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_helpers.h"
34 #include "util/u_inlines.h"
35 #include "util/u_math.h"
36 #include "util/u_memory.h"
37 #include "util/u_transfer.h"
38 #include "tgsi/tgsi_parse.h"
40 #include "i915_context.h"
42 #include "i915_state_inlines.h"
44 #include "i915_resource.h"
46 /* The i915 (and related graphics cores) do not support GL_CLAMP. The
47 * Intel drivers for "other operating systems" implement GL_CLAMP as
48 * GL_CLAMP_TO_EDGE, so the same is done here.
51 translate_wrap_mode(unsigned wrap
)
54 case PIPE_TEX_WRAP_REPEAT
:
55 return TEXCOORDMODE_WRAP
;
56 case PIPE_TEX_WRAP_CLAMP
:
57 return TEXCOORDMODE_CLAMP_EDGE
; /* not quite correct */
58 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
59 return TEXCOORDMODE_CLAMP_EDGE
;
60 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
61 return TEXCOORDMODE_CLAMP_BORDER
;
62 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
63 return TEXCOORDMODE_MIRROR
;
65 return TEXCOORDMODE_WRAP
;
69 static unsigned translate_img_filter( unsigned filter
)
72 case PIPE_TEX_FILTER_NEAREST
:
73 return FILTER_NEAREST
;
74 case PIPE_TEX_FILTER_LINEAR
:
78 return FILTER_NEAREST
;
82 static unsigned translate_mip_filter( unsigned filter
)
85 case PIPE_TEX_MIPFILTER_NONE
:
86 return MIPFILTER_NONE
;
87 case PIPE_TEX_MIPFILTER_NEAREST
:
88 return MIPFILTER_NEAREST
;
89 case PIPE_TEX_MIPFILTER_LINEAR
:
90 return MIPFILTER_LINEAR
;
93 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 /* We potentially do some fixup at emission for non-BGRA targets */
150 if ((blend
->rt
[0].colormask
& PIPE_MASK_R
) == 0)
151 cso_data
->LIS5
|= S5_WRITEDISABLE_RED
;
153 if ((blend
->rt
[0].colormask
& PIPE_MASK_G
) == 0)
154 cso_data
->LIS5
|= S5_WRITEDISABLE_GREEN
;
156 if ((blend
->rt
[0].colormask
& PIPE_MASK_B
) == 0)
157 cso_data
->LIS5
|= S5_WRITEDISABLE_BLUE
;
159 if ((blend
->rt
[0].colormask
& PIPE_MASK_A
) == 0)
160 cso_data
->LIS5
|= S5_WRITEDISABLE_ALPHA
;
162 if (blend
->rt
[0].blend_enable
) {
163 unsigned funcRGB
= blend
->rt
[0].rgb_func
;
164 unsigned srcRGB
= blend
->rt
[0].rgb_src_factor
;
165 unsigned dstRGB
= blend
->rt
[0].rgb_dst_factor
;
167 cso_data
->LIS6
|= (S6_CBUF_BLEND_ENABLE
|
168 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB
)) |
169 DST_BLND_FACT(i915_translate_blend_factor(dstRGB
)) |
170 (i915_translate_blend_func(funcRGB
) << S6_CBUF_BLEND_FUNC_SHIFT
));
176 static void i915_bind_blend_state(struct pipe_context
*pipe
,
179 struct i915_context
*i915
= i915_context(pipe
);
181 if (i915
->blend
== blend
)
184 i915
->blend
= (struct i915_blend_state
*)blend
;
186 i915
->dirty
|= I915_NEW_BLEND
;
190 static void i915_delete_blend_state(struct pipe_context
*pipe
, void *blend
)
195 static void i915_set_blend_color( struct pipe_context
*pipe
,
196 const struct pipe_blend_color
*blend_color
)
198 struct i915_context
*i915
= i915_context(pipe
);
203 i915
->blend_color
= *blend_color
;
205 i915
->dirty
|= I915_NEW_BLEND
;
208 static void i915_set_stencil_ref( struct pipe_context
*pipe
,
209 const struct pipe_stencil_ref
*stencil_ref
)
211 struct i915_context
*i915
= i915_context(pipe
);
213 i915
->stencil_ref
= *stencil_ref
;
215 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
219 i915_create_sampler_state(struct pipe_context
*pipe
,
220 const struct pipe_sampler_state
*sampler
)
222 struct i915_sampler_state
*cso
= CALLOC_STRUCT( i915_sampler_state
);
223 const unsigned ws
= sampler
->wrap_s
;
224 const unsigned wt
= sampler
->wrap_t
;
225 const unsigned wr
= sampler
->wrap_r
;
226 unsigned minFilt
, magFilt
;
229 cso
->templ
= *sampler
;
231 mipFilt
= translate_mip_filter(sampler
->min_mip_filter
);
232 minFilt
= translate_img_filter( sampler
->min_img_filter
);
233 magFilt
= translate_img_filter( sampler
->mag_img_filter
);
235 if (sampler
->max_anisotropy
> 1)
236 minFilt
= magFilt
= FILTER_ANISOTROPIC
;
238 if (sampler
->max_anisotropy
> 2) {
239 cso
->state
[0] |= SS2_MAX_ANISO_4
;
243 int b
= (int) (sampler
->lod_bias
* 16.0);
244 b
= CLAMP(b
, -256, 255);
245 cso
->state
[0] |= ((b
<< SS2_LOD_BIAS_SHIFT
) & SS2_LOD_BIAS_MASK
);
250 if (sampler
->compare_mode
== PIPE_TEX_COMPARE_R_TO_TEXTURE
)
252 cso
->state
[0] |= (SS2_SHADOW_ENABLE
|
253 i915_translate_shadow_compare_func(sampler
->compare_func
));
255 minFilt
= FILTER_4X4_FLAT
;
256 magFilt
= FILTER_4X4_FLAT
;
259 cso
->state
[0] |= ((minFilt
<< SS2_MIN_FILTER_SHIFT
) |
260 (mipFilt
<< SS2_MIP_FILTER_SHIFT
) |
261 (magFilt
<< SS2_MAG_FILTER_SHIFT
));
264 ((translate_wrap_mode(ws
) << SS3_TCX_ADDR_MODE_SHIFT
) |
265 (translate_wrap_mode(wt
) << SS3_TCY_ADDR_MODE_SHIFT
) |
266 (translate_wrap_mode(wr
) << SS3_TCZ_ADDR_MODE_SHIFT
));
268 if (sampler
->normalized_coords
)
269 cso
->state
[1] |= SS3_NORMALIZED_COORDS
;
272 int minlod
= (int) (16.0 * sampler
->min_lod
);
273 int maxlod
= (int) (16.0 * sampler
->max_lod
);
274 minlod
= CLAMP(minlod
, 0, 16 * 11);
275 maxlod
= CLAMP(maxlod
, 0, 16 * 11);
280 cso
->minlod
= minlod
;
281 cso
->maxlod
= maxlod
;
285 ubyte r
= float_to_ubyte(sampler
->border_color
.f
[0]);
286 ubyte g
= float_to_ubyte(sampler
->border_color
.f
[1]);
287 ubyte b
= float_to_ubyte(sampler
->border_color
.f
[2]);
288 ubyte a
= float_to_ubyte(sampler
->border_color
.f
[3]);
289 cso
->state
[2] = I915PACKCOLOR8888(r
, g
, b
, a
);
295 i915_bind_vertex_sampler_states(struct pipe_context
*pipe
,
300 struct i915_context
*i915
= i915_context(pipe
);
303 assert(num
<= Elements(i915
->vertex_samplers
));
305 /* Check for no-op */
306 if (num
== i915
->num_vertex_samplers
&&
307 !memcmp(i915
->vertex_samplers
+ start
, samplers
,
308 num
* sizeof(void *)))
311 for (i
= 0; i
< num
; ++i
)
312 i915
->vertex_samplers
[i
+ start
] = samplers
[i
];
314 /* find highest non-null samplers[] entry */
316 unsigned j
= MAX2(i915
->num_vertex_samplers
, start
+ num
);
317 while (j
> 0 && i915
->vertex_samplers
[j
- 1] == NULL
)
319 i915
->num_vertex_samplers
= j
;
322 draw_set_samplers(i915
->draw
,
324 i915
->vertex_samplers
,
325 i915
->num_vertex_samplers
);
330 static void i915_bind_fragment_sampler_states(struct pipe_context
*pipe
,
335 struct i915_context
*i915
= i915_context(pipe
);
338 /* Check for no-op */
339 if (num
== i915
->num_samplers
&&
340 !memcmp(i915
->fragment_sampler
+ start
, samplers
,
341 num
* sizeof(void *)))
344 for (i
= 0; i
< num
; ++i
)
345 i915
->fragment_sampler
[i
+ start
] = samplers
[i
];
347 /* find highest non-null samplers[] entry */
349 unsigned j
= MAX2(i915
->num_samplers
, start
+ num
);
350 while (j
> 0 && i915
->fragment_sampler
[j
- 1] == NULL
)
352 i915
->num_samplers
= j
;
355 i915
->dirty
|= I915_NEW_SAMPLER
;
360 i915_bind_sampler_states(struct pipe_context
*pipe
, unsigned shader
,
361 unsigned start
, unsigned num_samplers
,
365 case PIPE_SHADER_VERTEX
:
366 i915_bind_vertex_sampler_states(pipe
, start
, num_samplers
, samplers
);
368 case PIPE_SHADER_FRAGMENT
:
369 i915_bind_fragment_sampler_states(pipe
, start
, num_samplers
, samplers
);
377 static void i915_delete_sampler_state(struct pipe_context
*pipe
,
385 * Called before drawing VBO to map vertex samplers and hand them to draw
388 i915_prepare_vertex_sampling(struct i915_context
*i915
)
390 struct i915_winsys
*iws
= i915
->iws
;
392 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
];
393 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
];
394 uint32_t mip_offsets
[PIPE_MAX_TEXTURE_LEVELS
];
395 unsigned num
= i915
->num_vertex_sampler_views
;
396 struct pipe_sampler_view
**views
= i915
->vertex_sampler_views
;
398 assert(num
<= PIPE_MAX_SAMPLERS
);
402 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++) {
403 struct pipe_sampler_view
*view
= i
< num
? views
[i
] : NULL
;
406 struct pipe_resource
*tex
= view
->texture
;
407 struct i915_texture
*i915_tex
= i915_texture(tex
);
410 /* We're referencing the texture's internal data, so save a
413 pipe_resource_reference(&i915
->mapped_vs_tex
[i
], tex
);
415 i915
->mapped_vs_tex_buffer
[i
] = i915_tex
->buffer
;
416 addr
= iws
->buffer_map(iws
,
418 FALSE
/* read only */);
420 /* Setup array of mipmap level pointers */
421 /* FIXME: handle 3D textures? */
422 for (j
= view
->u
.tex
.first_level
; j
<= tex
->last_level
; j
++) {
423 mip_offsets
[j
] = i915_texture_offset(i915_tex
, j
, 0 /* FIXME depth */);
424 row_stride
[j
] = i915_tex
->stride
;
425 img_stride
[j
] = 0; /* FIXME */;
428 draw_set_mapped_texture(i915
->draw
,
431 tex
->width0
, tex
->height0
, tex
->depth0
,
432 view
->u
.tex
.first_level
, tex
->last_level
,
434 row_stride
, img_stride
, mip_offsets
);
436 i915
->mapped_vs_tex
[i
] = NULL
;
441 i915_cleanup_vertex_sampling(struct i915_context
*i915
)
443 struct i915_winsys
*iws
= i915
->iws
;
445 for (i
= 0; i
< Elements(i915
->mapped_vs_tex
); i
++) {
446 if (i915
->mapped_vs_tex_buffer
[i
]) {
447 iws
->buffer_unmap(iws
, i915
->mapped_vs_tex_buffer
[i
]);
448 pipe_resource_reference(&i915
->mapped_vs_tex
[i
], NULL
);
455 /** XXX move someday? Or consolidate all these simple state setters
460 i915_create_depth_stencil_state(struct pipe_context
*pipe
,
461 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
463 struct i915_depth_stencil_state
*cso
= CALLOC_STRUCT( i915_depth_stencil_state
);
466 int testmask
= depth_stencil
->stencil
[0].valuemask
& 0xff;
467 int writemask
= depth_stencil
->stencil
[0].writemask
& 0xff;
469 cso
->stencil_modes4
|= (_3DSTATE_MODES_4_CMD
|
470 ENABLE_STENCIL_TEST_MASK
|
471 STENCIL_TEST_MASK(testmask
) |
472 ENABLE_STENCIL_WRITE_MASK
|
473 STENCIL_WRITE_MASK(writemask
));
476 if (depth_stencil
->stencil
[0].enabled
) {
477 int test
= i915_translate_compare_func(depth_stencil
->stencil
[0].func
);
478 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].fail_op
);
479 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zfail_op
);
480 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zpass_op
);
482 cso
->stencil_LIS5
|= (S5_STENCIL_TEST_ENABLE
|
483 S5_STENCIL_WRITE_ENABLE
|
484 (test
<< S5_STENCIL_TEST_FUNC_SHIFT
) |
485 (fop
<< S5_STENCIL_FAIL_SHIFT
) |
486 (dfop
<< S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
487 (dpop
<< S5_STENCIL_PASS_Z_PASS_SHIFT
));
490 if (depth_stencil
->stencil
[1].enabled
) {
491 int test
= i915_translate_compare_func(depth_stencil
->stencil
[1].func
);
492 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].fail_op
);
493 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zfail_op
);
494 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zpass_op
);
495 int tmask
= depth_stencil
->stencil
[1].valuemask
& 0xff;
496 int wmask
= depth_stencil
->stencil
[1].writemask
& 0xff;
498 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
499 BFO_ENABLE_STENCIL_FUNCS
|
500 BFO_ENABLE_STENCIL_TWO_SIDE
|
501 BFO_ENABLE_STENCIL_REF
|
502 BFO_STENCIL_TWO_SIDE
|
503 (test
<< BFO_STENCIL_TEST_SHIFT
) |
504 (fop
<< BFO_STENCIL_FAIL_SHIFT
) |
505 (dfop
<< BFO_STENCIL_PASS_Z_FAIL_SHIFT
) |
506 (dpop
<< BFO_STENCIL_PASS_Z_PASS_SHIFT
));
508 cso
->bfo
[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS
|
509 BFM_ENABLE_STENCIL_TEST_MASK
|
510 BFM_ENABLE_STENCIL_WRITE_MASK
|
511 (tmask
<< BFM_STENCIL_TEST_MASK_SHIFT
) |
512 (wmask
<< BFM_STENCIL_WRITE_MASK_SHIFT
));
515 /* This actually disables two-side stencil: The bit set is a
516 * modify-enable bit to indicate we are changing the two-side
517 * setting. Then there is a symbolic zero to show that we are
518 * setting the flag to zero/off.
520 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
521 BFO_ENABLE_STENCIL_TWO_SIDE
|
526 if (depth_stencil
->depth
.enabled
) {
527 int func
= i915_translate_compare_func(depth_stencil
->depth
.func
);
529 cso
->depth_LIS6
|= (S6_DEPTH_TEST_ENABLE
|
530 (func
<< S6_DEPTH_TEST_FUNC_SHIFT
));
532 if (depth_stencil
->depth
.writemask
)
533 cso
->depth_LIS6
|= S6_DEPTH_WRITE_ENABLE
;
536 if (depth_stencil
->alpha
.enabled
) {
537 int test
= i915_translate_compare_func(depth_stencil
->alpha
.func
);
538 ubyte refByte
= float_to_ubyte(depth_stencil
->alpha
.ref_value
);
540 cso
->depth_LIS6
|= (S6_ALPHA_TEST_ENABLE
|
541 (test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
542 (((unsigned) refByte
) << S6_ALPHA_REF_SHIFT
));
548 static void i915_bind_depth_stencil_state(struct pipe_context
*pipe
,
551 struct i915_context
*i915
= i915_context(pipe
);
553 if (i915
->depth_stencil
== depth_stencil
)
556 i915
->depth_stencil
= (const struct i915_depth_stencil_state
*)depth_stencil
;
558 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
561 static void i915_delete_depth_stencil_state(struct pipe_context
*pipe
,
568 static void i915_set_scissor_states( struct pipe_context
*pipe
,
570 unsigned num_scissors
,
571 const struct pipe_scissor_state
*scissor
)
573 struct i915_context
*i915
= i915_context(pipe
);
575 memcpy( &i915
->scissor
, scissor
, sizeof(*scissor
) );
576 i915
->dirty
|= I915_NEW_SCISSOR
;
580 static void i915_set_polygon_stipple( struct pipe_context
*pipe
,
581 const struct pipe_poly_stipple
*stipple
)
588 i915_create_fs_state(struct pipe_context
*pipe
,
589 const struct pipe_shader_state
*templ
)
591 struct i915_context
*i915
= i915_context(pipe
);
592 struct i915_fragment_shader
*ifs
= CALLOC_STRUCT(i915_fragment_shader
);
596 ifs
->draw_data
= draw_create_fragment_shader(i915
->draw
, templ
);
597 ifs
->state
.tokens
= tgsi_dup_tokens(templ
->tokens
);
599 tgsi_scan_shader(templ
->tokens
, &ifs
->info
);
601 /* The shader's compiled to i915 instructions here */
602 i915_translate_fragment_program(i915
, ifs
);
608 i915_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
610 struct i915_context
*i915
= i915_context(pipe
);
612 if (i915
->fs
== shader
)
615 i915
->fs
= (struct i915_fragment_shader
*) shader
;
617 draw_bind_fragment_shader(i915
->draw
, (i915
->fs
? i915
->fs
->draw_data
: NULL
));
619 i915
->dirty
|= I915_NEW_FS
;
623 void i915_delete_fs_state(struct pipe_context
*pipe
, void *shader
)
625 struct i915_fragment_shader
*ifs
= (struct i915_fragment_shader
*) shader
;
633 FREE((struct tgsi_token
*)ifs
->state
.tokens
);
634 ifs
->state
.tokens
= NULL
;
637 ifs
->program_len
= 0;
645 i915_create_vs_state(struct pipe_context
*pipe
,
646 const struct pipe_shader_state
*templ
)
648 struct i915_context
*i915
= i915_context(pipe
);
650 /* just pass-through to draw module */
651 return draw_create_vertex_shader(i915
->draw
, templ
);
654 static void i915_bind_vs_state(struct pipe_context
*pipe
, void *shader
)
656 struct i915_context
*i915
= i915_context(pipe
);
658 if (i915
->vs
== shader
)
663 /* just pass-through to draw module */
664 draw_bind_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
666 i915
->dirty
|= I915_NEW_VS
;
669 static void i915_delete_vs_state(struct pipe_context
*pipe
, void *shader
)
671 struct i915_context
*i915
= i915_context(pipe
);
673 /* just pass-through to draw module */
674 draw_delete_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
677 static void i915_set_constant_buffer(struct pipe_context
*pipe
,
678 uint shader
, uint index
,
679 struct pipe_constant_buffer
*cb
)
681 struct i915_context
*i915
= i915_context(pipe
);
682 struct pipe_resource
*buf
= cb
? cb
->buffer
: NULL
;
683 unsigned new_num
= 0;
686 /* XXX don't support geom shaders now */
687 if (shader
== PIPE_SHADER_GEOMETRY
)
690 if (cb
&& cb
->user_buffer
) {
691 buf
= i915_user_buffer_create(pipe
->screen
, (void *) cb
->user_buffer
,
693 PIPE_BIND_CONSTANT_BUFFER
);
696 /* if we have a new buffer compare it with the old one */
698 struct i915_buffer
*ibuf
= i915_buffer(buf
);
699 struct pipe_resource
*old_buf
= i915
->constants
[shader
];
700 struct i915_buffer
*old
= old_buf
? i915_buffer(old_buf
) : NULL
;
701 unsigned old_num
= i915
->current
.num_user_constants
[shader
];
703 new_num
= ibuf
->b
.b
.width0
/ 4 * sizeof(float);
705 if (old_num
== new_num
) {
709 /* XXX no point in running this code since st/mesa only uses user buffers */
710 /* Can't compare the buffer data since they are userbuffers */
711 else if (old
&& old
->free_on_destroy
)
712 diff
= memcmp(old
->data
, ibuf
->data
, ibuf
->b
.b
.width0
);
718 diff
= i915
->current
.num_user_constants
[shader
] != 0;
721 pipe_resource_reference(&i915
->constants
[shader
], buf
);
722 i915
->current
.num_user_constants
[shader
] = new_num
;
725 i915
->dirty
|= shader
== PIPE_SHADER_VERTEX
? I915_NEW_VS_CONSTANTS
: I915_NEW_FS_CONSTANTS
;
727 if (cb
&& cb
->user_buffer
) {
728 pipe_resource_reference(&buf
, NULL
);
733 static void i915_set_fragment_sampler_views(struct pipe_context
*pipe
,
735 struct pipe_sampler_view
**views
)
737 struct i915_context
*i915
= i915_context(pipe
);
740 assert(num
<= PIPE_MAX_SAMPLERS
);
742 /* Check for no-op */
743 if (num
== i915
->num_fragment_sampler_views
&&
744 !memcmp(i915
->fragment_sampler_views
, views
, num
* sizeof(struct pipe_sampler_view
*)))
747 for (i
= 0; i
< num
; i
++) {
748 /* Note: we're using pipe_sampler_view_release() here to work around
749 * a possible crash when the old view belongs to another context that
750 * was already destroyed.
752 pipe_sampler_view_release(pipe
, &i915
->fragment_sampler_views
[i
]);
753 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
757 for (i
= num
; i
< i915
->num_fragment_sampler_views
; i
++)
758 pipe_sampler_view_release(pipe
, &i915
->fragment_sampler_views
[i
]);
760 i915
->num_fragment_sampler_views
= num
;
762 i915
->dirty
|= I915_NEW_SAMPLER_VIEW
;
766 i915_set_vertex_sampler_views(struct pipe_context
*pipe
,
768 struct pipe_sampler_view
**views
)
770 struct i915_context
*i915
= i915_context(pipe
);
773 assert(num
<= Elements(i915
->vertex_sampler_views
));
775 /* Check for no-op */
776 if (num
== i915
->num_vertex_sampler_views
&&
777 !memcmp(i915
->vertex_sampler_views
, views
, num
* sizeof(struct pipe_sampler_view
*))) {
781 for (i
= 0; i
< Elements(i915
->vertex_sampler_views
); i
++) {
782 struct pipe_sampler_view
*view
= i
< num
? views
[i
] : NULL
;
784 pipe_sampler_view_reference(&i915
->vertex_sampler_views
[i
], view
);
787 i915
->num_vertex_sampler_views
= num
;
789 draw_set_sampler_views(i915
->draw
,
791 i915
->vertex_sampler_views
,
792 i915
->num_vertex_sampler_views
);
796 static struct pipe_sampler_view
*
797 i915_create_sampler_view(struct pipe_context
*pipe
,
798 struct pipe_resource
*texture
,
799 const struct pipe_sampler_view
*templ
)
801 struct pipe_sampler_view
*view
= CALLOC_STRUCT(pipe_sampler_view
);
805 view
->reference
.count
= 1;
806 view
->texture
= NULL
;
807 pipe_resource_reference(&view
->texture
, texture
);
808 view
->context
= pipe
;
816 i915_sampler_view_destroy(struct pipe_context
*pipe
,
817 struct pipe_sampler_view
*view
)
819 pipe_resource_reference(&view
->texture
, NULL
);
824 static void i915_set_framebuffer_state(struct pipe_context
*pipe
,
825 const struct pipe_framebuffer_state
*fb
)
827 struct i915_context
*i915
= i915_context(pipe
);
830 i915
->framebuffer
.width
= fb
->width
;
831 i915
->framebuffer
.height
= fb
->height
;
832 i915
->framebuffer
.nr_cbufs
= fb
->nr_cbufs
;
833 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
834 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
],
835 i
< fb
->nr_cbufs
? fb
->cbufs
[i
] : NULL
);
837 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, fb
->zsbuf
);
839 i915
->dirty
|= I915_NEW_FRAMEBUFFER
;
844 static void i915_set_clip_state( struct pipe_context
*pipe
,
845 const struct pipe_clip_state
*clip
)
847 struct i915_context
*i915
= i915_context(pipe
);
851 draw_set_clip_state(i915
->draw
, clip
);
853 i915
->dirty
|= I915_NEW_CLIP
;
858 /* Called when driver state tracker notices changes to the viewport
861 static void i915_set_viewport_states( struct pipe_context
*pipe
,
863 unsigned num_viewports
,
864 const struct pipe_viewport_state
*viewport
)
866 struct i915_context
*i915
= i915_context(pipe
);
868 i915
->viewport
= *viewport
; /* struct copy */
870 /* pass the viewport info to the draw module */
871 draw_set_viewport_states(i915
->draw
, start_slot
, num_viewports
,
874 i915
->dirty
|= I915_NEW_VIEWPORT
;
879 i915_create_rasterizer_state(struct pipe_context
*pipe
,
880 const struct pipe_rasterizer_state
*rasterizer
)
882 struct i915_rasterizer_state
*cso
= CALLOC_STRUCT( i915_rasterizer_state
);
884 cso
->templ
= *rasterizer
;
885 cso
->color_interp
= rasterizer
->flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
886 cso
->light_twoside
= rasterizer
->light_twoside
;
887 cso
->ds
[0].u
= _3DSTATE_DEPTH_OFFSET_SCALE
;
888 cso
->ds
[1].f
= rasterizer
->offset_scale
;
889 if (rasterizer
->poly_stipple_enable
) {
890 cso
->st
|= ST1_ENABLE
;
893 if (rasterizer
->scissor
)
894 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
;
896 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
;
898 switch (rasterizer
->cull_face
) {
900 cso
->LIS4
|= S4_CULLMODE_NONE
;
902 case PIPE_FACE_FRONT
:
903 if (rasterizer
->front_ccw
)
904 cso
->LIS4
|= S4_CULLMODE_CCW
;
906 cso
->LIS4
|= S4_CULLMODE_CW
;
909 if (rasterizer
->front_ccw
)
910 cso
->LIS4
|= S4_CULLMODE_CW
;
912 cso
->LIS4
|= S4_CULLMODE_CCW
;
914 case PIPE_FACE_FRONT_AND_BACK
:
915 cso
->LIS4
|= S4_CULLMODE_BOTH
;
920 int line_width
= CLAMP((int)(rasterizer
->line_width
* 2), 1, 0xf);
922 cso
->LIS4
|= line_width
<< S4_LINE_WIDTH_SHIFT
;
924 if (rasterizer
->line_smooth
)
925 cso
->LIS4
|= S4_LINE_ANTIALIAS_ENABLE
;
929 int point_size
= CLAMP((int) rasterizer
->point_size
, 1, 0xff);
931 cso
->LIS4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
934 if (rasterizer
->flatshade
) {
935 cso
->LIS4
|= (S4_FLATSHADE_ALPHA
|
937 S4_FLATSHADE_SPECULAR
);
940 cso
->LIS7
= fui( rasterizer
->offset_units
);
946 static void i915_bind_rasterizer_state( struct pipe_context
*pipe
,
949 struct i915_context
*i915
= i915_context(pipe
);
951 if (i915
->rasterizer
== raster
)
954 i915
->rasterizer
= (struct i915_rasterizer_state
*)raster
;
956 /* pass-through to draw module */
957 draw_set_rasterizer_state(i915
->draw
,
958 (i915
->rasterizer
? &(i915
->rasterizer
->templ
) : NULL
),
961 i915
->dirty
|= I915_NEW_RASTERIZER
;
964 static void i915_delete_rasterizer_state(struct pipe_context
*pipe
,
970 static void i915_set_vertex_buffers(struct pipe_context
*pipe
,
971 unsigned start_slot
, unsigned count
,
972 const struct pipe_vertex_buffer
*buffers
)
974 struct i915_context
*i915
= i915_context(pipe
);
975 struct draw_context
*draw
= i915
->draw
;
977 util_set_vertex_buffers_count(i915
->vertex_buffers
,
978 &i915
->nr_vertex_buffers
,
979 buffers
, start_slot
, count
);
981 /* pass-through to draw module */
982 draw_set_vertex_buffers(draw
, start_slot
, count
, buffers
);
986 i915_create_vertex_elements_state(struct pipe_context
*pipe
,
988 const struct pipe_vertex_element
*attribs
)
990 struct i915_velems_state
*velems
;
991 assert(count
<= PIPE_MAX_ATTRIBS
);
992 velems
= (struct i915_velems_state
*) MALLOC(sizeof(struct i915_velems_state
));
994 velems
->count
= count
;
995 memcpy(velems
->velem
, attribs
, sizeof(*attribs
) * count
);
1001 i915_bind_vertex_elements_state(struct pipe_context
*pipe
,
1004 struct i915_context
*i915
= i915_context(pipe
);
1005 struct i915_velems_state
*i915_velems
= (struct i915_velems_state
*) velems
;
1007 if (i915
->velems
== velems
)
1010 i915
->velems
= velems
;
1012 /* pass-through to draw module */
1014 draw_set_vertex_elements(i915
->draw
,
1015 i915_velems
->count
, i915_velems
->velem
);
1020 i915_delete_vertex_elements_state(struct pipe_context
*pipe
, void *velems
)
1025 static void i915_set_index_buffer(struct pipe_context
*pipe
,
1026 const struct pipe_index_buffer
*ib
)
1028 struct i915_context
*i915
= i915_context(pipe
);
1031 memcpy(&i915
->index_buffer
, ib
, sizeof(i915
->index_buffer
));
1033 memset(&i915
->index_buffer
, 0, sizeof(i915
->index_buffer
));
1037 i915_set_sample_mask(struct pipe_context
*pipe
,
1038 unsigned sample_mask
)
1043 i915_init_state_functions( struct i915_context
*i915
)
1045 i915
->base
.create_blend_state
= i915_create_blend_state
;
1046 i915
->base
.bind_blend_state
= i915_bind_blend_state
;
1047 i915
->base
.delete_blend_state
= i915_delete_blend_state
;
1049 i915
->base
.create_sampler_state
= i915_create_sampler_state
;
1050 i915
->base
.bind_sampler_states
= i915_bind_sampler_states
;
1051 i915
->base
.delete_sampler_state
= i915_delete_sampler_state
;
1053 i915
->base
.create_depth_stencil_alpha_state
= i915_create_depth_stencil_state
;
1054 i915
->base
.bind_depth_stencil_alpha_state
= i915_bind_depth_stencil_state
;
1055 i915
->base
.delete_depth_stencil_alpha_state
= i915_delete_depth_stencil_state
;
1057 i915
->base
.create_rasterizer_state
= i915_create_rasterizer_state
;
1058 i915
->base
.bind_rasterizer_state
= i915_bind_rasterizer_state
;
1059 i915
->base
.delete_rasterizer_state
= i915_delete_rasterizer_state
;
1060 i915
->base
.create_fs_state
= i915_create_fs_state
;
1061 i915
->base
.bind_fs_state
= i915_bind_fs_state
;
1062 i915
->base
.delete_fs_state
= i915_delete_fs_state
;
1063 i915
->base
.create_vs_state
= i915_create_vs_state
;
1064 i915
->base
.bind_vs_state
= i915_bind_vs_state
;
1065 i915
->base
.delete_vs_state
= i915_delete_vs_state
;
1066 i915
->base
.create_vertex_elements_state
= i915_create_vertex_elements_state
;
1067 i915
->base
.bind_vertex_elements_state
= i915_bind_vertex_elements_state
;
1068 i915
->base
.delete_vertex_elements_state
= i915_delete_vertex_elements_state
;
1070 i915
->base
.set_blend_color
= i915_set_blend_color
;
1071 i915
->base
.set_stencil_ref
= i915_set_stencil_ref
;
1072 i915
->base
.set_clip_state
= i915_set_clip_state
;
1073 i915
->base
.set_sample_mask
= i915_set_sample_mask
;
1074 i915
->base
.set_constant_buffer
= i915_set_constant_buffer
;
1075 i915
->base
.set_framebuffer_state
= i915_set_framebuffer_state
;
1077 i915
->base
.set_polygon_stipple
= i915_set_polygon_stipple
;
1078 i915
->base
.set_scissor_states
= i915_set_scissor_states
;
1079 i915
->base
.set_fragment_sampler_views
= i915_set_fragment_sampler_views
;
1080 i915
->base
.set_vertex_sampler_views
= i915_set_vertex_sampler_views
;
1081 i915
->base
.create_sampler_view
= i915_create_sampler_view
;
1082 i915
->base
.sampler_view_destroy
= i915_sampler_view_destroy
;
1083 i915
->base
.set_viewport_states
= i915_set_viewport_states
;
1084 i915
->base
.set_vertex_buffers
= i915_set_vertex_buffers
;
1085 i915
->base
.set_index_buffer
= i915_set_index_buffer
;