1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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 TUNGSTEN GRAPHICS 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.
26 **************************************************************************/
28 /** @file intel_tris.c
30 * This file contains functions for managing the vertex buffer and emitting
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"
42 #include "swrast/swrast.h"
43 #include "swrast_setup/swrast_setup.h"
44 #include "tnl/t_context.h"
45 #include "tnl/t_pipeline.h"
46 #include "tnl/t_vertex.h"
48 #include "intel_screen.h"
49 #include "intel_context.h"
50 #include "intel_tris.h"
51 #include "intel_batchbuffer.h"
52 #include "intel_buffers.h"
53 #include "intel_reg.h"
54 #include "intel_span.h"
55 #include "i830_context.h"
58 static void intelRenderPrimitive(GLcontext
* ctx
, GLenum prim
);
59 static void intelRasterPrimitive(GLcontext
* ctx
, GLenum rprim
,
63 intel_flush_inline_primitive(struct intel_context
*intel
)
65 GLuint used
= intel
->batch
->ptr
- intel
->prim
.start_ptr
;
67 assert(intel
->prim
.primitive
!= ~0);
74 *(int *) intel
->prim
.start_ptr
= (_3DPRIMITIVE
|
75 intel
->prim
.primitive
| (used
/ 4 - 2));
80 intel
->batch
->ptr
-= used
;
83 intel
->prim
.primitive
= ~0;
84 intel
->prim
.start_ptr
= 0;
85 intel
->prim
.flush
= 0;
88 static void intel_start_inline(struct intel_context
*intel
, uint32_t prim
)
92 intel
->vtbl
.emit_state(intel
);
94 intel
->no_batch_wrap
= GL_TRUE
;
96 /*printf("%s *", __progname);*/
98 /* Emit a slot which will be filled with the inline primitive
103 assert((intel
->batch
->dirty_state
& (1<<1)) == 0);
105 intel
->prim
.start_ptr
= intel
->batch
->ptr
;
106 intel
->prim
.primitive
= prim
;
107 intel
->prim
.flush
= intel_flush_inline_primitive
;
112 intel
->no_batch_wrap
= GL_FALSE
;
116 static void intel_wrap_inline(struct intel_context
*intel
)
118 GLuint prim
= intel
->prim
.primitive
;
120 intel_flush_inline_primitive(intel
);
121 intel_batchbuffer_flush(intel
->batch
);
122 intel_start_inline(intel
, prim
); /* ??? */
125 static GLuint
*intel_extend_inline(struct intel_context
*intel
, GLuint dwords
)
127 GLuint sz
= dwords
* sizeof(GLuint
);
130 assert(intel
->prim
.flush
== intel_flush_inline_primitive
);
132 if (intel_batchbuffer_space(intel
->batch
) < sz
)
133 intel_wrap_inline(intel
);
137 intel
->vtbl
.assert_not_dirty(intel
);
139 ptr
= (GLuint
*) intel
->batch
->ptr
;
140 intel
->batch
->ptr
+= sz
;
145 /** Sets the primitive type for a primitive sequence, flushing as needed. */
146 void intel_set_prim(struct intel_context
*intel
, uint32_t prim
)
148 /* if we have no VBOs */
150 if (intel
->intelScreen
->no_vbo
) {
151 intel_start_inline(intel
, prim
);
154 if (prim
!= intel
->prim
.primitive
) {
155 INTEL_FIREVERTICES(intel
);
156 intel
->prim
.primitive
= prim
;
160 /** Returns mapped VB space for the given number of vertices */
161 uint32_t *intel_get_prim_space(struct intel_context
*intel
, unsigned int count
)
165 if (intel
->intelScreen
->no_vbo
) {
166 return intel_extend_inline(intel
, count
* intel
->vertex_size
);
169 /* Check for space in the existing VB */
170 if (intel
->prim
.vb_bo
== NULL
||
171 (intel
->prim
.current_offset
+
172 count
* intel
->vertex_size
* 4) > INTEL_VB_SIZE
||
173 (intel
->prim
.count
+ count
) >= (1 << 16)) {
174 /* Flush existing prim if any */
175 INTEL_FIREVERTICES(intel
);
177 intel_finish_vb(intel
);
180 if (intel
->prim
.vb
== NULL
)
181 intel
->prim
.vb
= malloc(INTEL_VB_SIZE
);
182 intel
->prim
.vb_bo
= dri_bo_alloc(intel
->bufmgr
, "vb",
184 intel
->prim
.start_offset
= 0;
185 intel
->prim
.current_offset
= 0;
188 intel
->prim
.flush
= intel_flush_prim
;
190 addr
= (uint32_t *)(intel
->prim
.vb
+ intel
->prim
.current_offset
);
191 intel
->prim
.current_offset
+= intel
->vertex_size
* 4 * count
;
192 intel
->prim
.count
+= count
;
197 /** Dispatches the accumulated primitive to the batchbuffer. */
198 void intel_flush_prim(struct intel_context
*intel
)
200 dri_bo
*aper_array
[2];
202 unsigned int offset
, count
;
205 /* Must be called after an intel_start_prim. */
206 assert(intel
->prim
.primitive
!= ~0);
208 if (intel
->prim
.count
== 0)
211 /* Clear the current prims out of the context state so that a batch flush
212 * flush triggered by emit_state doesn't loop back to flush_prim again.
214 vb_bo
= intel
->prim
.vb_bo
;
215 dri_bo_reference(vb_bo
);
216 count
= intel
->prim
.count
;
217 intel
->prim
.count
= 0;
218 offset
= intel
->prim
.start_offset
;
219 intel
->prim
.start_offset
= intel
->prim
.current_offset
;
220 if (!intel
->gen
>= 3)
221 intel
->prim
.start_offset
= ALIGN(intel
->prim
.start_offset
, 128);
222 intel
->prim
.flush
= NULL
;
224 intel
->vtbl
.emit_state(intel
);
226 aper_array
[0] = intel
->batch
->buf
;
227 aper_array
[1] = vb_bo
;
228 if (dri_bufmgr_check_aperture_space(aper_array
, 2)) {
229 intel_batchbuffer_flush(intel
->batch
);
230 intel
->vtbl
.emit_state(intel
);
233 /* Ensure that we don't start a new batch for the following emit, which
234 * depends on the state just emitted. emit_state should be making sure we
235 * have the space for this.
237 intel
->no_batch_wrap
= GL_TRUE
;
239 /* Check that we actually emitted the state into this batch, using the
240 * UPLOAD_CTX bit as the signal.
242 assert((intel
->batch
->dirty_state
& (1<<1)) == 0);
245 printf("emitting %d..%d=%d vertices size %d\n", offset
,
246 intel
->prim
.current_offset
, count
,
247 intel
->vertex_size
* 4);
250 if (intel
->gen
>= 3) {
252 OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1
|
253 I1_LOAD_S(0) | I1_LOAD_S(1) | 1);
254 assert((offset
& !S0_VB_OFFSET_MASK
) == 0);
255 OUT_RELOC(vb_bo
, I915_GEM_DOMAIN_VERTEX
, 0, offset
);
256 OUT_BATCH((intel
->vertex_size
<< S1_VERTEX_WIDTH_SHIFT
) |
257 (intel
->vertex_size
<< S1_VERTEX_PITCH_SHIFT
));
259 OUT_BATCH(_3DPRIMITIVE
|
261 PRIM_INDIRECT_SEQUENTIAL
|
262 intel
->prim
.primitive
|
264 OUT_BATCH(0); /* Beginning vertex index */
267 struct i830_context
*i830
= i830_context(&intel
->ctx
);
270 OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1
|
271 I1_LOAD_S(0) | I1_LOAD_S(2) | 1);
273 assert((offset
& !S0_VB_OFFSET_MASK_830
) == 0);
274 OUT_RELOC(vb_bo
, I915_GEM_DOMAIN_VERTEX
, 0,
275 offset
| (intel
->vertex_size
<< S0_VB_PITCH_SHIFT_830
) |
278 * This is somewhat unfortunate -- VB width is tied up with
279 * vertex format data that we've already uploaded through
280 * _3DSTATE_VFT[01]_CMD. We may want to replace emits of VFT state with
281 * STATE_IMMEDIATE_1 like this to avoid duplication.
283 OUT_BATCH((i830
->state
.Ctx
[I830_CTXREG_VF
] & VFT0_TEX_COUNT_MASK
) >>
284 VFT0_TEX_COUNT_SHIFT
<< S2_TEX_COUNT_SHIFT_830
|
285 (i830
->state
.Ctx
[I830_CTXREG_VF2
] << 16) |
286 intel
->vertex_size
<< S2_VERTEX_0_WIDTH_SHIFT_830
);
288 OUT_BATCH(_3DPRIMITIVE
|
290 PRIM_INDIRECT_SEQUENTIAL
|
291 intel
->prim
.primitive
|
293 OUT_BATCH(0); /* Beginning vertex index */
297 intel
->no_batch_wrap
= GL_FALSE
;
299 dri_bo_unreference(vb_bo
);
303 * Uploads the locally-accumulated VB into the buffer object.
305 * This avoids us thrashing the cachelines in and out as the buffer gets
306 * filled, dispatched, then reused as the hardware completes rendering from it,
307 * and also lets us clflush less if we dispatch with a partially-filled VB.
309 * This is called normally from get_space when we're finishing a BO, but also
310 * at batch flush time so that we don't try accessing the contents of a
311 * just-dispatched buffer.
313 void intel_finish_vb(struct intel_context
*intel
)
315 if (intel
->prim
.vb_bo
== NULL
)
318 dri_bo_subdata(intel
->prim
.vb_bo
, 0, intel
->prim
.start_offset
,
320 dri_bo_unreference(intel
->prim
.vb_bo
);
321 intel
->prim
.vb_bo
= NULL
;
324 /***********************************************************************
325 * Emit primitives as inline vertices *
326 ***********************************************************************/
329 #define COPY_DWORDS( j, vb, vertsize, v ) \
332 __asm__ __volatile__( "rep ; movsl" \
333 : "=%c" (j), "=D" (vb), "=S" (__tmp) \
339 #define COPY_DWORDS( j, vb, vertsize, v ) \
341 for ( j = 0 ; j < vertsize ; j++ ) { \
342 vb[j] = ((GLuint *)v)[j]; \
349 intel_draw_quad(struct intel_context
*intel
,
351 intelVertexPtr v1
, intelVertexPtr v2
, intelVertexPtr v3
)
353 GLuint vertsize
= intel
->vertex_size
;
354 GLuint
*vb
= intel_get_prim_space(intel
, 6);
357 COPY_DWORDS(j
, vb
, vertsize
, v0
);
358 COPY_DWORDS(j
, vb
, vertsize
, v1
);
360 /* If smooth shading, draw like a trifan which gives better
361 * rasterization. Otherwise draw as two triangles with provoking
362 * vertex in third position as required for flat shading.
364 if (intel
->ctx
.Light
.ShadeModel
== GL_FLAT
) {
365 COPY_DWORDS(j
, vb
, vertsize
, v3
);
366 COPY_DWORDS(j
, vb
, vertsize
, v1
);
369 COPY_DWORDS(j
, vb
, vertsize
, v2
);
370 COPY_DWORDS(j
, vb
, vertsize
, v0
);
373 COPY_DWORDS(j
, vb
, vertsize
, v2
);
374 COPY_DWORDS(j
, vb
, vertsize
, v3
);
378 intel_draw_triangle(struct intel_context
*intel
,
379 intelVertexPtr v0
, intelVertexPtr v1
, intelVertexPtr v2
)
381 GLuint vertsize
= intel
->vertex_size
;
382 GLuint
*vb
= intel_get_prim_space(intel
, 3);
385 COPY_DWORDS(j
, vb
, vertsize
, v0
);
386 COPY_DWORDS(j
, vb
, vertsize
, v1
);
387 COPY_DWORDS(j
, vb
, vertsize
, v2
);
392 intel_draw_line(struct intel_context
*intel
,
393 intelVertexPtr v0
, intelVertexPtr v1
)
395 GLuint vertsize
= intel
->vertex_size
;
396 GLuint
*vb
= intel_get_prim_space(intel
, 2);
399 COPY_DWORDS(j
, vb
, vertsize
, v0
);
400 COPY_DWORDS(j
, vb
, vertsize
, v1
);
405 intel_draw_point(struct intel_context
*intel
, intelVertexPtr v0
)
407 GLuint vertsize
= intel
->vertex_size
;
408 GLuint
*vb
= intel_get_prim_space(intel
, 1);
411 /* Adjust for sub pixel position -- still required for conform. */
412 *(float *) &vb
[0] = v0
->v
.x
;
413 *(float *) &vb
[1] = v0
->v
.y
;
414 for (j
= 2; j
< vertsize
; j
++)
420 /***********************************************************************
421 * Fixup for ARB_point_parameters *
422 ***********************************************************************/
424 /* Currently not working - VERT_ATTRIB_POINTSIZE isn't correctly
425 * represented in the fragment program InputsRead field.
428 intel_atten_point(struct intel_context
*intel
, intelVertexPtr v0
)
430 GLcontext
*ctx
= &intel
->ctx
;
431 GLfloat psz
[4], col
[4], restore_psz
, restore_alpha
;
433 _tnl_get_attr(ctx
, v0
, _TNL_ATTRIB_POINTSIZE
, psz
);
434 _tnl_get_attr(ctx
, v0
, _TNL_ATTRIB_COLOR0
, col
);
436 restore_psz
= psz
[0];
437 restore_alpha
= col
[3];
439 if (psz
[0] >= ctx
->Point
.Threshold
) {
440 psz
[0] = MIN2(psz
[0], ctx
->Point
.MaxSize
);
443 GLfloat dsize
= psz
[0] / ctx
->Point
.Threshold
;
444 psz
[0] = MAX2(ctx
->Point
.Threshold
, ctx
->Point
.MinSize
);
445 col
[3] *= dsize
* dsize
;
451 if (restore_psz
!= psz
[0] || restore_alpha
!= col
[3]) {
452 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_POINTSIZE
, psz
);
453 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_COLOR0
, col
);
455 intel_draw_point(intel
, v0
);
457 psz
[0] = restore_psz
;
458 col
[3] = restore_alpha
;
460 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_POINTSIZE
, psz
);
461 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_COLOR0
, col
);
464 intel_draw_point(intel
, v0
);
471 /***********************************************************************
472 * Fixup for I915 WPOS texture coordinate *
473 ***********************************************************************/
478 intel_wpos_triangle(struct intel_context
*intel
,
479 intelVertexPtr v0
, intelVertexPtr v1
, intelVertexPtr v2
)
481 GLuint offset
= intel
->wpos_offset
;
482 GLuint size
= intel
->wpos_size
;
483 GLfloat
*v0_wpos
= (GLfloat
*)((char *)v0
+ offset
);
484 GLfloat
*v1_wpos
= (GLfloat
*)((char *)v1
+ offset
);
485 GLfloat
*v2_wpos
= (GLfloat
*)((char *)v2
+ offset
);
487 __memcpy(v0_wpos
, v0
, size
);
488 __memcpy(v1_wpos
, v1
, size
);
489 __memcpy(v2_wpos
, v2
, size
);
491 v0_wpos
[1] = -v0_wpos
[1] + intel
->driDrawable
->h
;
492 v1_wpos
[1] = -v1_wpos
[1] + intel
->driDrawable
->h
;
493 v2_wpos
[1] = -v2_wpos
[1] + intel
->driDrawable
->h
;
496 intel_draw_triangle(intel
, v0
, v1
, v2
);
501 intel_wpos_line(struct intel_context
*intel
,
502 intelVertexPtr v0
, intelVertexPtr v1
)
504 GLuint offset
= intel
->wpos_offset
;
505 GLuint size
= intel
->wpos_size
;
506 GLfloat
*v0_wpos
= (GLfloat
*)((char *)v0
+ offset
);
507 GLfloat
*v1_wpos
= (GLfloat
*)((char *)v1
+ offset
);
509 __memcpy(v0_wpos
, v0
, size
);
510 __memcpy(v1_wpos
, v1
, size
);
512 v0_wpos
[1] = -v0_wpos
[1] + intel
->driDrawable
->h
;
513 v1_wpos
[1] = -v1_wpos
[1] + intel
->driDrawable
->h
;
515 intel_draw_line(intel
, v0
, v1
);
520 intel_wpos_point(struct intel_context
*intel
, intelVertexPtr v0
)
522 GLuint offset
= intel
->wpos_offset
;
523 GLuint size
= intel
->wpos_size
;
524 GLfloat
*v0_wpos
= (GLfloat
*)((char *)v0
+ offset
);
526 __memcpy(v0_wpos
, v0
, size
);
527 v0_wpos
[1] = -v0_wpos
[1] + intel
->driDrawable
->h
;
529 intel_draw_point(intel
, v0
);
537 /***********************************************************************
538 * Macros for t_dd_tritmp.h to draw basic primitives *
539 ***********************************************************************/
541 #define TRI( a, b, c ) \
544 intel->draw_tri( intel, a, b, c ); \
546 intel_draw_triangle( intel, a, b, c ); \
549 #define QUAD( a, b, c, d ) \
552 intel->draw_tri( intel, a, b, d ); \
553 intel->draw_tri( intel, b, c, d ); \
555 intel_draw_quad( intel, a, b, c, d ); \
558 #define LINE( v0, v1 ) \
561 intel->draw_line( intel, v0, v1 ); \
563 intel_draw_line( intel, v0, v1 ); \
566 #define POINT( v0 ) \
569 intel->draw_point( intel, v0 ); \
571 intel_draw_point( intel, v0 ); \
575 /***********************************************************************
576 * Build render functions from dd templates *
577 ***********************************************************************/
579 #define INTEL_OFFSET_BIT 0x01
580 #define INTEL_TWOSIDE_BIT 0x02
581 #define INTEL_UNFILLED_BIT 0x04
582 #define INTEL_FALLBACK_BIT 0x08
583 #define INTEL_MAX_TRIFUNC 0x10
588 tnl_points_func points
;
590 tnl_triangle_func triangle
;
592 } rast_tab
[INTEL_MAX_TRIFUNC
];
595 #define DO_FALLBACK (IND & INTEL_FALLBACK_BIT)
596 #define DO_OFFSET (IND & INTEL_OFFSET_BIT)
597 #define DO_UNFILLED (IND & INTEL_UNFILLED_BIT)
598 #define DO_TWOSIDE (IND & INTEL_TWOSIDE_BIT)
604 #define DO_FULL_QUAD 1
608 #define HAVE_BACK_COLORS 0
609 #define HAVE_HW_FLATSHADE 1
610 #define VERTEX intelVertex
613 /* Only used to pull back colors into vertices (ie, we know color is
616 #define INTEL_COLOR( dst, src ) \
618 UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \
619 UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \
620 UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \
621 UNCLAMPED_FLOAT_TO_UBYTE((dst)[3], (src)[3]); \
624 #define INTEL_SPEC( dst, src ) \
626 UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \
627 UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \
628 UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \
632 #define DEPTH_SCALE intel->polygon_offset_scale
633 #define UNFILLED_TRI unfilled_tri
634 #define UNFILLED_QUAD unfilled_quad
635 #define VERT_X(_v) _v->v.x
636 #define VERT_Y(_v) _v->v.y
637 #define VERT_Z(_v) _v->v.z
638 #define AREA_IS_CCW( a ) (a > 0)
639 #define GET_VERTEX(e) (intel->verts + (e * intel->vertex_size * sizeof(GLuint)))
641 #define VERT_SET_RGBA( v, c ) if (coloroffset) INTEL_COLOR( v->ub4[coloroffset], c )
642 #define VERT_COPY_RGBA( v0, v1 ) if (coloroffset) v0->ui[coloroffset] = v1->ui[coloroffset]
643 #define VERT_SAVE_RGBA( idx ) if (coloroffset) color[idx] = v[idx]->ui[coloroffset]
644 #define VERT_RESTORE_RGBA( idx ) if (coloroffset) v[idx]->ui[coloroffset] = color[idx]
646 #define VERT_SET_SPEC( v, c ) if (specoffset) INTEL_SPEC( v->ub4[specoffset], c )
647 #define VERT_COPY_SPEC( v0, v1 ) if (specoffset) COPY_3V(v0->ub4[specoffset], v1->ub4[specoffset])
648 #define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset]
649 #define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
651 #define LOCAL_VARS(n) \
652 struct intel_context *intel = intel_context(ctx); \
653 GLuint color[n] = { 0, }, spec[n] = { 0, }; \
654 GLuint coloroffset = intel->coloroffset; \
655 GLboolean specoffset = intel->specoffset; \
656 (void) color; (void) spec; (void) coloroffset; (void) specoffset;
659 /***********************************************************************
660 * Helpers for rendering unfilled primitives *
661 ***********************************************************************/
663 static const GLuint hw_prim
[GL_POLYGON
+ 1] = {
676 #define RASTERIZE(x) intelRasterPrimitive( ctx, x, hw_prim[x] )
677 #define RENDER_PRIMITIVE intel->render_primitive
679 #define IND INTEL_FALLBACK_BIT
680 #include "tnl_dd/t_dd_unfilled.h"
683 /***********************************************************************
684 * Generate GL render functions *
685 ***********************************************************************/
689 #include "tnl_dd/t_dd_tritmp.h"
691 #define IND (INTEL_OFFSET_BIT)
692 #define TAG(x) x##_offset
693 #include "tnl_dd/t_dd_tritmp.h"
695 #define IND (INTEL_TWOSIDE_BIT)
696 #define TAG(x) x##_twoside
697 #include "tnl_dd/t_dd_tritmp.h"
699 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT)
700 #define TAG(x) x##_twoside_offset
701 #include "tnl_dd/t_dd_tritmp.h"
703 #define IND (INTEL_UNFILLED_BIT)
704 #define TAG(x) x##_unfilled
705 #include "tnl_dd/t_dd_tritmp.h"
707 #define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
708 #define TAG(x) x##_offset_unfilled
709 #include "tnl_dd/t_dd_tritmp.h"
711 #define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT)
712 #define TAG(x) x##_twoside_unfilled
713 #include "tnl_dd/t_dd_tritmp.h"
715 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
716 #define TAG(x) x##_twoside_offset_unfilled
717 #include "tnl_dd/t_dd_tritmp.h"
719 #define IND (INTEL_FALLBACK_BIT)
720 #define TAG(x) x##_fallback
721 #include "tnl_dd/t_dd_tritmp.h"
723 #define IND (INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
724 #define TAG(x) x##_offset_fallback
725 #include "tnl_dd/t_dd_tritmp.h"
727 #define IND (INTEL_TWOSIDE_BIT|INTEL_FALLBACK_BIT)
728 #define TAG(x) x##_twoside_fallback
729 #include "tnl_dd/t_dd_tritmp.h"
731 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
732 #define TAG(x) x##_twoside_offset_fallback
733 #include "tnl_dd/t_dd_tritmp.h"
735 #define IND (INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
736 #define TAG(x) x##_unfilled_fallback
737 #include "tnl_dd/t_dd_tritmp.h"
739 #define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
740 #define TAG(x) x##_offset_unfilled_fallback
741 #include "tnl_dd/t_dd_tritmp.h"
743 #define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
744 #define TAG(x) x##_twoside_unfilled_fallback
745 #include "tnl_dd/t_dd_tritmp.h"
747 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT| \
749 #define TAG(x) x##_twoside_offset_unfilled_fallback
750 #include "tnl_dd/t_dd_tritmp.h"
759 init_twoside_offset();
761 init_offset_unfilled();
762 init_twoside_unfilled();
763 init_twoside_offset_unfilled();
765 init_offset_fallback();
766 init_twoside_fallback();
767 init_twoside_offset_fallback();
768 init_unfilled_fallback();
769 init_offset_unfilled_fallback();
770 init_twoside_unfilled_fallback();
771 init_twoside_offset_unfilled_fallback();
775 /***********************************************************************
776 * Rasterization fallback helpers *
777 ***********************************************************************/
780 /* This code is hit only when a mix of accelerated and unaccelerated
781 * primitives are being drawn, and only for the unaccelerated
785 intel_fallback_tri(struct intel_context
*intel
,
786 intelVertex
* v0
, intelVertex
* v1
, intelVertex
* v2
)
788 GLcontext
*ctx
= &intel
->ctx
;
792 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
794 INTEL_FIREVERTICES(intel
);
796 _swsetup_Translate(ctx
, v0
, &v
[0]);
797 _swsetup_Translate(ctx
, v1
, &v
[1]);
798 _swsetup_Translate(ctx
, v2
, &v
[2]);
799 intelSpanRenderStart(ctx
);
800 _swrast_Triangle(ctx
, &v
[0], &v
[1], &v
[2]);
801 intelSpanRenderFinish(ctx
);
806 intel_fallback_line(struct intel_context
*intel
,
807 intelVertex
* v0
, intelVertex
* v1
)
809 GLcontext
*ctx
= &intel
->ctx
;
813 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
815 INTEL_FIREVERTICES(intel
);
817 _swsetup_Translate(ctx
, v0
, &v
[0]);
818 _swsetup_Translate(ctx
, v1
, &v
[1]);
819 intelSpanRenderStart(ctx
);
820 _swrast_Line(ctx
, &v
[0], &v
[1]);
821 intelSpanRenderFinish(ctx
);
825 intel_fallback_point(struct intel_context
*intel
,
828 GLcontext
*ctx
= &intel
->ctx
;
832 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
834 INTEL_FIREVERTICES(intel
);
836 _swsetup_Translate(ctx
, v0
, &v
[0]);
837 intelSpanRenderStart(ctx
);
838 _swrast_Point(ctx
, &v
[0]);
839 intelSpanRenderFinish(ctx
);
843 /**********************************************************************/
844 /* Render unclipped begin/end objects */
845 /**********************************************************************/
848 #define V(x) (intelVertex *)(vertptr + ((x)*vertsize*sizeof(GLuint)))
849 #define RENDER_POINTS( start, count ) \
850 for ( ; start < count ; start++) POINT( V(ELT(start)) );
851 #define RENDER_LINE( v0, v1 ) LINE( V(v0), V(v1) )
852 #define RENDER_TRI( v0, v1, v2 ) TRI( V(v0), V(v1), V(v2) )
853 #define RENDER_QUAD( v0, v1, v2, v3 ) QUAD( V(v0), V(v1), V(v2), V(v3) )
854 #define INIT(x) intelRenderPrimitive( ctx, x )
857 struct intel_context *intel = intel_context(ctx); \
858 GLubyte *vertptr = (GLubyte *)intel->verts; \
859 const GLuint vertsize = intel->vertex_size; \
860 const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
862 #define RESET_STIPPLE
863 #define RESET_OCCLUSION
864 #define PRESERVE_VB_DEFS
866 #define TAG(x) intel_##x##_verts
867 #include "tnl/t_vb_rendertmp.h"
870 #define TAG(x) intel_##x##_elts
871 #define ELT(x) elt[x]
872 #include "tnl/t_vb_rendertmp.h"
874 /**********************************************************************/
875 /* Render clipped primitives */
876 /**********************************************************************/
881 intelRenderClippedPoly(GLcontext
* ctx
, const GLuint
* elts
, GLuint n
)
883 struct intel_context
*intel
= intel_context(ctx
);
884 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
885 struct vertex_buffer
*VB
= &TNL_CONTEXT(ctx
)->vb
;
886 GLuint prim
= intel
->render_primitive
;
888 /* Render the new vertices as an unclipped polygon.
891 GLuint
*tmp
= VB
->Elts
;
892 VB
->Elts
= (GLuint
*) elts
;
893 tnl
->Driver
.Render
.PrimTabElts
[GL_POLYGON
] (ctx
, 0, n
,
894 PRIM_BEGIN
| PRIM_END
);
898 /* Restore the render primitive
900 if (prim
!= GL_POLYGON
)
901 tnl
->Driver
.Render
.PrimitiveNotify(ctx
, prim
);
905 intelRenderClippedLine(GLcontext
* ctx
, GLuint ii
, GLuint jj
)
907 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
909 tnl
->Driver
.Render
.Line(ctx
, ii
, jj
);
913 intelFastRenderClippedPoly(GLcontext
* ctx
, const GLuint
* elts
, GLuint n
)
915 struct intel_context
*intel
= intel_context(ctx
);
916 const GLuint vertsize
= intel
->vertex_size
;
917 GLuint
*vb
= intel_get_prim_space(intel
, (n
- 2) * 3);
918 GLubyte
*vertptr
= (GLubyte
*) intel
->verts
;
919 const GLuint
*start
= (const GLuint
*) V(elts
[0]);
922 for (i
= 2; i
< n
; i
++) {
923 COPY_DWORDS(j
, vb
, vertsize
, V(elts
[i
- 1]));
924 COPY_DWORDS(j
, vb
, vertsize
, V(elts
[i
]));
925 COPY_DWORDS(j
, vb
, vertsize
, start
);
929 /**********************************************************************/
930 /* Choose render functions */
931 /**********************************************************************/
936 #define ANY_FALLBACK_FLAGS (DD_LINE_STIPPLE | DD_TRI_STIPPLE | DD_POINT_ATTEN | DD_POINT_SMOOTH | DD_TRI_SMOOTH)
937 #define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE | DD_TRI_OFFSET | DD_TRI_UNFILLED)
940 intelChooseRenderState(GLcontext
* ctx
)
942 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
943 struct intel_context
*intel
= intel_context(ctx
);
944 GLuint flags
= ctx
->_TriangleCaps
;
945 const struct gl_fragment_program
*fprog
= ctx
->FragmentProgram
._Current
;
946 GLboolean have_wpos
= (fprog
&& (fprog
->Base
.InputsRead
& FRAG_BIT_WPOS
));
949 if (INTEL_DEBUG
& DEBUG_STATE
)
950 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
952 if ((flags
& (ANY_FALLBACK_FLAGS
| ANY_RASTER_FLAGS
)) || have_wpos
) {
954 if (flags
& ANY_RASTER_FLAGS
) {
955 if (flags
& DD_TRI_LIGHT_TWOSIDE
)
956 index
|= INTEL_TWOSIDE_BIT
;
957 if (flags
& DD_TRI_OFFSET
)
958 index
|= INTEL_OFFSET_BIT
;
959 if (flags
& DD_TRI_UNFILLED
)
960 index
|= INTEL_UNFILLED_BIT
;
964 intel
->draw_point
= intel_wpos_point
;
965 intel
->draw_line
= intel_wpos_line
;
966 intel
->draw_tri
= intel_wpos_triangle
;
968 /* Make sure these get called:
970 index
|= INTEL_FALLBACK_BIT
;
973 intel
->draw_point
= intel_draw_point
;
974 intel
->draw_line
= intel_draw_line
;
975 intel
->draw_tri
= intel_draw_triangle
;
978 /* Hook in fallbacks for specific primitives.
980 if (flags
& ANY_FALLBACK_FLAGS
) {
981 if (flags
& DD_LINE_STIPPLE
)
982 intel
->draw_line
= intel_fallback_line
;
984 if ((flags
& DD_TRI_STIPPLE
) && !intel
->hw_stipple
)
985 intel
->draw_tri
= intel_fallback_tri
;
987 if (flags
& DD_TRI_SMOOTH
) {
988 if (intel
->conformance_mode
> 0)
989 intel
->draw_tri
= intel_fallback_tri
;
992 if (flags
& DD_POINT_ATTEN
) {
994 intel
->draw_point
= intel_atten_point
;
996 intel
->draw_point
= intel_fallback_point
;
999 if (flags
& DD_POINT_SMOOTH
) {
1000 if (intel
->conformance_mode
> 0)
1001 intel
->draw_point
= intel_fallback_point
;
1004 index
|= INTEL_FALLBACK_BIT
;
1008 if (intel
->RenderIndex
!= index
) {
1009 intel
->RenderIndex
= index
;
1011 tnl
->Driver
.Render
.Points
= rast_tab
[index
].points
;
1012 tnl
->Driver
.Render
.Line
= rast_tab
[index
].line
;
1013 tnl
->Driver
.Render
.Triangle
= rast_tab
[index
].triangle
;
1014 tnl
->Driver
.Render
.Quad
= rast_tab
[index
].quad
;
1017 tnl
->Driver
.Render
.PrimTabVerts
= intel_render_tab_verts
;
1018 tnl
->Driver
.Render
.PrimTabElts
= intel_render_tab_elts
;
1019 tnl
->Driver
.Render
.ClippedLine
= line
; /* from tritmp.h */
1020 tnl
->Driver
.Render
.ClippedPolygon
= intelFastRenderClippedPoly
;
1023 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
1024 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
1025 tnl
->Driver
.Render
.ClippedLine
= intelRenderClippedLine
;
1026 tnl
->Driver
.Render
.ClippedPolygon
= intelRenderClippedPoly
;
1031 static const GLenum reduced_prim
[GL_POLYGON
+ 1] = {
1045 /**********************************************************************/
1046 /* High level hooks for t_vb_render.c */
1047 /**********************************************************************/
1053 intelRunPipeline(GLcontext
* ctx
)
1055 struct intel_context
*intel
= intel_context(ctx
);
1057 _mesa_lock_context_textures(ctx
);
1060 _mesa_update_state_locked(ctx
);
1062 if (intel
->NewGLState
) {
1063 if (intel
->NewGLState
& _NEW_TEXTURE
) {
1064 intel
->vtbl
.update_texture_state(intel
);
1067 if (!intel
->Fallback
) {
1068 if (intel
->NewGLState
& _INTEL_NEW_RENDERSTATE
)
1069 intelChooseRenderState(ctx
);
1072 intel
->NewGLState
= 0;
1075 intel_map_vertex_shader_textures(ctx
);
1076 _tnl_run_pipeline(ctx
);
1077 intel_unmap_vertex_shader_textures(ctx
);
1079 _mesa_unlock_context_textures(ctx
);
1083 intelRenderStart(GLcontext
* ctx
)
1085 struct intel_context
*intel
= intel_context(ctx
);
1087 intel_check_front_buffer_rendering(intel
);
1088 intel
->vtbl
.render_start(intel_context(ctx
));
1089 intel
->vtbl
.emit_state(intel
);
1093 intelRenderFinish(GLcontext
* ctx
)
1095 struct intel_context
*intel
= intel_context(ctx
);
1097 if (intel
->RenderIndex
& INTEL_FALLBACK_BIT
)
1100 INTEL_FIREVERTICES(intel
);
1106 /* System to flush dma and emit state changes based on the rasterized
1110 intelRasterPrimitive(GLcontext
* ctx
, GLenum rprim
, GLuint hwprim
)
1112 struct intel_context
*intel
= intel_context(ctx
);
1115 fprintf(stderr
, "%s %s %x\n", __FUNCTION__
,
1116 _mesa_lookup_enum_by_nr(rprim
), hwprim
);
1118 intel
->vtbl
.reduced_primitive_state(intel
, rprim
);
1120 /* Start a new primitive. Arrange to have it flushed later on.
1122 if (hwprim
!= intel
->prim
.primitive
) {
1123 INTEL_FIREVERTICES(intel
);
1125 intel_set_prim(intel
, hwprim
);
1133 intelRenderPrimitive(GLcontext
* ctx
, GLenum prim
)
1135 struct intel_context
*intel
= intel_context(ctx
);
1138 fprintf(stderr
, "%s %s\n", __FUNCTION__
, _mesa_lookup_enum_by_nr(prim
));
1140 /* Let some clipping routines know which primitive they're dealing
1143 intel
->render_primitive
= prim
;
1145 /* Shortcircuit this when called from t_dd_rendertmp.h for unfilled
1146 * triangles. The rasterized primitive will always be reset by
1147 * lower level functions in that case, potentially pingponging the
1150 if (reduced_prim
[prim
] == GL_TRIANGLES
&&
1151 (ctx
->_TriangleCaps
& DD_TRI_UNFILLED
))
1154 /* Set some primitive-dependent state and Start? a new primitive.
1156 intelRasterPrimitive(ctx
, reduced_prim
[prim
], hw_prim
[prim
]);
1160 /**********************************************************************/
1161 /* Transition to/from hardware rasterization. */
1162 /**********************************************************************/
1164 static char *fallbackStrings
[] = {
1165 [0] = "Draw buffer",
1166 [1] = "Read buffer",
1167 [2] = "Depth buffer",
1168 [3] = "Stencil buffer",
1169 [4] = "User disable",
1170 [5] = "Render mode",
1173 [13] = "Color mask",
1178 [18] = "Smooth polygon",
1179 [19] = "Smooth point",
1184 getFallbackString(GLuint bit
)
1191 return fallbackStrings
[i
];
1197 * Enable/disable a fallback flag.
1198 * \param bit one of INTEL_FALLBACK_x flags.
1201 intelFallback(struct intel_context
*intel
, GLbitfield bit
, GLboolean mode
)
1203 GLcontext
*ctx
= &intel
->ctx
;
1204 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
1205 const GLbitfield oldfallback
= intel
->Fallback
;
1208 intel
->Fallback
|= bit
;
1209 if (oldfallback
== 0) {
1211 if (INTEL_DEBUG
& DEBUG_FALLBACKS
)
1212 fprintf(stderr
, "ENTER FALLBACK %x: %s\n",
1213 bit
, getFallbackString(bit
));
1214 _swsetup_Wakeup(ctx
);
1215 intel
->RenderIndex
= ~0;
1219 intel
->Fallback
&= ~bit
;
1220 if (oldfallback
== bit
) {
1222 if (INTEL_DEBUG
& DEBUG_FALLBACKS
)
1223 fprintf(stderr
, "LEAVE FALLBACK %s\n", getFallbackString(bit
));
1224 tnl
->Driver
.Render
.Start
= intelRenderStart
;
1225 tnl
->Driver
.Render
.PrimitiveNotify
= intelRenderPrimitive
;
1226 tnl
->Driver
.Render
.Finish
= intelRenderFinish
;
1227 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
1228 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
1229 tnl
->Driver
.Render
.Interp
= _tnl_interp
;
1231 _tnl_invalidate_vertex_state(ctx
, ~0);
1232 _tnl_invalidate_vertices(ctx
, ~0);
1233 _tnl_install_attrs(ctx
,
1234 intel
->vertex_attrs
,
1235 intel
->vertex_attr_count
,
1236 intel
->ViewportMatrix
.m
, 0);
1238 intel
->NewGLState
|= _INTEL_NEW_RENDERSTATE
;
1249 /**********************************************************************/
1250 /* Initialization. */
1251 /**********************************************************************/
1255 intelInitTriFuncs(GLcontext
* ctx
)
1257 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
1258 static int firsttime
= 1;
1265 tnl
->Driver
.RunPipeline
= intelRunPipeline
;
1266 tnl
->Driver
.Render
.Start
= intelRenderStart
;
1267 tnl
->Driver
.Render
.Finish
= intelRenderFinish
;
1268 tnl
->Driver
.Render
.PrimitiveNotify
= intelRenderPrimitive
;
1269 tnl
->Driver
.Render
.ResetLineStipple
= _swrast_ResetLineStipple
;
1270 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
1271 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
1272 tnl
->Driver
.Render
.Interp
= _tnl_interp
;