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_ATTR( ATTR, STYLE, F0 ) \
69 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].attrib = (ATTR); \
70 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].format = (STYLE); \
71 rmesa->swtcl.vertex_attr_count++; \
75 #define EMIT_PAD( N ) \
77 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].attrib = 0; \
78 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].format = EMIT_PAD; \
79 rmesa->swtcl.vertex_attrs[rmesa->swtcl.vertex_attr_count].offset = (N); \
80 rmesa->swtcl.vertex_attr_count++; \
83 static void r200SetVertexFormat( GLcontext
*ctx
)
85 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
86 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
87 struct vertex_buffer
*VB
= &tnl
->vb
;
88 GLuint index
= tnl
->render_inputs
;
96 if ( VB
->NdcPtr
!= NULL
) {
97 VB
->AttribPtr
[VERT_ATTRIB_POS
] = VB
->NdcPtr
;
100 VB
->AttribPtr
[VERT_ATTRIB_POS
] = VB
->ClipPtr
;
103 assert( VB
->AttribPtr
[VERT_ATTRIB_POS
] != NULL
);
104 rmesa
->swtcl
.vertex_attr_count
= 0;
106 /* EMIT_ATTR's must be in order as they tell t_vertex.c how to
107 * build up a hardware vertex.
109 if ( !rmesa
->swtcl
.needproj
) {
110 EMIT_ATTR( _TNL_ATTRIB_POS
, EMIT_4F
, R200_VTX_XY
| R200_VTX_Z0
| R200_VTX_W0
);
114 EMIT_ATTR( _TNL_ATTRIB_POS
, EMIT_3F
, R200_VTX_XY
| R200_VTX_Z0
);
118 rmesa
->swtcl
.coloroffset
= offset
;
119 EMIT_ATTR( _TNL_ATTRIB_COLOR0
, EMIT_4UB_4F_RGBA
, (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_0_SHIFT
) );
122 rmesa
->swtcl
.specoffset
= 0;
123 if (index
& (_TNL_BIT_COLOR1
|_TNL_BIT_FOG
)) {
125 if (index
& _TNL_BIT_COLOR1
) {
126 rmesa
->swtcl
.specoffset
= offset
;
127 EMIT_ATTR( _TNL_ATTRIB_COLOR1
, EMIT_3UB_3F_RGB
, (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_1_SHIFT
) );
133 if (index
& _TNL_BIT_FOG
) {
134 EMIT_ATTR( _TNL_ATTRIB_FOG
, EMIT_1UB_1F
, (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_1_SHIFT
) );
141 if (index
& _TNL_BITS_TEX_ANY
) {
144 for (i
= 0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
145 if (index
& _TNL_BIT_TEX(i
)) {
146 GLuint sz
= VB
->TexCoordPtr
[i
]->size
;
148 fmt_1
|= sz
<< (3 * i
);
149 EMIT_ATTR( _TNL_ATTRIB_TEX0
+i
, EMIT_1F
+ sz
- 1, 0 );
156 if ( rmesa
->tnl_index
!= index
||
157 (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] != fmt_0
) ||
158 (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] != fmt_1
) ) {
160 R200_STATECHANGE( rmesa
, vtx
);
161 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] = fmt_0
;
162 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] = fmt_1
;
164 rmesa
->swtcl
.vertex_size
=
165 _tnl_install_attrs( ctx
,
166 rmesa
->swtcl
.vertex_attrs
,
167 rmesa
->swtcl
.vertex_attr_count
,
169 rmesa
->swtcl
.vertex_size
/= 4;
170 rmesa
->tnl_index
= index
;
175 static void r200RenderStart( GLcontext
*ctx
)
177 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
179 r200SetVertexFormat( ctx
);
181 if (rmesa
->dma
.flush
!= 0 &&
182 rmesa
->dma
.flush
!= flush_last_swtcl_prim
)
183 rmesa
->dma
.flush( rmesa
);
188 * Set vertex state for SW TCL. The primary purpose of this function is to
189 * determine in advance whether or not the hardware can / should do the
190 * projection divide or Mesa should do it.
192 void r200ChooseVertexState( GLcontext
*ctx
)
194 r200ContextPtr rmesa
= R200_CONTEXT( ctx
);
195 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
197 GLuint vte
= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
];
198 GLuint vap
= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
];
200 /* HW perspective divide is a win, but tiny vertex formats are a
203 if ( ((tnl
->render_inputs
& _TNL_BITS_TEX_ANY
) == 0)
204 || (ctx
->_TriangleCaps
& (DD_TRI_LIGHT_TWOSIDE
|DD_TRI_UNFILLED
))) {
205 rmesa
->swtcl
.needproj
= GL_TRUE
;
206 vte
|= R200_VTX_XY_FMT
| R200_VTX_Z_FMT
;
207 vap
|= R200_VAP_FORCE_W_TO_ONE
;
210 rmesa
->swtcl
.needproj
= GL_FALSE
;
211 vte
&= ~(R200_VTX_XY_FMT
| R200_VTX_Z_FMT
);
212 vap
&= ~R200_VAP_FORCE_W_TO_ONE
;
215 _tnl_need_projected_coords( ctx
, rmesa
->swtcl
.needproj
);
217 if (vte
!= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
]) {
218 R200_STATECHANGE( rmesa
, vte
);
219 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] = vte
;
222 if (vap
!= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
]) {
223 R200_STATECHANGE( rmesa
, vap
);
224 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] = vap
;
229 /* Flush vertices in the current dma region.
231 static void flush_last_swtcl_prim( r200ContextPtr rmesa
)
233 if (R200_DEBUG
& DEBUG_IOCTL
)
234 fprintf(stderr
, "%s\n", __FUNCTION__
);
236 rmesa
->dma
.flush
= 0;
238 if (rmesa
->dma
.current
.buf
) {
239 struct r200_dma_region
*current
= &rmesa
->dma
.current
;
240 GLuint current_offset
= (rmesa
->r200Screen
->gart_buffer_offset
+
241 current
->buf
->buf
->idx
* RADEON_BUFFER_SIZE
+
244 assert (!(rmesa
->swtcl
.hw_primitive
& R200_VF_PRIM_WALK_IND
));
246 assert (current
->start
+
247 rmesa
->swtcl
.numverts
* rmesa
->swtcl
.vertex_size
* 4 ==
250 if (rmesa
->dma
.current
.start
!= rmesa
->dma
.current
.ptr
) {
251 r200EnsureCmdBufSpace( rmesa
, VERT_AOS_BUFSZ
+
252 rmesa
->hw
.max_state_size
+ VBUF_BUFSZ
);
253 r200EmitVertexAOS( rmesa
,
254 rmesa
->swtcl
.vertex_size
,
257 r200EmitVbufPrim( rmesa
,
258 rmesa
->swtcl
.hw_primitive
,
259 rmesa
->swtcl
.numverts
);
262 rmesa
->swtcl
.numverts
= 0;
263 current
->start
= current
->ptr
;
268 /* Alloc space in the current dma region.
270 static __inline
void *r200AllocDmaLowVerts( r200ContextPtr rmesa
,
271 int nverts
, int vsize
)
273 GLuint bytes
= vsize
* nverts
;
275 if ( rmesa
->dma
.current
.ptr
+ bytes
> rmesa
->dma
.current
.end
)
276 r200RefillCurrentDmaRegion( rmesa
);
278 if (!rmesa
->dma
.flush
) {
279 rmesa
->glCtx
->Driver
.NeedFlush
|= FLUSH_STORED_VERTICES
;
280 rmesa
->dma
.flush
= flush_last_swtcl_prim
;
283 ASSERT( vsize
== rmesa
->swtcl
.vertex_size
* 4 );
284 ASSERT( rmesa
->dma
.flush
== flush_last_swtcl_prim
);
285 ASSERT( rmesa
->dma
.current
.start
+
286 rmesa
->swtcl
.numverts
* rmesa
->swtcl
.vertex_size
* 4 ==
287 rmesa
->dma
.current
.ptr
);
291 GLubyte
*head
= (GLubyte
*) (rmesa
->dma
.current
.address
+ rmesa
->dma
.current
.ptr
);
292 rmesa
->dma
.current
.ptr
+= bytes
;
293 rmesa
->swtcl
.numverts
+= nverts
;
300 /**************************************************************************/
303 static const GLuint reduced_hw_prim
[GL_POLYGON
+1] = {
308 R200_VF_PRIM_TRIANGLES
,
309 R200_VF_PRIM_TRIANGLES
,
310 R200_VF_PRIM_TRIANGLES
,
311 R200_VF_PRIM_TRIANGLES
,
312 R200_VF_PRIM_TRIANGLES
,
313 R200_VF_PRIM_TRIANGLES
316 static void r200RasterPrimitive( GLcontext
*ctx
, GLuint hwprim
);
317 static void r200RenderPrimitive( GLcontext
*ctx
, GLenum prim
);
318 static void r200ResetLineStipple( GLcontext
*ctx
);
320 /***********************************************************************
321 * Emit primitives as inline vertices *
322 ***********************************************************************/
324 #define HAVE_POINTS 1
326 #define HAVE_LINE_STRIPS 1
327 #define HAVE_TRIANGLES 1
328 #define HAVE_TRI_STRIPS 1
329 #define HAVE_TRI_STRIP_1 0
330 #define HAVE_TRI_FANS 1
332 #define HAVE_QUAD_STRIPS 0
333 #define HAVE_POLYGONS 1
338 #define CTX_ARG r200ContextPtr rmesa
339 #define CTX_ARG2 rmesa
340 #define GET_VERTEX_DWORDS() rmesa->swtcl.vertex_size
341 #define ALLOC_VERTS( n, size ) r200AllocDmaLowVerts( rmesa, n, size * 4 )
343 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
344 const char *r200verts = (char *)rmesa->swtcl.verts;
345 #define VERT(x) (r200Vertex *)(r200verts + ((x) * vertsize * sizeof(int)))
346 #define VERTEX r200Vertex
347 #define DO_DEBUG_VERTS (1 && (R200_DEBUG & DEBUG_VERTS))
350 #define TAG(x) r200_##x
351 #include "tnl_dd/t_dd_triemit.h"
354 /***********************************************************************
355 * Macros for t_dd_tritmp.h to draw basic primitives *
356 ***********************************************************************/
358 #define QUAD( a, b, c, d ) r200_quad( rmesa, a, b, c, d )
359 #define TRI( a, b, c ) r200_triangle( rmesa, a, b, c )
360 #define LINE( a, b ) r200_line( rmesa, a, b )
361 #define POINT( a ) r200_point( rmesa, a )
363 /***********************************************************************
364 * Build render functions from dd templates *
365 ***********************************************************************/
367 #define R200_TWOSIDE_BIT 0x01
368 #define R200_UNFILLED_BIT 0x02
369 #define R200_MAX_TRIFUNC 0x04
373 tnl_points_func points
;
375 tnl_triangle_func triangle
;
377 } rast_tab
[R200_MAX_TRIFUNC
];
380 #define DO_FALLBACK 0
381 #define DO_UNFILLED (IND & R200_UNFILLED_BIT)
382 #define DO_TWOSIDE (IND & R200_TWOSIDE_BIT)
389 #define DO_FULL_QUAD 1
393 #define HAVE_BACK_COLORS 0
394 #define HAVE_HW_FLATSHADE 1
397 #define DEPTH_SCALE 1.0
398 #define UNFILLED_TRI unfilled_tri
399 #define UNFILLED_QUAD unfilled_quad
400 #define VERT_X(_v) _v->v.x
401 #define VERT_Y(_v) _v->v.y
402 #define VERT_Z(_v) _v->v.z
403 #define AREA_IS_CCW( a ) (a < 0)
404 #define GET_VERTEX(e) (rmesa->swtcl.verts + (e*rmesa->swtcl.vertex_size*sizeof(int)))
406 #define VERT_SET_RGBA( v, c ) \
408 r200_color_t *color = (r200_color_t *)&((v)->ui[coloroffset]); \
409 UNCLAMPED_FLOAT_TO_UBYTE(color->red, (c)[0]); \
410 UNCLAMPED_FLOAT_TO_UBYTE(color->green, (c)[1]); \
411 UNCLAMPED_FLOAT_TO_UBYTE(color->blue, (c)[2]); \
412 UNCLAMPED_FLOAT_TO_UBYTE(color->alpha, (c)[3]); \
415 #define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
417 #define VERT_SET_SPEC( v, c ) \
420 r200_color_t *spec = (r200_color_t *)&((v)->ui[specoffset]); \
421 UNCLAMPED_FLOAT_TO_UBYTE(spec->red, (c)[0]); \
422 UNCLAMPED_FLOAT_TO_UBYTE(spec->green, (c)[1]); \
423 UNCLAMPED_FLOAT_TO_UBYTE(spec->blue, (c)[2]); \
426 #define VERT_COPY_SPEC( v0, v1 ) \
429 r200_color_t *spec0 = (r200_color_t *)&((v0)->ui[specoffset]); \
430 r200_color_t *spec1 = (r200_color_t *)&((v1)->ui[specoffset]); \
431 spec0->red = spec1->red; \
432 spec0->green = spec1->green; \
433 spec0->blue = spec1->blue; \
437 /* These don't need LE32_TO_CPU() as they used to save and restore
438 * colors which are already in the correct format.
440 #define VERT_SAVE_RGBA( idx ) color[idx] = v[idx]->ui[coloroffset]
441 #define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]
442 #define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset]
443 #define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
449 #define LOCAL_VARS(n) \
450 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
451 GLuint color[n], spec[n]; \
452 GLuint coloroffset = rmesa->swtcl.coloroffset; \
453 GLuint specoffset = rmesa->swtcl.specoffset; \
454 (void) color; (void) spec; (void) coloroffset; (void) specoffset;
456 /***********************************************************************
457 * Helpers for rendering unfilled primitives *
458 ***********************************************************************/
460 #define RASTERIZE(x) r200RasterPrimitive( ctx, reduced_hw_prim[x] )
461 #define RENDER_PRIMITIVE rmesa->swtcl.render_primitive
464 #include "tnl_dd/t_dd_unfilled.h"
468 /***********************************************************************
469 * Generate GL render functions *
470 ***********************************************************************/
475 #include "tnl_dd/t_dd_tritmp.h"
477 #define IND (R200_TWOSIDE_BIT)
478 #define TAG(x) x##_twoside
479 #include "tnl_dd/t_dd_tritmp.h"
481 #define IND (R200_UNFILLED_BIT)
482 #define TAG(x) x##_unfilled
483 #include "tnl_dd/t_dd_tritmp.h"
485 #define IND (R200_TWOSIDE_BIT|R200_UNFILLED_BIT)
486 #define TAG(x) x##_twoside_unfilled
487 #include "tnl_dd/t_dd_tritmp.h"
490 static void init_rast_tab( void )
495 init_twoside_unfilled();
498 /**********************************************************************/
499 /* Render unclipped begin/end objects */
500 /**********************************************************************/
502 #define RENDER_POINTS( start, count ) \
503 for ( ; start < count ; start++) \
504 r200_point( rmesa, VERT(start) )
505 #define RENDER_LINE( v0, v1 ) \
506 r200_line( rmesa, VERT(v0), VERT(v1) )
507 #define RENDER_TRI( v0, v1, v2 ) \
508 r200_triangle( rmesa, VERT(v0), VERT(v1), VERT(v2) )
509 #define RENDER_QUAD( v0, v1, v2, v3 ) \
510 r200_quad( rmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
511 #define INIT(x) do { \
512 r200RenderPrimitive( ctx, x ); \
516 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
517 const GLuint vertsize = rmesa->swtcl.vertex_size; \
518 const char *r200verts = (char *)rmesa->swtcl.verts; \
519 const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
520 const GLboolean stipple = ctx->Line.StippleFlag; \
521 (void) elt; (void) stipple;
522 #define RESET_STIPPLE if ( stipple ) r200ResetLineStipple( ctx );
523 #define RESET_OCCLUSION
524 #define PRESERVE_VB_DEFS
526 #define TAG(x) r200_##x##_verts
527 #include "tnl/t_vb_rendertmp.h"
530 #define TAG(x) r200_##x##_elts
531 #define ELT(x) elt[x]
532 #include "tnl/t_vb_rendertmp.h"
536 /**********************************************************************/
537 /* Choose render functions */
538 /**********************************************************************/
540 void r200ChooseRenderState( GLcontext
*ctx
)
542 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
543 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
545 GLuint flags
= ctx
->_TriangleCaps
;
547 if (!rmesa
->TclFallback
|| rmesa
->Fallback
)
550 if (flags
& DD_TRI_LIGHT_TWOSIDE
) index
|= R200_TWOSIDE_BIT
;
551 if (flags
& DD_TRI_UNFILLED
) index
|= R200_UNFILLED_BIT
;
553 if (index
!= rmesa
->swtcl
.RenderIndex
) {
554 tnl
->Driver
.Render
.Points
= rast_tab
[index
].points
;
555 tnl
->Driver
.Render
.Line
= rast_tab
[index
].line
;
556 tnl
->Driver
.Render
.ClippedLine
= rast_tab
[index
].line
;
557 tnl
->Driver
.Render
.Triangle
= rast_tab
[index
].triangle
;
558 tnl
->Driver
.Render
.Quad
= rast_tab
[index
].quad
;
561 tnl
->Driver
.Render
.PrimTabVerts
= r200_render_tab_verts
;
562 tnl
->Driver
.Render
.PrimTabElts
= r200_render_tab_elts
;
563 tnl
->Driver
.Render
.ClippedPolygon
= r200_fast_clipped_poly
;
565 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
566 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
567 tnl
->Driver
.Render
.ClippedPolygon
= _tnl_RenderClippedPolygon
;
570 rmesa
->swtcl
.RenderIndex
= index
;
575 /**********************************************************************/
576 /* High level hooks for t_vb_render.c */
577 /**********************************************************************/
580 static void r200RasterPrimitive( GLcontext
*ctx
, GLuint hwprim
)
582 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
584 if (rmesa
->swtcl
.hw_primitive
!= hwprim
) {
585 R200_NEWPRIM( rmesa
);
586 rmesa
->swtcl
.hw_primitive
= hwprim
;
590 static void r200RenderPrimitive( GLcontext
*ctx
, GLenum prim
)
592 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
593 rmesa
->swtcl
.render_primitive
= prim
;
594 if (prim
< GL_TRIANGLES
|| !(ctx
->_TriangleCaps
& DD_TRI_UNFILLED
))
595 r200RasterPrimitive( ctx
, reduced_hw_prim
[prim
] );
598 static void r200RenderFinish( GLcontext
*ctx
)
602 static void r200ResetLineStipple( GLcontext
*ctx
)
604 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
605 R200_STATECHANGE( rmesa
, lin
);
609 /**********************************************************************/
610 /* Transition to/from hardware rasterization. */
611 /**********************************************************************/
613 static const char * const fallbackStrings
[] = {
615 "glDrawBuffer(GL_FRONT_AND_BACK)",
616 "glEnable(GL_STENCIL) without hw stencil buffer",
617 "glRenderMode(selection or feedback)",
619 "glBlendFunc(mode != ADD)",
621 "Mixing GL_CLAMP_TO_BORDER and GL_CLAMP (or GL_MIRROR_CLAMP_ATI)"
625 static const char *getFallbackString(GLuint bit
)
632 return fallbackStrings
[i
];
636 void r200Fallback( GLcontext
*ctx
, GLuint bit
, GLboolean mode
)
638 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
639 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
640 GLuint oldfallback
= rmesa
->Fallback
;
643 rmesa
->Fallback
|= bit
;
644 if (oldfallback
== 0) {
645 R200_FIREVERTICES( rmesa
);
646 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_RASTER
, GL_TRUE
);
647 _swsetup_Wakeup( ctx
);
648 _tnl_need_projected_coords( ctx
, GL_TRUE
);
649 rmesa
->swtcl
.RenderIndex
= ~0;
650 if (R200_DEBUG
& DEBUG_FALLBACKS
) {
651 fprintf(stderr
, "R200 begin rasterization fallback: 0x%x %s\n",
652 bit
, getFallbackString(bit
));
657 rmesa
->Fallback
&= ~bit
;
658 if (oldfallback
== bit
) {
660 _swrast_flush( ctx
);
661 tnl
->Driver
.Render
.Start
= r200RenderStart
;
662 tnl
->Driver
.Render
.PrimitiveNotify
= r200RenderPrimitive
;
663 tnl
->Driver
.Render
.Finish
= r200RenderFinish
;
665 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
666 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
667 tnl
->Driver
.Render
.Interp
= _tnl_interp
;
669 tnl
->Driver
.Render
.ResetLineStipple
= r200ResetLineStipple
;
670 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_RASTER
, GL_FALSE
);
671 if (rmesa
->TclFallback
) {
672 /* These are already done if rmesa->TclFallback goes to
673 * zero above. But not if it doesn't (R200_NO_TCL for
676 r200ChooseVertexState( ctx
);
677 r200ChooseRenderState( ctx
);
679 if (R200_DEBUG
& DEBUG_FALLBACKS
) {
680 fprintf(stderr
, "R200 end rasterization fallback: 0x%x %s\n",
681 bit
, getFallbackString(bit
));
691 * Cope with depth operations by drawing individual pixels as points.
694 * The way the vertex state is set in this routine is hokey. It seems to
695 * work, but it's very hackish. This whole routine is pretty hackish. If
696 * the bitmap is small enough, it seems like it would be faster to copy it
697 * to AGP memory and use it as a non-power-of-two texture (i.e.,
698 * NV_texture_rectangle).
701 r200PointsBitmap( GLcontext
*ctx
, GLint px
, GLint py
,
702 GLsizei width
, GLsizei height
,
703 const struct gl_pixelstore_attrib
*unpack
,
704 const GLubyte
*bitmap
)
706 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
707 const GLfloat
*rc
= ctx
->Current
.RasterColor
;
716 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_BITMAP
, 1 );
718 /* Choose tiny vertex format
721 const GLuint fmt_0
= R200_VTX_XY
| R200_VTX_Z0
| R200_VTX_W0
722 | (R200_VTX_PK_RGBA
<< R200_VTX_COLOR_0_SHIFT
);
723 const GLuint fmt_1
= 0;
724 GLuint vte
= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
];
725 GLuint vap
= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
];
727 vte
&= ~(R200_VTX_XY_FMT
| R200_VTX_Z_FMT
);
728 vap
&= ~R200_VAP_FORCE_W_TO_ONE
;
730 rmesa
->swtcl
.vertex_size
= 5;
732 if ( (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] != fmt_0
)
733 || (rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] != fmt_1
) ) {
735 R200_STATECHANGE( rmesa
, vtx
);
736 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_0
] = fmt_0
;
737 rmesa
->hw
.vtx
.cmd
[VTX_VTXFMT_1
] = fmt_1
;
740 if (vte
!= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
]) {
741 R200_STATECHANGE( rmesa
, vte
);
742 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] = vte
;
745 if (vap
!= rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
]) {
746 R200_STATECHANGE( rmesa
, vap
);
747 rmesa
->hw
.vap
.cmd
[VAP_SE_VAP_CNTL
] = vap
;
751 /* Ready for point primitives:
753 r200RenderPrimitive( ctx
, GL_POINTS
);
755 /* Turn off the hw viewport transformation:
757 R200_STATECHANGE( rmesa
, vte
);
758 orig_vte
= rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
];
759 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] &= ~(R200_VPORT_X_SCALE_ENA
|
760 R200_VPORT_Y_SCALE_ENA
|
761 R200_VPORT_Z_SCALE_ENA
|
762 R200_VPORT_X_OFFSET_ENA
|
763 R200_VPORT_Y_OFFSET_ENA
|
764 R200_VPORT_Z_OFFSET_ENA
);
766 /* Turn off other stuff: Stipple?, texture?, blending?, etc.
770 /* Populate the vertex
772 * Incorporate FOG into RGBA
774 if (ctx
->Fog
.Enabled
) {
775 const GLfloat
*fc
= ctx
->Fog
.Color
;
779 if (ctx
->Fog
.FogCoordinateSource
== GL_FOG_COORDINATE_EXT
)
780 f
= _swrast_z_to_fogfactor(ctx
, ctx
->Current
.Attrib
[VERT_ATTRIB_FOG
][0]);
782 f
= _swrast_z_to_fogfactor(ctx
, ctx
->Current
.RasterDistance
);
784 color
[0] = f
* rc
[0] + (1.F
- f
) * fc
[0];
785 color
[1] = f
* rc
[1] + (1.F
- f
) * fc
[1];
786 color
[2] = f
* rc
[2] + (1.F
- f
) * fc
[2];
789 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.red
, color
[0]);
790 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.green
, color
[1]);
791 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.blue
, color
[2]);
792 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.alpha
, color
[3]);
795 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.red
, rc
[0]);
796 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.green
, rc
[1]);
797 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.blue
, rc
[2]);
798 UNCLAMPED_FLOAT_TO_CHAN(vert
.tv
.color
.alpha
, rc
[3]);
802 vert
.tv
.z
= ctx
->Current
.RasterPos
[2];
805 /* Update window height
807 LOCK_HARDWARE( rmesa
);
808 UNLOCK_HARDWARE( rmesa
);
809 h
= rmesa
->dri
.drawable
->h
+ rmesa
->dri
.drawable
->y
;
810 px
+= rmesa
->dri
.drawable
->x
;
812 /* Clipping handled by existing mechansims in r200_ioctl.c?
814 for (row
=0; row
<height
; row
++) {
815 const GLubyte
*src
= (const GLubyte
*)
816 _mesa_image_address( unpack
, bitmap
, width
, height
,
817 GL_COLOR_INDEX
, GL_BITMAP
, 0, row
, 0 );
819 if (unpack
->LsbFirst
) {
821 GLubyte mask
= 1U << (unpack
->SkipPixels
& 0x7);
822 for (col
=0; col
<width
; col
++) {
825 vert
.tv
.y
= h
- (py
+row
) - 1;
826 r200_point( rmesa
, &vert
);
829 mask
= ((mask
<< 1) & 0xff) | (mask
>> 7);
832 /* get ready for next row */
838 GLubyte mask
= 128U >> (unpack
->SkipPixels
& 0x7);
839 for (col
=0; col
<width
; col
++) {
842 vert
.tv
.y
= h
- (py
+row
) - 1;
843 r200_point( rmesa
, &vert
);
846 mask
= ((mask
<< 7) & 0xff) | (mask
>> 1);
848 /* get ready for next row */
854 /* Fire outstanding vertices, restore state
856 R200_STATECHANGE( rmesa
, vte
);
857 rmesa
->hw
.vte
.cmd
[VTE_SE_VTE_CNTL
] = orig_vte
;
861 TCL_FALLBACK( ctx
, R200_TCL_FALLBACK_BITMAP
, 0 );
863 /* Need to restore vertexformat?
865 if (rmesa
->TclFallback
)
866 r200ChooseVertexState( ctx
);
870 void r200FlushVertices( GLcontext
*ctx
, GLuint flags
)
872 _tnl_FlushVertices( ctx
, flags
);
874 if (flags
& FLUSH_STORED_VERTICES
)
875 R200_NEWPRIM( R200_CONTEXT( ctx
) );
878 /**********************************************************************/
879 /* Initialization. */
880 /**********************************************************************/
882 void r200InitSwtcl( GLcontext
*ctx
)
884 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
885 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
886 static int firsttime
= 1;
893 tnl
->Driver
.Render
.Start
= r200RenderStart
;
894 tnl
->Driver
.Render
.Finish
= r200RenderFinish
;
895 tnl
->Driver
.Render
.PrimitiveNotify
= r200RenderPrimitive
;
896 tnl
->Driver
.Render
.ResetLineStipple
= r200ResetLineStipple
;
897 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
898 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
899 tnl
->Driver
.Render
.Interp
= _tnl_interp
;
901 /* FIXME: what are these numbers? */
902 _tnl_init_vertices( ctx
, ctx
->Const
.MaxArrayLockSize
+ 12,
903 36 * sizeof(GLfloat
) );
905 rmesa
->swtcl
.verts
= (GLubyte
*)tnl
->clipspace
.vertex_buf
;
906 rmesa
->swtcl
.RenderIndex
= ~0;
907 rmesa
->swtcl
.render_primitive
= GL_TRIANGLES
;
908 rmesa
->swtcl
.hw_primitive
= 0;
912 void r200DestroySwtcl( GLcontext
*ctx
)
914 r200ContextPtr rmesa
= R200_CONTEXT(ctx
);
916 if (rmesa
->swtcl
.indexed_verts
.buf
)
917 r200ReleaseDmaRegion( rmesa
, &rmesa
->swtcl
.indexed_verts
, __FUNCTION__
);