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 "intel_chipset.h"
56 #include "i830_context.h"
59 static void intelRenderPrimitive(GLcontext
* ctx
, GLenum prim
);
60 static void intelRasterPrimitive(GLcontext
* ctx
, GLenum rprim
,
64 intel_flush_inline_primitive(struct intel_context
*intel
)
66 GLuint used
= intel
->batch
->ptr
- intel
->prim
.start_ptr
;
68 assert(intel
->prim
.primitive
!= ~0);
70 /* _mesa_printf("/\n"); */
75 *(int *) intel
->prim
.start_ptr
= (_3DPRIMITIVE
|
76 intel
->prim
.primitive
| (used
/ 4 - 2));
81 intel
->batch
->ptr
-= used
;
84 intel
->prim
.primitive
= ~0;
85 intel
->prim
.start_ptr
= 0;
86 intel
->prim
.flush
= 0;
89 static void intel_start_inline(struct intel_context
*intel
, uint32_t prim
)
93 intel
->vtbl
.emit_state(intel
);
95 intel
->no_batch_wrap
= GL_TRUE
;
97 /*_mesa_printf("%s *", __progname);*/
99 /* Emit a slot which will be filled with the inline primitive
105 assert((intel
->batch
->dirty_state
& (1<<1)) == 0);
107 intel
->prim
.start_ptr
= intel
->batch
->ptr
;
108 intel
->prim
.primitive
= prim
;
109 intel
->prim
.flush
= intel_flush_inline_primitive
;
114 intel
->no_batch_wrap
= GL_FALSE
;
115 /* _mesa_printf(">"); */
118 static void intel_wrap_inline(struct intel_context
*intel
)
120 GLuint prim
= intel
->prim
.primitive
;
122 intel_flush_inline_primitive(intel
);
123 intel_batchbuffer_flush(intel
->batch
);
124 intel_start_inline(intel
, prim
); /* ??? */
127 static GLuint
*intel_extend_inline(struct intel_context
*intel
, GLuint dwords
)
129 GLuint sz
= dwords
* sizeof(GLuint
);
132 assert(intel
->prim
.flush
== intel_flush_inline_primitive
);
134 if (intel_batchbuffer_space(intel
->batch
) < sz
)
135 intel_wrap_inline(intel
);
137 /* _mesa_printf("."); */
139 intel
->vtbl
.assert_not_dirty(intel
);
141 ptr
= (GLuint
*) intel
->batch
->ptr
;
142 intel
->batch
->ptr
+= sz
;
147 /** Sets the primitive type for a primitive sequence, flushing as needed. */
148 void intel_set_prim(struct intel_context
*intel
, uint32_t prim
)
150 /* if we have no VBOs */
152 if (intel
->intelScreen
->no_vbo
) {
153 intel_start_inline(intel
, prim
);
156 if (prim
!= intel
->prim
.primitive
) {
157 INTEL_FIREVERTICES(intel
);
158 intel
->prim
.primitive
= prim
;
162 /** Returns mapped VB space for the given number of vertices */
163 uint32_t *intel_get_prim_space(struct intel_context
*intel
, unsigned int count
)
167 if (intel
->intelScreen
->no_vbo
) {
168 return intel_extend_inline(intel
, count
* intel
->vertex_size
);
171 /* Check for space in the existing VB */
172 if (intel
->prim
.vb_bo
== NULL
||
173 (intel
->prim
.current_offset
+
174 count
* intel
->vertex_size
* 4) > INTEL_VB_SIZE
||
175 (intel
->prim
.count
+ count
) >= (1 << 16)) {
176 /* Flush existing prim if any */
177 INTEL_FIREVERTICES(intel
);
179 intel_finish_vb(intel
);
182 if (intel
->prim
.vb
== NULL
)
183 intel
->prim
.vb
= malloc(INTEL_VB_SIZE
);
184 intel
->prim
.vb_bo
= dri_bo_alloc(intel
->bufmgr
, "vb",
186 intel
->prim
.start_offset
= 0;
187 intel
->prim
.current_offset
= 0;
190 intel
->prim
.flush
= intel_flush_prim
;
192 addr
= (uint32_t *)(intel
->prim
.vb
+ intel
->prim
.current_offset
);
193 intel
->prim
.current_offset
+= intel
->vertex_size
* 4 * count
;
194 intel
->prim
.count
+= count
;
199 /** Dispatches the accumulated primitive to the batchbuffer. */
200 void intel_flush_prim(struct intel_context
*intel
)
202 dri_bo
*aper_array
[2];
204 unsigned int offset
, count
;
207 /* Must be called after an intel_start_prim. */
208 assert(intel
->prim
.primitive
!= ~0);
210 if (intel
->prim
.count
== 0)
213 /* Clear the current prims out of the context state so that a batch flush
214 * flush triggered by emit_state doesn't loop back to flush_prim again.
216 vb_bo
= intel
->prim
.vb_bo
;
217 dri_bo_reference(vb_bo
);
218 count
= intel
->prim
.count
;
219 intel
->prim
.count
= 0;
220 offset
= intel
->prim
.start_offset
;
221 intel
->prim
.start_offset
= intel
->prim
.current_offset
;
222 if (!intel
->gen
>= 3)
223 intel
->prim
.start_offset
= ALIGN(intel
->prim
.start_offset
, 128);
224 intel
->prim
.flush
= NULL
;
226 intel
->vtbl
.emit_state(intel
);
228 aper_array
[0] = intel
->batch
->buf
;
229 aper_array
[1] = vb_bo
;
230 if (dri_bufmgr_check_aperture_space(aper_array
, 2)) {
231 intel_batchbuffer_flush(intel
->batch
);
232 intel
->vtbl
.emit_state(intel
);
235 /* Ensure that we don't start a new batch for the following emit, which
236 * depends on the state just emitted. emit_state should be making sure we
237 * have the space for this.
239 intel
->no_batch_wrap
= GL_TRUE
;
241 /* Check that we actually emitted the state into this batch, using the
242 * UPLOAD_CTX bit as the signal.
244 assert((intel
->batch
->dirty_state
& (1<<1)) == 0);
247 printf("emitting %d..%d=%d vertices size %d\n", offset
,
248 intel
->prim
.current_offset
, count
,
249 intel
->vertex_size
* 4);
252 if (intel
->gen
>= 3) {
254 OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1
|
255 I1_LOAD_S(0) | I1_LOAD_S(1) | 1);
256 assert((offset
& !S0_VB_OFFSET_MASK
) == 0);
257 OUT_RELOC(vb_bo
, I915_GEM_DOMAIN_VERTEX
, 0, offset
);
258 OUT_BATCH((intel
->vertex_size
<< S1_VERTEX_WIDTH_SHIFT
) |
259 (intel
->vertex_size
<< S1_VERTEX_PITCH_SHIFT
));
261 OUT_BATCH(_3DPRIMITIVE
|
263 PRIM_INDIRECT_SEQUENTIAL
|
264 intel
->prim
.primitive
|
266 OUT_BATCH(0); /* Beginning vertex index */
269 struct i830_context
*i830
= i830_context(&intel
->ctx
);
272 OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1
|
273 I1_LOAD_S(0) | I1_LOAD_S(2) | 1);
275 assert((offset
& !S0_VB_OFFSET_MASK_830
) == 0);
276 OUT_RELOC(vb_bo
, I915_GEM_DOMAIN_VERTEX
, 0,
277 offset
| (intel
->vertex_size
<< S0_VB_PITCH_SHIFT_830
) |
280 * This is somewhat unfortunate -- VB width is tied up with
281 * vertex format data that we've already uploaded through
282 * _3DSTATE_VFT[01]_CMD. We may want to replace emits of VFT state with
283 * STATE_IMMEDIATE_1 like this to avoid duplication.
285 OUT_BATCH((i830
->state
.Ctx
[I830_CTXREG_VF
] & VFT0_TEX_COUNT_MASK
) >>
286 VFT0_TEX_COUNT_SHIFT
<< S2_TEX_COUNT_SHIFT_830
|
287 (i830
->state
.Ctx
[I830_CTXREG_VF2
] << 16) |
288 intel
->vertex_size
<< S2_VERTEX_0_WIDTH_SHIFT_830
);
290 OUT_BATCH(_3DPRIMITIVE
|
292 PRIM_INDIRECT_SEQUENTIAL
|
293 intel
->prim
.primitive
|
295 OUT_BATCH(0); /* Beginning vertex index */
299 intel
->no_batch_wrap
= GL_FALSE
;
301 dri_bo_unreference(vb_bo
);
305 * Uploads the locally-accumulated VB into the buffer object.
307 * This avoids us thrashing the cachelines in and out as the buffer gets
308 * filled, dispatched, then reused as the hardware completes rendering from it,
309 * and also lets us clflush less if we dispatch with a partially-filled VB.
311 * This is called normally from get_space when we're finishing a BO, but also
312 * at batch flush time so that we don't try accessing the contents of a
313 * just-dispatched buffer.
315 void intel_finish_vb(struct intel_context
*intel
)
317 if (intel
->prim
.vb_bo
== NULL
)
320 dri_bo_subdata(intel
->prim
.vb_bo
, 0, intel
->prim
.start_offset
,
322 dri_bo_unreference(intel
->prim
.vb_bo
);
323 intel
->prim
.vb_bo
= NULL
;
326 /***********************************************************************
327 * Emit primitives as inline vertices *
328 ***********************************************************************/
331 #define COPY_DWORDS( j, vb, vertsize, v ) \
334 __asm__ __volatile__( "rep ; movsl" \
335 : "=%c" (j), "=D" (vb), "=S" (__tmp) \
341 #define COPY_DWORDS( j, vb, vertsize, v ) \
343 for ( j = 0 ; j < vertsize ; j++ ) { \
344 vb[j] = ((GLuint *)v)[j]; \
351 intel_draw_quad(struct intel_context
*intel
,
353 intelVertexPtr v1
, intelVertexPtr v2
, intelVertexPtr v3
)
355 GLuint vertsize
= intel
->vertex_size
;
356 GLuint
*vb
= intel_get_prim_space(intel
, 6);
359 COPY_DWORDS(j
, vb
, vertsize
, v0
);
360 COPY_DWORDS(j
, vb
, vertsize
, v1
);
362 /* If smooth shading, draw like a trifan which gives better
363 * rasterization. Otherwise draw as two triangles with provoking
364 * vertex in third position as required for flat shading.
366 if (intel
->ctx
.Light
.ShadeModel
== GL_FLAT
) {
367 COPY_DWORDS(j
, vb
, vertsize
, v3
);
368 COPY_DWORDS(j
, vb
, vertsize
, v1
);
371 COPY_DWORDS(j
, vb
, vertsize
, v2
);
372 COPY_DWORDS(j
, vb
, vertsize
, v0
);
375 COPY_DWORDS(j
, vb
, vertsize
, v2
);
376 COPY_DWORDS(j
, vb
, vertsize
, v3
);
380 intel_draw_triangle(struct intel_context
*intel
,
381 intelVertexPtr v0
, intelVertexPtr v1
, intelVertexPtr v2
)
383 GLuint vertsize
= intel
->vertex_size
;
384 GLuint
*vb
= intel_get_prim_space(intel
, 3);
387 COPY_DWORDS(j
, vb
, vertsize
, v0
);
388 COPY_DWORDS(j
, vb
, vertsize
, v1
);
389 COPY_DWORDS(j
, vb
, vertsize
, v2
);
394 intel_draw_line(struct intel_context
*intel
,
395 intelVertexPtr v0
, intelVertexPtr v1
)
397 GLuint vertsize
= intel
->vertex_size
;
398 GLuint
*vb
= intel_get_prim_space(intel
, 2);
401 COPY_DWORDS(j
, vb
, vertsize
, v0
);
402 COPY_DWORDS(j
, vb
, vertsize
, v1
);
407 intel_draw_point(struct intel_context
*intel
, intelVertexPtr v0
)
409 GLuint vertsize
= intel
->vertex_size
;
410 GLuint
*vb
= intel_get_prim_space(intel
, 1);
413 /* Adjust for sub pixel position -- still required for conform. */
414 *(float *) &vb
[0] = v0
->v
.x
;
415 *(float *) &vb
[1] = v0
->v
.y
;
416 for (j
= 2; j
< vertsize
; j
++)
422 /***********************************************************************
423 * Fixup for ARB_point_parameters *
424 ***********************************************************************/
426 /* Currently not working - VERT_ATTRIB_POINTSIZE isn't correctly
427 * represented in the fragment program InputsRead field.
430 intel_atten_point(struct intel_context
*intel
, intelVertexPtr v0
)
432 GLcontext
*ctx
= &intel
->ctx
;
433 GLfloat psz
[4], col
[4], restore_psz
, restore_alpha
;
435 _tnl_get_attr(ctx
, v0
, _TNL_ATTRIB_POINTSIZE
, psz
);
436 _tnl_get_attr(ctx
, v0
, _TNL_ATTRIB_COLOR0
, col
);
438 restore_psz
= psz
[0];
439 restore_alpha
= col
[3];
441 if (psz
[0] >= ctx
->Point
.Threshold
) {
442 psz
[0] = MIN2(psz
[0], ctx
->Point
.MaxSize
);
445 GLfloat dsize
= psz
[0] / ctx
->Point
.Threshold
;
446 psz
[0] = MAX2(ctx
->Point
.Threshold
, ctx
->Point
.MinSize
);
447 col
[3] *= dsize
* dsize
;
453 if (restore_psz
!= psz
[0] || restore_alpha
!= col
[3]) {
454 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_POINTSIZE
, psz
);
455 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_COLOR0
, col
);
457 intel_draw_point(intel
, v0
);
459 psz
[0] = restore_psz
;
460 col
[3] = restore_alpha
;
462 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_POINTSIZE
, psz
);
463 _tnl_set_attr(ctx
, v0
, _TNL_ATTRIB_COLOR0
, col
);
466 intel_draw_point(intel
, v0
);
473 /***********************************************************************
474 * Fixup for I915 WPOS texture coordinate *
475 ***********************************************************************/
480 intel_wpos_triangle(struct intel_context
*intel
,
481 intelVertexPtr v0
, intelVertexPtr v1
, intelVertexPtr v2
)
483 GLuint offset
= intel
->wpos_offset
;
484 GLuint size
= intel
->wpos_size
;
485 GLfloat
*v0_wpos
= (GLfloat
*)((char *)v0
+ offset
);
486 GLfloat
*v1_wpos
= (GLfloat
*)((char *)v1
+ offset
);
487 GLfloat
*v2_wpos
= (GLfloat
*)((char *)v2
+ offset
);
489 __memcpy(v0_wpos
, v0
, size
);
490 __memcpy(v1_wpos
, v1
, size
);
491 __memcpy(v2_wpos
, v2
, size
);
493 v0_wpos
[1] = -v0_wpos
[1] + intel
->driDrawable
->h
;
494 v1_wpos
[1] = -v1_wpos
[1] + intel
->driDrawable
->h
;
495 v2_wpos
[1] = -v2_wpos
[1] + intel
->driDrawable
->h
;
498 intel_draw_triangle(intel
, v0
, v1
, v2
);
503 intel_wpos_line(struct intel_context
*intel
,
504 intelVertexPtr v0
, intelVertexPtr v1
)
506 GLuint offset
= intel
->wpos_offset
;
507 GLuint size
= intel
->wpos_size
;
508 GLfloat
*v0_wpos
= (GLfloat
*)((char *)v0
+ offset
);
509 GLfloat
*v1_wpos
= (GLfloat
*)((char *)v1
+ offset
);
511 __memcpy(v0_wpos
, v0
, size
);
512 __memcpy(v1_wpos
, v1
, size
);
514 v0_wpos
[1] = -v0_wpos
[1] + intel
->driDrawable
->h
;
515 v1_wpos
[1] = -v1_wpos
[1] + intel
->driDrawable
->h
;
517 intel_draw_line(intel
, v0
, v1
);
522 intel_wpos_point(struct intel_context
*intel
, intelVertexPtr v0
)
524 GLuint offset
= intel
->wpos_offset
;
525 GLuint size
= intel
->wpos_size
;
526 GLfloat
*v0_wpos
= (GLfloat
*)((char *)v0
+ offset
);
528 __memcpy(v0_wpos
, v0
, size
);
529 v0_wpos
[1] = -v0_wpos
[1] + intel
->driDrawable
->h
;
531 intel_draw_point(intel
, v0
);
539 /***********************************************************************
540 * Macros for t_dd_tritmp.h to draw basic primitives *
541 ***********************************************************************/
543 #define TRI( a, b, c ) \
546 intel->draw_tri( intel, a, b, c ); \
548 intel_draw_triangle( intel, a, b, c ); \
551 #define QUAD( a, b, c, d ) \
554 intel->draw_tri( intel, a, b, d ); \
555 intel->draw_tri( intel, b, c, d ); \
557 intel_draw_quad( intel, a, b, c, d ); \
560 #define LINE( v0, v1 ) \
563 intel->draw_line( intel, v0, v1 ); \
565 intel_draw_line( intel, v0, v1 ); \
568 #define POINT( v0 ) \
571 intel->draw_point( intel, v0 ); \
573 intel_draw_point( intel, v0 ); \
577 /***********************************************************************
578 * Build render functions from dd templates *
579 ***********************************************************************/
581 #define INTEL_OFFSET_BIT 0x01
582 #define INTEL_TWOSIDE_BIT 0x02
583 #define INTEL_UNFILLED_BIT 0x04
584 #define INTEL_FALLBACK_BIT 0x08
585 #define INTEL_MAX_TRIFUNC 0x10
590 tnl_points_func points
;
592 tnl_triangle_func triangle
;
594 } rast_tab
[INTEL_MAX_TRIFUNC
];
597 #define DO_FALLBACK (IND & INTEL_FALLBACK_BIT)
598 #define DO_OFFSET (IND & INTEL_OFFSET_BIT)
599 #define DO_UNFILLED (IND & INTEL_UNFILLED_BIT)
600 #define DO_TWOSIDE (IND & INTEL_TWOSIDE_BIT)
606 #define DO_FULL_QUAD 1
610 #define HAVE_BACK_COLORS 0
611 #define HAVE_HW_FLATSHADE 1
612 #define VERTEX intelVertex
615 /* Only used to pull back colors into vertices (ie, we know color is
618 #define INTEL_COLOR( dst, src ) \
620 UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \
621 UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \
622 UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \
623 UNCLAMPED_FLOAT_TO_UBYTE((dst)[3], (src)[3]); \
626 #define INTEL_SPEC( dst, src ) \
628 UNCLAMPED_FLOAT_TO_UBYTE((dst)[0], (src)[2]); \
629 UNCLAMPED_FLOAT_TO_UBYTE((dst)[1], (src)[1]); \
630 UNCLAMPED_FLOAT_TO_UBYTE((dst)[2], (src)[0]); \
634 #define DEPTH_SCALE intel->polygon_offset_scale
635 #define UNFILLED_TRI unfilled_tri
636 #define UNFILLED_QUAD unfilled_quad
637 #define VERT_X(_v) _v->v.x
638 #define VERT_Y(_v) _v->v.y
639 #define VERT_Z(_v) _v->v.z
640 #define AREA_IS_CCW( a ) (a > 0)
641 #define GET_VERTEX(e) (intel->verts + (e * intel->vertex_size * sizeof(GLuint)))
643 #define VERT_SET_RGBA( v, c ) if (coloroffset) INTEL_COLOR( v->ub4[coloroffset], c )
644 #define VERT_COPY_RGBA( v0, v1 ) if (coloroffset) v0->ui[coloroffset] = v1->ui[coloroffset]
645 #define VERT_SAVE_RGBA( idx ) if (coloroffset) color[idx] = v[idx]->ui[coloroffset]
646 #define VERT_RESTORE_RGBA( idx ) if (coloroffset) v[idx]->ui[coloroffset] = color[idx]
648 #define VERT_SET_SPEC( v, c ) if (specoffset) INTEL_SPEC( v->ub4[specoffset], c )
649 #define VERT_COPY_SPEC( v0, v1 ) if (specoffset) COPY_3V(v0->ub4[specoffset], v1->ub4[specoffset])
650 #define VERT_SAVE_SPEC( idx ) if (specoffset) spec[idx] = v[idx]->ui[specoffset]
651 #define VERT_RESTORE_SPEC( idx ) if (specoffset) v[idx]->ui[specoffset] = spec[idx]
653 #define LOCAL_VARS(n) \
654 struct intel_context *intel = intel_context(ctx); \
655 GLuint color[n] = { 0, }, spec[n] = { 0, }; \
656 GLuint coloroffset = intel->coloroffset; \
657 GLboolean specoffset = intel->specoffset; \
658 (void) color; (void) spec; (void) coloroffset; (void) specoffset;
661 /***********************************************************************
662 * Helpers for rendering unfilled primitives *
663 ***********************************************************************/
665 static const GLuint hw_prim
[GL_POLYGON
+ 1] = {
678 #define RASTERIZE(x) intelRasterPrimitive( ctx, x, hw_prim[x] )
679 #define RENDER_PRIMITIVE intel->render_primitive
681 #define IND INTEL_FALLBACK_BIT
682 #include "tnl_dd/t_dd_unfilled.h"
685 /***********************************************************************
686 * Generate GL render functions *
687 ***********************************************************************/
691 #include "tnl_dd/t_dd_tritmp.h"
693 #define IND (INTEL_OFFSET_BIT)
694 #define TAG(x) x##_offset
695 #include "tnl_dd/t_dd_tritmp.h"
697 #define IND (INTEL_TWOSIDE_BIT)
698 #define TAG(x) x##_twoside
699 #include "tnl_dd/t_dd_tritmp.h"
701 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT)
702 #define TAG(x) x##_twoside_offset
703 #include "tnl_dd/t_dd_tritmp.h"
705 #define IND (INTEL_UNFILLED_BIT)
706 #define TAG(x) x##_unfilled
707 #include "tnl_dd/t_dd_tritmp.h"
709 #define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
710 #define TAG(x) x##_offset_unfilled
711 #include "tnl_dd/t_dd_tritmp.h"
713 #define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT)
714 #define TAG(x) x##_twoside_unfilled
715 #include "tnl_dd/t_dd_tritmp.h"
717 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT)
718 #define TAG(x) x##_twoside_offset_unfilled
719 #include "tnl_dd/t_dd_tritmp.h"
721 #define IND (INTEL_FALLBACK_BIT)
722 #define TAG(x) x##_fallback
723 #include "tnl_dd/t_dd_tritmp.h"
725 #define IND (INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
726 #define TAG(x) x##_offset_fallback
727 #include "tnl_dd/t_dd_tritmp.h"
729 #define IND (INTEL_TWOSIDE_BIT|INTEL_FALLBACK_BIT)
730 #define TAG(x) x##_twoside_fallback
731 #include "tnl_dd/t_dd_tritmp.h"
733 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_FALLBACK_BIT)
734 #define TAG(x) x##_twoside_offset_fallback
735 #include "tnl_dd/t_dd_tritmp.h"
737 #define IND (INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
738 #define TAG(x) x##_unfilled_fallback
739 #include "tnl_dd/t_dd_tritmp.h"
741 #define IND (INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
742 #define TAG(x) x##_offset_unfilled_fallback
743 #include "tnl_dd/t_dd_tritmp.h"
745 #define IND (INTEL_TWOSIDE_BIT|INTEL_UNFILLED_BIT|INTEL_FALLBACK_BIT)
746 #define TAG(x) x##_twoside_unfilled_fallback
747 #include "tnl_dd/t_dd_tritmp.h"
749 #define IND (INTEL_TWOSIDE_BIT|INTEL_OFFSET_BIT|INTEL_UNFILLED_BIT| \
751 #define TAG(x) x##_twoside_offset_unfilled_fallback
752 #include "tnl_dd/t_dd_tritmp.h"
761 init_twoside_offset();
763 init_offset_unfilled();
764 init_twoside_unfilled();
765 init_twoside_offset_unfilled();
767 init_offset_fallback();
768 init_twoside_fallback();
769 init_twoside_offset_fallback();
770 init_unfilled_fallback();
771 init_offset_unfilled_fallback();
772 init_twoside_unfilled_fallback();
773 init_twoside_offset_unfilled_fallback();
777 /***********************************************************************
778 * Rasterization fallback helpers *
779 ***********************************************************************/
782 /* This code is hit only when a mix of accelerated and unaccelerated
783 * primitives are being drawn, and only for the unaccelerated
787 intel_fallback_tri(struct intel_context
*intel
,
788 intelVertex
* v0
, intelVertex
* v1
, intelVertex
* v2
)
790 GLcontext
*ctx
= &intel
->ctx
;
794 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
796 INTEL_FIREVERTICES(intel
);
798 _swsetup_Translate(ctx
, v0
, &v
[0]);
799 _swsetup_Translate(ctx
, v1
, &v
[1]);
800 _swsetup_Translate(ctx
, v2
, &v
[2]);
801 intelSpanRenderStart(ctx
);
802 _swrast_Triangle(ctx
, &v
[0], &v
[1], &v
[2]);
803 intelSpanRenderFinish(ctx
);
808 intel_fallback_line(struct intel_context
*intel
,
809 intelVertex
* v0
, intelVertex
* v1
)
811 GLcontext
*ctx
= &intel
->ctx
;
815 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
817 INTEL_FIREVERTICES(intel
);
819 _swsetup_Translate(ctx
, v0
, &v
[0]);
820 _swsetup_Translate(ctx
, v1
, &v
[1]);
821 intelSpanRenderStart(ctx
);
822 _swrast_Line(ctx
, &v
[0], &v
[1]);
823 intelSpanRenderFinish(ctx
);
827 intel_fallback_point(struct intel_context
*intel
,
830 GLcontext
*ctx
= &intel
->ctx
;
834 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
836 INTEL_FIREVERTICES(intel
);
838 _swsetup_Translate(ctx
, v0
, &v
[0]);
839 intelSpanRenderStart(ctx
);
840 _swrast_Point(ctx
, &v
[0]);
841 intelSpanRenderFinish(ctx
);
845 /**********************************************************************/
846 /* Render unclipped begin/end objects */
847 /**********************************************************************/
850 #define V(x) (intelVertex *)(vertptr + ((x)*vertsize*sizeof(GLuint)))
851 #define RENDER_POINTS( start, count ) \
852 for ( ; start < count ; start++) POINT( V(ELT(start)) );
853 #define RENDER_LINE( v0, v1 ) LINE( V(v0), V(v1) )
854 #define RENDER_TRI( v0, v1, v2 ) TRI( V(v0), V(v1), V(v2) )
855 #define RENDER_QUAD( v0, v1, v2, v3 ) QUAD( V(v0), V(v1), V(v2), V(v3) )
856 #define INIT(x) intelRenderPrimitive( ctx, x )
859 struct intel_context *intel = intel_context(ctx); \
860 GLubyte *vertptr = (GLubyte *)intel->verts; \
861 const GLuint vertsize = intel->vertex_size; \
862 const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts; \
864 #define RESET_STIPPLE
865 #define RESET_OCCLUSION
866 #define PRESERVE_VB_DEFS
868 #define TAG(x) intel_##x##_verts
869 #include "tnl/t_vb_rendertmp.h"
872 #define TAG(x) intel_##x##_elts
873 #define ELT(x) elt[x]
874 #include "tnl/t_vb_rendertmp.h"
876 /**********************************************************************/
877 /* Render clipped primitives */
878 /**********************************************************************/
883 intelRenderClippedPoly(GLcontext
* ctx
, const GLuint
* elts
, GLuint n
)
885 struct intel_context
*intel
= intel_context(ctx
);
886 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
887 struct vertex_buffer
*VB
= &TNL_CONTEXT(ctx
)->vb
;
888 GLuint prim
= intel
->render_primitive
;
890 /* Render the new vertices as an unclipped polygon.
893 GLuint
*tmp
= VB
->Elts
;
894 VB
->Elts
= (GLuint
*) elts
;
895 tnl
->Driver
.Render
.PrimTabElts
[GL_POLYGON
] (ctx
, 0, n
,
896 PRIM_BEGIN
| PRIM_END
);
900 /* Restore the render primitive
902 if (prim
!= GL_POLYGON
)
903 tnl
->Driver
.Render
.PrimitiveNotify(ctx
, prim
);
907 intelRenderClippedLine(GLcontext
* ctx
, GLuint ii
, GLuint jj
)
909 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
911 tnl
->Driver
.Render
.Line(ctx
, ii
, jj
);
915 intelFastRenderClippedPoly(GLcontext
* ctx
, const GLuint
* elts
, GLuint n
)
917 struct intel_context
*intel
= intel_context(ctx
);
918 const GLuint vertsize
= intel
->vertex_size
;
919 GLuint
*vb
= intel_get_prim_space(intel
, (n
- 2) * 3);
920 GLubyte
*vertptr
= (GLubyte
*) intel
->verts
;
921 const GLuint
*start
= (const GLuint
*) V(elts
[0]);
924 for (i
= 2; i
< n
; i
++) {
925 COPY_DWORDS(j
, vb
, vertsize
, V(elts
[i
- 1]));
926 COPY_DWORDS(j
, vb
, vertsize
, V(elts
[i
]));
927 COPY_DWORDS(j
, vb
, vertsize
, start
);
931 /**********************************************************************/
932 /* Choose render functions */
933 /**********************************************************************/
938 #define ANY_FALLBACK_FLAGS (DD_LINE_STIPPLE | DD_TRI_STIPPLE | DD_POINT_ATTEN | DD_POINT_SMOOTH | DD_TRI_SMOOTH)
939 #define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE | DD_TRI_OFFSET | DD_TRI_UNFILLED)
942 intelChooseRenderState(GLcontext
* ctx
)
944 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
945 struct intel_context
*intel
= intel_context(ctx
);
946 GLuint flags
= ctx
->_TriangleCaps
;
947 const struct gl_fragment_program
*fprog
= ctx
->FragmentProgram
._Current
;
948 GLboolean have_wpos
= (fprog
&& (fprog
->Base
.InputsRead
& FRAG_BIT_WPOS
));
951 if (INTEL_DEBUG
& DEBUG_STATE
)
952 fprintf(stderr
, "\n%s\n", __FUNCTION__
);
954 if ((flags
& (ANY_FALLBACK_FLAGS
| ANY_RASTER_FLAGS
)) || have_wpos
) {
956 if (flags
& ANY_RASTER_FLAGS
) {
957 if (flags
& DD_TRI_LIGHT_TWOSIDE
)
958 index
|= INTEL_TWOSIDE_BIT
;
959 if (flags
& DD_TRI_OFFSET
)
960 index
|= INTEL_OFFSET_BIT
;
961 if (flags
& DD_TRI_UNFILLED
)
962 index
|= INTEL_UNFILLED_BIT
;
966 intel
->draw_point
= intel_wpos_point
;
967 intel
->draw_line
= intel_wpos_line
;
968 intel
->draw_tri
= intel_wpos_triangle
;
970 /* Make sure these get called:
972 index
|= INTEL_FALLBACK_BIT
;
975 intel
->draw_point
= intel_draw_point
;
976 intel
->draw_line
= intel_draw_line
;
977 intel
->draw_tri
= intel_draw_triangle
;
980 /* Hook in fallbacks for specific primitives.
982 if (flags
& ANY_FALLBACK_FLAGS
) {
983 if (flags
& DD_LINE_STIPPLE
)
984 intel
->draw_line
= intel_fallback_line
;
986 if ((flags
& DD_TRI_STIPPLE
) && !intel
->hw_stipple
)
987 intel
->draw_tri
= intel_fallback_tri
;
989 if (flags
& DD_TRI_SMOOTH
) {
990 if (intel
->conformance_mode
> 0)
991 intel
->draw_tri
= intel_fallback_tri
;
994 if (flags
& DD_POINT_ATTEN
) {
996 intel
->draw_point
= intel_atten_point
;
998 intel
->draw_point
= intel_fallback_point
;
1001 if (flags
& DD_POINT_SMOOTH
) {
1002 if (intel
->conformance_mode
> 0)
1003 intel
->draw_point
= intel_fallback_point
;
1006 index
|= INTEL_FALLBACK_BIT
;
1010 if (intel
->RenderIndex
!= index
) {
1011 intel
->RenderIndex
= index
;
1013 tnl
->Driver
.Render
.Points
= rast_tab
[index
].points
;
1014 tnl
->Driver
.Render
.Line
= rast_tab
[index
].line
;
1015 tnl
->Driver
.Render
.Triangle
= rast_tab
[index
].triangle
;
1016 tnl
->Driver
.Render
.Quad
= rast_tab
[index
].quad
;
1019 tnl
->Driver
.Render
.PrimTabVerts
= intel_render_tab_verts
;
1020 tnl
->Driver
.Render
.PrimTabElts
= intel_render_tab_elts
;
1021 tnl
->Driver
.Render
.ClippedLine
= line
; /* from tritmp.h */
1022 tnl
->Driver
.Render
.ClippedPolygon
= intelFastRenderClippedPoly
;
1025 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
1026 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
1027 tnl
->Driver
.Render
.ClippedLine
= intelRenderClippedLine
;
1028 tnl
->Driver
.Render
.ClippedPolygon
= intelRenderClippedPoly
;
1033 static const GLenum reduced_prim
[GL_POLYGON
+ 1] = {
1047 /**********************************************************************/
1048 /* High level hooks for t_vb_render.c */
1049 /**********************************************************************/
1055 intelRunPipeline(GLcontext
* ctx
)
1057 struct intel_context
*intel
= intel_context(ctx
);
1059 _mesa_lock_context_textures(ctx
);
1062 _mesa_update_state_locked(ctx
);
1064 if (intel
->NewGLState
) {
1065 if (intel
->NewGLState
& _NEW_TEXTURE
) {
1066 intel
->vtbl
.update_texture_state(intel
);
1069 if (!intel
->Fallback
) {
1070 if (intel
->NewGLState
& _INTEL_NEW_RENDERSTATE
)
1071 intelChooseRenderState(ctx
);
1074 intel
->NewGLState
= 0;
1077 intel_map_vertex_shader_textures(ctx
);
1078 _tnl_run_pipeline(ctx
);
1079 intel_unmap_vertex_shader_textures(ctx
);
1081 _mesa_unlock_context_textures(ctx
);
1085 intelRenderStart(GLcontext
* ctx
)
1087 struct intel_context
*intel
= intel_context(ctx
);
1089 intel_check_front_buffer_rendering(intel
);
1090 intel
->vtbl
.render_start(intel_context(ctx
));
1091 intel
->vtbl
.emit_state(intel
);
1095 intelRenderFinish(GLcontext
* ctx
)
1097 struct intel_context
*intel
= intel_context(ctx
);
1099 if (intel
->RenderIndex
& INTEL_FALLBACK_BIT
)
1102 INTEL_FIREVERTICES(intel
);
1108 /* System to flush dma and emit state changes based on the rasterized
1112 intelRasterPrimitive(GLcontext
* ctx
, GLenum rprim
, GLuint hwprim
)
1114 struct intel_context
*intel
= intel_context(ctx
);
1117 fprintf(stderr
, "%s %s %x\n", __FUNCTION__
,
1118 _mesa_lookup_enum_by_nr(rprim
), hwprim
);
1120 intel
->vtbl
.reduced_primitive_state(intel
, rprim
);
1122 /* Start a new primitive. Arrange to have it flushed later on.
1124 if (hwprim
!= intel
->prim
.primitive
) {
1125 INTEL_FIREVERTICES(intel
);
1127 intel_set_prim(intel
, hwprim
);
1135 intelRenderPrimitive(GLcontext
* ctx
, GLenum prim
)
1137 struct intel_context
*intel
= intel_context(ctx
);
1140 fprintf(stderr
, "%s %s\n", __FUNCTION__
, _mesa_lookup_enum_by_nr(prim
));
1142 /* Let some clipping routines know which primitive they're dealing
1145 intel
->render_primitive
= prim
;
1147 /* Shortcircuit this when called from t_dd_rendertmp.h for unfilled
1148 * triangles. The rasterized primitive will always be reset by
1149 * lower level functions in that case, potentially pingponging the
1152 if (reduced_prim
[prim
] == GL_TRIANGLES
&&
1153 (ctx
->_TriangleCaps
& DD_TRI_UNFILLED
))
1156 /* Set some primitive-dependent state and Start? a new primitive.
1158 intelRasterPrimitive(ctx
, reduced_prim
[prim
], hw_prim
[prim
]);
1162 /**********************************************************************/
1163 /* Transition to/from hardware rasterization. */
1164 /**********************************************************************/
1166 static char *fallbackStrings
[] = {
1167 [0] = "Draw buffer",
1168 [1] = "Read buffer",
1169 [2] = "Depth buffer",
1170 [3] = "Stencil buffer",
1171 [4] = "User disable",
1172 [5] = "Render mode",
1175 [13] = "Color mask",
1180 [18] = "Smooth polygon",
1181 [19] = "Smooth point",
1186 getFallbackString(GLuint bit
)
1193 return fallbackStrings
[i
];
1199 * Enable/disable a fallback flag.
1200 * \param bit one of INTEL_FALLBACK_x flags.
1203 intelFallback(struct intel_context
*intel
, GLbitfield bit
, GLboolean mode
)
1205 GLcontext
*ctx
= &intel
->ctx
;
1206 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
1207 const GLbitfield oldfallback
= intel
->Fallback
;
1210 intel
->Fallback
|= bit
;
1211 if (oldfallback
== 0) {
1213 if (INTEL_DEBUG
& DEBUG_FALLBACKS
)
1214 fprintf(stderr
, "ENTER FALLBACK %x: %s\n",
1215 bit
, getFallbackString(bit
));
1216 _swsetup_Wakeup(ctx
);
1217 intel
->RenderIndex
= ~0;
1221 intel
->Fallback
&= ~bit
;
1222 if (oldfallback
== bit
) {
1224 if (INTEL_DEBUG
& DEBUG_FALLBACKS
)
1225 fprintf(stderr
, "LEAVE FALLBACK %s\n", getFallbackString(bit
));
1226 tnl
->Driver
.Render
.Start
= intelRenderStart
;
1227 tnl
->Driver
.Render
.PrimitiveNotify
= intelRenderPrimitive
;
1228 tnl
->Driver
.Render
.Finish
= intelRenderFinish
;
1229 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
1230 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
1231 tnl
->Driver
.Render
.Interp
= _tnl_interp
;
1233 _tnl_invalidate_vertex_state(ctx
, ~0);
1234 _tnl_invalidate_vertices(ctx
, ~0);
1235 _tnl_install_attrs(ctx
,
1236 intel
->vertex_attrs
,
1237 intel
->vertex_attr_count
,
1238 intel
->ViewportMatrix
.m
, 0);
1240 intel
->NewGLState
|= _INTEL_NEW_RENDERSTATE
;
1251 /**********************************************************************/
1252 /* Initialization. */
1253 /**********************************************************************/
1257 intelInitTriFuncs(GLcontext
* ctx
)
1259 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
1260 static int firsttime
= 1;
1267 tnl
->Driver
.RunPipeline
= intelRunPipeline
;
1268 tnl
->Driver
.Render
.Start
= intelRenderStart
;
1269 tnl
->Driver
.Render
.Finish
= intelRenderFinish
;
1270 tnl
->Driver
.Render
.PrimitiveNotify
= intelRenderPrimitive
;
1271 tnl
->Driver
.Render
.ResetLineStipple
= _swrast_ResetLineStipple
;
1272 tnl
->Driver
.Render
.BuildVertices
= _tnl_build_vertices
;
1273 tnl
->Driver
.Render
.CopyPV
= _tnl_copy_pv
;
1274 tnl
->Driver
.Render
.Interp
= _tnl_interp
;