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 "pipe/internal/p_winsys_screen.h"
34 #include "pipe/p_inlines.h"
35 #include "util/u_math.h"
36 #include "util/u_memory.h"
37 #include "tgsi/tgsi_parse.h"
39 #include "i915_context.h"
41 #include "i915_state.h"
42 #include "i915_state_inlines.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
;
62 case PIPE_TEX_WRAP_MIRRORED_REPEAT:
63 return TEXCOORDMODE_MIRROR;
66 return TEXCOORDMODE_WRAP
;
70 static unsigned translate_img_filter( unsigned filter
)
73 case PIPE_TEX_FILTER_NEAREST
:
74 return FILTER_NEAREST
;
75 case PIPE_TEX_FILTER_LINEAR
:
79 return FILTER_NEAREST
;
83 static unsigned translate_mip_filter( unsigned filter
)
86 case PIPE_TEX_MIPFILTER_NONE
:
87 return MIPFILTER_NONE
;
88 case PIPE_TEX_MIPFILTER_NEAREST
:
89 return MIPFILTER_NEAREST
;
90 case PIPE_TEX_MIPFILTER_LINEAR
:
91 return MIPFILTER_LINEAR
;
94 return MIPFILTER_NONE
;
99 /* None of this state is actually used for anything yet.
102 i915_create_blend_state(struct pipe_context
*pipe
,
103 const struct pipe_blend_state
*blend
)
105 struct i915_blend_state
*cso_data
= CALLOC_STRUCT( i915_blend_state
);
108 unsigned eqRGB
= blend
->rgb_func
;
109 unsigned srcRGB
= blend
->rgb_src_factor
;
110 unsigned dstRGB
= blend
->rgb_dst_factor
;
112 unsigned eqA
= blend
->alpha_func
;
113 unsigned srcA
= blend
->alpha_src_factor
;
114 unsigned dstA
= blend
->alpha_dst_factor
;
116 /* Special handling for MIN/MAX filter modes handled at
117 * state_tracker level.
120 if (srcA
!= srcRGB
||
124 cso_data
->iab
= (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
|
128 IAB_MODIFY_SRC_FACTOR
|
129 IAB_MODIFY_DST_FACTOR
|
130 SRC_ABLND_FACT(i915_translate_blend_factor(srcA
)) |
131 DST_ABLND_FACT(i915_translate_blend_factor(dstA
)) |
132 (i915_translate_blend_func(eqA
) << IAB_FUNC_SHIFT
));
135 cso_data
->iab
= (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD
|
141 cso_data
->modes4
|= (_3DSTATE_MODES_4_CMD
|
142 ENABLE_LOGIC_OP_FUNC
|
143 LOGIC_OP_FUNC(i915_translate_logic_op(blend
->logicop_func
)));
145 if (blend
->logicop_enable
)
146 cso_data
->LIS5
|= S5_LOGICOP_ENABLE
;
149 cso_data
->LIS5
|= S5_COLOR_DITHER_ENABLE
;
151 if ((blend
->colormask
& PIPE_MASK_R
) == 0)
152 cso_data
->LIS5
|= S5_WRITEDISABLE_RED
;
154 if ((blend
->colormask
& PIPE_MASK_G
) == 0)
155 cso_data
->LIS5
|= S5_WRITEDISABLE_GREEN
;
157 if ((blend
->colormask
& PIPE_MASK_B
) == 0)
158 cso_data
->LIS5
|= S5_WRITEDISABLE_BLUE
;
160 if ((blend
->colormask
& PIPE_MASK_A
) == 0)
161 cso_data
->LIS5
|= S5_WRITEDISABLE_ALPHA
;
163 if (blend
->blend_enable
) {
164 unsigned funcRGB
= blend
->rgb_func
;
165 unsigned srcRGB
= blend
->rgb_src_factor
;
166 unsigned dstRGB
= blend
->rgb_dst_factor
;
168 cso_data
->LIS6
|= (S6_CBUF_BLEND_ENABLE
|
169 SRC_BLND_FACT(i915_translate_blend_factor(srcRGB
)) |
170 DST_BLND_FACT(i915_translate_blend_factor(dstRGB
)) |
171 (i915_translate_blend_func(funcRGB
) << S6_CBUF_BLEND_FUNC_SHIFT
));
177 static void i915_bind_blend_state(struct pipe_context
*pipe
,
180 struct i915_context
*i915
= i915_context(pipe
);
181 draw_flush(i915
->draw
);
183 i915
->blend
= (struct i915_blend_state
*)blend
;
185 i915
->dirty
|= I915_NEW_BLEND
;
189 static void i915_delete_blend_state(struct pipe_context
*pipe
, void *blend
)
194 static void i915_set_blend_color( struct pipe_context
*pipe
,
195 const struct pipe_blend_color
*blend_color
)
197 struct i915_context
*i915
= i915_context(pipe
);
198 draw_flush(i915
->draw
);
200 i915
->blend_color
= *blend_color
;
202 i915
->dirty
|= I915_NEW_BLEND
;
206 i915_create_sampler_state(struct pipe_context
*pipe
,
207 const struct pipe_sampler_state
*sampler
)
209 struct i915_sampler_state
*cso
= CALLOC_STRUCT( i915_sampler_state
);
210 const unsigned ws
= sampler
->wrap_s
;
211 const unsigned wt
= sampler
->wrap_t
;
212 const unsigned wr
= sampler
->wrap_r
;
213 unsigned minFilt
, magFilt
;
216 cso
->templ
= sampler
;
218 mipFilt
= translate_mip_filter(sampler
->min_mip_filter
);
219 minFilt
= translate_img_filter( sampler
->min_img_filter
);
220 magFilt
= translate_img_filter( sampler
->mag_img_filter
);
222 if (sampler
->max_anisotropy
> 1.0)
223 minFilt
= magFilt
= FILTER_ANISOTROPIC
;
225 if (sampler
->max_anisotropy
> 2.0) {
226 cso
->state
[0] |= SS2_MAX_ANISO_4
;
230 int b
= (int) (sampler
->lod_bias
* 16.0);
231 b
= CLAMP(b
, -256, 255);
232 cso
->state
[0] |= ((b
<< SS2_LOD_BIAS_SHIFT
) & SS2_LOD_BIAS_MASK
);
237 if (sampler
->compare_mode
== PIPE_TEX_COMPARE_R_TO_TEXTURE
)
239 cso
->state
[0] |= (SS2_SHADOW_ENABLE
|
240 i915_translate_compare_func(sampler
->compare_func
));
242 minFilt
= FILTER_4X4_FLAT
;
243 magFilt
= FILTER_4X4_FLAT
;
246 cso
->state
[0] |= ((minFilt
<< SS2_MIN_FILTER_SHIFT
) |
247 (mipFilt
<< SS2_MIP_FILTER_SHIFT
) |
248 (magFilt
<< SS2_MAG_FILTER_SHIFT
));
251 ((translate_wrap_mode(ws
) << SS3_TCX_ADDR_MODE_SHIFT
) |
252 (translate_wrap_mode(wt
) << SS3_TCY_ADDR_MODE_SHIFT
) |
253 (translate_wrap_mode(wr
) << SS3_TCZ_ADDR_MODE_SHIFT
));
255 if (sampler
->normalized_coords
)
256 cso
->state
[1] |= SS3_NORMALIZED_COORDS
;
259 int minlod
= (int) (16.0 * sampler
->min_lod
);
260 int maxlod
= (int) (16.0 * sampler
->max_lod
);
261 minlod
= CLAMP(minlod
, 0, 16 * 11);
262 maxlod
= CLAMP(maxlod
, 0, 16 * 11);
267 cso
->minlod
= minlod
;
268 cso
->maxlod
= maxlod
;
272 ubyte r
= float_to_ubyte(sampler
->border_color
[0]);
273 ubyte g
= float_to_ubyte(sampler
->border_color
[1]);
274 ubyte b
= float_to_ubyte(sampler
->border_color
[2]);
275 ubyte a
= float_to_ubyte(sampler
->border_color
[3]);
276 cso
->state
[2] = I915PACKCOLOR8888(r
, g
, b
, a
);
281 static void i915_bind_sampler_states(struct pipe_context
*pipe
,
282 unsigned num
, void **sampler
)
284 struct i915_context
*i915
= i915_context(pipe
);
287 assert(num
<= PIPE_MAX_SAMPLERS
);
289 /* Check for no-op */
290 if (num
== i915
->num_samplers
&&
291 !memcmp(i915
->sampler
, sampler
, num
* sizeof(void *)))
294 draw_flush(i915
->draw
);
296 for (i
= 0; i
< num
; ++i
)
297 i915
->sampler
[i
] = sampler
[i
];
298 for (i
= num
; i
< PIPE_MAX_SAMPLERS
; ++i
)
299 i915
->sampler
[i
] = NULL
;
301 i915
->num_samplers
= num
;
303 i915
->dirty
|= I915_NEW_SAMPLER
;
306 static void i915_delete_sampler_state(struct pipe_context
*pipe
,
313 /** XXX move someday? Or consolidate all these simple state setters
318 i915_create_depth_stencil_state(struct pipe_context
*pipe
,
319 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
321 struct i915_depth_stencil_state
*cso
= CALLOC_STRUCT( i915_depth_stencil_state
);
324 int testmask
= depth_stencil
->stencil
[0].valuemask
& 0xff;
325 int writemask
= depth_stencil
->stencil
[0].writemask
& 0xff;
327 cso
->stencil_modes4
|= (_3DSTATE_MODES_4_CMD
|
328 ENABLE_STENCIL_TEST_MASK
|
329 STENCIL_TEST_MASK(testmask
) |
330 ENABLE_STENCIL_WRITE_MASK
|
331 STENCIL_WRITE_MASK(writemask
));
334 if (depth_stencil
->stencil
[0].enabled
) {
335 int test
= i915_translate_compare_func(depth_stencil
->stencil
[0].func
);
336 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].fail_op
);
337 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zfail_op
);
338 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[0].zpass_op
);
339 int ref
= depth_stencil
->stencil
[0].ref_value
& 0xff;
341 cso
->stencil_LIS5
|= (S5_STENCIL_TEST_ENABLE
|
342 S5_STENCIL_WRITE_ENABLE
|
343 (ref
<< S5_STENCIL_REF_SHIFT
) |
344 (test
<< S5_STENCIL_TEST_FUNC_SHIFT
) |
345 (fop
<< S5_STENCIL_FAIL_SHIFT
) |
346 (dfop
<< S5_STENCIL_PASS_Z_FAIL_SHIFT
) |
347 (dpop
<< S5_STENCIL_PASS_Z_PASS_SHIFT
));
350 if (depth_stencil
->stencil
[1].enabled
) {
351 int test
= i915_translate_compare_func(depth_stencil
->stencil
[1].func
);
352 int fop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].fail_op
);
353 int dfop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zfail_op
);
354 int dpop
= i915_translate_stencil_op(depth_stencil
->stencil
[1].zpass_op
);
355 int ref
= depth_stencil
->stencil
[1].ref_value
& 0xff;
356 int tmask
= depth_stencil
->stencil
[1].valuemask
& 0xff;
357 int wmask
= depth_stencil
->stencil
[1].writemask
& 0xff;
359 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
360 BFO_ENABLE_STENCIL_FUNCS
|
361 BFO_ENABLE_STENCIL_TWO_SIDE
|
362 BFO_ENABLE_STENCIL_REF
|
363 BFO_STENCIL_TWO_SIDE
|
364 (ref
<< BFO_STENCIL_REF_SHIFT
) |
365 (test
<< BFO_STENCIL_TEST_SHIFT
) |
366 (fop
<< BFO_STENCIL_FAIL_SHIFT
) |
367 (dfop
<< BFO_STENCIL_PASS_Z_FAIL_SHIFT
) |
368 (dpop
<< BFO_STENCIL_PASS_Z_PASS_SHIFT
));
370 cso
->bfo
[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS
|
371 BFM_ENABLE_STENCIL_TEST_MASK
|
372 BFM_ENABLE_STENCIL_WRITE_MASK
|
373 (tmask
<< BFM_STENCIL_TEST_MASK_SHIFT
) |
374 (wmask
<< BFM_STENCIL_WRITE_MASK_SHIFT
));
377 /* This actually disables two-side stencil: The bit set is a
378 * modify-enable bit to indicate we are changing the two-side
379 * setting. Then there is a symbolic zero to show that we are
380 * setting the flag to zero/off.
382 cso
->bfo
[0] = (_3DSTATE_BACKFACE_STENCIL_OPS
|
383 BFO_ENABLE_STENCIL_TWO_SIDE
|
388 if (depth_stencil
->depth
.enabled
) {
389 int func
= i915_translate_compare_func(depth_stencil
->depth
.func
);
391 cso
->depth_LIS6
|= (S6_DEPTH_TEST_ENABLE
|
392 (func
<< S6_DEPTH_TEST_FUNC_SHIFT
));
394 if (depth_stencil
->depth
.writemask
)
395 cso
->depth_LIS6
|= S6_DEPTH_WRITE_ENABLE
;
398 if (depth_stencil
->alpha
.enabled
) {
399 int test
= i915_translate_compare_func(depth_stencil
->alpha
.func
);
400 ubyte refByte
= float_to_ubyte(depth_stencil
->alpha
.ref_value
);
402 cso
->depth_LIS6
|= (S6_ALPHA_TEST_ENABLE
|
403 (test
<< S6_ALPHA_TEST_FUNC_SHIFT
) |
404 (((unsigned) refByte
) << S6_ALPHA_REF_SHIFT
));
410 static void i915_bind_depth_stencil_state(struct pipe_context
*pipe
,
413 struct i915_context
*i915
= i915_context(pipe
);
414 draw_flush(i915
->draw
);
416 i915
->depth_stencil
= (const struct i915_depth_stencil_state
*)depth_stencil
;
418 i915
->dirty
|= I915_NEW_DEPTH_STENCIL
;
421 static void i915_delete_depth_stencil_state(struct pipe_context
*pipe
,
428 static void i915_set_scissor_state( struct pipe_context
*pipe
,
429 const struct pipe_scissor_state
*scissor
)
431 struct i915_context
*i915
= i915_context(pipe
);
432 draw_flush(i915
->draw
);
434 memcpy( &i915
->scissor
, scissor
, sizeof(*scissor
) );
435 i915
->dirty
|= I915_NEW_SCISSOR
;
439 static void i915_set_polygon_stipple( struct pipe_context
*pipe
,
440 const struct pipe_poly_stipple
*stipple
)
447 i915_create_fs_state(struct pipe_context
*pipe
,
448 const struct pipe_shader_state
*templ
)
450 struct i915_context
*i915
= i915_context(pipe
);
451 struct i915_fragment_shader
*ifs
= CALLOC_STRUCT(i915_fragment_shader
);
455 ifs
->state
.tokens
= tgsi_dup_tokens(templ
->tokens
);
457 tgsi_scan_shader(templ
->tokens
, &ifs
->info
);
459 /* The shader's compiled to i915 instructions here */
460 i915_translate_fragment_program(i915
, ifs
);
466 i915_bind_fs_state(struct pipe_context
*pipe
, void *shader
)
468 struct i915_context
*i915
= i915_context(pipe
);
469 draw_flush(i915
->draw
);
471 i915
->fs
= (struct i915_fragment_shader
*) shader
;
473 i915
->dirty
|= I915_NEW_FS
;
477 void i915_delete_fs_state(struct pipe_context
*pipe
, void *shader
)
479 struct i915_fragment_shader
*ifs
= (struct i915_fragment_shader
*) shader
;
483 ifs
->program_len
= 0;
485 FREE((struct tgsi_token
*)ifs
->state
.tokens
);
492 i915_create_vs_state(struct pipe_context
*pipe
,
493 const struct pipe_shader_state
*templ
)
495 struct i915_context
*i915
= i915_context(pipe
);
497 /* just pass-through to draw module */
498 return draw_create_vertex_shader(i915
->draw
, templ
);
501 static void i915_bind_vs_state(struct pipe_context
*pipe
, void *shader
)
503 struct i915_context
*i915
= i915_context(pipe
);
505 /* just pass-through to draw module */
506 draw_bind_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
508 i915
->dirty
|= I915_NEW_VS
;
511 static void i915_delete_vs_state(struct pipe_context
*pipe
, void *shader
)
513 struct i915_context
*i915
= i915_context(pipe
);
515 /* just pass-through to draw module */
516 draw_delete_vertex_shader(i915
->draw
, (struct draw_vertex_shader
*) shader
);
519 static void i915_set_constant_buffer(struct pipe_context
*pipe
,
520 uint shader
, uint index
,
521 const struct pipe_constant_buffer
*buf
)
523 struct i915_context
*i915
= i915_context(pipe
);
524 struct pipe_screen
*screen
= pipe
->screen
;
525 draw_flush(i915
->draw
);
527 assert(shader
< PIPE_SHADER_TYPES
);
530 /* Make a copy of shader constants.
531 * During fragment program translation we may add additional
532 * constants to the array.
534 * We want to consider the situation where some user constants
535 * (ex: a material color) may change frequently but the shader program
536 * stays the same. In that case we should only be updating the first
537 * N constants, leaving any extras from shader translation alone.
541 if (buf
->buffer
&& buf
->buffer
->size
&&
542 (mapped
= pipe_buffer_map(screen
, buf
->buffer
,
543 PIPE_BUFFER_USAGE_CPU_READ
))) {
544 memcpy(i915
->current
.constants
[shader
], mapped
, buf
->buffer
->size
);
545 pipe_buffer_unmap(screen
, buf
->buffer
);
546 i915
->current
.num_user_constants
[shader
]
547 = buf
->buffer
->size
/ (4 * sizeof(float));
550 i915
->current
.num_user_constants
[shader
] = 0;
554 i915
->dirty
|= I915_NEW_CONSTANTS
;
558 static void i915_set_sampler_textures(struct pipe_context
*pipe
,
560 struct pipe_texture
**texture
)
562 struct i915_context
*i915
= i915_context(pipe
);
565 assert(num
<= PIPE_MAX_SAMPLERS
);
567 /* Check for no-op */
568 if (num
== i915
->num_textures
&&
569 !memcmp(i915
->texture
, texture
, num
* sizeof(struct pipe_texture
*)))
572 /* Fixes wrong texture in texobj with VBUF */
573 draw_flush(i915
->draw
);
575 for (i
= 0; i
< num
; i
++)
576 pipe_texture_reference((struct pipe_texture
**) &i915
->texture
[i
],
579 for (i
= num
; i
< i915
->num_textures
; i
++)
580 pipe_texture_reference((struct pipe_texture
**) &i915
->texture
[i
],
583 i915
->num_textures
= num
;
585 i915
->dirty
|= I915_NEW_TEXTURE
;
590 static void i915_set_framebuffer_state(struct pipe_context
*pipe
,
591 const struct pipe_framebuffer_state
*fb
)
593 struct i915_context
*i915
= i915_context(pipe
);
596 draw_flush(i915
->draw
);
598 i915
->framebuffer
.width
= fb
->width
;
599 i915
->framebuffer
.height
= fb
->height
;
600 i915
->framebuffer
.nr_cbufs
= fb
->nr_cbufs
;
601 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
602 pipe_surface_reference(&i915
->framebuffer
.cbufs
[i
], fb
->cbufs
[i
]);
604 pipe_surface_reference(&i915
->framebuffer
.zsbuf
, fb
->zsbuf
);
606 i915
->dirty
|= I915_NEW_FRAMEBUFFER
;
611 static void i915_set_clip_state( struct pipe_context
*pipe
,
612 const struct pipe_clip_state
*clip
)
614 struct i915_context
*i915
= i915_context(pipe
);
615 draw_flush(i915
->draw
);
617 draw_set_clip_state(i915
->draw
, clip
);
619 i915
->dirty
|= I915_NEW_CLIP
;
624 /* Called when driver state tracker notices changes to the viewport
627 static void i915_set_viewport_state( struct pipe_context
*pipe
,
628 const struct pipe_viewport_state
*viewport
)
630 struct i915_context
*i915
= i915_context(pipe
);
632 i915
->viewport
= *viewport
; /* struct copy */
634 /* pass the viewport info to the draw module */
635 draw_set_viewport_state(i915
->draw
, &i915
->viewport
);
637 i915
->dirty
|= I915_NEW_VIEWPORT
;
642 i915_create_rasterizer_state(struct pipe_context
*pipe
,
643 const struct pipe_rasterizer_state
*rasterizer
)
645 struct i915_rasterizer_state
*cso
= CALLOC_STRUCT( i915_rasterizer_state
);
647 cso
->templ
= rasterizer
;
648 cso
->color_interp
= rasterizer
->flatshade
? INTERP_CONSTANT
: INTERP_LINEAR
;
649 cso
->light_twoside
= rasterizer
->light_twoside
;
650 cso
->ds
[0].u
= _3DSTATE_DEPTH_OFFSET_SCALE
;
651 cso
->ds
[1].f
= rasterizer
->offset_scale
;
652 if (rasterizer
->poly_stipple_enable
) {
653 cso
->st
|= ST1_ENABLE
;
656 if (rasterizer
->scissor
)
657 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| ENABLE_SCISSOR_RECT
;
659 cso
->sc
[0] = _3DSTATE_SCISSOR_ENABLE_CMD
| DISABLE_SCISSOR_RECT
;
661 switch (rasterizer
->cull_mode
) {
662 case PIPE_WINDING_NONE
:
663 cso
->LIS4
|= S4_CULLMODE_NONE
;
665 case PIPE_WINDING_CW
:
666 cso
->LIS4
|= S4_CULLMODE_CW
;
668 case PIPE_WINDING_CCW
:
669 cso
->LIS4
|= S4_CULLMODE_CCW
;
671 case PIPE_WINDING_BOTH
:
672 cso
->LIS4
|= S4_CULLMODE_BOTH
;
677 int line_width
= CLAMP((int)(rasterizer
->line_width
* 2), 1, 0xf);
679 cso
->LIS4
|= line_width
<< S4_LINE_WIDTH_SHIFT
;
681 if (rasterizer
->line_smooth
)
682 cso
->LIS4
|= S4_LINE_ANTIALIAS_ENABLE
;
686 int point_size
= CLAMP((int) rasterizer
->point_size
, 1, 0xff);
688 cso
->LIS4
|= point_size
<< S4_POINT_WIDTH_SHIFT
;
691 if (rasterizer
->flatshade
) {
692 cso
->LIS4
|= (S4_FLATSHADE_ALPHA
|
694 S4_FLATSHADE_SPECULAR
);
697 cso
->LIS7
= fui( rasterizer
->offset_units
);
703 static void i915_bind_rasterizer_state( struct pipe_context
*pipe
,
706 struct i915_context
*i915
= i915_context(pipe
);
708 i915
->rasterizer
= (struct i915_rasterizer_state
*)raster
;
710 /* pass-through to draw module */
711 draw_set_rasterizer_state(i915
->draw
,
712 (i915
->rasterizer
? i915
->rasterizer
->templ
: NULL
));
714 i915
->dirty
|= I915_NEW_RASTERIZER
;
717 static void i915_delete_rasterizer_state(struct pipe_context
*pipe
,
723 static void i915_set_vertex_buffers(struct pipe_context
*pipe
,
725 const struct pipe_vertex_buffer
*buffers
)
727 struct i915_context
*i915
= i915_context(pipe
);
728 /* Because we change state before the draw_set_vertex_buffers call
729 * we need a flush here, just to be sure.
731 draw_flush(i915
->draw
);
733 memcpy(i915
->vertex_buffer
, buffers
, count
* sizeof(buffers
[0]));
734 i915
->num_vertex_buffers
= count
;
736 /* pass-through to draw module */
737 draw_set_vertex_buffers(i915
->draw
, count
, buffers
);
740 static void i915_set_vertex_elements(struct pipe_context
*pipe
,
742 const struct pipe_vertex_element
*elements
)
744 struct i915_context
*i915
= i915_context(pipe
);
745 /* Because we change state before the draw_set_vertex_buffers call
746 * we need a flush here, just to be sure.
748 draw_flush(i915
->draw
);
750 i915
->num_vertex_elements
= count
;
751 /* pass-through to draw module */
752 draw_set_vertex_elements(i915
->draw
, count
, elements
);
757 i915_init_state_functions( struct i915_context
*i915
)
759 i915
->base
.create_blend_state
= i915_create_blend_state
;
760 i915
->base
.bind_blend_state
= i915_bind_blend_state
;
761 i915
->base
.delete_blend_state
= i915_delete_blend_state
;
763 i915
->base
.create_sampler_state
= i915_create_sampler_state
;
764 i915
->base
.bind_fragment_sampler_states
= i915_bind_sampler_states
;
765 i915
->base
.delete_sampler_state
= i915_delete_sampler_state
;
767 i915
->base
.create_depth_stencil_alpha_state
= i915_create_depth_stencil_state
;
768 i915
->base
.bind_depth_stencil_alpha_state
= i915_bind_depth_stencil_state
;
769 i915
->base
.delete_depth_stencil_alpha_state
= i915_delete_depth_stencil_state
;
771 i915
->base
.create_rasterizer_state
= i915_create_rasterizer_state
;
772 i915
->base
.bind_rasterizer_state
= i915_bind_rasterizer_state
;
773 i915
->base
.delete_rasterizer_state
= i915_delete_rasterizer_state
;
774 i915
->base
.create_fs_state
= i915_create_fs_state
;
775 i915
->base
.bind_fs_state
= i915_bind_fs_state
;
776 i915
->base
.delete_fs_state
= i915_delete_fs_state
;
777 i915
->base
.create_vs_state
= i915_create_vs_state
;
778 i915
->base
.bind_vs_state
= i915_bind_vs_state
;
779 i915
->base
.delete_vs_state
= i915_delete_vs_state
;
781 i915
->base
.set_blend_color
= i915_set_blend_color
;
782 i915
->base
.set_clip_state
= i915_set_clip_state
;
783 i915
->base
.set_constant_buffer
= i915_set_constant_buffer
;
784 i915
->base
.set_framebuffer_state
= i915_set_framebuffer_state
;
786 i915
->base
.set_polygon_stipple
= i915_set_polygon_stipple
;
787 i915
->base
.set_scissor_state
= i915_set_scissor_state
;
788 i915
->base
.set_fragment_sampler_textures
= i915_set_sampler_textures
;
789 i915
->base
.set_viewport_state
= i915_set_viewport_state
;
790 i915
->base
.set_vertex_buffers
= i915_set_vertex_buffers
;
791 i915
->base
.set_vertex_elements
= i915_set_vertex_elements
;