1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28 #include "i915_batch.h"
29 #include "i915_state_inlines.h"
30 #include "i915_context.h"
31 #include "i915_reg.h"
32 #include "i915_state.h"
33
34 #include "util/u_memory.h"
35 #include "util/u_pack_color.h"
36
37
38 /* State that we have chosen to store in the DYNAMIC segment of the
39 * i915 indirect state mechanism.
40 *
41 * Can't cache these in the way we do the static state, as there is no
42 * start/size in the command packet, instead an 'end' value that gets
43 * incremented.
44 *
45 * Additionally, there seems to be a requirement to re-issue the full
46 * (active) state every time a 4kb boundary is crossed.
47 */
48
set_dynamic(struct i915_context * i915,unsigned offset,const unsigned state)49 static INLINE void set_dynamic(struct i915_context *i915,
50 unsigned offset,
51 const unsigned state)
52 {
53 if (i915->current.dynamic[offset] == state)
54 return;
55
56 i915->current.dynamic[offset] = state;
57 i915->dynamic_dirty |= 1 << offset;
58 i915->hardware_dirty |= I915_HW_DYNAMIC;
59 }
60
61
62
set_dynamic_array(struct i915_context * i915,unsigned offset,const unsigned * src,unsigned dwords)63 static INLINE void set_dynamic_array(struct i915_context *i915,
64 unsigned offset,
65 const unsigned *src,
66 unsigned dwords)
67 {
68 unsigned i;
69
70 if (!memcmp(src, &i915->current.dynamic[offset], dwords * 4))
71 return;
72
73 for (i = 0; i < dwords; i++) {
74 i915->current.dynamic[offset + i] = src[i];
75 i915->dynamic_dirty |= 1 << (offset + i);
76 }
77
78 i915->hardware_dirty |= I915_HW_DYNAMIC;
79 }
80
81
82
83 /***********************************************************************
84 * Modes4: stencil masks and logicop
85 */
upload_MODES4(struct i915_context * i915)86 static void upload_MODES4(struct i915_context *i915)
87 {
88 unsigned modes4 = 0;
89
90 /* I915_NEW_STENCIL
91 */
92 modes4 |= i915->depth_stencil->stencil_modes4;
93
94 /* I915_NEW_BLEND
95 */
96 modes4 |= i915->blend->modes4;
97
98 set_dynamic(i915, I915_DYNAMIC_MODES4, modes4);
99 }
100
101 const struct i915_tracked_state i915_upload_MODES4 = {
102 "MODES4",
103 upload_MODES4,
104 I915_NEW_BLEND | I915_NEW_DEPTH_STENCIL
105 };
106
107
108
109 /***********************************************************************
110 */
upload_BFO(struct i915_context * i915)111 static void upload_BFO(struct i915_context *i915)
112 {
113 unsigned bfo[2];
114 bfo[0] = i915->depth_stencil->bfo[0];
115 bfo[1] = i915->depth_stencil->bfo[1];
116 /* I don't get it only allowed to set a ref mask when the enable bit is set? */
117 if (bfo[0] & BFO_ENABLE_STENCIL_REF) {
118 bfo[0] |= i915->stencil_ref.ref_value[1] << BFO_STENCIL_REF_SHIFT;
119 }
120
121 set_dynamic_array(i915, I915_DYNAMIC_BFO_0, bfo, 2);
122 }
123
124 const struct i915_tracked_state i915_upload_BFO = {
125 "BFO",
126 upload_BFO,
127 I915_NEW_DEPTH_STENCIL
128 };
129
130
131
132 /***********************************************************************
133 */
upload_BLENDCOLOR(struct i915_context * i915)134 static void upload_BLENDCOLOR(struct i915_context *i915)
135 {
136 unsigned bc[2];
137
138 memset(bc, 0, sizeof(bc));
139
140 /* I915_NEW_BLEND
141 */
142 {
143 const float *color = i915->blend_color.color;
144
145 bc[0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
146 bc[1] = pack_ui32_float4(color[0],
147 color[1],
148 color[2],
149 color[3]);
150 }
151
152 set_dynamic_array(i915, I915_DYNAMIC_BC_0, bc, 2);
153 }
154
155 const struct i915_tracked_state i915_upload_BLENDCOLOR = {
156 "BLENDCOLOR",
157 upload_BLENDCOLOR,
158 I915_NEW_BLEND
159 };
160
161
162
163 /***********************************************************************
164 */
upload_IAB(struct i915_context * i915)165 static void upload_IAB(struct i915_context *i915)
166 {
167 unsigned iab = i915->blend->iab;
168
169 set_dynamic(i915, I915_DYNAMIC_IAB, iab);
170 }
171
172 const struct i915_tracked_state i915_upload_IAB = {
173 "IAB",
174 upload_IAB,
175 I915_NEW_BLEND
176 };
177
178
179
180 /***********************************************************************
181 */
upload_DEPTHSCALE(struct i915_context * i915)182 static void upload_DEPTHSCALE(struct i915_context *i915)
183 {
184 set_dynamic_array(i915, I915_DYNAMIC_DEPTHSCALE_0,
185 &i915->rasterizer->ds[0].u, 2);
186 }
187
188 const struct i915_tracked_state i915_upload_DEPTHSCALE = {
189 "DEPTHSCALE",
190 upload_DEPTHSCALE,
191 I915_NEW_RASTERIZER
192 };
193
194
195
196 /***********************************************************************
197 * Polygon stipple
198 *
199 * The i915 supports a 4x4 stipple natively, GL wants 32x32.
200 * Fortunately stipple is usually a repeating pattern.
201 *
202 * XXX: does stipple pattern need to be adjusted according to
203 * the window position?
204 *
205 * XXX: possibly need workaround for conform paths test.
206 */
upload_STIPPLE(struct i915_context * i915)207 static void upload_STIPPLE(struct i915_context *i915)
208 {
209 unsigned st[2];
210
211 st[0] = _3DSTATE_STIPPLE;
212 st[1] = 0;
213
214 /* I915_NEW_RASTERIZER
215 */
216 st[1] |= i915->rasterizer->st;
217
218 /* I915_NEW_STIPPLE
219 */
220 {
221 const ubyte *mask = (const ubyte *)i915->poly_stipple.stipple;
222 ubyte p[4];
223
224 p[0] = mask[12] & 0xf;
225 p[1] = mask[8] & 0xf;
226 p[2] = mask[4] & 0xf;
227 p[3] = mask[0] & 0xf;
228
229 /* Not sure what to do about fallbacks, so for now just dont:
230 */
231 st[1] |= ((p[0] << 0) |
232 (p[1] << 4) |
233 (p[2] << 8) |
234 (p[3] << 12));
235 }
236
237 set_dynamic_array(i915, I915_DYNAMIC_STP_0, st, 2);
238 }
239
240 const struct i915_tracked_state i915_upload_STIPPLE = {
241 "STIPPLE",
242 upload_STIPPLE,
243 I915_NEW_RASTERIZER | I915_NEW_STIPPLE
244 };
245
246
247
248 /***********************************************************************
249 * Scissor enable
250 */
upload_SCISSOR_ENABLE(struct i915_context * i915)251 static void upload_SCISSOR_ENABLE( struct i915_context *i915 )
252 {
253 set_dynamic(i915, I915_DYNAMIC_SC_ENA_0, i915->rasterizer->sc[0]);
254 }
255
256 const struct i915_tracked_state i915_upload_SCISSOR_ENABLE = {
257 "SCISSOR ENABLE",
258 upload_SCISSOR_ENABLE,
259 I915_NEW_RASTERIZER
260 };
261
262
263
264 /***********************************************************************
265 * Scissor rect
266 */
upload_SCISSOR_RECT(struct i915_context * i915)267 static void upload_SCISSOR_RECT(struct i915_context *i915)
268 {
269 unsigned x1 = i915->scissor.minx;
270 unsigned y1 = i915->scissor.miny;
271 unsigned x2 = i915->scissor.maxx - 1;
272 unsigned y2 = i915->scissor.maxy - 1;
273 unsigned sc[3];
274
275 sc[0] = _3DSTATE_SCISSOR_RECT_0_CMD;
276 sc[1] = (y1 << 16) | (x1 & 0xffff);
277 sc[2] = (y2 << 16) | (x2 & 0xffff);
278
279 set_dynamic_array(i915, I915_DYNAMIC_SC_RECT_0, sc, 3);
280 }
281
282 const struct i915_tracked_state i915_upload_SCISSOR_RECT = {
283 "SCISSOR RECT",
284 upload_SCISSOR_RECT,
285 I915_NEW_SCISSOR
286 };
287
288
289
290 /***********************************************************************
291 */
292 static const struct i915_tracked_state *atoms[] = {
293 &i915_upload_MODES4,
294 &i915_upload_BFO,
295 &i915_upload_BLENDCOLOR,
296 &i915_upload_IAB,
297 &i915_upload_DEPTHSCALE,
298 &i915_upload_STIPPLE,
299 &i915_upload_SCISSOR_ENABLE,
300 &i915_upload_SCISSOR_RECT
301 };
302
303 /* These will be dynamic indirect state commands, but for now just end
304 * up on the batch buffer with everything else.
305 */
update_dynamic(struct i915_context * i915)306 static void update_dynamic(struct i915_context *i915)
307 {
308 int i;
309
310 for (i = 0; i < Elements(atoms); i++)
311 if (i915->dirty & atoms[i]->dirty)
312 atoms[i]->update(i915);
313 }
314
315 struct i915_tracked_state i915_hw_dynamic = {
316 "dynamic",
317 update_dynamic,
318 ~0 /* all state atoms, becuase we do internal checking */
319 };
320