1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * Copyright 2008 VMware, Inc. All rights reserved.
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:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
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.
27 **************************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
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"
39 #include "lp_context.h"
41 #include "lp_prim_vbuf.h"
43 #include "lp_surface.h"
44 #include "lp_tile_cache.h"
45 #include "lp_tex_cache.h"
46 #include "lp_texture.h"
47 #include "lp_winsys.h"
53 * Map any drawing surfaces which aren't already mapped
56 llvmpipe_map_transfers(struct llvmpipe_context
*lp
)
58 struct pipe_screen
*screen
= lp
->pipe
.screen
;
59 struct pipe_surface
*zsbuf
= lp
->framebuffer
.zsbuf
;
62 for (i
= 0; i
< lp
->framebuffer
.nr_cbufs
; i
++) {
63 lp_tile_cache_map_transfers(lp
->cbuf_cache
[i
]);
67 if(!lp
->zsbuf_transfer
)
68 lp
->zsbuf_transfer
= screen
->get_tex_transfer(screen
, zsbuf
->texture
,
69 zsbuf
->face
, zsbuf
->level
, zsbuf
->zslice
,
70 PIPE_TRANSFER_READ_WRITE
,
71 0, 0, zsbuf
->width
, zsbuf
->height
);
72 if(lp
->zsbuf_transfer
&& !lp
->zsbuf_map
)
73 lp
->zsbuf_map
= screen
->transfer_map(screen
, lp
->zsbuf_transfer
);
80 * Unmap any mapped drawing surfaces
83 llvmpipe_unmap_transfers(struct llvmpipe_context
*lp
)
87 for (i
= 0; i
< lp
->framebuffer
.nr_cbufs
; i
++) {
88 lp_tile_cache_unmap_transfers(lp
->cbuf_cache
[i
]);
91 if(lp
->zsbuf_transfer
) {
92 struct pipe_screen
*screen
= lp
->pipe
.screen
;
95 screen
->transfer_unmap(screen
, lp
->zsbuf_transfer
);
102 static void llvmpipe_destroy( struct pipe_context
*pipe
)
104 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
108 draw_destroy( llvmpipe
->draw
);
110 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
111 lp_destroy_tile_cache(llvmpipe
->cbuf_cache
[i
]);
112 pipe_surface_reference(&llvmpipe
->framebuffer
.cbufs
[i
], NULL
);
114 pipe_surface_reference(&llvmpipe
->framebuffer
.zsbuf
, NULL
);
116 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++) {
117 lp_destroy_tex_tile_cache(llvmpipe
->tex_cache
[i
]);
118 pipe_texture_reference(&llvmpipe
->texture
[i
], NULL
);
121 for (i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; i
++) {
122 lp_destroy_tex_tile_cache(llvmpipe
->vertex_tex_cache
[i
]);
123 pipe_texture_reference(&llvmpipe
->vertex_textures
[i
], NULL
);
126 for (i
= 0; i
< Elements(llvmpipe
->constants
); i
++) {
127 if (llvmpipe
->constants
[i
].buffer
) {
128 pipe_buffer_reference(&llvmpipe
->constants
[i
].buffer
, NULL
);
132 align_free( llvmpipe
);
136 llvmpipe_is_texture_referenced( struct pipe_context
*pipe
,
137 struct pipe_texture
*texture
,
138 unsigned face
, unsigned level
)
140 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
143 /* check if any of the bound drawing surfaces are this texture */
144 if(llvmpipe
->dirty_render_cache
) {
145 for (i
= 0; i
< llvmpipe
->framebuffer
.nr_cbufs
; i
++) {
146 if(llvmpipe
->framebuffer
.cbufs
[i
] &&
147 llvmpipe
->framebuffer
.cbufs
[i
]->texture
== texture
)
148 return PIPE_REFERENCED_FOR_WRITE
;
150 if(llvmpipe
->framebuffer
.zsbuf
&&
151 llvmpipe
->framebuffer
.zsbuf
->texture
== texture
)
152 return PIPE_REFERENCED_FOR_WRITE
;
155 /* check if any of the tex_cache textures are this texture */
156 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++) {
157 if (llvmpipe
->tex_cache
[i
] &&
158 llvmpipe
->tex_cache
[i
]->texture
== texture
)
159 return PIPE_REFERENCED_FOR_READ
;
161 for (i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; i
++) {
162 if (llvmpipe
->vertex_tex_cache
[i
] &&
163 llvmpipe
->vertex_tex_cache
[i
]->texture
== texture
)
164 return PIPE_REFERENCED_FOR_READ
;
167 return PIPE_UNREFERENCED
;
171 llvmpipe_is_buffer_referenced( struct pipe_context
*pipe
,
172 struct pipe_buffer
*buf
)
174 return PIPE_UNREFERENCED
;
177 struct pipe_context
*
178 llvmpipe_create( struct pipe_screen
*screen
)
180 struct llvmpipe_context
*llvmpipe
;
183 llvmpipe
= align_malloc(sizeof(struct llvmpipe_context
), 16);
189 memset(llvmpipe
, 0, sizeof *llvmpipe
);
191 llvmpipe
->pipe
.winsys
= screen
->winsys
;
192 llvmpipe
->pipe
.screen
= screen
;
193 llvmpipe
->pipe
.destroy
= llvmpipe_destroy
;
196 llvmpipe
->pipe
.create_blend_state
= llvmpipe_create_blend_state
;
197 llvmpipe
->pipe
.bind_blend_state
= llvmpipe_bind_blend_state
;
198 llvmpipe
->pipe
.delete_blend_state
= llvmpipe_delete_blend_state
;
200 llvmpipe
->pipe
.create_sampler_state
= llvmpipe_create_sampler_state
;
201 llvmpipe
->pipe
.bind_fragment_sampler_states
= llvmpipe_bind_sampler_states
;
202 llvmpipe
->pipe
.bind_vertex_sampler_states
= llvmpipe_bind_vertex_sampler_states
;
203 llvmpipe
->pipe
.delete_sampler_state
= llvmpipe_delete_sampler_state
;
205 llvmpipe
->pipe
.create_depth_stencil_alpha_state
= llvmpipe_create_depth_stencil_state
;
206 llvmpipe
->pipe
.bind_depth_stencil_alpha_state
= llvmpipe_bind_depth_stencil_state
;
207 llvmpipe
->pipe
.delete_depth_stencil_alpha_state
= llvmpipe_delete_depth_stencil_state
;
209 llvmpipe
->pipe
.create_rasterizer_state
= llvmpipe_create_rasterizer_state
;
210 llvmpipe
->pipe
.bind_rasterizer_state
= llvmpipe_bind_rasterizer_state
;
211 llvmpipe
->pipe
.delete_rasterizer_state
= llvmpipe_delete_rasterizer_state
;
213 llvmpipe
->pipe
.create_fs_state
= llvmpipe_create_fs_state
;
214 llvmpipe
->pipe
.bind_fs_state
= llvmpipe_bind_fs_state
;
215 llvmpipe
->pipe
.delete_fs_state
= llvmpipe_delete_fs_state
;
217 llvmpipe
->pipe
.create_vs_state
= llvmpipe_create_vs_state
;
218 llvmpipe
->pipe
.bind_vs_state
= llvmpipe_bind_vs_state
;
219 llvmpipe
->pipe
.delete_vs_state
= llvmpipe_delete_vs_state
;
221 llvmpipe
->pipe
.set_blend_color
= llvmpipe_set_blend_color
;
222 llvmpipe
->pipe
.set_clip_state
= llvmpipe_set_clip_state
;
223 llvmpipe
->pipe
.set_constant_buffer
= llvmpipe_set_constant_buffer
;
224 llvmpipe
->pipe
.set_framebuffer_state
= llvmpipe_set_framebuffer_state
;
225 llvmpipe
->pipe
.set_polygon_stipple
= llvmpipe_set_polygon_stipple
;
226 llvmpipe
->pipe
.set_scissor_state
= llvmpipe_set_scissor_state
;
227 llvmpipe
->pipe
.set_fragment_sampler_textures
= llvmpipe_set_sampler_textures
;
228 llvmpipe
->pipe
.set_vertex_sampler_textures
= llvmpipe_set_vertex_sampler_textures
;
229 llvmpipe
->pipe
.set_viewport_state
= llvmpipe_set_viewport_state
;
231 llvmpipe
->pipe
.set_vertex_buffers
= llvmpipe_set_vertex_buffers
;
232 llvmpipe
->pipe
.set_vertex_elements
= llvmpipe_set_vertex_elements
;
234 llvmpipe
->pipe
.draw_arrays
= llvmpipe_draw_arrays
;
235 llvmpipe
->pipe
.draw_elements
= llvmpipe_draw_elements
;
236 llvmpipe
->pipe
.draw_range_elements
= llvmpipe_draw_range_elements
;
238 llvmpipe
->pipe
.clear
= llvmpipe_clear
;
239 llvmpipe
->pipe
.flush
= llvmpipe_flush
;
241 llvmpipe
->pipe
.is_texture_referenced
= llvmpipe_is_texture_referenced
;
242 llvmpipe
->pipe
.is_buffer_referenced
= llvmpipe_is_buffer_referenced
;
244 llvmpipe_init_query_funcs( llvmpipe
);
245 llvmpipe_init_texture_funcs( llvmpipe
);
248 * Alloc caches for accessing drawing surfaces and textures.
250 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++)
251 llvmpipe
->cbuf_cache
[i
] = lp_create_tile_cache( screen
);
253 for (i
= 0; i
< PIPE_MAX_SAMPLERS
; i
++)
254 llvmpipe
->tex_cache
[i
] = lp_create_tex_tile_cache( screen
);
255 for (i
= 0; i
< PIPE_MAX_VERTEX_SAMPLERS
; i
++)
256 llvmpipe
->vertex_tex_cache
[i
] = lp_create_tex_tile_cache(screen
);
260 * Create drawing context and plug our rendering stage into it.
262 llvmpipe
->draw
= draw_create();
266 /* FIXME: devise alternative to draw_texture_samplers */
268 if (debug_get_bool_option( "LP_NO_RAST", FALSE
))
269 llvmpipe
->no_rast
= TRUE
;
271 llvmpipe
->vbuf_backend
= lp_create_vbuf_backend(llvmpipe
);
272 if (!llvmpipe
->vbuf_backend
)
275 llvmpipe
->vbuf
= draw_vbuf_stage(llvmpipe
->draw
, llvmpipe
->vbuf_backend
);
279 draw_set_rasterize_stage(llvmpipe
->draw
, llvmpipe
->vbuf
);
280 draw_set_render(llvmpipe
->draw
, llvmpipe
->vbuf_backend
);
284 /* plug in AA line/point stages */
285 draw_install_aaline_stage(llvmpipe
->draw
, &llvmpipe
->pipe
);
286 draw_install_aapoint_stage(llvmpipe
->draw
, &llvmpipe
->pipe
);
288 #if USE_DRAW_STAGE_PSTIPPLE
289 /* Do polygon stipple w/ texture map + frag prog? */
290 draw_install_pstipple_stage(llvmpipe
->draw
, &llvmpipe
->pipe
);
293 lp_init_surface_functions(llvmpipe
);
295 return &llvmpipe
->pipe
;
298 llvmpipe_destroy(&llvmpipe
->pipe
);