1 /*
2 * Copyright © 2011 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "brw_context.h"
25 #include "brw_state.h"
26 #include "brw_defines.h"
27 #include "brw_util.h"
28 #include "main/macros.h"
29 #include "main/fbobject.h"
30 #include "main/framebuffer.h"
31 #include "intel_batchbuffer.h"
32
33 static void
upload_sbe_state(struct brw_context * brw)34 upload_sbe_state(struct brw_context *brw)
35 {
36 struct gl_context *ctx = &brw->ctx;
37 /* BRW_NEW_FS_PROG_DATA */
38 const struct brw_wm_prog_data *wm_prog_data =
39 brw_wm_prog_data(brw->wm.base.prog_data);
40 uint32_t num_outputs = wm_prog_data->num_varying_inputs;
41 uint32_t dw1;
42 uint32_t point_sprite_enables;
43 int i;
44 uint16_t attr_overrides[16];
45 /* _NEW_BUFFERS */
46 bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
47 uint32_t point_sprite_origin;
48
49 /* FINISHME: Attribute Swizzle Control Mode? */
50 dw1 = GEN7_SBE_SWIZZLE_ENABLE | num_outputs << GEN7_SBE_NUM_OUTPUTS_SHIFT;
51
52 /* _NEW_POINT
53 *
54 * Window coordinates in an FBO are inverted, which means point
55 * sprite origin must be inverted.
56 */
57 if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo) {
58 point_sprite_origin = GEN6_SF_POINT_SPRITE_LOWERLEFT;
59 } else {
60 point_sprite_origin = GEN6_SF_POINT_SPRITE_UPPERLEFT;
61 }
62 dw1 |= point_sprite_origin;
63
64 /* _NEW_POINT | _NEW_LIGHT | _NEW_PROGRAM,
65 * BRW_NEW_FS_PROG_DATA | BRW_NEW_FRAGMENT_PROGRAM |
66 * BRW_NEW_GS_PROG_DATA | BRW_NEW_PRIMITIVE | BRW_NEW_TES_PROG_DATA |
67 * BRW_NEW_VUE_MAP_GEOM_OUT
68 */
69 uint32_t urb_entry_read_length;
70 uint32_t urb_entry_read_offset;
71 calculate_attr_overrides(brw, attr_overrides, &point_sprite_enables,
72 &urb_entry_read_length, &urb_entry_read_offset);
73 dw1 |= urb_entry_read_length << GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT |
74 urb_entry_read_offset << GEN7_SBE_URB_ENTRY_READ_OFFSET_SHIFT;
75
76 BEGIN_BATCH(14);
77 OUT_BATCH(_3DSTATE_SBE << 16 | (14 - 2));
78 OUT_BATCH(dw1);
79
80 /* Output dwords 2 through 9 */
81 for (i = 0; i < 8; i++) {
82 OUT_BATCH(attr_overrides[i * 2] | attr_overrides[i * 2 + 1] << 16);
83 }
84
85 OUT_BATCH(point_sprite_enables); /* dw10 */
86 OUT_BATCH(wm_prog_data->flat_inputs);
87 OUT_BATCH(0); /* wrapshortest enables 0-7 */
88 OUT_BATCH(0); /* wrapshortest enables 8-15 */
89 ADVANCE_BATCH();
90 }
91
92 const struct brw_tracked_state gen7_sbe_state = {
93 .dirty = {
94 .mesa = _NEW_BUFFERS |
95 _NEW_LIGHT |
96 _NEW_POINT |
97 _NEW_POLYGON |
98 _NEW_PROGRAM,
99 .brw = BRW_NEW_BLORP |
100 BRW_NEW_CONTEXT |
101 BRW_NEW_FRAGMENT_PROGRAM |
102 BRW_NEW_FS_PROG_DATA |
103 BRW_NEW_GS_PROG_DATA |
104 BRW_NEW_TES_PROG_DATA |
105 BRW_NEW_PRIMITIVE |
106 BRW_NEW_VUE_MAP_GEOM_OUT,
107 },
108 .emit = upload_sbe_state,
109 };
110
111 static void
upload_sf_state(struct brw_context * brw)112 upload_sf_state(struct brw_context *brw)
113 {
114 struct gl_context *ctx = &brw->ctx;
115 uint32_t dw1, dw2, dw3;
116 float point_size;
117 /* _NEW_BUFFERS */
118 bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
119 const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1;
120
121 dw1 = GEN6_SF_STATISTICS_ENABLE;
122
123 if (brw->sf.viewport_transform_enable)
124 dw1 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
125
126 /* _NEW_BUFFERS */
127 dw1 |= (brw_depthbuffer_format(brw) << GEN7_SF_DEPTH_BUFFER_SURFACE_FORMAT_SHIFT);
128
129 /* _NEW_POLYGON */
130 if (ctx->Polygon._FrontBit == render_to_fbo)
131 dw1 |= GEN6_SF_WINDING_CCW;
132
133 if (ctx->Polygon.OffsetFill)
134 dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_SOLID;
135
136 if (ctx->Polygon.OffsetLine)
137 dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_WIREFRAME;
138
139 if (ctx->Polygon.OffsetPoint)
140 dw1 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_POINT;
141
142 switch (ctx->Polygon.FrontMode) {
143 case GL_FILL:
144 dw1 |= GEN6_SF_FRONT_SOLID;
145 break;
146
147 case GL_LINE:
148 dw1 |= GEN6_SF_FRONT_WIREFRAME;
149 break;
150
151 case GL_POINT:
152 dw1 |= GEN6_SF_FRONT_POINT;
153 break;
154
155 default:
156 unreachable("not reached");
157 }
158
159 switch (ctx->Polygon.BackMode) {
160 case GL_FILL:
161 dw1 |= GEN6_SF_BACK_SOLID;
162 break;
163
164 case GL_LINE:
165 dw1 |= GEN6_SF_BACK_WIREFRAME;
166 break;
167
168 case GL_POINT:
169 dw1 |= GEN6_SF_BACK_POINT;
170 break;
171
172 default:
173 unreachable("not reached");
174 }
175
176 dw2 = GEN6_SF_SCISSOR_ENABLE;
177
178 if (ctx->Polygon.CullFlag) {
179 switch (ctx->Polygon.CullFaceMode) {
180 case GL_FRONT:
181 dw2 |= GEN6_SF_CULL_FRONT;
182 break;
183 case GL_BACK:
184 dw2 |= GEN6_SF_CULL_BACK;
185 break;
186 case GL_FRONT_AND_BACK:
187 dw2 |= GEN6_SF_CULL_BOTH;
188 break;
189 default:
190 unreachable("not reached");
191 }
192 } else {
193 dw2 |= GEN6_SF_CULL_NONE;
194 }
195
196 /* _NEW_LINE */
197 {
198 uint32_t line_width_u3_7 = brw_get_line_width(brw);
199 dw2 |= line_width_u3_7 << GEN6_SF_LINE_WIDTH_SHIFT;
200 }
201 if (ctx->Line.SmoothFlag) {
202 dw2 |= GEN6_SF_LINE_AA_ENABLE;
203 dw2 |= GEN6_SF_LINE_END_CAP_WIDTH_1_0;
204 }
205 if (ctx->Line.StippleFlag && brw->is_haswell) {
206 dw2 |= HSW_SF_LINE_STIPPLE_ENABLE;
207 }
208 /* _NEW_MULTISAMPLE */
209 if (multisampled_fbo && ctx->Multisample.Enabled)
210 dw2 |= GEN6_SF_MSRAST_ON_PATTERN;
211
212 /* FINISHME: Last Pixel Enable? Vertex Sub Pixel Precision Select?
213 */
214
215 dw3 = GEN6_SF_LINE_AA_MODE_TRUE;
216
217 /* _NEW_PROGRAM | _NEW_POINT, BRW_NEW_VUE_MAP_GEOM_OUT */
218 if (use_state_point_size(brw))
219 dw3 |= GEN6_SF_USE_STATE_POINT_WIDTH;
220
221 /* _NEW_POINT - Clamp to ARB_point_parameters user limits */
222 point_size = CLAMP(ctx->Point.Size, ctx->Point.MinSize, ctx->Point.MaxSize);
223
224 /* Clamp to the hardware limits and convert to fixed point */
225 dw3 |= U_FIXED(CLAMP(point_size, 0.125f, 255.875f), 3);
226
227 /* _NEW_LIGHT */
228 if (ctx->Light.ProvokingVertex != GL_FIRST_VERTEX_CONVENTION) {
229 dw3 |=
230 (2 << GEN6_SF_TRI_PROVOKE_SHIFT) |
231 (2 << GEN6_SF_TRIFAN_PROVOKE_SHIFT) |
232 (1 << GEN6_SF_LINE_PROVOKE_SHIFT);
233 } else {
234 dw3 |= (1 << GEN6_SF_TRIFAN_PROVOKE_SHIFT);
235 }
236
237 BEGIN_BATCH(7);
238 OUT_BATCH(_3DSTATE_SF << 16 | (7 - 2));
239 OUT_BATCH(dw1);
240 OUT_BATCH(dw2);
241 OUT_BATCH(dw3);
242 OUT_BATCH_F(ctx->Polygon.OffsetUnits * 2); /* constant. copied from gen4 */
243 OUT_BATCH_F(ctx->Polygon.OffsetFactor); /* scale */
244 OUT_BATCH_F(ctx->Polygon.OffsetClamp); /* global depth offset clamp */
245 ADVANCE_BATCH();
246 }
247
248 const struct brw_tracked_state gen7_sf_state = {
249 .dirty = {
250 .mesa = _NEW_BUFFERS |
251 _NEW_LIGHT |
252 _NEW_LINE |
253 _NEW_MULTISAMPLE |
254 _NEW_POINT |
255 _NEW_POLYGON |
256 _NEW_PROGRAM,
257 .brw = BRW_NEW_BLORP |
258 BRW_NEW_CONTEXT |
259 BRW_NEW_GS_PROG_DATA |
260 BRW_NEW_PRIMITIVE |
261 BRW_NEW_TES_PROG_DATA |
262 BRW_NEW_VUE_MAP_GEOM_OUT,
263 },
264 .emit = upload_sf_state,
265 };
266