1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26 #include "draw/draw_context.h"
27 #include "draw/draw_vbuf.h"
28 #include "util/u_bitmask.h"
29 #include "util/u_inlines.h"
30 #include "pipe/p_state.h"
31
32 #include "svga_cmd.h"
33 #include "svga_context.h"
34 #include "svga_shader.h"
35 #include "svga_swtnl.h"
36 #include "svga_state.h"
37 #include "svga_tgsi.h"
38 #include "svga_swtnl_private.h"
39
40
41 #define SVGA_POINT_ADJ_X -0.375f
42 #define SVGA_POINT_ADJ_Y -0.5f
43
44 #define SVGA_LINE_ADJ_X -0.5f
45 #define SVGA_LINE_ADJ_Y -0.5f
46
47 #define SVGA_TRIANGLE_ADJ_X -0.375f
48 #define SVGA_TRIANGLE_ADJ_Y -0.5f
49
50
51 static void
set_draw_viewport(struct svga_context * svga)52 set_draw_viewport(struct svga_context *svga)
53 {
54 struct pipe_viewport_state vp = svga->curr.viewport[0];
55 float adjx = 0.0f;
56 float adjy = 0.0f;
57
58 if (svga_have_vgpu10(svga)) {
59 if (svga->curr.reduced_prim == PIPE_PRIM_TRIANGLES) {
60 adjy = 0.25;
61 }
62 }
63 else {
64 switch (svga->curr.reduced_prim) {
65 case PIPE_PRIM_POINTS:
66 adjx = SVGA_POINT_ADJ_X;
67 adjy = SVGA_POINT_ADJ_Y;
68 break;
69 case PIPE_PRIM_LINES:
70 /* XXX: This is to compensate for the fact that wide lines are
71 * going to be drawn with triangles, but we're not catching all
72 * cases where that will happen.
73 */
74 if (svga->curr.rast->need_pipeline & SVGA_PIPELINE_FLAG_LINES)
75 {
76 adjx = SVGA_LINE_ADJ_X + 0.175f;
77 adjy = SVGA_LINE_ADJ_Y - 0.175f;
78 }
79 else {
80 adjx = SVGA_LINE_ADJ_X;
81 adjy = SVGA_LINE_ADJ_Y;
82 }
83 break;
84 case PIPE_PRIM_TRIANGLES:
85 adjx += SVGA_TRIANGLE_ADJ_X;
86 adjy += SVGA_TRIANGLE_ADJ_Y;
87 break;
88 default:
89 /* nothing */
90 break;
91 }
92 }
93
94 vp.translate[0] += adjx;
95 vp.translate[1] += adjy;
96
97 draw_set_viewport_states(svga->swtnl.draw, 0, 1, &vp);
98 }
99
100 static enum pipe_error
update_swtnl_draw(struct svga_context * svga,uint64_t dirty)101 update_swtnl_draw(struct svga_context *svga, uint64_t dirty)
102 {
103 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SWTNLUPDATEDRAW);
104
105 draw_flush(svga->swtnl.draw);
106
107 if (dirty & SVGA_NEW_VS)
108 draw_bind_vertex_shader(svga->swtnl.draw,
109 svga->curr.vs->draw_shader);
110
111 if (dirty & SVGA_NEW_FS)
112 draw_bind_fragment_shader(svga->swtnl.draw,
113 svga->curr.fs->draw_shader);
114
115 if (dirty & SVGA_NEW_VBUFFER)
116 draw_set_vertex_buffers(svga->swtnl.draw, 0,
117 svga->curr.num_vertex_buffers,
118 svga->curr.vb);
119
120 if (dirty & SVGA_NEW_VELEMENT)
121 draw_set_vertex_elements(svga->swtnl.draw,
122 svga->curr.velems->count,
123 svga->curr.velems->velem);
124
125 if (dirty & SVGA_NEW_CLIP)
126 draw_set_clip_state(svga->swtnl.draw,
127 &svga->curr.clip);
128
129 if (dirty & (SVGA_NEW_VIEWPORT |
130 SVGA_NEW_REDUCED_PRIMITIVE |
131 SVGA_NEW_RAST))
132 set_draw_viewport(svga);
133
134 if (dirty & SVGA_NEW_RAST)
135 draw_set_rasterizer_state(svga->swtnl.draw,
136 &svga->curr.rast->templ,
137 (void *) svga->curr.rast);
138
139 /* Tell the draw module how deep the Z/depth buffer is.
140 *
141 * If no depth buffer is bound, send the utility function the
142 * format for no bound depth (PIPE_FORMAT_NONE).
143 */
144 if (dirty & SVGA_NEW_FRAME_BUFFER)
145 draw_set_zs_format(svga->swtnl.draw,
146 (svga->curr.framebuffer.zsbuf) ?
147 svga->curr.framebuffer.zsbuf->format : PIPE_FORMAT_NONE);
148
149 SVGA_STATS_TIME_POP(svga_sws(svga));
150 return PIPE_OK;
151 }
152
153
154 struct svga_tracked_state svga_update_swtnl_draw =
155 {
156 "update draw module state",
157 (SVGA_NEW_VS |
158 SVGA_NEW_VBUFFER |
159 SVGA_NEW_VELEMENT |
160 SVGA_NEW_CLIP |
161 SVGA_NEW_VIEWPORT |
162 SVGA_NEW_RAST |
163 SVGA_NEW_FRAME_BUFFER |
164 SVGA_NEW_REDUCED_PRIMITIVE),
165 update_swtnl_draw
166 };
167
168
169 static SVGA3dSurfaceFormat
translate_vertex_format(SVGA3dDeclType format)170 translate_vertex_format(SVGA3dDeclType format)
171 {
172 switch (format) {
173 case SVGA3D_DECLTYPE_FLOAT1:
174 return SVGA3D_R32_FLOAT;
175 case SVGA3D_DECLTYPE_FLOAT2:
176 return SVGA3D_R32G32_FLOAT;
177 case SVGA3D_DECLTYPE_FLOAT3:
178 return SVGA3D_R32G32B32_FLOAT;
179 case SVGA3D_DECLTYPE_FLOAT4:
180 return SVGA3D_R32G32B32A32_FLOAT;
181 default:
182 assert(!"Unexpected format in translate_vertex_format()");
183 return SVGA3D_R32G32B32A32_FLOAT;
184 }
185 }
186
187
188 static SVGA3dElementLayoutId
svga_vdecl_to_input_element(struct svga_context * svga,const SVGA3dVertexDecl * vdecl,unsigned num_decls)189 svga_vdecl_to_input_element(struct svga_context *svga,
190 const SVGA3dVertexDecl *vdecl, unsigned num_decls)
191 {
192 SVGA3dElementLayoutId id;
193 SVGA3dInputElementDesc elements[PIPE_MAX_ATTRIBS];
194 unsigned i;
195
196 assert(num_decls <= PIPE_MAX_ATTRIBS);
197 assert(svga_have_vgpu10(svga));
198
199 for (i = 0; i < num_decls; i++) {
200 elements[i].inputSlot = 0; /* vertex buffer index */
201 elements[i].alignedByteOffset = vdecl[i].array.offset;
202 elements[i].format = translate_vertex_format(vdecl[i].identity.type);
203 elements[i].inputSlotClass = SVGA3D_INPUT_PER_VERTEX_DATA;
204 elements[i].instanceDataStepRate = 0;
205 elements[i].inputRegister = i;
206 }
207
208 id = util_bitmask_add(svga->input_element_object_id_bm);
209
210 SVGA_RETRY(svga, SVGA3D_vgpu10_DefineElementLayout(svga->swc, num_decls, id,
211 elements));
212
213 return id;
214 }
215
216
217 enum pipe_error
svga_swtnl_update_vdecl(struct svga_context * svga)218 svga_swtnl_update_vdecl(struct svga_context *svga)
219 {
220 struct svga_vbuf_render *svga_render = svga_vbuf_render(svga->swtnl.backend);
221 struct draw_context *draw = svga->swtnl.draw;
222 struct vertex_info *vinfo = &svga_render->vertex_info;
223 SVGA3dVertexDecl vdecl[PIPE_MAX_ATTRIBS];
224 struct svga_fragment_shader *fs = svga->curr.fs;
225 int offset = 0;
226 int nr_decls = 0;
227 int src;
228 unsigned i;
229 int any_change;
230
231 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SWTNLUPDATEVDECL);
232
233 memset(vinfo, 0, sizeof(*vinfo));
234 memset(vdecl, 0, sizeof(vdecl));
235
236 draw_prepare_shader_outputs(draw);
237
238 /* always add position */
239 src = draw_find_shader_output(draw, TGSI_SEMANTIC_POSITION, 0);
240 draw_emit_vertex_attr(vinfo, EMIT_4F, src);
241 vinfo->attrib[0].emit = EMIT_4F;
242 vdecl[0].array.offset = offset;
243 vdecl[0].identity.method = SVGA3D_DECLMETHOD_DEFAULT;
244 vdecl[0].identity.type = SVGA3D_DECLTYPE_FLOAT4;
245 vdecl[0].identity.usage = SVGA3D_DECLUSAGE_POSITIONT;
246 vdecl[0].identity.usageIndex = 0;
247 offset += 16;
248 nr_decls++;
249
250 for (i = 0; i < fs->base.info.num_inputs; i++) {
251 const enum tgsi_semantic sem_name = fs->base.info.input_semantic_name[i];
252 const unsigned sem_index = fs->base.info.input_semantic_index[i];
253
254 src = draw_find_shader_output(draw, sem_name, sem_index);
255
256 vdecl[nr_decls].array.offset = offset;
257 vdecl[nr_decls].identity.usageIndex = sem_index;
258
259 switch (sem_name) {
260 case TGSI_SEMANTIC_COLOR:
261 draw_emit_vertex_attr(vinfo, EMIT_4F, src);
262 vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_COLOR;
263 vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT4;
264 offset += 16;
265 nr_decls++;
266 break;
267 case TGSI_SEMANTIC_GENERIC:
268 draw_emit_vertex_attr(vinfo, EMIT_4F, src);
269 vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD;
270 vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT4;
271 vdecl[nr_decls].identity.usageIndex =
272 svga_remap_generic_index(fs->generic_remap_table, sem_index);
273 offset += 16;
274 nr_decls++;
275 break;
276 case TGSI_SEMANTIC_FOG:
277 draw_emit_vertex_attr(vinfo, EMIT_1F, src);
278 vdecl[nr_decls].identity.usage = SVGA3D_DECLUSAGE_TEXCOORD;
279 vdecl[nr_decls].identity.type = SVGA3D_DECLTYPE_FLOAT1;
280 assert(vdecl[nr_decls].identity.usageIndex == 0);
281 offset += 4;
282 nr_decls++;
283 break;
284 case TGSI_SEMANTIC_POSITION:
285 case TGSI_SEMANTIC_FACE:
286 /* generated internally, not a vertex shader output */
287 break;
288 default:
289 assert(0);
290 }
291 }
292
293 draw_compute_vertex_size(vinfo);
294
295 svga_render->vdecl_count = nr_decls;
296 for (i = 0; i < svga_render->vdecl_count; i++) {
297 vdecl[i].array.stride = offset;
298 }
299
300 any_change = memcmp(svga_render->vdecl, vdecl, sizeof(vdecl));
301
302 if (svga_have_vgpu10(svga)) {
303 if (!any_change && svga_render->layout_id != SVGA3D_INVALID_ID) {
304 goto done;
305 }
306
307 if (svga_render->layout_id != SVGA3D_INVALID_ID) {
308 /* destroy old */
309 SVGA_RETRY(svga, SVGA3D_vgpu10_DestroyElementLayout
310 (svga->swc, svga_render->layout_id));
311
312 /**
313 * reset current layout id state after the element layout is
314 * destroyed, so that if a new layout has the same layout id, we
315 * will know to re-issue the SetInputLayout command.
316 */
317 if (svga->state.hw_draw.layout_id == svga_render->layout_id)
318 svga->state.hw_draw.layout_id = SVGA3D_INVALID_ID;
319
320 util_bitmask_clear(svga->input_element_object_id_bm,
321 svga_render->layout_id);
322 }
323
324 svga_render->layout_id =
325 svga_vdecl_to_input_element(svga, vdecl, nr_decls);
326
327 /* bind new */
328 if (svga->state.hw_draw.layout_id != svga_render->layout_id) {
329 SVGA_RETRY(svga, SVGA3D_vgpu10_SetInputLayout(svga->swc,
330 svga_render->layout_id));
331 svga->state.hw_draw.layout_id = svga_render->layout_id;
332 }
333 }
334 else {
335 if (!any_change)
336 goto done;
337 }
338
339 memcpy(svga_render->vdecl, vdecl, sizeof(vdecl));
340 svga->swtnl.new_vdecl = TRUE;
341
342 done:
343 SVGA_STATS_TIME_POP(svga_sws(svga));
344 return PIPE_OK;
345 }
346
347
348 static enum pipe_error
update_swtnl_vdecl(struct svga_context * svga,uint64_t dirty)349 update_swtnl_vdecl(struct svga_context *svga, uint64_t dirty)
350 {
351 return svga_swtnl_update_vdecl(svga);
352 }
353
354
355 struct svga_tracked_state svga_update_swtnl_vdecl =
356 {
357 "update draw module vdecl",
358 (SVGA_NEW_VS |
359 SVGA_NEW_FS),
360 update_swtnl_vdecl
361 };
362