286 r200RefillCurrentDmaRegion( rmesa
);
288 if (!rmesa
->dma
.flush
) {
289 rmesa
->glCtx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
290 rmesa
->dma
.flush
= flush_last_swtcl_prim
;
293 ASSERT( vsize
== rmesa
->swtcl
.vertex_size
* 4 );
294 ASSERT( rmesa
->dma
.flush
== flush_last_swtcl_prim
);
295 ASSERT( rmesa
->dma
.current
.start
+
296 rmesa
->swtcl
.numverts
* rmesa
->swtcl
.vertex_size
* 4 ==
297 rmesa
->dma
.current
.ptr
);
301 GLubyte
*head
= (GLubyte
*) (rmesa
->dma
.current
.address
+ rmesa
->dma
.current
.ptr
);
302 rmesa
->dma
.current
.ptr
+= bytes
;
303 rmesa
->swtcl
.numverts
+= nverts
;
310 /**************************************************************************/
313 static const GLuint reduced_hw_prim
[GL_POLYGON
+1] = {
318 R200_VF_PRIM_TRIANGLES
,
319 R200_VF_PRIM_TRIANGLES
,
320 R200_VF_PRIM_TRIANGLES
,
321 R200_VF_PRIM_TRIANGLES
,
322 R200_VF_PRIM_TRIANGLES
,
323 R200_VF_PRIM_TRIANGLES
326 static void r200RasterPrimitive( GLcontext
*ctx
, GLuint hwprim
);
327 static void r200RenderPrimitive( GLcontext
*ctx
, GLenum prim
);
328 static void r200ResetLineStipple( GLcontext
*ctx
);
330 /***********************************************************************
331 * Emit primitives as inline vertices *
332 ***********************************************************************/
334 #define HAVE_POINTS 1
336 #define HAVE_LINE_STRIPS 1
337 #define HAVE_TRIANGLES 1
338 #define HAVE_TRI_STRIPS 1
339 #define HAVE_TRI_STRIP_1 0
340 #define HAVE_TRI_FANS 1
342 #define HAVE_QUAD_STRIPS 0
343 #define HAVE_POLYGONS 1
348 #define CTX_ARG r200ContextPtr rmesa
349 #define CTX_ARG2 rmesa
350 #define GET_VERTEX_DWORDS() rmesa->swtcl.vertex_size
351 #define ALLOC_VERTS( n, size ) r200AllocDmaLowVerts( rmesa, n, size * 4 )
353 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
354 const char *r200verts = (char *)rmesa->swtcl.verts;
355 #define VERT(x) (r200Vertex *)(r200verts + ((x) * vertsize * sizeof(int)))
356 #define VERTEX r200Vertex
357 #define DO_DEBUG_VERTS (1 && (R200_DEBUG & DEBUG_VERTS))
360 #define TAG(x) r200_##x
361 #include "tnl_dd/t_dd_triemit.h"
364 /***********************************************************************
365 * Macros for t_dd_tritmp.h to draw basic primitives *
366 ***********************************************************************/
368 #define QUAD( a, b, c, d ) r200_quad( rmesa, a, b, c, d )
369 #define TRI( a, b, c ) r200_triangle( rmesa, a, b, c )
370 #define LINE( a, b ) r200_line( rmesa, a, b )
371 #define POINT( a ) r200_point( rmesa, a )
373 /***********************************************************************
374 * Build render functions from dd templates *
375 ***********************************************************************/
377 #define R200_TWOSIDE_BIT 0x01
378 #define R200_UNFILLED_BIT 0x02
379 #define R200_MAX_TRIFUNC 0x04
385 triangle_func triangle
;
387 } rast_tab
[R200_MAX_TRIFUNC
];
390 #define DO_FALLBACK 0
391 #define DO_UNFILLED (IND & R200_UNFILLED_BIT)
392 #define DO_TWOSIDE (IND & R200_TWOSIDE_BIT)
399 #define DO_FULL_QUAD 1
404 #define HAVE_BACK_COLORS 0
405 #define HAVE_HW_FLATSHADE 1
408 #define DEPTH_SCALE 1.0
409 #define UNFILLED_TRI unfilled_tri
410 #define UNFILLED_QUAD unfilled_quad
411 #define VERT_X(_v) _v->v.x
412 #define VERT_Y(_v) _v->v.y
413 #define VERT_Z(_v) _v->v.z
414 #define AREA_IS_CCW( a ) (a < 0)
415 #define GET_VERTEX(e) (rmesa->swtcl.verts + (e*rmesa->swtcl.vertex_size*sizeof(int)))
417 #define VERT_SET_RGBA( v, c ) \
419 r200_color_t *color = (r200_color_t *)&((v)->ui[coloroffset]); \
420 UNCLAMPED_FLOAT_TO_UBYTE(color->red, (c)[0]); \
421 UNCLAMPED_FLOAT_TO_UBYTE(color->green, (c)[1]); \
422 UNCLAMPED_FLOAT_TO_UBYTE(color->blue, (c)[2]); \
423 UNCLAMPED_FLOAT_TO_UBYTE(color->alpha, (c)[3]); \
426 #define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
428 #define VERT_SET_SPEC( v, c ) \
431 r200_color_t *spec = (r200_color_t *)&((v)->ui[specoffset]); \
432 UNCLAMPED_FLOAT_TO_UBYTE(spec->red, (c)[0]); \
433 UNCLAMPED_FLOAT_TO_UBYTE(spec->green, (c)[1]); \
434 UNCLAMPED_FLOAT_TO_UBYTE(spec->blue, (c)[2]); \
437 #define VERT_COPY_SPEC( v0, v1 ) \
440 r200_color_t *spec0 = (r200_color_t *)&((v0)->ui[specoffset]); \
441 r200_color_t *spec1 = (r200_color_t *)&((v1)->ui[specoffset]); \
442 spec0->red = spec1->red; \
443 spec0->green = spec1->green; \
444 spec0->blue = spec1->blue; \
448 /* These don't need LE32_TO_CPU() as they used to save and restore
449 * colors which are already in the correct format.
451 #define VERT_SAVE_RGBA( idx ) color[idx] = v[idx]->ui[coloroffset]
452 #define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]
453 #define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset]
454 #define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
460 #define LOCAL_VARS(n) \
461 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
462 GLuint color[n], spec[n]; \
463 GLuint coloroffset = rmesa->swtcl.coloroffset; \
464 GLuint specoffset = rmesa->swtcl.specoffset; \
465 (void) color; (void) spec; (void) coloroffset; (void) specoffset;
467 /***********************************************************************
468 * Helpers for rendering unfilled primitives *
469 ***********************************************************************/
471 #define RASTERIZE(x) r200RasterPrimitive( ctx, reduced_hw_prim[x] )
472 #define RENDER_PRIMITIVE rmesa->swtcl.render_primitive
475 #include "tnl_dd/t_dd_unfilled.h"
479 /***********************************************************************
480 * Generate GL render functions *
481 ***********************************************************************/
486 #include "tnl_dd/t_dd_tritmp.h"
488 #define IND (R200_TWOSIDE_BIT)
489 #define TAG(x) x##_twoside
490 #include "tnl_dd/t_dd_tritmp.h"
492 #define IND (R200_UNFILLED_BIT)
493 #define TAG(x) x##_unfilled
494 #include "tnl_dd/t_dd_tritmp.h"
496 #define IND (R200_TWOSIDE_BIT|R200_UNFILLED_BIT)
497 #define TAG(x) x##_twoside_unfilled
498 #include "tnl_dd/t_dd_tritmp.h"
501 static void init_rast_tab( void )
506 init_twoside_unfilled();
509 /**********************************************************************/
510 /* Render unclipped begin/end objects */
511 /**********************************************************************/
513 #define RENDER_POINTS( start, count ) \
514 for ( ; start < count ; start++) \
515 r200_point( rmesa, VERT(start) )
516 #define RENDER_LINE( v0, v1 ) \
517 r200_line( rmesa, VERT(v0), VERT(v1) )
518 #define RENDER_TRI( v0, v1, v2 ) \
519 r200_triangle( rmesa, VERT(v0), VERT(v1), VERT(v2) )
520 #define RENDER_QUAD( v0, v1, v2, v3 ) \
521 r200_quad( rmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
522 #define INIT(x) do { \
523 r200RenderPrimitive( ctx, x ); \
527 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
528 const GLuint vertsize = rmesa->swtcl.vertex_size; \
529 const char *r200verts = (char *)rmesa->swtcl.verts; \
530 const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
531 const GLboolean stipple = ctx->Line.StippleFlag; \
532 (void) elt; (void) stipple;
533 #define RESET_STIPPLE if ( stipple ) r200ResetLineStipple( ctx );
534 #define RESET_OCCLUSION
535 #define PRESERVE_VB_DEFS
537 #define TAG(x) r200_##x##_verts
538 #include "tnl/t_vb_rendertmp.h"
541 #define TAG(x) r200_##x##_elts
542 #define ELT(x) elt[x]
543 #include "tnl/t_vb_rendertmp.h"
547 /**********************************************************************/
548 /* Choose render functions */
549 /**********************************************************************/
551 void r200ChooseRenderState( GLcontext
*ctx
)
553 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
554 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
556 GLuint flags
= ctx
->_TriangleCaps
;
558 if (!rmesa
->TclFallback
|| rmesa
->Fallback
)
561 if (flags
& DD_TRI_LIGHT_TWOSIDE
) index
|= R200_TWOSIDE_BIT
;
562 if (flags
& DD_TRI_UNFILLED
) index
|= R200_UNFILLED_BIT
;
564 if (index
!= rmesa
->swtcl
.RenderIndex
) {
565 tnl
->Driver
.Render
.Points
= rast_tab
[index
].points
;
566 tnl
->Driver
.Render
.Line
= rast_tab
[index
].line
;
567 tnl
->Driver
.Render
.ClippedLine
= rast_tab
[index
].line
;
568 tnl
->Driver
.Render
.Triangle
= rast_tab
[index
].triangle
;
569 tnl
->Driver
.Render
.Quad
= rast_tab
[index
].quad
;
572 tnl
->Driver
.Render
.PrimTabVerts
= r200_render_tab_verts
;
573 tnl
->Driver
.Render
.PrimTabElts
= r200_render_tab_elts
;
574 tnl
->Driver
.Render
.ClippedPolygon
= r200_fast_clipped_poly
;
576 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
577 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
578 tnl
->Driver
.Render
.ClippedPolygon
= _tnl_RenderClippedPolygon
;
581 rmesa
->swtcl
.RenderIndex
= index
;
586 /**********************************************************************/
587 /* High level hooks for t_vb_render.c */
588 /**********************************************************************/
591 static void r200RasterPrimitive( GLcontext
*ctx
, GLuint hwprim
)
593 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
595 if (rmesa
->swtcl
.hw_primitive
!= hwprim
) {
596 R200_NEWPRIM( rmesa
);
597 rmesa
->swtcl
.hw_primitive
= hwprim
;
601 static void r200RenderPrimitive( GLcontext
*ctx
, GLenum prim
)
603 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
604 rmesa
->swtcl
.render_primitive
= prim
;
605 if (prim
< GL_TRIANGLES
|| !(ctx
->_TriangleCaps
& DD_TRI_UNFILLED
))
606 r200RasterPrimitive( ctx
, reduced_hw_prim
[prim
] );
609 static void r200RenderFinish( GLcontext
*ctx
)
613 static void r200ResetLineStipple( GLcontext
*ctx
)
615 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
616 R200_STATECHANGE( rmesa
, lin
);
620 /**********************************************************************/
621 /* Transition to/from hardware rasterization. */
622 /**********************************************************************/
624 static const char * const fallbackStrings
[] = {
626 "glDrawBuffer(GL_FRONT_AND_BACK)",
627 "glEnable(GL_STENCIL) without hw stencil buffer",
628 "glRenderMode(selection or feedback)",
630 "glBlendFunc(mode != ADD)",
632 "Mixing GL_CLAMP_TO_BORDER and GL_CLAMP (or GL_MIRROR_CLAMP_ATI)"
636 static const char *getFallbackString(GLuint bit
)
643 return fallbackStrings
[i
];
647 void r200Fallback( GLcontext
*ctx
, GLuint bit
, GLboolean mode
)
649 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
650 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
651 GLuint oldfallback
= rmesa
->Fallback
;
654 rmesa
->Fallback
|= bit
;
655 if (oldfallback
== 0) {
656 R200_FIREVERTICES( rmesa
);
657 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_RASTER
, GL_TRUE
);
658 _swsetup_Wakeup( ctx
);
659 _tnl_need_projected_coords( ctx
, GL_TRUE
);
660 rmesa
->swtcl
.RenderIndex
= ~0;
661 if (R200_DEBUG
& DEBUG_FALLBACKS
) {
662 fprintf(stderr
, "R200 begin rasterization fallback: 0x%x %s\n",
663 bit
, getFallbackString(bit
));
668 rmesa
->Fallback
&= ~bit
;
669 if (oldfallback
== bit
) {
671 _swrast_flush( ctx
);
672 tnl
->Driver
.Render
.Start
= r200RenderStart
;
673 tnl
->Driver
.Render
.PrimitiveNotify
= r200RenderPrimitive
;
674 tnl
->Driver
.Render
.Finish
= r200RenderFinish
;
676 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
677 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
678 tnl
->Driver
.Render
.Interp
= _tnl_interp
;
680 tnl
->Driver
.Render
.ResetLineStipple
= r200ResetLineStipple
;
681 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_RASTER
, GL_FALSE
);
682 if (rmesa
->TclFallback
) {
683 /* These are already done if rmesa->TclFallback goes to
684 * zero above. But not if it doesn't (R200_NO_TCL for
687 r200ChooseVertexState( ctx
);
688 r200ChooseRenderState( ctx
);
690 if (R200_DEBUG
& DEBUG_FALLBACKS
) {
691 fprintf(stderr
, "R200 end rasterization fallback: 0x%x %s\n",
692 bit
, getFallbackString(bit
));
702 * Cope with depth operations by drawing individual pixels as points.
705 * The way the vertex state is set in this routine is hokey. It seems to
706 * work, but it's very hackish. This whole routine is pretty hackish. If
707 * the bitmap is small enough, it seems like it would be faster to copy it
708 * to AGP memory and use it as a non-power-of-two texture (i.e.,
709 * NV_texture_rectangle).
712 r200PointsBitmap( GLcontext
*ctx
, GLint px
, GLint py
,
713 GLsizei width
, GLsizei height
,
714 const struct gl_pixelstore_attrib
*unpack
,
715 const GLubyte
*bitmap
)
717 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
718 const GLfloat
*rc
= ctx
->Current
.RasterColor
;
727 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_BITMAP
, 1 );
729 /* Choose tiny vertex format
732 const GLuint fmt_0
= R200_VTX_XY
| R200_VTX_Z0
| R200_VTX_W0
733 | (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_0_SHIFT
);
734 const GLuint fmt_1
= 0;
735 GLuint vte
= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
];
736 GLuint vap
= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
];
738 vte
&= ~(R200_VTX_XY_FMT
| R200_VTX_Z_FMT
);
739 vte
|= R200_VTX_W0_FMT
;
740 vap
&= ~R200_VAP_FORCE_W_TO_ONE
;
742 rmesa
->swtcl
.vertex_size
= 5;
744 if ( (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] != fmt_0
)
745 || (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] != fmt_1
) ) {
747 R200_STATECHANGE( rmesa
, vtx
);
748 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] = fmt_0
;
749 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] = fmt_1
;
752 if (vte
!= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
]) {
753 R200_STATECHANGE( rmesa
, vte
);
754 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] = vte
;
757 if (vap
!= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
]) {
758 R200_STATECHANGE( rmesa
, vap
);
759 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] = vap
;
763 /* Ready for point primitives:
765 r200RenderPrimitive( ctx
, GL_POINTS
);
767 /* Turn off the hw viewport transformation:
769 R200_STATECHANGE( rmesa
, vte
);
770 orig_vte
= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
];
771 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] &= ~(R200_VPORT_X_SCALE_ENA
|
772 R200_VPORT_Y_SCALE_ENA
|
773 R200_VPORT_Z_SCALE_ENA
|
774 R200_VPORT_X_OFFSET_ENA
|
775 R200_VPORT_Y_OFFSET_ENA
|
776 R200_VPORT_Z_OFFSET_ENA
);
778 /* Turn off other stuff: Stipple?, texture?, blending?, etc.
782 /* Populate the vertex
784 * Incorporate FOG into RGBA
786 if (ctx
->Fog
.Enabled
) {
787 const GLfloat
*fc
= ctx
->Fog
.Color
;
791 if (ctx
->Fog
.FogCoordinateSource
== GL_FOG_COORDINATE_EXT
)
792 f
= _swrast_z_to_fogfactor(ctx
, ctx
->Current
.Attrib
[VERT_ATTRIB_FOG
][0]);
794 f
= _swrast_z_to_fogfactor(ctx
, ctx
->Current
.RasterDistance
);
796 color
[0] = f
* rc
[0] + (1.F
- f
) * fc
[0];
797 color
[1] = f
* rc
[1] + (1.F
- f
) * fc
[1];
798 color
[2] = f
* rc
[2] + (1.F
- f
) * fc
[2];
801 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.red
, color
[0]);
802 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.green
, color
[1]);
803 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.blue
, color
[2]);
804 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.alpha
, color
[3]);
807 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.red
, rc
[0]);
808 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.green
, rc
[1]);
809 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.blue
, rc
[2]);
810 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.alpha
, rc
[3]);
814 vert
.tv
.z
= ctx
->Current
.RasterPos
[2];
817 /* Update window height
819 LOCK_HARDWARE( rmesa
);
820 UNLOCK_HARDWARE( rmesa
);
821 h
= rmesa
->dri
.drawable
->h
+ rmesa
->dri
.drawable
->y
;
822 px
+= rmesa
->dri
.drawable
->x
;
824 /* Clipping handled by existing mechansims in r200_ioctl.c?
826 for (row
=0; row
<height
; row
++) {
827 const GLubyte
*src
= (const GLubyte
*)
828 _mesa_image_address( unpack
, bitmap
, width
, height
,
829 GL_COLOR_INDEX
, GL_BITMAP
, 0, row
, 0 );
831 if (unpack
->LsbFirst
) {
833 GLubyte mask
= 1U << (unpack
->SkipPixels
& 0x7);
834 for (col
=0; col
<width
; col
++) {
837 vert
.tv
.y
= h
- (py
+row
) - 1;
838 r200_point( rmesa
, &vert
);
841 mask
= ((mask
<< 1) & 0xff) | (mask
>> 7);
844 /* get ready for next row */
850 GLubyte mask
= 128U >> (unpack
->SkipPixels
& 0x7);
851 for (col
=0; col
<width
; col
++) {
854 vert
.tv
.y
= h
- (py
+row
) - 1;
855 r200_point( rmesa
, &vert
);
858 mask
= ((mask
<< 7) & 0xff) | (mask
>> 1);
860 /* get ready for next row */
866 /* Fire outstanding vertices, restore state
868 R200_STATECHANGE( rmesa
, vte
);
869 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] = orig_vte
;
873 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_BITMAP
, 0 );
875 /* Need to restore vertexformat?
877 if (rmesa
->TclFallback
)
878 r200ChooseVertexState( ctx
);
882 void r200FlushVertices( GLcontext
*ctx
, GLuint flags
)
884 _tnl_FlushVertices( ctx
, flags
);
886 if (flags
& FLUSH_STORED_VERTICES
)
887 R200_NEWPRIM( R200_CONTEXT( ctx
) );
890 /**********************************************************************/
891 /* Initialization. */
892 /**********************************************************************/
894 void r200InitSwtcl( GLcontext
*ctx
)
896 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
897 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
898 static int firsttime
= 1;
905 tnl
->Driver
.Render
.Start
= r200RenderStart
;
906 tnl
->Driver
.Render
.Finish
= r200RenderFinish
;
907 tnl
->Driver
.Render
.PrimitiveNotify
= r200RenderPrimitive
;
908 tnl
->Driver
.Render
.ResetLineStipple
= r200ResetLineStipple
;
909 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
910 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
911 tnl
->Driver
.Render
.Interp
= _tnl_interp
;
913 _tnl_init_vertices( ctx
, ctx
->Const
.MaxArrayLockSize
+ 12,
914 22 * sizeof(GLfloat
) );
916 rmesa
->swtcl
.verts
= (GLubyte
*)tnl
->clipspace
.vertex_buf
;
917 rmesa
->swtcl
.RenderIndex
= ~0;
918 rmesa
->swtcl
.render_primitive
= GL_TRIANGLES
;
919 rmesa
->swtcl
.hw_primitive
= 0;
923 void r200DestroySwtcl( GLcontext
*ctx
)
925 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
927 if (rmesa
->swtcl
.indexed_verts
.buf
)
928 r200ReleaseDmaRegion( rmesa
, &rmesa
->swtcl
.indexed_verts
, __FUNCTION__
);