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[mesa.git] / src / mesa / drivers / dri / r200 / r200_swtcl.c
1 /* $XFree86: xc/lib/GL/mesa/src/drv/r200/r200_swtcl.c,v 1.5 2003/05/06 23:52:08 daenzer Exp $ */
2 /*
3 Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
4
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.
8
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:
16
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.
20
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.
28
29 **************************************************************************/
30
31 /*
32 * Authors:
33 * Keith Whitwell <keith@tungstengraphics.com>
34 */
35
36 #include "glheader.h"
37 #include "mtypes.h"
38 #include "colormac.h"
39 #include "enums.h"
40 #include "image.h"
41 #include "imports.h"
42 #include "macros.h"
43
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"
48 #include "tnl/tnl.h"
49 #include "tnl/t_context.h"
50 #include "tnl/t_pipeline.h"
51 #include "tnl/t_vtx_api.h"
52
53 #include "r200_context.h"
54 #include "r200_ioctl.h"
55 #include "r200_state.h"
56 #include "r200_swtcl.h"
57 #include "r200_tcl.h"
58
59
60 static void flush_last_swtcl_prim( r200ContextPtr rmesa );
61
62
63 /***********************************************************************
64 * Initialization
65 ***********************************************************************/
66
67 #define EMIT_ATTR( ATTR, STYLE, F0 ) \
68 do { \
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++; \
72 fmt_0 |= F0; \
73 } while (0)
74
75 #define EMIT_PAD( N ) \
76 do { \
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++; \
81 } while (0)
82
83 static void r200SetVertexFormat( GLcontext *ctx )
84 {
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;
89 int fmt_0 = 0;
90 int fmt_1 = 0;
91 int offset = 0;
92
93
94 /* Important:
95 */
96 if ( VB->NdcPtr != NULL ) {
97 VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
98 }
99 else {
100 VB->AttribPtr[VERT_ATTRIB_POS] = VB->ClipPtr;
101 }
102
103 assert( VB->AttribPtr[VERT_ATTRIB_POS] != NULL );
104 rmesa->swtcl.vertex_attr_count = 0;
105
106 /* EMIT_ATTR's must be in order as they tell t_vertex.c how to
107 * build up a hardware vertex.
108 */
109 if ( !rmesa->swtcl.needproj || (index & _TNL_BITS_TEX_ANY)) { /* need w coord for projected textures */
110 EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F, R200_VTX_XY | R200_VTX_Z0 | R200_VTX_W0 );
111 offset = 4;
112 }
113 else {
114 EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F, R200_VTX_XY | R200_VTX_Z0 );
115 offset = 3;
116 }
117
118 rmesa->swtcl.coloroffset = offset;
119 #if MESA_LITTLE_ENDIAN
120 EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_RGBA, (R200_VTX_PK_RGBA << R200_VTX_COLOR_0_SHIFT) );
121 #else
122 EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_ABGR, (R200_VTX_PK_RGBA << R200_VTX_COLOR_0_SHIFT) );
123 #endif
124 offset += 1;
125
126 rmesa->swtcl.specoffset = 0;
127 if (index & (_TNL_BIT_COLOR1|_TNL_BIT_FOG)) {
128
129 #if MESA_LITTLE_ENDIAN
130 if (index & _TNL_BIT_COLOR1) {
131 rmesa->swtcl.specoffset = offset;
132 EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_RGB, (R200_VTX_PK_RGBA << R200_VTX_COLOR_1_SHIFT) );
133 }
134 else {
135 EMIT_PAD( 3 );
136 }
137
138 if (index & _TNL_BIT_FOG) {
139 EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, (R200_VTX_PK_RGBA << R200_VTX_COLOR_1_SHIFT) );
140 }
141 else {
142 EMIT_PAD( 1 );
143 }
144 #else
145 if (index & _TNL_BIT_FOG) {
146 EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, (R200_VTX_PK_RGBA << R200_VTX_COLOR_1_SHIFT) );
147 }
148 else {
149 EMIT_PAD( 1 );
150 }
151
152 if (index & _TNL_BIT_COLOR1) {
153 rmesa->swtcl.specoffset = offset;
154 EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, (R200_VTX_PK_RGBA << R200_VTX_COLOR_1_SHIFT) );
155 }
156 else {
157 EMIT_PAD( 3 );
158 }
159 #endif
160 }
161
162 if (index & _TNL_BITS_TEX_ANY) {
163 int i;
164
165 for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
166 if (index & _TNL_BIT_TEX(i)) {
167 GLuint sz = VB->TexCoordPtr[i]->size;
168
169 fmt_1 |= sz << (3 * i);
170 EMIT_ATTR( _TNL_ATTRIB_TEX0+i, EMIT_1F + sz - 1, 0 );
171 }
172 }
173 }
174
175 if ( (rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] & R200_FOG_USE_MASK)
176 != R200_FOG_USE_SPEC_ALPHA ) {
177 R200_STATECHANGE( rmesa, ctx );
178 rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] &= ~R200_FOG_USE_MASK;
179 rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] |= R200_FOG_USE_SPEC_ALPHA;
180 }
181
182 if ( rmesa->tnl_index != index ||
183 (rmesa->hw.vtx.cmd[VTX_VTXFMT_0] != fmt_0) ||
184 (rmesa->hw.vtx.cmd[VTX_VTXFMT_1] != fmt_1) ) {
185 R200_NEWPRIM(rmesa);
186 R200_STATECHANGE( rmesa, vtx );
187 rmesa->hw.vtx.cmd[VTX_VTXFMT_0] = fmt_0;
188 rmesa->hw.vtx.cmd[VTX_VTXFMT_1] = fmt_1;
189
190 rmesa->swtcl.vertex_size =
191 _tnl_install_attrs( ctx,
192 rmesa->swtcl.vertex_attrs,
193 rmesa->swtcl.vertex_attr_count,
194 NULL, 0 );
195 rmesa->swtcl.vertex_size /= 4;
196 rmesa->tnl_index = index;
197 }
198 }
199
200
201 static void r200RenderStart( GLcontext *ctx )
202 {
203 r200ContextPtr rmesa = R200_CONTEXT( ctx );
204
205 r200SetVertexFormat( ctx );
206
207 if (rmesa->dma.flush != 0 &&
208 rmesa->dma.flush != flush_last_swtcl_prim)
209 rmesa->dma.flush( rmesa );
210 }
211
212
213 /**
214 * Set vertex state for SW TCL. The primary purpose of this function is to
215 * determine in advance whether or not the hardware can / should do the
216 * projection divide or Mesa should do it.
217 */
218 void r200ChooseVertexState( GLcontext *ctx )
219 {
220 r200ContextPtr rmesa = R200_CONTEXT( ctx );
221 TNLcontext *tnl = TNL_CONTEXT(ctx);
222
223 /* We must ensure that we don't do _tnl_need_projected_coords while in a
224 * rasterization fallback. As this function will be called again when we
225 * leave a rasterization fallback, we can just skip it for now.
226 */
227 if (rmesa->Fallback != 0)
228 return;
229
230 GLuint vte = rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL];
231 GLuint vap = rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL];
232
233 /* HW perspective divide is a win, but tiny vertex formats are a
234 * bigger one.
235 */
236 if ( ((tnl->render_inputs & _TNL_BITS_TEX_ANY) == 0)
237 || (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
238 rmesa->swtcl.needproj = GL_TRUE;
239 vte |= R200_VTX_XY_FMT | R200_VTX_Z_FMT;
240 vte &= ~R200_VTX_W0_FMT;
241 if (tnl->render_inputs & _TNL_BITS_TEX_ANY) {
242 vap &= ~R200_VAP_FORCE_W_TO_ONE;
243 }
244 else {
245 vap |= R200_VAP_FORCE_W_TO_ONE;
246 }
247 }
248 else {
249 rmesa->swtcl.needproj = GL_FALSE;
250 vte &= ~(R200_VTX_XY_FMT | R200_VTX_Z_FMT);
251 vte |= R200_VTX_W0_FMT;
252 vap &= ~R200_VAP_FORCE_W_TO_ONE;
253 }
254
255 _tnl_need_projected_coords( ctx, rmesa->swtcl.needproj );
256
257 if (vte != rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL]) {
258 R200_STATECHANGE( rmesa, vte );
259 rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL] = vte;
260 }
261
262 if (vap != rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL]) {
263 R200_STATECHANGE( rmesa, vap );
264 rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL] = vap;
265 }
266 }
267
268
269 /* Flush vertices in the current dma region.
270 */
271 static void flush_last_swtcl_prim( r200ContextPtr rmesa )
272 {
273 if (R200_DEBUG & DEBUG_IOCTL)
274 fprintf(stderr, "%s\n", __FUNCTION__);
275
276 rmesa->dma.flush = NULL;
277
278 if (rmesa->dma.current.buf) {
279 struct r200_dma_region *current = &rmesa->dma.current;
280 GLuint current_offset = (rmesa->r200Screen->gart_buffer_offset +
281 current->buf->buf->idx * RADEON_BUFFER_SIZE +
282 current->start);
283
284 assert (!(rmesa->swtcl.hw_primitive & R200_VF_PRIM_WALK_IND));
285
286 assert (current->start +
287 rmesa->swtcl.numverts * rmesa->swtcl.vertex_size * 4 ==
288 current->ptr);
289
290 if (rmesa->dma.current.start != rmesa->dma.current.ptr) {
291 r200EnsureCmdBufSpace( rmesa, VERT_AOS_BUFSZ +
292 rmesa->hw.max_state_size + VBUF_BUFSZ );
293 r200EmitVertexAOS( rmesa,
294 rmesa->swtcl.vertex_size,
295 current_offset);
296
297 r200EmitVbufPrim( rmesa,
298 rmesa->swtcl.hw_primitive,
299 rmesa->swtcl.numverts);
300 }
301
302 rmesa->swtcl.numverts = 0;
303 current->start = current->ptr;
304 }
305 }
306
307
308 /* Alloc space in the current dma region.
309 */
310 static INLINE void *
311 r200AllocDmaLowVerts( r200ContextPtr rmesa, int nverts, int vsize )
312 {
313 GLuint bytes = vsize * nverts;
314
315 if ( rmesa->dma.current.ptr + bytes > rmesa->dma.current.end )
316 r200RefillCurrentDmaRegion( rmesa );
317
318 if (!rmesa->dma.flush) {
319 rmesa->glCtx->Driver.NeedFlush |= FLUSH_STORED_VERTICES;
320 rmesa->dma.flush = flush_last_swtcl_prim;
321 }
322
323 ASSERT( vsize == rmesa->swtcl.vertex_size * 4 );
324 ASSERT( rmesa->dma.flush == flush_last_swtcl_prim );
325 ASSERT( rmesa->dma.current.start +
326 rmesa->swtcl.numverts * rmesa->swtcl.vertex_size * 4 ==
327 rmesa->dma.current.ptr );
328
329
330 {
331 GLubyte *head = (GLubyte *) (rmesa->dma.current.address + rmesa->dma.current.ptr);
332 rmesa->dma.current.ptr += bytes;
333 rmesa->swtcl.numverts += nverts;
334 return head;
335 }
336
337 }
338
339
340 /**************************************************************************/
341
342
343 static const GLuint reduced_hw_prim[GL_POLYGON+1] = {
344 R200_VF_PRIM_POINTS,
345 R200_VF_PRIM_LINES,
346 R200_VF_PRIM_LINES,
347 R200_VF_PRIM_LINES,
348 R200_VF_PRIM_TRIANGLES,
349 R200_VF_PRIM_TRIANGLES,
350 R200_VF_PRIM_TRIANGLES,
351 R200_VF_PRIM_TRIANGLES,
352 R200_VF_PRIM_TRIANGLES,
353 R200_VF_PRIM_TRIANGLES
354 };
355
356 static void r200RasterPrimitive( GLcontext *ctx, GLuint hwprim );
357 static void r200RenderPrimitive( GLcontext *ctx, GLenum prim );
358 static void r200ResetLineStipple( GLcontext *ctx );
359
360 /***********************************************************************
361 * Emit primitives as inline vertices *
362 ***********************************************************************/
363
364 #define HAVE_POINTS 1
365 #define HAVE_LINES 1
366 #define HAVE_LINE_STRIPS 1
367 #define HAVE_TRIANGLES 1
368 #define HAVE_TRI_STRIPS 1
369 #define HAVE_TRI_STRIP_1 0
370 #define HAVE_TRI_FANS 1
371 #define HAVE_QUADS 0
372 #define HAVE_QUAD_STRIPS 0
373 #define HAVE_POLYGONS 1
374 #define HAVE_ELTS 0
375
376 #undef LOCAL_VARS
377 #undef ALLOC_VERTS
378 #define CTX_ARG r200ContextPtr rmesa
379 #define GET_VERTEX_DWORDS() rmesa->swtcl.vertex_size
380 #define ALLOC_VERTS( n, size ) r200AllocDmaLowVerts( rmesa, n, size * 4 )
381 #define LOCAL_VARS \
382 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
383 const char *r200verts = (char *)rmesa->swtcl.verts;
384 #define VERT(x) (r200Vertex *)(r200verts + ((x) * vertsize * sizeof(int)))
385 #define VERTEX r200Vertex
386 #define DO_DEBUG_VERTS (1 && (R200_DEBUG & DEBUG_VERTS))
387
388 #undef TAG
389 #define TAG(x) r200_##x
390 #include "tnl_dd/t_dd_triemit.h"
391
392
393 /***********************************************************************
394 * Macros for t_dd_tritmp.h to draw basic primitives *
395 ***********************************************************************/
396
397 #define QUAD( a, b, c, d ) r200_quad( rmesa, a, b, c, d )
398 #define TRI( a, b, c ) r200_triangle( rmesa, a, b, c )
399 #define LINE( a, b ) r200_line( rmesa, a, b )
400 #define POINT( a ) r200_point( rmesa, a )
401
402 /***********************************************************************
403 * Build render functions from dd templates *
404 ***********************************************************************/
405
406 #define R200_TWOSIDE_BIT 0x01
407 #define R200_UNFILLED_BIT 0x02
408 #define R200_MAX_TRIFUNC 0x04
409
410
411 static struct {
412 tnl_points_func points;
413 tnl_line_func line;
414 tnl_triangle_func triangle;
415 tnl_quad_func quad;
416 } rast_tab[R200_MAX_TRIFUNC];
417
418
419 #define DO_FALLBACK 0
420 #define DO_UNFILLED (IND & R200_UNFILLED_BIT)
421 #define DO_TWOSIDE (IND & R200_TWOSIDE_BIT)
422 #define DO_FLAT 0
423 #define DO_OFFSET 0
424 #define DO_TRI 1
425 #define DO_QUAD 1
426 #define DO_LINE 1
427 #define DO_POINTS 1
428 #define DO_FULL_QUAD 1
429
430 #define HAVE_RGBA 1
431 #define HAVE_SPEC 1
432 #define HAVE_BACK_COLORS 0
433 #define HAVE_HW_FLATSHADE 1
434 #define TAB rast_tab
435
436 #define DEPTH_SCALE 1.0
437 #define UNFILLED_TRI unfilled_tri
438 #define UNFILLED_QUAD unfilled_quad
439 #define VERT_X(_v) _v->v.x
440 #define VERT_Y(_v) _v->v.y
441 #define VERT_Z(_v) _v->v.z
442 #define AREA_IS_CCW( a ) (a < 0)
443 #define GET_VERTEX(e) (rmesa->swtcl.verts + (e*rmesa->swtcl.vertex_size*sizeof(int)))
444
445 #define VERT_SET_RGBA( v, c ) \
446 do { \
447 r200_color_t *color = (r200_color_t *)&((v)->ui[coloroffset]); \
448 UNCLAMPED_FLOAT_TO_UBYTE(color->red, (c)[0]); \
449 UNCLAMPED_FLOAT_TO_UBYTE(color->green, (c)[1]); \
450 UNCLAMPED_FLOAT_TO_UBYTE(color->blue, (c)[2]); \
451 UNCLAMPED_FLOAT_TO_UBYTE(color->alpha, (c)[3]); \
452 } while (0)
453
454 #define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
455
456 #define VERT_SET_SPEC( v, c ) \
457 do { \
458 if (specoffset) { \
459 r200_color_t *spec = (r200_color_t *)&((v)->ui[specoffset]); \
460 UNCLAMPED_FLOAT_TO_UBYTE(spec->red, (c)[0]); \
461 UNCLAMPED_FLOAT_TO_UBYTE(spec->green, (c)[1]); \
462 UNCLAMPED_FLOAT_TO_UBYTE(spec->blue, (c)[2]); \
463 } \
464 } while (0)
465 #define VERT_COPY_SPEC( v0, v1 ) \
466 do { \
467 if (specoffset) { \
468 r200_color_t *spec0 = (r200_color_t *)&((v0)->ui[specoffset]); \
469 r200_color_t *spec1 = (r200_color_t *)&((v1)->ui[specoffset]); \
470 spec0->red = spec1->red; \
471 spec0->green = spec1->green; \
472 spec0->blue = spec1->blue; \
473 } \
474 } while (0)
475
476 /* These don't need LE32_TO_CPU() as they used to save and restore
477 * colors which are already in the correct format.
478 */
479 #define VERT_SAVE_RGBA( idx ) color[idx] = v[idx]->ui[coloroffset]
480 #define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]
481 #define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset]
482 #define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
483
484 #undef LOCAL_VARS
485 #undef TAG
486 #undef INIT
487
488 #define LOCAL_VARS(n) \
489 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
490 GLuint color[n], spec[n]; \
491 GLuint coloroffset = rmesa->swtcl.coloroffset; \
492 GLuint specoffset = rmesa->swtcl.specoffset; \
493 (void) color; (void) spec; (void) coloroffset; (void) specoffset;
494
495 /***********************************************************************
496 * Helpers for rendering unfilled primitives *
497 ***********************************************************************/
498
499 #define RASTERIZE(x) r200RasterPrimitive( ctx, reduced_hw_prim[x] )
500 #define RENDER_PRIMITIVE rmesa->swtcl.render_primitive
501 #undef TAG
502 #define TAG(x) x
503 #include "tnl_dd/t_dd_unfilled.h"
504 #undef IND
505
506
507 /***********************************************************************
508 * Generate GL render functions *
509 ***********************************************************************/
510
511
512 #define IND (0)
513 #define TAG(x) x
514 #include "tnl_dd/t_dd_tritmp.h"
515
516 #define IND (R200_TWOSIDE_BIT)
517 #define TAG(x) x##_twoside
518 #include "tnl_dd/t_dd_tritmp.h"
519
520 #define IND (R200_UNFILLED_BIT)
521 #define TAG(x) x##_unfilled
522 #include "tnl_dd/t_dd_tritmp.h"
523
524 #define IND (R200_TWOSIDE_BIT|R200_UNFILLED_BIT)
525 #define TAG(x) x##_twoside_unfilled
526 #include "tnl_dd/t_dd_tritmp.h"
527
528
529 static void init_rast_tab( void )
530 {
531 init();
532 init_twoside();
533 init_unfilled();
534 init_twoside_unfilled();
535 }
536
537 /**********************************************************************/
538 /* Render unclipped begin/end objects */
539 /**********************************************************************/
540
541 #define RENDER_POINTS( start, count ) \
542 for ( ; start < count ; start++) \
543 r200_point( rmesa, VERT(start) )
544 #define RENDER_LINE( v0, v1 ) \
545 r200_line( rmesa, VERT(v0), VERT(v1) )
546 #define RENDER_TRI( v0, v1, v2 ) \
547 r200_triangle( rmesa, VERT(v0), VERT(v1), VERT(v2) )
548 #define RENDER_QUAD( v0, v1, v2, v3 ) \
549 r200_quad( rmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
550 #define INIT(x) do { \
551 r200RenderPrimitive( ctx, x ); \
552 } while (0)
553 #undef LOCAL_VARS
554 #define LOCAL_VARS \
555 r200ContextPtr rmesa = R200_CONTEXT(ctx); \
556 const GLuint vertsize = rmesa->swtcl.vertex_size; \
557 const char *r200verts = (char *)rmesa->swtcl.verts; \
558 const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
559 const GLboolean stipple = ctx->Line.StippleFlag; \
560 (void) elt; (void) stipple;
561 #define RESET_STIPPLE if ( stipple ) r200ResetLineStipple( ctx );
562 #define RESET_OCCLUSION
563 #define PRESERVE_VB_DEFS
564 #define ELT(x) (x)
565 #define TAG(x) r200_##x##_verts
566 #include "tnl/t_vb_rendertmp.h"
567 #undef ELT
568 #undef TAG
569 #define TAG(x) r200_##x##_elts
570 #define ELT(x) elt[x]
571 #include "tnl/t_vb_rendertmp.h"
572
573
574
575 /**********************************************************************/
576 /* Choose render functions */
577 /**********************************************************************/
578
579 void r200ChooseRenderState( GLcontext *ctx )
580 {
581 TNLcontext *tnl = TNL_CONTEXT(ctx);
582 r200ContextPtr rmesa = R200_CONTEXT(ctx);
583 GLuint index = 0;
584 GLuint flags = ctx->_TriangleCaps;
585
586 if (!rmesa->TclFallback || rmesa->Fallback)
587 return;
588
589 if (flags & DD_TRI_LIGHT_TWOSIDE) index |= R200_TWOSIDE_BIT;
590 if (flags & DD_TRI_UNFILLED) index |= R200_UNFILLED_BIT;
591
592 if (index != rmesa->swtcl.RenderIndex) {
593 tnl->Driver.Render.Points = rast_tab[index].points;
594 tnl->Driver.Render.Line = rast_tab[index].line;
595 tnl->Driver.Render.ClippedLine = rast_tab[index].line;
596 tnl->Driver.Render.Triangle = rast_tab[index].triangle;
597 tnl->Driver.Render.Quad = rast_tab[index].quad;
598
599 if (index == 0) {
600 tnl->Driver.Render.PrimTabVerts = r200_render_tab_verts;
601 tnl->Driver.Render.PrimTabElts = r200_render_tab_elts;
602 tnl->Driver.Render.ClippedPolygon = r200_fast_clipped_poly;
603 } else {
604 tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
605 tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
606 tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon;
607 }
608
609 rmesa->swtcl.RenderIndex = index;
610 }
611 }
612
613
614 /**********************************************************************/
615 /* High level hooks for t_vb_render.c */
616 /**********************************************************************/
617
618
619 static void r200RasterPrimitive( GLcontext *ctx, GLuint hwprim )
620 {
621 r200ContextPtr rmesa = R200_CONTEXT(ctx);
622
623 if (rmesa->swtcl.hw_primitive != hwprim) {
624 R200_NEWPRIM( rmesa );
625 rmesa->swtcl.hw_primitive = hwprim;
626 }
627 }
628
629 static void r200RenderPrimitive( GLcontext *ctx, GLenum prim )
630 {
631 r200ContextPtr rmesa = R200_CONTEXT(ctx);
632 rmesa->swtcl.render_primitive = prim;
633 if (prim < GL_TRIANGLES || !(ctx->_TriangleCaps & DD_TRI_UNFILLED))
634 r200RasterPrimitive( ctx, reduced_hw_prim[prim] );
635 }
636
637 static void r200RenderFinish( GLcontext *ctx )
638 {
639 }
640
641 static void r200ResetLineStipple( GLcontext *ctx )
642 {
643 r200ContextPtr rmesa = R200_CONTEXT(ctx);
644 R200_STATECHANGE( rmesa, lin );
645 }
646
647
648 /**********************************************************************/
649 /* Transition to/from hardware rasterization. */
650 /**********************************************************************/
651
652 static const char * const fallbackStrings[] = {
653 "Texture mode",
654 "glDrawBuffer(GL_FRONT_AND_BACK)",
655 "glEnable(GL_STENCIL) without hw stencil buffer",
656 "glRenderMode(selection or feedback)",
657 "R200_NO_RAST",
658 "Mixing GL_CLAMP_TO_BORDER and GL_CLAMP (or GL_MIRROR_CLAMP_ATI)"
659 };
660
661
662 static const char *getFallbackString(GLuint bit)
663 {
664 int i = 0;
665 while (bit > 1) {
666 i++;
667 bit >>= 1;
668 }
669 return fallbackStrings[i];
670 }
671
672
673 void r200Fallback( GLcontext *ctx, GLuint bit, GLboolean mode )
674 {
675 r200ContextPtr rmesa = R200_CONTEXT(ctx);
676 TNLcontext *tnl = TNL_CONTEXT(ctx);
677 GLuint oldfallback = rmesa->Fallback;
678
679 if (mode) {
680 rmesa->Fallback |= bit;
681 if (oldfallback == 0) {
682 R200_FIREVERTICES( rmesa );
683 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_RASTER, GL_TRUE );
684 _swsetup_Wakeup( ctx );
685 rmesa->swtcl.RenderIndex = ~0;
686 if (R200_DEBUG & DEBUG_FALLBACKS) {
687 fprintf(stderr, "R200 begin rasterization fallback: 0x%x %s\n",
688 bit, getFallbackString(bit));
689 }
690 }
691 }
692 else {
693 rmesa->Fallback &= ~bit;
694 if (oldfallback == bit) {
695
696 _swrast_flush( ctx );
697 tnl->Driver.Render.Start = r200RenderStart;
698 tnl->Driver.Render.PrimitiveNotify = r200RenderPrimitive;
699 tnl->Driver.Render.Finish = r200RenderFinish;
700
701 tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
702 tnl->Driver.Render.CopyPV = _tnl_copy_pv;
703 tnl->Driver.Render.Interp = _tnl_interp;
704
705 tnl->Driver.Render.ResetLineStipple = r200ResetLineStipple;
706 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_RASTER, GL_FALSE );
707 if (rmesa->TclFallback) {
708 /* These are already done if rmesa->TclFallback goes to
709 * zero above. But not if it doesn't (R200_NO_TCL for
710 * example?)
711 */
712 r200ChooseVertexState( ctx );
713 r200ChooseRenderState( ctx );
714 }
715 if (R200_DEBUG & DEBUG_FALLBACKS) {
716 fprintf(stderr, "R200 end rasterization fallback: 0x%x %s\n",
717 bit, getFallbackString(bit));
718 }
719 }
720 }
721 }
722
723
724
725
726 /**
727 * Cope with depth operations by drawing individual pixels as points.
728 *
729 * \todo
730 * The way the vertex state is set in this routine is hokey. It seems to
731 * work, but it's very hackish. This whole routine is pretty hackish. If
732 * the bitmap is small enough, it seems like it would be faster to copy it
733 * to AGP memory and use it as a non-power-of-two texture (i.e.,
734 * NV_texture_rectangle).
735 */
736 void
737 r200PointsBitmap( GLcontext *ctx, GLint px, GLint py,
738 GLsizei width, GLsizei height,
739 const struct gl_pixelstore_attrib *unpack,
740 const GLubyte *bitmap )
741 {
742 r200ContextPtr rmesa = R200_CONTEXT(ctx);
743 const GLfloat *rc = ctx->Current.RasterColor;
744 GLint row, col;
745 r200Vertex vert;
746 GLuint orig_vte;
747 GLuint h;
748
749
750 /* Turn off tcl.
751 */
752 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_BITMAP, 1 );
753
754 /* Choose tiny vertex format
755 */
756 {
757 const GLuint fmt_0 = R200_VTX_XY | R200_VTX_Z0 | R200_VTX_W0
758 | (R200_VTX_PK_RGBA << R200_VTX_COLOR_0_SHIFT);
759 const GLuint fmt_1 = 0;
760 GLuint vte = rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL];
761 GLuint vap = rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL];
762
763 vte &= ~(R200_VTX_XY_FMT | R200_VTX_Z_FMT);
764 vte |= R200_VTX_W0_FMT;
765 vap &= ~R200_VAP_FORCE_W_TO_ONE;
766
767 rmesa->swtcl.vertex_size = 5;
768
769 if ( (rmesa->hw.vtx.cmd[VTX_VTXFMT_0] != fmt_0)
770 || (rmesa->hw.vtx.cmd[VTX_VTXFMT_1] != fmt_1) ) {
771 R200_NEWPRIM(rmesa);
772 R200_STATECHANGE( rmesa, vtx );
773 rmesa->hw.vtx.cmd[VTX_VTXFMT_0] = fmt_0;
774 rmesa->hw.vtx.cmd[VTX_VTXFMT_1] = fmt_1;
775 }
776
777 if (vte != rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL]) {
778 R200_STATECHANGE( rmesa, vte );
779 rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL] = vte;
780 }
781
782 if (vap != rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL]) {
783 R200_STATECHANGE( rmesa, vap );
784 rmesa->hw.vap.cmd[VAP_SE_VAP_CNTL] = vap;
785 }
786 }
787
788 /* Ready for point primitives:
789 */
790 r200RenderPrimitive( ctx, GL_POINTS );
791
792 /* Turn off the hw viewport transformation:
793 */
794 R200_STATECHANGE( rmesa, vte );
795 orig_vte = rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL];
796 rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL] &= ~(R200_VPORT_X_SCALE_ENA |
797 R200_VPORT_Y_SCALE_ENA |
798 R200_VPORT_Z_SCALE_ENA |
799 R200_VPORT_X_OFFSET_ENA |
800 R200_VPORT_Y_OFFSET_ENA |
801 R200_VPORT_Z_OFFSET_ENA);
802
803 /* Turn off other stuff: Stipple?, texture?, blending?, etc.
804 */
805
806
807 /* Populate the vertex
808 *
809 * Incorporate FOG into RGBA
810 */
811 if (ctx->Fog.Enabled) {
812 const GLfloat *fc = ctx->Fog.Color;
813 GLfloat color[4];
814 GLfloat f;
815
816 if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT)
817 f = _swrast_z_to_fogfactor(ctx, ctx->Current.Attrib[VERT_ATTRIB_FOG][0]);
818 else
819 f = _swrast_z_to_fogfactor(ctx, ctx->Current.RasterDistance);
820
821 color[0] = f * rc[0] + (1.F - f) * fc[0];
822 color[1] = f * rc[1] + (1.F - f) * fc[1];
823 color[2] = f * rc[2] + (1.F - f) * fc[2];
824 color[3] = rc[3];
825
826 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.red, color[0]);
827 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.green, color[1]);
828 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.blue, color[2]);
829 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.alpha, color[3]);
830 }
831 else {
832 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.red, rc[0]);
833 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.green, rc[1]);
834 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.blue, rc[2]);
835 UNCLAMPED_FLOAT_TO_CHAN(vert.tv.color.alpha, rc[3]);
836 }
837
838
839 vert.tv.z = ctx->Current.RasterPos[2];
840
841
842 /* Update window height
843 */
844 LOCK_HARDWARE( rmesa );
845 UNLOCK_HARDWARE( rmesa );
846 h = rmesa->dri.drawable->h + rmesa->dri.drawable->y;
847 px += rmesa->dri.drawable->x;
848
849 /* Clipping handled by existing mechansims in r200_ioctl.c?
850 */
851 for (row=0; row<height; row++) {
852 const GLubyte *src = (const GLubyte *)
853 _mesa_image_address2d(unpack, bitmap, width, height,
854 GL_COLOR_INDEX, GL_BITMAP, row, 0 );
855
856 if (unpack->LsbFirst) {
857 /* Lsb first */
858 GLubyte mask = 1U << (unpack->SkipPixels & 0x7);
859 for (col=0; col<width; col++) {
860 if (*src & mask) {
861 vert.tv.x = px+col;
862 vert.tv.y = h - (py+row) - 1;
863 r200_point( rmesa, &vert );
864 }
865 src += (mask >> 7);
866 mask = ((mask << 1) & 0xff) | (mask >> 7);
867 }
868
869 /* get ready for next row */
870 if (mask != 1)
871 src++;
872 }
873 else {
874 /* Msb first */
875 GLubyte mask = 128U >> (unpack->SkipPixels & 0x7);
876 for (col=0; col<width; col++) {
877 if (*src & mask) {
878 vert.tv.x = px+col;
879 vert.tv.y = h - (py+row) - 1;
880 r200_point( rmesa, &vert );
881 }
882 src += mask & 1;
883 mask = ((mask << 7) & 0xff) | (mask >> 1);
884 }
885 /* get ready for next row */
886 if (mask != 128)
887 src++;
888 }
889 }
890
891 /* Fire outstanding vertices, restore state
892 */
893 R200_STATECHANGE( rmesa, vte );
894 rmesa->hw.vte.cmd[VTE_SE_VTE_CNTL] = orig_vte;
895
896 /* Unfallback
897 */
898 TCL_FALLBACK( ctx, R200_TCL_FALLBACK_BITMAP, 0 );
899
900 /* Need to restore vertexformat?
901 */
902 if (rmesa->TclFallback)
903 r200ChooseVertexState( ctx );
904 }
905
906
907 void r200FlushVertices( GLcontext *ctx, GLuint flags )
908 {
909 _tnl_FlushVertices( ctx, flags );
910
911 if (flags & FLUSH_STORED_VERTICES)
912 R200_NEWPRIM( R200_CONTEXT( ctx ) );
913 }
914
915 /**********************************************************************/
916 /* Initialization. */
917 /**********************************************************************/
918
919 void r200InitSwtcl( GLcontext *ctx )
920 {
921 TNLcontext *tnl = TNL_CONTEXT(ctx);
922 r200ContextPtr rmesa = R200_CONTEXT(ctx);
923 static int firsttime = 1;
924
925 if (firsttime) {
926 init_rast_tab();
927 firsttime = 0;
928 }
929
930 tnl->Driver.Render.Start = r200RenderStart;
931 tnl->Driver.Render.Finish = r200RenderFinish;
932 tnl->Driver.Render.PrimitiveNotify = r200RenderPrimitive;
933 tnl->Driver.Render.ResetLineStipple = r200ResetLineStipple;
934 tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
935 tnl->Driver.Render.CopyPV = _tnl_copy_pv;
936 tnl->Driver.Render.Interp = _tnl_interp;
937
938 /* FIXME: what are these numbers? */
939 _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12,
940 36 * sizeof(GLfloat) );
941
942 rmesa->swtcl.verts = (GLubyte *)tnl->clipspace.vertex_buf;
943 rmesa->swtcl.RenderIndex = ~0;
944 rmesa->swtcl.render_primitive = GL_TRIANGLES;
945 rmesa->swtcl.hw_primitive = 0;
946 }
947
948
949 void r200DestroySwtcl( GLcontext *ctx )
950 {
951 r200ContextPtr rmesa = R200_CONTEXT(ctx);
952
953 if (rmesa->swtcl.indexed_verts.buf)
954 r200ReleaseDmaRegion( rmesa, &rmesa->swtcl.indexed_verts, __FUNCTION__ );
955 }