1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /** @file intel_tris.c
29 *
30 * This file contains functions for managing the vertex buffer and emitting
31 * primitives into it.
32 */
33
34 #include "main/glheader.h"
35 #include "main/context.h"
36 #include "main/macros.h"
37 #include "main/enums.h"
38 #include "main/texobj.h"
39 #include "main/state.h"
40 #include "main/dd.h"
41 #include "main/fbobject.h"
42 #include "main/state.h"
43
44 #include "swrast/swrast.h"
45 #include "swrast_setup/swrast_setup.h"
46 #include "tnl/t_context.h"
47 #include "tnl/t_pipeline.h"
48 #include "tnl/t_vertex.h"
49
50 #include "intel_screen.h"
51 #include "intel_context.h"
52 #include "intel_tris.h"
53 #include "intel_batchbuffer.h"
54 #include "intel_buffers.h"
55 #include "intel_reg.h"
56 #include "i830_context.h"
57 #include "i830_reg.h"
58 #include "i915_context.h"
59
60 static void intelRenderPrimitive(struct gl_context * ctx, GLenum prim);
61 static void intelRasterPrimitive(struct gl_context * ctx, GLenum rprim,
62 GLuint hwprim);
63
64 static void
intel_flush_inline_primitive(struct intel_context * intel)65 intel_flush_inline_primitive(struct intel_context *intel)
66 {
67 GLuint used = intel->batch.used - intel->prim.start_ptr;
68
69 assert(intel->prim.primitive != ~0);
70
71 /* printf("/\n"); */
72
73 if (used < 2)
74 goto do_discard;
75
76 intel->batch.map[intel->prim.start_ptr] =
77 _3DPRIMITIVE | intel->prim.primitive | (used - 2);
78
79 goto finished;
80
81 do_discard:
82 intel->batch.used = intel->prim.start_ptr;
83
84 finished:
85 intel->prim.primitive = ~0;
86 intel->prim.start_ptr = 0;
87 intel->prim.flush = 0;
88 }
89
intel_start_inline(struct intel_context * intel,uint32_t prim)90 static void intel_start_inline(struct intel_context *intel, uint32_t prim)
91 {
92 BATCH_LOCALS;
93
94 intel->vtbl.emit_state(intel);
95
96 intel->no_batch_wrap = true;
97
98 /* Emit a slot which will be filled with the inline primitive
99 * command later.
100 */
101 BEGIN_BATCH(1);
102
103 intel->prim.start_ptr = intel->batch.used;
104 intel->prim.primitive = prim;
105 intel->prim.flush = intel_flush_inline_primitive;
106
107 OUT_BATCH(0);
108 ADVANCE_BATCH();
109
110 intel->no_batch_wrap = false;
111 /* printf(">"); */
112 }
113
intel_wrap_inline(struct intel_context * intel)114 static void intel_wrap_inline(struct intel_context *intel)
115 {
116 GLuint prim = intel->prim.primitive;
117
118 intel_flush_inline_primitive(intel);
119 intel_batchbuffer_flush(intel);
120 intel_start_inline(intel, prim); /* ??? */
121 }
122
intel_extend_inline(struct intel_context * intel,GLuint dwords)123 static GLuint *intel_extend_inline(struct intel_context *intel, GLuint dwords)
124 {
125 GLuint *ptr;
126
127 assert(intel->prim.flush == intel_flush_inline_primitive);
128
129 if (intel_batchbuffer_space(intel) < dwords * sizeof(GLuint))
130 intel_wrap_inline(intel);
131
132 /* printf("."); */
133
134 intel->vtbl.assert_not_dirty(intel);
135
136 ptr = intel->batch.map + intel->batch.used;
137 intel->batch.used += dwords;
138
139 return ptr;
140 }
141
142 /** Sets the primitive type for a primitive sequence, flushing as needed. */
intel_set_prim(struct intel_context * intel,uint32_t prim)143 void intel_set_prim(struct intel_context *intel, uint32_t prim)
144 {
145 /* if we have no VBOs */
146
147 if (intel->intelScreen->no_vbo) {
148 intel_start_inline(intel, prim);
149 return;
150 }
151 if (prim != intel->prim.primitive) {
152 INTEL_FIREVERTICES(intel);
153 intel->prim.primitive = prim;
154 }
155 }
156
157 /** Returns mapped VB space for the given number of vertices */
intel_get_prim_space(struct intel_context * intel,unsigned int count)158 uint32_t *intel_get_prim_space(struct intel_context *intel, unsigned int count)
159 {
160 uint32_t *addr;
161
162 if (intel->intelScreen->no_vbo) {
163 return intel_extend_inline(intel, count * intel->vertex_size);
164 }
165
166 /* Check for space in the existing VB */
167 if (intel->prim.vb_bo == NULL ||
168 (intel->prim.current_offset +
169 count * intel->vertex_size * 4) > INTEL_VB_SIZE ||
170 (intel->prim.count + count) >= (1 << 16)) {
171 /* Flush existing prim if any */
172 INTEL_FIREVERTICES(intel);
173
174 intel_finish_vb(intel);
175
176 /* Start a new VB */
177 if (intel->prim.vb == NULL)
178 intel->prim.vb = malloc(INTEL_VB_SIZE);
179 intel->prim.vb_bo = drm_intel_bo_alloc(intel->bufmgr, "vb",
180 INTEL_VB_SIZE, 4);
181 intel->prim.start_offset = 0;
182 intel->prim.current_offset = 0;
183 }
184
185 intel->prim.flush = intel_flush_prim;
186
187 addr = (uint32_t *)(intel->prim.vb + intel->prim.current_offset);
188 intel->prim.current_offset += intel->vertex_size * 4 * count;
189 intel->prim.count += count;
190
191 return addr;
192 }
193
194 /** Dispatches the accumulated primitive to the batchbuffer. */
intel_flush_prim(struct intel_context * intel)195 void intel_flush_prim(struct intel_context *intel)
196 {
197 drm_intel_bo *aper_array[2];
198 drm_intel_bo *vb_bo;
199 unsigned int offset, count;
200 BATCH_LOCALS;
201
202 /* Must be called after an intel_start_prim. */
203 assert(intel->prim.primitive != ~0);
204
205 if (intel->prim.count == 0)
206 return;
207
208 /* Clear the current prims out of the context state so that a batch flush
209 * flush triggered by emit_state doesn't loop back to flush_prim again.
210 */
211 vb_bo = intel->prim.vb_bo;
212 drm_intel_bo_reference(vb_bo);
213 count = intel->prim.count;
214 intel->prim.count = 0;
215 offset = intel->prim.start_offset;
216 intel->prim.start_offset = intel->prim.current_offset;
217 if (intel->gen < 3)
218 intel->prim.current_offset = intel->prim.start_offset = ALIGN(intel->prim.start_offset, 128);
219 intel->prim.flush = NULL;
220
221 intel->vtbl.emit_state(intel);
222
223 aper_array[0] = intel->batch.bo;
224 aper_array[1] = vb_bo;
225 if (dri_bufmgr_check_aperture_space(aper_array, 2)) {
226 intel_batchbuffer_flush(intel);
227 intel->vtbl.emit_state(intel);
228 }
229
230 /* Ensure that we don't start a new batch for the following emit, which
231 * depends on the state just emitted. emit_state should be making sure we
232 * have the space for this.
233 */
234 intel->no_batch_wrap = true;
235
236 if (intel->always_flush_cache) {
237 intel_batchbuffer_emit_mi_flush(intel);
238 }
239
240 #if 0
241 printf("emitting %d..%d=%d vertices size %d\n", offset,
242 intel->prim.current_offset, count,
243 intel->vertex_size * 4);
244 #endif
245
246 if (intel->gen >= 3) {
247 struct i915_context *i915 = i915_context(&intel->ctx);
248 unsigned int cmd = 0, len = 0;
249
250 if (vb_bo != i915->current_vb_bo) {
251 cmd |= I1_LOAD_S(0);
252 len++;
253 }
254
255 if (intel->vertex_size != i915->current_vertex_size) {
256 cmd |= I1_LOAD_S(1);
257 len++;
258 }
259 if (len)
260 len++;
261
262 BEGIN_BATCH(2+len);
263 if (cmd)
264 OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | cmd | (len - 2));
265 if (vb_bo != i915->current_vb_bo) {
266 OUT_RELOC(vb_bo, I915_GEM_DOMAIN_VERTEX, 0, 0);
267 i915->current_vb_bo = vb_bo;
268 }
269 if (intel->vertex_size != i915->current_vertex_size) {
270 OUT_BATCH((intel->vertex_size << S1_VERTEX_WIDTH_SHIFT) |
271 (intel->vertex_size << S1_VERTEX_PITCH_SHIFT));
272 i915->current_vertex_size = intel->vertex_size;
273 }
274 OUT_BATCH(_3DPRIMITIVE |
275 PRIM_INDIRECT |
276 PRIM_INDIRECT_SEQUENTIAL |
277 intel->prim.primitive |
278 count);
279 OUT_BATCH(offset / (intel->vertex_size * 4));
280 ADVANCE_BATCH();
281 } else {
282 struct i830_context *i830 = i830_context(&intel->ctx);
283
284 BEGIN_BATCH(5);
285 OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 |
286 I1_LOAD_S(0) | I1_LOAD_S(2) | 1);
287 /* S0 */
288 assert((offset & ~S0_VB_OFFSET_MASK_830) == 0);
289 OUT_RELOC(vb_bo, I915_GEM_DOMAIN_VERTEX, 0,
290 offset | (intel->vertex_size << S0_VB_PITCH_SHIFT_830) |
291 S0_VB_ENABLE_830);
292 /* S2
293 * This is somewhat unfortunate -- VB width is tied up with
294 * vertex format data that we've already uploaded through
295 * _3DSTATE_VFT[01]_CMD. We may want to replace emits of VFT state with
296 * STATE_IMMEDIATE_1 like this to avoid duplication.
297 */
298 OUT_BATCH((i830->state.Ctx[I830_CTXREG_VF] & VFT0_TEX_COUNT_MASK) >>
299 VFT0_TEX_COUNT_SHIFT << S2_TEX_COUNT_SHIFT_830 |
300 (i830->state.Ctx[I830_CTXREG_VF2] << 16) |
301 intel->vertex_size << S2_VERTEX_0_WIDTH_SHIFT_830);
302
303 OUT_BATCH(_3DPRIMITIVE |
304 PRIM_INDIRECT |
305 PRIM_INDIRECT_SEQUENTIAL |
306 intel->prim.primitive |
307 count);
308 OUT_BATCH(0); /* Beginning vertex index */
309 ADVANCE_BATCH();
310 }
311
312 if (intel->always_flush_cache) {
313 intel_batchbuffer_emit_mi_flush(intel);
314 }
315
316 intel->no_batch_wrap = false;
317
318 drm_intel_bo_unreference(vb_bo);
319 }
320
321 /**
322 * Uploads the locally-accumulated VB into the buffer object.
323 *
324 * This avoids us thrashing the cachelines in and out as the buffer gets
325 * filled, dispatched, then reused as the hardware completes rendering from it,
326 * and also lets us clflush less if we dispatch with a partially-filled VB.
327 *
328 * This is called normally from get_space when we're finishing a BO, but also
329 * at batch flush time so that we don't try accessing the contents of a
330 * just-dispatched buffer.
331 */
intel_finish_vb(struct intel_context * intel)332 void intel_finish_vb(struct intel_context *intel)
333 {
334 if (intel->prim.vb_bo == NULL)
335 return;
336
337 drm_intel_bo_subdata(intel->prim.vb_bo, 0, intel->prim.start_offset,
338 intel->prim.vb);
339 drm_intel_bo_unreference(intel->prim.vb_bo);
340 intel->prim.vb_bo = NULL;
341 }
342
343 /***********************************************************************
344 * Emit primitives as inline vertices *
345 ***********************************************************************/
346
347 #ifdef __i386__
348 #define COPY_DWORDS( j, vb, vertsize, v ) \
349 do { \
350 int __tmp; \
351 __asm__ __volatile__( "rep ; movsl" \
352 : "=%c" (j), "=D" (vb), "=S" (__tmp) \
353 : "0" (vertsize), \
354 "D" ((long)vb), \
355 "S" ((long)v) ); \
356 } while (0)
357 #else
358 #define COPY_DWORDS( j, vb, vertsize, v ) \
359 do { \
360 for ( j = 0 ; j < vertsize ; j++ ) { \
361 vb[j] = ((GLuint *)v)[j]; \
362 } \
363 vb += vertsize; \
364 } while (0)
365 #endif
366
367 static void
intel_draw_quad(struct intel_context * intel,intelVertexPtr v0,intelVertexPtr v1,intelVertexPtr v2,intelVertexPtr v3)368 intel_draw_quad(struct intel_context *intel,
369 intelVertexPtr v0,
370 intelVertexPtr v1, intelVertexPtr v2, intelVertexPtr v3)
371 {
372 GLuint vertsize = intel->vertex_size;
373 GLuint *vb = intel_get_prim_space(intel, 6);
374 int j;
375
376 COPY_DWORDS(j, vb, vertsize, v0);
377 COPY_DWORDS(j, vb, vertsize, v1);
378
379 /* If smooth shading, draw like a trifan which gives better
380 * rasterization. Otherwise draw as two triangles with provoking
381 * vertex in third position as required for flat shading.
382 */
383 if (intel->ctx.Light.ShadeModel == GL_FLAT) {
384 COPY_DWORDS(j, vb, vertsize, v3);
385 COPY_DWORDS(j, vb, vertsize, v1);
386 }
387 else {
388 COPY_DWORDS(j, vb, vertsize, v2);
389 COPY_DWORDS(j, vb, vertsize, v0);
390 }
391
392 COPY_DWORDS(j, vb, vertsize, v2);
393 COPY_DWORDS(j, vb, vertsize, v3);
394 }
395
396 static void
intel_draw_triangle(struct intel_context * intel,intelVertexPtr v0,intelVertexPtr v1,intelVertexPtr v2)397 intel_draw_triangle(struct intel_context *intel,
398 intelVertexPtr v0, intelVertexPtr v1, intelVertexPtr v2)
399 {
400 GLuint vertsize = intel->vertex_size;
401 GLuint *vb = intel_get_prim_space(intel, 3);
402 int j;
403
404 COPY_DWORDS(j, vb, vertsize, v0);
405 COPY_DWORDS(j, vb, vertsize, v1);
406 COPY_DWORDS(j, vb, vertsize, v2);
407 }
408
409
410 static void
intel_draw_line(struct intel_context * intel,intelVertexPtr v0,intelVertexPtr v1)411 intel_draw_line(struct intel_context *intel,
412 intelVertexPtr v0, intelVertexPtr v1)
413 {
414 GLuint vertsize = intel->vertex_size;
415 GLuint *vb = intel_get_prim_space(intel, 2);
416 int j;
417
418 COPY_DWORDS(j, vb, vertsize, v0);
419 COPY_DWORDS(j, vb, vertsize, v1);
420 }
421
422
423 static void
intel_draw_point(struct intel_context * intel,intelVertexPtr v0)424 intel_draw_point(struct intel_context *intel, intelVertexPtr v0)
425 {
426 GLuint vertsize = intel->vertex_size;
427 GLuint *vb = intel_get_prim_space(intel, 1);
428 int j;
429
430 COPY_DWORDS(j, vb, vertsize, v0);
431 }
432
433
434
435 /***********************************************************************
436 * Fixup for ARB_point_parameters *
437 ***********************************************************************/
438
439 /* Currently not working - VERT_ATTRIB_POINTSIZE isn't correctly
440 * represented in the fragment program info.inputs_read field.
441 */
442 static void
intel_atten_point(struct intel_context * intel,intelVertexPtr v0)443 intel_atten_point(struct intel_context *intel, intelVertexPtr v0)
444 {
445 struct gl_context *ctx = &intel->ctx;
446 GLfloat psz[4], col[4], restore_psz, restore_alpha;
447
448 _tnl_get_attr(ctx, v0, _TNL_ATTRIB_POINTSIZE, psz);
449 _tnl_get_attr(ctx, v0, _TNL_ATTRIB_COLOR0, col);
450
451 restore_psz = psz[0];
452 restore_alpha = col[3];
453
454 if (psz[0] >= ctx->Point.Threshold) {
455 psz[0] = MIN2(psz[0], ctx->Point.MaxSize);
456 }
457 else {
458 GLfloat dsize = psz[0] / ctx->Point.Threshold;
459 psz[0] = MAX2(ctx->Point.Threshold, ctx->Point.MinSize);
460 col[3] *= dsize * dsize;
461 }
462
463 if (psz[0] < 1.0)
464 psz[0] = 1.0;
465
466 if (restore_psz != psz[0] || restore_alpha != col[3]) {
467 _tnl_set_attr(ctx, v0, _TNL_ATTRIB_POINTSIZE, psz);
468 _tnl_set_attr(ctx, v0, _TNL_ATTRIB_COLOR0, col);
469
470 intel_draw_point(intel, v0);
471
472 psz[0] = restore_psz;
473 col[3] = restore_alpha;
474
475 _tnl_set_attr(ctx, v0, _TNL_ATTRIB_POINTSIZE, psz);
476 _tnl_set_attr(ctx, v0, _TNL_ATTRIB_COLOR0, col);
477 }
478 else
479 intel_draw_point(intel, v0);
480 }
481
482
483
484
485
486 /***********************************************************************
487 * Fixup for I915 WPOS texture coordinate *
488 ***********************************************************************/
489
490 static void
intel_emit_fragcoord(struct intel_context * intel,intelVertexPtr v)491 intel_emit_fragcoord(struct intel_context *intel, intelVertexPtr v)
492 {
493 struct gl_context *ctx = &intel->ctx;
494 struct gl_framebuffer *fb = ctx->DrawBuffer;
495 GLuint offset = intel->wpos_offset;
496 float *vertex_position = (float *)v;
497 float *fragcoord = (float *)((char *)v + offset);
498
499 fragcoord[0] = vertex_position[0];
500
501 if (_mesa_is_user_fbo(fb))
502 fragcoord[1] = vertex_position[1];
503 else
504 fragcoord[1] = fb->Height - vertex_position[1];
505
506 fragcoord[2] = vertex_position[2];
507 fragcoord[3] = vertex_position[3];
508 }
509
510 static void
intel_wpos_triangle(struct intel_context * intel,intelVertexPtr v0,intelVertexPtr v1,intelVertexPtr v2)511 intel_wpos_triangle(struct intel_context *intel,
512 intelVertexPtr v0, intelVertexPtr v1, intelVertexPtr v2)
513 {
514 intel_emit_fragcoord(intel, v0);
515 intel_emit_fragcoord(intel, v1);
516 intel_emit_fragcoord(intel, v2);
517
518 intel_draw_triangle(intel, v0, v1, v2);
519 }
520
521
522 static void
intel_wpos_line(struct intel_context * intel,intelVertexPtr v0,intelVertexPtr v1)523 intel_wpos_line(struct intel_context *intel,
524 intelVertexPtr v0, intelVertexPtr v1)
525 {
526 intel_emit_fragcoord(intel, v0);
527 intel_emit_fragcoord(intel, v1);
528 intel_draw_line(intel, v0, v1);
529 }
530
531
532 static void
intel_wpos_point(struct intel_context * intel,intelVertexPtr v0)533 intel_wpos_point(struct intel_context *intel, intelVertexPtr v0)
534 {
535 intel_emit_fragcoord(intel, v0);
536 intel_draw_point(intel, v0);
537 }
538
539
540
541
542
543
544 /***********************************************************************
545 * Macros for t_dd_tritmp.h to draw basic primitives *
546 ***********************************************************************/
547
548 #define TRI( a, b, c ) \
549 do { \
550 if (DO_FALLBACK) \
551 intel->draw_tri( intel, a, b, c ); \
552 else \
553 intel_draw_triangle( intel, a, b, c ); \
554 } while (0)
555
556 #define QUAD( a, b, c, d ) \
557 do { \
558 if (DO_FALLBACK) { \
559 intel->draw_tri( intel, a, b, d ); \
560 intel->draw_tri( intel, b, c, d ); \
561 } else \
562 intel_draw_quad( intel, a, b, c, d ); \
563 } while (0)
564
565 #define LINE( v0, v1 ) \
566 do { \
567 if (DO_FALLBACK) \
568 intel->draw_line( intel, v0, v1 ); \
569 else \
570 intel_draw_line( intel, v0, v1 ); \
571 } while (0)
572
573 #define POINT( v0 ) \
574 do { \
575 if (DO_FALLBACK) \
576 intel->draw_point( intel, v0 ); \
577 else \
578 intel_draw_point( intel, v0 ); \
579 } while (0)
580
581
582 /***********************************************************************
583 * Build render functions from dd templates *
584 ***********************************************************************/
585
586 #define INTEL_OFFSET_BIT 0x01
587 #define INTEL_TWOSIDE_BIT 0x02
588 #define INTEL_UNFILLED_BIT 0x04
589 #define INTEL_FALLBACK_BIT 0x08
590 #define INTEL_MAX_TRIFUNC 0x10
591
592
593 static struct
594 {
595 tnl_points_func points;
596 tnl_line_func line;
597 tnl_triangle_func triangle;
598 tnl_quad_func quad;
599 } rast_tab[INTEL_MAX_TRIFUNC];
600
601
602 #define DO_FALLBACK ((IND & INTEL_FALLBACK_BIT) != 0)
603 #define DO_OFFSET ((IND & INTEL_OFFSET_BIT) != 0)
604 #define DO_UNFILLED ((IND & INTEL_UNFILLED_BIT) != 0)
605 #define DO_TWOSIDE ((IND & INTEL_TWOSIDE_BIT) != 0)
606 #define DO_FLAT 0
607 #define DO_TRI 1
608 #define DO_QUAD 1
609 #define DO_LINE 1
610 #define DO_POINTS 1
611 #define DO_FULL_QUAD 1
612
613 #define HAVE_SPEC 1
614 #define HAVE_BACK_COLORS 0
615 #define HAVE_HW_FLATSHADE 1
616 #define VERTEX intelVertex
617 #define TAB rast_tab
618
619 /* Only used to pull back colors into vertices (ie, we know color is
620 * floating point).
621 */
622 #define INTEL_COLOR( dst, src ) \
623 do { \
624 UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \
625 UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \
626 UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \
627 UNCLAMPED_FLOAT_TO_UBYTE((dst)[3], (src)[3]); \
628 } while (0)
629
630 #define INTEL_SPEC( dst, src ) \
631 do { \
632 UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \
633 UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \
634 UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \
635 } while (0)
636
637
638 #define DEPTH_SCALE (ctx->DrawBuffer->Visual.depthBits == 16 ? 1.0 : 2.0)
639 #define UNFILLED_TRI unfilled_tri
640 #define UNFILLED_QUAD unfilled_quad
641 #define VERT_X(_v) _v->v.x
642 #define VERT_Y(_v) _v->v.y
643 #define VERT_Z(_v) _v->v.z
644 #define AREA_IS_CCW( a ) (a > 0)
645 #define GET_VERTEX(e) (intel->verts + (e * intel->vertex_size * sizeof(GLuint)))
646
647 #define VERT_SET_RGBA( v, c ) if (coloroffset) INTEL_COLOR( v->ub4[coloroffset], c )
648 #define VERT_COPY_RGBA( v0, v1 ) if (coloroffset) v0->ui[coloroffset] = v1->ui[coloroffset]
649 #define VERT_SAVE_RGBA( idx ) if (coloroffset) color[idx] = v[idx]->ui[coloroffset]
650 #define VERT_RESTORE_RGBA( idx ) if (coloroffset) v[idx]->ui[coloroffset] = color[idx]
651
652 #define VERT_SET_SPEC( v, c ) if (specoffset) INTEL_SPEC( v->ub4[specoffset], c )
653 #define VERT_COPY_SPEC( v0, v1 ) if (specoffset) COPY_3V(v0->ub4[specoffset], v1->ub4[specoffset])
654 #define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset]
655 #define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
656
657 #define LOCAL_VARS(n) \
658 struct intel_context *intel = intel_context(ctx); \
659 GLuint color[n] = { 0, }, spec[n] = { 0, }; \
660 GLuint coloroffset = intel->coloroffset; \
661 GLuint specoffset = intel->specoffset; \
662 (void) color; (void) spec; (void) coloroffset; (void) specoffset;
663
664
665 /***********************************************************************
666 * Helpers for rendering unfilled primitives *
667 ***********************************************************************/
668
669 static const GLuint hw_prim[GL_POLYGON + 1] = {
670 [GL_POINTS] = PRIM3D_POINTLIST,
671 [GL_LINES] = PRIM3D_LINELIST,
672 [GL_LINE_LOOP] = PRIM3D_LINELIST,
673 [GL_LINE_STRIP] = PRIM3D_LINELIST,
674 [GL_TRIANGLES] = PRIM3D_TRILIST,
675 [GL_TRIANGLE_STRIP] = PRIM3D_TRILIST,
676 [GL_TRIANGLE_FAN] = PRIM3D_TRILIST,
677 [GL_QUADS] = PRIM3D_TRILIST,
678 [GL_QUAD_STRIP] = PRIM3D_TRILIST,
679 [GL_POLYGON] = PRIM3D_TRILIST,
680 };
681
682 #define RASTERIZE(x) intelRasterPrimitive( ctx, x, hw_prim[x] )
683 #define RENDER_PRIMITIVE intel->render_primitive
684 #define TAG(x) x
685 #define IND INTEL_FALLBACK_BIT
686 #include "tnl_dd/t_dd_unfilled.h"
687 #undef IND
688
689 /***********************************************************************
690 * Generate GL render functions *
691 ***********************************************************************/
692
693 #define IND (0)
694 #define TAG(x) x
695 #include "tnl_dd/t_dd_tritmp.h"
696
697 #define IND (INTEL_OFFSET_BIT)
698 #define TAG(x) x##_offset
699 #include "tnl_dd/t_dd_tritmp.h"
700
701 #define IND (INTEL_TWOSIDE_BIT)
702 #define TAG(x) x##_twoside
703 #include "tnl_dd/t_dd_tritmp.h"
704
705 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT)
706 #define TAG(x) x##_twoside_offset
707 #include "tnl_dd/t_dd_tritmp.h"
708
709 #define IND (INTEL_UNFILLED_BIT)
710 #define TAG(x) x##_unfilled
711 #include "tnl_dd/t_dd_tritmp.h"
712
713 #define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
714 #define TAG(x) x##_offset_unfilled
715 #include "tnl_dd/t_dd_tritmp.h"
716
717 #define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT)
718 #define TAG(x) x##_twoside_unfilled
719 #include "tnl_dd/t_dd_tritmp.h"
720
721 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
722 #define TAG(x) x##_twoside_offset_unfilled
723 #include "tnl_dd/t_dd_tritmp.h"
724
725 #define IND (INTEL_FALLBACK_BIT)
726 #define TAG(x) x##_fallback
727 #include "tnl_dd/t_dd_tritmp.h"
728
729 #define IND (INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
730 #define TAG(x) x##_offset_fallback
731 #include "tnl_dd/t_dd_tritmp.h"
732
733 #define IND (INTEL_TWOSIDE_BIT|INTEL_FALLBACK_BIT)
734 #define TAG(x) x##_twoside_fallback
735 #include "tnl_dd/t_dd_tritmp.h"
736
737 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
738 #define TAG(x) x##_twoside_offset_fallback
739 #include "tnl_dd/t_dd_tritmp.h"
740
741 #define IND (INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
742 #define TAG(x) x##_unfilled_fallback
743 #include "tnl_dd/t_dd_tritmp.h"
744
745 #define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
746 #define TAG(x) x##_offset_unfilled_fallback
747 #include "tnl_dd/t_dd_tritmp.h"
748
749 #define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
750 #define TAG(x) x##_twoside_unfilled_fallback
751 #include "tnl_dd/t_dd_tritmp.h"
752
753 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT| \
754 INTEL_FALLBACK_BIT)
755 #define TAG(x) x##_twoside_offset_unfilled_fallback
756 #include "tnl_dd/t_dd_tritmp.h"
757
758
759 static void
init_rast_tab(void)760 init_rast_tab(void)
761 {
762 init();
763 init_offset();
764 init_twoside();
765 init_twoside_offset();
766 init_unfilled();
767 init_offset_unfilled();
768 init_twoside_unfilled();
769 init_twoside_offset_unfilled();
770 init_fallback();
771 init_offset_fallback();
772 init_twoside_fallback();
773 init_twoside_offset_fallback();
774 init_unfilled_fallback();
775 init_offset_unfilled_fallback();
776 init_twoside_unfilled_fallback();
777 init_twoside_offset_unfilled_fallback();
778 }
779
780
781 /***********************************************************************
782 * Rasterization fallback helpers *
783 ***********************************************************************/
784
785
786 /* This code is hit only when a mix of accelerated and unaccelerated
787 * primitives are being drawn, and only for the unaccelerated
788 * primitives.
789 */
790 static void
intel_fallback_tri(struct intel_context * intel,intelVertex * v0,intelVertex * v1,intelVertex * v2)791 intel_fallback_tri(struct intel_context *intel,
792 intelVertex * v0, intelVertex * v1, intelVertex * v2)
793 {
794 struct gl_context *ctx = &intel->ctx;
795 SWvertex v[3];
796
797 if (0)
798 fprintf(stderr, "\n%s\n", __func__);
799
800 INTEL_FIREVERTICES(intel);
801
802 _swsetup_Translate(ctx, v0, &v[0]);
803 _swsetup_Translate(ctx, v1, &v[1]);
804 _swsetup_Translate(ctx, v2, &v[2]);
805 _swrast_render_start(ctx);
806 _swrast_Triangle(ctx, &v[0], &v[1], &v[2]);
807 _swrast_render_finish(ctx);
808 }
809
810
811 static void
intel_fallback_line(struct intel_context * intel,intelVertex * v0,intelVertex * v1)812 intel_fallback_line(struct intel_context *intel,
813 intelVertex * v0, intelVertex * v1)
814 {
815 struct gl_context *ctx = &intel->ctx;
816 SWvertex v[2];
817
818 if (0)
819 fprintf(stderr, "\n%s\n", __func__);
820
821 INTEL_FIREVERTICES(intel);
822
823 _swsetup_Translate(ctx, v0, &v[0]);
824 _swsetup_Translate(ctx, v1, &v[1]);
825 _swrast_render_start(ctx);
826 _swrast_Line(ctx, &v[0], &v[1]);
827 _swrast_render_finish(ctx);
828 }
829
830 static void
intel_fallback_point(struct intel_context * intel,intelVertex * v0)831 intel_fallback_point(struct intel_context *intel,
832 intelVertex * v0)
833 {
834 struct gl_context *ctx = &intel->ctx;
835 SWvertex v[1];
836
837 if (0)
838 fprintf(stderr, "\n%s\n", __func__);
839
840 INTEL_FIREVERTICES(intel);
841
842 _swsetup_Translate(ctx, v0, &v[0]);
843 _swrast_render_start(ctx);
844 _swrast_Point(ctx, &v[0]);
845 _swrast_render_finish(ctx);
846 }
847
848
849 /**********************************************************************/
850 /* Render unclipped begin/end objects */
851 /**********************************************************************/
852
853 #define IND 0
854 #define V(x) (intelVertex *)(vertptr + ((x)*vertsize*sizeof(GLuint)))
855 #define RENDER_POINTS( start, count ) \
856 for ( ; start < count ; start++) POINT( V(ELT(start)) );
857 #define RENDER_LINE( v0, v1 ) LINE( V(v0), V(v1) )
858 #define RENDER_TRI( v0, v1, v2 ) TRI( V(v0), V(v1), V(v2) )
859 #define RENDER_QUAD( v0, v1, v2, v3 ) QUAD( V(v0), V(v1), V(v2), V(v3) )
860 #define INIT(x) intelRenderPrimitive( ctx, x )
861 #undef LOCAL_VARS
862 #define LOCAL_VARS \
863 struct intel_context *intel = intel_context(ctx); \
864 GLubyte *vertptr = (GLubyte *)intel->verts; \
865 const GLuint vertsize = intel->vertex_size; \
866 const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
867 (void) elt;
868 #define RESET_STIPPLE
869 #define RESET_OCCLUSION
870 #define PRESERVE_VB_DEFS
871 #define ELT(x) x
872 #define TAG(x) intel_##x##_verts
873 #include "tnl/t_vb_rendertmp.h"
874 #undef ELT
875 #undef TAG
876 #define TAG(x) intel_##x##_elts
877 #define ELT(x) elt[x]
878 #include "tnl/t_vb_rendertmp.h"
879
880 /**********************************************************************/
881 /* Render clipped primitives */
882 /**********************************************************************/
883
884
885
886 static void
intelRenderClippedPoly(struct gl_context * ctx,const GLuint * elts,GLuint n)887 intelRenderClippedPoly(struct gl_context * ctx, const GLuint * elts, GLuint n)
888 {
889 struct intel_context *intel = intel_context(ctx);
890 TNLcontext *tnl = TNL_CONTEXT(ctx);
891 GLuint prim = intel->render_primitive;
892
893 /* Render the new vertices as an unclipped polygon.
894 */
895 _tnl_RenderClippedPolygon(ctx, elts, n);
896
897 /* Restore the render primitive
898 */
899 if (prim != GL_POLYGON)
900 tnl->Driver.Render.PrimitiveNotify(ctx, prim);
901 }
902
903 static void
intelFastRenderClippedPoly(struct gl_context * ctx,const GLuint * elts,GLuint n)904 intelFastRenderClippedPoly(struct gl_context * ctx, const GLuint * elts, GLuint n)
905 {
906 struct intel_context *intel = intel_context(ctx);
907 const GLuint vertsize = intel->vertex_size;
908 GLuint *vb = intel_get_prim_space(intel, (n - 2) * 3);
909 GLubyte *vertptr = (GLubyte *) intel->verts;
910 const GLuint *start = (const GLuint *) V(elts[0]);
911 int i, j;
912
913 if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION) {
914 for (i = 2; i < n; i++) {
915 COPY_DWORDS(j, vb, vertsize, V(elts[i - 1]));
916 COPY_DWORDS(j, vb, vertsize, V(elts[i]));
917 COPY_DWORDS(j, vb, vertsize, start);
918 }
919 } else {
920 for (i = 2; i < n; i++) {
921 COPY_DWORDS(j, vb, vertsize, start);
922 COPY_DWORDS(j, vb, vertsize, V(elts[i - 1]));
923 COPY_DWORDS(j, vb, vertsize, V(elts[i]));
924 }
925 }
926 }
927
928 /**********************************************************************/
929 /* Choose render functions */
930 /**********************************************************************/
931
932
933 #define DD_TRI_LIGHT_TWOSIDE (1 << 1)
934 #define DD_TRI_UNFILLED (1 << 2)
935 #define DD_TRI_STIPPLE (1 << 4)
936 #define DD_TRI_OFFSET (1 << 5)
937 #define DD_LINE_STIPPLE (1 << 7)
938 #define DD_POINT_ATTEN (1 << 9)
939
940 #define ANY_FALLBACK_FLAGS (DD_LINE_STIPPLE | DD_TRI_STIPPLE | DD_POINT_ATTEN)
941 #define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE | DD_TRI_OFFSET | DD_TRI_UNFILLED)
942
943 void
intelChooseRenderState(struct gl_context * ctx)944 intelChooseRenderState(struct gl_context * ctx)
945 {
946 TNLcontext *tnl = TNL_CONTEXT(ctx);
947 struct intel_context *intel = intel_context(ctx);
948 GLuint flags =
949 ((ctx->Light.Enabled &&
950 ctx->Light.Model.TwoSide) ? DD_TRI_LIGHT_TWOSIDE : 0) |
951 ((ctx->Polygon.FrontMode != GL_FILL ||
952 ctx->Polygon.BackMode != GL_FILL) ? DD_TRI_UNFILLED : 0) |
953 (ctx->Polygon.StippleFlag ? DD_TRI_STIPPLE : 0) |
954 ((ctx->Polygon.OffsetPoint ||
955 ctx->Polygon.OffsetLine ||
956 ctx->Polygon.OffsetFill) ? DD_TRI_OFFSET : 0) |
957 (ctx->Line.StippleFlag ? DD_LINE_STIPPLE : 0) |
958 (ctx->Point._Attenuated ? DD_POINT_ATTEN : 0);
959 const struct gl_program *fprog = ctx->FragmentProgram._Current;
960 bool have_wpos = (fprog && (fprog->info.inputs_read & VARYING_BIT_POS));
961 GLuint index = 0;
962
963 if (INTEL_DEBUG & DEBUG_STATE)
964 fprintf(stderr, "\n%s\n", __func__);
965
966 if ((flags & (ANY_FALLBACK_FLAGS | ANY_RASTER_FLAGS)) || have_wpos) {
967
968 if (flags & ANY_RASTER_FLAGS) {
969 if (flags & DD_TRI_LIGHT_TWOSIDE)
970 index |= INTEL_TWOSIDE_BIT;
971 if (flags & DD_TRI_OFFSET)
972 index |= INTEL_OFFSET_BIT;
973 if (flags & DD_TRI_UNFILLED)
974 index |= INTEL_UNFILLED_BIT;
975 }
976
977 if (have_wpos) {
978 intel->draw_point = intel_wpos_point;
979 intel->draw_line = intel_wpos_line;
980 intel->draw_tri = intel_wpos_triangle;
981
982 /* Make sure these get called:
983 */
984 index |= INTEL_FALLBACK_BIT;
985 }
986 else {
987 intel->draw_point = intel_draw_point;
988 intel->draw_line = intel_draw_line;
989 intel->draw_tri = intel_draw_triangle;
990 }
991
992 /* Hook in fallbacks for specific primitives.
993 */
994 if (flags & ANY_FALLBACK_FLAGS) {
995 if (flags & DD_LINE_STIPPLE)
996 intel->draw_line = intel_fallback_line;
997
998 if ((flags & DD_TRI_STIPPLE) && !intel->hw_stipple)
999 intel->draw_tri = intel_fallback_tri;
1000
1001 if (flags & DD_POINT_ATTEN) {
1002 if (0)
1003 intel->draw_point = intel_atten_point;
1004 else
1005 intel->draw_point = intel_fallback_point;
1006 }
1007
1008 index |= INTEL_FALLBACK_BIT;
1009 }
1010 }
1011
1012 if (intel->RenderIndex != index) {
1013 intel->RenderIndex = index;
1014
1015 tnl->Driver.Render.Points = rast_tab[index].points;
1016 tnl->Driver.Render.Line = rast_tab[index].line;
1017 tnl->Driver.Render.Triangle = rast_tab[index].triangle;
1018 tnl->Driver.Render.Quad = rast_tab[index].quad;
1019
1020 if (index == 0) {
1021 tnl->Driver.Render.PrimTabVerts = intel_render_tab_verts;
1022 tnl->Driver.Render.PrimTabElts = intel_render_tab_elts;
1023 tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */
1024 tnl->Driver.Render.ClippedPolygon = intelFastRenderClippedPoly;
1025 }
1026 else {
1027 tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
1028 tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
1029 tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine;
1030 tnl->Driver.Render.ClippedPolygon = intelRenderClippedPoly;
1031 }
1032 }
1033 }
1034
1035 static const GLenum reduced_prim[GL_POLYGON + 1] = {
1036 [GL_POINTS] = GL_POINTS,
1037 [GL_LINES] = GL_LINES,
1038 [GL_LINE_LOOP] = GL_LINES,
1039 [GL_LINE_STRIP] = GL_LINES,
1040 [GL_TRIANGLES] = GL_TRIANGLES,
1041 [GL_TRIANGLE_STRIP] = GL_TRIANGLES,
1042 [GL_TRIANGLE_FAN] = GL_TRIANGLES,
1043 [GL_QUADS] = GL_TRIANGLES,
1044 [GL_QUAD_STRIP] = GL_TRIANGLES,
1045 [GL_POLYGON] = GL_TRIANGLES
1046 };
1047
1048
1049 /**********************************************************************/
1050 /* High level hooks for t_vb_render.c */
1051 /**********************************************************************/
1052
1053
1054
1055
1056 static void
intelRunPipeline(struct gl_context * ctx)1057 intelRunPipeline(struct gl_context * ctx)
1058 {
1059 struct intel_context *intel = intel_context(ctx);
1060
1061 _mesa_lock_context_textures(ctx);
1062
1063 if (ctx->NewState)
1064 _mesa_update_state_locked(ctx);
1065
1066 /* We need to get this done before we start the pipeline, or a
1067 * change in the INTEL_FALLBACK() of its intel_draw_buffers() call
1068 * while the pipeline is running will result in mismatched swrast
1069 * map/unmaps, and later assertion failures.
1070 */
1071 intel_prepare_render(intel);
1072
1073 if (intel->NewGLState) {
1074 if (intel->NewGLState & _NEW_TEXTURE) {
1075 intel->vtbl.update_texture_state(intel);
1076 }
1077
1078 if (!intel->Fallback) {
1079 if (intel->NewGLState & _INTEL_NEW_RENDERSTATE)
1080 intelChooseRenderState(ctx);
1081 }
1082
1083 intel->NewGLState = 0;
1084 }
1085
1086 intel->tnl_pipeline_running = true;
1087 _tnl_run_pipeline(ctx);
1088 intel->tnl_pipeline_running = false;
1089
1090 _mesa_unlock_context_textures(ctx);
1091 }
1092
1093 static void
intelRenderStart(struct gl_context * ctx)1094 intelRenderStart(struct gl_context * ctx)
1095 {
1096 struct intel_context *intel = intel_context(ctx);
1097
1098 intel_check_front_buffer_rendering(intel);
1099 intel->vtbl.render_start(intel_context(ctx));
1100 intel->vtbl.emit_state(intel);
1101 }
1102
1103 static void
intelRenderFinish(struct gl_context * ctx)1104 intelRenderFinish(struct gl_context * ctx)
1105 {
1106 struct intel_context *intel = intel_context(ctx);
1107
1108 if (intel->RenderIndex & INTEL_FALLBACK_BIT)
1109 _swrast_flush(ctx);
1110
1111 INTEL_FIREVERTICES(intel);
1112 }
1113
1114
1115
1116
1117 /* System to flush dma and emit state changes based on the rasterized
1118 * primitive.
1119 */
1120 static void
intelRasterPrimitive(struct gl_context * ctx,GLenum rprim,GLuint hwprim)1121 intelRasterPrimitive(struct gl_context * ctx, GLenum rprim, GLuint hwprim)
1122 {
1123 struct intel_context *intel = intel_context(ctx);
1124
1125 if (0)
1126 fprintf(stderr, "%s %s %x\n", __func__,
1127 _mesa_enum_to_string(rprim), hwprim);
1128
1129 intel->vtbl.reduced_primitive_state(intel, rprim);
1130
1131 /* Start a new primitive. Arrange to have it flushed later on.
1132 */
1133 if (hwprim != intel->prim.primitive) {
1134 INTEL_FIREVERTICES(intel);
1135
1136 intel_set_prim(intel, hwprim);
1137 }
1138 }
1139
1140
1141 /*
1142 */
1143 static void
intelRenderPrimitive(struct gl_context * ctx,GLenum prim)1144 intelRenderPrimitive(struct gl_context * ctx, GLenum prim)
1145 {
1146 struct intel_context *intel = intel_context(ctx);
1147 GLboolean unfilled = (ctx->Polygon.FrontMode != GL_FILL ||
1148 ctx->Polygon.BackMode != GL_FILL);
1149
1150 if (0)
1151 fprintf(stderr, "%s %s\n", __func__, _mesa_enum_to_string(prim));
1152
1153 /* Let some clipping routines know which primitive they're dealing
1154 * with.
1155 */
1156 intel->render_primitive = prim;
1157
1158 /* Shortcircuit this when called for unfilled triangles. The rasterized
1159 * primitive will always be reset by lower level functions in that case,
1160 * potentially pingponging the state:
1161 */
1162 if (reduced_prim[prim] == GL_TRIANGLES && unfilled)
1163 return;
1164
1165 /* Set some primitive-dependent state and Start? a new primitive.
1166 */
1167 intelRasterPrimitive(ctx, reduced_prim[prim], hw_prim[prim]);
1168 }
1169
1170
1171 /**********************************************************************/
1172 /* Transition to/from hardware rasterization. */
1173 /**********************************************************************/
1174
1175 static char *fallbackStrings[] = {
1176 [0] = "Draw buffer",
1177 [1] = "Read buffer",
1178 [2] = "Depth buffer",
1179 [3] = "Stencil buffer",
1180 [4] = "User disable",
1181 [5] = "Render mode",
1182
1183 [12] = "Texture",
1184 [13] = "Color mask",
1185 [14] = "Stencil",
1186 [15] = "Stipple",
1187 [16] = "Program",
1188 [17] = "Logic op",
1189 [18] = "Smooth polygon",
1190 [19] = "Smooth point",
1191 [20] = "point sprite coord origin",
1192 [21] = "depth/color drawing offset",
1193 [22] = "coord replace(SPRITE POINT ENABLE)",
1194 };
1195
1196
1197 static char *
getFallbackString(GLuint bit)1198 getFallbackString(GLuint bit)
1199 {
1200 int i = 0;
1201 while (bit > 1) {
1202 i++;
1203 bit >>= 1;
1204 }
1205 return fallbackStrings[i];
1206 }
1207
1208
1209
1210 /**
1211 * Enable/disable a fallback flag.
1212 * \param bit one of INTEL_FALLBACK_x flags.
1213 */
1214 void
intelFallback(struct intel_context * intel,GLbitfield bit,bool mode)1215 intelFallback(struct intel_context *intel, GLbitfield bit, bool mode)
1216 {
1217 struct gl_context *ctx = &intel->ctx;
1218 TNLcontext *tnl = TNL_CONTEXT(ctx);
1219 const GLbitfield oldfallback = intel->Fallback;
1220
1221 if (mode) {
1222 intel->Fallback |= bit;
1223 if (oldfallback == 0) {
1224 assert(!intel->tnl_pipeline_running);
1225
1226 intel_flush(ctx);
1227 if (INTEL_DEBUG & DEBUG_PERF)
1228 fprintf(stderr, "ENTER FALLBACK %x: %s\n",
1229 bit, getFallbackString(bit));
1230 _swsetup_Wakeup(ctx);
1231 intel->RenderIndex = ~0;
1232 }
1233 }
1234 else {
1235 intel->Fallback &= ~bit;
1236 if (oldfallback == bit) {
1237 assert(!intel->tnl_pipeline_running);
1238
1239 _swrast_flush(ctx);
1240 if (INTEL_DEBUG & DEBUG_PERF)
1241 fprintf(stderr, "LEAVE FALLBACK %s\n", getFallbackString(bit));
1242 tnl->Driver.Render.Start = intelRenderStart;
1243 tnl->Driver.Render.PrimitiveNotify = intelRenderPrimitive;
1244 tnl->Driver.Render.Finish = intelRenderFinish;
1245 tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
1246 tnl->Driver.Render.CopyPV = _tnl_copy_pv;
1247 tnl->Driver.Render.Interp = _tnl_interp;
1248
1249 _tnl_invalidate_vertex_state(ctx, ~0);
1250 _tnl_invalidate_vertices(ctx, ~0);
1251 _tnl_install_attrs(ctx,
1252 intel->vertex_attrs,
1253 intel->vertex_attr_count,
1254 intel->ViewportMatrix.m, 0);
1255
1256 intel->NewGLState |= _INTEL_NEW_RENDERSTATE;
1257 }
1258 }
1259 }
1260
1261 /**********************************************************************/
1262 /* Initialization. */
1263 /**********************************************************************/
1264
1265
1266 void
intelInitTriFuncs(struct gl_context * ctx)1267 intelInitTriFuncs(struct gl_context * ctx)
1268 {
1269 TNLcontext *tnl = TNL_CONTEXT(ctx);
1270 static int firsttime = 1;
1271
1272 if (firsttime) {
1273 init_rast_tab();
1274 firsttime = 0;
1275 }
1276
1277 tnl->Driver.RunPipeline = intelRunPipeline;
1278 tnl->Driver.Render.Start = intelRenderStart;
1279 tnl->Driver.Render.Finish = intelRenderFinish;
1280 tnl->Driver.Render.PrimitiveNotify = intelRenderPrimitive;
1281 tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
1282 tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
1283 tnl->Driver.Render.CopyPV = _tnl_copy_pv;
1284 tnl->Driver.Render.Interp = _tnl_interp;
1285 }
1286