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 **************************************************************************/
28 /* Authors: Keith Whitwell <keith@tungstengraphics.com>
32 #include "draw/draw_context.h"
33 #include "util/u_inlines.h"
34 #include "util/u_math.h"
35 #include "util/u_memory.h"
36 #include "util/u_transfer.h"
37 #include "tgsi/tgsi_parse.h"
39 #include "i915_context.h"
41 #include "i915_state_inlines.h"
43 #include "i915_resource.h"
45 /* The i915 (and related graphics cores) do not support GL_CLAMP. The
46 * Intel drivers for "other operating systems" implement GL_CLAMP as
47 * GL_CLAMP_TO_EDGE, so the same is done here.
50 translate_wrap_mode(unsigned wrap
)
53 case PIPE_TEX_WRAP_REPEAT
:
54 return TEXCOORDMODE_WRAP
;
55 case PIPE_TEX_WRAP_CLAMP
:
56 return TEXCOORDMODE_CLAMP_EDGE
; /* not quite correct */
57 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
58 return TEXCOORDMODE_CLAMP_EDGE
;
59 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
60 return TEXCOORDMODE_CLAMP_BORDER
;
61 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
62 return TEXCOORDMODE_MIRROR
;
64 return TEXCOORDMODE_WRAP
;
68 static unsigned translate_img_filter( unsigned filter
)
71 case PIPE_TEX_FILTER_NEAREST
:
72 return FILTER_NEAREST
;
73 case PIPE_TEX_FILTER_LINEAR
:
77 return FILTER_NEAREST
;
81 static unsigned translate_mip_filter( unsigned filter
)
84 case PIPE_TEX_MIPFILTER_NONE
:
85 return MIPFILTER_NONE
;
86 case PIPE_TEX_MIPFILTER_NEAREST
:
87 return MIPFILTER_NEAREST
;
88 case PIPE_TEX_MIPFILTER_LINEAR
:
89 return MIPFILTER_LINEAR
;
92 return MIPFILTER_NONE
;
97 /* None of this state is actually used for anything yet.
100 i915_create_blend_state(struct pipe_context
*pipe
,
101 const struct pipe_blend_state
*blend
)
103 struct i915_blend_state
*cso_data
= CALLOC_STRUCT( i915_blend_state
);
106 unsigned eqRGB
= blend
->rt
[0].rgb_func
;
107 unsigned srcRGB
= blend
->rt
[0].rgb_src_factor
;
108 unsigned dstRGB
= blend
->rt
[0].rgb_dst_factor
;
110 unsigned eqA
= blend
->rt
[0].alpha_func
;
111 unsigned srcA
= blend
->rt
[0].alpha_src_factor
;
112 unsigned dstA
= blend
->rt
[0].alpha_dst_factor
;
114 /* Special handling for MIN/MAX filter modes handled at
115 * state_tracker level.
118 if (srcA
!= srcRGB
||
122 cso_data
->iab
= (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
|
126 IAB_MODIFY_SRC_FACTOR
|
127 IAB_MODIFY_DST_FACTOR
|
128 SRC_ABLND_FACT(i915_translate_blend_factor(srcA
)) |
129 DST_ABLND_FACT(i915_translate_blend_factor(dstA
)) |
130 (i915_translate_blend_func(eqA
) << IAB_FUNC_SHIFT
));
133 cso_data
->iab
= (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
|
139 cso_data
->modes4
|= (_3DSTATE_MODES_4_CMD
|
140 ENABLE_LOGIC_OP_FUNC
|
141 LOGIC_OP_FUNC(i915_translate_logic_op(blend
->logicop_func
)));
143 if (blend
->logicop_enable
)
144 cso_data
->LIS5
|= S5_LOGICOP_ENABLE
;
147 cso_data
->LIS5
|= S5_COLOR_DITHER_ENABLE
;
149 if ((blend
->rt
[0].colormask
& PIPE_MASK_R
) == 0)
150 cso_data
->LIS5
|= S5_WRITEDISABLE_RED
;
152 if ((blend
->rt
[0].colormask
& PIPE_MASK_G
) == 0)
153 cso_data
->LIS5
|= S5_WRITEDISABLE_GREEN
;
155 if ((blend
->rt
[0].colormask
& PIPE_MASK_B
) == 0)
156 cso_data
->LIS5
|= S5_WRITEDISABLE_BLUE
;
158 if ((blend
->rt
[0].colormask
& PIPE_MASK_A
) == 0)
159 cso_data
->LIS5
|= S5_WRITEDISABLE_ALPHA
;
161 if (blend
->rt
[0].blend_enable
) {
162 unsigned funcRGB
= blend
->rt
[0].rgb_func
;
163 unsigned srcRGB
= blend
->rt
[0].rgb_src_factor
;
164 unsigned dstRGB
= blend
->rt
[0].rgb_dst_factor
;
166 cso_data
->LIS6
|= (S6_CBUF_BLEND_ENABLE
|
167 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB
)) |
168 DST_BLND_FACT(i915_translate_blend_factor(dstRGB
)) |
169 (i915_translate_blend_func(funcRGB
) << S6_CBUF_BLEND_FUNC_SHIFT
));
175 static void i915_bind_blend_state(struct pipe_context
*pipe
,
178 struct i915_context
*i915
= i915_context(pipe
);
179 draw_flush(i915
->draw
);
181 i915
->blend
= (struct i915_blend_state
*)blend
;
183 i915
->dirty
|= I915_NEW_BLEND
;
187 static void i915_delete_blend_state(struct pipe_context
*pipe
, void *blend
)
192 static void i915_set_blend_color( struct pipe_context
*pipe
,
193 const struct pipe_blend_color
*blend_color
)
195 struct i915_context
*i915
= i915_context(pipe
);
196 draw_flush(i915
->draw
);
198 i915
->blend_color
= *blend_color
;
200 i915
->dirty
|= I915_NEW_BLEND
;
203 static void i915_set_stencil_ref( struct pipe_context
*pipe
,
204 const struct pipe_stencil_ref
*stencil_ref
)
206 struct i915_context
*i915
= i915_context(pipe
);
207 draw_flush(i915
->draw
);
209 i915
->stencil_ref
= *stencil_ref
;
211 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
215 i915_create_sampler_state(struct pipe_context
*pipe
,
216 const struct pipe_sampler_state
*sampler
)
218 struct i915_sampler_state
*cso
= CALLOC_STRUCT( i915_sampler_state
);
219 const unsigned ws
= sampler
->wrap_s
;
220 const unsigned wt
= sampler
->wrap_t
;
221 const unsigned wr
= sampler
->wrap_r
;
222 unsigned minFilt
, magFilt
;
225 cso
->templ
= sampler
;
227 mipFilt
= translate_mip_filter(sampler
->min_mip_filter
);
228 minFilt
= translate_img_filter( sampler
->min_img_filter
);
229 magFilt
= translate_img_filter( sampler
->mag_img_filter
);
231 if (sampler
->max_anisotropy
> 1)
232 minFilt
= magFilt
= FILTER_ANISOTROPIC
;
234 if (sampler
->max_anisotropy
> 2) {
235 cso
->state
[0] |= SS2_MAX_ANISO_4
;
239 int b
= (int) (sampler
->lod_bias
* 16.0);
240 b
= CLAMP(b
, -256, 255);
241 cso
->state
[0] |= ((b
<< SS2_LOD_BIAS_SHIFT
) & SS2_LOD_BIAS_MASK
);
246 if (sampler
->compare_mode
== PIPE_TEX_COMPARE_R_TO_TEXTURE
)
248 cso
->state
[0] |= (SS2_SHADOW_ENABLE
|
249 i915_translate_compare_func(sampler
->compare_func
));
251 minFilt
= FILTER_4X4_FLAT
;
252 magFilt
= FILTER_4X4_FLAT
;
255 cso
->state
[0] |= ((minFilt
<< SS2_MIN_FILTER_SHIFT
) |
256 (mipFilt
<< SS2_MIP_FILTER_SHIFT
) |
257 (magFilt
<< SS2_MAG_FILTER_SHIFT
));
260 ((translate_wrap_mode(ws
) << SS3_TCX_ADDR_MODE_SHIFT
) |
261 (translate_wrap_mode(wt
) << SS3_TCY_ADDR_MODE_SHIFT
) |
262 (translate_wrap_mode(wr
) << SS3_TCZ_ADDR_MODE_SHIFT
));
264 if (sampler
->normalized_coords
)
265 cso
->state
[1] |= SS3_NORMALIZED_COORDS
;
268 int minlod
= (int) (16.0 * sampler
->min_lod
);
269 int maxlod
= (int) (16.0 * sampler
->max_lod
);
270 minlod
= CLAMP(minlod
, 0, 16 * 11);
271 maxlod
= CLAMP(maxlod
, 0, 16 * 11);
276 cso
->minlod
= minlod
;
277 cso
->maxlod
= maxlod
;
281 ubyte r
= float_to_ubyte(sampler
->border_color
[0]);
282 ubyte g
= float_to_ubyte(sampler
->border_color
[1]);
283 ubyte b
= float_to_ubyte(sampler
->border_color
[2]);
284 ubyte a
= float_to_ubyte(sampler
->border_color
[3]);
285 cso
->state
[2] = I915PACKCOLOR8888(r
, g
, b
, a
);
290 static void i915_bind_sampler_states(struct pipe_context
*pipe
,
291 unsigned num
, void **sampler
)
293 struct i915_context
*i915
= i915_context(pipe
);
296 /* Check for no-op */
297 if (num
== i915
->num_samplers
&&
298 !memcmp(i915
->sampler
, sampler
, num
* sizeof(void *)))
301 draw_flush(i915
->draw
);
303 for (i
= 0; i
< num
; ++i
)
304 i915
->sampler
[i
] = sampler
[i
];
305 for (i
= num
; i
< PIPE_MAX_SAMPLERS
; ++i
)
306 i915
->sampler
[i
] = NULL
;
308 i915
->num_samplers
= num
;
310 i915
->dirty
|= I915_NEW_SAMPLER
;
313 static void i915_delete_sampler_state(struct pipe_context
*pipe
,
320 /** XXX move someday? Or consolidate all these simple state setters
325 i915_create_depth_stencil_state(struct pipe_context
*pipe
,
326 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
328 struct i915_depth_stencil_state
*cso
= CALLOC_STRUCT( i915_depth_stencil_state
);
331 int testmask
= depth_stencil
->stencil
[0].valuemask
& 0xff;
332 int writemask
= depth_stencil
->stencil
[0].writemask
& 0xff;
334 cso
->stencil_modes4
|= (_3DSTATE_MODES_4_CMD
|
335 ENABLE_STENCIL_TEST_MASK
|
336 STENCIL_TEST_MASK(testmask
) |
337 ENABLE_STENCIL_WRITE_MASK
|
338 STENCIL_WRITE_MASK(writemask
));
341 if (depth_stencil
->stencil
[0].enabled
) {
342 int test
= i915_translate_compare_func(depth_stencil
->stencil
[0].func
);
343 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].fail_op
);
344 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zfail_op
);
345 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zpass_op
);
347 cso
->stencil_LIS5
|= (S5_STENCIL_TEST_ENABLE
|
348 S5_STENCIL_WRITE_ENABLE
|
349 (test
<< S5_STENCIL_TEST_FUNC_SHIFT
) |
350 (fop
<< S5_STENCIL_FAIL_SHIFT
) |
351 (dfop
<< S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
352 (dpop
<< S5_STENCIL_PASS_Z_PASS_SHIFT
));
355 if (depth_stencil
->stencil
[1].enabled
) {
356 int test
= i915_translate_compare_func(depth_stencil
->stencil
[1].func
);
357 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].fail_op
);
358 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zfail_op
);
359 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zpass_op
);
360 int tmask
= depth_stencil
->stencil
[1].valuemask
& 0xff;
361 int wmask
= depth_stencil
->stencil
[1].writemask
& 0xff;
363 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
364 BFO_ENABLE_STENCIL_FUNCS
|
365 BFO_ENABLE_STENCIL_TWO_SIDE
|
366 BFO_ENABLE_STENCIL_REF
|
367 BFO_STENCIL_TWO_SIDE
|
368 (test
<< BFO_STENCIL_TEST_SHIFT
) |
369 (fop
<< BFO_STENCIL_FAIL_SHIFT
) |
370 (dfop
<< BFO_STENCIL_PASS_Z_FAIL_SHIFT
) |
371 (dpop
<< BFO_STENCIL_PASS_Z_PASS_SHIFT
));
373 cso
->bfo
[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS
|
374 BFM_ENABLE_STENCIL_TEST_MASK
|
375 BFM_ENABLE_STENCIL_WRITE_MASK
|
376 (tmask
<< BFM_STENCIL_TEST_MASK_SHIFT
) |
377 (wmask
<< BFM_STENCIL_WRITE_MASK_SHIFT
));
380 /* This actually disables two-side stencil: The bit set is a
381 * modify-enable bit to indicate we are changing the two-side
382 * setting. Then there is a symbolic zero to show that we are
383 * setting the flag to zero/off.
385 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
386 BFO_ENABLE_STENCIL_TWO_SIDE
|
391 if (depth_stencil
->depth
.enabled
) {
392 int func
= i915_translate_compare_func(depth_stencil
->depth
.func
);
394 cso
->depth_LIS6
|= (S6_DEPTH_TEST_ENABLE
|
395 (func
<< S6_DEPTH_TEST_FUNC_SHIFT
));
397 if (depth_stencil
->depth
.writemask
)
398 cso
->depth_LIS6
|= S6_DEPTH_WRITE_ENABLE
;
401 if (depth_stencil
->alpha
.enabled
) {
402 int test
= i915_translate_compare_func(depth_stencil
->alpha
.func
);
403 ubyte refByte
= float_to_ubyte(depth_stencil
->alpha
.ref_value
);
405 cso
->depth_LIS6
|= (S6_ALPHA_TEST_ENABLE
|
406 (test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
407 (((unsigned) refByte
) << S6_ALPHA_REF_SHIFT
));
413 static void i915_bind_depth_stencil_state(struct pipe_context
*pipe
,
416 struct i915_context
*i915
= i915_context(pipe
);
417 draw_flush(i915
->draw
);
419 i915
->depth_stencil
= (const struct i915_depth_stencil_state
*)depth_stencil
;
421 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
424 static void i915_delete_depth_stencil_state(struct pipe_context
*pipe
,
431 static void i915_set_scissor_state( struct pipe_context
*pipe
,
432 const struct pipe_scissor_state
*scissor
)
434 struct i915_context
*i915
= i915_context(pipe
);
435 draw_flush(i915
->draw
);
437 memcpy( &i915
->scissor
, scissor
, sizeof(*scissor
) );
438 i915
->dirty
|= I915_NEW_SCISSOR
;
442 static void i915_set_polygon_stipple( struct pipe_context
*pipe
,
443 const struct pipe_poly_stipple
*stipple
)
450 i915_create_fs_state(struct pipe_context
*pipe
,
451 const struct pipe_shader_state
*templ
)
453 struct i915_context
*i915
= i915_context(pipe
);
454 struct i915_fragment_shader
*ifs
= CALLOC_STRUCT(i915_fragment_shader
);
458 ifs
->state
.tokens
= tgsi_dup_tokens(templ
->tokens
);
460 tgsi_scan_shader(templ
->tokens
, &ifs
->info
);
462 /* The shader's compiled to i915 instructions here */
463 i915_translate_fragment_program(i915
, ifs
);
469 i915_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
471 struct i915_context
*i915
= i915_context(pipe
);
472 draw_flush(i915
->draw
);
474 i915
->fs
= (struct i915_fragment_shader
*) shader
;
476 i915
->dirty
|= I915_NEW_FS
;
480 void i915_delete_fs_state(struct pipe_context
*pipe
, void *shader
)
482 struct i915_fragment_shader
*ifs
= (struct i915_fragment_shader
*) shader
;
486 ifs
->program_len
= 0;
488 FREE((struct tgsi_token
*)ifs
->state
.tokens
);
495 i915_create_vs_state(struct pipe_context
*pipe
,
496 const struct pipe_shader_state
*templ
)
498 struct i915_context
*i915
= i915_context(pipe
);
500 /* just pass-through to draw module */
501 return draw_create_vertex_shader(i915
->draw
, templ
);
504 static void i915_bind_vs_state(struct pipe_context
*pipe
, void *shader
)
506 struct i915_context
*i915
= i915_context(pipe
);
508 /* just pass-through to draw module */
509 draw_bind_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
511 i915
->dirty
|= I915_NEW_VS
;
514 static void i915_delete_vs_state(struct pipe_context
*pipe
, void *shader
)
516 struct i915_context
*i915
= i915_context(pipe
);
518 /* just pass-through to draw module */
519 draw_delete_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
522 static void i915_set_constant_buffer(struct pipe_context
*pipe
,
523 uint shader
, uint index
,
524 struct pipe_resource
*buf
)
526 struct i915_context
*i915
= i915_context(pipe
);
527 unsigned new_num
= 0;
531 /* XXX don't support geom shaders now */
532 if (shader
== PIPE_SHADER_GEOMETRY
)
535 /* if we have a new buffer compare it with the old one */
537 struct i915_buffer
*ibuf
= i915_buffer(buf
);
538 struct pipe_resource
*old_buf
= i915
->constants
[shader
];
539 struct i915_buffer
*old
= old_buf
? i915_buffer(old_buf
) : NULL
;
540 unsigned old_num
= i915
->current
.num_user_constants
[shader
];
542 new_num
= ibuf
->b
.b
.width0
/ 4 * sizeof(float);
544 if (old_num
== new_num
) {
548 /* XXX no point in running this code since st/mesa only uses user buffers */
549 /* Can't compare the buffer data since they are userbuffers */
550 else if (old
&& old
->free_on_destroy
)
551 diff
= memcmp(old
->data
, ibuf
->data
, ibuf
->b
.b
.width0
);
557 diff
= i915
->current
.num_user_constants
[shader
] != 0;
561 * flush before updateing the state.
563 if (diff
&& shader
== PIPE_SHADER_FRAGMENT
)
564 draw_flush(i915
->draw
);
566 pipe_resource_reference(&i915
->constants
[shader
], buf
);
567 i915
->current
.num_user_constants
[shader
] = new_num
;
570 i915
->dirty
|= shader
== PIPE_SHADER_VERTEX
? I915_NEW_VS_CONSTANTS
: I915_NEW_FS_CONSTANTS
;
574 static void i915_set_fragment_sampler_views(struct pipe_context
*pipe
,
576 struct pipe_sampler_view
**views
)
578 struct i915_context
*i915
= i915_context(pipe
);
581 assert(num
<= PIPE_MAX_SAMPLERS
);
583 /* Check for no-op */
584 if (num
== i915
->num_fragment_sampler_views
&&
585 !memcmp(i915
->fragment_sampler_views
, views
, num
* sizeof(struct pipe_sampler_view
*)))
588 /* Fixes wrong texture in texobj with VBUF */
589 draw_flush(i915
->draw
);
591 for (i
= 0; i
< num
; i
++)
592 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
595 for (i
= num
; i
< i915
->num_fragment_sampler_views
; i
++)
596 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
599 i915
->num_fragment_sampler_views
= num
;
601 i915
->dirty
|= I915_NEW_SAMPLER_VIEW
;
605 static struct pipe_sampler_view
*
606 i915_create_sampler_view(struct pipe_context
*pipe
,
607 struct pipe_resource
*texture
,
608 const struct pipe_sampler_view
*templ
)
610 struct pipe_sampler_view
*view
= CALLOC_STRUCT(pipe_sampler_view
);
614 view
->reference
.count
= 1;
615 view
->texture
= NULL
;
616 pipe_resource_reference(&view
->texture
, texture
);
617 view
->context
= pipe
;
625 i915_sampler_view_destroy(struct pipe_context
*pipe
,
626 struct pipe_sampler_view
*view
)
628 pipe_resource_reference(&view
->texture
, NULL
);
633 static void i915_set_framebuffer_state(struct pipe_context
*pipe
,
634 const struct pipe_framebuffer_state
*fb
)
636 struct i915_context
*i915
= i915_context(pipe
);
639 draw_flush(i915
->draw
);
641 i915
->framebuffer
.width
= fb
->width
;
642 i915
->framebuffer
.height
= fb
->height
;
643 i915
->framebuffer
.nr_cbufs
= fb
->nr_cbufs
;
644 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
645 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
], fb
->cbufs
[i
]);
647 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, fb
->zsbuf
);
649 i915
->dirty
|= I915_NEW_FRAMEBUFFER
;
654 static void i915_set_clip_state( struct pipe_context
*pipe
,
655 const struct pipe_clip_state
*clip
)
657 struct i915_context
*i915
= i915_context(pipe
);
658 draw_flush(i915
->draw
);
660 draw_set_clip_state(i915
->draw
, clip
);
662 i915
->dirty
|= I915_NEW_CLIP
;
667 /* Called when driver state tracker notices changes to the viewport
670 static void i915_set_viewport_state( struct pipe_context
*pipe
,
671 const struct pipe_viewport_state
*viewport
)
673 struct i915_context
*i915
= i915_context(pipe
);
675 i915
->viewport
= *viewport
; /* struct copy */
677 /* pass the viewport info to the draw module */
678 draw_set_viewport_state(i915
->draw
, &i915
->viewport
);
680 i915
->dirty
|= I915_NEW_VIEWPORT
;
685 i915_create_rasterizer_state(struct pipe_context
*pipe
,
686 const struct pipe_rasterizer_state
*rasterizer
)
688 struct i915_rasterizer_state
*cso
= CALLOC_STRUCT( i915_rasterizer_state
);
690 cso
->templ
= rasterizer
;
691 cso
->color_interp
= rasterizer
->flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
692 cso
->light_twoside
= rasterizer
->light_twoside
;
693 cso
->ds
[0].u
= _3DSTATE_DEPTH_OFFSET_SCALE
;
694 cso
->ds
[1].f
= rasterizer
->offset_scale
;
695 if (rasterizer
->poly_stipple_enable
) {
696 cso
->st
|= ST1_ENABLE
;
699 if (rasterizer
->scissor
)
700 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
;
702 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
;
704 switch (rasterizer
->cull_face
) {
706 cso
->LIS4
|= S4_CULLMODE_NONE
;
708 case PIPE_FACE_FRONT
:
709 if (rasterizer
->front_ccw
)
710 cso
->LIS4
|= S4_CULLMODE_CCW
;
712 cso
->LIS4
|= S4_CULLMODE_CW
;
715 if (rasterizer
->front_ccw
)
716 cso
->LIS4
|= S4_CULLMODE_CW
;
718 cso
->LIS4
|= S4_CULLMODE_CCW
;
720 case PIPE_FACE_FRONT_AND_BACK
:
721 cso
->LIS4
|= S4_CULLMODE_BOTH
;
726 int line_width
= CLAMP((int)(rasterizer
->line_width
* 2), 1, 0xf);
728 cso
->LIS4
|= line_width
<< S4_LINE_WIDTH_SHIFT
;
730 if (rasterizer
->line_smooth
)
731 cso
->LIS4
|= S4_LINE_ANTIALIAS_ENABLE
;
735 int point_size
= CLAMP((int) rasterizer
->point_size
, 1, 0xff);
737 cso
->LIS4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
740 if (rasterizer
->flatshade
) {
741 cso
->LIS4
|= (S4_FLATSHADE_ALPHA
|
743 S4_FLATSHADE_SPECULAR
);
746 cso
->LIS7
= fui( rasterizer
->offset_units
);
752 static void i915_bind_rasterizer_state( struct pipe_context
*pipe
,
755 struct i915_context
*i915
= i915_context(pipe
);
757 i915
->rasterizer
= (struct i915_rasterizer_state
*)raster
;
759 /* pass-through to draw module */
760 draw_set_rasterizer_state(i915
->draw
,
761 (i915
->rasterizer
? i915
->rasterizer
->templ
: NULL
),
764 i915
->dirty
|= I915_NEW_RASTERIZER
;
767 static void i915_delete_rasterizer_state(struct pipe_context
*pipe
,
773 static void i915_set_vertex_buffers(struct pipe_context
*pipe
,
775 const struct pipe_vertex_buffer
*buffers
)
777 struct i915_context
*i915
= i915_context(pipe
);
778 struct draw_context
*draw
= i915
->draw
;
782 /* XXX doesn't look like this is needed */
784 for (i
= 0; i
< i915
->num_vertex_buffers
; i
++) {
785 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
789 /* pass-through to draw module */
790 draw_set_vertex_buffers(draw
, count
, buffers
);
793 for (i
= 0; i
< count
; i
++) {
794 void *buf
= i915_buffer(buffers
[i
].buffer
)->data
;
795 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
800 i915_create_vertex_elements_state(struct pipe_context
*pipe
,
802 const struct pipe_vertex_element
*attribs
)
804 struct i915_velems_state
*velems
;
805 assert(count
<= PIPE_MAX_ATTRIBS
);
806 velems
= (struct i915_velems_state
*) MALLOC(sizeof(struct i915_velems_state
));
808 velems
->count
= count
;
809 memcpy(velems
->velem
, attribs
, sizeof(*attribs
) * count
);
815 i915_bind_vertex_elements_state(struct pipe_context
*pipe
,
818 struct i915_context
*i915
= i915_context(pipe
);
819 struct i915_velems_state
*i915_velems
= (struct i915_velems_state
*) velems
;
821 /* pass-through to draw module */
823 draw_set_vertex_elements(i915
->draw
,
824 i915_velems
->count
, i915_velems
->velem
);
829 i915_delete_vertex_elements_state(struct pipe_context
*pipe
, void *velems
)
834 static void i915_set_index_buffer(struct pipe_context
*pipe
,
835 const struct pipe_index_buffer
*ib
)
837 struct i915_context
*i915
= i915_context(pipe
);
840 memcpy(&i915
->index_buffer
, ib
, sizeof(i915
->index_buffer
));
842 memset(&i915
->index_buffer
, 0, sizeof(i915
->index_buffer
));
844 /* pass-through to draw module */
845 draw_set_index_buffer(i915
->draw
, ib
);
849 i915_set_sample_mask(struct pipe_context
*pipe
,
850 unsigned sample_mask
)
855 i915_init_state_functions( struct i915_context
*i915
)
857 i915
->base
.create_blend_state
= i915_create_blend_state
;
858 i915
->base
.bind_blend_state
= i915_bind_blend_state
;
859 i915
->base
.delete_blend_state
= i915_delete_blend_state
;
861 i915
->base
.create_sampler_state
= i915_create_sampler_state
;
862 i915
->base
.bind_fragment_sampler_states
= i915_bind_sampler_states
;
863 i915
->base
.delete_sampler_state
= i915_delete_sampler_state
;
865 i915
->base
.create_depth_stencil_alpha_state
= i915_create_depth_stencil_state
;
866 i915
->base
.bind_depth_stencil_alpha_state
= i915_bind_depth_stencil_state
;
867 i915
->base
.delete_depth_stencil_alpha_state
= i915_delete_depth_stencil_state
;
869 i915
->base
.create_rasterizer_state
= i915_create_rasterizer_state
;
870 i915
->base
.bind_rasterizer_state
= i915_bind_rasterizer_state
;
871 i915
->base
.delete_rasterizer_state
= i915_delete_rasterizer_state
;
872 i915
->base
.create_fs_state
= i915_create_fs_state
;
873 i915
->base
.bind_fs_state
= i915_bind_fs_state
;
874 i915
->base
.delete_fs_state
= i915_delete_fs_state
;
875 i915
->base
.create_vs_state
= i915_create_vs_state
;
876 i915
->base
.bind_vs_state
= i915_bind_vs_state
;
877 i915
->base
.delete_vs_state
= i915_delete_vs_state
;
878 i915
->base
.create_vertex_elements_state
= i915_create_vertex_elements_state
;
879 i915
->base
.bind_vertex_elements_state
= i915_bind_vertex_elements_state
;
880 i915
->base
.delete_vertex_elements_state
= i915_delete_vertex_elements_state
;
882 i915
->base
.set_blend_color
= i915_set_blend_color
;
883 i915
->base
.set_stencil_ref
= i915_set_stencil_ref
;
884 i915
->base
.set_clip_state
= i915_set_clip_state
;
885 i915
->base
.set_sample_mask
= i915_set_sample_mask
;
886 i915
->base
.set_constant_buffer
= i915_set_constant_buffer
;
887 i915
->base
.set_framebuffer_state
= i915_set_framebuffer_state
;
889 i915
->base
.set_polygon_stipple
= i915_set_polygon_stipple
;
890 i915
->base
.set_scissor_state
= i915_set_scissor_state
;
891 i915
->base
.set_fragment_sampler_views
= i915_set_fragment_sampler_views
;
892 i915
->base
.create_sampler_view
= i915_create_sampler_view
;
893 i915
->base
.sampler_view_destroy
= i915_sampler_view_destroy
;
894 i915
->base
.set_viewport_state
= i915_set_viewport_state
;
895 i915
->base
.set_vertex_buffers
= i915_set_vertex_buffers
;
896 i915
->base
.set_index_buffer
= i915_set_index_buffer
;
897 i915
->base
.redefine_user_buffer
= u_default_redefine_user_buffer
;