1 /**************************************************************************
3 * Copyright 2007 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 **************************************************************************/
31 * Builds per-tile display lists and executes them on calls to
35 #include "pipe/p_defines.h"
36 #include "pipe/p_inlines.h"
37 #include "util/u_memory.h"
38 #include "util/u_pack_color.h"
39 #include "util/u_surface.h"
41 #include "lp_scene_queue.h"
42 #include "lp_buffer.h"
43 #include "lp_texture.h"
47 #include "lp_setup_context.h"
49 #include "draw/draw_context.h"
50 #include "draw/draw_vbuf.h"
53 static void set_scene_state( struct setup_context
*, unsigned );
57 lp_setup_get_current_scene(struct setup_context
*setup
)
60 /* wait for a free/empty bin */
61 setup
->scene
= lp_scene_dequeue(setup
->empty_scenes
);
62 if(0)lp_scene_reset( setup
->scene
); /* XXX temporary? */
64 lp_scene_set_framebuffer_size(setup
->scene
,
73 first_triangle( struct setup_context
*setup
,
78 set_scene_state( setup
, SETUP_ACTIVE
);
79 lp_setup_choose_triangle( setup
);
80 setup
->triangle( setup
, v0
, v1
, v2
);
84 first_line( struct setup_context
*setup
,
88 set_scene_state( setup
, SETUP_ACTIVE
);
89 lp_setup_choose_line( setup
);
90 setup
->line( setup
, v0
, v1
);
94 first_point( struct setup_context
*setup
,
97 set_scene_state( setup
, SETUP_ACTIVE
);
98 lp_setup_choose_point( setup
);
99 setup
->point( setup
, v0
);
102 static void reset_context( struct setup_context
*setup
)
104 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
106 /* Reset derived state */
107 setup
->constants
.stored_size
= 0;
108 setup
->constants
.stored_data
= NULL
;
109 setup
->fs
.stored
= NULL
;
117 setup
->clear
.flags
= 0;
119 /* Have an explicit "start-binning" call and get rid of this
122 setup
->line
= first_line
;
123 setup
->point
= first_point
;
124 setup
->triangle
= first_triangle
;
128 /** Rasterize all scene's bins */
130 lp_setup_rasterize_scene( struct setup_context
*setup
,
131 boolean write_depth
)
133 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
135 lp_rasterize_scene(setup
->rast
,
140 reset_context( setup
);
142 LP_DBG(DEBUG_SETUP
, "%s done \n", __FUNCTION__
);
148 begin_binning( struct setup_context
*setup
)
150 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
152 LP_DBG(DEBUG_SETUP
, "%s color: %s depth: %s\n", __FUNCTION__
,
153 (setup
->clear
.flags
& PIPE_CLEAR_COLOR
) ? "clear": "load",
154 (setup
->clear
.flags
& PIPE_CLEAR_DEPTHSTENCIL
) ? "clear": "load");
156 if (setup
->fb
.nr_cbufs
) {
157 if (setup
->clear
.flags
& PIPE_CLEAR_COLOR
)
158 lp_scene_bin_everywhere( scene
,
160 setup
->clear
.color
);
162 lp_scene_bin_everywhere( scene
,
164 lp_rast_arg_null() );
167 if (setup
->fb
.zsbuf
) {
168 if (setup
->clear
.flags
& PIPE_CLEAR_DEPTHSTENCIL
)
169 lp_scene_bin_everywhere( scene
,
170 lp_rast_clear_zstencil
,
171 setup
->clear
.zstencil
);
173 lp_scene_bin_everywhere( scene
,
174 lp_rast_load_zstencil
,
175 lp_rast_arg_null() );
178 LP_DBG(DEBUG_SETUP
, "%s done\n", __FUNCTION__
);
182 /* This basically bins and then flushes any outstanding full-screen
185 * TODO: fast path for fullscreen clears and no triangles.
188 execute_clears( struct setup_context
*setup
)
190 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
192 begin_binning( setup
);
193 lp_setup_rasterize_scene( setup
, TRUE
);
198 set_scene_state( struct setup_context
*setup
,
201 unsigned old_state
= setup
->state
;
203 if (old_state
== new_state
)
206 LP_DBG(DEBUG_SETUP
, "%s old %d new %d\n", __FUNCTION__
, old_state
, new_state
);
210 begin_binning( setup
);
214 if (old_state
== SETUP_ACTIVE
) {
221 if (old_state
== SETUP_CLEARED
)
222 execute_clears( setup
);
224 lp_setup_rasterize_scene( setup
, TRUE
);
228 setup
->state
= new_state
;
233 lp_setup_flush( struct setup_context
*setup
,
236 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
238 set_scene_state( setup
, SETUP_FLUSHED
);
243 lp_setup_bind_framebuffer( struct setup_context
*setup
,
244 const struct pipe_framebuffer_state
*fb
)
246 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
248 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
250 set_scene_state( setup
, SETUP_FLUSHED
);
252 util_copy_framebuffer_state(&setup
->fb
, fb
);
254 lp_scene_set_framebuffer_size(scene
, setup
->fb
.width
, setup
->fb
.height
);
259 lp_setup_clear( struct setup_context
*setup
,
265 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
268 LP_DBG(DEBUG_SETUP
, "%s state %d\n", __FUNCTION__
, setup
->state
);
271 if (flags
& PIPE_CLEAR_COLOR
) {
272 for (i
= 0; i
< 4; ++i
)
273 setup
->clear
.color
.clear_color
[i
] = float_to_ubyte(color
[i
]);
276 if (flags
& PIPE_CLEAR_DEPTHSTENCIL
) {
277 setup
->clear
.zstencil
.clear_zstencil
=
278 util_pack_z_stencil(setup
->fb
.zsbuf
->format
,
283 if (setup
->state
== SETUP_ACTIVE
) {
284 /* Add the clear to existing scene. In the unusual case where
285 * both color and depth-stencil are being cleared when there's
286 * already been some rendering, we could discard the currently
287 * binned scene and start again, but I don't see that as being
290 if (flags
& PIPE_CLEAR_COLOR
)
291 lp_scene_bin_everywhere( scene
,
293 setup
->clear
.color
);
295 if (setup
->clear
.flags
& PIPE_CLEAR_DEPTHSTENCIL
)
296 lp_scene_bin_everywhere( scene
,
297 lp_rast_clear_zstencil
,
298 setup
->clear
.zstencil
);
301 /* Put ourselves into the 'pre-clear' state, specifically to try
302 * and accumulate multiple clears to color and depth_stencil
303 * buffers which the app or state-tracker might issue
306 set_scene_state( setup
, SETUP_CLEARED
);
308 setup
->clear
.flags
|= flags
;
316 struct pipe_fence_handle
*
317 lp_setup_fence( struct setup_context
*setup
)
319 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
320 const unsigned rank
= lp_scene_get_num_bins( scene
); /* xxx */
321 struct lp_fence
*fence
= lp_fence_create(rank
);
323 LP_DBG(DEBUG_SETUP
, "%s rank %u\n", __FUNCTION__
, rank
);
325 set_scene_state( setup
, SETUP_ACTIVE
);
327 /* insert the fence into all command bins */
328 lp_scene_bin_everywhere( scene
,
330 lp_rast_arg_fence(fence
) );
332 return (struct pipe_fence_handle
*) fence
;
337 lp_setup_set_triangle_state( struct setup_context
*setup
,
339 boolean ccw_is_frontface
)
341 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
343 setup
->ccw_is_frontface
= ccw_is_frontface
;
344 setup
->cullmode
= cull_mode
;
345 setup
->triangle
= first_triangle
;
351 lp_setup_set_fs_inputs( struct setup_context
*setup
,
352 const struct lp_shader_input
*input
,
355 LP_DBG(DEBUG_SETUP
, "%s %p %u\n", __FUNCTION__
, (void *) input
, nr
);
357 memcpy( setup
->fs
.input
, input
, nr
* sizeof input
[0] );
358 setup
->fs
.nr_inputs
= nr
;
362 lp_setup_set_fs_function( struct setup_context
*setup
,
363 lp_jit_frag_func jit_function
,
366 LP_DBG(DEBUG_SETUP
, "%s %p\n", __FUNCTION__
, (void *) jit_function
);
367 /* FIXME: reference count */
369 setup
->fs
.current
.jit_function
= jit_function
;
370 setup
->fs
.current
.opaque
= opaque
;
371 setup
->dirty
|= LP_SETUP_NEW_FS
;
375 lp_setup_set_fs_constants(struct setup_context
*setup
,
376 struct pipe_buffer
*buffer
)
378 LP_DBG(DEBUG_SETUP
, "%s %p\n", __FUNCTION__
, (void *) buffer
);
380 pipe_buffer_reference(&setup
->constants
.current
, buffer
);
382 setup
->dirty
|= LP_SETUP_NEW_CONSTANTS
;
387 lp_setup_set_alpha_ref_value( struct setup_context
*setup
,
388 float alpha_ref_value
)
390 LP_DBG(DEBUG_SETUP
, "%s %f\n", __FUNCTION__
, alpha_ref_value
);
392 if(setup
->fs
.current
.jit_context
.alpha_ref_value
!= alpha_ref_value
) {
393 setup
->fs
.current
.jit_context
.alpha_ref_value
= alpha_ref_value
;
394 setup
->dirty
|= LP_SETUP_NEW_FS
;
399 lp_setup_set_blend_color( struct setup_context
*setup
,
400 const struct pipe_blend_color
*blend_color
)
402 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
406 if(memcmp(&setup
->blend_color
.current
, blend_color
, sizeof *blend_color
) != 0) {
407 memcpy(&setup
->blend_color
.current
, blend_color
, sizeof *blend_color
);
408 setup
->dirty
|= LP_SETUP_NEW_BLEND_COLOR
;
414 lp_setup_set_flatshade_first( struct setup_context
*setup
,
415 boolean flatshade_first
)
417 setup
->flatshade_first
= flatshade_first
;
422 lp_setup_set_vertex_info( struct setup_context
*setup
,
423 struct vertex_info
*vertex_info
)
425 /* XXX: just silently holding onto the pointer:
427 setup
->vertex_info
= vertex_info
;
432 * Called during state validation when LP_NEW_TEXTURE is set.
435 lp_setup_set_sampler_textures( struct setup_context
*setup
,
436 unsigned num
, struct pipe_texture
**texture
)
440 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
442 assert(num
<= PIPE_MAX_SAMPLERS
);
444 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++) {
445 struct pipe_texture
*tex
= i
< num
? texture
[i
] : NULL
;
448 struct llvmpipe_texture
*lp_tex
= llvmpipe_texture(tex
);
449 struct lp_jit_texture
*jit_tex
;
450 jit_tex
= &setup
->fs
.current
.jit_context
.textures
[i
];
451 jit_tex
->width
= tex
->width0
;
452 jit_tex
->height
= tex
->height0
;
453 jit_tex
->stride
= lp_tex
->stride
[0];
455 jit_tex
->data
= lp_tex
->data
;
457 /* FIXME: map the rendertarget */
460 /* the scene references this texture */
462 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
463 lp_scene_texture_reference(scene
, tex
);
468 setup
->dirty
|= LP_SETUP_NEW_FS
;
473 * Is the given texture referenced by any scene?
474 * Note: we have to check all scenes including any scenes currently
475 * being rendered and the current scene being built.
478 lp_setup_is_texture_referenced( const struct setup_context
*setup
,
479 const struct pipe_texture
*texture
)
482 for (i
= 0; i
< Elements(setup
->scenes
); i
++) {
483 if (lp_scene_is_textured_referenced(setup
->scenes
[i
], texture
)) {
484 return PIPE_REFERENCED_FOR_READ
;
487 return PIPE_UNREFERENCED
;
492 * Called by vbuf code when we're about to draw something.
495 lp_setup_update_state( struct setup_context
*setup
)
497 struct lp_scene
*scene
= lp_setup_get_current_scene(setup
);
499 LP_DBG(DEBUG_SETUP
, "%s\n", __FUNCTION__
);
501 assert(setup
->fs
.current
.jit_function
);
503 if(setup
->dirty
& LP_SETUP_NEW_BLEND_COLOR
) {
507 stored
= lp_scene_alloc_aligned(scene
, 4 * 16, 16);
509 /* smear each blend color component across 16 ubyte elements */
510 for (i
= 0; i
< 4; ++i
) {
511 uint8_t c
= float_to_ubyte(setup
->blend_color
.current
.color
[i
]);
512 for (j
= 0; j
< 16; ++j
)
513 stored
[i
*16 + j
] = c
;
516 setup
->blend_color
.stored
= stored
;
518 setup
->fs
.current
.jit_context
.blend_color
= setup
->blend_color
.stored
;
519 setup
->dirty
|= LP_SETUP_NEW_FS
;
523 if(setup
->dirty
& LP_SETUP_NEW_CONSTANTS
) {
524 struct pipe_buffer
*buffer
= setup
->constants
.current
;
527 unsigned current_size
= buffer
->size
;
528 const void *current_data
= llvmpipe_buffer(buffer
)->data
;
530 /* TODO: copy only the actually used constants? */
532 if(setup
->constants
.stored_size
!= current_size
||
533 !setup
->constants
.stored_data
||
534 memcmp(setup
->constants
.stored_data
,
536 current_size
) != 0) {
539 stored
= lp_scene_alloc(scene
, current_size
);
544 setup
->constants
.stored_size
= current_size
;
545 setup
->constants
.stored_data
= stored
;
550 setup
->constants
.stored_size
= 0;
551 setup
->constants
.stored_data
= NULL
;
554 setup
->fs
.current
.jit_context
.constants
= setup
->constants
.stored_data
;
555 setup
->dirty
|= LP_SETUP_NEW_FS
;
559 if(setup
->dirty
& LP_SETUP_NEW_FS
) {
560 if(!setup
->fs
.stored
||
561 memcmp(setup
->fs
.stored
,
563 sizeof setup
->fs
.current
) != 0) {
564 /* The fs state that's been stored in the scene is different from
565 * the new, current state. So allocate a new lp_rast_state object
566 * and append it to the bin's setup data buffer.
568 struct lp_rast_state
*stored
=
569 (struct lp_rast_state
*) lp_scene_alloc(scene
, sizeof *stored
);
573 sizeof setup
->fs
.current
);
574 setup
->fs
.stored
= stored
;
576 /* put the state-set command into all bins */
577 lp_scene_bin_state_command( scene
,
579 lp_rast_arg_state(setup
->fs
.stored
) );
586 assert(setup
->fs
.stored
);
591 /* Only caller is lp_setup_vbuf_destroy()
594 lp_setup_destroy( struct setup_context
*setup
)
596 reset_context( setup
);
598 pipe_buffer_reference(&setup
->constants
.current
, NULL
);
600 /* free the scenes in the 'empty' queue */
601 while (lp_scene_queue_count(setup
->empty_scenes
) > 0) {
602 struct lp_scene
*scene
= lp_scene_dequeue(setup
->empty_scenes
);
605 lp_scene_destroy(scene
);
608 lp_rast_destroy( setup
->rast
);
615 * Create a new primitive tiling engine. Plug it into the backend of
616 * the draw module. Currently also creates a rasterizer to use with
619 struct setup_context
*
620 lp_setup_create( struct pipe_screen
*screen
,
621 struct draw_context
*draw
)
624 struct setup_context
*setup
= CALLOC_STRUCT(setup_context
);
629 lp_setup_init_vbuf(setup
);
631 setup
->empty_scenes
= lp_scene_queue_create();
632 if (!setup
->empty_scenes
)
635 setup
->rast
= lp_rast_create( screen
, setup
->empty_scenes
);
639 setup
->vbuf
= draw_vbuf_stage(draw
, &setup
->base
);
643 draw_set_rasterize_stage(draw
, setup
->vbuf
);
644 draw_set_render(draw
, &setup
->base
);
646 /* create some empty scenes */
647 for (i
= 0; i
< MAX_SCENES
; i
++) {
648 setup
->scenes
[i
] = lp_scene_create();
649 lp_scene_enqueue(setup
->empty_scenes
, setup
->scenes
[i
]);
652 setup
->triangle
= first_triangle
;
653 setup
->line
= first_line
;
654 setup
->point
= first_point
;
662 lp_rast_destroy( setup
->rast
);
667 if (setup
->empty_scenes
)
668 lp_scene_queue_destroy(setup
->empty_scenes
);