gallium: unify transfer functions
[mesa.git] / src / gallium / drivers / softpipe / sp_context.c
1 /**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 * Copyright 2008 VMware, Inc. All rights reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 /* Author:
30 * Keith Whitwell <keith@tungstengraphics.com>
31 */
32
33 #include "draw/draw_context.h"
34 #include "draw/draw_vbuf.h"
35 #include "pipe/p_defines.h"
36 #include "util/u_math.h"
37 #include "util/u_memory.h"
38 #include "util/u_pstipple.h"
39 #include "util/u_inlines.h"
40 #include "tgsi/tgsi_exec.h"
41 #include "vl/vl_decoder.h"
42 #include "vl/vl_video_buffer.h"
43 #include "sp_clear.h"
44 #include "sp_context.h"
45 #include "sp_flush.h"
46 #include "sp_prim_vbuf.h"
47 #include "sp_state.h"
48 #include "sp_surface.h"
49 #include "sp_tile_cache.h"
50 #include "sp_tex_tile_cache.h"
51 #include "sp_texture.h"
52 #include "sp_query.h"
53 #include "sp_screen.h"
54
55
56 static void
57 softpipe_destroy( struct pipe_context *pipe )
58 {
59 struct softpipe_context *softpipe = softpipe_context( pipe );
60 uint i, sh;
61
62 #if DO_PSTIPPLE_IN_HELPER_MODULE
63 if (softpipe->pstipple.sampler)
64 pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
65
66 pipe_resource_reference(&softpipe->pstipple.texture, NULL);
67 pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
68 #endif
69
70 if (softpipe->blitter) {
71 util_blitter_destroy(softpipe->blitter);
72 }
73
74 if (softpipe->draw)
75 draw_destroy( softpipe->draw );
76
77 if (softpipe->quad.shade)
78 softpipe->quad.shade->destroy( softpipe->quad.shade );
79
80 if (softpipe->quad.depth_test)
81 softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
82
83 if (softpipe->quad.blend)
84 softpipe->quad.blend->destroy( softpipe->quad.blend );
85
86 if (softpipe->quad.pstipple)
87 softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
88
89 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
90 sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
91 pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
92 }
93
94 sp_destroy_tile_cache(softpipe->zsbuf_cache);
95 pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
96
97 for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
98 for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
99 sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
100 pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
101 }
102 }
103
104 for (sh = 0; sh < Elements(softpipe->constants); sh++) {
105 for (i = 0; i < Elements(softpipe->constants[0]); i++) {
106 if (softpipe->constants[sh][i]) {
107 pipe_resource_reference(&softpipe->constants[sh][i], NULL);
108 }
109 }
110 }
111
112 for (i = 0; i < softpipe->num_vertex_buffers; i++) {
113 pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
114 }
115
116 tgsi_exec_machine_destroy(softpipe->fs_machine);
117
118 FREE( softpipe );
119 }
120
121
122 /**
123 * if (the texture is being used as a framebuffer surface)
124 * return SP_REFERENCED_FOR_WRITE
125 * else if (the texture is a bound texture source)
126 * return SP_REFERENCED_FOR_READ
127 * else
128 * return SP_UNREFERENCED
129 */
130 unsigned int
131 softpipe_is_resource_referenced( struct pipe_context *pipe,
132 struct pipe_resource *texture,
133 unsigned level, int layer)
134 {
135 struct softpipe_context *softpipe = softpipe_context( pipe );
136 unsigned i, sh;
137
138 if (texture->target == PIPE_BUFFER)
139 return SP_UNREFERENCED;
140
141 /* check if any of the bound drawing surfaces are this texture */
142 if (softpipe->dirty_render_cache) {
143 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
144 if (softpipe->framebuffer.cbufs[i] &&
145 softpipe->framebuffer.cbufs[i]->texture == texture) {
146 return SP_REFERENCED_FOR_WRITE;
147 }
148 }
149 if (softpipe->framebuffer.zsbuf &&
150 softpipe->framebuffer.zsbuf->texture == texture) {
151 return SP_REFERENCED_FOR_WRITE;
152 }
153 }
154
155 /* check if any of the tex_cache textures are this texture */
156 for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
157 for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
158 if (softpipe->tex_cache[sh][i] &&
159 softpipe->tex_cache[sh][i]->texture == texture)
160 return SP_REFERENCED_FOR_READ;
161 }
162 }
163
164 return SP_UNREFERENCED;
165 }
166
167
168
169
170 static void
171 softpipe_render_condition( struct pipe_context *pipe,
172 struct pipe_query *query,
173 uint mode )
174 {
175 struct softpipe_context *softpipe = softpipe_context( pipe );
176
177 softpipe->render_cond_query = query;
178 softpipe->render_cond_mode = mode;
179 }
180
181
182
183 struct pipe_context *
184 softpipe_create_context( struct pipe_screen *screen,
185 void *priv )
186 {
187 struct softpipe_screen *sp_screen = softpipe_screen(screen);
188 struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
189 uint i, sh;
190
191 util_init_math();
192
193 softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
194 softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
195
196 softpipe->pipe.screen = screen;
197 softpipe->pipe.destroy = softpipe_destroy;
198 softpipe->pipe.priv = priv;
199
200 /* state setters */
201 softpipe_init_blend_funcs(&softpipe->pipe);
202 softpipe_init_clip_funcs(&softpipe->pipe);
203 softpipe_init_query_funcs( softpipe );
204 softpipe_init_rasterizer_funcs(&softpipe->pipe);
205 softpipe_init_sampler_funcs(&softpipe->pipe);
206 softpipe_init_shader_funcs(&softpipe->pipe);
207 softpipe_init_streamout_funcs(&softpipe->pipe);
208 softpipe_init_texture_funcs( &softpipe->pipe );
209 softpipe_init_vertex_funcs(&softpipe->pipe);
210
211 softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
212
213 softpipe->pipe.draw_vbo = softpipe_draw_vbo;
214
215 softpipe->pipe.clear = softpipe_clear;
216 softpipe->pipe.flush = softpipe_flush_wrapped;
217
218 softpipe->pipe.render_condition = softpipe_render_condition;
219
220 softpipe->pipe.create_video_decoder = vl_create_decoder;
221 softpipe->pipe.create_video_buffer = vl_video_buffer_create;
222
223 /*
224 * Alloc caches for accessing drawing surfaces and textures.
225 * Must be before quad stage setup!
226 */
227 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
228 softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
229 softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
230
231 /* Allocate texture caches */
232 for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
233 for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
234 softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
235 if (!softpipe->tex_cache[sh][i])
236 goto fail;
237 }
238 }
239
240 softpipe->fs_machine = tgsi_exec_machine_create();
241
242 /* setup quad rendering stages */
243 softpipe->quad.shade = sp_quad_shade_stage(softpipe);
244 softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
245 softpipe->quad.blend = sp_quad_blend_stage(softpipe);
246 softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
247
248
249 /*
250 * Create drawing context and plug our rendering stage into it.
251 */
252 if (sp_screen->use_llvm)
253 softpipe->draw = draw_create(&softpipe->pipe);
254 else
255 softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
256 if (!softpipe->draw)
257 goto fail;
258
259 draw_texture_samplers(softpipe->draw,
260 PIPE_SHADER_VERTEX,
261 PIPE_MAX_SAMPLERS,
262 (struct tgsi_sampler **)
263 softpipe->tgsi.samplers_list[PIPE_SHADER_VERTEX]);
264
265 draw_texture_samplers(softpipe->draw,
266 PIPE_SHADER_GEOMETRY,
267 PIPE_MAX_SAMPLERS,
268 (struct tgsi_sampler **)
269 softpipe->tgsi.samplers_list[PIPE_SHADER_GEOMETRY]);
270
271 if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
272 softpipe->no_rast = TRUE;
273
274 softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
275 if (!softpipe->vbuf_backend)
276 goto fail;
277
278 softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
279 if (!softpipe->vbuf)
280 goto fail;
281
282 draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
283 draw_set_render(softpipe->draw, softpipe->vbuf_backend);
284
285 softpipe->blitter = util_blitter_create(&softpipe->pipe);
286 if (!softpipe->blitter) {
287 goto fail;
288 }
289
290 /* must be done before installing Draw stages */
291 util_blitter_cache_all_shaders(softpipe->blitter);
292
293 /* plug in AA line/point stages */
294 draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
295 draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
296
297 /* Do polygon stipple w/ texture map + frag prog? */
298 #if DO_PSTIPPLE_IN_DRAW_MODULE
299 draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
300 #endif
301
302 draw_wide_point_sprites(softpipe->draw, TRUE);
303
304 sp_init_surface_functions(softpipe);
305
306 #if DO_PSTIPPLE_IN_HELPER_MODULE
307 /* create the polgon stipple sampler */
308 softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
309 #endif
310
311 return &softpipe->pipe;
312
313 fail:
314 softpipe_destroy(&softpipe->pipe);
315 return NULL;
316 }