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 /* XXX here take the target fixup into account */
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
);
180 draw_flush(i915
->draw
);
182 i915
->blend
= (struct i915_blend_state
*)blend
;
184 i915
->dirty
|= I915_NEW_BLEND
;
188 static void i915_delete_blend_state(struct pipe_context
*pipe
, void *blend
)
193 static void i915_set_blend_color( struct pipe_context
*pipe
,
194 const struct pipe_blend_color
*blend_color
)
196 struct i915_context
*i915
= i915_context(pipe
);
197 draw_flush(i915
->draw
);
199 i915
->blend_color
= *blend_color
;
201 i915
->dirty
|= I915_NEW_BLEND
;
204 static void i915_set_stencil_ref( struct pipe_context
*pipe
,
205 const struct pipe_stencil_ref
*stencil_ref
)
207 struct i915_context
*i915
= i915_context(pipe
);
208 draw_flush(i915
->draw
);
210 i915
->stencil_ref
= *stencil_ref
;
212 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
216 i915_create_sampler_state(struct pipe_context
*pipe
,
217 const struct pipe_sampler_state
*sampler
)
219 struct i915_sampler_state
*cso
= CALLOC_STRUCT( i915_sampler_state
);
220 const unsigned ws
= sampler
->wrap_s
;
221 const unsigned wt
= sampler
->wrap_t
;
222 const unsigned wr
= sampler
->wrap_r
;
223 unsigned minFilt
, magFilt
;
226 cso
->templ
= sampler
;
228 mipFilt
= translate_mip_filter(sampler
->min_mip_filter
);
229 minFilt
= translate_img_filter( sampler
->min_img_filter
);
230 magFilt
= translate_img_filter( sampler
->mag_img_filter
);
232 if (sampler
->max_anisotropy
> 1)
233 minFilt
= magFilt
= FILTER_ANISOTROPIC
;
235 if (sampler
->max_anisotropy
> 2) {
236 cso
->state
[0] |= SS2_MAX_ANISO_4
;
240 int b
= (int) (sampler
->lod_bias
* 16.0);
241 b
= CLAMP(b
, -256, 255);
242 cso
->state
[0] |= ((b
<< SS2_LOD_BIAS_SHIFT
) & SS2_LOD_BIAS_MASK
);
247 if (sampler
->compare_mode
== PIPE_TEX_COMPARE_R_TO_TEXTURE
)
249 cso
->state
[0] |= (SS2_SHADOW_ENABLE
|
250 i915_translate_shadow_compare_func(sampler
->compare_func
));
252 minFilt
= FILTER_4X4_FLAT
;
253 magFilt
= FILTER_4X4_FLAT
;
256 cso
->state
[0] |= ((minFilt
<< SS2_MIN_FILTER_SHIFT
) |
257 (mipFilt
<< SS2_MIP_FILTER_SHIFT
) |
258 (magFilt
<< SS2_MAG_FILTER_SHIFT
));
261 ((translate_wrap_mode(ws
) << SS3_TCX_ADDR_MODE_SHIFT
) |
262 (translate_wrap_mode(wt
) << SS3_TCY_ADDR_MODE_SHIFT
) |
263 (translate_wrap_mode(wr
) << SS3_TCZ_ADDR_MODE_SHIFT
));
265 if (sampler
->normalized_coords
)
266 cso
->state
[1] |= SS3_NORMALIZED_COORDS
;
269 int minlod
= (int) (16.0 * sampler
->min_lod
);
270 int maxlod
= (int) (16.0 * sampler
->max_lod
);
271 minlod
= CLAMP(minlod
, 0, 16 * 11);
272 maxlod
= CLAMP(maxlod
, 0, 16 * 11);
277 cso
->minlod
= minlod
;
278 cso
->maxlod
= maxlod
;
282 ubyte r
= float_to_ubyte(sampler
->border_color
.f
[0]);
283 ubyte g
= float_to_ubyte(sampler
->border_color
.f
[1]);
284 ubyte b
= float_to_ubyte(sampler
->border_color
.f
[2]);
285 ubyte a
= float_to_ubyte(sampler
->border_color
.f
[3]);
286 cso
->state
[2] = I915PACKCOLOR8888(r
, g
, b
, a
);
291 static void i915_fixup_bind_sampler_states(struct pipe_context
*pipe
,
292 unsigned num
, void **sampler
)
294 struct i915_context
*i915
= i915_context(pipe
);
296 i915
->saved_nr_samplers
= num
;
297 memcpy(&i915
->saved_samplers
, sampler
, sizeof(void *) * num
);
299 i915
->saved_bind_sampler_states(pipe
, num
, sampler
);
303 i915_bind_vertex_sampler_states(struct pipe_context
*pipe
,
304 unsigned num_samplers
,
307 struct i915_context
*i915
= i915_context(pipe
);
310 assert(num_samplers
<= PIPE_MAX_VERTEX_SAMPLERS
);
312 /* Check for no-op */
313 if (num_samplers
== i915
->num_vertex_samplers
&&
314 !memcmp(i915
->vertex_samplers
, samplers
, num_samplers
* sizeof(void *)))
317 draw_flush(i915
->draw
);
319 for (i
= 0; i
< num_samplers
; ++i
)
320 i915
->vertex_samplers
[i
] = samplers
[i
];
321 for (i
= num_samplers
; i
< PIPE_MAX_VERTEX_SAMPLERS
; ++i
)
322 i915
->vertex_samplers
[i
] = NULL
;
324 i915
->num_vertex_samplers
= num_samplers
;
326 draw_set_samplers(i915
->draw
,
327 i915
->vertex_samplers
,
328 i915
->num_vertex_samplers
);
333 static void i915_bind_fragment_sampler_states(struct pipe_context
*pipe
,
334 unsigned num
, void **sampler
)
336 struct i915_context
*i915
= i915_context(pipe
);
339 /* Check for no-op */
340 if (num
== i915
->num_samplers
&&
341 !memcmp(i915
->sampler
, sampler
, num
* sizeof(void *)))
344 draw_flush(i915
->draw
);
346 for (i
= 0; i
< num
; ++i
)
347 i915
->sampler
[i
] = sampler
[i
];
348 for (i
= num
; i
< PIPE_MAX_SAMPLERS
; ++i
)
349 i915
->sampler
[i
] = NULL
;
351 i915
->num_samplers
= num
;
353 i915
->dirty
|= I915_NEW_SAMPLER
;
356 static void i915_delete_sampler_state(struct pipe_context
*pipe
,
364 * Called before drawing VBO to map vertex samplers and hand them to draw
367 i915_prepare_vertex_sampling(struct i915_context
*i915
,
369 struct pipe_sampler_view
**views
)
371 struct i915_winsys
*iws
= i915
->iws
;
373 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
];
374 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
];
375 const void* data
[PIPE_MAX_TEXTURE_LEVELS
];
377 assert(num
<= PIPE_MAX_VERTEX_SAMPLERS
);
381 for (i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; i
++) {
382 struct pipe_sampler_view
*view
= i
< num
? views
[i
] : NULL
;
385 struct pipe_resource
*tex
= view
->texture
;
386 struct i915_texture
*i915_tex
= i915_texture(tex
);
389 /* We're referencing the texture's internal data, so save a
392 pipe_resource_reference(&i915
->mapped_vs_tex
[i
], tex
);
394 i915
->mapped_vs_tex_buffer
[i
] = i915_tex
->buffer
;
395 addr
= iws
->buffer_map(iws
,
397 FALSE
/* read only */);
399 /* Setup array of mipmap level pointers */
400 /* FIXME: handle 3D textures? */
401 for (j
= view
->u
.tex
.first_level
; j
<= tex
->last_level
; j
++) {
402 unsigned offset
= i915_texture_offset(i915_tex
, j
, 0 /* FIXME depth */);
403 data
[j
] = addr
+ offset
;
404 row_stride
[j
] = i915_tex
->stride
;
405 img_stride
[j
] = 0; /* FIXME */;
408 draw_set_mapped_texture(i915
->draw
,
410 tex
->width0
, tex
->height0
, tex
->depth0
,
411 view
->u
.tex
.first_level
, tex
->last_level
,
412 row_stride
, img_stride
, data
);
414 i915
->mapped_vs_tex
[i
] = NULL
;
419 i915_cleanup_vertex_sampling(struct i915_context
*i915
)
421 struct i915_winsys
*iws
= i915
->iws
;
423 for (i
= 0; i
< Elements(i915
->mapped_vs_tex
); i
++) {
424 if (i915
->mapped_vs_tex_buffer
[i
]) {
425 iws
->buffer_unmap(iws
, i915
->mapped_vs_tex_buffer
[i
]);
426 pipe_resource_reference(&i915
->mapped_vs_tex
[i
], NULL
);
433 /** XXX move someday? Or consolidate all these simple state setters
438 i915_create_depth_stencil_state(struct pipe_context
*pipe
,
439 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
441 struct i915_depth_stencil_state
*cso
= CALLOC_STRUCT( i915_depth_stencil_state
);
444 int testmask
= depth_stencil
->stencil
[0].valuemask
& 0xff;
445 int writemask
= depth_stencil
->stencil
[0].writemask
& 0xff;
447 cso
->stencil_modes4
|= (_3DSTATE_MODES_4_CMD
|
448 ENABLE_STENCIL_TEST_MASK
|
449 STENCIL_TEST_MASK(testmask
) |
450 ENABLE_STENCIL_WRITE_MASK
|
451 STENCIL_WRITE_MASK(writemask
));
454 if (depth_stencil
->stencil
[0].enabled
) {
455 int test
= i915_translate_compare_func(depth_stencil
->stencil
[0].func
);
456 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].fail_op
);
457 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zfail_op
);
458 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zpass_op
);
460 cso
->stencil_LIS5
|= (S5_STENCIL_TEST_ENABLE
|
461 S5_STENCIL_WRITE_ENABLE
|
462 (test
<< S5_STENCIL_TEST_FUNC_SHIFT
) |
463 (fop
<< S5_STENCIL_FAIL_SHIFT
) |
464 (dfop
<< S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
465 (dpop
<< S5_STENCIL_PASS_Z_PASS_SHIFT
));
468 if (depth_stencil
->stencil
[1].enabled
) {
469 int test
= i915_translate_compare_func(depth_stencil
->stencil
[1].func
);
470 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].fail_op
);
471 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zfail_op
);
472 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zpass_op
);
473 int tmask
= depth_stencil
->stencil
[1].valuemask
& 0xff;
474 int wmask
= depth_stencil
->stencil
[1].writemask
& 0xff;
476 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
477 BFO_ENABLE_STENCIL_FUNCS
|
478 BFO_ENABLE_STENCIL_TWO_SIDE
|
479 BFO_ENABLE_STENCIL_REF
|
480 BFO_STENCIL_TWO_SIDE
|
481 (test
<< BFO_STENCIL_TEST_SHIFT
) |
482 (fop
<< BFO_STENCIL_FAIL_SHIFT
) |
483 (dfop
<< BFO_STENCIL_PASS_Z_FAIL_SHIFT
) |
484 (dpop
<< BFO_STENCIL_PASS_Z_PASS_SHIFT
));
486 cso
->bfo
[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS
|
487 BFM_ENABLE_STENCIL_TEST_MASK
|
488 BFM_ENABLE_STENCIL_WRITE_MASK
|
489 (tmask
<< BFM_STENCIL_TEST_MASK_SHIFT
) |
490 (wmask
<< BFM_STENCIL_WRITE_MASK_SHIFT
));
493 /* This actually disables two-side stencil: The bit set is a
494 * modify-enable bit to indicate we are changing the two-side
495 * setting. Then there is a symbolic zero to show that we are
496 * setting the flag to zero/off.
498 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
499 BFO_ENABLE_STENCIL_TWO_SIDE
|
504 if (depth_stencil
->depth
.enabled
) {
505 int func
= i915_translate_compare_func(depth_stencil
->depth
.func
);
507 cso
->depth_LIS6
|= (S6_DEPTH_TEST_ENABLE
|
508 (func
<< S6_DEPTH_TEST_FUNC_SHIFT
));
510 if (depth_stencil
->depth
.writemask
)
511 cso
->depth_LIS6
|= S6_DEPTH_WRITE_ENABLE
;
514 if (depth_stencil
->alpha
.enabled
) {
515 int test
= i915_translate_compare_func(depth_stencil
->alpha
.func
);
516 ubyte refByte
= float_to_ubyte(depth_stencil
->alpha
.ref_value
);
518 cso
->depth_LIS6
|= (S6_ALPHA_TEST_ENABLE
|
519 (test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
520 (((unsigned) refByte
) << S6_ALPHA_REF_SHIFT
));
526 static void i915_bind_depth_stencil_state(struct pipe_context
*pipe
,
529 struct i915_context
*i915
= i915_context(pipe
);
530 draw_flush(i915
->draw
);
532 i915
->depth_stencil
= (const struct i915_depth_stencil_state
*)depth_stencil
;
534 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
537 static void i915_delete_depth_stencil_state(struct pipe_context
*pipe
,
544 static void i915_set_scissor_state( struct pipe_context
*pipe
,
545 const struct pipe_scissor_state
*scissor
)
547 struct i915_context
*i915
= i915_context(pipe
);
548 draw_flush(i915
->draw
);
550 memcpy( &i915
->scissor
, scissor
, sizeof(*scissor
) );
551 i915
->dirty
|= I915_NEW_SCISSOR
;
555 static void i915_set_polygon_stipple( struct pipe_context
*pipe
,
556 const struct pipe_poly_stipple
*stipple
)
563 i915_create_fs_state(struct pipe_context
*pipe
,
564 const struct pipe_shader_state
*templ
)
566 struct i915_context
*i915
= i915_context(pipe
);
567 struct i915_fragment_shader
*ifs
= CALLOC_STRUCT(i915_fragment_shader
);
571 ifs
->draw_data
= draw_create_fragment_shader(i915
->draw
, templ
);
572 ifs
->state
.tokens
= tgsi_dup_tokens(templ
->tokens
);
574 tgsi_scan_shader(templ
->tokens
, &ifs
->info
);
576 /* The shader's compiled to i915 instructions here */
577 i915_translate_fragment_program(i915
, ifs
);
583 i915_fixup_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
585 struct i915_context
*i915
= i915_context(pipe
);
586 draw_flush(i915
->draw
);
588 i915
->saved_fs
= shader
;
590 i915
->saved_bind_fs_state(pipe
, shader
);
594 i915_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
596 struct i915_context
*i915
= i915_context(pipe
);
597 draw_flush(i915
->draw
);
599 i915
->fs
= (struct i915_fragment_shader
*) shader
;
601 draw_bind_fragment_shader(i915
->draw
, (i915
->fs
? i915
->fs
->draw_data
: NULL
));
603 i915
->dirty
|= I915_NEW_FS
;
607 void i915_delete_fs_state(struct pipe_context
*pipe
, void *shader
)
609 struct i915_fragment_shader
*ifs
= (struct i915_fragment_shader
*) shader
;
614 FREE((struct tgsi_token
*)ifs
->state
.tokens
);
615 ifs
->state
.tokens
= NULL
;
617 ifs
->program_len
= 0;
624 i915_create_vs_state(struct pipe_context
*pipe
,
625 const struct pipe_shader_state
*templ
)
627 struct i915_context
*i915
= i915_context(pipe
);
629 /* just pass-through to draw module */
630 return draw_create_vertex_shader(i915
->draw
, templ
);
633 static void i915_bind_vs_state(struct pipe_context
*pipe
, void *shader
)
635 struct i915_context
*i915
= i915_context(pipe
);
637 i915
->saved_vs
= shader
;
639 /* just pass-through to draw module */
640 draw_bind_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
642 i915
->dirty
|= I915_NEW_VS
;
645 static void i915_delete_vs_state(struct pipe_context
*pipe
, void *shader
)
647 struct i915_context
*i915
= i915_context(pipe
);
649 /* just pass-through to draw module */
650 draw_delete_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
653 static void i915_set_constant_buffer(struct pipe_context
*pipe
,
654 uint shader
, uint index
,
655 struct pipe_resource
*buf
)
657 struct i915_context
*i915
= i915_context(pipe
);
658 unsigned new_num
= 0;
662 /* XXX don't support geom shaders now */
663 if (shader
== PIPE_SHADER_GEOMETRY
)
666 /* if we have a new buffer compare it with the old one */
668 struct i915_buffer
*ibuf
= i915_buffer(buf
);
669 struct pipe_resource
*old_buf
= i915
->constants
[shader
];
670 struct i915_buffer
*old
= old_buf
? i915_buffer(old_buf
) : NULL
;
671 unsigned old_num
= i915
->current
.num_user_constants
[shader
];
673 new_num
= ibuf
->b
.b
.width0
/ 4 * sizeof(float);
675 if (old_num
== new_num
) {
679 /* XXX no point in running this code since st/mesa only uses user buffers */
680 /* Can't compare the buffer data since they are userbuffers */
681 else if (old
&& old
->free_on_destroy
)
682 diff
= memcmp(old
->data
, ibuf
->data
, ibuf
->b
.b
.width0
);
688 diff
= i915
->current
.num_user_constants
[shader
] != 0;
692 * flush before updateing the state.
694 if (diff
&& shader
== PIPE_SHADER_FRAGMENT
)
695 draw_flush(i915
->draw
);
697 pipe_resource_reference(&i915
->constants
[shader
], buf
);
698 i915
->current
.num_user_constants
[shader
] = new_num
;
701 i915
->dirty
|= shader
== PIPE_SHADER_VERTEX
? I915_NEW_VS_CONSTANTS
: I915_NEW_FS_CONSTANTS
;
706 i915_fixup_set_fragment_sampler_views(struct pipe_context
*pipe
,
708 struct pipe_sampler_view
**views
)
710 struct i915_context
*i915
= i915_context(pipe
);
713 for (i
= 0; i
< num
; i
++)
714 pipe_sampler_view_reference(&i915
->saved_sampler_views
[i
],
717 for (i
= num
; i
< i915
->saved_nr_sampler_views
; i
++)
718 pipe_sampler_view_reference(&i915
->saved_sampler_views
[i
],
721 i915
->saved_nr_sampler_views
= num
;
723 i915
->saved_set_sampler_views(pipe
, num
, views
);
726 static void i915_set_fragment_sampler_views(struct pipe_context
*pipe
,
728 struct pipe_sampler_view
**views
)
730 struct i915_context
*i915
= i915_context(pipe
);
733 assert(num
<= PIPE_MAX_SAMPLERS
);
735 /* Check for no-op */
736 if (num
== i915
->num_fragment_sampler_views
&&
737 !memcmp(i915
->fragment_sampler_views
, views
, num
* sizeof(struct pipe_sampler_view
*)))
740 /* Fixes wrong texture in texobj with VBUF */
741 draw_flush(i915
->draw
);
743 for (i
= 0; i
< num
; i
++)
744 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
747 for (i
= num
; i
< i915
->num_fragment_sampler_views
; i
++)
748 pipe_sampler_view_reference(&i915
->fragment_sampler_views
[i
],
751 i915
->num_fragment_sampler_views
= num
;
753 i915
->dirty
|= I915_NEW_SAMPLER_VIEW
;
757 i915_set_vertex_sampler_views(struct pipe_context
*pipe
,
759 struct pipe_sampler_view
**views
)
761 struct i915_context
*i915
= i915_context(pipe
);
764 assert(num
<= PIPE_MAX_VERTEX_SAMPLERS
);
766 /* Check for no-op */
767 if (num
== i915
->num_vertex_sampler_views
&&
768 !memcmp(i915
->vertex_sampler_views
, views
, num
* sizeof(struct pipe_sampler_view
*))) {
772 draw_flush(i915
->draw
);
774 for (i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; i
++) {
775 struct pipe_sampler_view
*view
= i
< num
? views
[i
] : NULL
;
777 pipe_sampler_view_reference(&i915
->vertex_sampler_views
[i
], view
);
780 i915
->num_vertex_sampler_views
= num
;
782 draw_set_sampler_views(i915
->draw
,
783 i915
->vertex_sampler_views
,
784 i915
->num_vertex_sampler_views
);
788 static struct pipe_sampler_view
*
789 i915_create_sampler_view(struct pipe_context
*pipe
,
790 struct pipe_resource
*texture
,
791 const struct pipe_sampler_view
*templ
)
793 struct pipe_sampler_view
*view
= CALLOC_STRUCT(pipe_sampler_view
);
797 view
->reference
.count
= 1;
798 view
->texture
= NULL
;
799 pipe_resource_reference(&view
->texture
, texture
);
800 view
->context
= pipe
;
808 i915_sampler_view_destroy(struct pipe_context
*pipe
,
809 struct pipe_sampler_view
*view
)
811 pipe_resource_reference(&view
->texture
, NULL
);
816 static void i915_set_framebuffer_state(struct pipe_context
*pipe
,
817 const struct pipe_framebuffer_state
*fb
)
819 struct i915_context
*i915
= i915_context(pipe
);
822 draw_flush(i915
->draw
);
824 i915
->framebuffer
.width
= fb
->width
;
825 i915
->framebuffer
.height
= fb
->height
;
826 i915
->framebuffer
.nr_cbufs
= fb
->nr_cbufs
;
827 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
828 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
],
829 i
< fb
->nr_cbufs
? fb
->cbufs
[i
] : NULL
);
831 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, fb
->zsbuf
);
833 i915
->dirty
|= I915_NEW_FRAMEBUFFER
;
838 static void i915_set_clip_state( struct pipe_context
*pipe
,
839 const struct pipe_clip_state
*clip
)
841 struct i915_context
*i915
= i915_context(pipe
);
842 draw_flush(i915
->draw
);
844 i915
->saved_clip
= *clip
;
846 draw_set_clip_state(i915
->draw
, clip
);
848 i915
->dirty
|= I915_NEW_CLIP
;
853 /* Called when driver state tracker notices changes to the viewport
856 static void i915_set_viewport_state( struct pipe_context
*pipe
,
857 const struct pipe_viewport_state
*viewport
)
859 struct i915_context
*i915
= i915_context(pipe
);
861 i915
->viewport
= *viewport
; /* struct copy */
863 /* pass the viewport info to the draw module */
864 draw_set_viewport_state(i915
->draw
, &i915
->viewport
);
866 i915
->dirty
|= I915_NEW_VIEWPORT
;
871 i915_create_rasterizer_state(struct pipe_context
*pipe
,
872 const struct pipe_rasterizer_state
*rasterizer
)
874 struct i915_rasterizer_state
*cso
= CALLOC_STRUCT( i915_rasterizer_state
);
876 cso
->templ
= *rasterizer
;
877 cso
->color_interp
= rasterizer
->flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
878 cso
->light_twoside
= rasterizer
->light_twoside
;
879 cso
->ds
[0].u
= _3DSTATE_DEPTH_OFFSET_SCALE
;
880 cso
->ds
[1].f
= rasterizer
->offset_scale
;
881 if (rasterizer
->poly_stipple_enable
) {
882 cso
->st
|= ST1_ENABLE
;
885 if (rasterizer
->scissor
)
886 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
;
888 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
;
890 switch (rasterizer
->cull_face
) {
892 cso
->LIS4
|= S4_CULLMODE_NONE
;
894 case PIPE_FACE_FRONT
:
895 if (rasterizer
->front_ccw
)
896 cso
->LIS4
|= S4_CULLMODE_CCW
;
898 cso
->LIS4
|= S4_CULLMODE_CW
;
901 if (rasterizer
->front_ccw
)
902 cso
->LIS4
|= S4_CULLMODE_CW
;
904 cso
->LIS4
|= S4_CULLMODE_CCW
;
906 case PIPE_FACE_FRONT_AND_BACK
:
907 cso
->LIS4
|= S4_CULLMODE_BOTH
;
912 int line_width
= CLAMP((int)(rasterizer
->line_width
* 2), 1, 0xf);
914 cso
->LIS4
|= line_width
<< S4_LINE_WIDTH_SHIFT
;
916 if (rasterizer
->line_smooth
)
917 cso
->LIS4
|= S4_LINE_ANTIALIAS_ENABLE
;
921 int point_size
= CLAMP((int) rasterizer
->point_size
, 1, 0xff);
923 cso
->LIS4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
926 if (rasterizer
->flatshade
) {
927 cso
->LIS4
|= (S4_FLATSHADE_ALPHA
|
929 S4_FLATSHADE_SPECULAR
);
932 cso
->LIS7
= fui( rasterizer
->offset_units
);
938 static void i915_bind_rasterizer_state( struct pipe_context
*pipe
,
941 struct i915_context
*i915
= i915_context(pipe
);
943 i915
->rasterizer
= (struct i915_rasterizer_state
*)raster
;
945 /* pass-through to draw module */
946 draw_set_rasterizer_state(i915
->draw
,
947 (i915
->rasterizer
? &(i915
->rasterizer
->templ
) : NULL
),
950 i915
->dirty
|= I915_NEW_RASTERIZER
;
953 static void i915_delete_rasterizer_state(struct pipe_context
*pipe
,
959 static void i915_set_vertex_buffers(struct pipe_context
*pipe
,
961 const struct pipe_vertex_buffer
*buffers
)
963 struct i915_context
*i915
= i915_context(pipe
);
964 struct draw_context
*draw
= i915
->draw
;
967 util_copy_vertex_buffers(i915
->saved_vertex_buffers
,
968 &i915
->saved_nr_vertex_buffers
,
971 /* XXX doesn't look like this is needed */
973 for (i
= 0; i
< i915
->num_vertex_buffers
; i
++) {
974 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
978 /* pass-through to draw module */
979 draw_set_vertex_buffers(draw
, count
, buffers
);
982 for (i
= 0; i
< count
; i
++) {
983 void *buf
= i915_buffer(buffers
[i
].buffer
)->data
;
984 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
989 i915_create_vertex_elements_state(struct pipe_context
*pipe
,
991 const struct pipe_vertex_element
*attribs
)
993 struct i915_velems_state
*velems
;
994 assert(count
<= PIPE_MAX_ATTRIBS
);
995 velems
= (struct i915_velems_state
*) MALLOC(sizeof(struct i915_velems_state
));
997 velems
->count
= count
;
998 memcpy(velems
->velem
, attribs
, sizeof(*attribs
) * count
);
1004 i915_bind_vertex_elements_state(struct pipe_context
*pipe
,
1007 struct i915_context
*i915
= i915_context(pipe
);
1008 struct i915_velems_state
*i915_velems
= (struct i915_velems_state
*) velems
;
1010 i915
->saved_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
));
1035 /* pass-through to draw module */
1036 draw_set_index_buffer(i915
->draw
, ib
);
1040 i915_set_sample_mask(struct pipe_context
*pipe
,
1041 unsigned sample_mask
)
1046 i915_init_state_functions( struct i915_context
*i915
)
1048 i915
->base
.create_blend_state
= i915_create_blend_state
;
1049 i915
->base
.bind_blend_state
= i915_bind_blend_state
;
1050 i915
->base
.delete_blend_state
= i915_delete_blend_state
;
1052 i915
->base
.create_sampler_state
= i915_create_sampler_state
;
1053 i915
->base
.bind_fragment_sampler_states
= i915_bind_fragment_sampler_states
;
1054 i915
->base
.bind_vertex_sampler_states
= i915_bind_vertex_sampler_states
;
1055 i915
->base
.delete_sampler_state
= i915_delete_sampler_state
;
1057 i915
->base
.create_depth_stencil_alpha_state
= i915_create_depth_stencil_state
;
1058 i915
->base
.bind_depth_stencil_alpha_state
= i915_bind_depth_stencil_state
;
1059 i915
->base
.delete_depth_stencil_alpha_state
= i915_delete_depth_stencil_state
;
1061 i915
->base
.create_rasterizer_state
= i915_create_rasterizer_state
;
1062 i915
->base
.bind_rasterizer_state
= i915_bind_rasterizer_state
;
1063 i915
->base
.delete_rasterizer_state
= i915_delete_rasterizer_state
;
1064 i915
->base
.create_fs_state
= i915_create_fs_state
;
1065 i915
->base
.bind_fs_state
= i915_bind_fs_state
;
1066 i915
->base
.delete_fs_state
= i915_delete_fs_state
;
1067 i915
->base
.create_vs_state
= i915_create_vs_state
;
1068 i915
->base
.bind_vs_state
= i915_bind_vs_state
;
1069 i915
->base
.delete_vs_state
= i915_delete_vs_state
;
1070 i915
->base
.create_vertex_elements_state
= i915_create_vertex_elements_state
;
1071 i915
->base
.bind_vertex_elements_state
= i915_bind_vertex_elements_state
;
1072 i915
->base
.delete_vertex_elements_state
= i915_delete_vertex_elements_state
;
1074 i915
->base
.set_blend_color
= i915_set_blend_color
;
1075 i915
->base
.set_stencil_ref
= i915_set_stencil_ref
;
1076 i915
->base
.set_clip_state
= i915_set_clip_state
;
1077 i915
->base
.set_sample_mask
= i915_set_sample_mask
;
1078 i915
->base
.set_constant_buffer
= i915_set_constant_buffer
;
1079 i915
->base
.set_framebuffer_state
= i915_set_framebuffer_state
;
1081 i915
->base
.set_polygon_stipple
= i915_set_polygon_stipple
;
1082 i915
->base
.set_scissor_state
= i915_set_scissor_state
;
1083 i915
->base
.set_fragment_sampler_views
= i915_set_fragment_sampler_views
;
1084 i915
->base
.set_vertex_sampler_views
= i915_set_vertex_sampler_views
;
1085 i915
->base
.create_sampler_view
= i915_create_sampler_view
;
1086 i915
->base
.sampler_view_destroy
= i915_sampler_view_destroy
;
1087 i915
->base
.set_viewport_state
= i915_set_viewport_state
;
1088 i915
->base
.set_vertex_buffers
= i915_set_vertex_buffers
;
1089 i915
->base
.set_index_buffer
= i915_set_index_buffer
;
1090 i915
->base
.redefine_user_buffer
= u_default_redefine_user_buffer
;
1094 i915_init_fixup_state_functions( struct i915_context
*i915
)
1096 i915
->saved_bind_fs_state
= i915
->base
.bind_fs_state
;
1097 i915
->base
.bind_fs_state
= i915_fixup_bind_fs_state
;
1098 i915
->saved_bind_sampler_states
= i915
->base
.bind_fragment_sampler_states
;
1099 i915
->base
.bind_fragment_sampler_states
= i915_fixup_bind_sampler_states
;
1100 i915
->saved_set_sampler_views
= i915
->base
.set_fragment_sampler_views
;
1101 i915
->base
.set_fragment_sampler_views
= i915_fixup_set_fragment_sampler_views
;