57cf68f0132ccd055d755cd40fc67bfa469b7c26
[mesa.git] / src / gallium / drivers / r300 / r300_context.c
1 /*
2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
22
23 #include "draw/draw_context.h"
24
25 #include "util/u_memory.h"
26 #include "util/u_simple_list.h"
27 #include "util/u_upload_mgr.h"
28
29 #include "r300_cb.h"
30 #include "r300_context.h"
31 #include "r300_emit.h"
32 #include "r300_screen.h"
33 #include "r300_screen_buffer.h"
34 #include "r300_state_invariant.h"
35 #include "r300_winsys.h"
36
37 #include <inttypes.h>
38
39 static void r300_destroy_context(struct pipe_context* context)
40 {
41 struct r300_context* r300 = r300_context(context);
42 struct r300_query* query, * temp;
43 struct r300_atom *atom;
44
45 util_blitter_destroy(r300->blitter);
46 draw_destroy(r300->draw);
47
48 /* Print stats, if enabled. */
49 if (SCREEN_DBG_ON(r300->screen, DBG_STATS)) {
50 fprintf(stderr, "r300: Stats for context %p:\n", r300);
51 fprintf(stderr, " : Flushes: %" PRIu64 "\n", r300->flush_counter);
52 foreach(atom, &r300->atom_list) {
53 fprintf(stderr, " : %s: %" PRIu64 " emits\n",
54 atom->name, atom->counter);
55 }
56 }
57
58 /* Free the OQ BO. */
59 context->screen->resource_destroy(context->screen, r300->oqbo);
60
61 /* If there are any queries pending or not destroyed, remove them now. */
62 foreach_s(query, temp, &r300->query_list) {
63 remove_from_list(query);
64 FREE(query);
65 }
66
67 u_upload_destroy(r300->upload_vb);
68 u_upload_destroy(r300->upload_ib);
69
70 translate_cache_destroy(r300->tran.translate_cache);
71
72 FREE(r300->blend_color_state.state);
73 FREE(r300->clip_state.state);
74 FREE(r300->fb_state.state);
75 FREE(r300->rs_block_state.state);
76 FREE(r300->scissor_state.state);
77 FREE(r300->textures_state.state);
78 FREE(r300->viewport_state.state);
79 FREE(r300->ztop_state.state);
80 FREE(r300->fs_constants.state);
81 FREE(r300->vs_constants.state);
82 if (!r300->screen->caps.has_tcl) {
83 FREE(r300->vertex_stream_state.state);
84 }
85 FREE(r300);
86 }
87
88 static void r300_flush_cb(void *data)
89 {
90 struct r300_context* const cs_context_copy = data;
91
92 cs_context_copy->context.flush(&cs_context_copy->context, 0, NULL);
93 }
94
95 #define R300_INIT_ATOM(atomname, atomsize) \
96 r300->atomname.name = #atomname; \
97 r300->atomname.state = NULL; \
98 r300->atomname.size = atomsize; \
99 r300->atomname.emit = r300_emit_##atomname; \
100 r300->atomname.dirty = FALSE; \
101 insert_at_tail(&r300->atom_list, &r300->atomname);
102
103 static void r300_setup_atoms(struct r300_context* r300)
104 {
105 boolean is_r500 = r300->screen->caps.is_r500;
106 boolean has_tcl = r300->screen->caps.has_tcl;
107
108 /* Create the actual atom list.
109 *
110 * Each atom is examined and emitted in the order it appears here, which
111 * can affect performance and conformance if not handled with care.
112 *
113 * Some atoms never change size, others change every emit - those have
114 * the size of 0 here. */
115 make_empty_list(&r300->atom_list);
116 R300_INIT_ATOM(invariant_state, 71);
117 R300_INIT_ATOM(query_start, 4);
118 R300_INIT_ATOM(ztop_state, 2);
119 R300_INIT_ATOM(blend_state, 8);
120 R300_INIT_ATOM(blend_color_state, is_r500 ? 3 : 2);
121 R300_INIT_ATOM(clip_state, has_tcl ? 5 + (6 * 4) : 2);
122 R300_INIT_ATOM(dsa_state, is_r500 ? 8 : 6);
123 R300_INIT_ATOM(fb_state, 0);
124 R300_INIT_ATOM(rs_state, 0);
125 R300_INIT_ATOM(scissor_state, 3);
126 R300_INIT_ATOM(viewport_state, 9);
127 R300_INIT_ATOM(rs_block_state, 0);
128 R300_INIT_ATOM(vertex_stream_state, 0);
129 R300_INIT_ATOM(pvs_flush, 2);
130 R300_INIT_ATOM(vs_state, 0);
131 R300_INIT_ATOM(vs_constants, 0);
132 R300_INIT_ATOM(texture_cache_inval, 2);
133 R300_INIT_ATOM(textures_state, 0);
134 R300_INIT_ATOM(fs, 0);
135 R300_INIT_ATOM(fs_rc_constant_state, 0);
136 R300_INIT_ATOM(fs_constants, 0);
137
138 /* Replace emission functions for r500. */
139 if (r300->screen->caps.is_r500) {
140 r300->fs.emit = r500_emit_fs;
141 r300->fs_rc_constant_state.emit = r500_emit_fs_rc_constant_state;
142 r300->fs_constants.emit = r500_emit_fs_constants;
143 }
144
145 /* Some non-CSO atoms need explicit space to store the state locally. */
146 r300->blend_color_state.state = CALLOC_STRUCT(r300_blend_color_state);
147 r300->clip_state.state = CALLOC_STRUCT(r300_clip_state);
148 r300->fb_state.state = CALLOC_STRUCT(pipe_framebuffer_state);
149 r300->rs_block_state.state = CALLOC_STRUCT(r300_rs_block);
150 r300->scissor_state.state = CALLOC_STRUCT(pipe_scissor_state);
151 r300->textures_state.state = CALLOC_STRUCT(r300_textures_state);
152 r300->viewport_state.state = CALLOC_STRUCT(r300_viewport_state);
153 r300->ztop_state.state = CALLOC_STRUCT(r300_ztop_state);
154 r300->fs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
155 r300->vs_constants.state = CALLOC_STRUCT(r300_constant_buffer);
156 if (!r300->screen->caps.has_tcl) {
157 r300->vertex_stream_state.state = CALLOC_STRUCT(r300_vertex_stream_state);
158 }
159
160 /* Some non-CSO atoms don't use the state pointer. */
161 r300->invariant_state.allow_null_state = TRUE;
162 r300->fs_rc_constant_state.allow_null_state = TRUE;
163 r300->pvs_flush.allow_null_state = TRUE;
164 r300->query_start.allow_null_state = TRUE;
165 r300->texture_cache_inval.allow_null_state = TRUE;
166 }
167
168 /* Not every state tracker calls every driver function before the first draw
169 * call and we must initialize the command buffers somehow. */
170 static void r300_init_states(struct pipe_context *pipe)
171 {
172 struct pipe_blend_color bc = {{0}};
173 struct pipe_clip_state cs = {{{0}}};
174 struct pipe_scissor_state ss = {0};
175 struct r300_clip_state *clip =
176 (struct r300_clip_state*)r300_context(pipe)->clip_state.state;
177 CB_LOCALS;
178
179 pipe->set_blend_color(pipe, &bc);
180 pipe->set_scissor_state(pipe, &ss);
181
182 if (r300_context(pipe)->screen->caps.has_tcl) {
183 pipe->set_clip_state(pipe, &cs);
184 } else {
185 BEGIN_CB(clip->cb, 2);
186 OUT_CB_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
187 END_CB;
188 }
189 }
190
191 struct pipe_context* r300_create_context(struct pipe_screen* screen,
192 void *priv)
193 {
194 struct r300_context* r300 = CALLOC_STRUCT(r300_context);
195 struct r300_screen* r300screen = r300_screen(screen);
196 struct r300_winsys_screen *rws = r300screen->rws;
197
198 if (!r300)
199 return NULL;
200
201 r300->rws = rws;
202 r300->screen = r300screen;
203
204 r300->context.winsys = (struct pipe_winsys*)rws;
205 r300->context.screen = screen;
206 r300->context.priv = priv;
207
208 r300->context.destroy = r300_destroy_context;
209
210 if (!r300screen->caps.has_tcl) {
211 /* Create a Draw. This is used for SW TCL. */
212 r300->draw = draw_create(&r300->context);
213 /* Enable our renderer. */
214 draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300));
215 /* Enable Draw's clipping. */
216 draw_set_driver_clipping(r300->draw, FALSE);
217 /* Disable converting points/lines to triangles. */
218 draw_wide_line_threshold(r300->draw, 10000000.f);
219 draw_wide_point_threshold(r300->draw, 10000000.f);
220 }
221
222 r300_setup_atoms(r300);
223
224 /* Open up the OQ BO. */
225 r300->oqbo = pipe_buffer_create(screen,
226 R300_BIND_OQBO, 4096);
227 make_empty_list(&r300->query_list);
228
229 r300_init_blit_functions(r300);
230 r300_init_flush_functions(r300);
231 r300_init_query_functions(r300);
232 r300_init_render_functions(r300);
233 r300_init_state_functions(r300);
234 r300_init_resource_functions(r300);
235
236 r300->invariant_state.dirty = TRUE;
237
238 rws->set_flush_cb(r300->rws, r300_flush_cb, r300);
239 r300->dirty_hw++;
240
241 r300->blitter = util_blitter_create(&r300->context);
242
243 r300->upload_ib = u_upload_create(&r300->context,
244 32 * 1024, 16,
245 PIPE_BIND_INDEX_BUFFER);
246
247 if (r300->upload_ib == NULL)
248 goto no_upload_ib;
249
250 r300->upload_vb = u_upload_create(&r300->context,
251 128 * 1024, 16,
252 PIPE_BIND_VERTEX_BUFFER);
253 if (r300->upload_vb == NULL)
254 goto no_upload_vb;
255
256 r300->tran.translate_cache = translate_cache_create();
257
258 r300_init_states(&r300->context);
259
260 return &r300->context;
261
262 no_upload_ib:
263 u_upload_destroy(r300->upload_ib);
264 no_upload_vb:
265 FREE(r300);
266 return NULL;
267 }
268
269 boolean r300_check_cs(struct r300_context *r300, unsigned size)
270 {
271 return size <= r300->rws->get_cs_free_dwords(r300->rws);
272 }
273
274 void r300_finish(struct r300_context *r300)
275 {
276 struct pipe_framebuffer_state *fb;
277 unsigned i;
278
279 /* This is a preliminary implementation of glFinish.
280 *
281 * The ideal implementation should use something like EmitIrqLocked and
282 * WaitIrq, or better, real fences.
283 */
284 if (r300->fb_state.state) {
285 fb = r300->fb_state.state;
286
287 for (i = 0; i < fb->nr_cbufs; i++) {
288 if (fb->cbufs[i]->texture) {
289 r300->rws->buffer_wait(r300->rws,
290 r300_texture(fb->cbufs[i]->texture)->buffer);
291 return;
292 }
293 }
294 if (fb->zsbuf && fb->zsbuf->texture) {
295 r300->rws->buffer_wait(r300->rws,
296 r300_texture(fb->zsbuf->texture)->buffer);
297 }
298 }
299 }