i915_state_immediate.c revision 481fad15526d30e121d031bfcb765ed7847f50a7 
1/**************************************************************************
2 *
3 * Copyright 2007 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  * Authors:
29  *   Keith Whitwell <keith@tungstengraphics.com>
30  */
31
32#include "i915_state_inlines.h"
33#include "i915_context.h"
34#include "i915_state.h"
35#include "i915_reg.h"
36#include "util/u_memory.h"
37
38
39
40/***********************************************************************
41 * S0,S1: Vertex buffer state.
42 */
43static void upload_S0S1(struct i915_context *i915)
44{
45   unsigned LIS0, LIS1;
46
47   /* I915_NEW_VBO
48    */
49   LIS0 = i915->vbo_offset;
50
51   /* I915_NEW_VERTEX_SIZE
52    */
53   /* XXX do this where the vertex size is calculated! */
54   {
55      unsigned vertex_size = i915->current.vertex_info.size;
56
57      LIS1 = ((vertex_size << 24) |
58              (vertex_size << 16));
59   }
60
61   /* I915_NEW_VBO
62    */
63   if (1 ||
64       i915->current.immediate[I915_IMMEDIATE_S0] != LIS0 ||
65       i915->current.immediate[I915_IMMEDIATE_S1] != LIS1)
66   {
67      i915->current.immediate[I915_IMMEDIATE_S0] = LIS0;
68      i915->current.immediate[I915_IMMEDIATE_S1] = LIS1;
69      i915->hardware_dirty |= I915_HW_IMMEDIATE;
70   }
71}
72
73const struct i915_tracked_state i915_upload_S0S1 = {
74   "imm S0 S1",
75   upload_S0S1,
76   I915_NEW_VBO | I915_NEW_VERTEX_FORMAT
77};
78
79
80
81/***********************************************************************
82 * S4: Vertex format, rasterization state
83 */
84static void upload_S2S4(struct i915_context *i915)
85{
86   unsigned LIS2, LIS4;
87
88   /* I915_NEW_VERTEX_FORMAT
89    */
90   {
91      LIS2 = i915->current.vertex_info.hwfmt[1];
92      LIS4 = i915->current.vertex_info.hwfmt[0];
93      /*
94      debug_printf("LIS2: 0x%x  LIS4: 0x%x\n", LIS2, LIS4);
95      */
96      assert(LIS4); /* should never be zero? */
97   }
98
99   LIS4 |= i915->rasterizer->LIS4;
100
101   if (LIS2 != i915->current.immediate[I915_IMMEDIATE_S2] ||
102       LIS4 != i915->current.immediate[I915_IMMEDIATE_S4]) {
103
104      i915->current.immediate[I915_IMMEDIATE_S2] = LIS2;
105      i915->current.immediate[I915_IMMEDIATE_S4] = LIS4;
106      i915->hardware_dirty |= I915_HW_IMMEDIATE;
107   }
108}
109
110const struct i915_tracked_state i915_upload_S2S4 = {
111   "imm S2 S4",
112   upload_S2S4,
113   I915_NEW_RASTERIZER | I915_NEW_VERTEX_FORMAT
114};
115
116
117
118/***********************************************************************
119 */
120static void upload_S5(struct i915_context *i915)
121{
122   unsigned LIS5 = 0;
123
124   /* I915_NEW_DEPTH_STENCIL
125    */
126   LIS5 |= i915->depth_stencil->stencil_LIS5;
127   /* hope it's safe to set stencil ref value even if stencil test is disabled? */
128   LIS5 |= i915->stencil_ref.ref_value[0] << S5_STENCIL_REF_SHIFT;
129
130   /* I915_NEW_BLEND
131    */
132   LIS5 |= i915->blend->LIS5;
133
134#if 0
135   /* I915_NEW_RASTERIZER
136    */
137   if (i915->state.Polygon->OffsetFill) {
138      LIS5 |= S5_GLOBAL_DEPTH_OFFSET_ENABLE;
139   }
140#endif
141
142   if (LIS5 != i915->current.immediate[I915_IMMEDIATE_S5]) {
143      i915->current.immediate[I915_IMMEDIATE_S5] = LIS5;
144      i915->hardware_dirty |= I915_HW_IMMEDIATE;
145   }
146}
147
148const struct i915_tracked_state i915_upload_S5 = {
149   "imm S5",
150   upload_S5,
151   I915_NEW_DEPTH_STENCIL | I915_NEW_BLEND | I915_NEW_RASTERIZER
152};
153
154
155
156/***********************************************************************
157 */
158static void upload_S6(struct i915_context *i915)
159{
160   unsigned LIS6 = (2 << S6_TRISTRIP_PV_SHIFT);
161
162   /* I915_NEW_FRAMEBUFFER
163    */
164   if (i915->framebuffer.cbufs[0])
165      LIS6 |= S6_COLOR_WRITE_ENABLE;
166
167   /* I915_NEW_BLEND
168    */
169   LIS6 |= i915->blend->LIS6;
170
171   /* I915_NEW_DEPTH
172    */
173   LIS6 |= i915->depth_stencil->depth_LIS6;
174
175   if (LIS6 != i915->current.immediate[I915_IMMEDIATE_S6]) {
176      i915->current.immediate[I915_IMMEDIATE_S6] = LIS6;
177      i915->hardware_dirty |= I915_HW_IMMEDIATE;
178   }
179}
180
181const struct i915_tracked_state i915_upload_S6 = {
182   "imm s6",
183   upload_S6,
184   I915_NEW_BLEND | I915_NEW_DEPTH_STENCIL | I915_NEW_FRAMEBUFFER
185};
186
187
188
189/***********************************************************************
190 */
191static void upload_S7(struct i915_context *i915)
192{
193   unsigned LIS7;
194
195   /* I915_NEW_RASTERIZER
196    */
197   LIS7 = i915->rasterizer->LIS7;
198
199   if (LIS7 != i915->current.immediate[I915_IMMEDIATE_S7]) {
200      i915->current.immediate[I915_IMMEDIATE_S7] = LIS7;
201      i915->hardware_dirty |= I915_HW_IMMEDIATE;
202   }
203}
204
205const struct i915_tracked_state i915_upload_S7 = {
206   "imm S7",
207   upload_S7,
208   I915_NEW_RASTERIZER
209};
210
211
212
213/***********************************************************************
214 */
215static const struct i915_tracked_state *atoms[] = {
216   &i915_upload_S0S1,
217   &i915_upload_S2S4,
218   &i915_upload_S5,
219   &i915_upload_S6,
220   &i915_upload_S7
221};
222
223static void update_immediate(struct i915_context *i915)
224{
225   int i;
226
227   for (i = 0; i < Elements(atoms); i++)
228      if (i915->dirty & atoms[i]->dirty)
229         atoms[i]->update(i915);
230}
231
232struct i915_tracked_state i915_hw_immediate = {
233   "immediate",
234   update_immediate,
235   ~0 /* all state atoms, becuase we do internal checking */
236};
237