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_env_combine", NULL
},
54 { "GL_ARB_texture_env_dot3", NULL
},
55 { "GL_ARB_texture_mirrored_repeat", NULL
},
56 { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions
},
57 { "GL_EXT_framebuffer_blit", NULL
},
58 { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions
},
59 { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions
},
60 { "GL_EXT_stencil_wrap", NULL
},
61 { "GL_EXT_texture_lod_bias", NULL
},
62 { "GL_NV_blend_square", NULL
},
63 { "GL_SGIS_generate_mipmap", NULL
},
68 nouveau_channel_flush_notify(struct nouveau_channel
*chan
)
70 struct nouveau_context
*nctx
= chan
->user_private
;
71 GLcontext
*ctx
= &nctx
->base
;
73 if (nctx
->fallback
< SWRAST
)
74 nouveau_bo_state_emit(ctx
);
78 nouveau_context_create(gl_api api
,
79 const __GLcontextModes
*visual
, __DRIcontext
*dri_ctx
,
82 __DRIscreen
*dri_screen
= dri_ctx
->driScreenPriv
;
83 struct nouveau_screen
*screen
= dri_screen
->private;
84 struct nouveau_context
*nctx
;
87 ctx
= screen
->driver
->context_create(screen
, visual
, share_ctx
);
91 nctx
= to_nouveau_context(ctx
);
92 nctx
->dri_context
= dri_ctx
;
93 dri_ctx
->driverPrivate
= ctx
;
99 nouveau_context_init(GLcontext
*ctx
, struct nouveau_screen
*screen
,
100 const GLvisual
*visual
, GLcontext
*share_ctx
)
102 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
103 struct dd_function_table functions
;
106 nctx
->screen
= screen
;
107 nctx
->fallback
= HWTNL
;
109 /* Initialize the function pointers. */
110 _mesa_init_driver_functions(&functions
);
111 nouveau_driver_functions_init(&functions
);
112 nouveau_bufferobj_functions_init(&functions
);
113 nouveau_texture_functions_init(&functions
);
114 nouveau_fbo_functions_init(&functions
);
116 /* Initialize the mesa context. */
117 _mesa_initialize_context(ctx
, visual
, share_ctx
, &functions
, NULL
);
119 nouveau_state_init(ctx
);
120 nouveau_bo_state_init(ctx
);
121 _mesa_meta_init(ctx
);
122 _swrast_CreateContext(ctx
);
123 _vbo_CreateContext(ctx
);
124 _tnl_CreateContext(ctx
);
125 nouveau_span_functions_init(ctx
);
126 _mesa_allow_light_in_model(ctx
, GL_FALSE
);
128 /* Allocate a hardware channel. */
129 ret
= nouveau_channel_alloc(context_dev(ctx
), 0xbeef0201, 0xbeef0202,
132 nouveau_error("Error initializing the FIFO.\n");
136 nctx
->hw
.chan
->flush_notify
= nouveau_channel_flush_notify
;
137 nctx
->hw
.chan
->user_private
= nctx
;
139 /* Enable any supported extensions. */
140 driInitExtensions(ctx
, nouveau_extensions
, GL_TRUE
);
146 nouveau_context_deinit(GLcontext
*ctx
)
148 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
150 if (TNL_CONTEXT(ctx
))
151 _tnl_DestroyContext(ctx
);
153 if (vbo_context(ctx
))
154 _vbo_DestroyContext(ctx
);
156 if (SWRAST_CONTEXT(ctx
))
157 _swrast_DestroyContext(ctx
);
160 _mesa_meta_free(ctx
);
163 nouveau_channel_free(&nctx
->hw
.chan
);
165 nouveau_bo_state_destroy(ctx
);
166 _mesa_free_context_data(ctx
);
170 nouveau_context_destroy(__DRIcontext
*dri_ctx
)
172 struct nouveau_context
*nctx
= dri_ctx
->driverPrivate
;
173 GLcontext
*ctx
= &nctx
->base
;
175 context_drv(ctx
)->context_destroy(ctx
);
179 nouveau_update_renderbuffers(__DRIcontext
*dri_ctx
, __DRIdrawable
*draw
)
181 GLcontext
*ctx
= dri_ctx
->driverPrivate
;
182 __DRIscreen
*screen
= dri_ctx
->driScreenPriv
;
183 struct gl_framebuffer
*fb
= draw
->driverPrivate
;
184 unsigned int attachments
[10];
185 __DRIbuffer
*buffers
= NULL
;
186 int i
= 0, count
, ret
;
188 if (draw
->lastStamp
== *draw
->pStamp
)
190 draw
->lastStamp
= *draw
->pStamp
;
192 attachments
[i
++] = __DRI_BUFFER_FRONT_LEFT
;
193 if (fb
->Visual
.doubleBufferMode
)
194 attachments
[i
++] = __DRI_BUFFER_BACK_LEFT
;
195 if (fb
->Visual
.haveDepthBuffer
&& fb
->Visual
.haveStencilBuffer
)
196 attachments
[i
++] = __DRI_BUFFER_DEPTH_STENCIL
;
197 else if (fb
->Visual
.haveDepthBuffer
)
198 attachments
[i
++] = __DRI_BUFFER_DEPTH
;
199 else if (fb
->Visual
.haveStencilBuffer
)
200 attachments
[i
++] = __DRI_BUFFER_STENCIL
;
202 buffers
= (*screen
->dri2
.loader
->getBuffers
)(draw
, &draw
->w
, &draw
->h
,
203 attachments
, i
, &count
,
204 draw
->loaderPrivate
);
208 for (i
= 0; i
< count
; i
++) {
209 struct gl_renderbuffer
*rb
;
210 struct nouveau_surface
*s
;
214 switch (buffers
[i
].attachment
) {
215 case __DRI_BUFFER_FRONT_LEFT
:
216 case __DRI_BUFFER_FAKE_FRONT_LEFT
:
217 index
= BUFFER_FRONT_LEFT
;
219 case __DRI_BUFFER_BACK_LEFT
:
220 index
= BUFFER_BACK_LEFT
;
222 case __DRI_BUFFER_DEPTH
:
223 case __DRI_BUFFER_DEPTH_STENCIL
:
224 index
= BUFFER_DEPTH
;
226 case __DRI_BUFFER_STENCIL
:
227 index
= BUFFER_STENCIL
;
233 rb
= fb
->Attachment
[index
].Renderbuffer
;
234 s
= &to_nouveau_renderbuffer(rb
)->surface
;
238 s
->pitch
= buffers
[i
].pitch
;
239 s
->cpp
= buffers
[i
].cpp
;
241 /* Don't bother to reopen the bo if it happens to be
244 ret
= nouveau_bo_handle_get(s
->bo
, &old_handle
);
248 if (!s
->bo
|| old_handle
!= buffers
[i
].name
) {
249 nouveau_bo_ref(NULL
, &s
->bo
);
250 ret
= nouveau_bo_handle_ref(context_dev(ctx
),
251 buffers
[i
].name
, &s
->bo
);
256 _mesa_resize_framebuffer(NULL
, fb
, draw
->w
, draw
->h
);
260 update_framebuffer(__DRIcontext
*dri_ctx
, __DRIdrawable
*draw
,
263 GLcontext
*ctx
= dri_ctx
->driverPrivate
;
264 struct gl_framebuffer
*fb
= draw
->driverPrivate
;
266 *stamp
= *draw
->pStamp
;
268 nouveau_update_renderbuffers(dri_ctx
, draw
);
269 _mesa_resize_framebuffer(ctx
, fb
, draw
->w
, draw
->h
);
271 context_dirty(ctx
, FRAMEBUFFER
);
275 nouveau_context_make_current(__DRIcontext
*dri_ctx
, __DRIdrawable
*dri_draw
,
276 __DRIdrawable
*dri_read
)
279 struct nouveau_context
*nctx
= dri_ctx
->driverPrivate
;
280 GLcontext
*ctx
= &nctx
->base
;
282 /* Ask the X server for new renderbuffers. */
283 if (dri_draw
->driverPrivate
!= ctx
->WinSysDrawBuffer
)
284 update_framebuffer(dri_ctx
, dri_draw
,
285 &dri_ctx
->dri2
.draw_stamp
);
287 if (dri_draw
!= dri_read
&&
288 dri_read
->driverPrivate
!= ctx
->WinSysReadBuffer
)
289 update_framebuffer(dri_ctx
, dri_read
,
290 &dri_ctx
->dri2
.read_stamp
);
292 /* Pass it down to mesa. */
293 _mesa_make_current(ctx
, dri_draw
->driverPrivate
,
294 dri_read
->driverPrivate
);
295 _mesa_update_state(ctx
);
297 FIRE_RING(context_chan(ctx
));
300 _mesa_make_current(NULL
, NULL
, NULL
);
307 nouveau_context_unbind(__DRIcontext
*dri_ctx
)
313 nouveau_fallback(GLcontext
*ctx
, enum nouveau_fallback mode
)
315 struct nouveau_context
*nctx
= to_nouveau_context(ctx
);
317 nctx
->fallback
= MAX2(HWTNL
, mode
);
320 nouveau_state_emit(ctx
);
322 FIRE_RING(context_chan(ctx
));
326 nouveau_validate_framebuffer(GLcontext
*ctx
)
328 __DRIcontext
*dri_ctx
= to_nouveau_context(ctx
)->dri_context
;
329 __DRIdrawable
*dri_draw
= dri_ctx
->driDrawablePriv
;
330 __DRIdrawable
*dri_read
= dri_ctx
->driReadablePriv
;
332 if (ctx
->DrawBuffer
->Name
== 0 &&
333 dri_ctx
->dri2
.draw_stamp
!= *dri_draw
->pStamp
)
334 update_framebuffer(dri_ctx
, dri_draw
,
335 &dri_ctx
->dri2
.draw_stamp
);
337 if (ctx
->ReadBuffer
->Name
== 0 && dri_draw
!= dri_read
&&
338 dri_ctx
->dri2
.read_stamp
!= *dri_read
->pStamp
)
339 update_framebuffer(dri_ctx
, dri_read
,
340 &dri_ctx
->dri2
.read_stamp
);
342 if (nouveau_next_dirty_state(ctx
) >= 0) {
343 nouveau_state_emit(ctx
);
344 FIRE_RING(context_chan(ctx
));