2 * Copyright (C) 2009-2010 Francisco Jerez.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 #include "nouveau_driver.h"
28 #include "nouveau_context.h"
29 #include "nouveau_bufferobj.h"
30 #include "nouveau_fbo.h"
33 #include "main/framebuffer.h"
34 #include "main/light.h"
35 #include "main/state.h"
36 #include "drivers/common/meta.h"
37 #include "drivers/common/driverfuncs.h"
38 #include "swrast/swrast.h"
39 #include "swrast/s_context.h"
42 #include "tnl/t_context.h"
44 #define need_GL_EXT_framebuffer_object
45 #define need_GL_EXT_fog_coord
46 #define need_GL_EXT_secondary_color
48 #include "main/remap_helper.h"
50 static const struct dri_extension nouveau_extensions
[] = {
51 { "GL_ARB_multitexture", NULL
},
52 { "GL_ARB_texture_env_add", NULL
},
53 { "GL_ARB_texture_mirrored_repeat", NULL
},
54 { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions
},
55 { "GL_EXT_framebuffer_blit", NULL
},
56 { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions
},
57 { "GL_EXT_packed_depth_stencil", NULL
},
58 { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions
},
59 { "GL_EXT_stencil_wrap", NULL
},
60 { "GL_EXT_texture_env_combine", NULL
},
61 { "GL_EXT_texture_filter_anisotropic", NULL
},
62 { "GL_EXT_texture_lod_bias", NULL
},
63 { "GL_NV_blend_square", NULL
},
64 { "GL_NV_texture_env_combine4", NULL
},
69 nouveau_channel_flush_notify(struct nouveau_channel
*chan
)
71 struct nouveau_context
*nctx
= chan
->user_private
;
72 struct gl_context
*ctx
= &nctx
->base
;
74 if (nctx
->fallback
< SWRAST
)
75 nouveau_bo_state_emit(ctx
);
79 nouveau_context_create(gl_api api
,
80 const struct gl_config
*visual
, __DRIcontext
*dri_ctx
,
83 __DRIscreen
*dri_screen
= dri_ctx
->driScreenPriv
;
84 struct nouveau_screen
*screen
= dri_screen
->private;
85 struct nouveau_context
*nctx
;
86 struct gl_context
*ctx
;
88 ctx
= screen
->driver
->context_create(screen
, visual
, share_ctx
);
92 nctx
= to_nouveau_context(ctx
);
93 nctx
->dri_context
= dri_ctx
;
94 dri_ctx
->driverPrivate
= ctx
;
100 nouveau_context_init(struct gl_context
*ctx
, struct nouveau_screen
*screen
,
101 const struct gl_config
*visual
, struct gl_context
*share_ctx
)
103 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
104 struct dd_function_table functions
;
107 nctx
->screen
= screen
;
108 nctx
->fallback
= HWTNL
;
110 /* Initialize the function pointers. */
111 _mesa_init_driver_functions(&functions
);
112 nouveau_driver_functions_init(&functions
);
113 nouveau_bufferobj_functions_init(&functions
);
114 nouveau_texture_functions_init(&functions
);
115 nouveau_fbo_functions_init(&functions
);
117 /* Initialize the mesa context. */
118 _mesa_initialize_context(ctx
, API_OPENGL
, visual
,
119 share_ctx
, &functions
, NULL
);
121 nouveau_state_init(ctx
);
122 nouveau_bo_state_init(ctx
);
123 nouveau_scratch_init(ctx
);
124 _mesa_meta_init(ctx
);
125 _swrast_CreateContext(ctx
);
126 _vbo_CreateContext(ctx
);
127 _tnl_CreateContext(ctx
);
128 nouveau_span_functions_init(ctx
);
129 _mesa_allow_light_in_model(ctx
, GL_FALSE
);
131 /* Allocate a hardware channel. */
132 ret
= nouveau_channel_alloc(context_dev(ctx
), 0xbeef0201, 0xbeef0202,
133 512*1024, &nctx
->hw
.chan
);
135 nouveau_error("Error initializing the FIFO.\n");
139 nctx
->hw
.chan
->flush_notify
= nouveau_channel_flush_notify
;
140 nctx
->hw
.chan
->user_private
= nctx
;
142 /* Enable any supported extensions. */
143 driInitExtensions(ctx
, nouveau_extensions
, GL_TRUE
);
149 nouveau_context_deinit(struct gl_context
*ctx
)
151 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
153 if (TNL_CONTEXT(ctx
))
154 _tnl_DestroyContext(ctx
);
156 if (vbo_context(ctx
))
157 _vbo_DestroyContext(ctx
);
159 if (SWRAST_CONTEXT(ctx
))
160 _swrast_DestroyContext(ctx
);
163 _mesa_meta_free(ctx
);
166 nouveau_channel_free(&nctx
->hw
.chan
);
168 nouveau_scratch_destroy(ctx
);
169 nouveau_bo_state_destroy(ctx
);
170 _mesa_free_context_data(ctx
);
174 nouveau_context_destroy(__DRIcontext
*dri_ctx
)
176 struct nouveau_context
*nctx
= dri_ctx
->driverPrivate
;
177 struct gl_context
*ctx
= &nctx
->base
;
179 context_drv(ctx
)->context_destroy(ctx
);
183 nouveau_update_renderbuffers(__DRIcontext
*dri_ctx
, __DRIdrawable
*draw
)
185 struct gl_context
*ctx
= dri_ctx
->driverPrivate
;
186 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
187 __DRIscreen
*screen
= dri_ctx
->driScreenPriv
;
188 struct gl_framebuffer
*fb
= draw
->driverPrivate
;
189 struct nouveau_framebuffer
*nfb
= to_nouveau_framebuffer(fb
);
190 unsigned int attachments
[10];
191 __DRIbuffer
*buffers
= NULL
;
192 int i
= 0, count
, ret
;
194 if (draw
->lastStamp
== *draw
->pStamp
)
196 draw
->lastStamp
= *draw
->pStamp
;
199 attachments
[i
++] = __DRI_BUFFER_FRONT_LEFT
;
200 if (fb
->Visual
.doubleBufferMode
)
201 attachments
[i
++] = __DRI_BUFFER_BACK_LEFT
;
202 if (fb
->Visual
.haveDepthBuffer
&& fb
->Visual
.haveStencilBuffer
)
203 attachments
[i
++] = __DRI_BUFFER_DEPTH_STENCIL
;
204 else if (fb
->Visual
.haveDepthBuffer
)
205 attachments
[i
++] = __DRI_BUFFER_DEPTH
;
206 else if (fb
->Visual
.haveStencilBuffer
)
207 attachments
[i
++] = __DRI_BUFFER_STENCIL
;
209 buffers
= (*screen
->dri2
.loader
->getBuffers
)(draw
, &draw
->w
, &draw
->h
,
210 attachments
, i
, &count
,
211 draw
->loaderPrivate
);
215 for (i
= 0; i
< count
; i
++) {
216 struct gl_renderbuffer
*rb
;
217 struct nouveau_surface
*s
;
221 switch (buffers
[i
].attachment
) {
222 case __DRI_BUFFER_FRONT_LEFT
:
223 case __DRI_BUFFER_FAKE_FRONT_LEFT
:
224 index
= BUFFER_FRONT_LEFT
;
226 case __DRI_BUFFER_BACK_LEFT
:
227 index
= BUFFER_BACK_LEFT
;
229 case __DRI_BUFFER_DEPTH
:
230 case __DRI_BUFFER_DEPTH_STENCIL
:
231 index
= BUFFER_DEPTH
;
233 case __DRI_BUFFER_STENCIL
:
234 index
= BUFFER_STENCIL
;
240 rb
= fb
->Attachment
[index
].Renderbuffer
;
241 s
= &to_nouveau_renderbuffer(rb
)->surface
;
245 s
->pitch
= buffers
[i
].pitch
;
246 s
->cpp
= buffers
[i
].cpp
;
248 if (index
== BUFFER_DEPTH
&& s
->bo
) {
249 ret
= nouveau_bo_handle_get(s
->bo
, &old_name
);
251 * Disable fast Z clears in the next frame, the
252 * depth buffer contents are undefined.
254 if (!ret
&& old_name
!= buffers
[i
].name
)
255 nctx
->hierz
.clear_seq
= 0;
258 nouveau_bo_ref(NULL
, &s
->bo
);
259 ret
= nouveau_bo_handle_ref(context_dev(ctx
),
260 buffers
[i
].name
, &s
->bo
);
264 _mesa_resize_framebuffer(NULL
, fb
, draw
->w
, draw
->h
);
268 update_framebuffer(__DRIcontext
*dri_ctx
, __DRIdrawable
*draw
,
271 struct gl_context
*ctx
= dri_ctx
->driverPrivate
;
272 struct gl_framebuffer
*fb
= draw
->driverPrivate
;
274 *stamp
= *draw
->pStamp
;
276 nouveau_update_renderbuffers(dri_ctx
, draw
);
277 _mesa_resize_framebuffer(ctx
, fb
, draw
->w
, draw
->h
);
279 /* Clean up references to the old framebuffer objects. */
280 context_dirty(ctx
, FRAMEBUFFER
);
281 context_bctx(ctx
, FRAMEBUFFER
);
282 FIRE_RING(context_chan(ctx
));
286 nouveau_context_make_current(__DRIcontext
*dri_ctx
, __DRIdrawable
*dri_draw
,
287 __DRIdrawable
*dri_read
)
290 struct nouveau_context
*nctx
= dri_ctx
->driverPrivate
;
291 struct gl_context
*ctx
= &nctx
->base
;
293 /* Ask the X server for new renderbuffers. */
294 if (dri_draw
->driverPrivate
!= ctx
->WinSysDrawBuffer
)
295 update_framebuffer(dri_ctx
, dri_draw
,
296 &dri_ctx
->dri2
.draw_stamp
);
298 if (dri_draw
!= dri_read
&&
299 dri_read
->driverPrivate
!= ctx
->WinSysReadBuffer
)
300 update_framebuffer(dri_ctx
, dri_read
,
301 &dri_ctx
->dri2
.read_stamp
);
303 /* Pass it down to mesa. */
304 _mesa_make_current(ctx
, dri_draw
->driverPrivate
,
305 dri_read
->driverPrivate
);
306 _mesa_update_state(ctx
);
309 _mesa_make_current(NULL
, NULL
, NULL
);
316 nouveau_context_unbind(__DRIcontext
*dri_ctx
)
318 /* Unset current context and dispatch table */
319 _mesa_make_current(NULL
, NULL
, NULL
);
325 nouveau_fallback(struct gl_context
*ctx
, enum nouveau_fallback mode
)
327 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
329 nctx
->fallback
= MAX2(HWTNL
, mode
);
332 nouveau_state_emit(ctx
);
333 nouveau_bo_state_emit(ctx
);
335 FIRE_RING(context_chan(ctx
));
340 validate_framebuffer(__DRIcontext
*dri_ctx
, __DRIdrawable
*draw
,
343 struct gl_framebuffer
*fb
= draw
->driverPrivate
;
344 struct nouveau_framebuffer
*nfb
= to_nouveau_framebuffer(fb
);
345 GLboolean need_front
=
346 (fb
->_ColorDrawBufferIndexes
[0] == BUFFER_FRONT_LEFT
||
347 fb
->_ColorReadBufferIndex
== BUFFER_FRONT_LEFT
);
349 if (nfb
->need_front
!= need_front
) {
350 nfb
->need_front
= need_front
;
351 dri2InvalidateDrawable(draw
);
354 if (*draw
->pStamp
!= *stamp
)
355 update_framebuffer(dri_ctx
, draw
, stamp
);
359 nouveau_validate_framebuffer(struct gl_context
*ctx
)
361 __DRIcontext
*dri_ctx
= to_nouveau_context(ctx
)->dri_context
;
362 __DRIdrawable
*dri_draw
= dri_ctx
->driDrawablePriv
;
363 __DRIdrawable
*dri_read
= dri_ctx
->driReadablePriv
;
365 if (ctx
->DrawBuffer
->Name
== 0)
366 validate_framebuffer(dri_ctx
, dri_draw
,
367 &dri_ctx
->dri2
.draw_stamp
);
369 if (ctx
->ReadBuffer
->Name
== 0)
370 validate_framebuffer(dri_ctx
, dri_read
,
371 &dri_ctx
->dri2
.read_stamp
);
373 if (ctx
->NewState
& _NEW_BUFFERS
)
374 _mesa_update_state(ctx
);