1 /**************************************************************************
3 * Copyright 2003 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 #include "i915_batch.h"
29 #include "i915_state_inlines.h"
30 #include "i915_context.h"
32 #include "i915_state.h"
33 #include "util/u_math.h"
34 #include "util/u_memory.h"
35 #include "util/u_pack_color.h"
37 #define FILE_DEBUG_FLAG DEBUG_STATE
39 /* State that we have chosen to store in the DYNAMIC segment of the
40 * i915 indirect state mechanism.
42 * Can't cache these in the way we do the static state, as there is no
43 * start/size in the command packet, instead an 'end' value that gets
46 * Additionally, there seems to be a requirement to re-issue the full
47 * (active) state every time a 4kb boundary is crossed.
50 static INLINE
void set_dynamic_indirect(struct i915_context
*i915
,
57 for (i
= 0; i
< dwords
; i
++)
58 i915
->current
.dynamic
[offset
+ i
] = src
[i
];
60 i915
->hardware_dirty
|= I915_HW_DYNAMIC
;
65 /***********************************************************************
66 * Modes4: stencil masks and logicop
68 static void upload_MODES4(struct i915_context
*i915
)
74 modes4
|= i915
->depth_stencil
->stencil_modes4
;
78 modes4
|= i915
->blend
->modes4
;
80 /* Always, so that we know when state is in-active:
82 set_dynamic_indirect(i915
,
88 const struct i915_tracked_state i915_upload_MODES4
= {
91 I915_NEW_BLEND
| I915_NEW_DEPTH_STENCIL
96 /***********************************************************************
98 static void upload_BFO(struct i915_context
*i915
)
101 bfo
[0] = i915
->depth_stencil
->bfo
[0];
102 bfo
[1] = i915
->depth_stencil
->bfo
[1];
103 /* I don't get it only allowed to set a ref mask when the enable bit is set? */
104 if (bfo
[0] & BFO_ENABLE_STENCIL_REF
) {
105 bfo
[0] |= i915
->stencil_ref
.ref_value
[1] << BFO_STENCIL_REF_SHIFT
;
108 set_dynamic_indirect(i915
,
114 const struct i915_tracked_state i915_upload_BFO
= {
117 I915_NEW_DEPTH_STENCIL
122 /***********************************************************************
124 static void upload_BLENDCOLOR(struct i915_context
*i915
)
128 memset(bc
, 0, sizeof(bc
));
133 const float *color
= i915
->blend_color
.color
;
135 bc
[0] = _3DSTATE_CONST_BLEND_COLOR_CMD
;
136 bc
[1] = pack_ui32_float4(color
[0],
142 set_dynamic_indirect(i915
,
148 const struct i915_tracked_state i915_upload_BLENDCOLOR
= {
156 /***********************************************************************
158 static void upload_IAB(struct i915_context
*i915
)
160 unsigned iab
= i915
->blend
->iab
;
162 set_dynamic_indirect(i915
,
168 const struct i915_tracked_state i915_upload_IAB
= {
176 /***********************************************************************
178 static void upload_DEPTHSCALE(struct i915_context
*i915
)
180 set_dynamic_indirect(i915
,
181 I915_DYNAMIC_DEPTHSCALE_0
,
182 &(i915
->rasterizer
->ds
[0].u
),
186 const struct i915_tracked_state i915_upload_DEPTHSCALE
= {
194 /***********************************************************************
197 * The i915 supports a 4x4 stipple natively, GL wants 32x32.
198 * Fortunately stipple is usually a repeating pattern.
200 * XXX: does stipple pattern need to be adjusted according to
201 * the window position?
203 * XXX: possibly need workaround for conform paths test.
205 static void upload_STIPPLE(struct i915_context
*i915
)
209 st
[0] = _3DSTATE_STIPPLE
;
212 /* I915_NEW_RASTERIZER
214 st
[1] |= i915
->rasterizer
->st
;
219 const ubyte
*mask
= (const ubyte
*)i915
->poly_stipple
.stipple
;
222 p
[0] = mask
[12] & 0xf;
223 p
[1] = mask
[8] & 0xf;
224 p
[2] = mask
[4] & 0xf;
225 p
[3] = mask
[0] & 0xf;
227 /* Not sure what to do about fallbacks, so for now just dont:
229 st
[1] |= ((p
[0] << 0) |
235 set_dynamic_indirect(i915
,
241 const struct i915_tracked_state i915_upload_STIPPLE
= {
244 I915_NEW_RASTERIZER
| I915_NEW_STIPPLE
249 /***********************************************************************
252 static void upload_SCISSOR_ENABLE( struct i915_context
*i915
)
254 set_dynamic_indirect(i915
,
255 I915_DYNAMIC_SC_ENA_0
,
256 &(i915
->rasterizer
->sc
[0]),
260 const struct i915_tracked_state i915_upload_SCISSOR_ENABLE
= {
262 upload_SCISSOR_ENABLE
,
268 /***********************************************************************
271 static void upload_SCISSOR_RECT(struct i915_context
*i915
)
273 unsigned x1
= i915
->scissor
.minx
;
274 unsigned y1
= i915
->scissor
.miny
;
275 unsigned x2
= i915
->scissor
.maxx
;
276 unsigned y2
= i915
->scissor
.maxy
;
279 sc
[0] = _3DSTATE_SCISSOR_RECT_0_CMD
;
280 sc
[1] = (y1
<< 16) | (x1
& 0xffff);
281 sc
[2] = (y2
<< 16) | (x2
& 0xffff);
283 set_dynamic_indirect(i915
,
284 I915_DYNAMIC_SC_RECT_0
,
289 const struct i915_tracked_state i915_upload_SCISSOR_RECT
= {
297 /***********************************************************************
299 static const struct i915_tracked_state
*atoms
[] = {
302 &i915_upload_BLENDCOLOR
,
304 &i915_upload_DEPTHSCALE
,
305 &i915_upload_STIPPLE
,
306 &i915_upload_SCISSOR_ENABLE
,
307 &i915_upload_SCISSOR_RECT
310 /* These will be dynamic indirect state commands, but for now just end
311 * up on the batch buffer with everything else.
313 static void update_dynamic(struct i915_context
*i915
)
317 for (i
= 0; i
< Elements(atoms
); i
++)
318 if (i915
->dirty
& atoms
[i
]->dirty
)
319 atoms
[i
]->update(i915
);
322 struct i915_tracked_state i915_hw_dynamic
= {
325 ~0 /* all state atoms, becuase we do internal checking */